diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-06-17 13:06:17 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-17 13:06:17 +0200 |
| commit | a3d06cc6aa3e765dc2bf98626f87272dcf641dca (patch) | |
| tree | aa3e49b58f08d6c0ea55cdca4fb5e6c8ba6ae333 /arch/arm/mach-omap2 | |
| parent | 0990b1c65729012a63e0eeca93aaaafea4e9a064 (diff) | |
| parent | 65795efbd380a832ae508b04dba8f8e53f0b84d9 (diff) | |
Merge branch 'linus' into perfcounters/core
Conflicts:
arch/x86/include/asm/kmap_types.h
include/linux/mm.h
include/asm-generic/kmap_types.h
Merge reason: We crossed changes with kmap_types.h cleanups in mainline.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-omap2')
53 files changed, 5672 insertions, 806 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 64ab386a65c..a755eb5e236 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -25,7 +25,7 @@ config ARCH_OMAP3430 select ARCH_OMAP_OTG comment "OMAP Board Type" - depends on ARCH_OMAP2 || ARCH_OMAP3 + depends on ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4 config MACH_OMAP_GENERIC bool "Generic OMAP board" @@ -56,6 +56,10 @@ config MACH_OVERO bool "Gumstix Overo board" depends on ARCH_OMAP3 && ARCH_OMAP34XX +config MACH_OMAP3EVM + bool "OMAP 3530 EVM board" + depends on ARCH_OMAP3 && ARCH_OMAP34XX + config MACH_OMAP3_PANDORA bool "OMAP3 Pandora" depends on ARCH_OMAP3 && ARCH_OMAP34XX @@ -67,3 +71,11 @@ config MACH_OMAP_3430SDP config MACH_NOKIA_RX51 bool "Nokia RX-51 board" depends on ARCH_OMAP3 && ARCH_OMAP34XX + +config MACH_OMAP_ZOOM2 + bool "OMAP3 Zoom2 board" + depends on ARCH_OMAP3 && ARCH_OMAP34XX + +config MACH_OMAP_4430SDP + bool "OMAP 4430 SDP board" + depends on ARCH_OMAP4 diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index c49d9bfa3ab..735bae5b0de 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -3,12 +3,21 @@ # # Common support -obj-y := irq.o id.o io.o sdrc.o control.o prcm.o clock.o mux.o \ - devices.o serial.o gpmc.o timer-gp.o powerdomain.o \ - clockdomain.o +obj-y := id.o io.o control.o mux.o devices.o serial.o gpmc.o timer-gp.o + +omap-2-3-common = irq.o sdrc.o +prcm-common = prcm.o powerdomain.o +clock-common = clock.o clockdomain.o + +obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(prcm-common) $(clock-common) +obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(prcm-common) $(clock-common) obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o +# SMP support ONLY available for OMAP4 +obj-$(CONFIG_SMP) += omap-smp.o omap-headsmp.o +obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o + # Functions loaded to SRAM obj-$(CONFIG_ARCH_OMAP2420) += sram242x.o obj-$(CONFIG_ARCH_OMAP2430) += sram243x.o @@ -20,14 +29,21 @@ obj-$(CONFIG_ARCH_OMAP2) += sdrc2xxx.o # Power Management ifeq ($(CONFIG_PM),y) -obj-y += pm.o +obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o obj-$(CONFIG_ARCH_OMAP24XX) += sleep24xx.o +obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o +obj-$(CONFIG_PM_DEBUG) += pm-debug.o endif # Clock framework obj-$(CONFIG_ARCH_OMAP2) += clock24xx.o obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o +iommu-y += iommu2.o +iommu-$(CONFIG_ARCH_OMAP3) += omap3-iommu.o + +obj-$(CONFIG_OMAP_IOMMU) += $(iommu-y) + # Specific board support obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o @@ -40,6 +56,8 @@ obj-$(CONFIG_MACH_OMAP_LDP) += board-ldp.o \ mmc-twl4030.o obj-$(CONFIG_MACH_OVERO) += board-overo.o \ mmc-twl4030.o +obj-$(CONFIG_MACH_OMAP3EVM) += board-omap3evm.o \ + mmc-twl4030.o obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o \ mmc-twl4030.o obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \ @@ -48,8 +66,17 @@ obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o \ obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \ board-rx51-peripherals.o \ mmc-twl4030.o +obj-$(CONFIG_MACH_OMAP_ZOOM2) += board-zoom2.o \ + mmc-twl4030.o \ + board-zoom-debugboard.o + +obj-$(CONFIG_MACH_OMAP_4430SDP) += board-4430sdp.o # Platform specific device init code -ifeq ($(CONFIG_USB_MUSB_SOC),y) obj-y += usb-musb.o -endif + +onenand-$(CONFIG_MTD_ONENAND_OMAP2) := gpmc-onenand.o +obj-y += $(onenand-m) $(onenand-y) + +smc91x-$(CONFIG_SMC91X) := gpmc-smc91x.o +obj-y += $(smc91x-m) $(smc91x-y) diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c index 22143651037..9c3fdcdf76c 100644 --- a/arch/arm/mach-omap2/board-2430sdp.c +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -36,14 +36,12 @@ #include <mach/common.h> #include <mach/gpmc.h> #include <mach/usb.h> +#include <mach/gpmc-smc91x.h> #include "mmc-twl4030.h" #define SDP2430_CS0_BASE 0x04000000 -#define SDP2430_FLASH_CS 0 -#define SDP2430_SMC91X_CS 5 - -#define SDP2430_ETHR_GPIO_IRQ 149 +#define SECONDARY_LCD_GPIO 147 static struct mtd_partition sdp2430_partitions[] = { /* bootloader (U-Boot, etc) in first sector */ @@ -99,100 +97,53 @@ static struct platform_device sdp2430_flash_device = { .resource = &sdp2430_flash_resource, }; -static struct resource sdp2430_smc91x_resources[] = { - [0] = { - .start = SDP2430_CS0_BASE, - .end = SDP2430_CS0_BASE + SZ_64M - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ), - .end = OMAP_GPIO_IRQ(SDP2430_ETHR_GPIO_IRQ), - .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - }, -}; - -static struct platform_device sdp2430_smc91x_device = { - .name = "smc91x", +static struct platform_device sdp2430_lcd_device = { + .name = "sdp2430_lcd", .id = -1, - .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources), - .resource = sdp2430_smc91x_resources, }; static struct platform_device *sdp2430_devices[] __initdata = { - &sdp2430_smc91x_device, &sdp2430_flash_device, + &sdp2430_lcd_device, }; -static inline void __init sdp2430_init_smc91x(void) -{ - int eth_cs; - unsigned long cs_mem_base; - unsigned int rate; - struct clk *gpmc_fck; +static struct omap_lcd_config sdp2430_lcd_config __initdata = { + .ctrl_name = "internal", +}; - eth_cs = SDP2430_SMC91X_CS; +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE) - gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */ - if (IS_ERR(gpmc_fck)) { - WARN_ON(1); - return; - } +static struct omap_smc91x_platform_data board_smc91x_data = { + .cs = 5, + .gpio_irq = 149, + .flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 | + IORESOURCE_IRQ_LOWLEVEL, - clk_enable(gpmc_fck); - rate = clk_get_rate(gpmc_fck); - - /* Make sure CS1 timings are correct, for 2430 always muxed */ - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); - - if (rate >= 160000000) { - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); - } else if (rate >= 130000000) { - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); - } else { /* rate = 100000000 */ - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); - gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); - } +}; - if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { - printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); - goto out; - } +static void __init board_smc91x_init(void) +{ + if (omap_rev() > OMAP3430_REV_ES1_0) + board_smc91x_data.gpio_irq = 6; + else + board_smc91x_data.gpio_irq = 29; - sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300; - sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f; - udelay(100); + gpmc_smc91x_init(&board_smc91x_data); +} - if (gpio_request(SDP2430_ETHR_GPIO_IRQ, "SMC91x irq") < 0) { - printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", - SDP2430_ETHR_GPIO_IRQ); - gpmc_cs_free(eth_cs); - goto out; - } - gpio_direction_input(SDP2430_ETHR_GPIO_IRQ); +#else -out: - clk_disable(gpmc_fck); - clk_put(gpmc_fck); +static inline void board_smc91x_init(void) +{ } +#endif + static void __init omap_2430sdp_init_irq(void) { omap2_init_common_hw(NULL); omap_init_irq(); omap_gpio_init(); - sdp2430_init_smc91x(); } static struct omap_uart_config sdp2430_uart_config __initdata = { @@ -201,6 +152,7 @@ static struct omap_uart_config sdp2430_uart_config __initdata = { static struct omap_board_config_kernel sdp2430_config[] = { {OMAP_TAG_UART, &sdp2430_uart_config}, + {OMAP_TAG_LCD, &sdp2430_lcd_config}, }; @@ -248,6 +200,8 @@ static struct twl4030_hsmmc_info mmc[] __initdata = { static void __init omap_2430sdp_init(void) { + int ret; + omap2430_i2c_init(); platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices)); @@ -256,6 +210,12 @@ static void __init omap_2430sdp_init(void) omap_serial_init(); twl4030_mmc_init(mmc); usb_musb_init(); + board_smc91x_init(); + + /* Turn off secondary LCD backlight */ + ret = gpio_request(SECONDARY_LCD_GPIO, "Secondary LCD backlight"); + if (ret == 0) + gpio_direction_output(SECONDARY_LCD_GPIO, 0); } static void __init omap_2430sdp_map_io(void) diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index ed927497212..496a90e4ea7 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -39,15 +39,13 @@ #include <mach/control.h> #include <mach/keypad.h> +#include <mach/gpmc-smc91x.h> +#include "sdram-qimonda-hyb18m512160af-6.h" #include "mmc-twl4030.h" #define CONFIG_DISABLE_HFCLK 1 -#define SDP3430_ETHR_GPIO_IRQ_SDPV1 29 -#define SDP3430_ETHR_GPIO_IRQ_SDPV2 6 -#define SDP3430_SMC91X_CS 3 - #define SDP3430_TS_GPIO_IRQ_SDPV1 3 #define SDP3430_TS_GPIO_IRQ_SDPV2 2 @@ -56,24 +54,6 @@ #define TWL4030_MSECURE_GPIO 22 -static struct resource sdp3430_smc91x_resources[] = { - [0] = { - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = 0, - .end = 0, - .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - }, -}; - -static struct platform_device sdp3430_smc91x_device = { - .name = "smc91x", - .id = -1, - .num_resources = ARRAY_SIZE(sdp3430_smc91x_resources), - .resource = sdp3430_smc91x_resources, -}; - static int sdp3430_keymap[] = { KEY(0, 0, KEY_LEFT), KEY(0, 1, KEY_RIGHT), @@ -184,48 +164,14 @@ static struct regulator_consumer_supply sdp3430_vdvi_supply = { }; static struct platform_device *sdp3430_devices[] __initdata = { - &sdp3430_smc91x_device, &sdp3430_lcd_device, }; -static inline void __init sdp3430_init_smc91x(void) -{ - int eth_cs; - unsigned long cs_mem_base; - int eth_gpio = 0; - - eth_cs = SDP3430_SMC91X_CS; - - if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { - printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); - return; - } - - sdp3430_smc91x_resources[0].start = cs_mem_base + 0x300; - sdp3430_smc91x_resources[0].end = cs_mem_base + 0x30f; - udelay(100); - - if (omap_rev() > OMAP3430_REV_ES1_0) - eth_gpio = SDP3430_ETHR_GPIO_IRQ_SDPV2; - else - eth_gpio = SDP3430_ETHR_GPIO_IRQ_SDPV1; - - sdp3430_smc91x_resources[1].start = gpio_to_irq(eth_gpio); - - if (gpio_request(eth_gpio, "SMC91x irq") < 0) { - printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", - eth_gpio); - return; - } - gpio_direction_input(eth_gpio); -} - static void __init omap_3430sdp_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(hyb18m512160af6_sdrc_params); omap_init_irq(); omap_gpio_init(); - sdp3430_init_smc91x(); } static struct omap_uart_config sdp3430_uart_config __initdata = { @@ -506,6 +452,32 @@ static int __init omap3430_i2c_init(void) return 0; } +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + +static struct omap_smc91x_platform_data board_smc91x_data = { + .cs = 3, + .flags = GPMC_MUX_ADD_DATA | GPMC_TIMINGS_SMC91C96 | + IORESOURCE_IRQ_LOWLEVEL, +}; + +static void __init board_smc91x_init(void) +{ + if (omap_rev() > OMAP3430_REV_ES1_0) + board_smc91x_data.gpio_irq = 6; + else + board_smc91x_data.gpio_irq = 29; + + gpmc_smc91x_init(&board_smc91x_data); +} + +#else + +static inline void board_smc91x_init(void) +{ +} + +#endif + static void __init omap_3430sdp_init(void) { omap3430_i2c_init(); @@ -522,6 +494,7 @@ static void __init omap_3430sdp_init(void) ads7846_dev_init(); omap_serial_init(); usb_musb_init(); + board_smc91x_init(); } static void __init omap_3430sdp_map_io(void) diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c new file mode 100644 index 00000000000..57e477bd89c --- /dev/null +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -0,0 +1,94 @@ +/* + * Board support file for OMAP4430 SDP. + * + * Copyright (C) 2009 Texas Instruments + * + * Author: Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Based on mach-omap2/board-3430sdp.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/gpio.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/board.h> +#include <mach/common.h> +#include <mach/control.h> +#include <mach/timer-gp.h> +#include <asm/hardware/gic.h> + +static struct platform_device sdp4430_lcd_device = { + .name = "sdp4430_lcd", + .id = -1, +}; + +static struct platform_device *sdp4430_devices[] __initdata = { + &sdp4430_lcd_device, +}; + +static struct omap_uart_config sdp4430_uart_config __initdata = { + .enabled_uarts = (1 << 0) | (1 << 1) | (1 << 2), +}; + +static struct omap_lcd_config sdp4430_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static struct omap_board_config_kernel sdp4430_config[] __initdata = { + { OMAP_TAG_UART, &sdp4430_uart_config }, + { OMAP_TAG_LCD, &sdp4430_lcd_config }, +}; + +static void __init gic_init_irq(void) +{ + gic_dist_init(0, IO_ADDRESS(OMAP44XX_GIC_DIST_BASE), 29); + gic_cpu_init(0, IO_ADDRESS(OMAP44XX_GIC_CPU_BASE)); +} + +static void __init omap_4430sdp_init_irq(void) +{ + omap2_init_common_hw(NULL); +#ifdef CONFIG_OMAP_32K_TIMER + omap2_gp_clockevent_set_gptimer(1); +#endif + gic_init_irq(); + omap_gpio_init(); +} + + +static void __init omap_4430sdp_init(void) +{ + platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices)); + omap_board_config = sdp4430_config; + omap_board_config_size = ARRAY_SIZE(sdp4430_config); + omap_serial_init(); +} + +static void __init omap_4430sdp_map_io(void) +{ + omap2_set_globals_443x(); + omap2_map_common_io(); +} + +MACHINE_START(OMAP_4430SDP, "OMAP4430 4430SDP board") + /* Maintainer: Santosh Shilimkar - Texas Instruments Inc */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap_4430sdp_map_io, + .init_irq = omap_4430sdp_init_irq, + .init_machine = omap_4430sdp_init, + .timer = &omap_timer, +MACHINE_END diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index da57b0fcda1..d8bc0a7dcb8 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -16,11 +16,13 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/input.h> +#include <linux/gpio_keys.h> #include <linux/workqueue.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> +#include <linux/regulator/machine.h> #include <linux/i2c/twl4030.h> #include <linux/io.h> #include <linux/smsc911x.h> @@ -39,6 +41,7 @@ #include <asm/delay.h> #include <mach/control.h> #include <mach/usb.h> +#include <mach/keypad.h> #include "mmc-twl4030.h" @@ -77,8 +80,163 @@ static struct platform_device ldp_smsc911x_device = { }, }; -static struct platform_device *ldp_devices[] __initdata = { - &ldp_smsc911x_device, +static int ldp_twl4030_keymap[] = { + KEY(0, 0, KEY_1), + KEY(1, 0, KEY_2), + KEY(2, 0, KEY_3), + KEY(0, 1, KEY_4), + KEY(1, 1, KEY_5), + KEY(2, 1, KEY_6), + KEY(3, 1, KEY_F5), + KEY(0, 2, KEY_7), + KEY(1, 2, KEY_8), + KEY(2, 2, KEY_9), + KEY(3, 2, KEY_F6), + KEY(0, 3, KEY_F7), + KEY(1, 3, KEY_0), + KEY(2, 3, KEY_F8), + PERSISTENT_KEY(4, 5), + KEY(4, 4, KEY_VOLUMEUP), + KEY(5, 5, KEY_VOLUMEDOWN), + 0 +}; + +static struct twl4030_keypad_data ldp_kp_twl4030_data = { + .rows = 6, + .cols = 6, + .keymap = ldp_twl4030_keymap, + .keymapsize = ARRAY_SIZE(ldp_twl4030_keymap), + .rep = 1, +}; + +static struct gpio_keys_button ldp_gpio_keys_buttons[] = { + [0] = { + .code = KEY_ENTER, + .gpio = 101, + .desc = "enter sw", + .active_low = 1, + .debounce_interval = 30, + }, + [1] = { + .code = KEY_F1, + .gpio = 102, + .desc = "func 1", + .active_low = 1, + .debounce_interval = 30, + }, + [2] = { + .code = KEY_F2, + .gpio = 103, + .desc = "func 2", + .active_low = 1, + .debounce_interval = 30, + }, + [3] = { + .code = KEY_F3, + .gpio = 104, + .desc = "func 3", + .active_low = 1, + .debounce_interval = 30, + }, + [4] = { + .code = KEY_F4, + .gpio = 105, + .desc = "func 4", + .active_low = 1, + .debounce_interval = 30, + }, + [5] = { + .code = KEY_LEFT, + .gpio = 106, + .desc = "left sw", + .active_low = 1, + .debounce_interval = 30, + }, + [6] = { + .code = KEY_RIGHT, + .gpio = 107, + .desc = "right sw", + .active_low = 1, + .debounce_interval = 30, + }, + [7] = { + .code = KEY_UP, + .gpio = 108, + .desc = "up sw", + .active_low = 1, + .debounce_interval = 30, + }, + [8] = { + .code = KEY_DOWN, + .gpio = 109, + .desc = "down sw", + .active_low = 1, + .debounce_interval = 30, + }, +}; + +static struct gpio_keys_platform_data ldp_gpio_keys = { + .buttons = ldp_gpio_keys_buttons, + .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons), + .rep = 1, +}; + +static struct platform_device ldp_gpio_keys_device = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &ldp_gpio_keys, + }, +}; + +static int ts_gpio; + +/** + * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq + * + * @return - void. If request gpio fails then Flag KERN_ERR. + */ +static void ads7846_dev_init(void) +{ + if (gpio_request(ts_gpio, "ads7846 irq") < 0) { + printk(KERN_ERR "can't get ads746 pen down GPIO\n"); + return; + } + + gpio_direction_input(ts_gpio); + omap_set_gpio_debounce(ts_gpio, 1); + omap_set_gpio_debounce_time(ts_gpio, 0xa); +} + +static int ads7846_get_pendown_state(void) +{ + return !gpio_get_value(ts_gpio); +} + +static struct ads7846_platform_data tsc2046_config __initdata = { + .get_pendown_state = ads7846_get_pendown_state, + .keep_vref_on = 1, +}; + +static struct omap2_mcspi_device_config tsc2046_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +static struct spi_board_info ldp_spi_board_info[] __initdata = { + [0] = { + /* + * TSC2046 operates at a max freqency of 2MHz, so + * operate slightly below at 1.5MHz + */ + .modalias = "ads7846", + .bus_num = 1, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &tsc2046_mcspi_config, + .irq = 0, + .platform_data = &tsc2046_config, + }, }; static inline void __init ldp_init_smsc911x(void) @@ -122,8 +280,22 @@ static struct omap_uart_config ldp_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; +static struct platform_device ldp_lcd_device = { + .name = "ldp_lcd", + .id = -1, +}; + +static struct omap_lcd_config ldp_lcd_config __initdata = { + .ctrl_name = "internal", +}; + static struct omap_board_config_kernel ldp_config[] __initdata = { { OMAP_TAG_UART, &ldp_uart_config }, + { OMAP_TAG_LCD, &ldp_lcd_config }, +}; + +static struct twl4030_usb_data ldp_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, }; static struct twl4030_gpio_platform_data ldp_gpio_data = { @@ -132,12 +304,39 @@ static struct twl4030_gpio_platform_data ldp_gpio_data = { .irq_end = TWL4030_GPIO_IRQ_END, }; +static struct twl4030_madc_platform_data ldp_madc_data = { + .irq_line = 1, +}; + +static struct regulator_consumer_supply ldp_vmmc1_supply = { + .supply = "vmmc", +}; + +/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ +static struct regulator_init_data ldp_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &ldp_vmmc1_supply, +}; + static struct twl4030_platform_data ldp_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, /* platform_data for children goes here */ + .madc = &ldp_madc_data, + .usb = &ldp_usb_data, + .vmmc1 = &ldp_vmmc1, .gpio = &ldp_gpio_data, + .keypad = &ldp_kp_twl4030_data, }; static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = { @@ -168,15 +367,29 @@ static struct twl4030_hsmmc_info mmc[] __initdata = { {} /* Terminator */ }; +static struct platform_device *ldp_devices[] __initdata = { + &ldp_smsc911x_device, + &ldp_lcd_device, + &ldp_gpio_keys_device, +}; + static void __init omap_ldp_init(void) { omap_i2c_init(); platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices)); omap_board_config = ldp_config; omap_board_config_size = ARRAY_SIZE(ldp_config); + ts_gpio = 54; + ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio); + spi_register_board_info(ldp_spi_board_info, + ARRAY_SIZE(ldp_spi_board_info)); + ads7846_dev_init(); omap_serial_init(); - twl4030_mmc_init(mmc); usb_musb_init(); + + twl4030_mmc_init(mmc); + /* link regulators to MMC adapters */ + ldp_vmmc1_supply.dev = mmc[0].dev; } static void __init omap_ldp_map_io(void) diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 3a7a29d1f9a..991ac9c3803 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -28,6 +28,7 @@ #include <linux/mtd/partitions.h> #include <linux/mtd/nand.h> +#include <linux/regulator/machine.h> #include <linux/i2c/twl4030.h> #include <mach/hardware.h> @@ -105,6 +106,8 @@ static struct platform_device omap3beagle_nand_device = { .resource = &omap3beagle_nand_resource, }; +#include "sdram-micron-mt46h32m32lf-6.h" + static struct omap_uart_config omap3_beagle_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; @@ -118,6 +121,23 @@ static struct twl4030_hsmmc_info mmc[] = { {} /* Terminator */ }; +static struct platform_device omap3_beagle_lcd_device = { + .name = "omap3beagle_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap3_beagle_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static struct regulator_consumer_supply beagle_vmmc1_supply = { + .supply = "vmmc", +}; + +static struct regulator_consumer_supply beagle_vsim_supply = { + .supply = "vmmc_aux", +}; + static struct gpio_led gpio_leds[]; static int beagle_twl_gpio_setup(struct device *dev, @@ -128,6 +148,10 @@ static int beagle_twl_gpio_setup(struct device *dev, mmc[0].gpio_cd = gpio + 0; twl4030_mmc_init(mmc); + /* link regulators to MMC adapters */ + beagle_vmmc1_supply.dev = mmc[0].dev; + beagle_vsim_supply.dev = mmc[0].dev; + /* REVISIT: need ehci-omap hooks for external VBUS * power switch and overcurrent detect */ @@ -156,12 +180,85 @@ static struct twl4030_gpio_platform_data beagle_gpio_data = { .setup = beagle_twl_gpio_setup, }; +static struct regulator_consumer_supply beagle_vdac_supply = { + .supply = "vdac", + .dev = &omap3_beagle_lcd_device.dev, +}; + +static struct regulator_consumer_supply beagle_vdvi_supply = { + .supply = "vdvi", + .dev = &omap3_beagle_lcd_device.dev, +}; + +/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ +static struct regulator_init_data beagle_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &beagle_vmmc1_supply, +}; + +/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */ +static struct regulator_init_data beagle_vsim = { + .constraints = { + .min_uV = 1800000, + .max_uV = 3000000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &beagle_vsim_supply, +}; + +/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */ +static struct regulator_init_data beagle_vdac = { + .constraints = { + .min_uV = 1800000, + .max_uV = 1800000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &beagle_vdac_supply, +}; + +/* VPLL2 for digital video outputs */ +static struct regulator_init_data beagle_vpll2 = { + .constraints = { + .name = "VDVI", + .min_uV = 1800000, + .max_uV = 1800000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &beagle_vdvi_supply, +}; + static struct twl4030_platform_data beagle_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, /* platform_data for children goes here */ .gpio = &beagle_gpio_data, + .vmmc1 = &beagle_vmmc1, + .vsim = &beagle_vsim, + .vdac = &beagle_vdac, + .vpll2 = &beagle_vpll2, }; static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = { @@ -185,7 +282,7 @@ static int __init omap3_beagle_i2c_init(void) static void __init omap3_beagle_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params); omap_init_irq(); #ifdef CONFIG_OMAP_32K_TIMER omap2_gp_clockevent_set_gptimer(12); @@ -193,15 +290,6 @@ static void __init omap3_beagle_init_irq(void) omap_gpio_init(); } -static struct platform_device omap3_beagle_lcd_device = { - .name = "omap3beagle_lcd", - .id = -1, -}; - -static struct omap_lcd_config omap3_beagle_lcd_config __initdata = { - .ctrl_name = "internal", -}; - static struct gpio_led gpio_leds[] = { { .name = "beagleboard::usr0", diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c new file mode 100644 index 00000000000..d3cc145814d --- /dev/null +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -0,0 +1,329 @@ +/* + * linux/arch/arm/mach-omap2/board-omap3evm.c + * + * Copyright (C) 2008 Texas Instruments + * + * Modified from mach-omap2/board-3430sdp.c + * + * Initial code: Syed Mohammed Khasim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/clk.h> +#include <linux/gpio.h> +#include <linux/input.h> +#include <linux/leds.h> + +#include <linux/spi/spi.h> +#include <linux/spi/ads7846.h> +#include <linux/i2c/twl4030.h> + +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/board.h> +#include <mach/mux.h> +#include <mach/usb.h> +#include <mach/common.h> +#include <mach/mcspi.h> +#include <mach/keypad.h> + +#include "sdram-micron-mt46h32m32lf-6.h" +#include "mmc-twl4030.h" + +#define OMAP3_EVM_TS_GPIO 175 + +#define OMAP3EVM_ETHR_START 0x2c000000 +#define OMAP3EVM_ETHR_SIZE 1024 +#define OMAP3EVM_ETHR_GPIO_IRQ 176 +#define OMAP3EVM_SMC911X_CS 5 + +static struct resource omap3evm_smc911x_resources[] = { + [0] = { + .start = OMAP3EVM_ETHR_START, + .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1), + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), + .