diff options
Diffstat (limited to 'arch/arm/mach-exynos')
27 files changed, 1460 insertions, 1854 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 855d4a7b462..8f9b66c4ac7 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -7,91 +7,99 @@ # Configuration options for the EXYNOS4 +menuconfig ARCH_EXYNOS + bool "Samsung EXYNOS" if ARCH_MULTI_V7 + select ARCH_HAS_BANDGAP + select ARCH_HAS_HOLES_MEMORYMODEL + select ARCH_REQUIRE_GPIOLIB + select ARM_AMBA + select ARM_GIC + select COMMON_CLK_SAMSUNG + select HAVE_ARM_SCU if SMP + select HAVE_S3C2410_I2C if I2C + select HAVE_S3C2410_WATCHDOG if WATCHDOG + select HAVE_S3C_RTC if RTC_CLASS + select PINCTRL + select PINCTRL_EXYNOS + select PM_GENERIC_DOMAINS if PM_RUNTIME + select S5P_DEV_MFC + select SRAM + help + Support for SAMSUNG EXYNOS SoCs (EXYNOS4/5) + if ARCH_EXYNOS -menu "SAMSUNG EXYNOS SoCs Support" +config ARCH_EXYNOS3 + bool "SAMSUNG EXYNOS3" + select ARM_CPU_SUSPEND if PM + help + Samsung EXYNOS3 (Crotex-A7) SoC based systems config ARCH_EXYNOS4 bool "SAMSUNG EXYNOS4" default y + select ARM_CPU_SUSPEND if PM_SLEEP + select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210 + select CPU_EXYNOS4210 select GIC_NON_BANKED - select HAVE_ARM_SCU if SMP - select HAVE_SMP + select KEYBOARD_SAMSUNG if INPUT_KEYBOARD select MIGHT_HAVE_CACHE_L2X0 - select PINCTRL help - Samsung EXYNOS4 SoCs based systems + Samsung EXYNOS4 (Cortex-A9) SoC based systems config ARCH_EXYNOS5 bool "SAMSUNG EXYNOS5" - select HAVE_ARM_SCU if SMP - select HAVE_SMP - select PINCTRL + default y help - Samsung EXYNOS5 (Cortex-A15) SoC based systems + Samsung EXYNOS5 (Cortex-A15/A7) SoC based systems comment "EXYNOS SoCs" +config SOC_EXYNOS3250 + bool "SAMSUNG EXYNOS3250" + default y + depends on ARCH_EXYNOS3 + config CPU_EXYNOS4210 bool "SAMSUNG EXYNOS4210" default y depends on ARCH_EXYNOS4 - select ARM_CPU_SUSPEND if PM - select PINCTRL_EXYNOS - select PM_GENERIC_DOMAINS if PM - select S5P_PM if PM - select S5P_SLEEP if PM - select SAMSUNG_DMADEV - help - Enable EXYNOS4210 CPU support config SOC_EXYNOS4212 bool "SAMSUNG EXYNOS4212" default y depends on ARCH_EXYNOS4 - select PINCTRL_EXYNOS - select S5P_PM if PM - select S5P_SLEEP if PM - select SAMSUNG_DMADEV - help - Enable EXYNOS4212 SoC support config SOC_EXYNOS4412 bool "SAMSUNG EXYNOS4412" default y depends on ARCH_EXYNOS4 - select PINCTRL_EXYNOS - select SAMSUNG_DMADEV - help - Enable EXYNOS4412 SoC support config SOC_EXYNOS5250 bool "SAMSUNG EXYNOS5250" default y depends on ARCH_EXYNOS5 - select PINCTRL_EXYNOS - select PM_GENERIC_DOMAINS if PM - select S5P_PM if PM - select S5P_SLEEP if PM - select S5P_DEV_MFC - select SAMSUNG_DMADEV - help - Enable EXYNOS5250 SoC support + +config SOC_EXYNOS5260 + bool "SAMSUNG EXYNOS5260" + default y + depends on ARCH_EXYNOS5 + +config SOC_EXYNOS5410 + bool "SAMSUNG EXYNOS5410" + default y + depends on ARCH_EXYNOS5 config SOC_EXYNOS5420 bool "SAMSUNG EXYNOS5420" default y depends on ARCH_EXYNOS5 - select PM_GENERIC_DOMAINS if PM - select S5P_PM if PM - select S5P_SLEEP if PM - help - Enable EXYNOS5420 SoC support config SOC_EXYNOS5440 bool "SAMSUNG EXYNOS5440" default y depends on ARCH_EXYNOS5 + select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE select ARCH_HAS_OPP select HAVE_ARM_ARCH_TIMER select AUTO_ZRELADDR @@ -102,35 +110,17 @@ config SOC_EXYNOS5440 help Enable EXYNOS5440 SoC support -comment "Flattened Device Tree based board for EXYNOS SoCs" - -config MACH_EXYNOS4_DT - bool "Samsung Exynos4 Machine using device tree" +config SOC_EXYNOS5800 + bool "SAMSUNG EXYNOS5800" default y - depends on ARCH_EXYNOS4 - select ARM_AMBA - select CLKSRC_OF - select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210 - select CPU_EXYNOS4210 - select KEYBOARD_SAMSUNG if INPUT_KEYBOARD - select S5P_DEV_MFC - help - Machine support for Samsung Exynos4 machine with device tree enabled. - Select this if a fdt blob is available for the Exynos4 SoC based board. - Note: This is under development and not all peripherals can be supported - with this machine file. + depends on SOC_EXYNOS5420 -config MACH_EXYNOS5_DT - bool "SAMSUNG EXYNOS5 Machine using device tree" - default y - depends on ARCH_EXYNOS5 - select ARM_AMBA - select CLKSRC_OF - select USB_ARCH_HAS_XHCI +config EXYNOS5420_MCPM + bool "Exynos5420 Multi-Cluster PM support" + depends on MCPM && SOC_EXYNOS5420 + select ARM_CCI help - Machine support for Samsung EXYNOS5 machine with device tree enabled. - Select this if a fdt blob is available for the EXYNOS5 SoC based board. - -endmenu + This is needed to provide CPU and cluster power management + on Exynos5420 implementing big.LITTLE. endif diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index e970a7a4e27..788f26d2114 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -5,6 +5,8 @@ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include + obj-y := obj-m := obj-n := @@ -12,25 +14,18 @@ obj- := # Core -obj-$(CONFIG_ARCH_EXYNOS) += common.o +obj-$(CONFIG_ARCH_EXYNOS) += exynos.o pmu.o exynos-smc.o firmware.o -obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_PM_SLEEP) += pm.o sleep.o obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o -obj-$(CONFIG_CPU_IDLE) += cpuidle.o - -obj-$(CONFIG_ARCH_EXYNOS) += pmu.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o - -obj-$(CONFIG_ARCH_EXYNOS) += exynos-smc.o -obj-$(CONFIG_ARCH_EXYNOS) += firmware.o +CFLAGS_hotplug.o += -march=armv7-a plus_sec := $(call as-instr,.arch_extension sec,+sec) AFLAGS_exynos-smc.o :=-Wa,-march=armv7-a$(plus_sec) -# machine support - -obj-$(CONFIG_MACH_EXYNOS4_DT) += mach-exynos4-dt.o -obj-$(CONFIG_MACH_EXYNOS5_DT) += mach-exynos5-dt.o +obj-$(CONFIG_EXYNOS5420_MCPM) += mcpm-exynos.o +CFLAGS_mcpm-exynos.o += -march=armv7-a diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c deleted file mode 100644 index 164685bd25c..00000000000 --- a/arch/arm/mach-exynos/common.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Common Codes for EXYNOS - * - * 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/bitops.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/irqchip.h> -#include <linux/io.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <clocksource/samsung_pwm.h> -#include <linux/sched.h> -#include <linux/serial_core.h> -#include <linux/of.h> -#include <linux/of_fdt.h> -#include <linux/of_irq.h> -#include <linux/export.h> -#include <linux/irqdomain.h> -#include <linux/of_address.h> -#include <linux/clocksource.h> -#include <linux/clk-provider.h> -#include <linux/irqchip/arm-gic.h> -#include <linux/irqchip/chained_irq.h> - -#include <asm/proc-fns.h> -#include <asm/exception.h> -#include <asm/hardware/cache-l2x0.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> -#include <asm/cacheflush.h> - -#include <mach/regs-irq.h> -#include <mach/regs-pmu.h> - -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/regs-serial.h> - -#include "common.h" -#define L2_AUX_VAL 0x7C470001 -#define L2_AUX_MASK 0xC200ffff - -static const char name_exynos4210[] = "EXYNOS4210"; -static const char name_exynos4212[] = "EXYNOS4212"; -static const char name_exynos4412[] = "EXYNOS4412"; -static const char name_exynos5250[] = "EXYNOS5250"; -static const char name_exynos5420[] = "EXYNOS5420"; -static const char name_exynos5440[] = "EXYNOS5440"; - -static void exynos4_map_io(void); -static void exynos5_map_io(void); -static void exynos5440_map_io(void); -static int exynos_init(void); - -static struct cpu_table cpu_ids[] __initdata = { - { - .idcode = EXYNOS4210_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4210, - }, { - .idcode = EXYNOS4212_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4212, - }, { - .idcode = EXYNOS4412_CPU_ID, - .idmask = EXYNOS4_CPU_MASK, - .map_io = exynos4_map_io, - .init = exynos_init, - .name = name_exynos4412, - }, { - .idcode = EXYNOS5250_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5250, - }, { - .idcode = EXYNOS5420_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5_map_io, - .init = exynos_init, - .name = name_exynos5420, - }, { - .idcode = EXYNOS5440_SOC_ID, - .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5440_map_io, - .init = exynos_init, - .name = name_exynos5440, - }, -}; - -/* Initial IO mappings */ - -static struct map_desc exynos4_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_SYS, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSCON), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_TIMER, - .pfn = __phys_to_pfn(EXYNOS4_PA_TIMER), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(EXYNOS4_PA_WATCHDOG), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(EXYNOS4_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SYSTIMER, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSTIMER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_PMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_PMU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COMBINER_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COMBINER), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GIC_CPU, - .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_CPU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_GIC_DIST, - .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_DIST), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS4_PA_UART), - .length = SZ_512K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_CMU, - .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), - .length = SZ_128K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_COREPERI_BASE, - .pfn = __phys_to_pfn(EXYNOS4_PA_COREPERI), - .length = SZ_8K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_L2CC, - .pfn = __phys_to_pfn(EXYNOS4_PA_L2CC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_DMC0, - .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_DMC1, - .pfn = __phys_to_pfn(EXYNOS4_PA_DMC1), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_USB_HSPHY, - .pfn = __phys_to_pfn(EXYNOS4_PA_HSPHY), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4_iodesc0[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM0), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4_iodesc1[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS4_PA_SYSRAM1), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4210_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS4210_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos4x12_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS4x12_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5250_iodesc[] __initdata = { - { - .virtual = (unsigned long)S5P_VA_SYSRAM_NS, - .pfn = __phys_to_pfn(EXYNOS5250_PA_SYSRAM_NS), - .length = SZ_4K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5_iodesc[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_SYS, - .pfn = __phys_to_pfn(EXYNOS5_PA_SYSCON), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_TIMER, - .pfn = __phys_to_pfn(EXYNOS5_PA_TIMER), - .length = SZ_16K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(EXYNOS5_PA_WATCHDOG), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SROMC, - .pfn = __phys_to_pfn(EXYNOS5_PA_SROMC), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_SYSRAM, - .pfn = __phys_to_pfn(EXYNOS5_PA_SYSRAM), - .length = SZ_4K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_CMU, - .pfn = __phys_to_pfn(EXYNOS5_PA_CMU), - .length = 144 * SZ_1K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S5P_VA_PMU, - .pfn = __phys_to_pfn(EXYNOS5_PA_PMU), - .length = SZ_64K, - .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS5_PA_UART), - .length = SZ_512K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5440_iodesc0[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS5440_PA_UART0), - .length = SZ_512K, - .type = MT_DEVICE, - }, -}; - -void exynos4_restart(enum reboot_mode mode, const char *cmd) -{ - __raw_writel(0x1, S5P_SWRESET); -} - -void exynos5_restart(enum reboot_mode mode, const char *cmd) -{ - struct device_node *np; - u32 val; - void __iomem *addr; - - val = 0x1; - addr = EXYNOS_SWRESET; - - if (of_machine_is_compatible("samsung,exynos5440")) { - u32 status; - np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock"); - - addr = of_iomap(np, 0) + 0xbc; - status = __raw_readl(addr); - - addr = of_iomap(np, 0) + 0xcc; - val = __raw_readl(addr); - - val = (val & 0xffff0000) | (status & 0xffff); - } - - __raw_writel(val, addr); -} - -void __init exynos_init_late(void) -{ - if (of_machine_is_compatible("samsung,exynos5440")) - /* to be supported later */ - return; - - exynos_pm_late_initcall(); -} - -static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, - int depth, void *data) -{ - struct map_desc iodesc; - __be32 *reg; - unsigned long len; - - if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") && - !