diff options
Diffstat (limited to 'arch/arm/mach-integrator')
30 files changed, 1318 insertions, 2033 deletions
diff --git a/arch/arm/mach-integrator/Kconfig b/arch/arm/mach-integrator/Kconfig index 27db275b367..64f8e2564a3 100644 --- a/arch/arm/mach-integrator/Kconfig +++ b/arch/arm/mach-integrator/Kconfig @@ -4,6 +4,11 @@ menu "Integrator Options" config ARCH_INTEGRATOR_AP bool "Support Integrator/AP and Integrator/PP2 platforms" + select CLKSRC_MMIO + select MIGHT_HAVE_PCI + select SERIAL_AMBA_PL010 if TTY + select SERIAL_AMBA_PL010_CONSOLE if TTY + select SOC_BUS help Include support for the ARM(R) Integrator/AP and Integrator/PP2 platforms. @@ -12,6 +17,10 @@ config ARCH_INTEGRATOR_CP bool "Support Integrator/CP platform" select ARCH_CINTEGRATOR select ARM_TIMER_SP804 + select PLAT_VERSATILE_CLCD + select SERIAL_AMBA_PL011 if TTY + select SERIAL_AMBA_PL011_CONSOLE if TTY + select SOC_BUS help Include support for the ARM(R) Integrator CP platform. @@ -19,8 +28,11 @@ config ARCH_CINTEGRATOR bool config INTEGRATOR_IMPD1 - tristate "Include support for Integrator/IM-PD1" + bool "Include support for Integrator/IM-PD1" depends on ARCH_INTEGRATOR_AP + select ARCH_REQUIRE_GPIOLIB + select ARM_VIC + select GPIO_PL061 if GPIOLIB help The IM-PD1 is an add-on logic module for the Integrator which allows ARM(R) Ltd PrimeCells to be developed and evaluated. diff --git a/arch/arm/mach-integrator/Makefile b/arch/arm/mach-integrator/Makefile index ebeef966e1f..ec759ded7b6 100644 --- a/arch/arm/mach-integrator/Makefile +++ b/arch/arm/mach-integrator/Makefile @@ -4,11 +4,9 @@ # Object file lists. -obj-y := core.o lm.o +obj-y := core.o lm.o leds.o obj-$(CONFIG_ARCH_INTEGRATOR_AP) += integrator_ap.o obj-$(CONFIG_ARCH_INTEGRATOR_CP) += integrator_cp.o -obj-$(CONFIG_LEDS) += leds.o -obj-$(CONFIG_PCI) += pci_v3.o pci.o -obj-$(CONFIG_CPU_FREQ_INTEGRATOR) += cpu.o +obj-$(CONFIG_PCI) += pci_v3.o obj-$(CONFIG_INTEGRATOR_IMPD1) += impd1.o diff --git a/arch/arm/mach-integrator/Makefile.boot b/arch/arm/mach-integrator/Makefile.boot index c7e75acfe6c..ff0a4b5b0a8 100644 --- a/arch/arm/mach-integrator/Makefile.boot +++ b/arch/arm/mach-integrator/Makefile.boot @@ -1,4 +1,4 @@ - zreladdr-y := 0x00008000 + zreladdr-y += 0x00008000 params_phys-y := 0x00000100 initrd_phys-y := 0x00800000 diff --git a/arch/arm/mach-integrator/include/mach/cm.h b/arch/arm/mach-integrator/cm.h index 1ab353e2359..4ecff7bff48 100644 --- a/arch/arm/mach-integrator/include/mach/cm.h +++ b/arch/arm/mach-integrator/cm.h @@ -1,8 +1,13 @@ /* - * update the core module control register. + * access the core module control register. */ +u32 cm_get(void); void cm_control(u32, u32); +struct device_node; +void cm_init(void); +void cm_clear_irqs(void); + #define CM_CTRL_LED (1 << 0) #define CM_CTRL_nMBDET (1 << 1) #define CM_CTRL_REMAP (1 << 2) @@ -24,9 +29,9 @@ void cm_control(u32, u32); #define CM_CTRL_LCDBIASDN (1 << 10) #define CM_CTRL_LCDMUXSEL_MASK (7 << 11) #define CM_CTRL_LCDMUXSEL_GENLCD (1 << 11) -#define CM_CTRL_LCDMUXSEL_VGA_16BPP (2 << 11) +#define CM_CTRL_LCDMUXSEL_VGA565_TFT555 (2 << 11) #define CM_CTRL_LCDMUXSEL_SHARPLCD (3 << 11) -#define CM_CTRL_LCDMUXSEL_VGA_8421BPP (4 << 11) +#define CM_CTRL_LCDMUXSEL_VGA555_TFT555 (4 << 11) #define CM_CTRL_LCDEN0 (1 << 14) #define CM_CTRL_LCDEN1 (1 << 15) #define CM_CTRL_STATIC1 (1 << 16) diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h index 5f96e1518aa..ad0ac5547b2 100644 --- a/arch/arm/mach-integrator/common.h +++ b/arch/arm/mach-integrator/common.h @@ -1 +1,8 @@ +#include <linux/reboot.h> +#include <linux/amba/serial.h> +extern struct amba_pl010_data ap_uart_data; +void integrator_init_early(void); +int integrator_init(bool is_cp); void integrator_reserve(void); +void integrator_restart(enum reboot_mode, const char *); +void integrator_init_sysfs(struct device *parent, u32 id); diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c index 8f4fb6d638f..e3f3aca43ef 100644 --- a/arch/arm/mach-integrator/core.c +++ b/arch/arm/mach-integrator/core.c @@ -11,224 +11,192 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/device.h> +#include <linux/export.h> #include <linux/spinlock.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/memblock.h> #include <linux/sched.h> #include <linux/smp.h> -#include <linux/termios.h> #include <linux/amba/bus.h> #include <linux/amba/serial.h> #include <linux/io.h> +#include <linux/stat.h> +#include <linux/of.h> +#include <linux/of_address.h> -#include <asm/clkdev.h> -#include <mach/clkdev.h> -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/irq.h> -#include <mach/cm.h> -#include <asm/system.h> -#include <asm/leds.h> +#include <asm/mach-types.h> #include <asm/mach/time.h> #include <asm/pgtable.h> -static struct amba_pl010_data integrator_uart_data; - -static struct amba_device rtc_device = { - .dev = { - .init_name = "mb:15", - }, - .res = { - .start = INTEGRATOR_RTC_BASE, - .end = INTEGRATOR_RTC_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_RTCINT, NO_IRQ }, - .periphid = 0x00041030, -}; +#include "hardware.h" +#include "cm.h" +#include "common.h" -static struct amba_device uart0_device = { - .dev = { - .init_name = "mb:16", - .platform_data = &integrator_uart_data, - }, - .res = { - .start = INTEGRATOR_UART0_BASE, - .end = INTEGRATOR_UART0_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_UARTINT0, NO_IRQ }, - .periphid = 0x0041010, -}; +static DEFINE_RAW_SPINLOCK(cm_lock); +static void __iomem *cm_base; -static struct amba_device uart1_device = { - .dev = { - .init_name = "mb:17", - .platform_data = &integrator_uart_data, - }, - .res = { - .start = INTEGRATOR_UART1_BASE, - .end = INTEGRATOR_UART1_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_UARTINT1, NO_IRQ }, - .periphid = 0x0041010, -}; +/** + * cm_get - get the value from the CM_CTRL register + */ +u32 cm_get(void) +{ + return readl(cm_base + INTEGRATOR_HDR_CTRL_OFFSET); +} -static struct amba_device kmi0_device = { - .dev = { - .init_name = "mb:18", - }, - .res = { - .start = KMI0_BASE, - .end = KMI0_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_KMIINT0, NO_IRQ }, - .periphid = 0x00041050, -}; +/** + * cm_control - update the CM_CTRL register. + * @mask: bits to change + * @set: bits to set + */ +void cm_control(u32 mask, u32 set) +{ + unsigned long flags; + u32 val; -static struct amba_device kmi1_device = { - .dev = { - .init_name = "mb:19", - }, - .res = { - .start = KMI1_BASE, - .end = KMI1_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_KMIINT1, NO_IRQ }, - .periphid = 0x00041050, -}; + raw_spin_lock_irqsave(&cm_lock, flags); + val = readl(cm_base + INTEGRATOR_HDR_CTRL_OFFSET) & ~mask; + writel(val | set, cm_base + INTEGRATOR_HDR_CTRL_OFFSET); + raw_spin_unlock_irqrestore(&cm_lock, flags); +} -static struct amba_device *amba_devs[] __initdata = { - &rtc_device, - &uart0_device, - &uart1_device, - &kmi0_device, - &kmi1_device, -}; +static const char *integrator_arch_str(u32 id) +{ + switch ((id >> 16) & 0xff) { + case 0x00: + return "ASB little-endian"; + case 0x01: + return "AHB little-endian"; + case 0x03: + return "AHB-Lite system bus, bi-endian"; + case 0x04: + return "AHB"; + case 0x08: + return "AHB system bus, ASB processor bus"; + default: + return "Unknown"; + } +} -/* - * These are fixed clocks. - */ -static struct clk clk24mhz = { - .rate = 24000000, -}; +static const char *integrator_fpga_str(u32 id) +{ + switch ((id >> 12) & 0xf) { + case 0x01: + return "XC4062"; + case 0x02: + return "XC4085"; + case 0x03: + return "XVC600"; + case 0x04: + return "EPM7256AE (Altera PLD)"; + default: + return "Unknown"; + } +} -static struct clk uartclk = { - .rate = 14745600, -}; +void cm_clear_irqs(void) +{ + /* disable core module IRQs */ + writel(0xffffffffU, cm_base + INTEGRATOR_HDR_IC_OFFSET + + IRQ_ENABLE_CLEAR); +} -static struct clk dummy_apb_pclk; - -static struct clk_lookup lookups[] = { - { /* Bus clock */ - .con_id = "apb_pclk", - .clk = &dummy_apb_pclk, - }, { /* UART0 */ - .dev_id = "mb:16", - .clk = &uartclk, - }, { /* UART1 */ - .dev_id = "mb:17", - .clk = &uartclk, - }, { /* KMI0 */ - .dev_id = "mb:18", - .clk = &clk24mhz, - }, { /* KMI1 */ - .dev_id = "mb:19", - .clk = &clk24mhz, - }, { /* MMCI - IntegratorCP */ - .dev_id = "mb:1c", - .clk = &uartclk, - } +static const struct of_device_id cm_match[] = { + { .compatible = "arm,core-module-integrator"}, + { }, }; -static int __init integrator_init(void) +void cm_init(void) { - int i; - - clkdev_add_table(lookups, ARRAY_SIZE(lookups)); + struct device_node *cm = of_find_matching_node(NULL, cm_match); + u32 val; - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); + if (!cm) { + pr_crit("no core module node found in device tree\n"); + return; } - - return 0; + cm_base = of_iomap(cm, 0); + if (!cm_base) { + pr_crit("could not remap core module\n"); + return; + } + cm_clear_irqs(); + val = readl(cm_base + INTEGRATOR_HDR_ID_OFFSET); + pr_info("Detected ARM core module:\n"); + pr_info(" Manufacturer: %02x\n", (val >> 24)); + pr_info(" Architecture: %s\n", integrator_arch_str(val)); + pr_info(" FPGA: %s\n", integrator_fpga_str(val)); + pr_info(" Build: %02x\n", (val >> 4) & 0xFF); + pr_info(" Rev: %c\n", ('A' + (val & 0x03))); } -arch_initcall(integrator_init); - /* - * On the Integrator platform, the port RTS and DTR are provided by - * bits in the following SC_CTRLS register bits: - * RTS DTR - * UART0 7 6 - * UART1 5 4 + * We need to stop things allocating the low memory; ideally we need a + * better implementation of GFP_DMA which does not assume that DMA-able + * memory starts at zero. */ -#define SC_CTRLC IO_ADDRESS(INTEGRATOR_SC_CTRLC) -#define SC_CTRLS IO_ADDRESS(INTEGRATOR_SC_CTRLS) - -static void integrator_uart_set_mctrl(struct amba_device *dev, void __iomem *base, unsigned int mctrl) +void __init integrator_reserve(void) { - unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask; - - if (dev == &uart0_device) { - rts_mask = 1 << 4; - dtr_mask = 1 << 5; - } else { - rts_mask = 1 << 6; - dtr_mask = 1 << 7; - } + memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET); +} - if (mctrl & TIOCM_RTS) - ctrlc |= rts_mask; - else - ctrls |= rts_mask; +/* + * To reset, we hit the on-board reset register in the system FPGA + */ +void integrator_restart(enum reboot_mode mode, const char *cmd) +{ + cm_control(CM_CTRL_RESET, CM_CTRL_RESET); +} - if (mctrl & TIOCM_DTR) - ctrlc |= dtr_mask; - else - ctrls |= dtr_mask; +static u32 integrator_id; - __raw_writel(ctrls, SC_CTRLS); - __raw_writel(ctrlc, SC_CTRLC); +static ssize_t intcp_get_manf(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%02x\n", integrator_id >> 24); } -static struct amba_pl010_data integrator_uart_data = { - .set_mctrl = integrator_uart_set_mctrl, -}; +static struct device_attribute intcp_manf_attr = + __ATTR(manufacturer, S_IRUGO, intcp_get_manf, NULL); -#define CM_CTRL IO_ADDRESS(INTEGRATOR_HDR_CTRL) +static ssize_t intcp_get_arch(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%s\n", integrator_arch_str(integrator_id)); +} -static DEFINE_SPINLOCK(cm_lock); +static struct device_attribute intcp_arch_attr = + __ATTR(architecture, S_IRUGO, intcp_get_arch, NULL); -/** - * cm_control - update the CM_CTRL register. - * @mask: bits to change - * @set: bits to set - */ -void cm_control(u32 mask, u32 set) +static ssize_t intcp_get_fpga(struct device *dev, + struct device_attribute *attr, + char *buf) { - unsigned long flags; - u32 val; + return sprintf(buf, "%s\n", integrator_fpga_str(integrator_id)); +} - spin_lock_irqsave(&cm_lock, flags); - val = readl(CM_CTRL) & ~mask; - writel(val | set, CM_CTRL); - spin_unlock_irqrestore(&cm_lock, flags); +static struct device_attribute intcp_fpga_attr = + __ATTR(fpga, S_IRUGO, intcp_get_fpga, NULL); + +static ssize_t intcp_get_build(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "%02x\n", (integrator_id >> 4) & 0xFF); } -EXPORT_SYMBOL(cm_control); +static struct device_attribute intcp_build_attr = + __ATTR(build, S_IRUGO, intcp_get_build, NULL); -/* - * We need to stop things allocating the low memory; ideally we need a - * better implementation of GFP_DMA which does not assume that DMA-able - * memory starts at zero. - */ -void __init integrator_reserve(void) + + +void integrator_init_sysfs(struct device *parent, u32 id) { - memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET); + integrator_id = id; + device_create_file(parent, &intcp_manf_attr); + device_create_file(parent, &intcp_arch_attr); + device_create_file(parent, &intcp_fpga_attr); + device_create_file(parent, &intcp_build_attr); } diff --git a/arch/arm/mach-integrator/cpu.c b/arch/arm/mach-integrator/cpu.c deleted file mode 100644 index a3fbcb3adc2..00000000000 --- a/arch/arm/mach-integrator/cpu.