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device omap3evm_smc911x_device = { + .name = "smc911x", + .id = -1, + .num_resources = ARRAY_SIZE(omap3evm_smc911x_resources), + .resource = &omap3evm_smc911x_resources[0], +}; + +static inline void __init omap3evm_init_smc911x(void) +{ + int eth_cs; + struct clk *l3ck; + unsigned int rate; + + eth_cs = OMAP3EVM_SMC911X_CS; + + l3ck = clk_get(NULL, "l3_ck"); + if (IS_ERR(l3ck)) + rate = 100000000; + else + rate = clk_get_rate(l3ck); + + if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) { + printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n", + OMAP3EVM_ETHR_GPIO_IRQ); + return; + } + + gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ); +} + +static struct omap_uart_config omap3_evm_uart_config __initdata = { + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), +}; + +static struct twl4030_hsmmc_info mmc[] = { + { + .mmc = 1, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = 63, + }, + {} /* Terminator */ +}; + +static struct gpio_led gpio_leds[] = { + { + .name = "omap3evm::ledb", + /* normally not visible (board underside) */ + .default_trigger = "default-on", + .gpio = -EINVAL, /* gets replaced */ + .active_low = true, + }, +}; + +static struct gpio_led_platform_data gpio_led_info = { + .leds = gpio_leds, + .num_leds = ARRAY_SIZE(gpio_leds), +}; + +static struct platform_device leds_gpio = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &gpio_led_info, + }, +}; + + +static int omap3evm_twl_gpio_setup(struct device *dev, + unsigned gpio, unsigned ngpio) +{ + /* gpio + 0 is "mmc0_cd" (input/IRQ) */ + omap_cfg_reg(L8_34XX_GPIO63); + mmc[0].gpio_cd = gpio + 0; + twl4030_mmc_init(mmc); + + /* + * Most GPIOs are for USB OTG. Some are mostly sent to + * the P2 connector; notably LEDA for the LCD backlight. + */ + + /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */ + gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; + + platform_device_register(&leds_gpio); + + return 0; +} + +static struct twl4030_gpio_platform_data omap3evm_gpio_data = { + .gpio_base = OMAP_MAX_GPIO_LINES, + .irq_base = TWL4030_GPIO_IRQ_BASE, + .irq_end = TWL4030_GPIO_IRQ_END, + .use_leds = true, + .setup = omap3evm_twl_gpio_setup, +}; + +static struct twl4030_usb_data omap3evm_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + +static int omap3evm_keymap[] = { + KEY(0, 0, KEY_LEFT), + KEY(0, 1, KEY_RIGHT), + KEY(0, 2, KEY_A), + KEY(0, 3, KEY_B), + KEY(1, 0, KEY_DOWN), + KEY(1, 1, KEY_UP), + KEY(1, 2, KEY_E), + KEY(1, 3, KEY_F), + KEY(2, 0, KEY_ENTER), + KEY(2, 1, KEY_I), + KEY(2, 2, KEY_J), + KEY(2, 3, KEY_K), + KEY(3, 0, KEY_M), + KEY(3, 1, KEY_N), + KEY(3, 2, KEY_O), + KEY(3, 3, KEY_P) +}; + +static struct twl4030_keypad_data omap3evm_kp_data = { + .rows = 4, + .cols = 4, + .keymap = omap3evm_keymap, + .keymapsize = ARRAY_SIZE(omap3evm_keymap), + .rep = 1, +}; + +static struct twl4030_madc_platform_data omap3evm_madc_data = { + .irq_line = 1, +}; + +static struct twl4030_platform_data omap3evm_twldata = { + .irq_base = TWL4030_IRQ_BASE, + .irq_end = TWL4030_IRQ_END, + + /* platform_data for children goes here */ + .keypad = &omap3evm_kp_data, + .madc = &omap3evm_madc_data, + .usb = &omap3evm_usb_data, + .gpio = &omap3evm_gpio_data, +}; + +static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("twl4030", 0x48), + .flags = I2C_CLIENT_WAKE, + .irq = INT_34XX_SYS_NIRQ, + .platform_data = &omap3evm_twldata, + }, +}; + +static int __init omap3_evm_i2c_init(void) +{ + omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo, + ARRAY_SIZE(omap3evm_i2c_boardinfo)); + omap_register_i2c_bus(2, 400, NULL, 0); + omap_register_i2c_bus(3, 400, NULL, 0); + return 0; +} + +static struct platform_device omap3_evm_lcd_device = { + .name = "omap3evm_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap3_evm_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static void ads7846_dev_init(void) +{ + if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0) + printk(KERN_ERR "can't get ads7846 pen down GPIO\n"); + + gpio_direction_input(OMAP3_EVM_TS_GPIO); + + omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1); + omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa); +} + +static int ads7846_get_pendown_state(void) +{ + return !gpio_get_value(OMAP3_EVM_TS_GPIO); +} + +struct ads7846_platform_data ads7846_config = { + .x_max = 0x0fff, + .y_max = 0x0fff, + .x_plate_ohms = 180, + .pressure_max = 255, + .debounce_max = 10, + .debounce_tol = 3, + .debounce_rep = 1, + .get_pendown_state = ads7846_get_pendown_state, + .keep_vref_on = 1, + .settle_delay_usecs = 150, +}; + +static struct omap2_mcspi_device_config ads7846_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +struct spi_board_info omap3evm_spi_board_info[] = { + [0] = { + .modalias = "ads7846", + .bus_num = 1, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &ads7846_mcspi_config, + .irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO), + .platform_data = &ads7846_config, + }, +}; + +static void __init omap3_evm_init_irq(void) +{ + omap2_init_common_hw(mt46h32m32lf6_sdrc_params); + omap_init_irq(); + omap_gpio_init(); + omap3evm_init_smc911x(); +} + +static struct omap_board_config_kernel omap3_evm_config[] __initdata = { + { OMAP_TAG_UART, &omap3_evm_uart_config }, + { OMAP_TAG_LCD, &omap3_evm_lcd_config }, +}; + +static struct platform_device *omap3_evm_devices[] __initdata = { + &omap3_evm_lcd_device, + &omap3evm_smc911x_device, +}; + +static void __init omap3_evm_init(void) +{ + omap3_evm_i2c_init(); + + platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices)); + omap_board_config = omap3_evm_config; + omap_board_config_size = ARRAY_SIZE(omap3_evm_config); + + spi_register_board_info(omap3evm_spi_board_info, + ARRAY_SIZE(omap3evm_spi_board_info)); + + omap_serial_init(); + usb_musb_init(); + ads7846_dev_init(); +} + +static void __init omap3_evm_map_io(void) +{ + omap2_set_globals_343x(); + omap2_map_common_io(); +} + +MACHINE_START(OMAP3EVM, "OMAP3 EVM") + /* Maintainer: Syed Mohammed Khasim - Texas Instruments */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap3_evm_map_io, + .init_irq = omap3_evm_init_irq, + .init_machine = omap3_evm_init, + .timer = &omap_timer, +MACHINE_END diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 402f09c6cf1..e32aa23ce96 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -23,7 +23,11 @@ #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> +#include <linux/regulator/machine.h> #include <linux/i2c/twl4030.h> +#include <linux/leds.h> +#include <linux/input.h> +#include <linux/gpio_keys.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -35,11 +39,154 @@ #include <mach/hardware.h> #include <mach/mcspi.h> #include <mach/usb.h> +#include <mach/keypad.h> +#include "sdram-micron-mt46h32m32lf-6.h" #include "mmc-twl4030.h" #define OMAP3_PANDORA_TS_GPIO 94 +/* hardware debounce: (value + 1) * 31us */ +#define GPIO_DEBOUNCE_TIME 127 + +static struct gpio_led pandora_gpio_leds[] = { + { + .name = "pandora::sd1", + .default_trigger = "mmc0", + .gpio = 128, + }, { + .name = "pandora::sd2", + .default_trigger = "mmc1", + .gpio = 129, + }, { + .name = "pandora::bluetooth", + .gpio = 158, + }, { + .name = "pandora::wifi", + .gpio = 159, + }, +}; + +static struct gpio_led_platform_data pandora_gpio_led_data = { + .leds = pandora_gpio_leds, + .num_leds = ARRAY_SIZE(pandora_gpio_leds), +}; + +static struct platform_device pandora_leds_gpio = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &pandora_gpio_led_data, + }, +}; + +#define GPIO_BUTTON(gpio_num, ev_type, ev_code, act_low, descr) \ +{ \ + .gpio = gpio_num, \ + .type = ev_type, \ + .code = ev_code, \ + .active_low = act_low, \ + .desc = "btn " descr, \ +} + +#define GPIO_BUTTON_LOW(gpio_num, event_code, description) \ + GPIO_BUTTON(gpio_num, EV_KEY, event_code, 1, description) + +static struct gpio_keys_button pandora_gpio_keys[] = { + GPIO_BUTTON_LOW(110, KEY_UP, "up"), + GPIO_BUTTON_LOW(103, KEY_DOWN, "down"), + GPIO_BUTTON_LOW(96, KEY_LEFT, "left"), + GPIO_BUTTON_LOW(98, KEY_RIGHT, "right"), + GPIO_BUTTON_LOW(111, BTN_A, "a"), + GPIO_BUTTON_LOW(106, BTN_B, "b"), + GPIO_BUTTON_LOW(109, BTN_X, "x"), + GPIO_BUTTON_LOW(101, BTN_Y, "y"), + GPIO_BUTTON_LOW(102, BTN_TL, "l"), + GPIO_BUTTON_LOW(97, BTN_TL2, "l2"), + GPIO_BUTTON_LOW(105, BTN_TR, "r"), + GPIO_BUTTON_LOW(107, BTN_TR2, "r2"), + GPIO_BUTTON_LOW(104, KEY_LEFTCTRL, "ctrl"), + GPIO_BUTTON_LOW(99, KEY_MENU, "menu"), + GPIO_BUTTON_LOW(176, KEY_COFFEE, "hold"), + GPIO_BUTTON(100, EV_KEY, KEY_LEFTALT, 0, "alt"), + GPIO_BUTTON(108, EV_SW, SW_LID, 1, "lid"), +}; + +static struct gpio_keys_platform_data pandora_gpio_key_info = { + .buttons = pandora_gpio_keys, + .nbuttons = ARRAY_SIZE(pandora_gpio_keys), +}; + +static struct platform_device pandora_keys_gpio = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &pandora_gpio_key_info, + }, +}; + +static void __init pandora_keys_gpio_init(void) +{ + /* set debounce time for GPIO banks 4 and 6 */ + omap_set_gpio_debounce_time(32 * 3, GPIO_DEBOUNCE_TIME); + omap_set_gpio_debounce_time(32 * 5, GPIO_DEBOUNCE_TIME); +} + +static int pandora_keypad_map[] = { + /* col, row, code */ + KEY(0, 0, KEY_9), + KEY(0, 1, KEY_0), + KEY(0, 2, KEY_BACKSPACE), + KEY(0, 3, KEY_O), + KEY(0, 4, KEY_P), + KEY(0, 5, KEY_K), + KEY(0, 6, KEY_L), + KEY(0, 7, KEY_ENTER), + KEY(1, 0, KEY_8), + KEY(1, 1, KEY_7), + KEY(1, 2, KEY_6), + KEY(1, 3, KEY_5), + KEY(1, 4, KEY_4), + KEY(1, 5, KEY_3), + KEY(1, 6, KEY_2), + KEY(1, 7, KEY_1), + KEY(2, 0, KEY_I), + KEY(2, 1, KEY_U), + KEY(2, 2, KEY_Y), + KEY(2, 3, KEY_T), + KEY(2, 4, KEY_R), + KEY(2, 5, KEY_E), + KEY(2, 6, KEY_W), + KEY(2, 7, KEY_Q), + KEY(3, 0, KEY_J), + KEY(3, 1, KEY_H), + KEY(3, 2, KEY_G), + KEY(3, 3, KEY_F), + KEY(3, 4, KEY_D), + KEY(3, 5, KEY_S), + KEY(3, 6, KEY_A), + KEY(3, 7, KEY_LEFTSHIFT), + KEY(4, 0, KEY_N), + KEY(4, 1, KEY_B), + KEY(4, 2, KEY_V), + KEY(4, 3, KEY_C), + KEY(4, 4, KEY_X), + KEY(4, 5, KEY_Z), + KEY(4, 6, KEY_DOT), + KEY(4, 7, KEY_COMMA), + KEY(5, 0, KEY_M), + KEY(5, 1, KEY_SPACE), + KEY(5, 2, KEY_FN), +}; + +static struct twl4030_keypad_data pandora_kp_data = { + .rows = 8, + .cols = 6, + .keymap = pandora_keypad_map, + .keymapsize = ARRAY_SIZE(pandora_keypad_map), + .rep = 1, +}; + static struct twl4030_hsmmc_info omap3pandora_mmc[] = { { .mmc = 1, @@ -69,6 +216,14 @@ static struct omap_uart_config omap3pandora_uart_config __initdata = { .enabled_uarts = (1 << 2), /* UART3 */ }; +static struct regulator_consumer_supply pandora_vmmc1_supply = { + .supply = "vmmc", +}; + +static struct regulator_consumer_supply pandora_vmmc2_supply = { + .supply = "vmmc", +}; + static int omap3pandora_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { @@ -77,6 +232,10 @@ static int omap3pandora_twl_gpio_setup(struct device *dev, omap3pandora_mmc[1].gpio_cd = gpio + 1; twl4030_mmc_init(omap3pandora_mmc); + /* link regulators to MMC adapters */ + pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev; + pandora_vmmc2_supply.dev = omap3pandora_mmc[1].dev; + return 0; } @@ -87,6 +246,36 @@ static struct twl4030_gpio_platform_data omap3pandora_gpio_data = { .setup = omap3pandora_twl_gpio_setup, }; +/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ +static struct regulator_init_data pandora_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &pandora_vmmc1_supply, +}; + +/* VMMC2 for MMC2 pins CMD, CLK, DAT0..DAT3 (max 100 mA) */ +static struct regulator_init_data pandora_vmmc2 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &pandora_vmmc2_supply, +}; + static struct twl4030_usb_data omap3pandora_usb_data = { .usb_mode = T2_USB_MODE_ULPI, }; @@ -96,6 +285,9 @@ static struct twl4030_platform_data omap3pandora_twldata = { .irq_end = TWL4030_IRQ_END, .gpio = &omap3pandora_gpio_data, .usb = &omap3pandora_usb_data, + .vmmc1 = &pandora_vmmc1, + .vmmc2 = &pandora_vmmc2, + .keypad = &pandora_kp_data, }; static struct i2c_board_info __initdata omap3pandora_i2c_boardinfo[] = { @@ -118,7 +310,7 @@ static int __init omap3pandora_i2c_init(void) static void __init omap3pandora_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } @@ -188,6 +380,8 @@ static struct omap_board_config_kernel omap3pandora_config[] __initdata = { static struct platform_device *omap3pandora_devices[] __initdata = { &omap3pandora_lcd_device, + &pandora_leds_gpio, + &pandora_keys_gpio, }; static void __init omap3pandora_init(void) @@ -201,6 +395,7 @@ static void __init omap3pandora_init(void) spi_register_board_info(omap3pandora_spi_board_info, ARRAY_SIZE(omap3pandora_spi_board_info)); omap3pandora_ads7846_init(); + pandora_keys_gpio_init(); usb_musb_init(); } diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index b1f23bea863..dff5528fbfb 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -27,6 +27,7 @@ #include <linux/kernel.h> #include <linux/platform_device.h> #include <linux/i2c/twl4030.h> +#include <linux/regulator/machine.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -45,6 +46,7 @@ #include <mach/nand.h> #include <mach/usb.h> +#include "sdram-micron-mt46h32m32lf-6.h" #include "mmc-twl4030.h" #define OVERO_GPIO_BT_XGATE 15 @@ -271,21 +273,76 @@ static struct omap_uart_config overo_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; +static struct twl4030_hsmmc_info mmc[] = { + { + .mmc = 1, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + }, + { + .mmc = 2, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + .transceiver = true, + .ocr_mask = 0x00100000, /* 3.3V */ + }, + {} /* Terminator */ +}; + +static struct regulator_consumer_supply overo_vmmc1_supply = { + .supply = "vmmc", +}; + +static int overo_twl_gpio_setup(struct device *dev, + unsigned gpio, unsigned ngpio) +{ + twl4030_mmc_init(mmc); + + overo_vmmc1_supply.dev = mmc[0].dev; + + return 0; +} + static struct twl4030_gpio_platform_data overo_gpio_data = { .gpio_base = OMAP_MAX_GPIO_LINES, .irq_base = TWL4030_GPIO_IRQ_BASE, .irq_end = TWL4030_GPIO_IRQ_END, + .setup = overo_twl_gpio_setup, +}; + +static struct twl4030_usb_data overo_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + +static struct regulator_init_data overo_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &overo_vmmc1_supply, }; +/* mmc2 (WLAN) and Bluetooth don't use twl4030 regulators */ + static struct twl4030_platform_data overo_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, .gpio = &overo_gpio_data, + .usb = &overo_usb_data, + .vmmc1 = &overo_vmmc1, }; static struct i2c_board_info __initdata overo_i2c_boardinfo[] = { { - I2C_BOARD_INFO("twl4030", 0x48), + I2C_BOARD_INFO("tps65950", 0x48), .flags = I2C_CLIENT_WAKE, .irq = INT_34XX_SYS_NIRQ, .platform_data = &overo_twldata, @@ -303,7 +360,7 @@ static int __init overo_i2c_init(void) static void __init overo_init_irq(void) { - omap2_init_common_hw(NULL); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params); omap_init_irq(); omap_gpio_init(); } @@ -326,23 +383,6 @@ static struct platform_device *overo_devices[] __initdata = { &overo_lcd_device, }; -static struct twl4030_hsmmc_info mmc[] __initdata = { - { - .mmc = 1, - .wires = 4, - .gpio_cd = -EINVAL, - .gpio_wp = -EINVAL, - }, - { - .mmc = 2, - .wires = 4, - .gpio_cd = -EINVAL, - .gpio_wp = -EINVAL, - .transceiver = true, - }, - {} /* Terminator */ -}; - static void __init overo_init(void) { overo_i2c_init(); @@ -350,7 +390,6 @@ static void __init overo_init(void) omap_board_config = overo_config; omap_board_config_size = ARRAY_SIZE(overo_config); omap_serial_init(); - twl4030_mmc_init(mmc); overo_flash_init(); usb_musb_init(); overo_ads7846_init(); diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index a7381729645..da93b86234e 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -27,30 +27,13 @@ #include <mach/dma.h> #include <mach/gpmc.h> #include <mach/keypad.h> +#include <mach/onenand.h> +#include <mach/gpmc-smc91x.h> #include "mmc-twl4030.h" - -#define SMC91X_CS 1 -#define SMC91X_GPIO_IRQ 54 -#define SMC91X_GPIO_RESET 164 -#define SMC91X_GPIO_PWRDWN 86 - -static struct resource rx51_smc91x_resources[] = { - [0] = { - .flags = IORESOURCE_MEM, - }, - [1] = { - .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, - }, -}; - -static struct platform_device rx51_smc91x_device = { - .name = "smc91x", - .id = -1, - .num_resources = ARRAY_SIZE(rx51_smc91x_resources), - .resource = rx51_smc91x_resources, -}; +#define SYSTEM_REV_B_USES_VAUX3 0x1699 +#define SYSTEM_REV_S_USES_VAUX3 0x8 static int rx51_keymap[] = { KEY(0, 0, KEY_Q), @@ -107,98 +90,6 @@ static struct twl4030_keypad_data rx51_kp_data = { .rep = 1, }; -static struct platform_device *rx51_peripherals_devices[] = { - &rx51_smc91x_device, -}; - -/* - * Timings are taken from smsc-lan91c96-ms.pdf - */ -static int smc91x_init_gpmc(int cs) -{ - struct gpmc_timings t; - const int t2_r = 45; /* t2 in Figure 12.10 */ - const int t2_w = 30; /* t2 in Figure 12.11 */ - const int t3 = 15; /* t3 in Figure 12.10 */ - const int t5_r = 0; /* t5 in Figure 12.10 */ - const int t6_r = 45; /* t6 in Figure 12.10 */ - const int t6_w = 0; /* t6 in Figure 12.11 */ - const int t7_w = 15; /* t7 in Figure 12.11 */ - const int t15 = 12; /* t15 in Figure 12.2 */ - const int t20 = 185; /* t20 in Figure 12.2 */ - - memset(&t, 0, sizeof(t)); - - t.cs_on = t15; - t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */ - t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */ - t.adv_on = t3; /* Figure 12.10 */ - t.adv_rd_off = t3 + t2_r; /* Figure 12.10 */ - t.adv_wr_off = t3 + t2_w; /* Figure 12.11 */ - t.oe_off = t3 + t2_r + t5_r; /* Figure 12.10 */ - t.oe_on = t.oe_off - t6_r; /* Figure 12.10 */ - t.we_off = t3 + t2_w + t6_w; /* Figure 12.11 */ - t.we_on = t.we_off - t7_w; /* Figure 12.11 */ - t.rd_cycle = t20; /* Figure 12.2 */ - t.wr_cycle = t20; /* Figure 12.4 */ - t.access = t3 + t2_r + t5_r; /* Figure 12.10 */ - t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */ - - gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16); - - return gpmc_cs_set_timings(cs, &t); -} - -static void __init rx51_init_smc91x(void) -{ - unsigned long cs_mem_base; - int ret; - - omap_cfg_reg(U8_34XX_GPIO54_DOWN); - omap_cfg_reg(G25_34XX_GPIO86_OUT); - omap_cfg_reg(H19_34XX_GPIO164_OUT); - - if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) { - printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); - return; - } - - rx51_smc91x_resources[0].start = cs_mem_base + 0x300; - rx51_smc91x_resources[0].end = cs_mem_base + 0x30f; - - smc91x_init_gpmc(SMC91X_CS); - - if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0) - goto free1; - - gpio_direction_input(SMC91X_GPIO_IRQ); - rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ); - - ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown"); - if (ret) - goto free2; - gpio_direction_output(SMC91X_GPIO_PWRDWN, 0); - - ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset"); - if (ret) - goto free3; - gpio_direction_output(SMC91X_GPIO_RESET, 0); - gpio_set_value(SMC91X_GPIO_RESET, 1); - msleep(100); - gpio_set_value(SMC91X_GPIO_RESET, 0); - - return; - -free3: - gpio_free(SMC91X_GPIO_PWRDWN); -free2: - gpio_free(SMC91X_GPIO_IRQ); -free1: - gpmc_cs_free(SMC91X_CS); - - printk(KERN_ERR "Could not initialize smc91x\n"); -} - static struct twl4030_madc_platform_data rx51_madc_data = { .irq_line = 1, }; @@ -259,7 +150,7 @@ static struct regulator_init_data rx51_vaux2 = { }; /* VAUX3 - adds more power to VIO_18 rail */ -static struct regulator_init_data rx51_vaux3 = { +static struct regulator_init_data rx51_vaux3_cam = { .constraints = { .name = "VCAM_DIG_18", .min_uV = 1800000, @@ -272,6 +163,22 @@ static struct regulator_init_data rx51_vaux3 = { }, }; +static struct regulator_init_data rx51_vaux3_mmc = { + .constraints = { + .name = "VMMC2_30", + .min_uV = 2800000, + .max_uV = 3000000, + .apply_uV = true, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &rx51_vmmc2_supply, +}; + static struct regulator_init_data rx51_vaux4 = { .constraints = { .name = "VCAM_ANA_28", @@ -382,10 +289,8 @@ static struct twl4030_platform_data rx51_twldata = { .vaux1 = &rx51_vaux1, .vaux2 = &rx51_vaux2, - .vaux3 = &rx51_vaux3, .vaux4 = &rx51_vaux4, .vmmc1 = &rx51_vmmc1, - .vmmc2 = &rx51_vmmc2, .vsim = &rx51_vsim, .vdac = &rx51_vdac, }; @@ -401,6 +306,13 @@ static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = { static int __init rx51_i2c_init(void) { + if ((system_rev >= SYSTEM_REV_S_USES_VAUX3 && system_rev < 0x100) || + system_rev >= SYSTEM_REV_B_USES_VAUX3) + rx51_twldata.vaux3 = &rx51_vaux3_mmc; + else { + rx51_twldata.vaux3 = &rx51_vaux3_cam; + rx51_twldata.vmmc2 = &rx51_vmmc2; + } omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1, ARRAY_SIZE(rx51_peripherals_i2c_board_info_1)); omap_register_i2c_bus(2, 100, NULL, 0); @@ -408,12 +320,94 @@ static int __init rx51_i2c_init(void) return 0; } +#if defined(CONFIG_MTD_ONENAND_OMAP2) || \ + defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) + +static struct mtd_partition onenand_partitions[] = { + { + .name = "bootloader", + .offset = 0, + .size = 0x20000, + .mask_flags = MTD_WRITEABLE, /* Force read-only */ + }, + { + .name = "config", + .offset = MTDPART_OFS_APPEND, + .size = 0x60000, + }, + { + .name = "log", + .offset = MTDPART_OFS_APPEND, + .size = 0x40000, + }, + { + .name = "kernel", + .offset = MTDPART_OFS_APPEND, + .size = 0x200000, + }, + { + .name = "initfs", + .offset = MTDPART_OFS_APPEND, + .size = 0x200000, + }, + { + .name = "rootfs", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct omap_onenand_platform_data board_onenand_data = { + .cs = 0, + .gpio_irq = 65, + .parts = onenand_partitions, + .nr_parts = ARRAY_SIZE(onenand_partitions), +}; + +static void __init board_onenand_init(void) +{ + gpmc_onenand_init(&board_onenand_data); +} + +#else + +static inline void board_onenand_init(void) +{ +} + +#endif + +#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) + +static struct omap_smc91x_platform_data board_smc91x_data = { + .cs = 1, + .gpio_irq = 54, + .gpio_pwrdwn = 86, + .gpio_reset = 164, + .flags = GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_HIGHLEVEL, +}; + +static void __init board_smc91x_init(void) +{ + omap_cfg_reg(U8_34XX_GPIO54_DOWN); + omap_cfg_reg(G25_34XX_GPIO86_OUT); + omap_cfg_reg(H19_34XX_GPIO164_OUT); + + gpmc_smc91x_init(&board_smc91x_data); +} + +#else + +static inline void board_smc91x_init(void) +{ +} + +#endif void __init rx51_peripherals_init(void) { - platform_add_devices(rx51_peripherals_devices, - ARRAY_SIZE(rx51_peripherals_devices)); rx51_i2c_init(); - rx51_init_smc91x(); + board_onenand_init(); + board_smc91x_init(); } diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c new file mode 100644 index 00000000000..bac5c4321ff --- /dev/null +++ b/arch/arm/mach-omap2/board-zoom-debugboard.c @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2009 Texas Instruments Inc. + * Mikkel Christensen <mlc@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/gpio.h> +#include <linux/serial_8250.h> +#include <linux/smsc911x.h> + +#include <mach/gpmc.h> + +#define ZOOM2_SMSC911X_CS 7 +#define ZOOM2_SMSC911X_GPIO 158 +#define ZOOM2_QUADUART_CS 3 +#define ZOOM2_QUADUART_GPIO 102 +#define QUART_CLK 1843200 +#define DEBUG_BASE 0x08000000 +#define ZOOM2_ETHR_START DEBUG_BASE + +static struct resource zoom2_smsc911x_resources[] = { + [0] = { + .start = ZOOM2_ETHR_START, + .end = ZOOM2_ETHR_START + SZ_4K, + .flags = IORESOURCE_MEM, + }, + [1] = { + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, + }, +}; + +static struct smsc911x_platform_config zoom2_smsc911x_config = { + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, + .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, + .flags = SMSC911X_USE_32BIT, + .phy_interface = PHY_INTERFACE_MODE_MII, +}; + +static struct platform_device zoom2_smsc911x_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(zoom2_smsc911x_resources), + .resource = zoom2_smsc911x_resources, + .dev = { + .platform_data = &zoom2_smsc911x_config, + }, +}; + +static inline void __init zoom2_init_smsc911x(void) +{ + int eth_cs; + unsigned long cs_mem_base; + int eth_gpio = 0; + + eth_cs = ZOOM2_SMSC911X_CS; + + if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n"); + return; + } + + zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0; + zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff; + + eth_gpio = ZOOM2_SMSC911X_GPIO; + + zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio); + + if (gpio_request(eth_gpio, "smsc911x irq") < 0) { + printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n", + eth_gpio); + return; + } + gpio_direction_input(eth_gpio); +} + +static struct plat_serial8250_port serial_platform_data[] = { + { + .mapbase = 0x10000000, + .irq = OMAP_GPIO_IRQ(102), + .flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ, + .iotype = UPIO_MEM, + .regshift = 1, + .uartclk = QUART_CLK, + }, { + .flags = 0 + } +}; + +static struct platform_device zoom2_debugboard_serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM1, + .dev = { + .platform_data = serial_platform_data, + }, +}; + +static inline void __init zoom2_init_quaduart(void) +{ + int quart_cs; + unsigned long cs_mem_base; + int quart_gpio = 0; + + quart_cs = ZOOM2_QUADUART_CS; + + if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem" + "for Quad UART(TL16CP754C)\n"); + return; + } + + quart_gpio = ZOOM2_QUADUART_GPIO; + + if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) { + printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n", + quart_gpio); + return; + } + gpio_direction_input(quart_gpio); +} + +static inline int omap_zoom2_debugboard_detect(void) +{ + int debug_board_detect = 0; + + debug_board_detect = ZOOM2_SMSC911X_GPIO; + + if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) { + printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug" + "board detect\n", debug_board_detect); + return 0; + } + gpio_direction_input(debug_board_detect); + + if (!gpio_get_value(debug_board_detect)) { + gpio_free(debug_board_detect); + return 0; + } + return 1; +} + +static struct platform_device *zoom2_devices[] __initdata = { + &zoom2_smsc911x_device, + &zoom2_debugboard_serial_device, +}; + +int __init omap_zoom2_debugboard_init(void) +{ + if (!omap_zoom2_debugboard_detect()) + return 0; + + zoom2_init_smsc911x(); + zoom2_init_quaduart(); + return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices)); +} diff --git a/arch/arm/mach-omap2/board-zoom2.c b/arch/arm/mach-omap2/board-zoom2.c new file mode 100644 index 00000000000..bcc0f7632de --- /dev/null +++ b/arch/arm/mach-omap2/board-zoom2.c @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2009 Texas Instruments Inc. + * Mikkel Christensen <mlc@ti.com> + * + * Modified from mach-omap2/board-ldp.