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock")) - return 0; - - reg = of_get_flat_dt_prop(node, "reg", &len); - if (reg == NULL || len != (sizeof(unsigned long) * 2)) - return 0; - - iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); - iodesc.length = be32_to_cpu(reg[1]) - 1; - iodesc.virtual = (unsigned long)S5P_VA_CHIPID; - iodesc.type = MT_DEVICE; - iotable_init(&iodesc, 1); - return 1; -} - -/* - * exynos_map_io - * - * register the standard cpu IO areas - */ - -void __init exynos_init_io(void) -{ - debug_ll_io_init(); - - of_scan_flat_dt(exynos_fdt_map_chipid, NULL); - - /* detect cpu id and rev. */ - s5p_init_cpu(S5P_VA_CHIPID); - - s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); -} - -static void __init exynos4_map_io(void) -{ - iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); - - if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_0) - iotable_init(exynos4_iodesc0, ARRAY_SIZE(exynos4_iodesc0)); - else - iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); - - if (soc_is_exynos4210()) - iotable_init(exynos4210_iodesc, ARRAY_SIZE(exynos4210_iodesc)); - if (soc_is_exynos4212() || soc_is_exynos4412()) - iotable_init(exynos4x12_iodesc, ARRAY_SIZE(exynos4x12_iodesc)); -} - -static void __init exynos5_map_io(void) -{ - iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); - - if (soc_is_exynos5250()) - iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc)); -} - -static void __init exynos5440_map_io(void) -{ - iotable_init(exynos5440_iodesc0, ARRAY_SIZE(exynos5440_iodesc0)); -} - -void __init exynos_init_time(void) -{ - of_clk_init(NULL); - clocksource_of_init(); -} - -struct bus_type exynos_subsys = { - .name = "exynos-core", - .dev_name = "exynos-core", -}; - -static struct device exynos4_dev = { - .bus = &exynos_subsys, -}; - -static int __init exynos_core_init(void) -{ - return subsys_system_register(&exynos_subsys, NULL); -} -core_initcall(exynos_core_init); - -static int __init exynos4_l2x0_cache_init(void) -{ - int ret; - - ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); - if (ret) - return ret; - - l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); - clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long)); - return 0; -} -early_initcall(exynos4_l2x0_cache_init); - -static int __init exynos_init(void) -{ - printk(KERN_INFO "EXYNOS: Initializing architecture\n"); - - return device_register(&exynos4_dev); -} diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index 3e156bcddcb..1ee91763fa7 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -15,65 +15,129 @@ #include <linux/reboot.h> #include <linux/of.h> -void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1); -void exynos_init_time(void); -extern unsigned long xxti_f, xusbxti_f; +#define EXYNOS3250_SOC_ID 0xE3472000 +#define EXYNOS3_SOC_MASK 0xFFFFF000 + +#define EXYNOS4210_CPU_ID 0x43210000 +#define EXYNOS4212_CPU_ID 0x43220000 +#define EXYNOS4412_CPU_ID 0xE4412200 +#define EXYNOS4_CPU_MASK 0xFFFE0000 + +#define EXYNOS5250_SOC_ID 0x43520000 +#define EXYNOS5410_SOC_ID 0xE5410000 +#define EXYNOS5420_SOC_ID 0xE5420000 +#define EXYNOS5440_SOC_ID 0xE5440000 +#define EXYNOS5800_SOC_ID 0xE5422000 +#define EXYNOS5_SOC_MASK 0xFFFFF000 + +extern unsigned long samsung_cpu_id; + +#define IS_SAMSUNG_CPU(name, id, mask) \ +static inline int is_samsung_##name(void) \ +{ \ + return ((samsung_cpu_id & mask) == (id & mask)); \ +} + +IS_SAMSUNG_CPU(exynos3250, EXYNOS3250_SOC_ID, EXYNOS3_SOC_MASK) +IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK) +IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5410, EXYNOS5410_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5420, EXYNOS5420_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK) +IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK) + +#if defined(CONFIG_SOC_EXYNOS3250) +# define soc_is_exynos3250() is_samsung_exynos3250() +#else +# define soc_is_exynos3250() 0 +#endif -struct map_desc; -void exynos_init_io(void); -void exynos4_restart(enum reboot_mode mode, const char *cmd); -void exynos5_restart(enum reboot_mode mode, const char *cmd); -void exynos_init_late(void); +#if defined(CONFIG_CPU_EXYNOS4210) +# define soc_is_exynos4210() is_samsung_exynos4210() +#else +# define soc_is_exynos4210() 0 +#endif -/* ToDo: remove these after migrating legacy exynos4 platforms to dt */ -void exynos4_clk_init(struct device_node *np, int is_exynos4210, void __iomem *reg_base, unsigned long xom); -void exynos4_clk_register_fixed_ext(unsigned long, unsigned long); +#if defined(CONFIG_SOC_EXYNOS4212) +# define soc_is_exynos4212() is_samsung_exynos4212() +#else +# define soc_is_exynos4212() 0 +#endif -void exynos_firmware_init(void); +#if defined(CONFIG_SOC_EXYNOS4412) +# define soc_is_exynos4412() is_samsung_exynos4412() +#else +# define soc_is_exynos4412() 0 +#endif -void exynos_set_timer_source(u8 channels); +#define EXYNOS4210_REV_0 (0x0) +#define EXYNOS4210_REV_1_0 (0x10) +#define EXYNOS4210_REV_1_1 (0x11) -#ifdef CONFIG_PM_GENERIC_DOMAINS -int exynos_pm_late_initcall(void); +#if defined(CONFIG_SOC_EXYNOS5250) +# define soc_is_exynos5250() is_samsung_exynos5250() #else -static inline int exynos_pm_late_initcall(void) { return 0; } +# define soc_is_exynos5250() 0 #endif -#ifdef CONFIG_ARCH_EXYNOS4 -void exynos4_register_clocks(void); -void exynos4_setup_clocks(void); +#if defined(CONFIG_SOC_EXYNOS5410) +# define soc_is_exynos5410() is_samsung_exynos5410() +#else +# define soc_is_exynos5410() 0 +#endif +#if defined(CONFIG_SOC_EXYNOS5420) +# define soc_is_exynos5420() is_samsung_exynos5420() #else -#define exynos4_register_clocks() -#define exynos4_setup_clocks() +# define soc_is_exynos5420() 0 #endif -#ifdef CONFIG_ARCH_EXYNOS5 -void exynos5_register_clocks(void); -void exynos5_setup_clocks(void); +#if defined(CONFIG_SOC_EXYNOS5440) +# define soc_is_exynos5440() is_samsung_exynos5440() +#else +# define soc_is_exynos5440() 0 +#endif +#if defined(CONFIG_SOC_EXYNOS5800) +# define soc_is_exynos5800() is_samsung_exynos5800() #else -#define exynos5_register_clocks() -#define exynos5_setup_clocks() +# define soc_is_exynos5800() 0 #endif -#ifdef CONFIG_CPU_EXYNOS4210 -void exynos4210_register_clocks(void); +#define soc_is_exynos4() (soc_is_exynos4210() || soc_is_exynos4212() || \ + soc_is_exynos4412()) +#define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5410() || \ + soc_is_exynos5420() || soc_is_exynos5800()) +void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1); + +struct map_desc; +extern void __iomem *sysram_ns_base_addr; +extern void __iomem *sysram_base_addr; +void exynos_init_io(void); +void exynos_restart(enum reboot_mode mode, const char *cmd); +void exynos_sysram_init(void); +void exynos_cpuidle_init(void); +void exynos_cpufreq_init(void); +void exynos_init_late(void); + +void exynos_firmware_init(void); + +#ifdef CONFIG_PINCTRL_EXYNOS +extern u32 exynos_get_eint_wake_mask(void); #else -#define exynos4210_register_clocks() +static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; } #endif -#ifdef CONFIG_SOC_EXYNOS4212 -void exynos4212_register_clocks(void); - +#ifdef CONFIG_PM_SLEEP +extern void __init exynos_pm_init(void); #else -#define exynos4212_register_clocks() +static inline void exynos_pm_init(void) {} #endif -struct device_node; -void combiner_init(void __iomem *combiner_base, struct device_node *np, - unsigned int max_nr, int irq_base); +extern void exynos_cpu_resume(void); extern struct smp_operations exynos_smp_ops; @@ -90,13 +154,21 @@ enum sys_powerdown { NUM_SYS_POWERDOWN, }; -extern unsigned long l2x0_regs_phys; struct exynos_pmu_conf { void __iomem *reg; unsigned int val[NUM_SYS_POWERDOWN]; }; extern void exynos_sys_powerdown_conf(enum sys_powerdown mode); -extern void s3c_cpu_resume(void); +extern void exynos_cpu_power_down(int cpu); +extern void exynos_cpu_power_up(int cpu); +extern int exynos_cpu_power_state(int cpu); +extern void exynos_cluster_power_down(int cluster); +extern void exynos_cluster_power_up(int cluster); +extern int exynos_cluster_power_state(int cluster); +extern void exynos_enter_aftr(void); + +extern void s5p_init_cpu(void __iomem *cpuid_addr); +extern unsigned int samsung_rev(void); #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c deleted file mode 100644 index 17a18ff3d71..00000000000 --- a/arch/arm/mach-exynos/cpuidle.c +++ /dev/null @@ -1,225 +0,0 @@ -/* linux/arch/arm/mach-exynos4/cpuidle.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.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/cpuidle.h> -#include <linux/cpu_pm.h> -#include <linux/io.h> -#include <linux/export.h> -#include <linux/time.h> - -#include <asm/proc-fns.h> -#include <asm/smp_scu.h> -#include <asm/suspend.h> -#include <asm/unified.h> -#include <asm/cpuidle.h> -#include <mach/regs-clock.h> -#include <mach/regs-pmu.h> - -#include <plat/cpu.h> - -#include "common.h" - -#define REG_DIRECTGO_ADDR (samsung_rev() == EXYNOS4210_REV_1_1 ? \ - S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ - (S5P_VA_SYSRAM + 0x24) : S5P_INFORM0)) -#define REG_DIRECTGO_FLAG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ - S5P_INFORM6 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ - (S5P_VA_SYSRAM + 0x20) : S5P_INFORM1)) - -#define S5P_CHECK_AFTR 0xFCBA0D10 - -static int exynos4_enter_lowpower(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index); - -static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device); - -static struct cpuidle_driver exynos4_idle_driver = { - .name = "exynos4_idle", - .owner = THIS_MODULE, - .states = { - [0] = ARM_CPUIDLE_WFI_STATE, - [1] = { - .enter = exynos4_enter_lowpower, - .exit_latency = 300, - .target_residency = 100000, - .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "C1", - .desc = "ARM power down", - }, - }, - .state_count = 2, - .safe_state_index = 0, -}; - -/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ -static void exynos4_set_wakeupmask(void) -{ - __raw_writel(0x0000ff3e, S5P_WAKEUP_MASK); -} - -static unsigned int g_pwr_ctrl, g_diag_reg; - -static void save_cpu_arch_register(void) -{ - /*read power control register*/ - asm("mrc p15, 0, %0, c15, c0, 0" : "=r"(g_pwr_ctrl) : : "cc"); - /*read diagnostic register*/ - asm("mrc p15, 0, %0, c15, c0, 1" : "=r"(g_diag_reg) : : "cc"); - return; -} - -static void restore_cpu_arch_register(void) -{ - /*write power control register*/ - asm("mcr p15, 0, %0, c15, c0, 0" : : "r"(g_pwr_ctrl) : "cc"); - /*write diagnostic register*/ - asm("mcr p15, 0, %0, c15, c0, 1" : : "r"(g_diag_reg) : "cc"); - return; -} - -static int idle_finisher(unsigned long flags) -{ - cpu_do_idle(); - return 1; -} - -static int exynos4_enter_core0_aftr(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - unsigned long tmp; - - exynos4_set_wakeupmask(); - - /* Set value of power down register for aftr mode */ - exynos_sys_powerdown_conf(SYS_AFTR); - - __raw_writel(virt_to_phys(s3c_cpu_resume), REG_DIRECTGO_ADDR); - __raw_writel(S5P_CHECK_AFTR, REG_DIRECTGO_FLAG); - - save_cpu_arch_register(); - - /* Setting Central Sequence Register for power down mode */ - tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); - tmp &= ~S5P_CENTRAL_LOWPWR_CFG; - __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); - - cpu_pm_enter(); - cpu_suspend(0, idle_finisher); - -#ifdef CONFIG_SMP - if (!soc_is_exynos5250()) - scu_enable(S5P_VA_SCU); -#endif - cpu_pm_exit(); - - restore_cpu_arch_register(); - - /* - * If PMU failed while entering sleep mode, WFI will be - * ignored by PMU and then exiting cpu_do_idle(). - * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically - * in this situation. - */ - tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); - if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) { - tmp |= S5P_CENTRAL_LOWPWR_CFG; - __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); - } - - /* Clear wakeup state register */ - __raw_writel(0x0, S5P_WAKEUP_STAT); - - return index; -} - -static int exynos4_enter_lowpower(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) -{ - int new_index = index; - - /* This mode only can be entered when other core's are offline */ - if (num_online_cpus() > 1) - new_index = drv->safe_state_index; - - if (new_index == 0) - return arm_cpuidle_simple_enter(dev, drv, new_index); - else - return exynos4_enter_core0_aftr(dev, drv, new_index); -} - -static void __init exynos5_core_down_clk(void) -{ - unsigned int tmp; - - /* - * Enable arm clock down (in idle) and set arm divider - * ratios in WFI/WFE state. - */ - tmp = PWR_CTRL1_CORE2_DOWN_RATIO | \ - PWR_CTRL1_CORE1_DOWN_RATIO | \ - PWR_CTRL1_DIV2_DOWN_EN | \ - PWR_CTRL1_DIV1_DOWN_EN | \ - PWR_CTRL1_USE_CORE1_WFE | \ - PWR_CTRL1_USE_CORE0_WFE | \ - PWR_CTRL1_USE_CORE1_WFI | \ - PWR_CTRL1_USE_CORE0_WFI; - __raw_writel(tmp, EXYNOS5_PWR_CTRL1); - - /* - * Enable arm clock up (on exiting idle). Set arm divider - * ratios when not in idle along with the standby duration - * ratios. - */ - tmp = PWR_CTRL2_DIV2_UP_EN | \ - PWR_CTRL2_DIV1_UP_EN | \ - PWR_CTRL2_DUR_STANDBY2_VAL | \ - PWR_CTRL2_DUR_STANDBY1_VAL | \ - PWR_CTRL2_CORE2_UP_RATIO | \ - PWR_CTRL2_CORE1_UP_RATIO; - __raw_writel(tmp, EXYNOS5_PWR_CTRL2); -} - -static int __init exynos4_init_cpuidle(void) -{ - int cpu_id, ret; - struct cpuidle_device *device; - - if (soc_is_exynos5250()) - exynos5_core_down_clk(); - - ret = cpuidle_register_driver(&exynos4_idle_driver); - if (ret) { - printk(KERN_ERR "CPUidle failed to register driver\n"); - return ret; - } - - for_each_online_cpu(cpu_id) { - device = &per_cpu(exynos4_cpuidle_device, cpu_id); - device->cpu = cpu_id; - - /* Support IDLE only */ - if (cpu_id != 0) - device->state_count = 1; - - ret = cpuidle_register_device(device); - if (ret) { - printk(KERN_ERR "CPUidle register device failed\n"); - return ret; - } - } - - return 0; -} -device_initcall(exynos4_init_cpuidle); diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c new file mode 100644 index 00000000000..66c9b9614f3 --- /dev/null +++ b/arch/arm/mach-exynos/exynos.c @@ -0,0 +1,361 @@ +/* + * SAMSUNG EXYNOS Flattened Device Tree enabled machine + * + * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd. + * http://www.samsung.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/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/serial_s3c.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_fdt.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/pm_domain.h> + +#include <asm/cacheflush.h> +#include <asm/hardware/cache-l2x0.