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * linux/arch/arm/mach-integrator/cpu.c - * - * Copyright (C) 2001-2002 Deep Blue Solutions Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * CPU support functions - */ -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/cpufreq.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/mach-types.h> -#include <asm/hardware/icst.h> - -static struct cpufreq_driver integrator_driver; - -#define CM_ID IO_ADDRESS(INTEGRATOR_HDR_ID) -#define CM_OSC IO_ADDRESS(INTEGRATOR_HDR_OSC) -#define CM_STAT IO_ADDRESS(INTEGRATOR_HDR_STAT) -#define CM_LOCK IO_ADDRESS(INTEGRATOR_HDR_LOCK) - -static const struct icst_params lclk_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 8, - .vd_max = 132, - .rd_min = 24, - .rd_max = 24, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -static const struct icst_params cclk_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 12, - .vd_max = 160, - .rd_min = 24, - .rd_max = 24, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -/* - * Validate the speed policy. - */ -static int integrator_verify_policy(struct cpufreq_policy *policy) -{ - struct icst_vco vco; - - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - vco = icst_hz_to_vco(&cclk_params, policy->max * 1000); - policy->max = icst_hz(&cclk_params, vco) / 1000; - - vco = icst_hz_to_vco(&cclk_params, policy->min * 1000); - policy->min = icst_hz(&cclk_params, vco) / 1000; - - cpufreq_verify_within_limits(policy, - policy->cpuinfo.min_freq, - policy->cpuinfo.max_freq); - - return 0; -} - - -static int integrator_set_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - cpumask_t cpus_allowed; - int cpu = policy->cpu; - struct icst_vco vco; - struct cpufreq_freqs freqs; - u_int cm_osc; - - /* - * Save this threads cpus_allowed mask. - */ - cpus_allowed = current->cpus_allowed; - - /* - * Bind to the specified CPU. When this call returns, - * we should be running on the right CPU. - */ - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(cpu != smp_processor_id()); - - /* get current setting */ - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - vco.s = (cm_osc >> 8) & 7; - } else if (machine_is_cintegrator()) { - vco.s = 1; - } - vco.v = cm_osc & 255; - vco.r = 22; - freqs.old = icst_hz(&cclk_params, vco) / 1000; - - /* icst_hz_to_vco rounds down -- so we need the next - * larger freq in case of CPUFREQ_RELATION_L. - */ - if (relation == CPUFREQ_RELATION_L) - target_freq += 999; - if (target_freq > policy->max) - target_freq = policy->max; - vco = icst_hz_to_vco(&cclk_params, target_freq * 1000); - freqs.new = icst_hz(&cclk_params, vco) / 1000; - - freqs.cpu = policy->cpu; - - if (freqs.old == freqs.new) { - set_cpus_allowed(current, cpus_allowed); - return 0; - } - - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - cm_osc &= 0xfffff800; - cm_osc |= vco.s << 8; - } else if (machine_is_cintegrator()) { - cm_osc &= 0xffffff00; - } - cm_osc |= vco.v; - - __raw_writel(0xa05f, CM_LOCK); - __raw_writel(cm_osc, CM_OSC); - __raw_writel(0, CM_LOCK); - - /* - * Restore the CPUs allowed mask. - */ - set_cpus_allowed(current, cpus_allowed); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - return 0; -} - -static unsigned int integrator_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned int current_freq; - u_int cm_osc; - struct icst_vco vco; - - cpus_allowed = current->cpus_allowed; - - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(cpu != smp_processor_id()); - - /* detect memory etc. */ - cm_osc = __raw_readl(CM_OSC); - - if (machine_is_integrator()) { - vco.s = (cm_osc >> 8) & 7; - } else if (machine_is_cintegrator()) { - vco.s = 1; - } - vco.v = cm_osc & 255; - vco.r = 22; - - current_freq = icst_hz(&cclk_params, vco) / 1000; /* current freq */ - - set_cpus_allowed(current, cpus_allowed); - - return current_freq; -} - -static int integrator_cpufreq_init(struct cpufreq_policy *policy) -{ - - /* set default policy and cpuinfo */ - policy->cpuinfo.max_freq = 160000; - policy->cpuinfo.min_freq = 12000; - policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */ - policy->cur = policy->min = policy->max = integrator_get(policy->cpu); - - return 0; -} - -static struct cpufreq_driver integrator_driver = { - .verify = integrator_verify_policy, - .target = integrator_set_target, - .get = integrator_get, - .init = integrator_cpufreq_init, - .name = "integrator", -}; - -static int __init integrator_cpu_init(void) -{ - return cpufreq_register_driver(&integrator_driver); -} - -static void __exit integrator_cpu_exit(void) -{ - cpufreq_unregister_driver(&integrator_driver); -} - -MODULE_AUTHOR ("Russell M. King"); -MODULE_DESCRIPTION ("cpufreq driver for ARM Integrator CPUs"); -MODULE_LICENSE ("GPL"); - -module_init(integrator_cpu_init); -module_exit(integrator_cpu_exit); diff --git a/arch/arm/mach-integrator/include/mach/platform.h b/arch/arm/mach-integrator/hardware.h index 5e6ea5cfea6..857ca5f8b9a 100644 --- a/arch/arm/mach-integrator/include/mach/platform.h +++ b/arch/arm/mach-integrator/hardware.h @@ -1,4 +1,8 @@ /* + * This file contains the hardware definitions of the Integrator. + * + * Copyright (C) 1998-1999 ARM Limited. + * * 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 @@ -13,29 +17,28 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -/* DO NOT EDIT!! - this file automatically generated - * from .s file by awk -f s2h.awk +#ifndef INTEGRATOR_HARDWARE_H +#define INTEGRATOR_HARDWARE_H + +/* + * Where in virtual memory the IO devices (timers, system controllers + * and so on) */ -/************************************************************************** - * * Copyright © ARM Limited 1998. All rights reserved. - * ***********************************************************************/ -/* ************************************************************************ - * - * Integrator address map - * - * ***********************************************************************/ +#define IO_BASE 0xF0000000 // VA of IO +#define IO_SIZE 0x0B000000 // How much? +#define IO_START INTEGRATOR_HDR_BASE // PA of IO + +/* macro to get at IO space when running virtually */ +#ifdef CONFIG_MMU +#define IO_ADDRESS(x) (((x) & 0x000fffff) | (((x) >> 4) & 0x0ff00000) | IO_BASE) +#else +#define IO_ADDRESS(x) (x) +#endif -#ifndef __address_h -#define __address_h 1 +#define __io_address(n) ((void __iomem *)IO_ADDRESS(n)) -/* ======================================================================== - * Integrator definitions - * ======================================================================== - * ------------------------------------------------------------------------ - * Memory definitions - * ------------------------------------------------------------------------ +/* * Integrator memory map - * */ #define INTEGRATOR_BOOT_ROM_LO 0x00000000 #define INTEGRATOR_BOOT_ROM_HI 0x20000000 @@ -43,13 +46,13 @@ #define INTEGRATOR_BOOT_ROM_SIZE SZ_512K /* - * New Core Modules have different amounts of SSRAM, the amount of SSRAM - * fitted can be found in HDR_STAT. + * New Core Modules have different amounts of SSRAM, the amount of SSRAM + * fitted can be found in HDR_STAT. * - * The symbol INTEGRATOR_SSRAM_SIZE is kept, however this now refers to - * the minimum amount of SSRAM fitted on any core module. + * The symbol INTEGRATOR_SSRAM_SIZE is kept, however this now refers to + * the minimum amount of SSRAM fitted on any core module. * - * New Core Modules also alias the SSRAM. + * New Core Modules also alias the SSRAM. * */ #define INTEGRATOR_SSRAM_BASE 0x00000000 @@ -64,7 +67,6 @@ /* * SDRAM is a SIMM therefore the size is not known. - * */ #define INTEGRATOR_SDRAM_BASE 0x00040000 @@ -84,10 +86,8 @@ #define INTEGRATOR_LOGIC_MODULE2_BASE 0xE0000000 #define INTEGRATOR_LOGIC_MODULE3_BASE 0xF0000000 -/* ------------------------------------------------------------------------ - * Integrator header card registers - * ------------------------------------------------------------------------ - * +/* + * Integrator header card registers */ #define INTEGRATOR_HDR_ID_OFFSET 0x00 #define INTEGRATOR_HDR_PROC_OFFSET 0x04 @@ -176,16 +176,12 @@ #define INTEGRATOR_HDR_SDRAM_SPD_OK (1 << 5) - -/* ------------------------------------------------------------------------ - * Integrator system registers - * ------------------------------------------------------------------------ - * +/* + * Integrator system registers */ /* * System Controller - * */ #define INTEGRATOR_SC_ID_OFFSET 0x00 #define INTEGRATOR_SC_OSC_OFFSET 0x04 @@ -193,7 +189,6 @@ #define INTEGRATOR_SC_CTRLC_OFFSET 0x0C #define INTEGRATOR_SC_DEC_OFFSET 0x10 #define INTEGRATOR_SC_ARB_OFFSET 0x14 -#define INTEGRATOR_SC_PCIENABLE_OFFSET 0x18 #define INTEGRATOR_SC_LOCK_OFFSET 0x1C #define INTEGRATOR_SC_BASE 0x11000000 @@ -227,7 +222,6 @@ /* * External Bus Interface - * */ #define INTEGRATOR_EBI_BASE 0x12000000 @@ -276,7 +270,6 @@ /* * LED's & Switches - * */ #define INTEGRATOR_DBG_ALPHA_OFFSET 0x00 #define INTEGRATOR_DBG_LEDS_OFFSET 0x04 @@ -296,51 +289,25 @@ #define INTEGRATOR_CP_SIC_BASE 0xCA000000 /* SIC */ #define INTEGRATOR_CP_CTL_BASE 0xCB000000 /* CP system control */ -/* ------------------------------------------------------------------------ - * KMI keyboard/mouse definitions - * ------------------------------------------------------------------------ - */ /* PS2 Keyboard interface */ #define KMI0_BASE INTEGRATOR_KBD_BASE /* PS2 Mouse interface */ #define KMI1_BASE INTEGRATOR_MOUSE_BASE -/* KMI definitions are now in include/asm-arm/hardware/amba_kmi.h -- rmk */ - -/* ------------------------------------------------------------------------ - * Where in the memory map does PCI live? - * ------------------------------------------------------------------------ - * This represents a fairly liberal usage of address space. Even though - * the V3 only has two windows (therefore we need to map stuff on the fly), - * we maintain the same addresses, even if they're not mapped. +/* + * Integrator Interrupt Controllers * - */ -#define PHYS_PCI_MEM_BASE 0x40000000 /* 512M to xxx */ -/* unused 256M from A0000000-AFFFFFFF might be used for I2O ??? - */ -#define PHYS_PCI_IO_BASE 0x60000000 /* 16M to xxx */ -/* unused (128-16)M from B1000000-B7FFFFFF - */ -#define PHYS_PCI_CONFIG_BASE 0x61000000 /* 16M to xxx */ -/* unused ((128-16)M - 64K) from XXX - */ -#define PHYS_PCI_V3_BASE 0x62000000 - -/* ------------------------------------------------------------------------ - * Integrator Interrupt Controllers - * ------------------------------------------------------------------------ * - * Offsets from interrupt controller base + * Offsets from interrupt controller base * - * System Controller interrupt controller base is + * System Controller interrupt controller base is * * INTEGRATOR_IC_BASE + (header_number << 6) * - * Core Module interrupt controller base is + * Core Module interrupt controller base is * * INTEGRATOR_HDR_IC - * */ #define IRQ_STATUS 0 #define IRQ_RAW_STATUS 0x04 @@ -358,25 +325,8 @@ #define FIQ_ENABLE_CLEAR 0x2C -/* ------------------------------------------------------------------------ - * Interrupts - * ------------------------------------------------------------------------ - * - * - * Each Core Module has two interrupts controllers, one on the core module - * itself and one in the system controller on the motherboard. The - * READ_INT macro in target.s reads both interrupt controllers and returns - * a 32 bit bitmask, bits 0 to 23 are interrupts from the system controller - * and bits 24 to 31 are from the core module. - * - * The following definitions relate to the bitmask returned by READ_INT. - * - */ - -/* ------------------------------------------------------------------------ - * LED's - * ------------------------------------------------------------------------ - * +/* + * LED's */ #define GREEN_LED 0x01 #define YELLOW_LED 0x02 @@ -394,21 +344,11 @@ * * Timer 0 runs at bus frequency */ - #define INTEGRATOR_TIMER0_BASE INTEGRATOR_CT_BASE #define INTEGRATOR_TIMER1_BASE (INTEGRATOR_CT_BASE + 0x100) #define INTEGRATOR_TIMER2_BASE (INTEGRATOR_CT_BASE + 0x200) -#define TICKS_PER_uSEC 24 - -/* - * These are useconds NOT ticks. - * - */ -#define mSEC_1 1000 -#define mSEC_10 (mSEC_1 * 10) - #define INTEGRATOR_CSR_BASE 0x10000000 #define INTEGRATOR_CSR_SIZE 0x10000000 -#endif +#endif /* INTEGRATOR_HARDWARE_H */ diff --git a/arch/arm/mach-integrator/impd1.c b/arch/arm/mach-integrator/impd1.c index fd684bf205e..3ce880729cf 100644 --- a/arch/arm/mach-integrator/impd1.c +++ b/arch/arm/mach-integrator/impd1.c @@ -21,14 +21,13 @@ #include <linux/amba/bus.h> #include <linux/amba/clcd.h> #include <linux/io.h> +#include <linux/platform_data/clk-integrator.h> #include <linux/slab.h> +#include <linux/irqchip/arm-vic.h> -#include <asm/clkdev.h> -#include <mach/clkdev.h> -#include <asm/hardware/icst.h> -#include <mach/lm.h> -#include <mach/impd1.h> #include <asm/sizes.h> +#include "lm.h" +#include "impd1.h" static int module_id; @@ -37,45 +36,7 @@ MODULE_PARM_DESC(lmid, "logic module stack position"); struct impd1_module { void __iomem *base; - struct clk vcos[2]; - struct clk_lookup *clks[3]; -}; - -static const struct icst_params impd1_vco_params = { - .ref = 24000000, /* 24 MHz */ - .vco_max = ICST525_VCO_MAX_3V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 12, - .vd_max = 519, - .rd_min = 3, - .rd_max = 120, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -static void impd1_setvco(struct clk *clk, struct icst_vco vco) -{ - struct impd1_module *impd1 = clk->data; - u32 val = vco.v | (vco.r << 9) | (vco.s << 16); - - writel(0xa05f, impd1->base + IMPD1_LOCK); - writel(val, clk->vcoreg); - writel(0, impd1->base + IMPD1_LOCK); - -#ifdef DEBUG - vco.v = val & 0x1ff; - vco.r = (val >> 9) & 0x7f; - vco.s = (val >> 16) & 7; - - pr_debug("IM-PD1: VCO%d clock is %ld Hz\n", - vconr, icst525_hz(&impd1_vco_params, vco)); -#endif -} - -static const struct clk_ops impd1_clk_ops = { - .round = icst_clk_round, - .set = icst_clk_set, - .setvco = impd1_setvco, + void __iomem *vic_base; }; void impd1_tweak_control(struct device *dev, u32 mask, u32 val) @@ -122,6 +83,7 @@ static struct clcd_panel vga = { .height = -1, .tim2 = TIM2_BCD | TIM2_IPC, .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), + .caps = CLCD_CAP_5551, .connector = IMPD1_CTRL_DISP_VGA, .bpp = 16, .grayscale = 0, @@ -150,6 +112,7 @@ static struct clcd_panel svga = { .tim2 = TIM2_BCD, .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), .connector = IMPD1_CTRL_DISP_VGA, + .caps = CLCD_CAP_5551, .bpp = 16, .grayscale = 0, }; @@ -176,6 +139,7 @@ static struct clcd_panel prospector = { .height = -1, .tim2 = TIM2_BCD, .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), + .caps = CLCD_CAP_5551, .fixedtimings = 1, .connector = IMPD1_CTRL_DISP_LCD, .bpp = 16, @@ -207,6 +171,7 @@ static struct clcd_panel ltm10c209 = { .height = -1, .tim2 = TIM2_BCD, .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), + .caps = CLCD_CAP_5551, .fixedtimings = 1, .connector = IMPD1_CTRL_DISP_LCD, .bpp = 16, @@ -280,6 +245,7 @@ static void impd1fb_clcd_remove(struct clcd_fb *fb) static struct clcd_board impd1_clcd_data = { .name = "IM-PD/1", + .caps = CLCD_CAP_5551 | CLCD_CAP_888, .check = clcdfb_check, .decode = clcdfb_decode, .disable = impd1fb_clcd_disable, @@ -298,9 +264,6 @@ struct impd1_device { static struct impd1_device impd1_devs[] = { { - .offset = 0x03000000, - .id = 0x00041190, - }, { .offset = 0x00100000, .irq = { 1 }, .id = 0x00141011, @@ -340,93 +303,86 @@ static struct impd1_device impd1_devs[] = { } }; -static struct clk fixed_14745600 = { - .rate = 14745600, -}; +/* + * Valid IRQs: 0 thru 9 and 11, 10 unused. + */ +#define IMPD1_VALID_IRQS 0x00000bffU -static int impd1_probe(struct lm_device *dev) +/* + * As this module is bool, it is OK to have this as __init_refok() - no + * probe calls will be done after the initial system bootup, as devices + * are discovered as part of the machine startup. + */ +static int __init_refok impd1_probe(struct lm_device *dev) { struct impd1_module *impd1; - int i, ret; + int irq_base; + int i; if (dev->id != module_id) return -EINVAL; - if (!request_mem_region(dev->resource.start, SZ_4K, "LM registers")) + if (!devm_request_mem_region(&dev->dev, dev->resource.start, + SZ_4K, "LM registers")) return -EBUSY; - impd1 = kzalloc(sizeof(struct impd1_module), GFP_KERNEL); - if (!impd1) { - ret = -ENOMEM; - goto release_lm; - } + impd1 = devm_kzalloc(&dev->dev, sizeof(struct impd1_module), + GFP_KERNEL); + if (!impd1) + return -ENOMEM; - impd1->base = ioremap(dev->resource.start, SZ_4K); - if (!impd1->base) { - ret = -ENOMEM; - goto free_impd1; - } + impd1->base = devm_ioremap(&dev->dev, dev->resource.start, SZ_4K); + if (!impd1->base) + return -ENOMEM; - lm_set_drvdata(dev, impd1); + integrator_impd1_clk_init(impd1->base, dev->id); + + if (!devm_request_mem_region(&dev->dev, + dev->resource.start + 0x03000000, + SZ_4K, "VIC")) + return -EBUSY; - printk("IM-PD1 found at 0x%08lx\n", - (unsigned long)dev->resource.start); + impd1->vic_base = devm_ioremap(&dev->dev, + dev->resource.start + 0x03000000, + SZ_4K); + if (!impd1->vic_base) + return -ENOMEM; - for (i = 0; i < ARRAY_SIZE(impd1->vcos); i++) { - impd1->vcos[i].ops = &impd1_clk_ops, - impd1->vcos[i].owner = THIS_MODULE, - impd1->vcos[i].params = &impd1_vco_params, - impd1->vcos[i].data = impd1; - } - impd1->vcos[0].vcoreg = impd1->base + IMPD1_OSC1; - impd1->vcos[1].vcoreg = impd1->base + IMPD1_OSC2; - - impd1->clks[0] = clkdev_alloc(&impd1->vcos[0], NULL, "lm%x:01000", - dev->id); - impd1->clks[1] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00100", - dev->id); - impd1->clks[2] = clkdev_alloc(&fixed_14745600, NULL, "lm%x:00200", - dev->id); - for (i = 0; i < ARRAY_SIZE(impd1->clks); i++) - clkdev_add(impd1->clks[i]); + irq_base = vic_init_cascaded(impd1->vic_base, dev->irq, + IMPD1_VALID_IRQS, 0); + + lm_set_drvdata(dev, impd1); + + dev_info(&dev->dev, "IM-PD1 found at 0x%08lx\n", + (unsigned long)dev->resource.start); for (i = 0; i < ARRAY_SIZE(impd1_devs); i++) { struct impd1_device *idev = impd1_devs + i; struct amba_device *d; unsigned long pc_base; + char devname[32]; + int irq1 = idev->irq[0]; + int irq2 = idev->irq[1]; - pc_base = dev->resource.start + idev->offset; + /* Translate IRQs to IM-PD1 local numberspace */ + if (irq1) + irq1 += irq_base; + if (irq2) + irq2 += irq_base; - d = kzalloc(sizeof(struct amba_device), GFP_KERNEL); - if (!d) + pc_base = dev->resource.start + idev->offset; + snprintf(devname, 32, "lm%x:%5.5lx", dev->id, idev->offset >> 12); + d = amba_ahb_device_add_res(&dev->dev, devname, pc_base, SZ_4K, + irq1, irq2, + idev->platform_data, idev->id, + &dev->resource); + if (IS_ERR(d)) { + dev_err(&dev->dev, "unable to register device: %ld\n", PTR_ERR(d)); continue; - - dev_set_name(&d->dev, "lm%x:%5.5lx", dev->id, idev->offset >> 12); - d->dev.parent = &dev->dev; - d->res.start = dev->resource.start + idev->offset; - d->res.end = d->res.start + SZ_4K - 1; - d->res.flags = IORESOURCE_MEM; - d->irq[0] = dev->irq; - d->irq[1] = dev->irq; - d->periphid = idev->id; - d->dev.platform_data = idev->platform_data; - - ret = amba_device_register(d, &dev->resource); - if (ret) { - dev_err(&d->dev, "unable to register device: %d\n", ret); - kfree(d); } } return 0; - - free_impd1: - if (impd1 && impd1->base) - iounmap(impd1->base); - kfree(impd1); - release_lm: - release_mem_region(dev->resource.start, SZ_4K); - return ret; } static int impd1_remove_one(struct device *dev, void *data) @@ -437,24 +393,20 @@ static int impd1_remove_one(struct device *dev, void *data) static void impd1_remove(struct lm_device *dev) { - struct impd1_module *impd1 = lm_get_drvdata(dev); - int i; - device_for_each_child(&dev->dev, NULL, impd1_remove_one); - - for (i = 0; i < ARRAY_SIZE(impd1->clks); i++) - clkdev_drop(impd1->clks[i]); + integrator_impd1_clk_exit(dev->id); lm_set_drvdata(dev, NULL); - - iounmap(impd1->base); - kfree(impd1); - release_mem_region(dev->resource.start, SZ_4K); } static struct lm_driver impd1_driver = { .drv = { .name = "impd1", + /* + * As we're dropping the probe() function, suppress driver + * binding from sysfs. + */ + .suppress_bind_attrs = true, }, .probe = impd1_probe, .remove = impd1_remove, diff --git a/arch/arm/mach-integrator/include/mach/impd1.h b/arch/arm/mach-integrator/impd1.h index d75de4b1423..76de4dc9bee 100644 --- a/arch/arm/mach-integrator/include/mach/impd1.h +++ b/arch/arm/mach-integrator/impd1.h @@ -1,6 +1,3 @@ -#define IMPD1_OSC1 0x00 -#define IMPD1_OSC2 0x04 -#define IMPD1_LOCK 0x08 #define IMPD1_LEDS 0x0c #define IMPD1_INT 0x10 #define IMPD1_SW 0x14 @@ -15,4 +12,3 @@ struct device; void impd1_tweak_control(struct device *dev, u32 mask, u32 val); - diff --git a/arch/arm/mach-integrator/include/mach/bits.h b/arch/arm/mach-integrator/include/mach/bits.h deleted file mode 100644 index 09b024e0496..00000000000 --- a/arch/arm/mach-integrator/include/mach/bits.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -/* DO NOT EDIT!! - this file automatically generated - * from .s file by awk -f s2h.awk - */ -/* Bit field definitions - * Copyright (C) ARM Limited 1998. All rights reserved. - */ - -#ifndef __bits_h -#define __bits_h 1 - -#define BIT0 0x00000001 -#define BIT1 0x00000002 -#define BIT2 0x00000004 -#define BIT3 0x00000008 -#define BIT4 0x00000010 -#define BIT5 0x00000020 -#define BIT6 0x00000040 -#define BIT7 0x00000080 -#define BIT8 0x00000100 -#define BIT9 0x00000200 -#define BIT10 0x00000400 -#define BIT11 0x00000800 -#define BIT12 0x00001000 -#define BIT13 0x00002000 -#define BIT14 0x00004000 -#define BIT15 0x00008000 -#define BIT16 0x00010000 -#define BIT17 0x00020000 -#define BIT18 0x00040000 -#define BIT19 0x00080000 -#define BIT20 0x00100000 -#define BIT21 0x00200000 -#define BIT22 0x00400000 -#define BIT23 0x00800000 -#define BIT24 0x01000000 -#define BIT25 0x02000000 -#define BIT26 0x04000000 -#define BIT27 0x08000000 -#define BIT28 0x10000000 -#define BIT29 0x20000000 -#define BIT30 0x40000000 -#define BIT31 0x80000000 - -#endif - -/* END */ diff --git a/arch/arm/mach-integrator/include/mach/clkdev.h b/arch/arm/mach-integrator/include/mach/clkdev.h deleted file mode 100644 index bfe07679fae..00000000000 --- a/arch/arm/mach-integrator/include/mach/clkdev.h +++ /dev/null @@ -1,26 +0,0 @@ -#ifndef __ASM_MACH_CLKDEV_H -#define __ASM_MACH_CLKDEV_H - -#include <linux/module.h> -#include <plat/clock.h> - -struct clk { - unsigned long rate; - const struct clk_ops *ops; - struct module *owner; - const struct icst_params *params; - void __iomem *vcoreg; - void *data; -}; - -static inline int __clk_get(struct clk *clk) -{ - return try_module_get(clk->owner); -} - -static inline void __clk_put(struct clk *clk) -{ - module_put(clk->owner); -} - -#endif diff --git a/arch/arm/mach-integrator/include/mach/debug-macro.S b/arch/arm/mach-integrator/include/mach/debug-macro.S deleted file mode 100644 index a1f598fd3a5..00000000000 --- a/arch/arm/mach-integrator/include/mach/debug-macro.S +++ /dev/null @@ -1,20 +0,0 @@ -/* arch/arm/mach-integrator/include/mach/debug-macro.S - * - * Debugging macro include header - * - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * 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. - * -*/ - - .macro addruart, rp, rv - mov \rp, #0x16000000 @ physical base address - mov \rv, #0xf0000000 @ virtual base - add \rv, \rv, #0x16000000 >> 4 - .endm - -#include <asm/hardware/debug-pl01x.S> diff --git a/arch/arm/mach-integrator/include/mach/entry-macro.S b/arch/arm/mach-integrator/include/mach/entry-macro.S deleted file mode 100644 index 3d029c9f3ef..00000000000 --- a/arch/arm/mach-integrator/include/mach/entry-macro.S +++ /dev/null @@ -1,45 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/entry-macro.S - * - * Low-level IRQ helper macros for Integrator platforms - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ -#include <mach/hardware.h> -#include <mach/platform.h> -#include <mach/irqs.h> - - .macro disable_fiq - .endm - - .macro get_irqnr_preamble, base, tmp - .endm - - .macro arch_ret_to_user, tmp1, tmp2 - .endm - - .macro get_irqnr_and_base, irqnr, irqstat, base, tmp -/* FIXME: should not be using soo many LDRs here */ - ldr \base, =IO_ADDRESS(INTEGRATOR_IC_BASE) - mov \irqnr, #IRQ_PIC_START - ldr \irqstat, [\base, #IRQ_STATUS] @ get masked status - ldr \base, =IO_ADDRESS(INTEGRATOR_HDR_BASE) - teq \irqstat, #0 - ldreq \irqstat, [\base, #(INTEGRATOR_HDR_IC_OFFSET+IRQ_STATUS)] - moveq \irqnr, #IRQ_CIC_START - -1001: tst \irqstat, #15 - bne 1002f - add \irqnr, \irqnr, #4 - movs \irqstat, \irqstat, lsr #4 - bne 1001b -1002: tst \irqstat, #1 - bne 1003f - add \irqnr, \irqnr, #1 - movs \irqstat, \irqstat, lsr #1 - bne 1002b -1003: /* EQ will be set if no irqs pending */ - .endm - diff --git a/arch/arm/mach-integrator/include/mach/hardware.h b/arch/arm/mach-integrator/include/mach/hardware.h deleted file mode 100644 index 57f51ba1125..00000000000 --- a/arch/arm/mach-integrator/include/mach/hardware.h +++ /dev/null @@ -1,52 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/hardware.h - * - * This file contains the hardware definitions of the Integrator. - * - * Copyright (C) 1999 ARM Limited. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H - -#include <asm/sizes.h> - -/* - * Where in virtual memory the IO devices (timers, system controllers - * and so on) - */ -#define IO_BASE 0xF0000000 // VA of IO -#define IO_SIZE 0x0B000000 // How much? -#define IO_START INTEGRATOR_HDR_BASE // PA of IO - -#define PCIMEM_BASE PCI_MEMORY_VADDR - -#define pcibios_assign_all_busses() 1 - -#define PCIBIOS_MIN_IO 0x6000 -#define PCIBIOS_MIN_MEM 0x00100000 - -/* macro to get at IO space when running virtually */ -#ifdef CONFIG_MMU -#define IO_ADDRESS(x) (((x) & 0x000fffff) | (((x) >> 4) & 0x0ff00000) | IO_BASE) -#else -#define IO_ADDRESS(x) (x) -#endif - -#define __io_address(n) ((void __iomem *)IO_ADDRESS(n)) - -#endif - diff --git a/arch/arm/mach-integrator/include/mach/io.h b/arch/arm/mach-integrator/include/mach/io.h deleted file mode 100644 index f21bb5493dd..00000000000 --- a/arch/arm/mach-integrator/include/mach/io.