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/i2c/twl4030.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include <mach/common.h> +#include <mach/usb.h> + +#include "mmc-twl4030.h" + +static void __init omap_zoom2_init_irq(void) +{ + omap2_init_common_hw(NULL); + omap_init_irq(); + omap_gpio_init(); +} + +static struct omap_uart_config zoom2_uart_config __initdata = { + .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), +}; + +static struct omap_board_config_kernel zoom2_config[] __initdata = { + { OMAP_TAG_UART, &zoom2_uart_config }, +}; + +static struct twl4030_gpio_platform_data zoom2_gpio_data = { + .gpio_base = OMAP_MAX_GPIO_LINES, + .irq_base = TWL4030_GPIO_IRQ_BASE, + .irq_end = TWL4030_GPIO_IRQ_END, +}; + +static struct twl4030_platform_data zoom2_twldata = { + .irq_base = TWL4030_IRQ_BASE, + .irq_end = TWL4030_IRQ_END, + + /* platform_data for children goes here */ + .gpio = &zoom2_gpio_data, +}; + +static struct i2c_board_info __initdata zoom2_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("twl4030", 0x48), + .flags = I2C_CLIENT_WAKE, + .irq = INT_34XX_SYS_NIRQ, + .platform_data = &zoom2_twldata, + }, +}; + +static int __init omap_i2c_init(void) +{ + omap_register_i2c_bus(1, 2600, zoom2_i2c_boardinfo, + ARRAY_SIZE(zoom2_i2c_boardinfo)); + omap_register_i2c_bus(2, 400, NULL, 0); + omap_register_i2c_bus(3, 400, NULL, 0); + return 0; +} + +static struct twl4030_hsmmc_info mmc[] __initdata = { + { + .mmc = 1, + .wires = 4, + .gpio_cd = -EINVAL, + .gpio_wp = -EINVAL, + }, + {} /* Terminator */ +}; + +extern int __init omap_zoom2_debugboard_init(void); + +static void __init omap_zoom2_init(void) +{ + omap_i2c_init(); + omap_board_config = zoom2_config; + omap_board_config_size = ARRAY_SIZE(zoom2_config); + omap_serial_init(); + omap_zoom2_debugboard_init(); + twl4030_mmc_init(mmc); + usb_musb_init(); +} + +static void __init omap_zoom2_map_io(void) +{ + omap2_set_globals_343x(); + omap2_map_common_io(); +} + +MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board") + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap_zoom2_map_io, + .init_irq = omap_zoom2_init_irq, + .init_machine = omap_zoom2_init, + .timer = &omap_timer, +MACHINE_END diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index 4247a153441..ba528f85749 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -91,9 +91,9 @@ static void _omap2xxx_clk_commit(struct clk *clk) return; prm_write_mod_reg(OMAP24XX_VALID_CONFIG, OMAP24XX_GR_MOD, - OMAP24XX_PRCM_CLKCFG_CTRL_OFFSET); + OMAP2_PRCM_CLKCFG_CTRL_OFFSET); /* OCP barrier */ - prm_read_mod_reg(OMAP24XX_GR_MOD, OMAP24XX_PRCM_CLKCFG_CTRL_OFFSET); + prm_read_mod_reg(OMAP24XX_GR_MOD, OMAP2_PRCM_CLKCFG_CTRL_OFFSET); } /* @@ -547,8 +547,8 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, const struct clksel_rate *clkr; u32 last_div = 0; - printk(KERN_INFO "clock: clksel_round_rate_div: %s target_rate %ld\n", - clk->name, target_rate); + pr_debug("clock: clksel_round_rate_div: %s target_rate %ld\n", + clk->name, target_rate); *new_div = 1; @@ -562,7 +562,7 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, /* Sanity check */ if (clkr->div <= last_div) - printk(KERN_ERR "clock: clksel_rate table not sorted " + pr_err("clock: clksel_rate table not sorted " "for clock %s", clk->name); last_div = clkr->div; @@ -574,7 +574,7 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, } if (!clkr->div) { - printk(KERN_ERR "clock: Could not find divisor for target " + pr_err("clock: Could not find divisor for target " "rate %ld for clock %s parent %s\n", target_rate, clk->name, clk->parent->name); return ~0; @@ -582,8 +582,8 @@ u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate, *new_div = clkr->div; - printk(KERN_INFO "clock: new_div = %d, new_rate = %ld\n", *new_div, - (clk->parent->rate / clkr->div)); + pr_debug("clock: new_div = %d, new_rate = %ld\n", *new_div, + (clk->parent->rate / clkr->div)); return (clk->parent->rate / clkr->div); } @@ -1035,7 +1035,7 @@ void omap2_clk_disable_unused(struct clk *clk) if ((regval32 & (1 << clk->enable_bit)) == v) return; - printk(KERN_INFO "Disabling unused clock \"%s\"\n", clk->name); + printk(KERN_DEBUG "Disabling unused clock \"%s\"\n", clk->name); if (cpu_is_omap34xx()) { omap2_clk_enable(clk); omap2_clk_disable(clk); diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c index e4cef333e29..44de0271fc2 100644 --- a/arch/arm/mach-omap2/clock24xx.c +++ b/arch/arm/mach-omap2/clock24xx.c @@ -233,6 +233,8 @@ static struct prcm_config *curr_prcm_set; static struct clk *vclk; static struct clk *sclk; +static void __iomem *prcm_clksrc_ctrl; + /*------------------------------------------------------------------------- * Omap24xx specific clock functions *-------------------------------------------------------------------------*/ @@ -269,10 +271,9 @@ static int omap2_enable_osc_ck(struct clk *clk) { u32 pcc; - pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + pcc = __raw_readl(prcm_clksrc_ctrl); - __raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, - OMAP24XX_PRCM_CLKSRC_CTRL); + __raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl); return 0; } @@ -281,10 +282,9 @@ static void omap2_disable_osc_ck(struct clk *clk) { u32 pcc; - pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + pcc = __raw_readl(prcm_clksrc_ctrl); - __raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, - OMAP24XX_PRCM_CLKSRC_CTRL); + __raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl); } static const struct clkops clkops_oscck = { @@ -654,7 +654,7 @@ static u32 omap2_get_sysclkdiv(void) { u32 div; - div = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL); + div = __raw_readl(prcm_clksrc_ctrl); div &= OMAP_SYSCLKDIV_MASK; div >>= OMAP_SYSCLKDIV_SHIFT; @@ -714,15 +714,18 @@ int __init omap2_clk_init(void) struct omap_clk *c; u32 clkrate; - if (cpu_is_omap242x()) + if (cpu_is_omap242x()) { + prcm_clksrc_ctrl = OMAP2420_PRCM_CLKSRC_CTRL; cpu_mask = RATE_IN_242X; - else if (cpu_is_omap2430()) + } else if (cpu_is_omap2430()) { + prcm_clksrc_ctrl = OMAP2430_PRCM_CLKSRC_CTRL; cpu_mask = RATE_IN_243X; + } clk_init(&omap2_clk_functions); for (c = omap24xx_clks; c < omap24xx_clks + ARRAY_SIZE(omap24xx_clks); c++) - clk_init_one(c->lk.clk); + clk_preinit(c->lk.clk); osc_ck.rate = omap2_osc_clk_recalc(&osc_ck); propagate_rate(&osc_ck); diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h index 88c5acb40fc..458f00cdcbe 100644 --- a/arch/arm/mach-omap2/clock24xx.h +++ b/arch/arm/mach-omap2/clock24xx.h @@ -24,6 +24,17 @@ #include "cm-regbits-24xx.h" #include "sdrc.h" +/* REVISIT: These should be set dynamically for CONFIG_MULTI_OMAP2 */ +#ifdef CONFIG_ARCH_OMAP2420 +#define OMAP_CM_REGADDR OMAP2420_CM_REGADDR +#define OMAP24XX_PRCM_CLKOUT_CTRL OMAP2420_PRCM_CLKOUT_CTRL +#define OMAP24XX_PRCM_CLKEMUL_CTRL OMAP2420_PRCM_CLKEMUL_CTRL +#else +#define OMAP_CM_REGADDR OMAP2430_CM_REGADDR +#define OMAP24XX_PRCM_CLKOUT_CTRL OMAP2430_PRCM_CLKOUT_CTRL +#define OMAP24XX_PRCM_CLKEMUL_CTRL OMAP2430_PRCM_CLKEMUL_CTRL +#endif + static unsigned long omap2_table_mpu_recalc(struct clk *clk); static int omap2_select_table_rate(struct clk *clk, unsigned long rate); static long omap2_round_to_table_rate(struct clk *clk, unsigned long rate); diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c index ba05aa42bd8..9e43fe5209d 100644 --- a/arch/arm/mach-omap2/clock34xx.c +++ b/arch/arm/mach-omap2/clock34xx.c @@ -129,6 +129,9 @@ static struct omap_clk omap34xx_clks[] = { CLK(NULL, "sgx_fck", &sgx_fck, CK_3430ES2), CLK(NULL, "sgx_ick", &sgx_ick, CK_3430ES2), CLK(NULL, "d2d_26m_fck", &d2d_26m_fck, CK_3430ES1), + CLK(NULL, "modem_fck", &modem_fck, CK_343X), + CLK(NULL, "sad2d_ick", &sad2d_ick, CK_343X), + CLK(NULL, "mad2d_ick", &mad2d_ick, CK_343X), CLK(NULL, "gpt10_fck", &gpt10_fck, CK_343X), CLK(NULL, "gpt11_fck", &gpt11_fck, CK_343X), CLK(NULL, "cpefuse_fck", &cpefuse_fck, CK_3430ES2), @@ -281,6 +284,8 @@ static struct omap_clk omap34xx_clks[] = { #define MAX_DPLL_WAIT_TRIES 1000000 +#define MIN_SDRC_DLL_LOCK_FREQ 83000000 + /** * omap3_dpll_recalc - recalculate DPLL rate * @clk: DPLL struct clk @@ -703,6 +708,7 @@ static int omap3_dpll4_set_rate(struct clk *clk, unsigned long rate) static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) { u32 new_div = 0; + u32 unlock_dll = 0; unsigned long validrate, sdrcrate; struct omap_sdrc_params *sp; @@ -729,17 +735,22 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) if (!sp) return -EINVAL; - pr_info("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate, - validrate); - pr_info("clock: SDRC timing params used: %08x %08x %08x\n", - sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); + if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) { + pr_debug("clock: will unlock SDRC DLL\n"); + unlock_dll = 1; + } + + pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", clk->rate, + validrate); + pr_debug("clock: SDRC timing params used: %08x %08x %08x\n", + sp->rfr_ctrl, sp->actim_ctrla, sp->actim_ctrlb); /* REVISIT: SRAM code doesn't support other M2 divisors yet */ WARN_ON(new_div != 1 && new_div != 2); /* REVISIT: Add SDRC_MR changing to this code also */ omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla, - sp->actim_ctrlb, new_div); + sp->actim_ctrlb, new_div, unlock_dll); return 0; } @@ -956,7 +967,7 @@ int __init omap2_clk_init(void) clk_init(&omap2_clk_functions); for (c = omap34xx_clks; c < omap34xx_clks + ARRAY_SIZE(omap34xx_clks); c++) - clk_init_one(c->lk.clk); + clk_preinit(c->lk.clk); for (c = omap34xx_clks; c < omap34xx_clks + ARRAY_SIZE(omap34xx_clks); c++) if (c->cpu & cpu_clkflg) { diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h index 017a30e9aa1..e433aec4efd 100644 --- a/arch/arm/mach-omap2/clock34xx.h +++ b/arch/arm/mach-omap2/clock34xx.h @@ -27,6 +27,8 @@ #include "prm.h" #include "prm-regbits-34xx.h" +#define OMAP_CM_REGADDR OMAP34XX_CM_REGADDR + static unsigned long omap3_dpll_recalc(struct clk *clk); static unsigned long omap3_clkoutx2_recalc(struct clk *clk); static void omap3_dpll_allow_idle(struct clk *clk); @@ -1228,6 +1230,37 @@ static struct clk d2d_26m_fck = { .recalc = &followparent_recalc, }; +static struct clk modem_fck = { + .name = "modem_fck", + .ops = &clkops_omap2_dflt_wait, + .parent = &sys_ck, + .init = &omap2_init_clk_clkdm, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1), + .enable_bit = OMAP3430_EN_MODEM_SHIFT, + .clkdm_name = "d2d_clkdm", + .recalc = &followparent_recalc, +}; + +static struct clk sad2d_ick = { + .name = "sad2d_ick", + .ops = &clkops_omap2_dflt_wait, + .parent = &l3_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN1), + .enable_bit = OMAP3430_EN_SAD2D_SHIFT, + .clkdm_name = "d2d_clkdm", + .recalc = &followparent_recalc, +}; + +static struct clk mad2d_ick = { + .name = "mad2d_ick", + .ops = &clkops_omap2_dflt_wait, + .parent = &l3_ick, + .enable_reg = OMAP_CM_REGADDR(CORE_MOD, CM_ICLKEN3), + .enable_bit = OMAP3430_EN_MAD2D_SHIFT, + .clkdm_name = "d2d_clkdm", + .recalc = &followparent_recalc, +}; + static const struct clksel omap343x_gpt_clksel[] = { { .parent = &omap_32k_fck, .rates = gpt_32k_rates }, { .parent = &sys_ck, .rates = gpt_sys_rates }, @@ -1945,8 +1978,6 @@ static struct clk usb_l4_ick = { .recalc = &omap2_clksel_recalc, }; -/* XXX MDM_INTC_ICK, SAD2D_ICK ?? */ - /* SECURITY_L4_ICK2 based clocks */ static struct clk security_l4_ick2 = { diff --git a/arch/arm/mach-omap2/clockdomains.h b/arch/arm/mach-omap2/clockdomains.h index 281d5da1918..fe319ae4ca0 100644 --- a/arch/arm/mach-omap2/clockdomains.h +++ b/arch/arm/mach-omap2/clockdomains.h @@ -195,7 +195,7 @@ static struct clockdomain sgx_clkdm = { static struct clockdomain d2d_clkdm = { .name = "d2d_clkdm", .pwrdm = { .name = "core_pwrdm" }, - .flags = CLKDM_CAN_HWSUP, + .flags = CLKDM_CAN_HWSUP_SWSUP, .clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK, .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430), }; diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h index 6f3f5a36aae..6923deb98a2 100644 --- a/arch/arm/mach-omap2/cm-regbits-34xx.h +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h @@ -145,6 +145,8 @@ #define OMAP3430_CLKACTIVITY_MPU_MASK (1 << 0) /* CM_FCLKEN1_CORE specific bits */ +#define OMAP3430_EN_MODEM (1 << 31) +#define OMAP3430_EN_MODEM_SHIFT 31 /* CM_ICLKEN1_CORE specific bits */ #define OMAP3430_EN_ICR (1 << 29) @@ -161,6 +163,8 @@ #define OMAP3430_EN_MAILBOXES_SHIFT 7 #define OMAP3430_EN_OMAPCTRL (1 << 6) #define OMAP3430_EN_OMAPCTRL_SHIFT 6 +#define OMAP3430_EN_SAD2D (1 << 3) +#define OMAP3430_EN_SAD2D_SHIFT 3 #define OMAP3430_EN_SDRC (1 << 1) #define OMAP3430_EN_SDRC_SHIFT 1 @@ -176,6 +180,10 @@ #define OMAP3430_EN_DES1 (1 << 0) #define OMAP3430_EN_DES1_SHIFT 0 +/* CM_ICLKEN3_CORE */ +#define OMAP3430_EN_MAD2D_SHIFT 3 +#define OMAP3430_EN_MAD2D (1 << 3) + /* CM_FCLKEN3_CORE specific bits */ #define OMAP3430ES2_EN_TS_SHIFT 1 #define OMAP3430ES2_EN_TS_MASK (1 << 1) @@ -231,6 +239,8 @@ #define OMAP3430ES2_ST_CPEFUSE_MASK (1 << 0) /* CM_AUTOIDLE1_CORE */ +#define OMAP3430_AUTO_MODEM (1 << 31) +#define OMAP3430_AUTO_MODEM_SHIFT 31 #define OMAP3430ES2_AUTO_MMC3 (1 << 30) #define OMAP3430ES2_AUTO_MMC3_SHIFT 30 #define OMAP3430ES2_AUTO_ICR (1 << 29) @@ -287,6 +297,8 @@ #define OMAP3430_AUTO_HSOTGUSB_SHIFT 4 #define OMAP3430ES1_AUTO_D2D (1 << 3) #define OMAP3430ES1_AUTO_D2D_SHIFT 3 +#define OMAP3430_AUTO_SAD2D (1 << 3) +#define OMAP3430_AUTO_SAD2D_SHIFT 3 #define OMAP3430_AUTO_SSI (1 << 0) #define OMAP3430_AUTO_SSI_SHIFT 0 @@ -308,6 +320,8 @@ #define OMAP3430ES2_AUTO_USBTLL (1 << 2) #define OMAP3430ES2_AUTO_USBTLL_SHIFT 2 #define OMAP3430ES2_AUTO_USBTLL_MASK (1 << 2) +#define OMAP3430_AUTO_MAD2D_SHIFT 3 +#define OMAP3430_AUTO_MAD2D (1 << 3) /* CM_CLKSEL_CORE */ #define OMAP3430_CLKSEL_SSI_SHIFT 8 diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h index 65fdf78c91e..1d3c93bf86d 100644 --- a/arch/arm/mach-omap2/cm.h +++ b/arch/arm/mach-omap2/cm.h @@ -16,17 +16,12 @@ #include "prcm-common.h" -#ifndef __ASSEMBLER__ -#define OMAP_CM_REGADDR(module, reg) \ - IO_ADDRESS(OMAP2_CM_BASE + (module) + (reg)) -#else #define OMAP2420_CM_REGADDR(module, reg) \ IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg)) #define OMAP2430_CM_REGADDR(module, reg) \ IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg)) #define OMAP34XX_CM_REGADDR(module, reg) \ IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg)) -#endif /* * Architecture-specific global CM registers @@ -38,6 +33,7 @@ #define OMAP3430_CM_SYSCONFIG OMAP_CM_REGADDR(OCP_MOD, 0x0010) #define OMAP3430_CM_POLCTRL OMAP_CM_REGADDR(OCP_MOD, 0x009c) +#define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070 #define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070) /* diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c new file mode 100644 index 00000000000..2fd22f9c5f0 --- /dev/null +++ b/arch/arm/mach-omap2/gpmc-onenand.c @@ -0,0 +1,330 @@ +/* + * linux/arch/arm/mach-omap2/gpmc-onenand.c + * + * Copyright (C) 2006 - 2009 Nokia Corporation + * Contacts: Juha Yrjola + * Tony Lindgren + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mtd/onenand_regs.h> +#include <linux/io.h> + +#include <asm/mach/flash.h> + +#include <mach/onenand.h> +#include <mach/board.h> +#include <mach/gpmc.h> + +static struct omap_onenand_platform_data *gpmc_onenand_data; + +static struct platform_device gpmc_onenand_device = { + .name = "omap2-onenand", + .id = -1, +}; + +static int omap2_onenand_set_async_mode(int cs, void __iomem *onenand_base) +{ + struct gpmc_timings t; + + const int t_cer = 15; + const int t_avdp = 12; + const int t_aavdh = 7; + const int t_ce = 76; + const int t_aa = 76; + const int t_oe = 20; + const int t_cez = 20; /* max of t_cez, t_oez */ + const int t_ds = 30; + const int t_wpl = 40; + const int t_wph = 30; + + memset(&t, 0, sizeof(t)); + t.sync_clk = 0; + t.cs_on = 0; + t.adv_on = 0; + + /* Read */ + t.adv_rd_off = gpmc_round_ns_to_ticks(max_t(int, t_avdp, t_cer)); + t.oe_on = t.adv_rd_off + gpmc_round_ns_to_ticks(t_aavdh); + t.access = t.adv_on + gpmc_round_ns_to_ticks(t_aa); + t.access = max_t(int, t.access, t.cs_on + gpmc_round_ns_to_ticks(t_ce)); + t.access = max_t(int, t.access, t.oe_on + gpmc_round_ns_to_ticks(t_oe)); + t.oe_off = t.access + gpmc_round_ns_to_ticks(1); + t.cs_rd_off = t.oe_off; + t.rd_cycle = t.cs_rd_off + gpmc_round_ns_to_ticks(t_cez); + + /* Write */ + t.adv_wr_off = t.adv_rd_off; + t.we_on = t.oe_on; + if (cpu_is_omap34xx()) { + t.wr_data_mux_bus = t.we_on; + t.wr_access = t.we_on + gpmc_round_ns_to_ticks(t_ds); + } + t.we_off = t.we_on + gpmc_round_ns_to_ticks(t_wpl); + t.cs_wr_off = t.we_off + gpmc_round_ns_to_ticks(t_wph); + t.wr_cycle = t.cs_wr_off + gpmc_round_ns_to_ticks(t_cez); + + /* Configure GPMC for asynchronous read */ + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, + GPMC_CONFIG1_DEVICESIZE_16 | + GPMC_CONFIG1_MUXADDDATA); + + return gpmc_cs_set_timings(cs, &t); +} + +static void set_onenand_cfg(void __iomem *onenand_base, int latency, + int sync_read, int sync_write, int hf) +{ + u32 reg; + + reg = readw(onenand_base + ONENAND_REG_SYS_CFG1); + reg &= ~((0x7 << ONENAND_SYS_CFG1_BRL_SHIFT) | (0x7 << 9)); + reg |= (latency << ONENAND_SYS_CFG1_BRL_SHIFT) | + ONENAND_SYS_CFG1_BL_16; + if (sync_read) + reg |= ONENAND_SYS_CFG1_SYNC_READ; + else + reg &= ~ONENAND_SYS_CFG1_SYNC_READ; + if (sync_write) + reg |= ONENAND_SYS_CFG1_SYNC_WRITE; + else + reg &= ~ONENAND_SYS_CFG1_SYNC_WRITE; + if (hf) + reg |= ONENAND_SYS_CFG1_HF; + else + reg &= ~ONENAND_SYS_CFG1_HF; + writew(reg, onenand_base + ONENAND_REG_SYS_CFG1); +} + +static int omap2_onenand_set_sync_mode(struct omap_onenand_platform_data *cfg, + void __iomem *onenand_base, + int freq) +{ + struct gpmc_timings t; + const int t_cer = 15; + const int t_avdp = 12; + const int t_cez = 20; /* max of t_cez, t_oez */ + const int t_ds = 30; + const int t_wpl = 40; + const int t_wph = 30; + int min_gpmc_clk_period, t_ces, t_avds, t_avdh, t_ach, t_aavdh, t_rdyo; + int tick_ns, div, fclk_offset_ns, fclk_offset, gpmc_clk_ns, latency; + int first_time = 0, hf = 0, sync_read = 0, sync_write = 0; + int err, ticks_cez; + int cs = cfg->cs; + u32 reg; + + if (cfg->flags & ONENAND_SYNC_READ) { + sync_read = 1; + } else if (cfg->flags & ONENAND_SYNC_READWRITE) { + sync_read = 1; + sync_write = 1; + } + + if (!freq) { + /* Very first call freq is not known */ + err = omap2_onenand_set_async_mode(cs, onenand_base); + if (err) + return err; + reg = readw(onenand_base + ONENAND_REG_VERSION_ID); + switch ((reg >> 4) & 0xf) { + case 0: + freq = 40; + break; + case 1: + freq = 54; + break; + case 2: + freq = 66; + break; + case 3: + freq = 83; + break; + case 4: + freq = 104; + break; + default: + freq = 54; + break; + } + first_time = 1; + } + + switch (freq) { + case 83: + min_gpmc_clk_period = 12; /* 83 MHz */ + t_ces = 5; + t_avds = 4; + t_avdh = 2; + t_ach = 6; + t_aavdh = 6; + t_rdyo = 9; + break; + case 66: + min_gpmc_clk_period = 15; /* 66 MHz */ + t_ces = 6; + t_avds = 5; + t_avdh = 2; + t_ach = 6; + t_aavdh = 6; + t_rdyo = 11; + break; + default: + min_gpmc_clk_period = 18; /* 54 MHz */ + t_ces = 7; + t_avds = 7; + t_avdh = 7; + t_ach = 9; + t_aavdh = 7; + t_rdyo = 15; + sync_write = 0; + break; + } + + tick_ns = gpmc_ticks_to_ns(1); + div = gpmc_cs_calc_divider(cs, min_gpmc_clk_period); + gpmc_clk_ns = gpmc_ticks_to_ns(div); + if (gpmc_clk_ns < 15) /* >66Mhz */ + hf = 1; + if (hf) + latency = 6; + else if (gpmc_clk_ns >= 25) /* 40 MHz*/ + latency = 3; + else + latency = 4; + + if (first_time) + set_onenand_cfg(onenand_base, latency, + sync_read, sync_write, hf); + + if (div == 1) { + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG2); + reg |= (1 << 7); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, reg); + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG3); + reg |= (1 << 7); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, reg); + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG4); + reg |= (1 << 7); + reg |= (1 << 23); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, reg); + } else { + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG2); + reg &= ~(1 << 7); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, reg); + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG3); + reg &= ~(1 << 7); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, reg); + reg = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG4); + reg &= ~(1 << 7); + reg &= ~(1 << 23); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, reg); + } + + /* Set synchronous read timings */ + memset(&t, 0, sizeof(t)); + t.sync_clk = min_gpmc_clk_period; + t.cs_on = 0; + t.adv_on = 0; + fclk_offset_ns = gpmc_round_ns_to_ticks(max_t(int, t_ces, t_avds)); + fclk_offset = gpmc_ns_to_ticks(fclk_offset_ns); + t.page_burst_access = gpmc_clk_ns; + + /* Read */ + t.adv_rd_off = gpmc_ticks_to_ns(fclk_offset + gpmc_ns_to_ticks(t_avdh)); + t.oe_on = gpmc_ticks_to_ns(fclk_offset + gpmc_ns_to_ticks(t_ach)); + t.access = gpmc_ticks_to_ns(fclk_offset + (latency + 1) * div); + t.oe_off = t.access + gpmc_round_ns_to_ticks(1); + t.cs_rd_off = t.oe_off; + ticks_cez = ((gpmc_ns_to_ticks(t_cez) + div - 1) / div) * div; + t.rd_cycle = gpmc_ticks_to_ns(fclk_offset + (latency + 1) * div + + ticks_cez); + + /* Write */ + if (sync_write) { + t.adv_wr_off = t.adv_rd_off; + t.we_on = 0; + t.we_off = t.cs_rd_off; + t.cs_wr_off = t.cs_rd_off; + t.wr_cycle = t.rd_cycle; + if (cpu_is_omap34xx()) { + t.wr_data_mux_bus = gpmc_ticks_to_ns(fclk_offset + + gpmc_ns_to_ticks(min_gpmc_clk_period + + t_rdyo)); + t.wr_access = t.access; + } + } else { + t.adv_wr_off = gpmc_round_ns_to_ticks(max_t(int, + t_avdp, t_cer)); + t.we_on = t.adv_wr_off + gpmc_round_ns_to_ticks(t_aavdh); + t.we_off = t.we_on + gpmc_round_ns_to_ticks(t_wpl); + t.cs_wr_off = t.we_off + gpmc_round_ns_to_ticks(t_wph); + t.wr_cycle = t.cs_wr_off + gpmc_round_ns_to_ticks(t_cez); + if (cpu_is_omap34xx()) { + t.wr_data_mux_bus = t.we_on; + t.wr_access = t.we_on + gpmc_round_ns_to_ticks(t_ds); + } + } + + /* Configure GPMC for synchronous read */ + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, + GPMC_CONFIG1_WRAPBURST_SUPP | + GPMC_CONFIG1_READMULTIPLE_SUPP | + (sync_read ? GPMC_CONFIG1_READTYPE_SYNC : 0) | + (sync_write ? GPMC_CONFIG1_WRITEMULTIPLE_SUPP : 0) | + (sync_write ? GPMC_CONFIG1_WRITETYPE_SYNC : 0) | + GPMC_CONFIG1_CLKACTIVATIONTIME(fclk_offset) | + GPMC_CONFIG1_PAGE_LEN(2) | + (cpu_is_omap34xx() ? 0 : + (GPMC_CONFIG1_WAIT_READ_MON | + GPMC_CONFIG1_WAIT_PIN_SEL(0))) | + GPMC_CONFIG1_DEVICESIZE_16 | + GPMC_CONFIG1_DEVICETYPE_NOR | + GPMC_CONFIG1_MUXADDDATA); + + err = gpmc_cs_set_timings(cs, &t); + if (err) + return err; + + set_onenand_cfg(onenand_base, latency, sync_read, sync_write, hf); + + return 0; +} + +static int gpmc_onenand_setup(void __iomem *onenand_base, int freq) +{ + struct device *dev = &gpmc_onenand_device.dev; + + /* Set sync timings in GPMC */ + if (omap2_onenand_set_sync_mode(gpmc_onenand_data, onenand_base, + freq) < 0) { + dev_err(dev, "Unable to set synchronous mode\n"); + return -EINVAL; + } + + return 0; +} + +void __init gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data) +{ + gpmc_onenand_data = _onenand_data; + gpmc_onenand_data->onenand_setup = gpmc_onenand_setup; + gpmc_onenand_device.dev.platform_data = gpmc_onenand_data; + + if (cpu_is_omap24xx() && + (gpmc_onenand_data->flags & ONENAND_SYNC_READWRITE)) { + printk(KERN_ERR "Onenand using only SYNC_READ on 24xx\n"); + gpmc_onenand_data->flags &= ~ONENAND_SYNC_READWRITE; + gpmc_onenand_data->flags |= ONENAND_SYNC_READ; + } + + if (platform_device_register(&gpmc_onenand_device) < 0) { + printk(KERN_ERR "Unable to register OneNAND device\n"); + return; + } +} diff --git a/arch/arm/mach-omap2/gpmc-smc91x.c b/arch/arm/mach-omap2/gpmc-smc91x.c new file mode 100644 index 00000000000..df99d31d8b6 --- /dev/null +++ b/arch/arm/mach-omap2/gpmc-smc91x.c @@ -0,0 +1,189 @@ +/* + * linux/arch/arm/mach-omap2/gpmc-smc91x.c + * + * Copyright (C) 2009 Nokia Corporation + * Contact: Tony Lindgren + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/smc91x.h> + +#include <mach/board.h> +#include <mach/gpmc.h> +#include <mach/gpmc-smc91x.h> + +static struct omap_smc91x_platform_data *gpmc_cfg; + +static struct resource gpmc_smc91x_resources[] = { + [0] = { + .flags = IORESOURCE_MEM, + }, + [1] = { + .flags = IORESOURCE_IRQ, + }, +}; + +static struct smc91x_platdata gpmc_smc91x_info = { + .