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/memory.h> + +#include "common.h" +#include "mfc.h" +#include "regs-pmu.h" + +static struct map_desc exynos4_iodesc[] __initdata = { + { + .virtual = (unsigned long)S3C_VA_SYS, + .pfn = __phys_to_pfn(EXYNOS4_PA_SYSCON), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_TIMER, + .pfn = __phys_to_pfn(EXYNOS4_PA_TIMER), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_WATCHDOG, + .pfn = __phys_to_pfn(EXYNOS4_PA_WATCHDOG), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_SROMC, + .pfn = __phys_to_pfn(EXYNOS4_PA_SROMC), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_SYSTIMER, + .pfn = __phys_to_pfn(EXYNOS4_PA_SYSTIMER), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_PMU, + .pfn = __phys_to_pfn(EXYNOS4_PA_PMU), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_COMBINER_BASE, + .pfn = __phys_to_pfn(EXYNOS4_PA_COMBINER), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_GIC_CPU, + .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_CPU), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_GIC_DIST, + .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_DIST), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_CMU, + .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), + .length = SZ_128K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_COREPERI_BASE, + .pfn = __phys_to_pfn(EXYNOS4_PA_COREPERI), + .length = SZ_8K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_L2CC, + .pfn = __phys_to_pfn(EXYNOS4_PA_L2CC), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_DMC0, + .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_DMC1, + .pfn = __phys_to_pfn(EXYNOS4_PA_DMC1), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_USB_HSPHY, + .pfn = __phys_to_pfn(EXYNOS4_PA_HSPHY), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +static struct map_desc exynos5_iodesc[] __initdata = { + { + .virtual = (unsigned long)S3C_VA_SYS, + .pfn = __phys_to_pfn(EXYNOS5_PA_SYSCON), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_TIMER, + .pfn = __phys_to_pfn(EXYNOS5_PA_TIMER), + .length = SZ_16K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S3C_VA_WATCHDOG, + .pfn = __phys_to_pfn(EXYNOS5_PA_WATCHDOG), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_SROMC, + .pfn = __phys_to_pfn(EXYNOS5_PA_SROMC), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_CMU, + .pfn = __phys_to_pfn(EXYNOS5_PA_CMU), + .length = 144 * SZ_1K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_PMU, + .pfn = __phys_to_pfn(EXYNOS5_PA_PMU), + .length = SZ_64K, + .type = MT_DEVICE, + }, +}; + +void exynos_restart(enum reboot_mode mode, const char *cmd) +{ + struct device_node *np; + u32 val = 0x1; + void __iomem *addr = EXYNOS_SWRESET; + + if (of_machine_is_compatible("samsung,exynos5440")) { + u32 status; + np = of_find_compatible_node(NULL, NULL, "samsung,exynos5440-clock"); + + addr = of_iomap(np, 0) + 0xbc; + status = __raw_readl(addr); + + addr = of_iomap(np, 0) + 0xcc; + val = __raw_readl(addr); + + val = (val & 0xffff0000) | (status & 0xffff); + } + + __raw_writel(val, addr); +} + +static struct platform_device exynos_cpuidle = { + .name = "exynos_cpuidle", + .dev.platform_data = exynos_enter_aftr, + .id = -1, +}; + +void __init exynos_cpuidle_init(void) +{ + if (soc_is_exynos4210() || soc_is_exynos5250()) + platform_device_register(&exynos_cpuidle); +} + +void __init exynos_cpufreq_init(void) +{ + platform_device_register_simple("exynos-cpufreq", -1, NULL, 0); +} + +void __iomem *sysram_base_addr; +void __iomem *sysram_ns_base_addr; + +void __init exynos_sysram_init(void) +{ + struct device_node *node; + + for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram") { + if (!of_device_is_available(node)) + continue; + sysram_base_addr = of_iomap(node, 0); + break; + } + + for_each_compatible_node(node, NULL, "samsung,exynos4210-sysram-ns") { + if (!of_device_is_available(node)) + continue; + sysram_ns_base_addr = of_iomap(node, 0); + break; + } +} + +void __init exynos_init_late(void) +{ + if (of_machine_is_compatible("samsung,exynos5440")) + /* to be supported later */ + return; + + pm_genpd_poweroff_unused(); + exynos_pm_init(); +} + +static int __init exynos_fdt_map_chipid(unsigned long node, const char *uname, + int depth, void *data) +{ + struct map_desc iodesc; + const __be32 *reg; + int len; + + if (!of_flat_dt_is_compatible(node, "samsung,exynos4210-chipid") && + !of_flat_dt_is_compatible(node, "samsung,exynos5440-clock")) + return 0; + + reg = of_get_flat_dt_prop(node, "reg", &len); + if (reg == NULL || len != (sizeof(unsigned long) * 2)) + return 0; + + iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0])); + iodesc.length = be32_to_cpu(reg[1]) - 1; + iodesc.virtual = (unsigned long)S5P_VA_CHIPID; + iodesc.type = MT_DEVICE; + iotable_init(&iodesc, 1); + return 1; +} + +/* + * exynos_map_io + * + * register the standard cpu IO areas + */ +static void __init exynos_map_io(void) +{ + if (soc_is_exynos4()) + iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc)); + + if (soc_is_exynos5()) + iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc)); +} + +void __init exynos_init_io(void) +{ + debug_ll_io_init(); + + of_scan_flat_dt(exynos_fdt_map_chipid, NULL); + + /* detect cpu id and rev. */ + s5p_init_cpu(S5P_VA_CHIPID); + + exynos_map_io(); +} + +static void __init exynos_dt_machine_init(void) +{ + struct device_node *i2c_np; + const char *i2c_compat = "samsung,s3c2440-i2c"; + unsigned int tmp; + int id; + + /* + * Exynos5's legacy i2c controller and new high speed i2c + * controller have muxed interrupt sources. By default the + * interrupts for 4-channel HS-I2C controller are enabled. + * If node for first four channels of legacy i2c controller + * are available then re-configure the interrupts via the + * system register. + */ + if (soc_is_exynos5()) { + for_each_compatible_node(i2c_np, NULL, i2c_compat) { + if (of_device_is_available(i2c_np)) { + id = of_alias_get_id(i2c_np, "i2c"); + if (id < 4) { + tmp = readl(EXYNOS5_SYS_I2C_CFG); + writel(tmp & ~(0x1 << id), + EXYNOS5_SYS_I2C_CFG); + } + } + } + } + + /* + * This is called from smp_prepare_cpus if we've built for SMP, but + * we still need to set it up for PM and firmware ops if not. + */ + if (!IS_ENABLED(CONFIG_SMP)) + exynos_sysram_init(); + + exynos_cpuidle_init(); + exynos_cpufreq_init(); + + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); +} + +static char const *exynos_dt_compat[] __initconst = { + "samsung,exynos3", + "samsung,exynos3250", + "samsung,exynos4", + "samsung,exynos4210", + "samsung,exynos4212", + "samsung,exynos4412", + "samsung,exynos5", + "samsung,exynos5250", + "samsung,exynos5260", + "samsung,exynos5420", + "samsung,exynos5440", + NULL +}; + +static void __init exynos_reserve(void) +{ +#ifdef CONFIG_S5P_DEV_MFC + int i; + char *mfc_mem[] = { + "samsung,mfc-v5", + "samsung,mfc-v6", + "samsung,mfc-v7", + }; + + for (i = 0; i < ARRAY_SIZE(mfc_mem); i++) + if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i])) + break; +#endif +} + +static void __init exynos_dt_fixup(void) +{ + /* + * Some versions of uboot pass garbage entries in the memory node, + * use the old CONFIG_ARM_NR_BANKS + */ + of_fdt_limit_memory(8); +} + +DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)") + /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ + /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ + .l2c_aux_val = 0x3c400001, + .l2c_aux_mask = 0xc20fffff, + .smp = smp_ops(exynos_smp_ops), + .map_io = exynos_init_io, + .init_early = exynos_firmware_init, + .init_machine = exynos_dt_machine_init, + .init_late = exynos_init_late, + .dt_compat = exynos_dt_compat, + .restart = exynos_restart, + .reserve = exynos_reserve, + .dt_fixup = exynos_dt_fixup, +MACHINE_END diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c index 932129ef26c..e8797bb7887 100644 --- a/arch/arm/mach-exynos/firmware.c +++ b/arch/arm/mach-exynos/firmware.c @@ -18,6 +18,7 @@ #include <mach/map.h> +#include "common.h" #include "smc.h" static int exynos_do_idle(void) @@ -28,13 +29,41 @@ static int exynos_do_idle(void) static int exynos_cpu_boot(int cpu) { + /* + * Exynos3250 doesn't need to send smc command for secondary CPU boot + * because Exynos3250 removes WFE in secure mode. + */ + if (soc_is_exynos3250()) + return 0; + + /* + * The second parameter of SMC_CMD_CPU1BOOT command means CPU id. + * But, Exynos4212 has only one secondary CPU so second parameter + * isn't used for informing secure firmware about CPU id. + */ + if (soc_is_exynos4212()) + cpu = 0; + exynos_smc(SMC_CMD_CPU1BOOT, cpu, 0, 0); return 0; } static int exynos_set_cpu_boot_addr(int cpu, unsigned long boot_addr) { - void __iomem *boot_reg = S5P_VA_SYSRAM_NS + 0x1c + 4*cpu; + void __iomem *boot_reg; + + if (!sysram_ns_base_addr) + return -ENODEV; + + boot_reg = sysram_ns_base_addr + 0x1c; + + /* + * Almost all Exynos-series of SoCs that run in secure mode don't need + * additional offset for every CPU, with Exynos4412 being the only + * exception. + */ + if (soc_is_exynos4412()) + boot_reg += 4 * cpu; __raw_writel(boot_addr, boot_reg); return 0; diff --git a/arch/arm/mach-exynos/headsmp.S b/arch/arm/mach-exynos/headsmp.S index 5364d4bfa8b..cdd9d91e993 100644 --- a/arch/arm/mach-exynos/headsmp.S +++ b/arch/arm/mach-exynos/headsmp.S @@ -13,8 +13,6 @@ #include <linux/linkage.h> #include <linux/init.h> - __CPUINIT - /* * exynos4 specific entry point for secondary CPUs. This provides * a "holding pen" into which all secondary cores are held until we're diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c index af90cfa2f82..920a4baa53c 100644 --- a/arch/arm/mach-exynos/hotplug.c +++ b/arch/arm/mach-exynos/hotplug.c @@ -19,60 +19,8 @@ #include <asm/cp15.h> #include <asm/smp_plat.h> -#include <mach/regs-pmu.h> -#include <plat/cpu.h> - #include "common.h" - -static inline void cpu_enter_lowpower_a9(void) -{ - unsigned int v; - - asm volatile( - " mcr p15, 0, %1, c7, c5, 0\n" - " mcr p15, 0, %1, c7, c10, 4\n" - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, %3\n" - " mcr p15, 0, %0, c1, c0, 1\n" - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %2\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "r" (0), "Ir" (CR_C), "Ir" (0x40) - : "cc"); -} - -static inline void cpu_enter_lowpower_a15(void) -{ - unsigned int v; - - asm volatile( - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %1\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "Ir" (CR_C) - : "cc"); - - flush_cache_louis(); - - asm volatile( - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, %1\n" - " mcr p15, 0, %0, c1, c0, 1\n" - : "=&r" (v) - : "Ir" (0x40) - : "cc"); - - isb(); - dsb(); -} +#include "regs-pmu.h" static inline void cpu_leave_lowpower(void) { @@ -92,21 +40,17 @@ static inline void cpu_leave_lowpower(void) static inline void platform_do_lowpower(unsigned int cpu, int *spurious) { + u32 mpidr = cpu_logical_map(cpu); + u32 core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); + for (;;) { - /* make cpu1 to be turned off at next WFI command */ - if (cpu == 1) - __raw_writel(0, S5P_ARM_CORE1_CONFIGURATION); + /* Turn the CPU off on next WFI instruction. */ + exynos_cpu_power_down(core_id); - /* - * here's the WFI - */ - asm(".word 0xe320f003\n" - : - : - : "memory", "cc"); + wfi(); - if (pen_release == cpu_logical_map(cpu)) { + if (pen_release == core_id) { /* * OK, proper wakeup, we're done */ @@ -132,19 +76,8 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious) void __ref exynos_cpu_die(unsigned int cpu) { int spurious = 0; - int primary_part = 0; - /* - * we're ready for shutdown now, so do it. - * Exynos4 is A9 based while Exynos5 is A15; check the CPU part - * number by reading the Main ID register and then perform the - * appropriate sequence for entering low power. - */ - asm("mrc p15, 0, %0, c0, c0, 0" : "=r"(primary_part) : : "cc"); - if ((primary_part & 0xfff0) == 0xc0f0) - cpu_enter_lowpower_a15(); - else - cpu_enter_lowpower_a9(); + v7_exit_coherency_flush(louis); platform_do_lowpower(cpu, &spurious); diff --git a/arch/arm/mach-exynos/include/mach/hardware.h b/arch/arm/mach-exynos/include/mach/hardware.h deleted file mode 100644 index 5109eb232f2..00000000000 --- a/arch/arm/mach-exynos/include/mach/hardware.h +++ /dev/null @@ -1,18 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/hardware.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - Hardware support - * - * 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 __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H __FILE__ - -/* currently nothing here, placeholder */ - -#endif /* __ASM_ARCH_HARDWARE_H */ diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index 7b046b59d9e..548269a6063 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -23,13 +23,6 @@ #include <plat/map-s5p.h> -#define EXYNOS4_PA_SYSRAM0 0x02025000 -#define EXYNOS4_PA_SYSRAM1 0x02020000 -#define EXYNOS5_PA_SYSRAM 0x02020000 -#define EXYNOS4210_PA_SYSRAM_NS 0x0203F000 -#define EXYNOS4x12_PA_SYSRAM_NS 0x0204F000 -#define EXYNOS5250_PA_SYSRAM_NS 0x0204F000 - #define EXYNOS_PA_CHIPID 0x10000000 #define EXYNOS4_PA_SYSCON 0x10010000 diff --git a/arch/arm/mach-exynos/include/mach/memory.h b/arch/arm/mach-exynos/include/mach/memory.h index 374ef2cf715..2a4cdb7cb32 100644 --- a/arch/arm/mach-exynos/include/mach/memory.h +++ b/arch/arm/mach-exynos/include/mach/memory.h @@ -15,8 +15,13 @@ #define PLAT_PHYS_OFFSET UL(0x40000000) +#ifndef CONFIG_ARM_LPAE /* Maximum of 256MiB in one bank */ #define MAX_PHYSMEM_BITS 32 #define SECTION_SIZE_BITS 28 +#else +#define MAX_PHYSMEM_BITS 36 +#define SECTION_SIZE_BITS 31 +#endif #endif /* __ASM_ARCH_MEMORY_H */ diff --git a/arch/arm/mach-exynos/include/mach/pm-core.h b/arch/arm/mach-exynos/include/mach/pm-core.h deleted file mode 100644 index 2b00833b664..00000000000 --- a/arch/arm/mach-exynos/include/mach/pm-core.h +++ /dev/null @@ -1,72 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/pm-core.h - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Based on arch/arm/mach-s3c2410/include/mach/pm-core.h, - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * EXYNOS4210 - PM core support for arch/arm/plat-s5p/pm.