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/io.h - * - * Copyright (C) 1999 ARM Limited - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffff - -/* - * WARNING: this has to mirror definitions in platform.h - */ -#define PCI_MEMORY_VADDR 0xe8000000 -#define PCI_CONFIG_VADDR 0xec000000 -#define PCI_V3_VADDR 0xed000000 -#define PCI_IO_VADDR 0xee000000 - -#define __io(a) ((void __iomem *)(PCI_IO_VADDR + (a))) -#define __mem_pci(a) (a) - -#endif diff --git a/arch/arm/mach-integrator/include/mach/irqs.h b/arch/arm/mach-integrator/include/mach/irqs.h deleted file mode 100644 index 1fbe6d19022..00000000000 --- a/arch/arm/mach-integrator/include/mach/irqs.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/irqs.h - * - * Copyright (C) 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* - * Interrupt numbers - */ -#define IRQ_PIC_START 0 -#define IRQ_SOFTINT 0 -#define IRQ_UARTINT0 1 -#define IRQ_UARTINT1 2 -#define IRQ_KMIINT0 3 -#define IRQ_KMIINT1 4 -#define IRQ_TIMERINT0 5 -#define IRQ_TIMERINT1 6 -#define IRQ_TIMERINT2 7 -#define IRQ_RTCINT 8 -#define IRQ_AP_EXPINT0 9 -#define IRQ_AP_EXPINT1 10 -#define IRQ_AP_EXPINT2 11 -#define IRQ_AP_EXPINT3 12 -#define IRQ_AP_PCIINT0 13 -#define IRQ_AP_PCIINT1 14 -#define IRQ_AP_PCIINT2 15 -#define IRQ_AP_PCIINT3 16 -#define IRQ_AP_V3INT 17 -#define IRQ_AP_CPINT0 18 -#define IRQ_AP_CPINT1 19 -#define IRQ_AP_LBUSTIMEOUT 20 -#define IRQ_AP_APCINT 21 -#define IRQ_CP_CLCDCINT 22 -#define IRQ_CP_MMCIINT0 23 -#define IRQ_CP_MMCIINT1 24 -#define IRQ_CP_AACIINT 25 -#define IRQ_CP_CPPLDINT 26 -#define IRQ_CP_ETHINT 27 -#define IRQ_CP_TSPENINT 28 -#define IRQ_PIC_END 31 - -#define IRQ_CIC_START 32 -#define IRQ_CM_SOFTINT 32 -#define IRQ_CM_COMMRX 33 -#define IRQ_CM_COMMTX 34 -#define IRQ_CIC_END 34 - -/* - * IntegratorCP only - */ -#define IRQ_SIC_START 35 -#define IRQ_SIC_CP_SOFTINT 35 -#define IRQ_SIC_CP_RI0 36 -#define IRQ_SIC_CP_RI1 37 -#define IRQ_SIC_CP_CARDIN 38 -#define IRQ_SIC_CP_LMINT0 39 -#define IRQ_SIC_CP_LMINT1 40 -#define IRQ_SIC_CP_LMINT2 41 -#define IRQ_SIC_CP_LMINT3 42 -#define IRQ_SIC_CP_LMINT4 43 -#define IRQ_SIC_CP_LMINT5 44 -#define IRQ_SIC_CP_LMINT6 45 -#define IRQ_SIC_CP_LMINT7 46 -#define IRQ_SIC_END 46 - -#define NR_IRQS 47 - diff --git a/arch/arm/mach-integrator/include/mach/memory.h b/arch/arm/mach-integrator/include/mach/memory.h index 991f24d2c11..334d5e27188 100644 --- a/arch/arm/mach-integrator/include/mach/memory.h +++ b/arch/arm/mach-integrator/include/mach/memory.h @@ -23,7 +23,7 @@ /* * Physical DRAM offset. */ -#define PHYS_OFFSET UL(0x00000000) +#define PLAT_PHYS_OFFSET UL(0x00000000) #define BUS_OFFSET UL(0x80000000) #define __virt_to_bus(x) ((x) - PAGE_OFFSET + BUS_OFFSET) diff --git a/arch/arm/mach-integrator/include/mach/system.h b/arch/arm/mach-integrator/include/mach/system.h deleted file mode 100644 index e1551b8dab7..00000000000 --- a/arch/arm/mach-integrator/include/mach/system.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/system.h - * - * Copyright (C) 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#ifndef __ASM_ARCH_SYSTEM_H -#define __ASM_ARCH_SYSTEM_H - -#include <mach/cm.h> - -static inline void arch_idle(void) -{ - /* - * This should do all the clock switching - * and wait for interrupt tricks - */ - cpu_do_idle(); -} - -static inline void arch_reset(char mode, const char *cmd) -{ - /* - * To reset, we hit the on-board reset register - * in the system FPGA - */ - cm_control(CM_CTRL_RESET, CM_CTRL_RESET); -} - -#endif diff --git a/arch/arm/mach-integrator/include/mach/timex.h b/arch/arm/mach-integrator/include/mach/timex.h deleted file mode 100644 index 1dcb42028c8..00000000000 --- a/arch/arm/mach-integrator/include/mach/timex.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/timex.h - * - * Integrator architecture timex specifications - * - * Copyright (C) 1999 ARM Limited - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* - * ?? - */ -#define CLOCK_TICK_RATE (50000000 / 16) diff --git a/arch/arm/mach-integrator/include/mach/uncompress.h b/arch/arm/mach-integrator/include/mach/uncompress.h index 30452f00a16..8f3cc9954c1 100644 --- a/arch/arm/mach-integrator/include/mach/uncompress.h +++ b/arch/arm/mach-integrator/include/mach/uncompress.h @@ -46,5 +46,3 @@ static inline void flush(void) * nothing to do */ #define arch_decomp_setup() - -#define arch_decomp_wdog() diff --git a/arch/arm/mach-integrator/include/mach/vmalloc.h b/arch/arm/mach-integrator/include/mach/vmalloc.h deleted file mode 100644 index e056e7cf564..00000000000 --- a/arch/arm/mach-integrator/include/mach/vmalloc.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * arch/arm/mach-integrator/include/mach/vmalloc.h - * - * Copyright (C) 2000 Russell King. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#define VMALLOC_END 0xd0000000 diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index 548208f1117..660ca6feff4 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -24,54 +24,61 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/amba/bus.h> #include <linux/amba/kmi.h> #include <linux/clocksource.h> #include <linux/clockchips.h> #include <linux/interrupt.h> #include <linux/io.h> +#include <linux/irqchip/versatile-fpga.h> +#include <linux/mtd/physmap.h> +#include <linux/clk.h> +#include <linux/platform_data/clk-integrator.h> +#include <linux/of_irq.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/stat.h> +#include <linux/sys_soc.h> +#include <linux/termios.h> +#include <linux/sched_clock.h> +#include <linux/clk-provider.h> -#include <mach/hardware.h> -#include <mach/platform.h> #include <asm/hardware/arm_timer.h> -#include <asm/irq.h> #include <asm/setup.h> #include <asm/param.h> /* HZ */ #include <asm/mach-types.h> -#include <mach/lm.h> - #include <asm/mach/arch.h> -#include <asm/mach/flash.