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_0, +}; + +static struct platform_device gpmc_smc91x_device = { + .name = "smc91x", + .id = -1, + .num_resources = ARRAY_SIZE(gpmc_smc91x_resources), + .resource = gpmc_smc91x_resources, + .dev = { + .platform_data = &gpmc_smc91x_info, + }, +}; + +/* + * Set the gpmc timings for smc91c96. The timings are taken + * from the data sheet available at: + * http://www.smsc.com/main/catalog/lan91c96.html + * REVISIT: Level shifters can add at least to the access latency. + */ +static int smc91c96_gpmc_retime(void) +{ + struct gpmc_timings t; + const int t3 = 10; /* Figure 12.2 read and 12.4 write */ + const int t4_r = 20; /* Figure 12.2 read */ + const int t4_w = 5; /* Figure 12.4 write */ + const int t5 = 25; /* Figure 12.2 read */ + const int t6 = 15; /* Figure 12.2 read */ + const int t7 = 5; /* Figure 12.4 write */ + const int t8 = 5; /* Figure 12.4 write */ + const int t20 = 185; /* Figure 12.2 read and 12.4 write */ + u32 l; + + memset(&t, 0, sizeof(t)); + + /* Read timings */ + t.cs_on = 0; + t.adv_on = t.cs_on; + t.oe_on = t.adv_on + t3; + t.access = t.oe_on + t5; + t.oe_off = t.access; + t.adv_rd_off = t.oe_off + max(t4_r, t6); + t.cs_rd_off = t.oe_off; + t.rd_cycle = t20 - t.oe_on; + + /* Write timings */ + t.we_on = t.adv_on + t3; + + if (cpu_is_omap34xx() && (gpmc_cfg->flags & GPMC_MUX_ADD_DATA)) { + t.wr_data_mux_bus = t.we_on; + t.we_off = t.wr_data_mux_bus + t7; + } else + t.we_off = t.we_on + t7; + if (cpu_is_omap34xx()) + t.wr_access = t.we_off; + t.adv_wr_off = t.we_off + max(t4_w, t8); + t.cs_wr_off = t.we_off + t4_w; + t.wr_cycle = t20 - t.we_on; + + l = GPMC_CONFIG1_DEVICESIZE_16; + if (gpmc_cfg->flags & GPMC_MUX_ADD_DATA) + l |= GPMC_CONFIG1_MUXADDDATA; + if (gpmc_cfg->flags & GPMC_READ_MON) + l |= GPMC_CONFIG1_WAIT_READ_MON; + if (gpmc_cfg->flags & GPMC_WRITE_MON) + l |= GPMC_CONFIG1_WAIT_WRITE_MON; + if (gpmc_cfg->wait_pin) + l |= GPMC_CONFIG1_WAIT_PIN_SEL(gpmc_cfg->wait_pin); + gpmc_cs_write_reg(gpmc_cfg->cs, GPMC_CS_CONFIG1, l); + + /* + * FIXME: Calculate the address and data bus muxed timings. + * Note that at least adv_rd_off needs to be changed according + * to omap3430 TRM Figure 11-11. Are the sdp boards using the + * FPGA in between smc91x and omap as the timings are different + * from above? + */ + if (gpmc_cfg->flags & GPMC_MUX_ADD_DATA) + return 0; + + return gpmc_cs_set_timings(gpmc_cfg->cs, &t); +} + +/* + * Initialize smc91x device connected to the GPMC. Note that we + * assume that pin multiplexing is done in the board-*.c file, + * or in the bootloader. + */ +void __init gpmc_smc91x_init(struct omap_smc91x_platform_data *board_data) +{ + unsigned long cs_mem_base; + int ret; + + gpmc_cfg = board_data; + + if (gpmc_cfg->flags & GPMC_TIMINGS_SMC91C96) + gpmc_cfg->retime = smc91c96_gpmc_retime; + + if (gpmc_cs_request(gpmc_cfg->cs, SZ_16M, &cs_mem_base) < 0) { + printk(KERN_ERR "Failed to request GPMC mem for smc91x\n"); + return; + } + + gpmc_smc91x_resources[0].start = cs_mem_base + 0x300; + gpmc_smc91x_resources[0].end = cs_mem_base + 0x30f; + gpmc_smc91x_resources[1].flags |= (gpmc_cfg->flags & IRQF_TRIGGER_MASK); + + if (gpmc_cfg->retime) { + ret = gpmc_cfg->retime(); + if (ret != 0) + goto free1; + } + + if (gpio_request(gpmc_cfg->gpio_irq, "SMC91X irq") < 0) + goto free1; + + gpio_direction_input(gpmc_cfg->gpio_irq); + gpmc_smc91x_resources[1].start = gpio_to_irq(gpmc_cfg->gpio_irq); + + if (gpmc_cfg->gpio_pwrdwn) { + ret = gpio_request(gpmc_cfg->gpio_pwrdwn, "SMC91X powerdown"); + if (ret) + goto free2; + gpio_direction_output(gpmc_cfg->gpio_pwrdwn, 0); + } + + if (gpmc_cfg->gpio_reset) { + ret = gpio_request(gpmc_cfg->gpio_reset, "SMC91X reset"); + if (ret) + goto free3; + + gpio_direction_output(gpmc_cfg->gpio_reset, 0); + gpio_set_value(gpmc_cfg->gpio_reset, 1); + msleep(100); + gpio_set_value(gpmc_cfg->gpio_reset, 0); + } + + if (platform_device_register(&gpmc_smc91x_device) < 0) { + printk(KERN_ERR "Unable to register smc91x device\n"); + gpio_free(gpmc_cfg->gpio_reset); + goto free3; + } + + return; + +free3: + if (gpmc_cfg->gpio_pwrdwn) + gpio_free(gpmc_cfg->gpio_pwrdwn); +free2: + gpio_free(gpmc_cfg->gpio_irq); +free1: + gpmc_cs_free(gpmc_cfg->cs); + + printk(KERN_ERR "Could not initialize smc91x\n"); +} diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 2249049c1d5..f91934b2b09 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -5,6 +5,9 @@ * * Author: Juha Yrjola * + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -424,6 +427,9 @@ void __init gpmc_init(void) } else if (cpu_is_omap34xx()) { ck = "gpmc_fck"; l = OMAP34XX_GPMC_BASE; + } else if (cpu_is_omap44xx()) { + ck = "gpmc_fck"; + l = OMAP44XX_GPMC_BASE; } gpmc_l3_clk = clk_get(NULL, ck); diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 34b5914e0f8..458990e20c6 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -6,6 +6,9 @@ * Copyright (C) 2005 Nokia Corporation * Written by Tony Lindgren <tony@atomide.com> * + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -200,7 +203,10 @@ void __init omap2_check_revision(void) omap24xx_check_revision(); else if (cpu_is_omap34xx()) omap34xx_check_revision(); - else + else if (cpu_is_omap44xx()) { + printk(KERN_INFO "FIXME: CPU revision = OMAP4430\n"); + return; + } else pr_err("OMAP revision unknown, please fix!\n"); /* diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 916fcd3a232..32afd944821 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -4,12 +4,14 @@ * OMAP2 I/O mapping code * * Copyright (C) 2005 Nokia Corporation - * Copyright (C) 2007 Texas Instruments + * Copyright (C) 2007-2009 Texas Instruments * * Author: * Juha Yrjola <juha.yrjola@nokia.com> * Syed Khasim <x0khasim@ti.com> * + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. @@ -30,6 +32,7 @@ #include <mach/sdrc.h> #include <mach/gpmc.h> +#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once clkdev is ready */ #include "clock.h" #include <mach/powerdomain.h> @@ -38,7 +41,7 @@ #include <mach/clockdomain.h> #include "clockdomains.h" - +#endif /* * The machine specific code may provide the extra mapping besides the * default mapping provided here. @@ -166,6 +169,46 @@ static struct map_desc omap34xx_io_desc[] __initdata = { }, }; #endif +#ifdef CONFIG_ARCH_OMAP4 +static struct map_desc omap44xx_io_desc[] __initdata = { + { + .virtual = L3_44XX_VIRT, + .pfn = __phys_to_pfn(L3_44XX_PHYS), + .length = L3_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_44XX_VIRT, + .pfn = __phys_to_pfn(L4_44XX_PHYS), + .length = L4_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_WK_44XX_VIRT, + .pfn = __phys_to_pfn(L4_WK_44XX_PHYS), + .length = L4_WK_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = OMAP44XX_GPMC_VIRT, + .pfn = __phys_to_pfn(OMAP44XX_GPMC_PHYS), + .length = OMAP44XX_GPMC_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_PER_44XX_VIRT, + .pfn = __phys_to_pfn(L4_PER_44XX_PHYS), + .length = L4_PER_44XX_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = L4_EMU_44XX_VIRT, + .pfn = __phys_to_pfn(L4_EMU_44XX_PHYS), + .length = L4_EMU_44XX_SIZE, + .type = MT_DEVICE, + }, +}; +#endif void __init omap2_map_common_io(void) { @@ -183,6 +226,9 @@ void __init omap2_map_common_io(void) iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc)); #endif +#if defined(CONFIG_ARCH_OMAP4) + iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); +#endif /* Normally devicemaps_init() would flush caches and tlb after * mdesc->map_io(), but we must also do it here because of the CPU * revision check below. @@ -198,9 +244,11 @@ void __init omap2_map_common_io(void) void __init omap2_init_common_hw(struct omap_sdrc_params *sp) { omap2_mux_init(); +#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */ pwrdm_init(powerdomains_omap); clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps); omap2_clk_init(); omap2_sdrc_init(sp); +#endif gpmc_init(); } diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c new file mode 100644 index 00000000000..015f22a53ea --- /dev/null +++ b/arch/arm/mach-omap2/iommu2.c @@ -0,0 +1,323 @@ +/* + * omap iommu: omap2/3 architecture specific functions + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>, + * Paul Mundt and Toshihiro Kobayashi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/err.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <linux/stringify.h> + +#include <mach/iommu.h> + +/* + * omap2 architecture specific register bit definitions + */ +#define IOMMU_ARCH_VERSION 0x00000011 + +/* SYSCONF */ +#define MMU_SYS_IDLE_SHIFT 3 +#define MMU_SYS_IDLE_FORCE (0 << MMU_SYS_IDLE_SHIFT) +#define MMU_SYS_IDLE_NONE (1 << MMU_SYS_IDLE_SHIFT) +#define MMU_SYS_IDLE_SMART (2 << MMU_SYS_IDLE_SHIFT) +#define MMU_SYS_IDLE_MASK (3 << MMU_SYS_IDLE_SHIFT) + +#define MMU_SYS_SOFTRESET (1 << 1) +#define MMU_SYS_AUTOIDLE 1 + +/* SYSSTATUS */ +#define MMU_SYS_RESETDONE 1 + +/* IRQSTATUS & IRQENABLE */ +#define MMU_IRQ_MULTIHITFAULT (1 << 4) +#define MMU_IRQ_TABLEWALKFAULT (1 << 3) +#define MMU_IRQ_EMUMISS (1 << 2) +#define MMU_IRQ_TRANSLATIONFAULT (1 << 1) +#define MMU_IRQ_TLBMISS (1 << 0) +#define MMU_IRQ_MASK \ + (MMU_IRQ_MULTIHITFAULT | MMU_IRQ_TABLEWALKFAULT | MMU_IRQ_EMUMISS | \ + MMU_IRQ_TRANSLATIONFAULT) + +/* MMU_CNTL */ +#define MMU_CNTL_SHIFT 1 +#define MMU_CNTL_MASK (7 << MMU_CNTL_SHIFT) +#define MMU_CNTL_EML_TLB (1 << 3) +#define MMU_CNTL_TWL_EN (1 << 2) +#define MMU_CNTL_MMU_EN (1 << 1) + +#define get_cam_va_mask(pgsz) \ + (((pgsz) == MMU_CAM_PGSZ_16M) ? 0xff000000 : \ + ((pgsz) == MMU_CAM_PGSZ_1M) ? 0xfff00000 : \ + ((pgsz) == MMU_CAM_PGSZ_64K) ? 0xffff0000 : \ + ((pgsz) == MMU_CAM_PGSZ_4K) ? 0xfffff000 : 0) + +static int omap2_iommu_enable(struct iommu *obj) +{ + u32 l, pa; + unsigned long timeout; + + if (!obj->iopgd || !IS_ALIGNED((u32)obj->iopgd, SZ_16K)) + return -EINVAL; + + pa = virt_to_phys(obj->iopgd); + if (!IS_ALIGNED(pa, SZ_16K)) + return -EINVAL; + + iommu_write_reg(obj, MMU_SYS_SOFTRESET, MMU_SYSCONFIG); + + timeout = jiffies + msecs_to_jiffies(20); + do { + l = iommu_read_reg(obj, MMU_SYSSTATUS); + if (l & MMU_SYS_RESETDONE) + break; + } while (time_after(jiffies, timeout)); + + if (!(l & MMU_SYS_RESETDONE)) { + dev_err(obj->dev, "can't take mmu out of reset\n"); + return -ENODEV; + } + + l = iommu_read_reg(obj, MMU_REVISION); + dev_info(obj->dev, "%s: version %d.%d\n", obj->name, + (l >> 4) & 0xf, l & 0xf); + + l = iommu_read_reg(obj, MMU_SYSCONFIG); + l &= ~MMU_SYS_IDLE_MASK; + l |= (MMU_SYS_IDLE_SMART | MMU_SYS_AUTOIDLE); + iommu_write_reg(obj, l, MMU_SYSCONFIG); + + iommu_write_reg(obj, MMU_IRQ_MASK, MMU_IRQENABLE); + iommu_write_reg(obj, pa, MMU_TTB); + + l = iommu_read_reg(obj, MMU_CNTL); + l &= ~MMU_CNTL_MASK; + l |= (MMU_CNTL_MMU_EN | MMU_CNTL_TWL_EN); + iommu_write_reg(obj, l, MMU_CNTL); + + return 0; +} + +static void omap2_iommu_disable(struct iommu *obj) +{ + u32 l = iommu_read_reg(obj, MMU_CNTL); + + l &= ~MMU_CNTL_MASK; + iommu_write_reg(obj, l, MMU_CNTL); + iommu_write_reg(obj, MMU_SYS_IDLE_FORCE, MMU_SYSCONFIG); + + dev_dbg(obj->dev, "%s is shutting down\n", obj->name); +} + +static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra) +{ + int i; + u32 stat, da; + const char *err_msg[] = { + "tlb miss", + "translation fault", + "emulation miss", + "table walk fault", + "multi hit fault", + }; + + stat = iommu_read_reg(obj, MMU_IRQSTATUS); + stat &= MMU_IRQ_MASK; + if (!stat) + return 0; + + da = iommu_read_reg(obj, MMU_FAULT_AD); + *ra = da; + + dev_err(obj->dev, "%s:\tda:%08x ", __func__, da); + + for (i = 0; i < ARRAY_SIZE(err_msg); i++) { + if (stat & (1 << i)) + printk("%s ", err_msg[i]); + } + printk("\n"); + + iommu_write_reg(obj, stat, MMU_IRQSTATUS); + return stat; +} + +static void omap2_tlb_read_cr(struct iommu *obj, struct cr_regs *cr) +{ + cr->cam = iommu_read_reg(obj, MMU_READ_CAM); + cr->ram = iommu_read_reg(obj, MMU_READ_RAM); +} + +static void omap2_tlb_load_cr(struct iommu *obj, struct cr_regs *cr) +{ + iommu_write_reg(obj, cr->cam | MMU_CAM_V, MMU_CAM); + iommu_write_reg(obj, cr->ram, MMU_RAM); +} + +static u32 omap2_cr_to_virt(struct cr_regs *cr) +{ + u32 page_size = cr->cam & MMU_CAM_PGSZ_MASK; + u32 mask = get_cam_va_mask(cr->cam & page_size); + + return cr->cam & mask; +} + +static struct cr_regs *omap2_alloc_cr(struct iommu *obj, struct iotlb_entry *e) +{ + struct cr_regs *cr; + + if (e->da & ~(get_cam_va_mask(e->pgsz))) { + dev_err(obj->dev, "%s:\twrong alignment: %08x\n", __func__, + e->da); + return ERR_PTR(-EINVAL); + } + + cr = kmalloc(sizeof(*cr), GFP_KERNEL); + if (!cr) + return ERR_PTR(-ENOMEM); + + cr->cam = (e->da & MMU_CAM_VATAG_MASK) | e->prsvd | e->pgsz; + cr->ram = e->pa | e->endian | e->elsz | e->mixed; + + return cr; +} + +static inline int omap2_cr_valid(struct cr_regs *cr) +{ + return cr->cam & MMU_CAM_V; +} + +static u32 omap2_get_pte_attr(struct iotlb_entry *e) +{ + u32 attr; + + attr = e->mixed << 5; + attr |= e->endian; + attr |= e->elsz >> 3; + attr <<= ((e->pgsz & MMU_CAM_PGSZ_4K) ? 0 : 6); + + return attr; +} + +static ssize_t omap2_dump_cr(struct iommu *obj, struct cr_regs *cr, char *buf) +{ + char *p = buf; + + /* FIXME: Need more detail analysis of cam/ram */ + p += sprintf(p, "%08x %08x\n", cr->cam, cr->ram); + + return p - buf; +} + +#define pr_reg(name) \ + p += sprintf(p, "%20s: %08x\n", \ + __stringify(name), iommu_read_reg(obj, MMU_##name)); + +static ssize_t omap2_iommu_dump_ctx(struct iommu *obj, char *buf) +{ + char *p = buf; + + pr_reg(REVISION); + pr_reg(SYSCONFIG); + pr_reg(SYSSTATUS); + pr_reg(IRQSTATUS); + pr_reg(IRQENABLE); + pr_reg(WALKING_ST); + pr_reg(CNTL); + pr_reg(FAULT_AD); + pr_reg(TTB); + pr_reg(LOCK); + pr_reg(LD_TLB); + pr_reg(CAM); + pr_reg(RAM); + pr_reg(GFLUSH); + pr_reg(FLUSH_ENTRY); + pr_reg(READ_CAM); + pr_reg(READ_RAM); + pr_reg(EMU_FAULT_AD); + + return p - buf; +} + +static void omap2_iommu_save_ctx(struct iommu *obj) +{ + int i; + u32 *p = obj->ctx; + + for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) { + p[i] = iommu_read_reg(obj, i * sizeof(u32)); + dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]); + } + + BUG_ON(p[0] != IOMMU_ARCH_VERSION); +} + +static void omap2_iommu_restore_ctx(struct iommu *obj) +{ + int i; + u32 *p = obj->ctx; + + for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) { + iommu_write_reg(obj, p[i], i * sizeof(u32)); + dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]); + } + + BUG_ON(p[0] != IOMMU_ARCH_VERSION); +} + +static void omap2_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e) +{ + e->da = cr->cam & MMU_CAM_VATAG_MASK; + e->pa = cr->ram & MMU_RAM_PADDR_MASK; + e->valid = cr->cam & MMU_CAM_V; + e->pgsz = cr->cam & MMU_CAM_PGSZ_MASK; + e->endian = cr->ram & MMU_RAM_ENDIAN_MASK; + e->elsz = cr->ram & MMU_RAM_ELSZ_MASK; + e->mixed = cr->ram & MMU_RAM_MIXED; +} + +static const struct iommu_functions omap2_iommu_ops = { + .version = IOMMU_ARCH_VERSION, + + .enable = omap2_iommu_enable, + .disable = omap2_iommu_disable, + .fault_isr = omap2_iommu_fault_isr, + + .tlb_read_cr = omap2_tlb_read_cr, + .tlb_load_cr = omap2_tlb_load_cr, + + .cr_to_e = omap2_cr_to_e, + .cr_to_virt = omap2_cr_to_virt, + .alloc_cr = omap2_alloc_cr, + .cr_valid = omap2_cr_valid, + .dump_cr = omap2_dump_cr, + + .get_pte_attr = omap2_get_pte_attr, + + .save_ctx = omap2_iommu_save_ctx, + .restore_ctx = omap2_iommu_restore_ctx, + .dump_ctx = omap2_iommu_dump_ctx, +}; + +static int __init omap2_iommu_init(void) +{ + return install_iommu_arch(&omap2_iommu_ops); +} +module_init(omap2_iommu_init); + +static void __exit omap2_iommu_exit(void) +{ + uninstall_iommu_arch(&omap2_iommu_ops); +} +module_exit(omap2_iommu_exit); + +MODULE_AUTHOR("Hiroshi DOYU, Paul Mundt and Toshihiro Kobayashi"); +MODULE_DESCRIPTION("omap iommu: omap2/3 architecture specific functions"); +MODULE_LICENSE("GPL v2"); diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index 998c5c45587..b82863887f1 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -28,7 +28,6 @@ #define INTC_MIR_CLEAR0 0x0088 #define INTC_MIR_SET0 0x008c #define INTC_PENDING_IRQ0 0x0098 - /* Number of IRQ state bits in each MIR register */ #define IRQ_BITS_PER_REG 32 @@ -134,7 +133,6 @@ static struct irq_chip omap_irq_chip = { .ack = omap_mask_ack_irq, .mask = omap_mask_irq, .unmask = omap_unmask_irq, - .disable = omap_mask_irq, }; static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) @@ -157,6 +155,22 @@ static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) intc_bank_write_reg(1 << 0, bank, INTC_SYSCONFIG); } +int omap_irq_pending(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(irq_banks); i++) { + struct omap_irq_bank *bank = irq_banks + i; + int irq; + + for (irq = 0; irq < bank->nr_irqs; irq += 32) + if (intc_bank_read_reg(bank, INTC_PENDING_IRQ0 + + ((irq >> 5) << 5))) + return 1; + } + return 0; +} + void __init omap_init_irq(void) { unsigned long nr_of_irqs = 0; diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c index dc40b3e7220..9756a878fd9 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ b/arch/arm/mach-omap2/mmc-twl4030.c @@ -16,8 +16,8 @@ #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/gpio.h> -#include <linux/i2c/twl4030.h> -#include <linux/regulator/machine.h> +#include <linux/mmc/host.h> +#include <linux/regulator/consumer.h> #include <mach/hardware.h> #include <mach/control.h> @@ -26,31 +26,9 @@ #include "mmc-twl4030.h" -#if defined(CONFIG_TWL4030_CORE) && \ - (defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)) -#define LDO_CLR 0x00 -#define VSEL_S2_CLR 0x40 - -#define VMMC1_DEV_GRP 0x27 -#define VMMC1_CLR 0x00 -#define VMMC1_315V 0x03 -#define VMMC1_300V 0x02 -#define VMMC1_285V 0x01 -#define VMMC1_185V 0x00 -#define VMMC1_DEDICATED 0x2A - -#define VMMC2_DEV_GRP 0x2B -#define VMMC2_CLR 0x40 -#define VMMC2_315V 0x0c -#define VMMC2_300V 0x0b -#define VMMC2_285V 0x0a -#define VMMC2_280V 0x09 -#define VMMC2_260V 0x08 -#define VMMC2_185V 0x06 -#define VMMC2_DEDICATED 0x2E - -#define VMMC_DEV_GRP_P1 0x20 +#if defined(CONFIG_REGULATOR) && \ + (defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)) static u16 control_pbias_offset; static u16 control_devconf1_offset; @@ -59,19 +37,16 @@ static u16 control_devconf1_offset; static struct twl_mmc_controller { struct omap_mmc_platform_data *mmc; - u8 twl_vmmc_dev_grp; - u8 twl_mmc_dedicated; - char name[HSMMC_NAME_LEN + 1]; -} hsmmc[OMAP34XX_NR_MMC] = { - { - .twl_vmmc_dev_grp = VMMC1_DEV_GRP, - .twl_mmc_dedicated = VMMC1_DEDICATED, - }, - { - .twl_vmmc_dev_grp = VMMC2_DEV_GRP, - .twl_mmc_dedicated = VMMC2_DEDICATED, - }, -}; + /* Vcc == configured supply + * Vcc_alt == optional + * - MMC1, supply for DAT4..DAT7 + * - MMC2/MMC2, external level shifter voltage supply, for + * chip (SDIO, eMMC, etc) or transceiver (MMC2 only) + */ + struct regulator *vcc; + struct regulator *vcc_aux; + char name[HSMMC_NAME_LEN + 1]; +} hsmmc[OMAP34XX_NR_MMC]; static int twl_mmc_card_detect(int irq) { @@ -117,16 +92,60 @@ static int twl_mmc_late_init(struct device *dev) int ret = 0; int i; - ret = gpio_request(mmc->slots[0].switch_pin, "mmc_cd"); - if (ret) - goto done; - ret = gpio_direction_input(mmc->slots[0].switch_pin); - if (ret) - goto err; + /* MMC/SD/SDIO doesn't require a card detect switch */ + if (gpio_is_valid(mmc->slots[0].switch_pin)) { + ret = gpio_request(mmc->slots[0].switch_pin, "mmc_cd"); + if (ret) + goto done; + ret = gpio_direction_input(mmc->slots[0].switch_pin); + if (ret) + goto err; + } + /* require at least main regulator */ for (i = 0; i < ARRAY_SIZE(hsmmc); i++) { if (hsmmc[i].name == mmc->slots[0].name) { + struct regulator *reg; + hsmmc[i].mmc = mmc; + + reg = regulator_get(dev, "vmmc"); + if (IS_ERR(reg)) { + dev_dbg(dev, "vmmc regulator missing\n"); + /* HACK: until fixed.c regulator is usable, + * we don't require a main regulator + * for MMC2 or MMC3 + */ + if (i != 0) + break; + ret = PTR_ERR(reg); + goto err; + } + hsmmc[i].vcc = reg; + mmc->slots[0].ocr_mask = mmc_regulator_get_ocrmask(reg); + + /* allow an aux regulator */ + reg = regulator_get(dev, "vmmc_aux"); + hsmmc[i].vcc_aux = IS_ERR(reg) ? NULL : reg; + + /* UGLY HACK: workaround regulator framework bugs. + * When the bootloader leaves a supply active, it's + * initialized with zero usecount ... and we can't + * disable it without first enabling it. Until the + * framework is fixed, we need a workaround like this + * (which is safe for MMC, but not in general). + */ + if (regulator_is_enabled(hsmmc[i].vcc) > 0) { + regulator_enable(hsmmc[i].vcc); + regulator_disable(hsmmc[i].vcc); + } + if (hsmmc[i].vcc_aux) { + if (regulator_is_enabled(reg) > 0) { + regulator_enable(reg); + regulator_disable(reg); + } + } + break; } } @@ -173,96 +192,6 @@ static int twl_mmc_resume(struct device *dev, int slot) #define twl_mmc_resume NULL #endif -/* - * Sets the MMC voltage in twl4030 - */ - -#define MMC1_OCR (MMC_VDD_165_195 \ - |MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31|MMC_VDD_31_32) -#define MMC2_OCR (MMC_VDD_165_195 \ - |MMC_VDD_25_26|MMC_VDD_26_27|MMC_VDD_27_28 \ - |MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31|MMC_VDD_31_32) - -static int twl_mmc_set_voltage(struct twl_mmc_controller *c, int vdd) -{ - int ret; - u8 vmmc = 0, dev_grp_val; - - if (!vdd) - goto doit; - - if (c->twl_vmmc_dev_grp == VMMC1_DEV_GRP) { - /* VMMC1: max 220 mA. And for 8-bit mode, - * VSIM: max 50 mA - */ - switch (1 << vdd) { - case MMC_VDD_165_195: - vmmc = VMMC1_185V; - /* and VSIM_180V */ - break; - case MMC_VDD_28_29: - vmmc = VMMC1_285V; - /* and VSIM_280V */ - break; - case MMC_VDD_29_30: - case MMC_VDD_30_31: - vmmc = VMMC1_300V; - /* and VSIM_300V */ - break; - case MMC_VDD_31_32: - vmmc = VMMC1_315V; - /* error if VSIM needed */ - break; - default: - return -EINVAL; - } - } else if (c->twl_vmmc_dev_grp == VMMC2_DEV_GRP) { - /* VMMC2: max 100 mA */ - switch (1 << vdd) { - case MMC_VDD_165_195: - vmmc = VMMC2_185V; - break; - case MMC_VDD_25_26: - case MMC_VDD_26_27: - vmmc = VMMC2_260V; - break; - case MMC_VDD_27_28: - vmmc = VMMC2_280V; - break; - case MMC_VDD_28_29: - vmmc = VMMC2_285V; - break; - case MMC_VDD_29_30: - case MMC_VDD_30_31: - vmmc = VMMC2_300V; - break; - case MMC_VDD_31_32: - vmmc = VMMC2_315V; - break; - default: - return -EINVAL; - } - } else { - return -EINVAL; - } - -doit: - if (vdd) - dev_grp_val = VMMC_DEV_GRP_P1; /* Power up */ - else - dev_grp_val = LDO_CLR; /* Power down */ - - ret = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, - dev_grp_val, c->twl_vmmc_dev_grp); - if (ret || !vdd) - return ret; - - ret = twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, - vmmc, c->twl_mmc_dedicated); - - return ret; -} - static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, int vdd) { @@ -273,11 +202,13 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, /* * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the - * card using the same TWL VMMC1 supply (hsmmc[0]); OMAP has both + * card with Vcc regulator (from twl4030 or whatever). OMAP has both * 1.8V and 3.0V modes, controlled by the PBIAS register. * * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which * is most naturally TWL VSIM; those pins also use PBIAS. + * + * FIXME handle VMMC1A as needed ... */ if (power_on) { if (cpu_is_omap2430()) { @@ -300,7 +231,7 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, reg &= ~OMAP2_PBIASLITEPWRDNZ0; omap_ctrl_writel(reg, control_pbias_offset); - ret = twl_mmc_set_voltage(c, vdd); + ret = mmc_regulator_set_ocr(c->vcc, vdd); /* 100ms delay required for PBIAS configuration */ msleep(100); @@ -316,7 +247,7 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, reg &= ~OMAP2_PBIASLITEPWRDNZ0; omap_ctrl_writel(reg, control_pbias_offset); - ret = twl_mmc_set_voltage(c, 0); + ret = mmc_regulator_set_ocr(c->vcc, 0); /* 100ms delay required for PBIAS configuration */ msleep(100); @@ -329,19 +260,33 @@ static int twl_mmc1_set_power(struct device *dev, int slot, int power_on, return ret; } -static int twl_mmc2_set_power(struct device *dev, int slot, int power_on, int vdd) +static int twl_mmc23_set_power(struct device *dev, int slot, int power_on, int vdd) { - int ret; + int ret = 0; struct twl_mmc_controller *c = &hsmmc[1]; struct omap_mmc_platform_data *mmc = dev->platform_data; + /* If we don't see a Vcc regulator, assume it's a fixed + * voltage always-on regulator. + */ + if (!c->vcc) + return 0; + /* - * Assume TWL VMMC2 (hsmmc[1]) is used only to power the card ... OMAP + * Assume Vcc regulator is used only to power the card ... OMAP * VDDS is used to power the pins, optionally with a transceiver to * support cards using voltages other than VDDS (1.8V nominal). When a * transceiver is used, DAT3..7 are muxed as transceiver control pins. + * + * In some cases this regulator won't support enable/disable; + * e.g. it's a fixed rail for a WLAN chip. + * + * In other cases vcc_aux switches interface power. Example, for + * eMMC cards it represents VccQ. Sometimes transceivers or SDIO + * chips/cards need an interface voltage rail too. */ if (power_on) { + /* only MMC2 supports a CLKIN */ if (mmc->slots[0].internal_clock) { u32 reg; @@ -349,24 +294,23 @@ static int twl_mmc2_set_power(struct device *dev, int slot, int power_on, int vd reg |= OMAP2_MMCSDIO2ADPCLKISEL; omap_ctrl_writel(reg, control_devconf1_offset); } - ret = twl_mmc_set_voltage(c, vdd); + ret = mmc_regulator_set_ocr(c->vcc, vdd); + /* enable interface voltage rail, if needed */ + if (ret == 0 && c->vcc_aux) { + ret = regulator_enable(c->vcc_aux); + if (ret < 0) + ret = mmc_regulator_set_ocr(c->vcc, 0); + } } else { - ret = twl_mmc_set_voltage(c, 0); + if (c->vcc_aux && (ret = regulator_is_enabled(c->vcc_aux)) > 0) + ret = regulator_disable(c->vcc_aux); + if (ret == 0) + ret = mmc_regulator_set_ocr(c->vcc, 0); } return ret; } -static int twl_mmc3_set_power(struct device *dev, int slot, int power_on, - int vdd) -{ - /* - * Assume MMC3 has self-powered device connected, for example on-board - * chip with external power source. - */ - return 0; -} - static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata; void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) @@ -412,10 +356,10 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) mmc->slots[0].wires = c->wires; mmc->slots[0].internal_clock = !c->ext_clock; mmc->dma_mask = 0xffffffff; + mmc->init = twl_mmc_late_init; - /* note: twl4030 card detect GPIOs normally switch VMMCx ... */ + /* note: twl4030 card detect GPIOs can disable VMMCx ... */ if (gpio_is_valid(c->gpio_cd)) { - mmc->init = twl_mmc_late_init; mmc->cleanup = twl_mmc_cleanup; mmc->suspend = twl_mmc_suspend; mmc->resume = twl_mmc_resume; @@ -439,26 +383,28 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) } else mmc->slots[0].gpio_wp = -EINVAL; - /* NOTE: we assume OMAP's MMC1 and MMC2 use - * the TWL4030's VMMC1 and VMMC2, respectively; - * and that MMC3 device has it's own power source. + /* NOTE: MMC slots should have a Vcc regulator set up. + * This may be from a TWL4030-family chip, another + * controllable regulator, or a fixed supply. + * + * temporary HACK: ocr_mask instead of fixed supply */ + mmc->slots[0].ocr_mask = c->ocr_mask; switch (c->mmc) { case 1: + /* on-chip level shifting via PBIAS0/PBIAS1 */ mmc->slots[0].set_power = twl_mmc1_set_power; - mmc->slots[0].ocr_mask = MMC1_OCR; break; case 2: - mmc->slots[0].set_power = twl_mmc2_set_power; - if (c->transceiver) - mmc->slots[0].ocr_mask = MMC2_OCR; - else - mmc->slots[0].ocr_mask = MMC_VDD_165_195; - break; + if (c->ext_clock) + c->transceiver = 1; + if (c->transceiver && c->wires > 4) + c->wires = 4; + /* FALLTHROUGH */ case 3: - mmc->slots[0].set_power = twl_mmc3_set_power; - mmc->slots[0].ocr_mask = MMC_VDD_165_195; + /* off-chip level shifting, or none */ + mmc->slots[0].set_power = twl_mmc23_set_power; break; default: pr_err("MMC%d configuration not supported!