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. -*/ - -#ifndef __ASM_ARCH_PM_CORE_H -#define __ASM_ARCH_PM_CORE_H __FILE__ - -#include <linux/of.h> -#include <mach/regs-pmu.h> - -#ifdef CONFIG_PINCTRL_EXYNOS -extern u32 exynos_get_eint_wake_mask(void); -#else -static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; } -#endif - -static inline void s3c_pm_debug_init_uart(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_prepare_irqs(void) -{ - __raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK); - __raw_writel(s3c_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK); -} - -static inline void s3c_pm_arch_stop_clocks(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_show_resume_irqs(void) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_arch_update_uart(void __iomem *regs, - struct pm_uart_save *save) -{ - /* nothing here yet */ -} - -static inline void s3c_pm_restored_gpios(void) -{ - /* nothing here yet */ -} - -static inline void samsung_pm_saved_gpios(void) -{ - /* nothing here yet */ -} - -/* Compatibility definitions to make plat-samsung/pm.c compile */ -#define IRQ_EINT_BIT(x) 1 -#define s3c_irqwake_intallow 0 -#define s3c_irqwake_eintallow 0 - -#endif /* __ASM_ARCH_PM_CORE_H */ diff --git a/arch/arm/mach-exynos/include/mach/regs-clock.h b/arch/arm/mach-exynos/include/mach/regs-clock.h deleted file mode 100644 index d36ad76ad6a..00000000000 --- a/arch/arm/mach-exynos/include/mach/regs-clock.h +++ /dev/null @@ -1,372 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/regs-clock.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - Clock register definitions - * - * 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 __ASM_ARCH_REGS_CLOCK_H -#define __ASM_ARCH_REGS_CLOCK_H __FILE__ - -#include <plat/cpu.h> -#include <mach/map.h> - -#define EXYNOS_CLKREG(x) (S5P_VA_CMU + (x)) - -#define EXYNOS4_CLKDIV_LEFTBUS EXYNOS_CLKREG(0x04500) -#define EXYNOS4_CLKDIV_STAT_LEFTBUS EXYNOS_CLKREG(0x04600) -#define EXYNOS4_CLKGATE_IP_LEFTBUS EXYNOS_CLKREG(0x04800) - -#define EXYNOS4_CLKDIV_RIGHTBUS EXYNOS_CLKREG(0x08500) -#define EXYNOS4_CLKDIV_STAT_RIGHTBUS EXYNOS_CLKREG(0x08600) -#define EXYNOS4_CLKGATE_IP_RIGHTBUS EXYNOS_CLKREG(0x08800) - -#define EXYNOS4_EPLL_LOCK EXYNOS_CLKREG(0x0C010) -#define EXYNOS4_VPLL_LOCK EXYNOS_CLKREG(0x0C020) - -#define EXYNOS4_EPLL_CON0 EXYNOS_CLKREG(0x0C110) -#define EXYNOS4_EPLL_CON1 EXYNOS_CLKREG(0x0C114) -#define EXYNOS4_VPLL_CON0 EXYNOS_CLKREG(0x0C120) -#define EXYNOS4_VPLL_CON1 EXYNOS_CLKREG(0x0C124) - -#define EXYNOS4_CLKSRC_TOP0 EXYNOS_CLKREG(0x0C210) -#define EXYNOS4_CLKSRC_TOP1 EXYNOS_CLKREG(0x0C214) -#define EXYNOS4_CLKSRC_CAM EXYNOS_CLKREG(0x0C220) -#define EXYNOS4_CLKSRC_TV EXYNOS_CLKREG(0x0C224) -#define EXYNOS4_CLKSRC_MFC EXYNOS_CLKREG(0x0C228) -#define EXYNOS4_CLKSRC_G3D EXYNOS_CLKREG(0x0C22C) -#define EXYNOS4_CLKSRC_IMAGE EXYNOS_CLKREG(0x0C230) -#define EXYNOS4_CLKSRC_LCD0 EXYNOS_CLKREG(0x0C234) -#define EXYNOS4_CLKSRC_MAUDIO EXYNOS_CLKREG(0x0C23C) -#define EXYNOS4_CLKSRC_FSYS EXYNOS_CLKREG(0x0C240) -#define EXYNOS4_CLKSRC_PERIL0 EXYNOS_CLKREG(0x0C250) -#define EXYNOS4_CLKSRC_PERIL1 EXYNOS_CLKREG(0x0C254) - -#define EXYNOS4_CLKSRC_MASK_TOP EXYNOS_CLKREG(0x0C310) -#define EXYNOS4_CLKSRC_MASK_CAM EXYNOS_CLKREG(0x0C320) -#define EXYNOS4_CLKSRC_MASK_TV EXYNOS_CLKREG(0x0C324) -#define EXYNOS4_CLKSRC_MASK_LCD0 EXYNOS_CLKREG(0x0C334) -#define EXYNOS4_CLKSRC_MASK_MAUDIO EXYNOS_CLKREG(0x0C33C) -#define EXYNOS4_CLKSRC_MASK_FSYS EXYNOS_CLKREG(0x0C340) -#define EXYNOS4_CLKSRC_MASK_PERIL0 EXYNOS_CLKREG(0x0C350) -#define EXYNOS4_CLKSRC_MASK_PERIL1 EXYNOS_CLKREG(0x0C354) - -#define EXYNOS4_CLKDIV_TOP EXYNOS_CLKREG(0x0C510) -#define EXYNOS4_CLKDIV_CAM EXYNOS_CLKREG(0x0C520) -#define EXYNOS4_CLKDIV_TV EXYNOS_CLKREG(0x0C524) -#define EXYNOS4_CLKDIV_MFC EXYNOS_CLKREG(0x0C528) -#define EXYNOS4_CLKDIV_G3D EXYNOS_CLKREG(0x0C52C) -#define EXYNOS4_CLKDIV_IMAGE EXYNOS_CLKREG(0x0C530) -#define EXYNOS4_CLKDIV_LCD0 EXYNOS_CLKREG(0x0C534) -#define EXYNOS4_CLKDIV_MAUDIO EXYNOS_CLKREG(0x0C53C) -#define EXYNOS4_CLKDIV_FSYS0 EXYNOS_CLKREG(0x0C540) -#define EXYNOS4_CLKDIV_FSYS1 EXYNOS_CLKREG(0x0C544) -#define EXYNOS4_CLKDIV_FSYS2 EXYNOS_CLKREG(0x0C548) -#define EXYNOS4_CLKDIV_FSYS3 EXYNOS_CLKREG(0x0C54C) -#define EXYNOS4_CLKDIV_PERIL0 EXYNOS_CLKREG(0x0C550) -#define EXYNOS4_CLKDIV_PERIL1 EXYNOS_CLKREG(0x0C554) -#define EXYNOS4_CLKDIV_PERIL2 EXYNOS_CLKREG(0x0C558) -#define EXYNOS4_CLKDIV_PERIL3 EXYNOS_CLKREG(0x0C55C) -#define EXYNOS4_CLKDIV_PERIL4 EXYNOS_CLKREG(0x0C560) -#define EXYNOS4_CLKDIV_PERIL5 EXYNOS_CLKREG(0x0C564) -#define EXYNOS4_CLKDIV2_RATIO EXYNOS_CLKREG(0x0C580) - -#define EXYNOS4_CLKDIV_STAT_TOP EXYNOS_CLKREG(0x0C610) -#define EXYNOS4_CLKDIV_STAT_MFC EXYNOS_CLKREG(0x0C628) - -#define EXYNOS4_CLKGATE_SCLKCAM EXYNOS_CLKREG(0x0C820) -#define EXYNOS4_CLKGATE_IP_CAM EXYNOS_CLKREG(0x0C920) -#define EXYNOS4_CLKGATE_IP_TV EXYNOS_CLKREG(0x0C924) -#define EXYNOS4_CLKGATE_IP_MFC EXYNOS_CLKREG(0x0C928) -#define EXYNOS4_CLKGATE_IP_G3D EXYNOS_CLKREG(0x0C92C) -#define EXYNOS4_CLKGATE_IP_IMAGE (soc_is_exynos4210() ? \ - EXYNOS_CLKREG(0x0C930) : \ - EXYNOS_CLKREG(0x04930)) -#define EXYNOS4210_CLKGATE_IP_IMAGE EXYNOS_CLKREG(0x0C930) -#define EXYNOS4212_CLKGATE_IP_IMAGE EXYNOS_CLKREG(0x04930) -#define EXYNOS4_CLKGATE_IP_LCD0 EXYNOS_CLKREG(0x0C934) -#define EXYNOS4_CLKGATE_IP_FSYS EXYNOS_CLKREG(0x0C940) -#define EXYNOS4_CLKGATE_IP_GPS EXYNOS_CLKREG(0x0C94C) -#define EXYNOS4_CLKGATE_IP_PERIL EXYNOS_CLKREG(0x0C950) -#define EXYNOS4_CLKGATE_IP_PERIR (soc_is_exynos4210() ? \ - EXYNOS_CLKREG(0x0C960) : \ - EXYNOS_CLKREG(0x08960)) -#define EXYNOS4210_CLKGATE_IP_PERIR EXYNOS_CLKREG(0x0C960) -#define EXYNOS4212_CLKGATE_IP_PERIR EXYNOS_CLKREG(0x08960) -#define EXYNOS4_CLKGATE_BLOCK EXYNOS_CLKREG(0x0C970) - -#define EXYNOS4_CLKSRC_MASK_DMC EXYNOS_CLKREG(0x10300) -#define EXYNOS4_CLKSRC_DMC EXYNOS_CLKREG(0x10200) -#define EXYNOS4_CLKDIV_DMC0 EXYNOS_CLKREG(0x10500) -#define EXYNOS4_CLKDIV_DMC1 EXYNOS_CLKREG(0x10504) -#define EXYNOS4_CLKDIV_STAT_DMC0 EXYNOS_CLKREG(0x10600) -#define EXYNOS4_CLKDIV_STAT_DMC1 EXYNOS_CLKREG(0x10604) -#define EXYNOS4_CLKGATE_IP_DMC EXYNOS_CLKREG(0x10900) - -#define EXYNOS4_DMC_PAUSE_CTRL EXYNOS_CLKREG(0x11094) -#define EXYNOS4_DMC_PAUSE_ENABLE (1 << 0) - -#define EXYNOS4_APLL_LOCK EXYNOS_CLKREG(0x14000) -#define EXYNOS4_MPLL_LOCK (soc_is_exynos4210() ? \ - EXYNOS_CLKREG(0x14004) : \ - EXYNOS_CLKREG(0x10008)) -#define EXYNOS4_APLL_CON0 EXYNOS_CLKREG(0x14100) -#define EXYNOS4_APLL_CON1 EXYNOS_CLKREG(0x14104) -#define EXYNOS4_MPLL_CON0 (soc_is_exynos4210() ? \ - EXYNOS_CLKREG(0x14108) : \ - EXYNOS_CLKREG(0x10108)) -#define EXYNOS4_MPLL_CON1 (soc_is_exynos4210() ? \ - EXYNOS_CLKREG(0x1410C) : \ - EXYNOS_CLKREG(0x1010C)) - -#define EXYNOS4_CLKSRC_CPU EXYNOS_CLKREG(0x14200) -#define EXYNOS4_CLKMUX_STATCPU EXYNOS_CLKREG(0x14400) - -#define EXYNOS4_CLKDIV_CPU EXYNOS_CLKREG(0x14500) -#define EXYNOS4_CLKDIV_CPU1 EXYNOS_CLKREG(0x14504) -#define EXYNOS4_CLKDIV_STATCPU EXYNOS_CLKREG(0x14600) -#define EXYNOS4_CLKDIV_STATCPU1 EXYNOS_CLKREG(0x14604) - -#define EXYNOS4_CLKGATE_SCLKCPU EXYNOS_CLKREG(0x14800) -#define EXYNOS4_CLKGATE_IP_CPU EXYNOS_CLKREG(0x14900) - -#define EXYNOS4_CLKGATE_IP_ISP0 EXYNOS_CLKREG(0x18800) -#define EXYNOS4_CLKGATE_IP_ISP1 EXYNOS_CLKREG(0x18804) - -#define EXYNOS4_APLL_LOCKTIME (0x1C20) /* 300us */ - -#define EXYNOS4_APLLCON0_ENABLE_SHIFT (31) -#define EXYNOS4_APLLCON0_LOCKED_SHIFT (29) -#define EXYNOS4_APLL_VAL_1000 ((250 << 16) | (6 << 8) | 1) -#define EXYNOS4_APLL_VAL_800 ((200 << 16) | (6 << 8) | 1) - -#define EXYNOS4_EPLLCON0_ENABLE_SHIFT (31) -#define EXYNOS4_EPLLCON0_LOCKED_SHIFT (29) - -#define EXYNOS4_VPLLCON0_ENABLE_SHIFT (31) -#define EXYNOS4_VPLLCON0_LOCKED_SHIFT (29) - -#define EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT (16) -#define EXYNOS4_CLKMUX_STATCPU_MUXCORE_MASK (0x7 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT) - -#define EXYNOS4_CLKDIV_CPU0_CORE_SHIFT (0) -#define EXYNOS4_CLKDIV_CPU0_CORE_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_CORE_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_COREM0_SHIFT (4) -#define EXYNOS4_CLKDIV_CPU0_COREM0_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_COREM0_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_COREM1_SHIFT (8) -#define EXYNOS4_CLKDIV_CPU0_COREM1_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_COREM1_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_PERIPH_SHIFT (12) -#define EXYNOS4_CLKDIV_CPU0_PERIPH_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_PERIPH_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_ATB_SHIFT (16) -#define EXYNOS4_CLKDIV_CPU0_ATB_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_ATB_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_PCLKDBG_SHIFT (20) -#define EXYNOS4_CLKDIV_CPU0_PCLKDBG_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_PCLKDBG_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_APLL_SHIFT (24) -#define EXYNOS4_CLKDIV_CPU0_APLL_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_APLL_SHIFT) -#define EXYNOS4_CLKDIV_CPU0_CORE2_SHIFT 28 -#define EXYNOS4_CLKDIV_CPU0_CORE2_MASK (0x7 << EXYNOS4_CLKDIV_CPU0_CORE2_SHIFT) - -#define EXYNOS4_CLKDIV_CPU1_COPY_SHIFT 0 -#define EXYNOS4_CLKDIV_CPU1_COPY_MASK (0x7 << EXYNOS4_CLKDIV_CPU1_COPY_SHIFT) -#define EXYNOS4_CLKDIV_CPU1_HPM_SHIFT 4 -#define EXYNOS4_CLKDIV_CPU1_HPM_MASK (0x7 << EXYNOS4_CLKDIV_CPU1_HPM_SHIFT) -#define EXYNOS4_CLKDIV_CPU1_CORES_SHIFT 8 -#define EXYNOS4_CLKDIV_CPU1_CORES_MASK (0x7 << EXYNOS4_CLKDIV_CPU1_CORES_SHIFT) - -#define EXYNOS4_CLKDIV_DMC0_ACP_SHIFT (0) -#define EXYNOS4_CLKDIV_DMC0_ACP_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_ACP_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_ACPPCLK_SHIFT (4) -#define EXYNOS4_CLKDIV_DMC0_ACPPCLK_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_ACPPCLK_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_DPHY_SHIFT (8) -#define EXYNOS4_CLKDIV_DMC0_DPHY_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_DPHY_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_DMC_SHIFT (12) -#define EXYNOS4_CLKDIV_DMC0_DMC_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_DMC_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_DMCD_SHIFT (16) -#define EXYNOS4_CLKDIV_DMC0_DMCD_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_DMCD_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_DMCP_SHIFT (20) -#define EXYNOS4_CLKDIV_DMC0_DMCP_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_DMCP_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_COPY2_SHIFT (24) -#define EXYNOS4_CLKDIV_DMC0_COPY2_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_COPY2_SHIFT) -#define EXYNOS4_CLKDIV_DMC0_CORETI_SHIFT (28) -#define EXYNOS4_CLKDIV_DMC0_CORETI_MASK (0x7 << EXYNOS4_CLKDIV_DMC0_CORETI_SHIFT) - -#define EXYNOS4_CLKDIV_DMC1_G2D_ACP_SHIFT (0) -#define EXYNOS4_CLKDIV_DMC1_G2D_ACP_MASK (0xf << EXYNOS4_CLKDIV_DMC1_G2D_ACP_SHIFT) -#define EXYNOS4_CLKDIV_DMC1_C2C_SHIFT (4) -#define EXYNOS4_CLKDIV_DMC1_C2C_MASK (0x7 << EXYNOS4_CLKDIV_DMC1_C2C_SHIFT) -#define EXYNOS4_CLKDIV_DMC1_PWI_SHIFT (8) -#define EXYNOS4_CLKDIV_DMC1_PWI_MASK (0xf << EXYNOS4_CLKDIV_DMC1_PWI_SHIFT) -#define EXYNOS4_CLKDIV_DMC1_C2CACLK_SHIFT (12) -#define EXYNOS4_CLKDIV_DMC1_C2CACLK_MASK (0x7 << EXYNOS4_CLKDIV_DMC1_C2CACLK_SHIFT) -#define EXYNOS4_CLKDIV_DMC1_DVSEM_SHIFT (16) -#define EXYNOS4_CLKDIV_DMC1_DVSEM_MASK (0x7f << EXYNOS4_CLKDIV_DMC1_DVSEM_SHIFT) -#define EXYNOS4_CLKDIV_DMC1_DPM_SHIFT (24) -#define EXYNOS4_CLKDIV_DMC1_DPM_MASK (0x7f << EXYNOS4_CLKDIV_DMC1_DPM_SHIFT) - -#define EXYNOS4_CLKDIV_MFC_SHIFT (0) -#define EXYNOS4_CLKDIV_MFC_MASK (0x7 << EXYNOS4_CLKDIV_MFC_SHIFT) - -#define EXYNOS4_CLKDIV_TOP_ACLK200_SHIFT (0) -#define EXYNOS4_CLKDIV_TOP_ACLK200_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ACLK200_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ACLK100_SHIFT (4) -#define EXYNOS4_CLKDIV_TOP_ACLK100_MASK (0xF << EXYNOS4_CLKDIV_TOP_ACLK100_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ACLK160_SHIFT (8) -#define EXYNOS4_CLKDIV_TOP_ACLK160_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ACLK160_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ACLK133_SHIFT (12) -#define EXYNOS4_CLKDIV_TOP_ACLK133_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ACLK133_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ONENAND_SHIFT (16) -#define EXYNOS4_CLKDIV_TOP_ONENAND_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ONENAND_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ACLK266_GPS_SHIFT (20) -#define EXYNOS4_CLKDIV_TOP_ACLK266_GPS_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ACLK266_GPS_SHIFT) -#define EXYNOS4_CLKDIV_TOP_ACLK400_MCUISP_SHIFT (24) -#define EXYNOS4_CLKDIV_TOP_ACLK400_MCUISP_MASK (0x7 << EXYNOS4_CLKDIV_TOP_ACLK400_MCUISP_SHIFT) - -#define EXYNOS4_CLKDIV_BUS_GDLR_SHIFT (0) -#define EXYNOS4_CLKDIV_BUS_GDLR_MASK (0x7 << EXYNOS4_CLKDIV_BUS_GDLR_SHIFT) -#define EXYNOS4_CLKDIV_BUS_GPLR_SHIFT (4) -#define EXYNOS4_CLKDIV_BUS_GPLR_MASK (0x7 << EXYNOS4_CLKDIV_BUS_GPLR_SHIFT) - -#define EXYNOS4_CLKDIV_CAM_FIMC0_SHIFT (0) -#define EXYNOS4_CLKDIV_CAM_FIMC0_MASK (0xf << EXYNOS4_CLKDIV_CAM_FIMC0_SHIFT) -#define EXYNOS4_CLKDIV_CAM_FIMC1_SHIFT (4) -#define EXYNOS4_CLKDIV_CAM_FIMC1_MASK (0xf << EXYNOS4_CLKDIV_CAM_FIMC1_SHIFT) -#define EXYNOS4_CLKDIV_CAM_FIMC2_SHIFT (8) -#define EXYNOS4_CLKDIV_CAM_FIMC2_MASK (0xf << EXYNOS4_CLKDIV_CAM_FIMC2_SHIFT) -#define EXYNOS4_CLKDIV_CAM_FIMC3_SHIFT (12) -#define EXYNOS4_CLKDIV_CAM_FIMC3_MASK (0xf << EXYNOS4_CLKDIV_CAM_FIMC3_SHIFT) - -/* Only for EXYNOS4210 */ - -#define EXYNOS4210_CLKSRC_LCD1 EXYNOS_CLKREG(0x0C238) -#define EXYNOS4210_CLKSRC_MASK_LCD1 EXYNOS_CLKREG(0x0C338) -#define EXYNOS4210_CLKDIV_LCD1 EXYNOS_CLKREG(0x0C538) -#define EXYNOS4210_CLKGATE_IP_LCD1 EXYNOS_CLKREG(0x0C938) - -/* Only for EXYNOS4212 */ - -#define EXYNOS4_CLKDIV_CAM1 EXYNOS_CLKREG(0x0C568) - -#define EXYNOS4_CLKDIV_STAT_CAM1 EXYNOS_CLKREG(0x0C668) - -#define EXYNOS4_CLKDIV_CAM1_JPEG_SHIFT (0) -#define EXYNOS4_CLKDIV_CAM1_JPEG_MASK (0xf << EXYNOS4_CLKDIV_CAM1_JPEG_SHIFT) - -/* For EXYNOS5250 */ - -#define EXYNOS5_APLL_LOCK EXYNOS_CLKREG(0x00000) -#define EXYNOS5_APLL_CON0 EXYNOS_CLKREG(0x00100) -#define EXYNOS5_CLKSRC_CPU EXYNOS_CLKREG(0x00200) -#define EXYNOS5_CLKMUX_STATCPU EXYNOS_CLKREG(0x00400) -#define EXYNOS5_CLKDIV_CPU0 EXYNOS_CLKREG(0x00500) -#define EXYNOS5_CLKDIV_CPU1 EXYNOS_CLKREG(0x00504) -#define EXYNOS5_CLKDIV_STATCPU0 EXYNOS_CLKREG(0x00600) -#define EXYNOS5_CLKDIV_STATCPU1 EXYNOS_CLKREG(0x00604) - -#define EXYNOS5_PWR_CTRL1 EXYNOS_CLKREG(0x01020) -#define EXYNOS5_PWR_CTRL2 EXYNOS_CLKREG(0x01024) - -#define EXYNOS5_MPLL_CON0 EXYNOS_CLKREG(0x04100) -#define EXYNOS5_CLKSRC_CORE1 EXYNOS_CLKREG(0x04204) - -#define EXYNOS5_CLKGATE_IP_CORE EXYNOS_CLKREG(0x04900) - -#define EXYNOS5_CLKDIV_ACP EXYNOS_CLKREG(0x08500) - -#define EXYNOS5_EPLL_CON0 EXYNOS_CLKREG(0x10130) -#define EXYNOS5_EPLL_CON1 EXYNOS_CLKREG(0x10134) -#define EXYNOS5_EPLL_CON2 EXYNOS_CLKREG(0x10138) -#define EXYNOS5_VPLL_CON0 EXYNOS_CLKREG(0x10140) -#define EXYNOS5_VPLL_CON1 EXYNOS_CLKREG(0x10144) -#define EXYNOS5_VPLL_CON2 EXYNOS_CLKREG(0x10148) -#define EXYNOS5_CPLL_CON0 EXYNOS_CLKREG(0x10120) - -#define EXYNOS5_CLKSRC_TOP0 EXYNOS_CLKREG(0x10210) -#define EXYNOS5_CLKSRC_TOP1 EXYNOS_CLKREG(0x10214) -#define EXYNOS5_CLKSRC_TOP2 EXYNOS_CLKREG(0x10218) -#define EXYNOS5_CLKSRC_TOP3 EXYNOS_CLKREG(0x1021C) -#define EXYNOS5_CLKSRC_GSCL EXYNOS_CLKREG(0x10220) -#define EXYNOS5_CLKSRC_DISP1_0 EXYNOS_CLKREG(0x1022C) -#define EXYNOS5_CLKSRC_MAUDIO EXYNOS_CLKREG(0x10240) -#define EXYNOS5_CLKSRC_FSYS EXYNOS_CLKREG(0x10244) -#define EXYNOS5_CLKSRC_PERIC0 EXYNOS_CLKREG(0x10250) -#define EXYNOS5_CLKSRC_PERIC1 EXYNOS_CLKREG(0x10254) -#define EXYNOS5_SCLK_SRC_ISP EXYNOS_CLKREG(0x10270) - -#define EXYNOS5_CLKSRC_MASK_TOP EXYNOS_CLKREG(0x10310) -#define EXYNOS5_CLKSRC_MASK_GSCL EXYNOS_CLKREG(0x10320) -#define EXYNOS5_CLKSRC_MASK_DISP1_0 EXYNOS_CLKREG(0x1032C) -#define EXYNOS5_CLKSRC_MASK_MAUDIO EXYNOS_CLKREG(0x10334) -#define EXYNOS5_CLKSRC_MASK_FSYS EXYNOS_CLKREG(0x10340) -#define EXYNOS5_CLKSRC_MASK_PERIC0 EXYNOS_CLKREG(0x10350) -#define EXYNOS5_CLKSRC_MASK_PERIC1 EXYNOS_CLKREG(0x10354) - -#define EXYNOS5_CLKDIV_TOP0 EXYNOS_CLKREG(0x10510) -#define EXYNOS5_CLKDIV_TOP1 EXYNOS_CLKREG(0x10514) -#define EXYNOS5_CLKDIV_GSCL EXYNOS_CLKREG(0x10520) -#define EXYNOS5_CLKDIV_DISP1_0 EXYNOS_CLKREG(0x1052C) -#define EXYNOS5_CLKDIV_GEN EXYNOS_CLKREG(0x1053C) -#define EXYNOS5_CLKDIV_MAUDIO EXYNOS_CLKREG(0x10544) -#define EXYNOS5_CLKDIV_FSYS0 EXYNOS_CLKREG(0x10548) -#define EXYNOS5_CLKDIV_FSYS1 EXYNOS_CLKREG(0x1054C) -#define EXYNOS5_CLKDIV_FSYS2 EXYNOS_CLKREG(0x10550) -#define EXYNOS5_CLKDIV_FSYS3 EXYNOS_CLKREG(0x10554) -#define EXYNOS5_CLKDIV_PERIC0 EXYNOS_CLKREG(0x10558) -#define EXYNOS5_CLKDIV_PERIC1 EXYNOS_CLKREG(0x1055C) -#define EXYNOS5_CLKDIV_PERIC2 EXYNOS_CLKREG(0x10560) -#define EXYNOS5_CLKDIV_PERIC3 EXYNOS_CLKREG(0x10564) -#define EXYNOS5_CLKDIV_PERIC4 EXYNOS_CLKREG(0x10568) -#define EXYNOS5_CLKDIV_PERIC5 EXYNOS_CLKREG(0x1056C) -#define EXYNOS5_SCLK_DIV_ISP EXYNOS_CLKREG(0x10580) - -#define EXYNOS5_CLKGATE_IP_ACP EXYNOS_CLKREG(0x08800) -#define EXYNOS5_CLKGATE_IP_ISP0 EXYNOS_CLKREG(0x0C800) -#define EXYNOS5_CLKGATE_IP_ISP1 EXYNOS_CLKREG(0x0C804) -#define EXYNOS5_CLKGATE_IP_GSCL EXYNOS_CLKREG(0x10920) -#define EXYNOS5_CLKGATE_IP_DISP1 EXYNOS_CLKREG(0x10928) -#define EXYNOS5_CLKGATE_IP_MFC EXYNOS_CLKREG(0x1092C) -#define EXYNOS5_CLKGATE_IP_G3D EXYNOS_CLKREG(0x10930) -#define EXYNOS5_CLKGATE_IP_GEN EXYNOS_CLKREG(0x10934) -#define EXYNOS5_CLKGATE_IP_FSYS EXYNOS_CLKREG(0x10944) -#define EXYNOS5_CLKGATE_IP_GPS EXYNOS_CLKREG(0x1094C) -#define EXYNOS5_CLKGATE_IP_PERIC EXYNOS_CLKREG(0x10950) -#define EXYNOS5_CLKGATE_IP_PERIS EXYNOS_CLKREG(0x10960) -#define EXYNOS5_CLKGATE_BLOCK EXYNOS_CLKREG(0x10980) - -#define EXYNOS5_BPLL_CON0 EXYNOS_CLKREG(0x20110) -#define EXYNOS5_CLKSRC_CDREX EXYNOS_CLKREG(0x20200) -#define EXYNOS5_CLKDIV_CDREX EXYNOS_CLKREG(0x20500) - -#define EXYNOS5_PLL_DIV2_SEL EXYNOS_CLKREG(0x20A24) - -#define EXYNOS5_EPLL_LOCK EXYNOS_CLKREG(0x10030) - -#define EXYNOS5_EPLLCON0_LOCKED_SHIFT (29) - -#define PWR_CTRL1_CORE2_DOWN_RATIO (7 << 28) -#define PWR_CTRL1_CORE1_DOWN_RATIO (7 << 16) -#define PWR_CTRL1_DIV2_DOWN_EN (1 << 9) -#define PWR_CTRL1_DIV1_DOWN_EN (1 << 8) -#define PWR_CTRL1_USE_CORE1_WFE (1 << 5) -#define PWR_CTRL1_USE_CORE0_WFE (1 << 4) -#define PWR_CTRL1_USE_CORE1_WFI (1 << 1) -#define PWR_CTRL1_USE_CORE0_WFI (1 << 0) - -#define PWR_CTRL2_DIV2_UP_EN (1 << 25) -#define PWR_CTRL2_DIV1_UP_EN (1 << 24) -#define PWR_CTRL2_DUR_STANDBY2_VAL (1 << 16) -#define PWR_CTRL2_DUR_STANDBY1_VAL (1 << 8) -#define PWR_CTRL2_CORE2_UP_RATIO (1 << 4) -#define PWR_CTRL2_CORE1_UP_RATIO (1 << 0) - -/* Compatibility defines and inclusion */ - -#include <mach/regs-pmu.h> - -#define S5P_EPLL_CON EXYNOS4_EPLL_CON0 - -#endif /* __ASM_ARCH_REGS_CLOCK_H */ diff --git a/arch/arm/mach-exynos/include/mach/regs-irq.h b/arch/arm/mach-exynos/include/mach/regs-irq.h deleted file mode 100644 index f2b50506b9f..00000000000 --- a/arch/arm/mach-exynos/include/mach/regs-irq.h +++ /dev/null @@ -1,19 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/regs-irq.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - IRQ register definitions - * - * 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 __ASM_ARCH_REGS_IRQ_H -#define __ASM_ARCH_REGS_IRQ_H __FILE__ - -#include <linux/irqchip/arm-gic.h> -#include <mach/map.h> - -#endif /* __ASM_ARCH_REGS_IRQ_H */ diff --git a/arch/arm/mach-exynos/include/mach/timex.h b/arch/arm/mach-exynos/include/mach/timex.h deleted file mode 100644 index 6d138750a70..00000000000 --- a/arch/arm/mach-exynos/include/mach/timex.h +++ /dev/null @@ -1,29 +0,0 @@ -/* linux/arch/arm/mach-exynos4/include/mach/timex.h - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Copyright (c) 2003-2010 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * Based on arch/arm/mach-s5p6442/include/mach/timex.h - * - * EXYNOS4 - time parameters - * - * 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 __ASM_ARCH_TIMEX_H -#define __ASM_ARCH_TIMEX_H __FILE__ - -/* CLOCK_TICK_RATE needs to be evaluatable by the cpp, so making it - * a variable is useless. It seems as long as we make our timers an - * exact multiple of HZ, any value that makes a 1->1 correspondence - * for the time conversion functions to/from jiffies is acceptable. -*/ - -#define CLOCK_TICK_RATE 12000000 - -#endif /* __ASM_ARCH_TIMEX_H */ diff --git a/arch/arm/mach-exynos/include/mach/uncompress.h b/arch/arm/mach-exynos/include/mach/uncompress.h deleted file mode 100644 index 5d7ce36be46..00000000000 --- a/arch/arm/mach-exynos/include/mach/uncompress.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (c) 2010-2012 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS - uncompress code - * - * 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 __ASM_ARCH_UNCOMPRESS_H -#define __ASM_ARCH_UNCOMPRESS_H __FILE__ - -#include <asm/mach-types.h> - -#include <mach/map.h> -#include <plat/uncompress.h> - -static unsigned int __raw_readl(unsigned int ptr) -{ - return *((volatile unsigned int *)ptr); -} - -static void arch_detect_cpu(void) -{ - u32 chip_id = __raw_readl(EXYNOS_PA_CHIPID); - - /* - * product_id is bits 31:12 - * bits 23:20 describe the exynosX family - * bits 27:24 describe the exynosX family in exynos5420 - */ - chip_id >>= 20; - - if ((chip_id & 0x0f) == 0x5 || (chip_id & 0xf0) == 0x50) - uart_base = (volatile u8 *)EXYNOS5_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); - else - uart_base = (volatile u8 *)EXYNOS4_PA_UART + (S3C_UART_OFFSET * CONFIG_S3C_LOWLEVEL_UART_PORT); - - /* - * For preventing FIFO overrun or infinite loop of UART console, - * fifo_max should be the minimum fifo size of all of the UART channels - */ - fifo_mask = S5PV210_UFSTAT_TXMASK; - fifo_max = 15 << S5PV210_UFSTAT_TXSHIFT; -} -#endif /* __ASM_ARCH_UNCOMPRESS_H */ diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c deleted file mode 100644 index 0099c6c13bb..00000000000 --- a/arch/arm/mach-exynos/mach-exynos4-dt.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Samsung's EXYNOS4 flattened device tree enabled machine - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * Copyright (c) 2010-2011 Linaro Ltd. - * www.linaro.org - * - * 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/of_platform.h> -#include <linux/of_fdt.h> -#include <linux/serial_core.h> -#include <linux/memblock.h> -#include <linux/clocksource.h> - -#include <asm/mach/arch.h> -#include <plat/mfc.h> - -#include "common.h" - -static void __init exynos4_dt_machine_init(void) -{ - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static char const *exynos4_dt_compat[] __initdata = { - "samsung,exynos4210", - "samsung,exynos4212", - "samsung,exynos4412", - NULL -}; - -static void __init exynos4_reserve(void) -{ -#ifdef CONFIG_S5P_DEV_MFC - struct s5p_mfc_dt_meminfo mfc_mem; - - /* Reserve memory for MFC only if it's available */ - mfc_mem.compatible = "samsung,mfc-v5"; - if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) - s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, - mfc_mem.lsize); -#endif -} -DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)") - /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */ - .smp = smp_ops(exynos_smp_ops), - .map_io = exynos_init_io, - .init_early = exynos_firmware_init, - .init_machine = exynos4_dt_machine_init, - .init_late = exynos_init_late, - .init_time = exynos_init_time, - .dt_compat = exynos4_dt_compat, - .restart = exynos4_restart, - .reserve = exynos4_reserve, -MACHINE_END diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c deleted file mode 100644 index f874b773ca1..00000000000 --- a/arch/arm/mach-exynos/mach-exynos5-dt.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * SAMSUNG EXYNOS5250 Flattened Device Tree enabled machine - * - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * http://www.samsung.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/of_platform.h> -#include <linux/of_fdt.h> -#include <linux/memblock.h> -#include <linux/io.h> -#include <linux/clocksource.h> - -#include <asm/mach/arch.h> -#include <mach/regs-pmu.h> - -#include <plat/cpu.h> -#include <plat/mfc.h> - -#include "common.h" - -static void __init exynos5_dt_machine_init(void) -{ - struct device_node *i2c_np; - const char *i2c_compat = "samsung,s3c2440-i2c"; - unsigned int tmp; - - /* - * Exynos5's legacy i2c controller and new high speed i2c - * controller have muxed interrupt sources. By default the - * interrupts for 4-channel HS-I2C controller are enabled. - * If node for first four channels of legacy i2c controller - * are available then re-configure the interrupts via the - * system register. - */ - for_each_compatible_node(i2c_np, NULL, i2c_compat) { - if (of_device_is_available(i2c_np)) { - if (of_alias_get_id(i2c_np, "i2c") < 4) { - tmp = readl(EXYNOS5_SYS_I2C_CFG); - writel(tmp & ~(0x1 << of_alias_get_id(i2c_np, "i2c")), - EXYNOS5_SYS_I2C_CFG); - } - } - } - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} - -static char const *exynos5_dt_compat[] __initdata = { - "samsung,exynos5250", - "samsung,exynos5420", - "samsung,exynos5440", - NULL -}; - -static void __init exynos5_reserve(void) -{ -#ifdef CONFIG_S5P_DEV_MFC - struct s5p_mfc_dt_meminfo mfc_mem; - - /* Reserve memory for MFC only if it's available */ - mfc_mem.compatible = "samsung,mfc-v6"; - if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem)) - s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff, - mfc_mem.lsize); -#endif -} - -DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)") - /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */ - .smp = smp_ops(exynos_smp_ops), - .map_io = exynos_init_io, - .init_machine = exynos5_dt_machine_init, - .init_late = exynos_init_late, - .init_time = exynos_init_time, - .dt_compat = exynos5_dt_compat, - .restart = exynos5_restart, - .reserve = exynos5_reserve, -MACHINE_END diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c new file mode 100644 index 00000000000..ace0ed61747 --- /dev/null +++ b/arch/arm/mach-exynos/mcpm-exynos.c @@ -0,0 +1,358 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * arch/arm/mach-exynos/mcpm-exynos.c + * + * Based on arch/arm/mach-vexpress/dcscb.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/arm-cci.