\n", c->mmc); diff --git a/arch/arm/mach-omap2/mmc-twl4030.h b/arch/arm/mach-omap2/mmc-twl4030.h index ea59e862429..3807c45c9a6 100644 --- a/arch/arm/mach-omap2/mmc-twl4030.h +++ b/arch/arm/mach-omap2/mmc-twl4030.h @@ -16,9 +16,10 @@ struct twl4030_hsmmc_info { int gpio_wp; /* or -EINVAL */ char *name; /* or NULL for default */ struct device *dev; /* returned: pointer to mmc adapter */ + int ocr_mask; /* temporary HACK */ }; -#if defined(CONFIG_TWL4030_CORE) && \ +#if defined(CONFIG_REGULATOR) && \ (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)) diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S new file mode 100644 index 00000000000..4afadba0947 --- /dev/null +++ b/arch/arm/mach-omap2/omap-headsmp.S @@ -0,0 +1,46 @@ +/* + * Secondary CPU startup routine source file. + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Interface functions needed for the SMP. This file is based on arm + * realview smp platform. + * Copyright (c) 2003 ARM Limited. + * + * This program is free software,you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <linux/init.h> + +/* Physical address needed since MMU not enabled yet on secondary core */ +#define OMAP4_AUX_CORE_BOOT1_PA 0x48281804 + + __INIT + +/* + * OMAP4 specific entry point for secondary CPU to jump from ROM + * code. This routine also provides a holding flag into which + * secondary core is held until we're ready for it to initialise. + * The primary core will update the this flag using a hardware + * register AuxCoreBoot1. + */ +ENTRY(omap_secondary_startup) + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #0x0f +hold: ldr r1, =OMAP4_AUX_CORE_BOOT1_PA @ read from AuxCoreBoot1 + ldr r2, [r1] + cmp r2, r0 + bne hold + + /* + * we've been released from the cpu_release,secondary_stack + * should now contain the SVC stack for this core + */ + b secondary_startup + diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c new file mode 100644 index 00000000000..8fe8d230f21 --- /dev/null +++ b/arch/arm/mach-omap2/omap-smp.c @@ -0,0 +1,178 @@ +/* + * OMAP4 SMP source file. It contains platform specific fucntions + * needed for the linux smp kernel. + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * Platform file needed for the OMAP4 SMP. This file is based on arm + * realview smp platform. + * * Copyright (c) 2002 ARM Limited. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/smp.h> +#include <linux/io.h> + +#include <asm/localtimer.h> +#include <asm/smp_scu.h> +#include <mach/hardware.h> + +/* Registers used for communicating startup information */ +#define OMAP4_AUXCOREBOOT_REG0 (OMAP44XX_VA_WKUPGEN_BASE + 0x800) +#define OMAP4_AUXCOREBOOT_REG1 (OMAP44XX_VA_WKUPGEN_BASE + 0x804) + +/* SCU base address */ +static void __iomem *scu_base = OMAP44XX_VA_SCU_BASE; + +/* + * Use SCU config register to count number of cores + */ +static inline unsigned int get_core_count(void) +{ + if (scu_base) + return scu_get_core_count(scu_base); + return 1; +} + +static DEFINE_SPINLOCK(boot_lock); + +void __cpuinit platform_secondary_init(unsigned int cpu) +{ + trace_hardirqs_off(); + + /* + * If any interrupts are already enabled for the primary + * core (e.g. timer irq), then they will not have been enabled + * for us: do so + */ + + gic_cpu_init(0, IO_ADDRESS(OMAP44XX_GIC_CPU_BASE)); + + /* + * Synchronise with the boot thread. + */ + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long timeout; + + /* + * Set synchronisation state between this boot processor + * and the secondary one + */ + spin_lock(&boot_lock); + + /* + * Update the AuxCoreBoot1 with boot state for secondary core. + * omap_secondary_startup() routine will hold the secondary core till + * the AuxCoreBoot1 register is updated with cpu state + * A barrier is added to ensure that write buffer is drained + */ + __raw_writel(cpu, OMAP4_AUXCOREBOOT_REG1); + smp_wmb(); + + timeout = jiffies + (1 * HZ); + while (time_before(jiffies, timeout)) + ; + + /* + * Now the secondary core is starting up let it run its + * calibrations, then wait for it to finish + */ + spin_unlock(&boot_lock); + + return 0; +} + +static void __init wakeup_secondary(void) +{ + /* + * Write the address of secondary startup routine into the + * AuxCoreBoot0 where ROM code will jump and start executing + * on secondary core once out of WFE + * A barrier is added to ensure that write buffer is drained + */ + __raw_writel(virt_to_phys(omap_secondary_startup), \ + OMAP4_AUXCOREBOOT_REG0); + smp_wmb(); + + /* + * Send a 'sev' to wake the secondary core from WFE. + */ + set_event(); + mb(); +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +void __init smp_init_cpus(void) +{ + unsigned int i, ncores = get_core_count(); + + for (i = 0; i < ncores; i++) + set_cpu_possible(i, true); +} + +void __init smp_prepare_cpus(unsigned int max_cpus) +{ + unsigned int ncores = get_core_count(); + unsigned int cpu = smp_processor_id(); + int i; + + /* sanity check */ + if (ncores == 0) { + printk(KERN_ERR + "OMAP4: strange core count of 0? Default to 1\n"); + ncores = 1; + } + + if (ncores > NR_CPUS) { + printk(KERN_WARNING + "OMAP4: no. of cores (%d) greater than configured " + "maximum of %d - clipping\n", + ncores, NR_CPUS); + ncores = NR_CPUS; + } + smp_store_cpu_info(cpu); + + /* + * are we trying to boot more cores than exist? + */ + if (max_cpus > ncores) + max_cpus = ncores; + + /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. + */ + for (i = 0; i < max_cpus; i++) + set_cpu_present(i, true); + + if (max_cpus > 1) { + /* + * Enable the local timer or broadcast device for the + * boot CPU, but only if we have more than one CPU. + */ + percpu_timer_setup(); + + /* + * Initialise the SCU and wake up the secondary core using + * wakeup_secondary(). + */ + scu_enable(scu_base); + wakeup_secondary(); + } +} diff --git a/arch/arm/mach-omap2/omap3-iommu.c b/arch/arm/mach-omap2/omap3-iommu.c new file mode 100644 index 00000000000..194189c746c --- /dev/null +++ b/arch/arm/mach-omap2/omap3-iommu.c @@ -0,0 +1,105 @@ +/* + * omap iommu: omap3 device registration + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/platform_device.h> + +#include <mach/iommu.h> + +#define OMAP3_MMU1_BASE 0x480bd400 +#define OMAP3_MMU2_BASE 0x5d000000 +#define OMAP3_MMU1_IRQ 24 +#define OMAP3_MMU2_IRQ 28 + + +static unsigned long iommu_base[] __initdata = { + OMAP3_MMU1_BASE, + OMAP3_MMU2_BASE, +}; + +static int iommu_irq[] __initdata = { + OMAP3_MMU1_IRQ, + OMAP3_MMU2_IRQ, +}; + +static const struct iommu_platform_data omap3_iommu_pdata[] __initconst = { + { + .name = "isp", + .nr_tlb_entries = 8, + .clk_name = "cam_ick", + }, +#if defined(CONFIG_MPU_BRIDGE_IOMMU) + { + .name = "iva2", + .nr_tlb_entries = 32, + .clk_name = "iva2_ck", + }, +#endif +}; +#define NR_IOMMU_DEVICES ARRAY_SIZE(omap3_iommu_pdata) + +static struct platform_device *omap3_iommu_pdev[NR_IOMMU_DEVICES]; + +static int __init omap3_iommu_init(void) +{ + int i, err; + + for (i = 0; i < NR_IOMMU_DEVICES; i++) { + struct platform_device *pdev; + struct resource res[2]; + + pdev = platform_device_alloc("omap-iommu", i); + if (!pdev) { + err = -ENOMEM; + goto err_out; + } + + memset(res, 0, sizeof(res)); + res[0].start = iommu_base[i]; + res[0].end = iommu_base[i] + MMU_REG_SIZE - 1; + res[0].flags = IORESOURCE_MEM; + res[1].start = res[1].end = iommu_irq[i]; + res[1].flags = IORESOURCE_IRQ; + + err = platform_device_add_resources(pdev, res, + ARRAY_SIZE(res)); + if (err) + goto err_out; + err = platform_device_add_data(pdev, &omap3_iommu_pdata[i], + sizeof(omap3_iommu_pdata[0])); + if (err) + goto err_out; + err = platform_device_add(pdev); + if (err) + goto err_out; + omap3_iommu_pdev[i] = pdev; + } + return 0; + +err_out: + while (i--) + platform_device_put(omap3_iommu_pdev[i]); + return err; +} +module_init(omap3_iommu_init); + +static void __exit omap3_iommu_exit(void) +{ + int i; + + for (i = 0; i < NR_IOMMU_DEVICES; i++) + platform_device_unregister(omap3_iommu_pdev[i]); +} +module_exit(omap3_iommu_exit); + +MODULE_AUTHOR("Hiroshi DOYU"); +MODULE_DESCRIPTION("omap iommu: omap3 device registration"); +MODULE_LICENSE("GPL v2"); diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c new file mode 100644 index 00000000000..6cc375a275b --- /dev/null +++ b/arch/arm/mach-omap2/pm-debug.c @@ -0,0 +1,152 @@ +/* + * OMAP Power Management debug routines + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Copyright (C) 2006-2008 Nokia Corporation + * + * Written by: + * Richard Woodruff <r-woodruff2@ti.com> + * Tony Lindgren + * Juha Yrjola + * Amit Kucheria <amit.kucheria@nokia.com> + * Igor Stoppa <igor.stoppa@nokia.com> + * Jouni Hogander + * + * Based on pm.c for omap2 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/timer.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <mach/clock.h> +#include <mach/board.h> + +#include "prm.h" +#include "cm.h" +#include "pm.h" + +int omap2_pm_debug; + +#define DUMP_PRM_MOD_REG(mod, reg) \ + regs[reg_count].name = #mod "." #reg; \ + regs[reg_count++].val = prm_read_mod_reg(mod, reg) +#define DUMP_CM_MOD_REG(mod, reg) \ + regs[reg_count].name = #mod "." #reg; \ + regs[reg_count++].val = cm_read_mod_reg(mod, reg) +#define DUMP_PRM_REG(reg) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(reg) +#define DUMP_CM_REG(reg) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(reg) +#define DUMP_INTC_REG(reg, off) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(IO_ADDRESS(0x480fe000 + (off))) + +void omap2_pm_dump(int mode, int resume, unsigned int us) +{ + struct reg { + const char *name; + u32 val; + } regs[32]; + int reg_count = 0, i; + const char *s1 = NULL, *s2 = NULL; + + if (!resume) { +#if 0 + /* MPU */ + DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET); + DUMP_CM_MOD_REG(MPU_MOD, CM_CLKSTCTRL); + DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTCTRL); + DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTST); + DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP); +#endif +#if 0 + /* INTC */ + DUMP_INTC_REG(INTC_MIR0, 0x0084); + DUMP_INTC_REG(INTC_MIR1, 0x00a4); + DUMP_INTC_REG(INTC_MIR2, 0x00c4); +#endif +#if 0 + DUMP_CM_MOD_REG(CORE_MOD, CM_FCLKEN1); + if (cpu_is_omap24xx()) { + DUMP_CM_MOD_REG(CORE_MOD, OMAP24XX_CM_FCLKEN2); + DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKEMUL_CTRL_OFFSET); + DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKSRC_CTRL_OFFSET); + } + DUMP_CM_MOD_REG(WKUP_MOD, CM_FCLKEN); + DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN1); + DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN2); + DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN); + DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN); + DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE); + DUMP_PRM_MOD_REG(CORE_MOD, PM_PWSTST); +#endif +#if 0 + /* DSP */ + if (cpu_is_omap24xx()) { + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_FCLKEN); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_ICLKEN); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTST); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTST); + } +#endif + } else { + DUMP_PRM_MOD_REG(CORE_MOD, PM_WKST1); + if (cpu_is_omap24xx()) + DUMP_PRM_MOD_REG(CORE_MOD, OMAP24XX_PM_WKST2); + DUMP_PRM_MOD_REG(WKUP_MOD, PM_WKST); + DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); +#if 1 + DUMP_INTC_REG(INTC_PENDING_IRQ0, 0x0098); + DUMP_INTC_REG(INTC_PENDING_IRQ1, 0x00b8); + DUMP_INTC_REG(INTC_PENDING_IRQ2, 0x00d8); +#endif + } + + switch (mode) { + case 0: + s1 = "full"; + s2 = "retention"; + break; + case 1: + s1 = "MPU"; + s2 = "retention"; + break; + case 2: + s1 = "MPU"; + s2 = "idle"; + break; + } + + if (!resume) +#ifdef CONFIG_NO_HZ + printk(KERN_INFO + "--- Going to %s %s (next timer after %u ms)\n", s1, s2, + jiffies_to_msecs(get_next_timer_interrupt(jiffies) - + jiffies)); +#else + printk(KERN_INFO "--- Going to %s %s\n", s1, s2); +#endif + else + printk(KERN_INFO "--- Woke up (slept for %u.%03u ms)\n", + us / 1000, us % 1000); + + for (i = 0; i < reg_count; i++) + printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val); +} diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c deleted file mode 100644 index ea8ceaed09c..00000000000 --- a/arch/arm/mach-omap2/pm.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/pm.c - * - * OMAP2 Power Management Routines - * - * Copyright (C) 2006 Nokia Corporation - * Tony Lindgren <tony@atomide.com> - * - * Copyright (C) 2005 Texas Instruments, Inc. - * Richard Woodruff <r-woodruff2@ti.com> - * - * Based on pm.c for omap1 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/suspend.h> -#include <linux/sched.h> -#include <linux/proc_fs.h> -#include <linux/interrupt.h> -#include <linux/sysfs.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <asm/irq.h> -#include <asm/atomic.h> -#include <asm/mach/time.h> -#include <asm/mach/irq.h> - -#include <mach/irqs.h> -#include <mach/clock.h> -#include <mach/sram.h> -#include <mach/pm.h> - -static struct clk *vclk; -static void (*omap2_sram_idle)(void); -static void (*omap2_sram_suspend)(int dllctrl, int cpu_rev); -static void (*saved_idle)(void); - -extern void __init pmdomain_init(void); -extern void pmdomain_set_autoidle(void); - -static unsigned int omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_SIZE]; - -void omap2_pm_idle(void) -{ - local_irq_disable(); - local_fiq_disable(); - if (need_resched()) { - local_fiq_enable(); - local_irq_enable(); - return; - } - - omap2_sram_idle(); - local_fiq_enable(); - local_irq_enable(); -} - -static int omap2_pm_prepare(void) -{ - /* We cannot sleep in idle until we have resumed */ - saved_idle = pm_idle; - pm_idle = NULL; - return 0; -} - -static int omap2_pm_suspend(void) -{ - return 0; -} - -static int omap2_pm_enter(suspend_state_t state) -{ - int ret = 0; - - switch (state) - { - case PM_SUSPEND_STANDBY: - case PM_SUSPEND_MEM: - ret = omap2_pm_suspend(); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static void omap2_pm_finish(void) -{ - pm_idle = saved_idle; -} - -static struct platform_suspend_ops omap_pm_ops = { - .prepare = omap2_pm_prepare, - .enter = omap2_pm_enter, - .finish = omap2_pm_finish, - .valid = suspend_valid_only_mem, -}; - -static int __init omap2_pm_init(void) -{ - return 0; -} - -__initcall(omap2_pm_init); diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h new file mode 100644 index 00000000000..f7b3baf7667 --- /dev/null +++ b/arch/arm/mach-omap2/pm.h @@ -0,0 +1,38 @@ +/* + * OMAP2/3 Power Management Routines + * + * Copyright (C) 2008 Nokia Corporation + * Jouni Hogander + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PM_H +#define __ARCH_ARM_MACH_OMAP2_PM_H + +extern int omap2_pm_init(void); +extern int omap3_pm_init(void); + +#ifdef CONFIG_PM_DEBUG +extern void omap2_pm_dump(int mode, int resume, unsigned int us); +extern int omap2_pm_debug; +#else +#define omap2_pm_dump(mode, resume, us) do {} while (0); +#define omap2_pm_debug 0 +#endif /* CONFIG_PM_DEBUG */ + +extern void omap24xx_idle_loop_suspend(void); + +extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, + void __iomem *sdrc_power); +extern void omap34xx_cpu_suspend(u32 *addr, int save_state); +extern void save_secure_ram_context(u32 *addr); + +extern unsigned int omap24xx_idle_loop_suspend_sz; +extern unsigned int omap34xx_suspend_sz; +extern unsigned int save_secure_ram_context_sz; +extern unsigned int omap24xx_cpu_suspend_sz; +extern unsigned int omap34xx_cpu_suspend_sz; + +#endif diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c new file mode 100644 index 00000000000..db1025562fb --- /dev/null +++ b/arch/arm/mach-omap2/pm24xx.c @@ -0,0 +1,549 @@ +/* + * OMAP2 Power Management Routines + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Copyright (C) 2006-2008 Nokia Corporation + * + * Written by: + * Richard Woodruff <r-woodruff2@ti.com> + * Tony Lindgren + * Juha Yrjola + * Amit Kucheria <amit.kucheria@nokia.com> + * Igor Stoppa <igor.stoppa@nokia.com> + * + * Based on pm.c for omap1 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/suspend.h> +#include <linux/sched.h> +#include <linux/proc_fs.h> +#include <linux/interrupt.h> +#include <linux/sysfs.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/time.h> +#include <linux/gpio.h> + +#include <asm/mach/time.h> +#include <asm/mach/irq.h> +#include <asm/mach-types.h> + +#include <mach/irqs.h> +#include <mach/clock.h> +#include <mach/sram.h> +#include <mach/control.h> +#include <mach/mux.h> +#include <mach/dma.h> +#include <mach/board.h> + +#include "prm.h" +#include "prm-regbits-24xx.h" +#include "cm.h" +#include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "pm.h" + +#include <mach/powerdomain.h> +#include <mach/clockdomain.h> + +static void (*omap2_sram_idle)(void); +static void (*omap2_sram_suspend)(u32 dllctrl, void __iomem *sdrc_dlla_ctrl, + void __iomem *sdrc_power); + +static struct powerdomain *mpu_pwrdm; +static struct powerdomain *core_pwrdm; + +static struct clockdomain *dsp_clkdm; +static struct clockdomain *gfx_clkdm; + +static struct clk *osc_ck, *emul_ck; + +static int omap2_fclks_active(void) +{ + u32 f1, f2; + + f1 = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + f2 = cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + + /* Ignore UART clocks. These are handled by UART core (serial.c) */ + f1 &= ~(OMAP24XX_EN_UART1 | OMAP24XX_EN_UART2); + f2 &= ~OMAP24XX_EN_UART3; + + if (f1 | f2) + return 1; + return 0; +} + +static void omap2_enter_full_retention(void) +{ + u32 l; + struct timespec ts_preidle, ts_postidle, ts_idle; + + /* There is 1 reference hold for all children of the oscillator + * clock, the following will remove it. If no one else uses the + * oscillator itself it will be disabled if/when we enter retention + * mode. + */ + clk_disable(osc_ck); + + /* Clear old wake-up events */ + /* REVISIT: These write to reserved bits? */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST); + + /* + * Set MPU powerdomain's next power state to RETENTION; + * preserve logic state during retention + */ + pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET); + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET); + + /* Workaround to kill USB */ + l = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0) | OMAP24XX_USBSTANDBYCTRL; + omap_ctrl_writel(l, OMAP2_CONTROL_DEVCONF0); + + omap2_gpio_prepare_for_retention(); + + if (omap2_pm_debug) { + omap2_pm_dump(0, 0, 0); + getnstimeofday(&ts_preidle); + } + + /* One last check for pending IRQs to avoid extra latency due + * to sleeping unnecessarily. */ + if (omap_irq_pending()) + goto no_sleep; + + omap_uart_prepare_idle(0); + omap_uart_prepare_idle(1); + omap_uart_prepare_idle(2); + + /* Jump to SRAM suspend code */ + omap2_sram_suspend(sdrc_read_reg(SDRC_DLLA_CTRL), + OMAP_SDRC_REGADDR(SDRC_DLLA_CTRL), + OMAP_SDRC_REGADDR(SDRC_POWER)); + + omap_uart_resume_idle(2); + omap_uart_resume_idle(1); + omap_uart_resume_idle(0); + +no_sleep: + if (omap2_pm_debug) { + unsigned long long tmp; + + getnstimeofday(&ts_postidle); + ts_idle = timespec_sub(ts_postidle, ts_preidle); + tmp = timespec_to_ns(&ts_idle) * NSEC_PER_USEC; + omap2_pm_dump(0, 1, tmp); + } + omap2_gpio_resume_after_retention(); + + clk_enable(osc_ck); + + /* clear CORE wake-up events */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + + /* wakeup domain events - bit 1: GPT1, bit5 GPIO */ + prm_clear_mod_reg_bits(0x4 | 0x1, WKUP_MOD, PM_WKST); + + /* MPU domain wake events */ + l = prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + if (l & 0x01) + prm_write_mod_reg(0x01, OCP_MOD, + OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + if (l & 0x20) + prm_write_mod_reg(0x20, OCP_MOD, + OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + + /* Mask future PRCM-to-MPU interrupts */ + prm_write_mod_reg(0x0, OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); +} + +static int omap2_i2c_active(void) +{ + u32 l; + + l = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + return l & (OMAP2420_EN_I2C2 | OMAP2420_EN_I2C1); +} + +static int sti_console_enabled; + +static int omap2_allow_mpu_retention(void) +{ + u32 l; + + /* Check for MMC, UART2, UART1, McSPI2, McSPI1 and DSS1. */ + l = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + if (l & (OMAP2420_EN_MMC | OMAP24XX_EN_UART2 | + OMAP24XX_EN_UART1 | OMAP24XX_EN_MCSPI2 | + OMAP24XX_EN_MCSPI1 | OMAP24XX_EN_DSS1)) + return 0; + /* Check for UART3. */ + l = cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + if (l & OMAP24XX_EN_UART3) + return 0; + if (sti_console_enabled) + return 0; + + return 1; +} + +static void omap2_enter_mpu_retention(void) +{ + int only_idle = 0; + struct timespec ts_preidle, ts_postidle, ts_idle; + + /* Putting MPU into the WFI state while a transfer is active + * seems to cause the I2C block to timeout. Why? Good question. */ + if (omap2_i2c_active()) + return; + + /* The peripherals seem not to be able to wake up the MPU when + * it is in retention mode. */ + if (omap2_allow_mpu_retention()) { + /* REVISIT: These write to reserved bits? */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST); + + /* Try to enter MPU retention */ + prm_write_mod_reg((0x01 << OMAP_POWERSTATE_SHIFT) | + OMAP_LOGICRETSTATE, + MPU_MOD, PM_PWSTCTRL); + } else { + /* Block MPU retention */ + + prm_write_mod_reg(OMAP_LOGICRETSTATE, MPU_MOD, PM_PWSTCTRL); + only_idle = 1; + } + + if (omap2_pm_debug) { + omap2_pm_dump(only_idle ? 2 : 1, 0, 0); + getnstimeofday(&ts_preidle); + } + + omap2_sram_idle(); + + if (omap2_pm_debug) { + unsigned long long tmp; + + getnstimeofday(&ts_postidle); + ts_idle = timespec_sub(ts_postidle, ts_preidle); + tmp = timespec_to_ns(&ts_idle) * NSEC_PER_USEC; + omap2_pm_dump(only_idle ? 2 : 1, 1, tmp); + } +} + +static int omap2_can_sleep(void) +{ + if (omap2_fclks_active()) + return 0; + if (osc_ck->usecount > 1) + return 0; + if (omap_dma_running()) + return 0; + + return 1; +} + +static void omap2_pm_idle(void) +{ + local_irq_disable(); + local_fiq_disable(); + + if (!omap2_can_sleep()) { + if (omap_irq_pending()) + goto out; + omap2_enter_mpu_retention(); + goto out; + } + + if (omap_irq_pending()) + goto out; + + omap2_enter_full_retention(); + +out: + local_fiq_enable(); + local_irq_enable(); +} + +static int omap2_pm_prepare(void) +{ + /* We cannot sleep in idle until we have resumed */ + disable_hlt(); + return 0; +} + +static int omap2_pm_suspend(void) +{ + u32 wken_wkup, mir1; + + wken_wkup = prm_read_mod_reg(WKUP_MOD, PM_WKEN); + prm_write_mod_reg(wken_wkup & ~OMAP24XX_EN_GPT1, WKUP_MOD, PM_WKEN); + + /* Mask GPT1 */ + mir1 = omap_readl(0x480fe0a4); + omap_writel(1 << 5, 0x480fe0ac); + + omap_uart_prepare_suspend(); + omap2_enter_full_retention(); + + omap_writel(mir1, 0x480fe0a4); + prm_write_mod_reg(wken_wkup, WKUP_MOD, PM_WKEN); + + return 0; +} + +static int omap2_pm_enter(suspend_state_t state) +{ + int ret = 0; + + switch (state) { + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + ret = omap2_pm_suspend(); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static void omap2_pm_finish(void) +{ + enable_hlt(); +} + +static struct platform_suspend_ops omap_pm_ops = { + .prepare = omap2_pm_prepare, + .enter = omap2_pm_enter, + .finish = omap2_pm_finish, + .valid = suspend_valid_only_mem, +}; + +static int _pm_clkdm_enable_hwsup(struct clockdomain *clkdm) +{ + omap2_clkdm_allow_idle(clkdm); + return 0; +} + +static void __init prcm_setup_regs(void) +{ + int i, num_mem_banks; + struct powerdomain *pwrdm; + + /* Enable autoidle */ + prm_write_mod_reg(OMAP24XX_AUTOIDLE, OCP_MOD, + OMAP2_PRCM_SYSCONFIG_OFFSET); + + /* Set all domain wakeup dependencies */ + prm_write_mod_reg(OMAP_EN_WKUP_MASK, MPU_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP24XX_DSP_MOD, PM_WKDEP); + prm_write_mod_reg(0, GFX_MOD, PM_WKDEP); + prm_write_mod_reg(0, CORE_MOD, PM_WKDEP); + if (cpu_is_omap2430()) + prm_write_mod_reg(0, OMAP2430_MDM_MOD, PM_WKDEP); + + /* + * Set CORE powerdomain memory banks to retain their contents + * during RETENTION + */ + num_mem_banks = pwrdm_get_mem_bank_count(core_pwrdm); + for (i = 0; i < num_mem_banks; i++) + pwrdm_set_mem_retst(core_pwrdm, i, PWRDM_POWER_RET); + + /* Set CORE powerdomain's next power state to RETENTION */ + pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET); + + /* + * Set MPU powerdomain's next power state to RETENTION; + * preserve logic state during retention + */ + pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET); + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET); + + /* Force-power down DSP, GFX powerdomains */ + + pwrdm = clkdm_get_pwrdm(dsp_clkdm); + pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF); + omap2_clkdm_sleep(dsp_clkdm); + + pwrdm = clkdm_get_pwrdm(gfx_clkdm); + pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF); + omap2_clkdm_sleep(gfx_clkdm); + + /* Enable clockdomain hardware-supervised control for all clkdms */ + clkdm_for_each(_pm_clkdm_enable_hwsup); + + /* Enable clock autoidle for all domains */ + cm_write_mod_reg(OMAP24XX_AUTO_CAM | + OMAP24XX_AUTO_MAILBOXES | + OMAP24XX_AUTO_WDT4 | + OMAP2420_AUTO_WDT3 | + OMAP24XX_AUTO_MSPRO | + OMAP2420_AUTO_MMC | + OMAP24XX_AUTO_FAC | + OMAP2420_AUTO_EAC | + OMAP24XX_AUTO_HDQ | + OMAP24XX_AUTO_UART2 | + OMAP24XX_AUTO_UART1 | + OMAP24XX_AUTO_I2C2 | + OMAP24XX_AUTO_I2C1 | + OMAP24XX_AUTO_MCSPI2 | + OMAP24XX_AUTO_MCSPI1 | + OMAP24XX_AUTO_MCBSP2 | + OMAP24XX_AUTO_MCBSP1 | + OMAP24XX_AUTO_GPT12 | + OMAP24XX_AUTO_GPT11 | + OMAP24XX_AUTO_GPT10 | + OMAP24XX_AUTO_GPT9 | + OMAP24XX_AUTO_GPT8 | + OMAP24XX_AUTO_GPT7 | + OMAP24XX_AUTO_GPT6 | + OMAP24XX_AUTO_GPT5 | + OMAP24XX_AUTO_GPT4 | + OMAP24XX_AUTO_GPT3 | + OMAP24XX_AUTO_GPT2 | + OMAP2420_AUTO_VLYNQ | + OMAP24XX_AUTO_DSS, + CORE_MOD, CM_AUTOIDLE1); + cm_write_mod_reg(OMAP24XX_AUTO_UART3 | + OMAP24XX_AUTO_SSI | + OMAP24XX_AUTO_USB, + CORE_MOD, CM_AUTOIDLE2); + cm_write_mod_reg(OMAP24XX_AUTO_SDRC | + OMAP24XX_AUTO_GPMC | + OMAP24XX_AUTO_SDMA, + CORE_MOD, CM_AUTOIDLE3); + cm_write_mod_reg(OMAP24XX_AUTO_PKA | + OMAP24XX_AUTO_AES | + OMAP24XX_AUTO_RNG | + OMAP24XX_AUTO_SHA | + OMAP24XX_AUTO_DES, + CORE_MOD, OMAP24XX_CM_AUTOIDLE4); + + cm_write_mod_reg(OMAP2420_AUTO_DSP_IPI, OMAP24XX_DSP_MOD, CM_AUTOIDLE); + + /* Put DPLL and both APLLs into autoidle mode */ + cm_write_mod_reg((0x03 << OMAP24XX_AUTO_DPLL_SHIFT) | + (0x03 << OMAP24XX_AUTO_96M_SHIFT) | + (0x03 << OMAP24XX_AUTO_54M_SHIFT), + PLL_MOD, CM_AUTOIDLE); + + cm_write_mod_reg(OMAP24XX_AUTO_OMAPCTRL | + OMAP24XX_AUTO_WDT1 | + OMAP24XX_AUTO_MPU_WDT | + OMAP24XX_AUTO_GPIOS | + OMAP24XX_AUTO_32KSYNC | + OMAP24XX_AUTO_GPT1, + WKUP_MOD, CM_AUTOIDLE); + + /* REVISIT: Configure number of 32 kHz clock cycles for sys_clk + * stabilisation */ + prm_write_mod_reg(15 << OMAP_SETUP_TIME_SHIFT, OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKSSETUP_OFFSET); + + /* Configure automatic voltage transition */ + prm_write_mod_reg(2 << OMAP_SETUP_TIME_SHIFT, OMAP24XX_GR_MOD, + OMAP2_PRCM_VOLTSETUP_OFFSET); + prm_write_mod_reg(OMAP24XX_AUTO_EXTVOLT | + (0x1 << OMAP24XX_SETOFF_LEVEL_SHIFT) | + OMAP24XX_MEMRETCTRL | + (0x1 << OMAP24XX_SETRET_LEVEL_SHIFT) | + (0x0 << OMAP24XX_VOLT_LEVEL_SHIFT), + OMAP24XX_GR_MOD, OMAP2_PRCM_VOLTCTRL_OFFSET); + + /* Enable wake-up events */ + prm_write_mod_reg(OMAP24XX_EN_GPIOS | OMAP24XX_EN_GPT1, + WKUP_MOD, PM_WKEN); +} + +int __init omap2_pm_init(void) +{ + u32 l; + + if (!cpu_is_omap24xx()) + return -ENODEV; + + printk(KERN_INFO "Power Management for OMAP2 initializing\n"); + l = prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET); + printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); + + /* Look up important powerdomains, clockdomains */ + + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + if (!mpu_pwrdm) + pr_err("PM: mpu_pwrdm not found\n"); + + core_pwrdm = pwrdm_lookup("core_pwrdm"); + if (!core_pwrdm) + pr_err("PM: core_pwrdm not found\n"); + + dsp_clkdm = clkdm_lookup("dsp_clkdm"); + if (!dsp_clkdm) + pr_err("PM: mpu_clkdm not found\n"); + + gfx_clkdm = clkdm_lookup("gfx_clkdm"); + if (!gfx_clkdm) + pr_err("PM: gfx_clkdm not found\n"); + + + osc_ck = clk_get(NULL, "osc_ck"); + if (IS_ERR(osc_ck)) { + printk(KERN_ERR "could not get osc_ck\n"); + return -ENODEV; + } + + if (cpu_is_omap242x()) { + emul_ck = clk_get(NULL, "emul_ck"); + if (IS_ERR(emul_ck)) { + printk(KERN_ERR "could not get emul_ck\n"); + clk_put(osc_ck); + return -ENODEV; + } + } + + prcm_setup_regs(); + + /* Hack to prevent MPU retention when STI console is enabled. */ + { + const struct omap_sti_console_config *sti; + + sti = omap_get_config(OMAP_TAG_STI_CONSOLE, + struct omap_sti_console_config); + if (sti != NULL && sti->enable) + sti_console_enabled = 1; + } + + /* + * We copy the assembler sleep/wakeup routines to SRAM. + * These routines need to be in SRAM as that's the only + * memory the MPU can see when it wakes up. + */ + if (cpu_is_omap24xx()) { + omap2_sram_idle = omap_sram_push(omap24xx_idle_loop_suspend, + omap24xx_idle_loop_suspend_sz); + + omap2_sram_suspend = omap_sram_push(omap24xx_cpu_suspend, + omap24xx_cpu_suspend_sz); + } + + suspend_set_ops(&omap_pm_ops); + pm_idle = omap2_pm_idle; + + return 0; +} + +late_initcall(omap2_pm_init); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c new file mode 100644 index 00000000000..841d4c5ed8b --- /dev/null +++ b/arch/arm/mach-omap2/pm34xx.c @@ -0,0 +1,710 @@ +/* + * OMAP3 Power Management Routines + * + * Copyright (C) 2006-2008 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * Jouni Hogander + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Richard Woodruff <r-woodruff2@ti.com> + * + * Based on pm.c for omap1 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/err.h> +#include <linux/gpio.h> + +#include <mach/sram.h> +#include <mach/clockdomain.h> +#include <mach/powerdomain.h> +#include <mach/control.h> +#include <mach/serial.h> + +#include "cm.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" + +#include "prm.h" +#include "pm.h" + +struct power_state { + struct powerdomain *pwrdm; + u32 next_state; + u32 saved_state; + struct list_head node; +}; + +static LIST_HEAD(pwrst_list); + +static void (*_omap_sram_idle)(u32 *addr, int save_state); + +static struct powerdomain *mpu_pwrdm; + +/* PRCM Interrupt Handler for wakeups */ +static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id) +{ + u32 wkst, irqstatus_mpu; + u32 fclk, iclk; + + /* WKUP */ + wkst = prm_read_mod_reg(WKUP_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(WKUP_MOD, CM_ICLKEN); + fclk = cm_read_mod_reg(WKUP_MOD, CM_FCLKEN); + cm_set_mod_reg_bits(wkst, WKUP_MOD, CM_ICLKEN); + cm_set_mod_reg_bits(wkst, WKUP_MOD, CM_FCLKEN); + prm_write_mod_reg(wkst, WKUP_MOD, PM_WKST); + while (prm_read_mod_reg(WKUP_MOD, PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, WKUP_MOD, CM_ICLKEN); + cm_write_mod_reg(fclk, WKUP_MOD, CM_FCLKEN); + } + + /* CORE */ + wkst = prm_read_mod_reg(CORE_MOD, PM_WKST1); + if (wkst) { + iclk = cm_read_mod_reg(CORE_MOD, CM_ICLKEN1); + fclk = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_ICLKEN1); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_FCLKEN1); + prm_write_mod_reg(wkst, CORE_MOD, PM_WKST1); + while (prm_read_mod_reg(CORE_MOD, PM_WKST1)) + cpu_relax(); + cm_write_mod_reg(iclk, CORE_MOD, CM_ICLKEN1); + cm_write_mod_reg(fclk, CORE_MOD, CM_FCLKEN1); + } + wkst = prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_WKST3); + if (wkst) { + iclk = cm_read_mod_reg(CORE_MOD, CM_ICLKEN3); + fclk = cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_ICLKEN3); + cm_set_mod_reg_bits(wkst, CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + prm_write_mod_reg(wkst, CORE_MOD, OMAP3430ES2_PM_WKST3); + while (prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_WKST3)) + cpu_relax(); + cm_write_mod_reg(iclk, CORE_MOD, CM_ICLKEN3); + cm_write_mod_reg(fclk, CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + } + + /* PER */ + wkst = prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN); + fclk = cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430_PER_MOD, CM_ICLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430_PER_MOD, CM_FCLKEN); + prm_write_mod_reg(wkst, OMAP3430_PER_MOD, PM_WKST); + while (prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, OMAP3430_PER_MOD, CM_ICLKEN); + cm_write_mod_reg(fclk, OMAP3430_PER_MOD, CM_FCLKEN); + } + + if (omap_rev() > OMAP3430_REV_ES1_0) { + /* USBHOST */ + wkst = prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + fclk = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + prm_write_mod_reg(wkst, OMAP3430ES2_USBHOST_MOD, + PM_WKST); + while (prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + cm_write_mod_reg(fclk, OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + } + } + + irqstatus_mpu = prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + prm_write_mod_reg(irqstatus_mpu, OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + while (prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET)) + cpu_relax(); + + return IRQ_HANDLED; +} + +static void omap_sram_idle(void) +{ + /* Variable to tell what needs to be saved and restored + * in omap_sram_idle*/ + /* save_state = 0 => Nothing to save and restored */ + /* save_state = 1 => Only L1 and logic lost */ + /* save_state = 2 => Only L2 lost */ + /* save_state = 3 => L1, L2 and logic lost */ + int save_state = 0, mpu_next_state; + + if (!_omap_sram_idle) + return; + + mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + switch (mpu_next_state) { + case PWRDM_POWER_RET: + /* No need to save context */ + save_state = 0; + break; + default: + /* Invalid state */ + printk(KERN_ERR "Invalid mpu state in sram_idle\n"); + return; + } + omap2_gpio_prepare_for_retention(); + omap_uart_prepare_idle(0); + omap_uart_prepare_idle(1); + omap_uart_prepare_idle(2); + + _omap_sram_idle(NULL, save_state); + cpu_init(); + + omap_uart_resume_idle(2); + omap_uart_resume_idle(1); + omap_uart_resume_idle(0); + omap2_gpio_resume_after_retention(); +} + +/* + * Check if functional clocks are enabled before entering + * sleep. This function could be behind CONFIG_PM_DEBUG + * when all drivers are configuring their sysconfig registers + * properly and using their clocks properly. + */ +static int omap3_fclks_active(void) +{ + u32 fck_core1 = 0, fck_core3 = 0, fck_sgx = 0, fck_dss = 0, + fck_cam = 0, fck_per = 0, fck_usbhost = 0; + + fck_core1 = cm_read_mod_reg(CORE_MOD, + CM_FCLKEN1); + if (omap_rev() > OMAP3430_REV_ES1_0) { + fck_core3 = cm_read_mod_reg(CORE_MOD, + OMAP3430ES2_CM_FCLKEN3); + fck_sgx = cm_read_mod_reg(OMAP3430ES2_SGX_MOD, + CM_FCLKEN); + fck_usbhost = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + } else + fck_sgx = cm_read_mod_reg(GFX_MOD, + OMAP3430ES2_CM_FCLKEN3); + fck_dss = cm_read_mod_reg(OMAP3430_DSS_MOD, + CM_FCLKEN); + fck_cam = cm_read_mod_reg(OMAP3430_CAM_MOD, + CM_FCLKEN); + fck_per = cm_read_mod_reg(OMAP3430_PER_MOD, + CM_FCLKEN); + + /* Ignore UART clocks. These are handled by UART core (serial.c) */ + fck_core1 &= ~(OMAP3430_EN_UART1 | OMAP3430_EN_UART2); + fck_per &= ~OMAP3430_EN_UART3; + + if (fck_core1 | fck_core3 | fck_sgx | fck_dss | + fck_cam | fck_per | fck_usbhost) + return 1; + return 0; +} + +static int omap3_can_sleep(void) +{ + if (!omap_uart_can_sleep()) + return 0; + if (omap3_fclks_active()) + return 0; + return 1; +} + +/* This sets pwrdm state (other than mpu & core. Currently only ON & + * RET are supported. Function is assuming that clkdm doesn't have + * hw_sup mode enabled. */ +static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) +{ + u32 cur_state; + int sleep_switch = 0; + int ret = 0; + + if (pwrdm == NULL || IS_ERR(pwrdm)) + return -EINVAL; + + while (!(pwrdm->pwrsts & (1 << state))) { + if (state == PWRDM_POWER_OFF) + return ret; + state--; + } + + cur_state = pwrdm_read_next_pwrst(pwrdm); + if (cur_state == state) + return ret; + + if (pwrdm_read_pwrst(pwrdm) < PWRDM_POWER_ON) { + omap2_clkdm_wakeup(pwrdm->pwrdm_clkdms[0]); + sleep_switch = 1; + pwrdm_wait_transition(pwrdm); + } + + ret = pwrdm_set_next_pwrst(pwrdm, state); + if (ret) { + printk(KERN_ERR "Unable to set state of powerdomain: %s\n", + pwrdm->name); + goto err; + } + + if (sleep_switch) { + omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]); + pwrdm_wait_transition(pwrdm); + } + +err: + return ret; +} + +static void omap3_pm_idle(void) +{ + local_irq_disable(); + local_fiq_disable(); + + if (!omap3_can_sleep()) + goto out; + + if (omap_irq_pending()) + goto out; + + omap_sram_idle(); + +out: + local_fiq_enable(); + local_irq_enable(); +} + +static int omap3_pm_prepare(void) +{ + disable_hlt(); + return 0; +} + +static int omap3_pm_suspend(void) +{ + struct power_state *pwrst; + int state, ret = 0; + + /* Read current next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) + pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); + /* Set ones wanted by suspend */ + list_for_each_entry(pwrst, &pwrst_list, node) { + if (set_pwrdm_state(pwrst->pwrdm, pwrst->next_state)) + goto restore; + if (pwrdm_clear_all_prev_pwrst(pwrst->pwrdm)) + goto restore; + } + + omap_uart_prepare_suspend(); + omap_sram_idle(); + +restore: + /* Restore next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) { + set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); + state = pwrdm_read_prev_pwrst(pwrst->pwrdm); + if (state > pwrst->next_state) { + printk(KERN_INFO "Powerdomain (%s) didn't enter " + "target state %d\n", + pwrst->pwrdm->name, pwrst->next_state); + ret = -1; + } + } + if (ret) + printk(KERN_ERR "Could not enter target state in pm_suspend\n"); + else + printk(KERN_INFO "Successfully put all powerdomains " + "to target state\n"); + + return ret; +} + +static int omap3_pm_enter(suspend_state_t state) +{ + int ret = 0; + + switch (state) { + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + ret = omap3_pm_suspend(); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static void omap3_pm_finish(void) +{ + enable_hlt(); +} + +static struct platform_suspend_ops omap_pm_ops = { + .prepare = omap3_pm_prepare, + .enter = omap3_pm_enter, + .finish = omap3_pm_finish, + .valid = suspend_valid_only_mem, +}; + + +/** + * omap3_iva_idle(): ensure IVA is in idle so it can be put into + * retention + * + * In cases where IVA2 is activated by bootcode, it may prevent + * full-chip retention or off-mode because it is not idle. This + * function forces the IVA2 into idle state so it can go + * into retention/off and thus allow full-chip retention/off. + * + **/ +static void __init omap3_iva_idle(void) +{ + /* ensure IVA2 clock is disabled */ + cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* if no clock activity, nothing else to do */ + if (!(cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKSTST) & + OMAP3430_CLKACTIVITY_IVA2_MASK)) + return; + + /* Reset IVA2 */ + prm_write_mod_reg(OMAP3430_RST1_IVA2 | + OMAP3430_RST2_IVA2 | + OMAP3430_RST3_IVA2, + OMAP3430_IVA2_MOD, RM_RSTCTRL); + + /* Enable IVA2 clock */ + cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2, + OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* Set IVA2 boot mode to 'idle' */ + omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE, + OMAP343X_CONTROL_IVA2_BOOTMOD); + + /* Un-reset IVA2 */ + prm_write_mod_reg(0, OMAP3430_IVA2_MOD, RM_RSTCTRL); + + /* Disable IVA2 clock */ + cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN); + + /* Reset IVA2 */ + prm_write_mod_reg(OMAP3430_RST1_IVA2 | + OMAP3430_RST2_IVA2 | + OMAP3430_RST3_IVA2, + OMAP3430_IVA2_MOD, RM_RSTCTRL); +} + +static void __init omap3_d2d_idle(void) +{ + u16 mask, padconf; + + /* In a stand alone OMAP3430 where there is not a stacked + * modem for the D2D Idle Ack and D2D MStandby must be pulled + * high. S CONTROL_PADCONF_SAD2D_IDLEACK and + * CONTROL_PADCONF_SAD2D_MSTDBY to have a pull up. */ + mask = (1 << 4) | (1 << 3); /* pull-up, enabled */ + padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_MSTANDBY); + padconf |= mask; + omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_MSTANDBY); + + padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_IDLEACK); + padconf |= mask; + omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK); + + /* reset modem */ + prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON | + OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST, + CORE_MOD, RM_RSTCTRL); + prm_write_mod_reg(0, CORE_MOD, RM_RSTCTRL); +} + +static void __init prcm_setup_regs(void) +{ + /* XXX Reset all wkdeps. This should be done when initializing + * powerdomains */ + prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP); + prm_write_mod_reg(0, MPU_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP); + if (omap_rev() > OMAP3430_REV_ES1_0) { + prm_write_mod_reg(0, OMAP3430ES2_SGX_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430ES2_USBHOST_MOD, PM_WKDEP); + } else + prm_write_mod_reg(0, GFX_MOD, PM_WKDEP); + + /* + * Enable interface clock autoidle for all modules. + * Note that in the long run this should be done by clockfw + */ + cm_write_mod_reg( + OMAP3430_AUTO_MODEM | + OMAP3430ES2_AUTO_MMC3 | + OMAP3430ES2_AUTO_ICR | + OMAP3430_AUTO_AES2 | + OMAP3430_AUTO_SHA12 | + OMAP3430_AUTO_DES2 | + OMAP3430_AUTO_MMC2 | + OMAP3430_AUTO_MMC1 | + OMAP3430_AUTO_MSPRO | + OMAP3430_AUTO_HDQ | + OMAP3430_AUTO_MCSPI4 | + OMAP3430_AUTO_MCSPI3 | + OMAP3430_AUTO_MCSPI2 | + OMAP3430_AUTO_MCSPI1 | + OMAP3430_AUTO_I2C3 | + OMAP3430_AUTO_I2C2 | + OMAP3430_AUTO_I2C1 | + OMAP3430_AUTO_UART2 | + OMAP3430_AUTO_UART1 | + OMAP3430_AUTO_GPT11 | + OMAP3430_AUTO_GPT10 | + OMAP3430_AUTO_MCBSP5 | + OMAP3430_AUTO_MCBSP1 | + OMAP3430ES1_AUTO_FAC | /* This is es1 only */ + OMAP3430_AUTO_MAILBOXES | + OMAP3430_AUTO_OMAPCTRL | + OMAP3430ES1_AUTO_FSHOSTUSB | + OMAP3430_AUTO_HSOTGUSB | + OMAP3430_AUTO_SAD2D | + OMAP3430_AUTO_SSI, + CORE_MOD, CM_AUTOIDLE1); + + cm_write_mod_reg( + OMAP3430_AUTO_PKA | + OMAP3430_AUTO_AES1 | + OMAP3430_AUTO_RNG | + OMAP3430_AUTO_SHA11 | + OMAP3430_AUTO_DES1, + CORE_MOD, CM_AUTOIDLE2); + + if (omap_rev() > OMAP3430_REV_ES1_0) { + cm_write_mod_reg( + OMAP3430_AUTO_MAD2D | + OMAP3430ES2_AUTO_USBTLL, + CORE_MOD, CM_AUTOIDLE3); + } + + cm_write_mod_reg( + OMAP3430_AUTO_WDT2 | + OMAP3430_AUTO_WDT1 | + OMAP3430_AUTO_GPIO1 | + OMAP3430_AUTO_32KSYNC | + OMAP3430_AUTO_GPT12 | + OMAP3430_AUTO_GPT1 , + WKUP_MOD, CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_DSS, + OMAP3430_DSS_MOD, + CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_CAM, + OMAP3430_CAM_MOD, + CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_GPIO6 | + OMAP3430_AUTO_GPIO5 | + OMAP3430_AUTO_GPIO4 | + OMAP3430_AUTO_GPIO3 | + OMAP3430_AUTO_GPIO2 | + OMAP3430_AUTO_WDT3 | + OMAP3430_AUTO_UART3 | + OMAP3430_AUTO_GPT9 | + OMAP3430_AUTO_GPT8 | + OMAP3430_AUTO_GPT7 | + OMAP3430_AUTO_GPT6 | + OMAP3430_AUTO_GPT5 | + OMAP3430_AUTO_GPT4 | + OMAP3430_AUTO_GPT3 | + OMAP3430_AUTO_GPT2 | + OMAP3430_AUTO_MCBSP4 | + OMAP3430_AUTO_MCBSP3 | + OMAP3430_AUTO_MCBSP2, + OMAP3430_PER_MOD, + CM_AUTOIDLE); + + if (omap_rev() > OMAP3430_REV_ES1_0) { + cm_write_mod_reg( + OMAP3430ES2_AUTO_USBHOST, + OMAP3430ES2_USBHOST_MOD, + CM_AUTOIDLE); + } + + /* + * Set all plls to autoidle. This is needed until autoidle is + * enabled by clockfw + */ + cm_write_mod_reg(1 << OMAP3430_AUTO_IVA2_DPLL_SHIFT, + OMAP3430_IVA2_MOD, CM_AUTOIDLE2); + cm_write_mod_reg(1 << OMAP3430_AUTO_MPU_DPLL_SHIFT, + MPU_MOD, + CM_AUTOIDLE2); + cm_write_mod_reg((1 << OMAP3430_AUTO_PERIPH_DPLL_SHIFT) | + (1 << OMAP3430_AUTO_CORE_DPLL_SHIFT), + PLL_MOD, + CM_AUTOIDLE); + cm_write_mod_reg(1 << OMAP3430ES2_AUTO_PERIPH2_DPLL_SHIFT, + PLL_MOD, + CM_AUTOIDLE2); + + /* + * Enable control of expternal oscillator through + * sys_clkreq. In the long run clock framework should + * take care of this. + */ + prm_rmw_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK, + 1 << OMAP_AUTOEXTCLKMODE_SHIFT, + OMAP3430_GR_MOD, + OMAP3_PRM_CLKSRC_CTRL_OFFSET); + + /* setup wakup source */ + prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 | + OMAP3430_EN_GPT1 | OMAP3430_EN_GPT12, + WKUP_MOD, PM_WKEN); + /* No need to write EN_IO, that is always enabled */ + prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1 | + OMAP3430_EN_GPT12, + WKUP_MOD, OMAP3430_PM_MPUGRPSEL); + /* For some reason IO doesn't generate wakeup event even if + * it is selected to mpu wakeup goup */ + prm_write_mod_reg(OMAP3430_IO_EN | OMAP3430_WKUP_EN, + OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + + /* Don't attach IVA interrupts */ + prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL); + prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1); + prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3); + prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL); + + /* Clear any pending 'reset' flags */ + prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST); + prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST); + + /* Clear any pending PRCM interrupts */ + prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + omap3_iva_idle(); + omap3_d2d_idle(); +} + +static int __init pwrdms_setup(struct powerdomain *pwrdm) +{ + struct power_state *pwrst; + + if (!pwrdm->pwrsts) + return 0; + + pwrst = kmalloc(sizeof(struct power_state), GFP_KERNEL); + if (!pwrst) + return -ENOMEM; + pwrst->pwrdm = pwrdm; + pwrst->next_state = PWRDM_POWER_RET; + list_add(&pwrst->node, &pwrst_list); + + if (pwrdm_has_hdwr_sar(pwrdm)) + pwrdm_enable_hdwr_sar(pwrdm); + + return set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); +} + +/* + * Enable hw supervised mode for all clockdomains if it's + * supported. Initiate sleep transition for other clockdomains, if + * they are not used + */ +static int __init clkdms_setup(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO) + omap2_clkdm_allow_idle(clkdm); + else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP && + atomic_read(&clkdm->usecount) == 0) + omap2_clkdm_sleep(clkdm); + return 0; +} + +int __init omap3_pm_init(void) +{ + struct power_state *pwrst, *tmp; + int ret; + + if (!cpu_is_omap34xx()) + return -ENODEV; + + printk(KERN_ERR "Power Management for TI OMAP3.\n"); + + /* XXX prcm_setup_regs needs to be before enabling hw + * supervised mode for powerdomains */ + prcm_setup_regs(); + + ret = request_irq(INT_34XX_PRCM_MPU_IRQ, + (irq_handler_t)prcm_interrupt_handler, + IRQF_DISABLED, "prcm", NULL); + if (ret) { + printk(KERN_ERR "request_irq failed to register for 0x%x\n", + INT_34XX_PRCM_MPU_IRQ); + goto err1; + } + + ret = pwrdm_for_each(pwrdms_setup); + if (ret) { + printk(KERN_ERR "Failed to setup powerdomains\n"); + goto err2; + } + + (void) clkdm_for_each(clkdms_setup); + + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + if (mpu_pwrdm == NULL) { + printk(KERN_ERR "Failed to get mpu_pwrdm\n"); + goto err2; + } + + _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend, + omap34xx_cpu_suspend_sz); + + suspend_set_ops(&omap_pm_ops); + + pm_idle = omap3_pm_idle; + +err1: + return ret; +err2: + free_irq(INT_34XX_PRCM_MPU_IRQ, NULL); + list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) { + list_del(&pwrst->node); + kfree(pwrst); + } + return ret; +} + +late_initcall(omap3_pm_init); diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 812d50ee495..cb1ae84e092 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -276,6 +276,8 @@ /* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */ #define OMAP3430_EN_GPIO1 (1 << 3) #define OMAP3430_EN_GPIO1_SHIFT 3 +#define OMAP3430_EN_GPT12 (1 << 1) +#define OMAP3430_EN_GPT12_SHIFT 1 #define OMAP3430_EN_GPT1 (1 << 0) #define OMAP3430_EN_GPT1_SHIFT 0 diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h index 826d326b806..9937e281469 100644 --- a/arch/arm/mach-omap2/prm.h +++ b/arch/arm/mach-omap2/prm.h @@ -16,17 +16,12 @@ #include "prcm-common.h" -#ifndef __ASSEMBLER__ -#define OMAP_PRM_REGADDR(module, reg) \ - IO_ADDRESS(OMAP2_PRM_BASE + (module) + (reg)) -#else #define OMAP2420_PRM_REGADDR(module, reg) \ IO_ADDRESS(OMAP2420_PRM_BASE + (module) + (reg)) #define OMAP2430_PRM_REGADDR(module, reg) \ IO_ADDRESS(OMAP2430_PRM_BASE + (module) + (reg)) #define OMAP34XX_PRM_REGADDR(module, reg) \ IO_ADDRESS(OMAP3430_PRM_BASE + (module) + (reg)) -#endif /* * Architecture-specific global PRM registers @@ -38,80 +33,132 @@ * */ -/* Global 24xx registers in GR_MOD (Same as OCP_MOD for 24xx) */ -#define OMAP24XX_PRCM_VOLTCTRL_OFFSET 0x0050 -#define OMAP24XX_PRCM_CLKCFG_CTRL_OFFSET 0x0080 - -/* 242x GR_MOD registers, use these only for assembly code */ -#define OMAP242X_PRCM_VOLTCTRL OMAP2420_PRM_REGADDR(OMAP24XX_GR_MOD, \ - OMAP24XX_PRCM_VOLTCTRL_OFFSET) -#define OMAP242X_PRCM_CLKCFG_CTRL OMAP2420_PRM_REGADDR(OMAP24XX_GR_MOD, \ - OMAP24XX_PRCM_CLKCFG_CTRL_OFFSET) - -/* 243x GR_MOD registers, use these only for assembly code */ -#define OMAP243X_PRCM_VOLTCTRL OMAP2430_PRM_REGADDR(OMAP24XX_GR_MOD, \ - OMAP24XX_PRCM_VOLTCTRL_OFFSET) -#define OMAP243X_PRCM_CLKCFG_CTRL OMAP2430_PRM_REGADDR(OMAP24XX_GR_MOD, \ - OMAP24XX_PRCM_CLKCFG_CTRL_OFFSET) - -/* These will disappear */ -#define OMAP24XX_PRCM_REVISION OMAP_PRM_REGADDR(OCP_MOD, 0x0000) -#define OMAP24XX_PRCM_SYSCONFIG OMAP_PRM_REGADDR(OCP_MOD, 0x0010) - -#define OMAP24XX_PRCM_IRQSTATUS_MPU OMAP_PRM_REGADDR(OCP_MOD, 0x0018) -#define OMAP24XX_PRCM_IRQENABLE_MPU OMAP_PRM_REGADDR(OCP_MOD, 0x001c) - -#define OMAP24XX_PRCM_VOLTST OMAP_PRM_REGADDR(OCP_MOD, 0x0054) -#define OMAP24XX_PRCM_CLKSRC_CTRL OMAP_PRM_REGADDR(OCP_MOD, 0x0060) -#define OMAP24XX_PRCM_CLKOUT_CTRL OMAP_PRM_REGADDR(OCP_MOD, 0x0070) -#define OMAP24XX_PRCM_CLKEMUL_CTRL OMAP_PRM_REGADDR(OCP_MOD, 0x0078) -#define OMAP24XX_PRCM_CLKCFG_CTRL OMAP_PRM_REGADDR(OCP_MOD, 0x0080) -#define OMAP24XX_PRCM_CLKCFG_STATUS OMAP_PRM_REGADDR(OCP_MOD, 0x0084) -#define OMAP24XX_PRCM_VOLTSETUP OMAP_PRM_REGADDR(OCP_MOD, 0x0090) -#define OMAP24XX_PRCM_CLKSSETUP OMAP_PRM_REGADDR(OCP_MOD, 0x0094) -#define OMAP24XX_PRCM_POLCTRL OMAP_PRM_REGADDR(OCP_MOD, 0x0098) - -#define OMAP3430_PRM_REVISION OMAP_PRM_REGADDR(OCP_MOD, 0x0004) -#define OMAP3430_PRM_SYSCONFIG OMAP_PRM_REGADDR(OCP_MOD, 0x0014) - -#define OMAP3430_PRM_IRQSTATUS_MPU OMAP_PRM_REGADDR(OCP_MOD, 0x0018) -#define OMAP3430_PRM_IRQENABLE_MPU OMAP_PRM_REGADDR(OCP_MOD, 0x001c) - - -#define OMAP3430_PRM_VC_SMPS_SA OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020) -#define OMAP3430_PRM_VC_SMPS_VOL_RA OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024) -#define OMAP3430_PRM_VC_SMPS_CMD_RA OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028) -#define OMAP3430_PRM_VC_CMD_VAL_0 OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c) -#define OMAP3430_PRM_VC_CMD_VAL_1 OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030) -#define OMAP3430_PRM_VC_CH_CONF OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034) -#define OMAP3430_PRM_VC_I2C_CFG OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038) -#define OMAP3430_PRM_VC_BYPASS_VAL OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c) -#define OMAP3430_PRM_RSTCTRL OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050) -#define OMAP3430_PRM_RSTTIME OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054) -#define OMAP3430_PRM_RSTST OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058) -#define OMAP3430_PRM_VOLTCTRL OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060) -#define OMAP3430_PRM_SRAM_PCHARGE OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064) -#define OMAP3430_PRM_CLKSRC_CTRL OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070) -#define OMAP3430_PRM_VOLTSETUP1 OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090) -#define OMAP3430_PRM_VOLTOFFSET OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094) -#define OMAP3430_PRM_CLKSETUP OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098) -#define OMAP3430_PRM_POLCTRL OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c) -#define OMAP3430_PRM_VOLTSETUP2 OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0) -#define OMAP3430_PRM_VP1_CONFIG OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0) -#define OMAP3430_PRM_VP1_VSTEPMIN OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4) -#define OMAP3430_PRM_VP1_VSTEPMAX OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8) -#define OMAP3430_PRM_VP1_VLIMITTO OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc) -#define OMAP3430_PRM_VP1_VOLTAGE OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0) -#define OMAP3430_PRM_VP1_STATUS OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4) -#define OMAP3430_PRM_VP2_CONFIG OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0) -#define OMAP3430_PRM_VP2_VSTEPMIN OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4) -#define OMAP3430_PRM_VP2_VSTEPMAX OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8) -#define OMAP3430_PRM_VP2_VLIMITTO OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc) -#define OMAP3430_PRM_VP2_VOLTAGE OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0) -#define OMAP3430_PRM_VP2_STATUS OMAP_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4) - -#define OMAP3430_PRM_CLKSEL OMAP_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040) -#define OMAP3430_PRM_CLKOUT_CTRL OMAP_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070) +#define OMAP2_PRCM_REVISION_OFFSET 0x0000 +#define OMAP2420_PRCM_REVISION OMAP2420_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2_PRCM_SYSCONFIG_OFFSET 0x0010 +#define OMAP2420_PRCM_SYSCONFIG OMAP2420_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2_PRCM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP2420_PRCM_IRQSTATUS_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2_PRCM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP2420_PRCM_IRQENABLE_MPU OMAP2420_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2_PRCM_VOLTCTRL_OFFSET 0x0050 +#define OMAP2420_PRCM_VOLTCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2_PRCM_VOLTST_OFFSET 0x0054 +#define OMAP2420_PRCM_VOLTST OMAP2420_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2_PRCM_CLKSRC_CTRL_OFFSET 0x0060 +#define OMAP2420_PRCM_CLKSRC_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2_PRCM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP2420_PRCM_CLKOUT_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2_PRCM_CLKEMUL_CTRL_OFFSET 0x0078 +#define OMAP2420_PRCM_CLKEMUL_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2_PRCM_CLKCFG_CTRL_OFFSET 0x0080 +#define OMAP2420_PRCM_CLKCFG_CTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2_PRCM_CLKCFG_STATUS_OFFSET 0x0084 +#define OMAP2420_PRCM_CLKCFG_STATUS OMAP2420_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2_PRCM_VOLTSETUP_OFFSET 0x0090 +#define OMAP2420_PRCM_VOLTSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2_PRCM_CLKSSETUP_OFFSET 0x0094 +#define OMAP2420_PRCM_CLKSSETUP OMAP2420_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2_PRCM_POLCTRL_OFFSET 0x0098 +#define OMAP2420_PRCM_POLCTRL OMAP2420_PRM_REGADDR(OCP_MOD, 0x0098) + +#define OMAP2430_PRCM_REVISION OMAP2430_PRM_REGADDR(OCP_MOD, 0x0000) +#define OMAP2430_PRCM_SYSCONFIG OMAP2430_PRM_REGADDR(OCP_MOD, 0x0010) + +#define OMAP2430_PRCM_IRQSTATUS_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP2430_PRCM_IRQENABLE_MPU OMAP2430_PRM_REGADDR(OCP_MOD, 0x001c) + +#define OMAP2430_PRCM_VOLTCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0050) +#define OMAP2430_PRCM_VOLTST OMAP2430_PRM_REGADDR(OCP_MOD, 0x0054) +#define OMAP2430_PRCM_CLKSRC_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0060) +#define OMAP2430_PRCM_CLKOUT_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0070) +#define OMAP2430_PRCM_CLKEMUL_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0078) +#define OMAP2430_PRCM_CLKCFG_CTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0080) +#define OMAP2430_PRCM_CLKCFG_STATUS OMAP2430_PRM_REGADDR(OCP_MOD, 0x0084) +#define OMAP2430_PRCM_VOLTSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0090) +#define OMAP2430_PRCM_CLKSSETUP OMAP2430_PRM_REGADDR(OCP_MOD, 0x0094) +#define OMAP2430_PRCM_POLCTRL OMAP2430_PRM_REGADDR(OCP_MOD, 0x0098) + +#define OMAP3_PRM_REVISION_OFFSET 0x0004 +#define OMAP3430_PRM_REVISION OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0004) +#define OMAP3_PRM_SYSCONFIG_OFFSET 0x0014 +#define OMAP3430_PRM_SYSCONFIG OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0014) + +#define OMAP3_PRM_IRQSTATUS_MPU_OFFSET 0x0018 +#define OMAP3430_PRM_IRQSTATUS_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x0018) +#define OMAP3_PRM_IRQENABLE_MPU_OFFSET 0x001c +#define OMAP3430_PRM_IRQENABLE_MPU OMAP34XX_PRM_REGADDR(OCP_MOD, 0x001c) + + +#define OMAP3_PRM_VC_SMPS_SA_OFFSET 0x0020 +#define OMAP3430_PRM_VC_SMPS_SA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0020) +#define OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET 0x0024 +#define OMAP3430_PRM_VC_SMPS_VOL_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0024) +#define OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET 0x0028 +#define OMAP3430_PRM_VC_SMPS_CMD_RA OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0028) +#define OMAP3_PRM_VC_CMD_VAL_0_OFFSET 0x002c +#define OMAP3430_PRM_VC_CMD_VAL_0 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x002c) +#define OMAP3_PRM_VC_CMD_VAL_1_OFFSET 0x0030 +#define OMAP3430_PRM_VC_CMD_VAL_1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0030) +#define OMAP3_PRM_VC_CH_CONF_OFFSET 0x0034 +#define OMAP3430_PRM_VC_CH_CONF OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0034) +#define OMAP3_PRM_VC_I2C_CFG_OFFSET 0x0038 +#define OMAP3430_PRM_VC_I2C_CFG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0038) +#define OMAP3_PRM_VC_BYPASS_VAL_OFFSET 0x003c +#define OMAP3430_PRM_VC_BYPASS_VAL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x003c) +#define OMAP3_PRM_RSTCTRL_OFFSET 0x0050 +#define OMAP3430_PRM_RSTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0050) +#define OMAP3_PRM_RSTTIME_OFFSET 0x0054 +#define OMAP3430_PRM_RSTTIME OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0054) +#define OMAP3_PRM_RSTST_OFFSET 0x0058 +#define OMAP3430_PRM_RSTST OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0058) +#define OMAP3_PRM_VOLTCTRL_OFFSET 0x0060 +#define OMAP3430_PRM_VOLTCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0060) +#define OMAP3_PRM_SRAM_PCHARGE_OFFSET 0x0064 +#define OMAP3430_PRM_SRAM_PCHARGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0064) +#define OMAP3_PRM_CLKSRC_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKSRC_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0070) +#define OMAP3_PRM_VOLTSETUP1_OFFSET 0x0090 +#define OMAP3430_PRM_VOLTSETUP1 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0090) +#define OMAP3_PRM_VOLTOFFSET_OFFSET 0x0094 +#define OMAP3430_PRM_VOLTOFFSET OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0094) +#define OMAP3_PRM_CLKSETUP_OFFSET 0x0098 +#define OMAP3430_PRM_CLKSETUP OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x0098) +#define OMAP3_PRM_POLCTRL_OFFSET 0x009c +#define OMAP3430_PRM_POLCTRL OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x009c) +#define OMAP3_PRM_VOLTSETUP2_OFFSET 0x00a0 +#define OMAP3430_PRM_VOLTSETUP2 OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00a0) +#define OMAP3_PRM_VP1_CONFIG_OFFSET 0x00b0 +#define OMAP3430_PRM_VP1_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b0) +#define OMAP3_PRM_VP1_VSTEPMIN_OFFSET 0x00b4 +#define OMAP3430_PRM_VP1_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b4) +#define OMAP3_PRM_VP1_VSTEPMAX_OFFSET 0x00b8 +#define OMAP3430_PRM_VP1_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00b8) +#define OMAP3_PRM_VP1_VLIMITTO_OFFSET 0x00bc +#define OMAP3430_PRM_VP1_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00bc) +#define OMAP3_PRM_VP1_VOLTAGE_OFFSET 0x00c0 +#define OMAP3430_PRM_VP1_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c0) +#define OMAP3_PRM_VP1_STATUS_OFFSET 0x00c4 +#define OMAP3430_PRM_VP1_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00c4) +#define OMAP3_PRM_VP2_CONFIG_OFFSET 0x00d0 +#define OMAP3430_PRM_VP2_CONFIG OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d0) +#define OMAP3_PRM_VP2_VSTEPMIN_OFFSET 0x00d4 +#define OMAP3430_PRM_VP2_VSTEPMIN OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d4) +#define OMAP3_PRM_VP2_VSTEPMAX_OFFSET 0x00d8 +#define OMAP3430_PRM_VP2_VSTEPMAX OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00d8) +#define OMAP3_PRM_VP2_VLIMITTO_OFFSET 0x00dc +#define OMAP3430_PRM_VP2_VLIMITTO OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00dc) +#define OMAP3_PRM_VP2_VOLTAGE_OFFSET 0x00e0 +#define OMAP3430_PRM_VP2_VOLTAGE OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e0) +#define OMAP3_PRM_VP2_STATUS_OFFSET 0x00e4 +#define OMAP3430_PRM_VP2_STATUS OMAP34XX_PRM_REGADDR(OMAP3430_GR_MOD, 0x00e4) + +#define OMAP3_PRM_CLKSEL_OFFSET 0x0040 +#define OMAP3430_PRM_CLKSEL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0040) +#define OMAP3_PRM_CLKOUT_CTRL_OFFSET 0x0070 +#define OMAP3430_PRM_CLKOUT_CTRL OMAP34XX_PRM_REGADDR(OMAP3430_CCR_MOD, 0x0070) /* * Module specific PRM registers from PRM_BASE + domain offset @@ -156,9 +203,11 @@ #define OMAP3430_PM_MPUGRPSEL 0x00a4 #define OMAP3430_PM_MPUGRPSEL1 OMAP3430_PM_MPUGRPSEL +#define OMAP3430ES2_PM_MPUGRPSEL3 0x00f8 #define OMAP3430_PM_IVAGRPSEL 0x00a8 #define OMAP3430_PM_IVAGRPSEL1 OMAP3430_PM_IVAGRPSEL +#define OMAP3430ES2_PM_IVAGRPSEL3 0x00f4 #define OMAP3430_PM_PREPWSTST 0x00e8 diff --git a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h new file mode 100644 index 00000000000..02e1c2d4705 --- /dev/null +++ b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h @@ -0,0 +1,55 @@ +/* + * SDRC register values for the Micron MT46H32M32LF-6 + * + * Copyright (C) 2008 Texas Instruments, Inc. + * Copyright (C) 2008-2009 Nokia Corporation + * + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF +#define ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF + +#include <mach/sdrc.h> + +/* Micron MT46H32M32LF-6 */ +/* XXX Using ARE = 0x1 (no autorefresh burst) -- can this be changed? */ +static struct omap_sdrc_params mt46h32m32lf6_sdrc_params[] = { + [0] = { + .rate = 166000000, + .actim_ctrla = 0x9a9db4c6, + .actim_ctrlb = 0x00011217, + .rfr_ctrl = 0x0004dc01, + .mr = 0x00000032, + }, + [1] = { + .rate = 165941176, + .actim_ctrla = 0x9a9db4c6, + .actim_ctrlb = 0x00011217, + .rfr_ctrl = 0x0004dc01, + .mr = 0x00000032, + }, + [2] = { + .rate = 83000000, + .actim_ctrla = 0x51512283, + .actim_ctrlb = 0x0001120c, + .rfr_ctrl = 0x00025501, + .mr = 0x00000032, + }, + [3] = { + .rate = 82970588, + .actim_ctrla = 0x51512283, + .actim_ctrlb = 0x0001120c, + .rfr_ctrl = 0x00025501, + .mr = 0x00000032, + }, + [4] = { + .rate = 0 + }, +}; + +#endif diff --git a/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h new file mode 100644 index 00000000000..3751d293cb1 --- /dev/null +++ b/arch/arm/mach-omap2/sdram-qimonda-hyb18m512160af-6.h @@ -0,0 +1,54 @@ +/* + * SDRC register values for the Qimonda HYB18M512160AF-6 + * + * Copyright (C) 2008-2009 Texas Instruments, Inc. + * Copyright (C) 2008-2009 Nokia Corporation + * + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6 +#define ARCH_ARM_MACH_OMAP2_SDRAM_QIMONDA_HYB18M512160AF6 + +#include <mach/sdrc.h> + +/* Qimonda HYB18M512160AF-6 */ +static struct omap_sdrc_params hyb18m512160af6_sdrc_params[] = { + [0] = { + .rate = 166000000, + .actim_ctrla = 0x629db4c6, + .actim_ctrlb = 0x00012214, + .rfr_ctrl = 0x0004dc01, + .mr = 0x00000032, + }, + [1] = { + .rate = 165941176, + .actim_ctrla = 0x629db4c6, + .actim_ctrlb = 0x00012214, + .rfr_ctrl = 0x0004dc01, + .mr = 0x00000032, + }, + [2] = { + .rate = 83000000, + .actim_ctrla = 0x31512283, + .actim_ctrlb = 0x0001220a, + .rfr_ctrl = 0x00025501, + .mr = 0x00000022, + }, + [3] = { + .rate = 82970588, + .actim_ctrla = 0x31512283, + .actim_ctrlb = 0x0001220a, + .rfr_ctrl = 0x00025501, + .mr = 0x00000022, + }, + [4] = { + .rate = 0 + }, +}; + +#endif diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index 2a30060cb4b..2045441e838 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -37,6 +37,10 @@ static struct omap_sdrc_params *sdrc_init_params; void __iomem *omap2_sdrc_base; void __iomem *omap2_sms_base; +/* SDRC_POWER register bits */ +#define SDRC_POWER_EXTCLKDIS_SHIFT 3 +#define SDRC_POWER_PWDENA_SHIFT 2 +#define SDRC_POWER_PAGEPOLICY_SHIFT 0 /** * omap2_sdrc_get_params - return SDRC register values for a given clock rate @@ -56,9 +60,12 @@ struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r) { struct omap_sdrc_params *sp; + if (!sdrc_init_params) + return NULL; + sp = sdrc_init_params; - while (sp->rate != r) + while (sp->rate && sp->rate != r) sp++; if (!sp->rate) @@ -74,7 +81,14 @@ void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals) omap2_sms_base = omap2_globals->sms; } -/* turn on smart idle modes for SDRAM scheduler and controller */ +/** + * omap2_sdrc_init - initialize SMS, SDRC devices on boot + * @sp: pointer to a null-terminated list of struct omap_sdrc_params + * + * Turn on smart idle modes for SDRAM scheduler and controller. + * Program a known-good configuration for the SDRC to deal with buggy + * bootloaders. + */ void __init omap2_sdrc_init(struct omap_sdrc_params *sp) { u32 l; @@ -90,4 +104,10 @@ void __init omap2_sdrc_init(struct omap_sdrc_params *sp) sdrc_write_reg(l, SDRC_SYSCONFIG); sdrc_init_params = sp; + + /* XXX Enable SRFRONIDLEREQ here also? */ + l = (1 << SDRC_POWER_EXTCLKDIS_SHIFT) | + (1 << SDRC_POWER_PWDENA_SHIFT) | + (1 << SDRC_POWER_PAGEPOLICY_SHIFT); + sdrc_write_reg(l, SDRC_POWER); } diff --git a/arch/arm/mach-omap2/sdrc2xxx.c b/arch/arm/mach-omap2/sdrc2xxx.c index 0afdad5ae9f..feaec7eaf6b 100644 --- a/arch/arm/mach-omap2/sdrc2xxx.c +++ b/arch/arm/mach-omap2/sdrc2xxx.c @@ -99,7 +99,10 @@ u32 omap2xxx_sdrc_reprogram(u32 level, u32 force) m_type = omap2xxx_sdrc_get_type(); local_irq_save(flags); - __raw_writel(0xffff, OMAP24XX_PRCM_VOLTSETUP); + if (cpu_is_omap2420()) + __raw_writel(0xffff, OMAP2420_PRCM_VOLTSETUP); + else + __raw_writel(0xffff, OMAP2430_PRCM_VOLTSETUP); omap2_sram_reprogram_sdrc(level, dll_ctrl, m_type); curr_perf_level = level; local_irq_restore(flags); diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 4dcf39c285b..b094c15bfe4 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -6,8 +6,13 @@ * Copyright (C) 2005-2008 Nokia Corporation * Author: Paul Mundt <paul.mundt@nokia.com> * + * Major rework for PM support by Kevin Hilman + * * Based off of arch/arm/mach-omap/omap1/serial.c * + * Copyright (C) 2009 Texas Instruments + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com + * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. @@ -21,9 +26,50 @@ #include <mach/common.h> #include <mach/board.h> +#include <mach/clock.h> +#include <mach/control.h> + +#include "prm.h" +#include "pm.h" +#include "prm-regbits-34xx.h" + +#define UART_OMAP_WER 0x17 /* Wake-up enable register */ + +#define DEFAULT_TIMEOUT (5 * HZ) -static struct clk *uart_ick[OMAP_MAX_NR_PORTS]; -static struct clk *uart_fck[OMAP_MAX_NR_PORTS]; +struct omap_uart_state { + int num; + int can_sleep; + struct timer_list timer; + u32 timeout; + + void __iomem *wk_st; + void __iomem *wk_en; + u32 wk_mask; + u32 padconf; + + struct clk *ick; + struct clk *fck; + int clocked; + + struct plat_serial8250_port *p; + struct list_head node; + +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) + int context_valid; + + /* Registers to be saved/restored for OFF-mode */ + u16 dll; + u16 dlh; + u16 ier; + u16 sysc; + u16 scr; + u16 wer; +#endif +}; + +static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS]; +static LIST_HEAD(uart_list); static struct plat_serial8250_port serial_platform_data[] = { { @@ -74,33 +120,369 @@ static inline void serial_write_reg(struct plat_serial8250_port *p, int offset, * properly. Note that the TX watermark initialization may not be needed * once the 8250.c watermark handling code is merged. */ -static inline void __init omap_serial_reset(struct plat_serial8250_port *p) +static inline void __init omap_uart_reset(struct omap_uart_state *uart) { + struct plat_serial8250_port *p = uart->p; + serial_write_reg(p, UART_OMAP_MDR1, 0x07); serial_write_reg(p, UART_OMAP_SCR, 0x08); serial_write_reg(p, UART_OMAP_MDR1, 0x00); serial_write_reg(p, UART_OMAP_SYSC, (0x02 << 3) | (1 << 2) | (1 << 0)); } -void omap_serial_enable_clocks(int enable) +#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3) + +static int enable_off_mode; /* to be removed by full off-mode patches */ + +static void omap_uart_save_context(struct omap_uart_state *uart) { - int i; - for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { - if (uart_ick[i] && uart_fck[i]) { - if (enable) { - clk_enable(uart_ick[i]); - clk_enable(uart_fck[i]); - } else { - clk_disable(uart_ick[i]); - clk_disable(uart_fck[i]); + u16 lcr = 0; + struct plat_serial8250_port *p = uart->p; + + if (!enable_off_mode) + return; + + lcr = serial_read_reg(p, UART_LCR); + serial_write_reg(p, UART_LCR, 0xBF); + uart->dll = serial_read_reg(p, UART_DLL); + uart->dlh = serial_read_reg(p, UART_DLM); + serial_write_reg(p, UART_LCR, lcr); + uart->ier = serial_read_reg(p, UART_IER); + uart->sysc = serial_read_reg(p, UART_OMAP_SYSC); + uart->scr = serial_read_reg(p, UART_OMAP_SCR); + uart->wer = serial_read_reg(p, UART_OMAP_WER); + + uart->context_valid = 1; +} + +static void omap_uart_restore_context(struct omap_uart_state *uart) +{ + u16 efr = 0; + struct plat_serial8250_port *p = uart->p; + + if (!enable_off_mode) + return; + + if (!uart->context_valid) + return; + + uart->context_valid = 0; + + serial_write_reg(p, UART_OMAP_MDR1, 0x7); + serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ + efr = serial_read_reg(p, UART_EFR); + serial_write_reg(p, UART_EFR, UART_EFR_ECB); + serial_write_reg(p, UART_LCR, 0x0); /* Operational mode */ + serial_write_reg(p, UART_IER, 0x0); + serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ + serial_write_reg(p, UART_DLL, uart->dll); + serial_write_reg(p, UART_DLM, uart->dlh); + serial_write_reg(p, UART_LCR, 0x0); /* Operational mode */ + serial_write_reg(p, UART_IER, uart->ier); + serial_write_reg(p, UART_FCR, 0xA1); + serial_write_reg(p, UART_LCR, 0xBF); /* Config B mode */ + serial_write_reg(p, UART_EFR, efr); + serial_write_reg(p, UART_LCR, UART_LCR_WLEN8); + serial_write_reg(p, UART_OMAP_SCR, uart->scr); + serial_write_reg(p, UART_OMAP_WER, uart->wer); + serial_write_reg(p, UART_OMAP_SYSC, uart->sysc); + serial_write_reg(p, UART_OMAP_MDR1, 0x00); /* UART 16x mode */ +} +#else +static inline void omap_uart_save_context(struct omap_uart_state *uart) {} +static inline void omap_uart_restore_context(struct omap_uart_state *uart) {} +#endif /* CONFIG_PM && CONFIG_ARCH_OMAP3 */ + +static inline void omap_uart_enable_clocks(struct omap_uart_state *uart) +{ + if (uart->clocked) + return; + + clk_enable(uart->ick); + clk_enable(uart->fck); + uart->clocked = 1; + omap_uart_restore_context(uart); +} + +#ifdef CONFIG_PM + +static inline void omap_uart_disable_clocks(struct omap_uart_state *uart) +{ + if (!uart->clocked) + return; + + omap_uart_save_context(uart); + uart->clocked = 0; + clk_disable(uart->ick); + clk_disable(uart->fck); +} + +static void omap_uart_smart_idle_enable(struct omap_uart_state *uart, + int enable) +{ + struct plat_serial8250_port *p = uart->p; + u16 sysc; + + sysc = serial_read_reg(p, UART_OMAP_SYSC) & 0x7; + if (enable) + sysc |= 0x2 << 3; + else + sysc |= 0x1 << 3; + + serial_write_reg(p, UART_OMAP_SYSC, sysc); +} + +static void omap_uart_block_sleep(struct omap_uart_state *uart) +{ + omap_uart_enable_clocks(uart); + + omap_uart_smart_idle_enable(uart, 0); + uart->can_sleep = 0; + if (uart->timeout) + mod_timer(&uart->timer, jiffies + uart->timeout); + else + del_timer(&uart->timer); +} + +static void omap_uart_allow_sleep(struct omap_uart_state *uart) +{ + if (!uart->clocked) + return; + + omap_uart_smart_idle_enable(uart, 1); + uart->can_sleep = 1; + del_timer(&uart->timer); +} + +static void omap_uart_idle_timer(unsigned long data) +{ + struct omap_uart_state *uart = (struct omap_uart_state *)data; + + omap_uart_allow_sleep(uart); +} + +void omap_uart_prepare_idle(int num) +{ + struct omap_uart_state *uart; + + list_for_each_entry(uart, &uart_list, node) { + if (num == uart->num && uart->can_sleep) { + omap_uart_disable_clocks(uart); + return; + } + } +} + +void omap_uart_resume_idle(int num) +{ + struct omap_uart_state *uart; + + list_for_each_entry(uart, &uart_list, node) { + if (num == uart->num) { + omap_uart_enable_clocks(uart); + + /* Check for IO pad wakeup */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 p = omap_ctrl_readw(uart->padconf); + + if (p & OMAP3_PADCONF_WAKEUPEVENT0) + omap_uart_block_sleep(uart); } + + /* Check for normal UART wakeup */ + if (__raw_readl(uart->wk_st) & uart->wk_mask) + omap_uart_block_sleep(uart); + + return; } } } +void omap_uart_prepare_suspend(void) +{ + struct omap_uart_state *uart; + + list_for_each_entry(uart, &uart_list, node) { + omap_uart_allow_sleep(uart); + } +} + +int omap_uart_can_sleep(void) +{ + struct omap_uart_state *uart; + int can_sleep = 1; + + list_for_each_entry(uart, &uart_list, node) { + if (!uart->clocked) + continue; + + if (!uart->can_sleep) { + can_sleep = 0; + continue; + } + + /* This UART can now safely sleep. */ + omap_uart_allow_sleep(uart); + } + + return can_sleep; +} + +/** + * omap_uart_interrupt() + * + * This handler is used only to detect that *any* UART interrupt has + * occurred. It does _nothing_ to handle the interrupt. Rather, + * any UART interrupt will trigger the inactivity timer so the + * UART will not idle or sleep for its timeout period. + * + **/ +static irqreturn_t omap_uart_interrupt(int irq, void *dev_id) +{ + struct omap_uart_state *uart = dev_id; + + omap_uart_block_sleep(uart); + + return IRQ_NONE; +} + +static u32 sleep_timeout = DEFAULT_TIMEOUT; + +static void omap_uart_idle_init(struct omap_uart_state *uart) +{ + u32 v; + struct plat_serial8250_port *p = uart->p; + int ret; + + uart->can_sleep = 0; + uart->timeout = sleep_timeout; + setup_timer(&uart->timer, omap_uart_idle_timer, + (unsigned long) uart); + mod_timer(&uart->timer, jiffies + uart->timeout); + omap_uart_smart_idle_enable(uart, 0); + + if (cpu_is_omap34xx()) { + u32 mod = (uart->num == 2) ? OMAP3430_PER_MOD : CORE_MOD; + u32 wk_mask = 0; + u32 padconf = 0; + + uart->wk_en = OMAP34XX_PRM_REGADDR(mod, PM_WKEN1); + uart->wk_st = OMAP34XX_PRM_REGADDR(mod, PM_WKST1); + switch (uart->num) { + case 0: + wk_mask = OMAP3430_ST_UART1_MASK; + padconf = 0x182; + break; + case 1: + wk_mask = OMAP3430_ST_UART2_MASK; + padconf = 0x17a; + break; + case 2: + wk_mask = OMAP3430_ST_UART3_MASK; + padconf = 0x19e; + break; + } + uart->wk_mask = wk_mask; + uart->padconf = padconf; + } else if (cpu_is_omap24xx()) { + u32 wk_mask = 0; + + if (cpu_is_omap2430()) { + uart->wk_en = OMAP2430_PRM_REGADDR(CORE_MOD, PM_WKEN1); + uart->wk_st = OMAP2430_PRM_REGADDR(CORE_MOD, PM_WKST1); + } else if (cpu_is_omap2420()) { + uart->wk_en = OMAP2420_PRM_REGADDR(CORE_MOD, PM_WKEN1); + uart->wk_st = OMAP2420_PRM_REGADDR(CORE_MOD, PM_WKST1); + } + switch (uart->num) { + case 0: + wk_mask = OMAP24XX_ST_UART1_MASK; + break; + case 1: + wk_mask = OMAP24XX_ST_UART2_MASK; + break; + case 2: + wk_mask = OMAP24XX_ST_UART3_MASK; + break; + } + uart->wk_mask = wk_mask; + } else { + uart->wk_en = 0; + uart->wk_st = 0; + uart->wk_mask = 0; + uart->padconf = 0; + } + + /* Set wake-enable bit */ + if (uart->wk_en && uart->wk_mask) { + v = __raw_readl(uart->wk_en); + v |= uart->wk_mask; + __raw_writel(v, uart->wk_en); + } + + /* Ensure IOPAD wake-enables are set */ + if (cpu_is_omap34xx() && uart->padconf) { + u16 v; + + v = omap_ctrl_readw(uart->padconf); + v |= OMAP3_PADCONF_WAKEUPENABLE0; + omap_ctrl_writew(v, uart->padconf); + } + + p->flags |= UPF_SHARE_IRQ; + ret = request_irq(p->irq, omap_uart_interrupt, IRQF_SHARED, + "serial idle", (void *)uart); + WARN_ON(ret); +} + +static ssize_t sleep_timeout_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *buf) +{ + return sprintf(buf, "%u\n", sleep_timeout / HZ); +} + +static ssize_t sleep_timeout_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t n) +{ + struct omap_uart_state *uart; + unsigned int value; + + if (sscanf(buf, "%u", &value) != 1) { + printk(KERN_ERR "sleep_timeout_store: Invalid value\n"); + return -EINVAL; + } + sleep_timeout = value * HZ; + list_for_each_entry(uart, &uart_list, node) { + uart->timeout = sleep_timeout; + if (uart->timeout) + mod_timer(&uart->timer, jiffies + uart->timeout); + else + /* A zero value means disable timeout feature */ + omap_uart_block_sleep(uart); + } + return n; +} + +static struct kobj_attribute sleep_timeout_attr = + __ATTR(sleep_timeout, 0644, sleep_timeout_show, sleep_timeout_store); + +#else +static inline void omap_uart_idle_init(struct omap_uart_state *uart) {} +#endif /* CONFIG_PM */ + +static struct platform_device serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = serial_platform_data, + }, +}; + void __init omap_serial_init(void) { - int i; + int i, err; const struct omap_uart_config *info; char name[16]; @@ -114,9 +496,14 @@ void __init omap_serial_init(void) if (info == NULL) return; + if (cpu_is_omap44xx()) { + for (i = 0; i < OMAP_MAX_NR_PORTS; i++) + serial_platform_data[i].irq += 32; + } for (i = 0; i < OMAP_MAX_NR_PORTS; i++) { struct plat_serial8250_port *p = serial_platform_data + i; + struct omap_uart_state *uart = &omap_uart[i]; if (!