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/of_address.h> + +#include <asm/cputype.h> +#include <asm/cp15.h> +#include <asm/mcpm.h> + +#include "regs-pmu.h" +#include "common.h" + +#define EXYNOS5420_CPUS_PER_CLUSTER 4 +#define EXYNOS5420_NR_CLUSTERS 2 + +/* + * The common v7_exit_coherency_flush API could not be used because of the + * Erratum 799270 workaround. This macro is the same as the common one (in + * arch/arm/include/asm/cacheflush.h) except for the erratum handling. + */ +#define exynos_v7_exit_coherency_flush(level) \ + asm volatile( \ + "stmfd sp!, {fp, ip}\n\t"\ + "mrc p15, 0, r0, c1, c0, 0 @ get SCTLR\n\t" \ + "bic r0, r0, #"__stringify(CR_C)"\n\t" \ + "mcr p15, 0, r0, c1, c0, 0 @ set SCTLR\n\t" \ + "isb\n\t"\ + "bl v7_flush_dcache_"__stringify(level)"\n\t" \ + "clrex\n\t"\ + "mrc p15, 0, r0, c1, c0, 1 @ get ACTLR\n\t" \ + "bic r0, r0, #(1 << 6) @ disable local coherency\n\t" \ + /* Dummy Load of a device register to avoid Erratum 799270 */ \ + "ldr r4, [%0]\n\t" \ + "and r4, r4, #0\n\t" \ + "orr r0, r0, r4\n\t" \ + "mcr p15, 0, r0, c1, c0, 1 @ set ACTLR\n\t" \ + "isb\n\t" \ + "dsb\n\t" \ + "ldmfd sp!, {fp, ip}" \ + : \ + : "Ir" (S5P_INFORM0) \ + : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ + "r9", "r10", "lr", "memory") + +/* + * We can't use regular spinlocks. In the switcher case, it is possible + * for an outbound CPU to call power_down() after its inbound counterpart + * is already live using the same logical CPU number which trips lockdep + * debugging. + */ +static arch_spinlock_t exynos_mcpm_lock = __ARCH_SPIN_LOCK_UNLOCKED; +static int +cpu_use_count[EXYNOS5420_CPUS_PER_CLUSTER][EXYNOS5420_NR_CLUSTERS]; + +#define exynos_cluster_usecnt(cluster) \ + (cpu_use_count[0][cluster] + \ + cpu_use_count[1][cluster] + \ + cpu_use_count[2][cluster] + \ + cpu_use_count[3][cluster]) + +#define exynos_cluster_unused(cluster) !exynos_cluster_usecnt(cluster) + +static int exynos_cluster_power_control(unsigned int cluster, int enable) +{ + unsigned int tries = 100; + unsigned int val; + + if (enable) { + exynos_cluster_power_up(cluster); + val = S5P_CORE_LOCAL_PWR_EN; + } else { + exynos_cluster_power_down(cluster); + val = 0; + } + + /* Wait until cluster power control is applied */ + while (tries--) { + if (exynos_cluster_power_state(cluster) == val) + return 0; + + cpu_relax(); + } + pr_debug("timed out waiting for cluster %u to power %s\n", cluster, + enable ? "on" : "off"); + + return -ETIMEDOUT; +} + +static int exynos_power_up(unsigned int cpu, unsigned int cluster) +{ + unsigned int cpunr = cpu + (cluster * EXYNOS5420_CPUS_PER_CLUSTER); + int err = 0; + + pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); + if (cpu >= EXYNOS5420_CPUS_PER_CLUSTER || + cluster >= EXYNOS5420_NR_CLUSTERS) + return -EINVAL; + + /* + * Since this is called with IRQs enabled, and no arch_spin_lock_irq + * variant exists, we need to disable IRQs manually here. + */ + local_irq_disable(); + arch_spin_lock(&exynos_mcpm_lock); + + cpu_use_count[cpu][cluster]++; + if (cpu_use_count[cpu][cluster] == 1) { + bool was_cluster_down = + (exynos_cluster_usecnt(cluster) == 1); + + /* + * Turn on the cluster (L2/COMMON) and then power on the + * cores. + */ + if (was_cluster_down) + err = exynos_cluster_power_control(cluster, 1); + + if (!err) + exynos_cpu_power_up(cpunr); + else + exynos_cluster_power_control(cluster, 0); + } else if (cpu_use_count[cpu][cluster] != 2) { + /* + * The only possible values are: + * 0 = CPU down + * 1 = CPU (still) up + * 2 = CPU requested to be up before it had a chance + * to actually make itself down. + * Any other value is a bug. + */ + BUG(); + } + + arch_spin_unlock(&exynos_mcpm_lock); + local_irq_enable(); + + return err; +} + +/* + * NOTE: This function requires the stack data to be visible through power down + * and can only be executed on processors like A15 and A7 that hit the cache + * with the C bit clear in the SCTLR register. + */ +static void exynos_power_down(void) +{ + unsigned int mpidr, cpu, cluster; + bool last_man = false, skip_wfi = false; + unsigned int cpunr; + + mpidr = read_cpuid_mpidr(); + cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); + cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); + cpunr = cpu + (cluster * EXYNOS5420_CPUS_PER_CLUSTER); + + pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); + BUG_ON(cpu >= EXYNOS5420_CPUS_PER_CLUSTER || + cluster >= EXYNOS5420_NR_CLUSTERS); + + __mcpm_cpu_going_down(cpu, cluster); + + arch_spin_lock(&exynos_mcpm_lock); + BUG_ON(__mcpm_cluster_state(cluster) != CLUSTER_UP); + cpu_use_count[cpu][cluster]--; + if (cpu_use_count[cpu][cluster] == 0) { + exynos_cpu_power_down(cpunr); + + if (exynos_cluster_unused(cluster)) + /* TODO: Turn off the cluster here to save power. */ + last_man = true; + } else if (cpu_use_count[cpu][cluster] == 1) { + /* + * A power_up request went ahead of us. + * Even if we do not want to shut this CPU down, + * the caller expects a certain state as if the WFI + * was aborted. So let's continue with cache cleaning. + */ + skip_wfi = true; + } else { + BUG(); + } + + if (last_man && __mcpm_outbound_enter_critical(cpu, cluster)) { + arch_spin_unlock(&exynos_mcpm_lock); + + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A15) { + /* + * On the Cortex-A15 we need to disable + * L2 prefetching before flushing the cache. + */ + asm volatile( + "mcr p15, 1, %0, c15, c0, 3\n\t" + "isb\n\t" + "dsb" + : : "r" (0x400)); + } + + /* Flush all cache levels for this cluster. */ + exynos_v7_exit_coherency_flush(all); + + /* + * Disable cluster-level coherency by masking + * incoming snoops and DVM messages: + */ + cci_disable_port_by_cpu(mpidr); + + __mcpm_outbound_leave_critical(cluster, CLUSTER_DOWN); + } else { + arch_spin_unlock(&exynos_mcpm_lock); + + /* Disable and flush the local CPU cache. */ + exynos_v7_exit_coherency_flush(louis); + } + + __mcpm_cpu_down(cpu, cluster); + + /* Now we are prepared for power-down, do it: */ + if (!skip_wfi) + wfi(); + + /* Not dead at this point? Let our caller cope. */ +} + +static int exynos_wait_for_powerdown(unsigned int cpu, unsigned int cluster) +{ + unsigned int tries = 100; + unsigned int cpunr = cpu + (cluster * EXYNOS5420_CPUS_PER_CLUSTER); + + pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); + BUG_ON(cpu >= EXYNOS5420_CPUS_PER_CLUSTER || + cluster >= EXYNOS5420_NR_CLUSTERS); + + /* Wait for the core state to be OFF */ + while (tries--) { + if (ACCESS_ONCE(cpu_use_count[cpu][cluster]) == 0) { + if ((exynos_cpu_power_state(cpunr) == 0)) + return 0; /* success: the CPU is halted */ + } + + /* Otherwise, wait and retry: */ + msleep(1); + } + + return -ETIMEDOUT; /* timeout */ +} + +static const struct mcpm_platform_ops exynos_power_ops = { + .power_up = exynos_power_up, + .power_down = exynos_power_down, + .wait_for_powerdown = exynos_wait_for_powerdown, +}; + +static void __init exynos_mcpm_usage_count_init(void) +{ + unsigned int mpidr, cpu, cluster; + + mpidr = read_cpuid_mpidr(); + cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); + cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); + + pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster); + BUG_ON(cpu >= EXYNOS5420_CPUS_PER_CLUSTER || + cluster >= EXYNOS5420_NR_CLUSTERS); + + cpu_use_count[cpu][cluster] = 1; +} + +/* + * Enable cluster-level coherency, in preparation for turning on the MMU. + */ +static void __naked exynos_pm_power_up_setup(unsigned int affinity_level) +{ + asm volatile ("\n" + "cmp r0, #1\n" + "bxne lr\n" + "b cci_enable_port_for_self"); +} + +static const struct of_device_id exynos_dt_mcpm_match[] = { + { .compatible = "samsung,exynos5420" }, + { .compatible = "samsung,exynos5800" }, + {}, +}; + +static int __init exynos_mcpm_init(void) +{ + struct device_node *node; + void __iomem *ns_sram_base_addr; + int ret; + + node = of_find_matching_node(NULL, exynos_dt_mcpm_match); + if (!node) + return -ENODEV; + of_node_put(node); + + if (!cci_probed()) + return -ENODEV; + + node = of_find_compatible_node(NULL, NULL, + "samsung,exynos4210-sysram-ns"); + if (!node) + return -ENODEV; + + ns_sram_base_addr = of_iomap(node, 0); + of_node_put(node); + if (!ns_sram_base_addr) { + pr_err("failed to map non-secure iRAM base address\n"); + return -ENOMEM; + } + + /* + * To increase the stability of KFC reset we need to program + * the PMU SPARE3 register + */ + __raw_writel(EXYNOS5420_SWRESET_KFC_SEL, S5P_PMU_SPARE3); + + exynos_mcpm_usage_count_init(); + + ret = mcpm_platform_register(&exynos_power_ops); + if (!ret) + ret = mcpm_sync_init(exynos_pm_power_up_setup); + if (ret) { + iounmap(ns_sram_base_addr); + return ret; + } + + mcpm_smp_set_ops(); + + pr_info("Exynos MCPM support installed\n"); + + /* + * U-Boot SPL is hardcoded to jump to the start of ns_sram_base_addr + * as part of secondary_cpu_start(). Let's redirect it to the + * mcpm_entry_point(). + */ + __raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */ + __raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */ + __raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8); + + iounmap(ns_sram_base_addr); + + return ret; +} + +early_initcall(exynos_mcpm_init); diff --git a/arch/arm/mach-exynos/mfc.h b/arch/arm/mach-exynos/mfc.h new file mode 100644 index 00000000000..dec93cd5b3c --- /dev/null +++ b/arch/arm/mach-exynos/mfc.h @@ -0,0 +1,16 @@ +/* + * Copyright (C) 2013 Samsung Electronics Co.Ltd + * + * 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. + */ + +#ifndef __MACH_EXYNOS_MFC_H +#define __MACH_EXYNOS_MFC_H __FILE__ + +int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname, + int depth, void *data); + +#endif /* __MACH_EXYNOS_MFC_H */ diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index deba1308ff1..50b9aad5e27 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -20,19 +20,15 @@ #include <linux/jiffies.h> #include <linux/smp.h> #include <linux/io.h> +#include <linux/of_address.h> #include <asm/cacheflush.h> #include <asm/smp_plat.h> #include <asm/smp_scu.h> #include <asm/firmware.h> -#include <mach/hardware.h> -#include <mach/regs-clock.h> -#include <mach/regs-pmu.h> - -#include <plat/cpu.h> - #include "common.h" +#include "regs-pmu.h" extern void exynos4_secondary_startup(void); @@ -40,7 +36,7 @@ static inline void __iomem *cpu_boot_reg_base(void) { if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1) return S5P_INFORM5; - return S5P_VA_SYSRAM; + return sysram_base_addr; } static inline void __iomem *cpu_boot_reg(int cpu) @@ -48,9 +44,11 @@ static inline void __iomem *cpu_boot_reg(int cpu) void __iomem *boot_reg; boot_reg = cpu_boot_reg_base(); + if (!boot_reg) + return ERR_PTR(-ENODEV); if (soc_is_exynos4412()) boot_reg += 4*cpu; - else if (soc_is_exynos5420()) + else if (soc_is_exynos5420() || soc_is_exynos5800()) boot_reg += 4; return boot_reg; } @@ -64,8 +62,7 @@ static void write_pen_release(int val) { pen_release = val; smp_wmb(); - __cpuc_flush_dcache_area((void *)&pen_release, sizeof(pen_release)); - outer_clean_range(__pa(&pen_release), __pa(&pen_release + 1)); + sync_cache_w(&pen_release); } static void __iomem *scu_base_addr(void) @@ -75,7 +72,7 @@ static void __iomem *scu_base_addr(void) static DEFINE_SPINLOCK(boot_lock); -static void __cpuinit exynos_secondary_init(unsigned int cpu) +static void exynos_secondary_init(unsigned int cpu) { /* * let the primary processor know we're out of the @@ -90,10 +87,12 @@ static void __cpuinit exynos_secondary_init(unsigned int cpu) spin_unlock(&boot_lock); } -static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) +static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) { unsigned long timeout; - unsigned long phys_cpu = cpu_logical_map(cpu); + u32 mpidr = cpu_logical_map(cpu); + u32 core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); + int ret = -ENOSYS; /* * Set synchronisation state between this boot processor @@ -106,20 +105,18 @@ static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct * the holding pen - release it, then wait for it to flag * that it has been released by resetting pen_release. * - * Note that "pen_release" is the hardware CPU ID, whereas + * Note that "pen_release" is the hardware CPU core ID, whereas * "cpu" is Linux's internal ID. */ - write_pen_release(phys_cpu); - - if (!(__raw_readl(S5P_ARM_CORE1_STATUS) & S5P_CORE_LOCAL_PWR_EN)) { - __raw_writel(S5P_CORE_LOCAL_PWR_EN, - S5P_ARM_CORE1_CONFIGURATION); + write_pen_release(core_id); + if (!exynos_cpu_power_state(core_id)) { + exynos_cpu_power_up(core_id); timeout = 10; /* wait max 10 ms until cpu1 is on */ - while ((__raw_readl(S5P_ARM_CORE1_STATUS) - & S5P_CORE_LOCAL_PWR_EN) != S5P_CORE_LOCAL_PWR_EN) { + while (exynos_cpu_power_state(core_id) + != S5P_CORE_LOCAL_PWR_EN) { if (timeout-- == 0) break; @@ -150,10 +147,20 @@ static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct * Try to set boot address using firmware first * and fall back to boot register if it fails. */ - if (call_firmware_op(set_cpu_boot_addr, phys_cpu, boot_addr)) - __raw_writel(boot_addr, cpu_boot_reg(phys_cpu)); + ret = call_firmware_op(set_cpu_boot_addr, core_id, boot_addr); + if (ret && ret != -ENOSYS) + goto fail; + if (ret == -ENOSYS) { + void __iomem *boot_reg = cpu_boot_reg(core_id); + + if (IS_ERR(boot_reg)) { + ret = PTR_ERR(boot_reg); + goto fail; + } + __raw_writel(boot_addr, cpu_boot_reg(core_id)); + } - call_firmware_op(cpu_boot, phys_cpu); + call_firmware_op(cpu_boot, core_id); arch_send_wakeup_ipi_mask(cpumask_of(cpu)); @@ -167,9 +174,10 @@ static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct * now the secondary core is starting up let it run its * calibrations, then wait for it to finish */ +fail: spin_unlock(&boot_lock); - return pen_release != -1 ? -ENOSYS : 0; + return pen_release != -1 ? ret : 0; } /* @@ -206,6 +214,8 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) { int i; + exynos_sysram_init(); + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) scu_enable(scu_base_addr()); @@ -219,14 +229,25 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) * boot register if it fails. */ for (i = 1; i < max_cpus; ++i) { - unsigned long phys_cpu; unsigned long boot_addr; + u32 mpidr; + u32 core_id; + int ret; - phys_cpu = cpu_logical_map(i); + mpidr = cpu_logical_map(i); + core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0); boot_addr = virt_to_phys(exynos4_secondary_startup); - if (call_firmware_op(set_cpu_boot_addr, phys_cpu, boot_addr)) - __raw_writel(boot_addr, cpu_boot_reg(phys_cpu)); + ret = call_firmware_op(set_cpu_boot_addr, core_id, boot_addr); + if (ret && ret != -ENOSYS) + break; + if (ret == -ENOSYS) { + void __iomem *boot_reg = cpu_boot_reg(core_id); + + if (IS_ERR(boot_reg)) + break; + __raw_writel(boot_addr, cpu_boot_reg(core_id)); + } } } diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 41c20692a13..202ca73e49c 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -16,50 +16,34 @@ #include <linux/init.h> #include <linux/suspend.h> #include <linux/syscore_ops.h> +#include <linux/cpu_pm.h> #include <linux/io.h> +#include <linux/irqchip/arm-gic.h> #include <linux/err.h> #include <linux/clk.h> #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> #include <asm/smp_scu.h> +#include <asm/suspend.h> -#include <plat/cpu.h> -#include <plat/pm.h> +#include <plat/pm-common.h> #include <plat/pll.h> #include <plat/regs-srom.h> -#include <mach/regs-irq.h> -#include <mach/regs-clock.h> -#include <mach/regs-pmu.h> -#include <mach/pm-core.h> +#include <mach/map.h> #include "common.h" - -static struct sleep_save exynos4_set_clksrc[] = { - { .reg = EXYNOS4_CLKSRC_MASK_TOP , .val = 0x00000001, }, - { .reg = EXYNOS4_CLKSRC_MASK_CAM , .val = 0x11111111, }, - { .reg = EXYNOS4_CLKSRC_MASK_TV , .val = 0x00000111, }, - { .reg = EXYNOS4_CLKSRC_MASK_LCD0 , .val = 0x00001111, }, - { .reg = EXYNOS4_CLKSRC_MASK_MAUDIO , .val = 0x00000001, }, - { .reg = EXYNOS4_CLKSRC_MASK_FSYS , .val = 0x01011111, }, - { .reg = EXYNOS4_CLKSRC_MASK_PERIL0 , .val = 0x01111111, }, - { .reg = EXYNOS4_CLKSRC_MASK_PERIL1 , .val = 0x01110111, }, - { .reg = EXYNOS4_CLKSRC_MASK_DMC , .val = 0x00010000, }, -}; - -static struct sleep_save exynos4210_set_clksrc[] = { - { .reg = EXYNOS4210_CLKSRC_MASK_LCD1 , .val = 0x00001111, }, -}; - -static struct sleep_save exynos4_epll_save[] = { - SAVE_ITEM(EXYNOS4_EPLL_CON0), - SAVE_ITEM(EXYNOS4_EPLL_CON1), -}; - -static struct sleep_save exynos4_vpll_save[] = { - SAVE_ITEM(EXYNOS4_VPLL_CON0), - SAVE_ITEM(EXYNOS4_VPLL_CON1), +#include "regs-pmu.h" + +/** + * struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping + * @hwirq: Hardware IRQ signal of the GIC + * @mask: Mask in PMU wake-up mask register + */ +struct exynos_wkup_irq { + unsigned int hwirq; + u32 mask; }; static struct sleep_save exynos5_sys_save[] = { @@ -75,200 +59,254 @@ static struct sleep_save exynos_core_save[] = { SAVE_ITEM(S5P_SROM_BC3), }; +/* + * GIC wake-up support + */ -/* For Cortex-A9 Diagnostic and Power control register */ -static unsigned int save_arm_register[2]; +static u32 exynos_irqwake_intmask = 0xffffffff; -static int exynos_cpu_suspend(unsigned long arg) +static const struct exynos_wkup_irq exynos4_wkup_irq[] = { + { 76, BIT(1) }, /* RTC alarm */ + { 77, BIT(2) }, /* RTC tick */ + { /* sentinel */ }, +}; + +static const struct exynos_wkup_irq exynos5250_wkup_irq[] = { + { 75, BIT(1) }, /* RTC alarm */ + { 76, BIT(2) }, /* RTC tick */ + { /* sentinel */ }, +}; + +static int exynos_irq_set_wake(struct irq_data *data, unsigned int state) { -#ifdef CONFIG_CACHE_L2X0 - outer_flush_all(); -#endif + const struct exynos_wkup_irq *wkup_irq; if (soc_is_exynos5250()) - flush_cache_all(); - - /* issue the standby signal into the pm unit. */ - cpu_do_idle(); + wkup_irq = exynos5250_wkup_irq; + else + wkup_irq = exynos4_wkup_irq; + + while (wkup_irq->mask) { + if (wkup_irq->hwirq == data->hwirq) { + if (!state) + exynos_irqwake_intmask |= wkup_irq->mask; + else + exynos_irqwake_intmask &= ~wkup_irq->mask; + return 0; + } + ++wkup_irq; + } - pr_info("Failed to suspend the system\n"); - return 1; /* Aborting suspend */ + return -ENOENT; } -static void exynos_pm_prepare(void) +/** + * exynos_core_power_down : power down the specified cpu + * @cpu : the cpu to power down + * + * Power down the specified cpu. The sequence must be finished by a + * call to cpu_do_idle() + * + */ +void exynos_cpu_power_down(int cpu) { - unsigned int tmp; - - s3c_pm_do_save(exynos_core_save, ARRAY_SIZE(exynos_core_save)); - - if (!soc_is_exynos5250()) { - s3c_pm_do_save(exynos4_epll_save, ARRAY_SIZE(exynos4_epll_save)); - s3c_pm_do_save(exynos4_vpll_save, ARRAY_SIZE(exynos4_vpll_save)); - } else { - s3c_pm_do_save(exynos5_sys_save, ARRAY_SIZE(exynos5_sys_save)); - /* Disable USE_RETENTION of JPEG_MEM_OPTION */ - tmp = __raw_readl(EXYNOS5_JPEG_MEM_OPTION); - tmp &= ~EXYNOS5_OPTION_USE_RETENTION; - __raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION); - } + __raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu)); +} - /* Set value of power down register for sleep mode */ +/** + * exynos_cpu_power_up : power up the specified cpu + * @cpu : the cpu to power up + * + * Power up the specified cpu + */ +void exynos_cpu_power_up(int cpu) +{ + __raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_ARM_CORE_CONFIGURATION(cpu)); +} - exynos_sys_powerdown_conf(SYS_SLEEP); - __raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1); +/** + * exynos_cpu_power_state : returns the power state of the cpu + * @cpu : the cpu to retrieve the power state from + * + */ +int exynos_cpu_power_state(int cpu) +{ + return (__raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) & + S5P_CORE_LOCAL_PWR_EN); +} - /* ensure at least INFORM0 has the resume address */ +/** + * exynos_cluster_power_down : power down the specified cluster + * @cluster : the cluster to power down + */ +void exynos_cluster_power_down(int cluster) +{ + __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster)); +} - __raw_writel(virt_to_phys(s3c_cpu_resume), S5P_INFORM0); +/** + * exynos_cluster_power_up : power up the specified cluster + * @cluster : the cluster to power up + */ +void exynos_cluster_power_up(int cluster) +{ + __raw_writel(S5P_CORE_LOCAL_PWR_EN, + EXYNOS_COMMON_CONFIGURATION(cluster)); +} - /* Before enter central sequence mode, clock src register have to set */ +/** + * exynos_cluster_power_state : returns the power state of the cluster + * @cluster : the cluster to retrieve the power state from + * + */ +int exynos_cluster_power_state(int cluster) +{ + return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) & + S5P_CORE_LOCAL_PWR_EN); +} - if (!soc_is_exynos5250()) - s3c_pm_do_restore_core(exynos4_set_clksrc, ARRAY_SIZE(exynos4_set_clksrc)); +#define EXYNOS_BOOT_VECTOR_ADDR (samsung_rev() == EXYNOS4210_REV_1_1 ? \ + S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ + (sysram_base_addr + 0x24) : S5P_INFORM0)) +#define EXYNOS_BOOT_VECTOR_FLAG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ + S5P_INFORM6 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ + (sysram_base_addr + 0x20) : S5P_INFORM1)) - if (soc_is_exynos4210()) - s3c_pm_do_restore_core(exynos4210_set_clksrc, ARRAY_SIZE(exynos4210_set_clksrc)); +#define S5P_CHECK_AFTR 0xFCBA0D10 +#define S5P_CHECK_SLEEP 0x00000BAD +/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ +static void exynos_set_wakeupmask(long mask) +{ + __raw_writel(mask, S5P_WAKEUP_MASK); } -static int exynos_pm_add(struct device *dev, struct subsys_interface *sif) +static void exynos_cpu_set_boot_vector(long flags) { - pm_cpu_prep = exynos_pm_prepare; - pm_cpu_sleep = exynos_cpu_suspend; - - return 0; + __raw_writel(virt_to_phys(exynos_cpu_resume), EXYNOS_BOOT_VECTOR_ADDR); + __raw_writel(flags, EXYNOS_BOOT_VECTOR_FLAG); } -static unsigned long pll_base_rate; - -static void exynos4_restore_pll(void) +void exynos_enter_aftr(void) { - unsigned long pll_con, locktime, lockcnt; - unsigned long pll_in_rate; - unsigned int p_div, epll_wait = 0, vpll_wait = 0; - - if (pll_base_rate == 0) - return; + exynos_set_wakeupmask(0x0000ff3e); + exynos_cpu_set_boot_vector(S5P_CHECK_AFTR); + /* Set value of power down register for aftr mode */ + exynos_sys_powerdown_conf(SYS_AFTR); +} - pll_in_rate = pll_base_rate; +/* For Cortex-A9 Diagnostic and Power control register */ +static unsigned int save_arm_register[2]; - /* EPLL */ - pll_con = exynos4_epll_save[0].val; +static void exynos_cpu_save_register(void) +{ + unsigned long tmp; - if (pll_con & (1 << 31)) { - pll_con &= (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT); - p_div = (pll_con >> PLL46XX_PDIV_SHIFT); + /* Save Power control register */ + asm ("mrc p15, 0, %0, c15, c0, 0" + : "=r" (tmp) : : "cc"); - pll_in_rate /= 1000000; + save_arm_register[0] = tmp; - locktime = (3000 / pll_in_rate) * p_div; - lockcnt = locktime * 10000 / (10000 / pll_in_rate); + /* Save Diagnostic register */ + asm ("mrc p15, 0, %0, c15, c0, 1" + : "=r" (tmp) : : "cc"); - __raw_writel(lockcnt, EXYNOS4_EPLL_LOCK); + save_arm_register[1] = tmp; +} - s3c_pm_do_restore_core(exynos4_epll_save, - ARRAY_SIZE(exynos4_epll_save)); - epll_wait = 1; - } +static void exynos_cpu_restore_register(void) +{ + unsigned long tmp; - pll_in_rate = pll_base_rate; + /* Restore Power control register */ + tmp = save_arm_register[0]; - /* VPLL */ - pll_con = exynos4_vpll_save[0].val; + asm volatile ("mcr p15, 0, %0, c15, c0, 0" + : : "r" (tmp) + : "cc"); - if (pll_con & (1 << 31)) { - pll_in_rate /= 1000000; - /* 750us */ - locktime = 750; - lockcnt = locktime * 10000 / (10000 / pll_in_rate); + /* Restore Diagnostic register */ + tmp = save_arm_register[1]; - __raw_writel(lockcnt, EXYNOS4_VPLL_LOCK); + asm volatile ("mcr p15, 0, %0, c15, c0, 1" + : : "r" (tmp) + : "cc"); +} - s3c_pm_do_restore_core(exynos4_vpll_save, - ARRAY_SIZE(exynos4_vpll_save)); - vpll_wait = 1; - } +static int exynos_cpu_suspend(unsigned long arg) +{ +#ifdef CONFIG_CACHE_L2X0 + outer_flush_all(); +#endif - /* Wait PLL locking */ + if (soc_is_exynos5250()) + flush_cache_all(); - do { - if (epll_wait) { - pll_con = __raw_readl(EXYNOS4_EPLL_CON0); - if (pll_con & (1 << EXYNOS4_EPLLCON0_LOCKED_SHIFT)) - epll_wait = 0; - } + /* issue the standby signal into the pm unit. */ + cpu_do_idle(); - if (vpll_wait) { - pll_con = __raw_readl(EXYNOS4_VPLL_CON0); - if (pll_con & (1 << EXYNOS4_VPLLCON0_LOCKED_SHIFT)) - vpll_wait = 0; - } - } while (epll_wait || vpll_wait); + pr_info("Failed to suspend the system\n"); + return 1; /* Aborting suspend */ } -static struct subsys_interface exynos_pm_interface = { - .name = "exynos_pm", - .subsys = &exynos_subsys, - .add_dev = exynos_pm_add, -}; - -static __init int exynos_pm_drvinit(void) +static void exynos_pm_prepare(void) { - struct clk *pll_base; unsigned int tmp; - s3c_pm_init(); + /* Set wake-up mask registers */ + __raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK); + __raw_writel(exynos_irqwake_intmask & ~(1 << 31), S5P_WAKEUP_MASK); - /* All wakeup disable */ + s3c_pm_do_save(exynos_core_save, ARRAY_SIZE(exynos_core_save)); - tmp = __raw_readl(S5P_WAKEUP_MASK); - tmp |= ((0xFF << 8) | (0x1F << 1)); - __raw_writel(tmp, S5P_WAKEUP_MASK); + if (soc_is_exynos5250()) { + s3c_pm_do_save(exynos5_sys_save, ARRAY_SIZE(exynos5_sys_save)); + /* Disable USE_RETENTION of JPEG_MEM_OPTION */ + tmp = __raw_readl(EXYNOS5_JPEG_MEM_OPTION); + tmp &= ~EXYNOS5_OPTION_USE_RETENTION; + __raw_writel(tmp, EXYNOS5_JPEG_MEM_OPTION); + } - if (!soc_is_exynos5250()) { - pll_base = clk_get(NULL, "xtal"); + /* Set value of power down register for sleep mode */ - if (!IS_ERR(pll_base)) { - pll_base_rate = clk_get_rate(pll_base); - clk_put(pll_base); - } - } + exynos_sys_powerdown_conf(SYS_SLEEP); + __raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1); - return subsys_interface_register(&exynos_pm_interface); + /* ensure at least INFORM0 has the resume address */ + + __raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0); } -arch_initcall(exynos_pm_drvinit); -static int exynos_pm_suspend(void) +static void exynos_pm_central_suspend(void) { unsigned long tmp; /* Setting Central Sequence Register for power down mode */ - tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); tmp &= ~S5P_CENTRAL_LOWPWR_CFG; __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); +} + +static int exynos_pm_suspend(void) +{ + unsigned long tmp; + + exynos_pm_central_suspend(); /* Setting SEQ_OPTION register */ tmp = (S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0); __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION); - if (!soc_is_exynos5250()) { - /* Save Power control register */ - asm ("mrc p15, 0, %0, c15, c0, 0" - : "=r" (tmp) : : "cc"); - save_arm_register[0] = tmp; - - /* Save Diagnostic register */ - asm ("mrc p15, 0, %0, c15, c0, 1" - : "=r" (tmp) : : "cc"); - save_arm_register[1] = tmp; - } + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) + exynos_cpu_save_register(); return 0; } -static void exynos_pm_resume(void) +static int exynos_pm_central_resume(void) { unsigned long tmp; @@ -285,22 +323,20 @@ static void exynos_pm_resume(void) /* clear the wakeup state register */ __raw_writel(0x0, S5P_WAKEUP_STAT); /* No need to perform below restore code */ - goto early_wakeup; - } - if (!soc_is_exynos5250()) { - /* Restore Power control register */ - tmp = save_arm_register[0]; - asm volatile ("mcr p15, 0, %0, c15, c0, 0" - : : "r" (tmp) - : "cc"); - - /* Restore Diagnostic register */ - tmp = save_arm_register[1]; - asm volatile ("mcr p15, 0, %0, c15, c0, 1" - : : "r" (tmp) - : "cc"); + return -1; } + return 0; +} + +static void exynos_pm_resume(void) +{ + if (exynos_pm_central_resume()) + goto early_wakeup; + + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) + exynos_cpu_restore_register(); + /* For release retention */ __raw_writel((1 << 28), S5P_PAD_RET_MAUDIO_OPTION); @@ -317,13 +353,8 @@ static void exynos_pm_resume(void) s3c_pm_do_restore_core(exynos_core_save, ARRAY_SIZE(exynos_core_save)); - if (!soc_is_exynos5250()) { - exynos4_restore_pll(); - -#ifdef CONFIG_SMP + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) scu_enable(S5P_VA_SCU); -#endif - } early_wakeup: @@ -338,9 +369,115 @@ static struct syscore_ops exynos_pm_syscore_ops = { .resume = exynos_pm_resume, }; -static __init int exynos_pm_syscore_init(void) +/* + * Suspend Ops + */ + +static int exynos_suspend_enter(suspend_state_t state) +{ + int ret; + + s3c_pm_debug_init(); + + S3C_PMDBG("%s: suspending the system...\n", __func__); + + S3C_PMDBG("%s: wakeup masks: %08x,%08x\n", __func__, + exynos_irqwake_intmask, exynos_get_eint_wake_mask()); + + if (exynos_irqwake_intmask == -1U + && exynos_get_eint_wake_mask() == -1U) { + pr_err("%s: No wake-up sources!\n", __func__); + pr_err("%s: Aborting sleep\n", __func__); + return -EINVAL; + } + + s3c_pm_save_uarts(); + exynos_pm_prepare(); + flush_cache_all(); + s3c_pm_check_store(); + + ret = cpu_suspend(0, exynos_cpu_suspend); + if (ret) + return ret; + + s3c_pm_restore_uarts(); + + S3C_PMDBG("%s: wakeup stat: %08x\n", __func__, + __raw_readl(S5P_WAKEUP_STAT)); + + s3c_pm_check_restore(); + + S3C_PMDBG("%s: resuming the system...\n", __func__); + + return 0; +} + +static int exynos_suspend_prepare(void) +{ + s3c_pm_check_prepare(); + + return 0; +} + +static void exynos_suspend_finish(void) +{ + s3c_pm_check_cleanup(); +} + +static const struct platform_suspend_ops exynos_suspend_ops = { + .enter = exynos_suspend_enter, + .prepare = exynos_suspend_prepare, + .finish = exynos_suspend_finish, + .valid = suspend_valid_only_mem, +}; + +static int exynos_cpu_pm_notifier(struct notifier_block *self, + unsigned long cmd, void *v) +{ + int cpu = smp_processor_id(); + + switch (cmd) { + case CPU_PM_ENTER: + if (cpu == 0) { + exynos_pm_central_suspend(); + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) + exynos_cpu_save_register(); + } + break; + + case CPU_PM_EXIT: + if (cpu == 0) { + if (read_cpuid_part_number() == + ARM_CPU_PART_CORTEX_A9) { + scu_enable(S5P_VA_SCU); + exynos_cpu_restore_register(); + } + exynos_pm_central_resume(); + } + break; + } + + return NOTIFY_OK; +} + +static struct notifier_block exynos_cpu_pm_notifier_block = { + .notifier_call = exynos_cpu_pm_notifier, +}; + +void __init exynos_pm_init(void) { + u32 tmp; + + cpu_pm_register_notifier(&exynos_cpu_pm_notifier_block); + + /* Platform-specific GIC callback */ + gic_arch_extn.irq_set_wake = exynos_irq_set_wake; + + /* All wakeup disable */ + tmp = __raw_readl(S5P_WAKEUP_MASK); + tmp |= ((0xFF << 8) | (0x1F << 1)); + __raw_writel(tmp, S5P_WAKEUP_MASK); + register_syscore_ops(&exynos_pm_syscore_ops); - return 0; + suspend_set_ops(&exynos_suspend_ops); } -arch_initcall(exynos_pm_syscore_init); diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c index 1703593e366..797cb134bff 100644 --- a/arch/arm/mach-exynos/pm_domains.c +++ b/arch/arm/mach-exynos/pm_domains.c @@ -17,13 +17,15 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/pm_domain.h> +#include <linux/clk.h> #include <linux/delay.h> #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/sched.h> -#include <mach/regs-pmu.h> -#include <plat/devs.h> +#include "regs-pmu.h" + +#define MAX_CLK_PER_DOMAIN 4 /* * Exynos specific wrapper around the generic power domain @@ -33,6 +35,9 @@ struct exynos_pm_domain { char const *name; bool is_off; struct generic_pm_domain pd; + struct clk *oscclk; + struct clk *clk[MAX_CLK_PER_DOMAIN]; + struct clk *pclk[MAX_CLK_PER_DOMAIN]; }; static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on) @@ -45,6 +50,19 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on) pd = container_of(domain, struct exynos_pm_domain, pd); base = pd->base; + /* Set oscclk before powering off a domain*/ + if (!power_on) { + int i; + + for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { + if (IS_ERR(pd->clk[i])) + break; + if (clk_set_parent(pd->clk[i], pd->oscclk)) + pr_err("%s: error setting oscclk as parent to clock %d\n", + pd->name, i); + } + } + pwr = power_on ? S5P_INT_LOCAL_PWR_EN : 0; __raw_writel(pwr, base); @@ -61,6 +79,20 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on) cpu_relax(); usleep_range(80, 100); } + + /* Restore clocks after powering on a domain*/ + if (power_on) { + int i; + + for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { + if (IS_ERR(pd->clk[i])) + break; + if (clk_set_parent(pd->clk[i], pd->pclk[i])) + pr_err("%s: error setting parent to clock%d\n", + pd->name, i); + } + } + return 0; } @@ -153,9 +185,11 @@ static __init int exynos4_pm_init_power_domain(void) for_each_compatible_node(np, NULL, "samsung,exynos4210-pd") { struct exynos_pm_domain *pd; - int on; + int on, i; + struct device *dev; pdev = of_find_device_by_node(np); + dev = &pdev->dev; pd = kzalloc(sizeof(*pd), GFP_KERNEL); if (!pd) { @@ -171,6 +205,30 @@ static __init int exynos4_pm_init_power_domain(void) pd->pd.power_on = exynos_pd_power_on; pd->pd.of_node = np; + pd->oscclk = clk_get(dev, "oscclk"); + if (IS_ERR(pd->oscclk)) + goto no_clk; + + for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { + char clk_name[8]; + + snprintf(clk_name, sizeof(clk_name), "clk%d", i); + pd->clk[i] = clk_get(dev, clk_name); + if (IS_ERR(pd->clk[i])) + break; + snprintf(clk_name, sizeof(clk_name), "pclk%d", i); + pd->pclk[i] = clk_get(dev, clk_name); + if (IS_ERR(pd->pclk[i])) { + clk_put(pd->clk[i]); + pd->clk[i] = ERR_PTR(-EINVAL); + break; + } + } + + if (IS_ERR(pd->clk[0])) + clk_put(pd->oscclk); + +no_clk: platform_set_drvdata(pdev, pd); on = __raw_readl(pd->base + 0x4) & S5P_INT_LOCAL_PWR_EN; @@ -183,9 +241,3 @@ static __init int exynos4_pm_init_power_domain(void) return 0; } arch_initcall(exynos4_pm_init_power_domain); - -int __init exynos_pm_late_initcall(void) -{ - pm_genpd_poweroff_unused(); - return 0; -} diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c index 97d68852625..fb0deda3b3a 100644 --- a/arch/arm/mach-exynos/pmu.c +++ b/arch/arm/mach-exynos/pmu.c @@ -13,13 +13,12 @@ #include <linux/kernel.h> #include <linux/bug.h> -#include <mach/regs-clock.h> - #include "common.h" +#include "regs-pmu.h" -static struct exynos_pmu_conf *exynos_pmu_config; +static const struct exynos_pmu_conf *exynos_pmu_config; -static struct exynos_pmu_conf exynos4210_pmu_config[] = { +static const struct exynos_pmu_conf exynos4210_pmu_config[] = { /* { .reg = address, .val = { AFTR, LPA, SLEEP } */ { S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } }, { S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } }, @@ -95,7 +94,7 @@ static struct exynos_pmu_conf exynos4210_pmu_config[] = { { PMU_TABLE_END,}, }; -static struct exynos_pmu_conf exynos4x12_pmu_config[] = { +static const struct exynos_pmu_conf exynos4x12_pmu_config[] = { { S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } }, { S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } }, { S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } }, @@ -203,7 +202,7 @@ static struct exynos_pmu_conf exynos4x12_pmu_config[] = { { PMU_TABLE_END,}, }; -static struct exynos_pmu_conf exynos4412_pmu_config[] = { +static const struct exynos_pmu_conf exynos4412_pmu_config[] = { { S5P_ARM_CORE2_LOWPWR, { 0x0, 0x0, 0x2 } }, { S5P_DIS_IRQ_CORE2, { 0x0, 0x0, 0x0 } }, { S5P_DIS_IRQ_CENTRAL2, { 0x0, 0x0, 0x0 } }, @@ -213,7 +212,7 @@ static struct exynos_pmu_conf exynos4412_pmu_config[] = { { PMU_TABLE_END,}, }; -static struct exynos_pmu_conf exynos5250_pmu_config[] = { +static const struct exynos_pmu_conf exynos5250_pmu_config[] = { /* { .reg = address, .val = { AFTR, LPA, SLEEP } */ { EXYNOS5_ARM_CORE0_SYS_PWR_REG, { 0x0, 0x0, 0x2} }, { EXYNOS5_DIS_IRQ_ARM_CORE0_LOCAL_SYS_PWR_REG, { 0x0, 0x0, 0x0} }, @@ -317,7 +316,7 @@ static struct exynos_pmu_conf exynos5250_pmu_config[] = { { PMU_TABLE_END,}, }; -static void __iomem *exynos5_list_both_cnt_feed[] = { +static void __iomem * const exynos5_list_both_cnt_feed[] = { EXYNOS5_ARM_CORE0_OPTION, EXYNOS5_ARM_CORE1_OPTION, EXYNOS5_ARM_COMMON_OPTION, @@ -331,7 +330,7 @@ static void __iomem *exynos5_list_both_cnt_feed[] = { EXYNOS5_TOP_PWR_SYSMEM_OPTION, }; -static void __iomem *exynos5_list_diable_wfi_wfe[] = { +static void __iomem * const exynos5_list_diable_wfi_wfe[] = { EXYNOS5_ARM_CORE1_OPTION, EXYNOS5_FSYS_ARM_OPTION, EXYNOS5_ISP_ARM_OPTION, diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h index 57344b7e98c..1d13b08708f 100644 --- a/arch/arm/mach-exynos/include/mach/regs-pmu.h +++ b/arch/arm/mach-exynos/regs-pmu.h @@ -24,13 +24,8 @@ #define S5P_CENTRAL_SEQ_OPTION S5P_PMUREG(0x0208) #define S5P_USE_STANDBY_WFI0 (1 << 16) -#define S5P_USE_STANDBY_WFI1 (1 << 17) -#define S5P_USE_STANDBYWFI_ISP_ARM (1 << 18) #define S5P_USE_STANDBY_WFE0 (1 << 24) -#define S5P_USE_STANDBY_WFE1 (1 << 25) -#define S5P_USE_STANDBYWFE_ISP_ARM (1 << 26) -#define S5P_SWRESET S5P_PMUREG(0x0400) #define EXYNOS_SWRESET S5P_PMUREG(0x0400) #define EXYNOS5440_SWRESET S5P_PMUREG(0x00C4) @@ -38,25 +33,12 @@ #define S5P_EINT_WAKEUP_MASK S5P_PMUREG(0x0604) #define S5P_WAKEUP_MASK S5P_PMUREG(0x0608) -#define S5P_HDMI_PHY_CONTROL S5P_PMUREG(0x0700) -#define S5P_HDMI_PHY_ENABLE (1 << 0) - -#define S5P_DAC_PHY_CONTROL S5P_PMUREG(0x070C) -#define S5P_DAC_PHY_ENABLE (1 << 0) - -#define S5P_MIPI_DPHY_CONTROL(n) S5P_PMUREG(0x0710 + (n) * 4) -#define S5P_MIPI_DPHY_ENABLE (1 << 0) -#define S5P_MIPI_DPHY_SRESETN (1 << 1) -#define S5P_MIPI_DPHY_MRESETN (1 << 2) - #define S5P_INFORM0 S5P_PMUREG(0x0800) #define S5P_INFORM1 S5P_PMUREG(0x0804) -#define S5P_INFORM2 S5P_PMUREG(0x0808) -#define S5P_INFORM3 S5P_PMUREG(0x080C) -#define S5P_INFORM4 S5P_PMUREG(0x0810) #define S5P_INFORM5 S5P_PMUREG(0x0814) #define S5P_INFORM6 S5P_PMUREG(0x0818) #define S5P_INFORM7 S5P_PMUREG(0x081C) +#define S5P_PMU_SPARE3 S5P_PMUREG(0x090C) #define S5P_ARM_CORE0_LOWPWR S5P_PMUREG(0x1000) #define S5P_DIS_IRQ_CORE0 S5P_PMUREG(0x1004) @@ -124,23 +106,17 @@ #define S5P_GPS_LOWPWR S5P_PMUREG(0x139C) #define S5P_GPS_ALIVE_LOWPWR S5P_PMUREG(0x13A0) -#define S5P_ARM_CORE0_CONFIGURATION S5P_PMUREG(0x2000) -#define S5P_ARM_CORE0_OPTION S5P_PMUREG(0x2008) -#define S5P_ARM_CORE1_CONFIGURATION S5P_PMUREG(0x2080) -#define S5P_ARM_CORE1_STATUS S5P_PMUREG(0x2084) -#define S5P_ARM_CORE1_OPTION S5P_PMUREG(0x2088) +#define EXYNOS_ARM_CORE0_CONFIGURATION S5P_PMUREG(0x2000) +#define EXYNOS_ARM_CORE_CONFIGURATION(_nr) \ + (EXYNOS_ARM_CORE0_CONFIGURATION + (0x80 * (_nr))) +#define EXYNOS_ARM_CORE_STATUS(_nr) \ + (EXYNOS_ARM_CORE_CONFIGURATION(_nr) + 0x4) -#define S5P_ARM_COMMON_OPTION S5P_PMUREG(0x2408) -#define S5P_TOP_PWR_OPTION S5P_PMUREG(0x2C48) -#define S5P_CAM_OPTION S5P_PMUREG(0x3C08) -#define S5P_TV_OPTION S5P_PMUREG(0x3C28) -#define S5P_MFC_OPTION S5P_PMUREG(0x3C48) -#define S5P_G3D_OPTION S5P_PMUREG(0x3C68) -#define S5P_LCD0_OPTION S5P_PMUREG(0x3C88) -#define S5P_LCD1_OPTION S5P_PMUREG(0x3CA8) -#define S5P_MAUDIO_OPTION S5P_PMUREG(0x3CC8) -#define S5P_GPS_OPTION S5P_PMUREG(0x3CE8) -#define S5P_GPS_ALIVE_OPTION S5P_PMUREG(0x3D08) +#define EXYNOS_ARM_COMMON_CONFIGURATION S5P_PMUREG(0x2500) +#define EXYNOS_COMMON_CONFIGURATION(_nr) \ + (EXYNOS_ARM_COMMON_CONFIGURATION + (0x80 * (_nr))) +#define EXYNOS_COMMON_STATUS(_nr) \ + (EXYNOS_COMMON_CONFIGURATION(_nr) + 0x4) #define S5P_PAD_RET_MAUDIO_OPTION S5P_PMUREG(0x3028) #define S5P_PAD_RET_GPIO_OPTION S5P_PMUREG(0x3108) @@ -150,28 +126,10 @@ #define S5P_PAD_RET_EBIA_OPTION S5P_PMUREG(0x3188) #define S5P_PAD_RET_EBIB_OPTION S5P_PMUREG(0x31A8) -#define S5P_PMU_CAM_CONF S5P_PMUREG(0x3C00) -#define S5P_PMU_TV_CONF S5P_PMUREG(0x3C20) -#define S5P_PMU_MFC_CONF S5P_PMUREG(0x3C40) -#define S5P_PMU_G3D_CONF S5P_PMUREG(0x3C60) -#define S5P_PMU_LCD0_CONF S5P_PMUREG(0x3C80) -#define S5P_PMU_GPS_CONF S5P_PMUREG(0x3CE0) - -#define S5P_PMU_SATA_PHY_CONTROL_EN 0x1 #define S5P_CORE_LOCAL_PWR_EN 0x3 #define S5P_INT_LOCAL_PWR_EN 0x7 -#define S5P_CHECK_SLEEP 0x00000BAD - /* Only for EXYNOS4210 */ -#define S5P_USBDEVICE_PHY_CONTROL S5P_PMUREG(0x0704) -#define S5P_USBDEVICE_PHY_ENABLE (1 << 0) - -#define S5P_USBHOST_PHY_CONTROL S5P_PMUREG(0x0708) -#define S5P_USBHOST_PHY_ENABLE (1 << 0) - -#define S5P_PMU_SATA_PHY_CONTROL S5P_PMUREG(0x0720) - #define S5P_CMU_CLKSTOP_LCD1_LOWPWR S5P_PMUREG(0x1154) #define S5P_CMU_RESET_LCD1_LOWPWR S5P_PMUREG(0x1174) #define S5P_MODIMIF_MEM_LOWPWR S5P_PMUREG(0x11C4) @@ -179,8 +137,6 @@ #define S5P_SATA_MEM_LOWPWR S5P_PMUREG(0x11E4) #define S5P_LCD1_LOWPWR S5P_PMUREG(0x1394) -#define S5P_PMU_LCD1_CONF S5P_PMUREG(0x3CA0) - /* Only for EXYNOS4x12 */ #define S5P_ISP_ARM_LOWPWR S5P_PMUREG(0x1050) #define S5P_DIS_IRQ_ISP_ARM_LOCAL_LOWPWR S5P_PMUREG(0x1054) @@ -348,13 +304,9 @@ #define EXYNOS5_TOP_PWR_OPTION S5P_PMUREG(0x2C48) #define EXYNOS5_TOP_PWR_SYSMEM_OPTION S5P_PMUREG(0x2CC8) #define EXYNOS5_JPEG_MEM_OPTION S5P_PMUREG(0x2F48) -#define EXYNOS5_GSCL_STATUS S5P_PMUREG(0x4004) -#define EXYNOS5_ISP_STATUS S5P_PMUREG(0x4024) #define EXYNOS5_GSCL_OPTION S5P_PMUREG(0x4008) #define EXYNOS5_ISP_OPTION S5P_PMUREG(0x4028) #define EXYNOS5_MFC_OPTION S5P_PMUREG(0x4048) -#define EXYNOS5_G3D_CONFIGURATION S5P_PMUREG(0x4060) -#define EXYNOS5_G3D_STATUS S5P_PMUREG(0x4064) #define EXYNOS5_G3D_OPTION S5P_PMUREG(0x4068) #define EXYNOS5_DISP1_OPTION S5P_PMUREG(0x40A8) #define EXYNOS5_MAU_OPTION S5P_PMUREG(0x40C8) @@ -362,7 +314,6 @@ #define EXYNOS5_USE_SC_FEEDBACK (1 << 1) #define EXYNOS5_USE_SC_COUNTER (1 << 0) -#define EXYNOS5_MANUAL_L2RSTDISABLE_CONTROL (1 << 2) #define EXYNOS5_SKIP_DEACTIVATE_ACEACP_IN_PWDN (1 << 7) #define EXYNOS5_OPTION_USE_STANDBYWFE (1 << 24) @@ -370,4 +321,6 @@ #define EXYNOS5_OPTION_USE_RETENTION (1 << 4) +#define EXYNOS5420_SWRESET_KFC_SEL 0x3 + #endif /* __ASM_ARCH_REGS_PMU_H */ diff --git a/arch/arm/mach-exynos/sleep.S b/arch/arm/mach-exynos/sleep.S new file mode 100644 index 00000000000..108a45f4bb6 --- /dev/null +++ b/arch/arm/mach-exynos/sleep.S @@ -0,0 +1,57 @@ +/* + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Exynos low-level resume code + * + * 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. + */ + +#include <linux/linkage.h> + +#define CPU_MASK 0xff0ffff0 +#define CPU_CORTEX_A9 0x410fc090 + + /* + * The following code is located into the .data section. This is to + * allow l2x0_regs_phys to be accessed with a relative load while we + * can't rely on any MMU translation. We could have put l2x0_regs_phys + * in the .text section as well, but some setups might insist on it to + * be truly read-only. (Reference from: arch/arm/kernel/sleep.S) + */ + .data + .align + + /* + * sleep magic, to allow the bootloader to check for an valid + * image to resume to. Must be the first word before the + * exynos_cpu_resume entry. + */ + + .word 0x2bedf00d + + /* + * exynos_cpu_resume + * + * resume code entry for bootloader to call + */ + +ENTRY(exynos_cpu_resume) +#ifdef CONFIG_CACHE_L2X0 + mrc p15, 0, r0, c0, c0, 0 + ldr r1, =CPU_MASK + and r0, r0, r1 + ldr r1, =CPU_CORTEX_A9 + cmp r0, r1 + bleq l2c310_early_resume +#endif + b cpu_resume +ENDPROC(exynos_cpu_resume) |