(info->enabled_uarts & (1 << i))) { p->membase = NULL; @@ -125,35 +512,39 @@ void __init omap_serial_init(void) } sprintf(name, "uart%d_ick", i+1); - uart_ick[i] = clk_get(NULL, name); - if (IS_ERR(uart_ick[i])) { + uart->ick = clk_get(NULL, name); + if (IS_ERR(uart->ick)) { printk(KERN_ERR "Could not get uart%d_ick\n", i+1); - uart_ick[i] = NULL; - } else - clk_enable(uart_ick[i]); + uart->ick = NULL; + } sprintf(name, "uart%d_fck", i+1); - uart_fck[i] = clk_get(NULL, name); - if (IS_ERR(uart_fck[i])) { + uart->fck = clk_get(NULL, name); + if (IS_ERR(uart->fck)) { printk(KERN_ERR "Could not get uart%d_fck\n", i+1); - uart_fck[i] = NULL; - } else - clk_enable(uart_fck[i]); + uart->fck = NULL; + } - omap_serial_reset(p); + if (!uart->ick || !uart->fck) + continue; + + uart->num = i; + p->private_data = uart; + uart->p = p; + list_add(&uart->node, &uart_list); + + omap_uart_enable_clocks(uart); + omap_uart_reset(uart); + omap_uart_idle_init(uart); } -} -static struct platform_device serial_device = { - .name = "serial8250", - .id = PLAT8250_DEV_PLATFORM, - .dev = { - .platform_data = serial_platform_data, - }, -}; + err = platform_device_register(&serial_device); + +#ifdef CONFIG_PM + if (!err) + err = sysfs_create_file(&serial_device.dev.kobj, + &sleep_timeout_attr.attr); +#endif -static int __init omap_init(void) -{ - return platform_device_register(&serial_device); } -arch_initcall(omap_init); + diff --git a/arch/arm/mach-omap2/sleep24xx.S b/arch/arm/mach-omap2/sleep24xx.S index bf9e96105e1..130aadbfa08 100644 --- a/arch/arm/mach-omap2/sleep24xx.S +++ b/arch/arm/mach-omap2/sleep24xx.S @@ -28,7 +28,6 @@ #include <linux/linkage.h> #include <asm/assembler.h> #include <mach/io.h> -#include <mach/pm.h> #include <mach/omap24xx.h> diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S new file mode 100644 index 00000000000..e5e2553e79a --- /dev/null +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -0,0 +1,436 @@ +/* + * linux/arch/arm/mach-omap2/sleep.S + * + * (C) Copyright 2007 + * Texas Instruments + * Karthik Dasu <karthik-dp@ti.com> + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <linux/linkage.h> +#include <asm/assembler.h> +#include <mach/io.h> +#include <mach/control.h> + +#include "prm.h" +#include "sdrc.h" + +#define PM_PREPWSTST_CORE_V OMAP34XX_PRM_REGADDR(CORE_MOD, \ + OMAP3430_PM_PREPWSTST) +#define PM_PREPWSTST_MPU_V OMAP34XX_PRM_REGADDR(MPU_MOD, \ + OMAP3430_PM_PREPWSTST) +#define PM_PWSTCTRL_MPU_P OMAP34XX_PRM_REGADDR(MPU_MOD, PM_PWSTCTRL) +#define SCRATCHPAD_MEM_OFFS 0x310 /* Move this as correct place is + * available */ +#define SCRATCHPAD_BASE_P OMAP343X_CTRL_REGADDR(\ + OMAP343X_CONTROL_MEM_WKUP +\ + SCRATCHPAD_MEM_OFFS) +#define SDRC_POWER_V OMAP34XX_SDRC_REGADDR(SDRC_POWER) + + .text +/* Function call to get the restore pointer for resume from OFF */ +ENTRY(get_restore_pointer) + stmfd sp!, {lr} @ save registers on stack + adr r0, restore + ldmfd sp!, {pc} @ restore regs and return +ENTRY(get_restore_pointer_sz) + .word . - get_restore_pointer_sz +/* + * Forces OMAP into idle state + * + * omap34xx_suspend() - This bit of code just executes the WFI + * for normal idles. + * + * Note: This code get's copied to internal SRAM at boot. When the OMAP + * wakes up it continues execution at the point it went to sleep. + */ +ENTRY(omap34xx_cpu_suspend) + stmfd sp!, {r0-r12, lr} @ save registers on stack +loop: + /*b loop*/ @Enable to debug by stepping through code + /* r0 contains restore pointer in sdram */ + /* r1 contains information about saving context */ + ldr r4, sdrc_power @ read the SDRC_POWER register + ldr r5, [r4] @ read the contents of SDRC_POWER + orr r5, r5, #0x40 @ enable self refresh on idle req + str r5, [r4] @ write back to SDRC_POWER register + + cmp r1, #0x0 + /* If context save is required, do that and execute wfi */ + bne save_context_wfi + /* Data memory barrier and Data sync barrier */ + mov r1, #0 + mcr p15, 0, r1, c7, c10, 4 + mcr p15, 0, r1, c7, c10, 5 + + wfi @ wait for interrupt + + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + bl i_dll_wait + + ldmfd sp!, {r0-r12, pc} @ restore regs and return +restore: + /* b restore*/ @ Enable to debug restore code + /* Check what was the reason for mpu reset and store the reason in r9*/ + /* 1 - Only L1 and logic lost */ + /* 2 - Only L2 lost - In this case, we wont be here */ + /* 3 - Both L1 and L2 lost */ + ldr r1, pm_pwstctrl_mpu + ldr r2, [r1] + and r2, r2, #0x3 + cmp r2, #0x0 @ Check if target power state was OFF or RET + moveq r9, #0x3 @ MPU OFF => L1 and L2 lost + movne r9, #0x1 @ Only L1 and L2 lost => avoid L2 invalidation + bne logic_l1_restore + /* Execute smi to invalidate L2 cache */ + mov r12, #0x1 @ set up to invalide L2 +smi: .word 0xE1600070 @ Call SMI monitor (smieq) +logic_l1_restore: + mov r1, #0 + /* Invalidate all instruction caches to PoU + * and flush branch target cache */ + mcr p15, 0, r1, c7, c5, 0 + + ldr r4, scratchpad_base + ldr r3, [r4,#0xBC] + ldmia r3!, {r4-r6} + mov sp, r4 + msr spsr_cxsf, r5 + mov lr, r6 + + ldmia r3!, {r4-r9} + /* Coprocessor access Control Register */ + mcr p15, 0, r4, c1, c0, 2 + + /* TTBR0 */ + MCR p15, 0, r5, c2, c0, 0 + /* TTBR1 */ + MCR p15, 0, r6, c2, c0, 1 + /* Translation table base control register */ + MCR p15, 0, r7, c2, c0, 2 + /*domain access Control Register */ + MCR p15, 0, r8, c3, c0, 0 + /* data fault status Register */ + MCR p15, 0, r9, c5, c0, 0 + + ldmia r3!,{r4-r8} + /* instruction fault status Register */ + MCR p15, 0, r4, c5, c0, 1 + /*Data Auxiliary Fault Status Register */ + MCR p15, 0, r5, c5, c1, 0 + /*Instruction Auxiliary Fault Status Register*/ + MCR p15, 0, r6, c5, c1, 1 + /*Data Fault Address Register */ + MCR p15, 0, r7, c6, c0, 0 + /*Instruction Fault Address Register*/ + MCR p15, 0, r8, c6, c0, 2 + ldmia r3!,{r4-r7} + + /* user r/w thread and process ID */ + MCR p15, 0, r4, c13, c0, 2 + /* user ro thread and process ID */ + MCR p15, 0, r5, c13, c0, 3 + /*Privileged only thread and process ID */ + MCR p15, 0, r6, c13, c0, 4 + /* cache size selection */ + MCR p15, 2, r7, c0, c0, 0 + ldmia r3!,{r4-r8} + /* Data TLB lockdown registers */ + MCR p15, 0, r4, c10, c0, 0 + /* Instruction TLB lockdown registers */ + MCR p15, 0, r5, c10, c0, 1 + /* Secure or Nonsecure Vector Base Address */ + MCR p15, 0, r6, c12, c0, 0 + /* FCSE PID */ + MCR p15, 0, r7, c13, c0, 0 + /* Context PID */ + MCR p15, 0, r8, c13, c0, 1 + + ldmia r3!,{r4-r5} + /* primary memory remap register */ + MCR p15, 0, r4, c10, c2, 0 + /*normal memory remap register */ + MCR p15, 0, r5, c10, c2, 1 + + /* Restore cpsr */ + ldmia r3!,{r4} /*load CPSR from SDRAM*/ + msr cpsr, r4 /*store cpsr */ + + /* Enabling MMU here */ + mrc p15, 0, r7, c2, c0, 2 /* Read TTBRControl */ + /* Extract N (0:2) bits and decide whether to use TTBR0 or TTBR1*/ + and r7, #0x7 + cmp r7, #0x0 + beq usettbr0 +ttbr_error: + /* More work needs to be done to support N[0:2] value other than 0 + * So looping here so that the error can be detected + */ + b ttbr_error +usettbr0: + mrc p15, 0, r2, c2, c0, 0 + ldr r5, ttbrbit_mask + and r2, r5 + mov r4, pc + ldr r5, table_index_mask + and r4, r5 /* r4 = 31 to 20 bits of pc */ + /* Extract the value to be written to table entry */ + ldr r1, table_entry + add r1, r1, r4 /* r1 has value to be written to table entry*/ + /* Getting the address of table entry to modify */ + lsr r4, #18 + add r2, r4 /* r2 has the location which needs to be modified */ + /* Storing previous entry of location being modified */ + ldr r5, scratchpad_base + ldr r4, [r2] + str r4, [r5, #0xC0] + /* Modify the table entry */ + str r1, [r2] + /* Storing address of entry being modified + * - will be restored after enabling MMU */ + ldr r5, scratchpad_base + str r2, [r5, #0xC4] + + mov r0, #0 + mcr p15, 0, r0, c7, c5, 4 @ Flush prefetch buffer + mcr p15, 0, r0, c7, c5, 6 @ Invalidate branch predictor array + mcr p15, 0, r0, c8, c5, 0 @ Invalidate instruction TLB + mcr p15, 0, r0, c8, c6, 0 @ Invalidate data TLB + /* Restore control register but dont enable caches here*/ + /* Caches will be enabled after restoring MMU table entry */ + ldmia r3!, {r4} + /* Store previous value of control register in scratchpad */ + str r4, [r5, #0xC8] + ldr r2, cache_pred_disable_mask + and r4, r2 + mcr p15, 0, r4, c1, c0, 0 + + ldmfd sp!, {r0-r12, pc} @ restore regs and return +save_context_wfi: + /*b save_context_wfi*/ @ enable to debug save code + mov r8, r0 /* Store SDRAM address in r8 */ + /* Check what that target sleep state is:stored in r1*/ + /* 1 - Only L1 and logic lost */ + /* 2 - Only L2 lost */ + /* 3 - Both L1 and L2 lost */ + cmp r1, #0x2 /* Only L2 lost */ + beq clean_l2 + cmp r1, #0x1 /* L2 retained */ + /* r9 stores whether to clean L2 or not*/ + moveq r9, #0x0 /* Dont Clean L2 */ + movne r9, #0x1 /* Clean L2 */ +l1_logic_lost: + /* Store sp and spsr to SDRAM */ + mov r4, sp + mrs r5, spsr + mov r6, lr + stmia r8!, {r4-r6} + /* Save all ARM registers */ + /* Coprocessor access control register */ + mrc p15, 0, r6, c1, c0, 2 + stmia r8!, {r6} + /* TTBR0, TTBR1 and Translation table base control */ + mrc p15, 0, r4, c2, c0, 0 + mrc p15, 0, r5, c2, c0, 1 + mrc p15, 0, r6, c2, c0, 2 + stmia r8!, {r4-r6} + /* Domain access control register, data fault status register, + and instruction fault status register */ + mrc p15, 0, r4, c3, c0, 0 + mrc p15, 0, r5, c5, c0, 0 + mrc p15, 0, r6, c5, c0, 1 + stmia r8!, {r4-r6} + /* Data aux fault status register, instruction aux fault status, + datat fault address register and instruction fault address register*/ + mrc p15, 0, r4, c5, c1, 0 + mrc p15, 0, r5, c5, c1, 1 + mrc p15, 0, r6, c6, c0, 0 + mrc p15, 0, r7, c6, c0, 2 + stmia r8!, {r4-r7} + /* user r/w thread and process ID, user r/o thread and process ID, + priv only thread and process ID, cache size selection */ + mrc p15, 0, r4, c13, c0, 2 + mrc p15, 0, r5, c13, c0, 3 + mrc p15, 0, r6, c13, c0, 4 + mrc p15, 2, r7, c0, c0, 0 + stmia r8!, {r4-r7} + /* Data TLB lockdown, instruction TLB lockdown registers */ + mrc p15, 0, r5, c10, c0, 0 + mrc p15, 0, r6, c10, c0, 1 + stmia r8!, {r5-r6} + /* Secure or non secure vector base address, FCSE PID, Context PID*/ + mrc p15, 0, r4, c12, c0, 0 + mrc p15, 0, r5, c13, c0, 0 + mrc p15, 0, r6, c13, c0, 1 + stmia r8!, {r4-r6} + /* Primary remap, normal remap registers */ + mrc p15, 0, r4, c10, c2, 0 + mrc p15, 0, r5, c10, c2, 1 + stmia r8!,{r4-r5} + + /* Store current cpsr*/ + mrs r2, cpsr + stmia r8!, {r2} + + mrc p15, 0, r4, c1, c0, 0 + /* save control register */ + stmia r8!, {r4} +clean_caches: + /* Clean Data or unified cache to POU*/ + /* How to invalidate only L1 cache???? - #FIX_ME# */ + /* mcr p15, 0, r11, c7, c11, 1 */ + cmp r9, #1 /* Check whether L2 inval is required or not*/ + bne skip_l2_inval +clean_l2: + /* read clidr */ + mrc p15, 1, r0, c0, c0, 1 + /* extract loc from clidr */ + ands r3, r0, #0x7000000 + /* left align loc bit field */ + mov r3, r3, lsr #23 + /* if loc is 0, then no need to clean */ + beq finished + /* start clean at cache level 0 */ + mov r10, #0 +loop1: + /* work out 3x current cache level */ + add r2, r10, r10, lsr #1 + /* extract cache type bits from clidr*/ + mov r1, r0, lsr r2 + /* mask of the bits for current cache only */ + and r1, r1, #7 + /* see what cache we have at this level */ + cmp r1, #2 + /* skip if no cache, or just i-cache */ + blt skip + /* select current cache level in cssr */ + mcr p15, 2, r10, c0, c0, 0 + /* isb to sych the new cssr&csidr */ + isb + /* read the new csidr */ + mrc p15, 1, r1, c0, c0, 0 + /* extract the length of the cache lines */ + and r2, r1, #7 + /* add 4 (line length offset) */ + add r2, r2, #4 + ldr r4, assoc_mask + /* find maximum number on the way size */ + ands r4, r4, r1, lsr #3 + /* find bit position of way size increment */ + clz r5, r4 + ldr r7, numset_mask + /* extract max number of the index size*/ + ands r7, r7, r1, lsr #13 +loop2: + mov r9, r4 + /* create working copy of max way size*/ +loop3: + /* factor way and cache number into r11 */ + orr r11, r10, r9, lsl r5 + /* factor index number into r11 */ + orr r11, r11, r7, lsl r2 + /*clean & invalidate by set/way */ + mcr p15, 0, r11, c7, c10, 2 + /* decrement the way*/ + subs r9, r9, #1 + bge loop3 + /*decrement the index */ + subs r7, r7, #1 + bge loop2 +skip: + add r10, r10, #2 + /* increment cache number */ + cmp r3, r10 + bgt loop1 +finished: + /*swith back to cache level 0 */ + mov r10, #0 + /* select current cache level in cssr */ + mcr p15, 2, r10, c0, c0, 0 + isb +skip_l2_inval: + /* Data memory barrier and Data sync barrier */ + mov r1, #0 + mcr p15, 0, r1, c7, c10, 4 + mcr p15, 0, r1, c7, c10, 5 + + wfi @ wait for interrupt + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + bl i_dll_wait + /* restore regs and return */ + ldmfd sp!, {r0-r12, pc} + +i_dll_wait: + ldr r4, clk_stabilize_delay + +i_dll_delay: + subs r4, r4, #0x1 + bne i_dll_delay + ldr r4, sdrc_power + ldr r5, [r4] + bic r5, r5, #0x40 + str r5, [r4] + bx lr +pm_prepwstst_core: + .word PM_PREPWSTST_CORE_V +pm_prepwstst_mpu: + .word PM_PREPWSTST_MPU_V +pm_pwstctrl_mpu: + .word PM_PWSTCTRL_MPU_P +scratchpad_base: + .word SCRATCHPAD_BASE_P +sdrc_power: + .word SDRC_POWER_V +context_mem: + .word 0x803E3E14 +clk_stabilize_delay: + .word 0x000001FF +assoc_mask: + .word 0x3ff +numset_mask: + .word 0x7fff +ttbrbit_mask: + .word 0xFFFFC000 +table_index_mask: + .word 0xFFF00000 +table_entry: + .word 0x00000C02 +cache_pred_disable_mask: + .word 0xFFFFE7FB +ENTRY(omap34xx_cpu_suspend_sz) + .word . - omap34xx_cpu_suspend diff --git a/arch/arm/mach-omap2/sram242x.S b/arch/arm/mach-omap2/sram242x.S index af4bd349022..bb299851116 100644 --- a/arch/arm/mach-omap2/sram242x.S +++ b/arch/arm/mach-omap2/sram242x.S @@ -124,11 +124,11 @@ omap242x_sdi_cm_clksel2_pll: omap242x_sdi_sdrc_dlla_ctrl: .word OMAP242X_SDRC_REGADDR(SDRC_DLLA_CTRL) omap242x_sdi_prcm_voltctrl: - .word OMAP242X_PRCM_VOLTCTRL + .word OMAP2420_PRCM_VOLTCTRL prcm_mask_val: .word 0xFFFF3FFC omap242x_sdi_timer_32ksynct_cr: - .word IO_ADDRESS(OMAP2_32KSYNCT_BASE + 0x010) + .word IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010) ENTRY(omap242x_sram_ddr_init_sz) .word . - omap242x_sram_ddr_init @@ -220,11 +220,11 @@ omap242x_srs_sdrc_dlla_ctrl: omap242x_srs_sdrc_rfr_ctrl: .word OMAP242X_SDRC_REGADDR(SDRC_RFR_CTRL_0) omap242x_srs_prcm_voltctrl: - .word OMAP242X_PRCM_VOLTCTRL + .word OMAP2420_PRCM_VOLTCTRL ddr_prcm_mask_val: .word 0xFFFF3FFC omap242x_srs_timer_32ksynct: - .word IO_ADDRESS(OMAP2_32KSYNCT_BASE + 0x010) + .word IO_ADDRESS(OMAP2420_32KSYNCT_BASE + 0x010) ENTRY(omap242x_sram_reprogram_sdrc_sz) .word . - omap242x_sram_reprogram_sdrc @@ -305,7 +305,7 @@ wait_dll_lock: ldmfd sp!, {r0-r12, pc} @ restore regs and return omap242x_ssp_set_config: - .word OMAP242X_PRCM_CLKCFG_CTRL + .word OMAP2420_PRCM_CLKCFG_CTRL omap242x_ssp_pll_ctl: .word OMAP2420_CM_REGADDR(PLL_MOD, CM_CLKEN) omap242x_ssp_pll_stat: diff --git a/arch/arm/mach-omap2/sram243x.S b/arch/arm/mach-omap2/sram243x.S index 84363e269e8..9955abcaeb3 100644 --- a/arch/arm/mach-omap2/sram243x.S +++ b/arch/arm/mach-omap2/sram243x.S @@ -124,11 +124,11 @@ omap243x_sdi_cm_clksel2_pll: omap243x_sdi_sdrc_dlla_ctrl: .word OMAP243X_SDRC_REGADDR(SDRC_DLLA_CTRL) omap243x_sdi_prcm_voltctrl: - .word OMAP243X_PRCM_VOLTCTRL + .word OMAP2430_PRCM_VOLTCTRL prcm_mask_val: .word 0xFFFF3FFC omap243x_sdi_timer_32ksynct_cr: - .word IO_ADDRESS(OMAP2_32KSYNCT_BASE + 0x010) + .word IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010) ENTRY(omap243x_sram_ddr_init_sz) .word . - omap243x_sram_ddr_init @@ -220,11 +220,11 @@ omap243x_srs_sdrc_dlla_ctrl: omap243x_srs_sdrc_rfr_ctrl: .word OMAP243X_SDRC_REGADDR(SDRC_RFR_CTRL_0) omap243x_srs_prcm_voltctrl: - .word OMAP243X_PRCM_VOLTCTRL + .word OMAP2430_PRCM_VOLTCTRL ddr_prcm_mask_val: .word 0xFFFF3FFC omap243x_srs_timer_32ksynct: - .word IO_ADDRESS(OMAP2_32KSYNCT_BASE + 0x010) + .word IO_ADDRESS(OMAP2430_32KSYNCT_BASE + 0x010) ENTRY(omap243x_sram_reprogram_sdrc_sz) .word . - omap243x_sram_reprogram_sdrc @@ -305,7 +305,7 @@ wait_dll_lock: ldmfd sp!, {r0-r12, pc} @ restore regs and return omap243x_ssp_set_config: - .word OMAP243X_PRCM_CLKCFG_CTRL + .word OMAP2430_PRCM_CLKCFG_CTRL omap243x_ssp_pll_ctl: .word OMAP2430_CM_REGADDR(PLL_MOD, CM_CLKEN) omap243x_ssp_pll_stat: diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 2c714613634..c080c82521e 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -40,69 +40,74 @@ /* * Change frequency of core dpll * r0 = sdrc_rfr_ctrl r1 = sdrc_actim_ctrla r2 = sdrc_actim_ctrlb r3 = M2 + * r4 = Unlock SDRC DLL? (1 = yes, 0 = no) -- only unlock DLL for + * SDRC rates < 83MHz */ ENTRY(omap3_sram_configure_core_dpll) stmfd sp!, {r1-r12, lr} @ store regs to stack + ldr r4, [sp, #52] @ pull extra args off the stack + dsb @ flush buffered writes to interconnect cmp r3, #0x2 blne configure_sdrc - cmp r3, #0x2 + cmp r4, #0x1 + bleq unlock_dll blne lock_dll - cmp r3, #0x1 - blne unlock_dll bl sdram_in_selfrefresh @ put the SDRAM in self refresh bl configure_core_dpll bl enable_sdrc - cmp r3, #0x1 - blne wait_dll_unlock - cmp r3, #0x2 + cmp r4, #0x1 + bleq wait_dll_unlock blne wait_dll_lock cmp r3, #0x1 blne configure_sdrc + isb @ prevent speculative exec past here mov r0, #0 @ return value ldmfd sp!, {r1-r12, pc} @ restore regs and return unlock_dll: - ldr r4, omap3_sdrc_dlla_ctrl - ldr r5, [r4] - orr r5, r5, #0x4 - str r5, [r4] + ldr r11, omap3_sdrc_dlla_ctrl + ldr r12, [r11] + orr r12, r12, #0x4 + str r12, [r11] @ (no OCP barrier needed) bx lr lock_dll: - ldr r4, omap3_sdrc_dlla_ctrl - ldr r5, [r4] - bic r5, r5, #0x4 - str r5, [r4] + ldr r11, omap3_sdrc_dlla_ctrl + ldr r12, [r11] + bic r12, r12, #0x4 + str r12, [r11] @ (no OCP barrier needed) bx lr sdram_in_selfrefresh: - mov r5, #0x0 @ Move 0 to R5 - mcr p15, 0, r5, c7, c10, 5 @ memory barrier - ldr r4, omap3_sdrc_power @ read the SDRC_POWER register - ldr r5, [r4] @ read the contents of SDRC_POWER - orr r5, r5, #0x40 @ enable self refresh on idle req - str r5, [r4] @ write back to SDRC_POWER register - ldr r4, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg - ldr r5, [r4] - bic r5, r5, #0x2 @ disable iclk bit for SRDC - str r5, [r4] + ldr r11, omap3_sdrc_power @ read the SDRC_POWER register + ldr r12, [r11] @ read the contents of SDRC_POWER + mov r9, r12 @ keep a copy of SDRC_POWER bits + orr r12, r12, #0x40 @ enable self refresh on idle req + bic r12, r12, #0x4 @ clear PWDENA + str r12, [r11] @ write back to SDRC_POWER register + ldr r12, [r11] @ posted-write barrier for SDRC + ldr r11, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg + ldr r12, [r11] + bic r12, r12, #0x2 @ disable iclk bit for SDRC + str r12, [r11] wait_sdrc_idle: - ldr r4, omap3_cm_idlest1_core - ldr r5, [r4] - and r5, r5, #0x2 @ check for SDRC idle - cmp r5, #2 + ldr r11, omap3_cm_idlest1_core + ldr r12, [r11] + and r12, r12, #0x2 @ check for SDRC idle + cmp r12, #2 bne wait_sdrc_idle bx lr configure_core_dpll: - ldr r4, omap3_cm_clksel1_pll - ldr r5, [r4] - ldr r6, core_m2_mask_val @ modify m2 for core dpll - and r5, r5, r6 - orr r5, r5, r3, lsl #0x1B @ r3 contains the M2 val - str r5, [r4] - mov r5, #0x800 @ wait for the clock to stabilise + ldr r11, omap3_cm_clksel1_pll + ldr r12, [r11] + ldr r10, core_m2_mask_val @ modify m2 for core dpll + and r12, r12, r10 + orr r12, r12, r3, lsl #0x1B @ r3 contains the M2 val + str r12, [r11] + ldr r12, [r11] @ posted-write barrier for CM + mov r12, #0x800 @ wait for the clock to stabilise cmp r3, #2 bne wait_clk_stable bx lr wait_clk_stable: - subs r5, r5, #1 + subs r12, r12, #1 bne wait_clk_stable nop nop @@ -116,42 +121,42 @@ wait_clk_stable: nop bx lr enable_sdrc: - ldr r4, omap3_cm_iclken1_core - ldr r5, [r4] - orr r5, r5, #0x2 @ enable iclk bit for SDRC - str r5, [r4] + ldr r11, omap3_cm_iclken1_core + ldr r12, [r11] + orr r12, r12, #0x2 @ enable iclk bit for SDRC + str r12, [r11] wait_sdrc_idle1: - ldr r4, omap3_cm_idlest1_core - ldr r5, [r4] - and r5, r5, #0x2 - cmp r5, #0 + ldr r11, omap3_cm_idlest1_core + ldr r12, [r11] + and r12, r12, #0x2 + cmp r12, #0 bne wait_sdrc_idle1 - ldr r4, omap3_sdrc_power - ldr r5, [r4] - bic r5, r5, #0x40 - str r5, [r4] +restore_sdrc_power_val: + ldr r11, omap3_sdrc_power + str r9, [r11] @ restore SDRC_POWER, no barrier needed bx lr wait_dll_lock: - ldr r4, omap3_sdrc_dlla_status - ldr r5, [r4] - and r5, r5, #0x4 - cmp r5, #0x4 + ldr r11, omap3_sdrc_dlla_status + ldr r12, [r11] + and r12, r12, #0x4 + cmp r12, #0x4 bne wait_dll_lock bx lr wait_dll_unlock: - ldr r4, omap3_sdrc_dlla_status - ldr r5, [r4] - and r5, r5, #0x4 - cmp r5, #0x0 + ldr r11, omap3_sdrc_dlla_status + ldr r12, [r11] + and r12, r12, #0x4 + cmp r12, #0x0 bne wait_dll_unlock bx lr configure_sdrc: - ldr r4, omap3_sdrc_rfr_ctrl - str r0, [r4] - ldr r4, omap3_sdrc_actim_ctrla - str r1, [r4] - ldr r4, omap3_sdrc_actim_ctrlb - str r2, [r4] + ldr r11, omap3_sdrc_rfr_ctrl + str r0, [r11] + ldr r11, omap3_sdrc_actim_ctrla + str r1, [r11] + ldr r11, omap3_sdrc_actim_ctrlb + str r2, [r11] + ldr r2, [r11] @ posted-write barrier for SDRC bx lr omap3_sdrc_power: diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c index f36aba12090..97eeeebcb06 100644 --- a/arch/arm/mach-omap2/timer-gp.c +++ b/arch/arm/mach-omap2/timer-gp.c @@ -17,9 +17,10 @@ * * Some parts based off of TI's 24xx code: * - * Copyright (C) 2004 Texas Instruments, Inc. + * Copyright (C) 2004-2009 Texas Instruments, Inc. * * Roughly modelled after the OMAP1 MPU timer code. + * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -37,6 +38,7 @@ #include <asm/mach/time.h> #include <mach/dmtimer.h> +#include <asm/localtimer.h> /* MAX_GPTIMER_ID: number of GPTIMERs on the chip */ #define MAX_GPTIMER_ID 12 @@ -82,7 +84,8 @@ static void omap2_gp_timer_set_mode(enum clock_event_mode mode, case CLOCK_EVT_MODE_PERIODIC: period = clk_get_rate(omap_dm_timer_get_fclk(gptimer)) / HZ; period -= 1; - + if (cpu_is_omap44xx()) + period = 0xff; /* FIXME: */ omap_dm_timer_set_load_start(gptimer, 1, 0xffffffff - period); break; case CLOCK_EVT_MODE_ONESHOT: @@ -145,6 +148,9 @@ static void __init omap2_gp_clockevent_init(void) "timer-gp: omap_dm_timer_set_source() failed\n"); tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer)); + if (cpu_is_omap44xx()) + /* Assuming 32kHz clk is driving GPT1 */ + tick_rate = 32768; /* FIXME: */ pr_info("OMAP clockevent source: GPTIMER%d at %u Hz\n", gptimer_id, tick_rate); @@ -224,6 +230,9 @@ static void __init omap2_gp_clocksource_init(void) static void __init omap2_gp_timer_init(void) { +#ifdef CONFIG_LOCAL_TIMERS + twd_base = IO_ADDRESS(OMAP44XX_LOCAL_TWD_BASE); +#endif omap_dm_timer_init(); omap2_gp_clockevent_init(); diff --git a/arch/arm/mach-omap2/timer-mpu.c b/arch/arm/mach-omap2/timer-mpu.c new file mode 100644 index 00000000000..c1a650a9910 --- /dev/null +++ b/arch/arm/mach-omap2/timer-mpu.c @@ -0,0 +1,34 @@ +/* + * The MPU local timer source file. In OMAP4, both cortex-a9 cores have + * own timer in it's MPU domain. These timers will be driving the + * linux kernel SMP tick framework when active. These timers are not + * part of the wake up domain. + * + * Copyright (C) 2009 Texas Instruments, Inc. + * + * Author: + * Santosh Shilimkar <santosh.shilimkar@ti.com> + * + * This file is based on arm realview smp platform file. + * Copyright (C) 2002 ARM Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/clockchips.h> +#include <asm/irq.h> +#include <asm/smp_twd.h> +#include <asm/localtimer.h> + +/* + * Setup the local clock events for a CPU. + */ +void __cpuinit local_timer_setup(struct clock_event_device *evt) +{ + evt->irq = INT_44XX_LOCALTIMER_IRQ; + twd_timer_setup(evt); +} + diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index 34a56a136ef..d85296dc896 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -28,10 +28,20 @@ #include <mach/hardware.h> #include <mach/irqs.h> -#include <mach/pm.h> #include <mach/mux.h> #include <mach/usb.h> +#define OTG_SYSCONFIG (OMAP34XX_HSUSB_OTG_BASE + 0x404) + +static void __init usb_musb_pm_init(void) +{ + /* Ensure force-idle mode for OTG controller */ + if (cpu_is_omap34xx()) + omap_writel(0, OTG_SYSCONFIG); +} + +#ifdef CONFIG_USB_MUSB_SOC + static struct resource musb_resources[] = { [0] = { /* start and end set dynamically */ .flags = IORESOURCE_MEM, @@ -184,4 +194,13 @@ void __init usb_musb_init(void) printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n"); return; } + + usb_musb_pm_init(); +} + +#else +void __init usb_musb_init(void) +{ + usb_musb_pm_init(); } +#endif /* CONFIG_USB_MUSB_SOC */ |