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> #include <asm/mach/time.h> +#include "hardware.h" +#include "cm.h" #include "common.h" +#include "pci_v3.h" +#include "lm.h" + +/* Base address to the AP system controller */ +void __iomem *ap_syscon_base; +/* Base address to the external bus interface */ +static void __iomem *ebi_base; + -/* +/* * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx * is the (PA >> 12). * * Setup a VA for the Integrator interrupt controller (for header #0, * just for now). */ -#define VA_IC_BASE IO_ADDRESS(INTEGRATOR_IC_BASE) -#define VA_SC_BASE IO_ADDRESS(INTEGRATOR_SC_BASE) -#define VA_EBI_BASE IO_ADDRESS(INTEGRATOR_EBI_BASE) -#define VA_CMIC_BASE IO_ADDRESS(INTEGRATOR_HDR_IC) +#define VA_IC_BASE __io_address(INTEGRATOR_IC_BASE) /* * Logical Physical - * e8000000 40000000 PCI memory PHYS_PCI_MEM_BASE (max 512M) - * ec000000 61000000 PCI config space PHYS_PCI_CONFIG_BASE (max 16M) - * ed000000 62000000 PCI V3 regs PHYS_PCI_V3_BASE (max 64k) - * ee000000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M) * ef000000 Cache flush - * f1000000 10000000 Core module registers * f1100000 11000000 System controller registers - * f1200000 12000000 EBI registers * f1300000 13000000 Counter/Timer * f1400000 14000000 Interrupt controller * f1600000 16000000 UART 0 @@ -80,23 +87,8 @@ * f1b00000 1b000000 GPIO */ -static struct map_desc ap_io_desc[] __initdata = { +static struct map_desc ap_io_desc[] __initdata __maybe_unused = { { - .virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_SC_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_SC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_EBI_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_EBI_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { .virtual = IO_ADDRESS(INTEGRATOR_CT_BASE), .pfn = __phys_to_pfn(INTEGRATOR_CT_BASE), .length = SZ_4K, @@ -112,11 +104,6 @@ static struct map_desc ap_io_desc[] __initdata = { .length = SZ_4K, .type = MT_DEVICE }, { - .virtual = IO_ADDRESS(INTEGRATOR_UART1_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_UART1_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { .virtual = IO_ADDRESS(INTEGRATOR_DBG_BASE), .pfn = __phys_to_pfn(INTEGRATOR_DBG_BASE), .length = SZ_4K, @@ -126,275 +113,184 @@ static struct map_desc ap_io_desc[] __initdata = { .pfn = __phys_to_pfn(INTEGRATOR_AP_GPIO_BASE), .length = SZ_4K, .type = MT_DEVICE - }, { - .virtual = PCI_MEMORY_VADDR, - .pfn = __phys_to_pfn(PHYS_PCI_MEM_BASE), - .length = SZ_16M, - .type = MT_DEVICE - }, { - .virtual = PCI_CONFIG_VADDR, - .pfn = __phys_to_pfn(PHYS_PCI_CONFIG_BASE), - .length = SZ_16M, - .type = MT_DEVICE - }, { - .virtual = PCI_V3_VADDR, - .pfn = __phys_to_pfn(PHYS_PCI_V3_BASE), - .length = SZ_64K, - .type = MT_DEVICE - }, { - .virtual = PCI_IO_VADDR, - .pfn = __phys_to_pfn(PHYS_PCI_IO_BASE), - .length = SZ_64K, - .type = MT_DEVICE } }; static void __init ap_map_io(void) { iotable_init(ap_io_desc, ARRAY_SIZE(ap_io_desc)); -} - -#define INTEGRATOR_SC_VALID_INT 0x003fffff - -static void sc_mask_irq(unsigned int irq) -{ - writel(1 << irq, VA_IC_BASE + IRQ_ENABLE_CLEAR); -} - -static void sc_unmask_irq(unsigned int irq) -{ - writel(1 << irq, VA_IC_BASE + IRQ_ENABLE_SET); -} - -static struct irq_chip sc_chip = { - .name = "SC", - .ack = sc_mask_irq, - .mask = sc_mask_irq, - .unmask = sc_unmask_irq, -}; - -static void __init ap_init_irq(void) -{ - unsigned int i; - - /* Disable all interrupts initially. */ - /* Do the core module ones */ - writel(-1, VA_CMIC_BASE + IRQ_ENABLE_CLEAR); - - /* do the header card stuff next */ - writel(-1, VA_IC_BASE + IRQ_ENABLE_CLEAR); - writel(-1, VA_IC_BASE + FIQ_ENABLE_CLEAR); - - for (i = 0; i < NR_IRQS; i++) { - if (((1 << i) & INTEGRATOR_SC_VALID_INT) != 0) { - set_irq_chip(i, &sc_chip); - set_irq_handler(i, handle_level_irq); - set_irq_flags(i, IRQF_VALID | IRQF_PROBE); - } - } + pci_v3_early_init(); } #ifdef CONFIG_PM static unsigned long ic_irq_enable; -static int irq_suspend(struct sys_device *dev, pm_message_t state) +static int irq_suspend(void) { ic_irq_enable = readl(VA_IC_BASE + IRQ_ENABLE); return 0; } -static int irq_resume(struct sys_device *dev) +static void irq_resume(void) { /* disable all irq sources */ - writel(-1, VA_CMIC_BASE + IRQ_ENABLE_CLEAR); + cm_clear_irqs(); writel(-1, VA_IC_BASE + IRQ_ENABLE_CLEAR); writel(-1, VA_IC_BASE + FIQ_ENABLE_CLEAR); writel(ic_irq_enable, VA_IC_BASE + IRQ_ENABLE_SET); - return 0; } #else #define irq_suspend NULL #define irq_resume NULL #endif -static struct sysdev_class irq_class = { - .name = "irq", +static struct syscore_ops irq_syscore_ops = { .suspend = irq_suspend, .resume = irq_resume, }; -static struct sys_device irq_device = { - .id = 0, - .cls = &irq_class, -}; - -static int __init irq_init_sysfs(void) +static int __init irq_syscore_init(void) { - int ret = sysdev_class_register(&irq_class); - if (ret == 0) - ret = sysdev_register(&irq_device); - return ret; + register_syscore_ops(&irq_syscore_ops); + + return 0; } -device_initcall(irq_init_sysfs); +device_initcall(irq_syscore_init); /* * Flash handling. */ -#define SC_CTRLC (VA_SC_BASE + INTEGRATOR_SC_CTRLC_OFFSET) -#define SC_CTRLS (VA_SC_BASE + INTEGRATOR_SC_CTRLS_OFFSET) -#define EBI_CSR1 (VA_EBI_BASE + INTEGRATOR_EBI_CSR1_OFFSET) -#define EBI_LOCK (VA_EBI_BASE + INTEGRATOR_EBI_LOCK_OFFSET) - -static int ap_flash_init(void) +static int ap_flash_init(struct platform_device *dev) { u32 tmp; - writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC); + writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, + ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET); - tmp = readl(EBI_CSR1) | INTEGRATOR_EBI_WRITE_ENABLE; - writel(tmp, EBI_CSR1); + tmp = readl(ebi_base + INTEGRATOR_EBI_CSR1_OFFSET) | + INTEGRATOR_EBI_WRITE_ENABLE; + writel(tmp, ebi_base + INTEGRATOR_EBI_CSR1_OFFSET); - if (!(readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE)) { - writel(0xa05f, EBI_LOCK); - writel(tmp, EBI_CSR1); - writel(0, EBI_LOCK); + if (!(readl(ebi_base + INTEGRATOR_EBI_CSR1_OFFSET) + & INTEGRATOR_EBI_WRITE_ENABLE)) { + writel(0xa05f, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET); + writel(tmp, ebi_base + INTEGRATOR_EBI_CSR1_OFFSET); + writel(0, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET); } return 0; } -static void ap_flash_exit(void) +static void ap_flash_exit(struct platform_device *dev) { u32 tmp; - writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, SC_CTRLC); + writel(INTEGRATOR_SC_CTRL_nFLVPPEN | INTEGRATOR_SC_CTRL_nFLWP, + ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET); - tmp = readl(EBI_CSR1) & ~INTEGRATOR_EBI_WRITE_ENABLE; - writel(tmp, EBI_CSR1); + tmp = readl(ebi_base + INTEGRATOR_EBI_CSR1_OFFSET) & + ~INTEGRATOR_EBI_WRITE_ENABLE; + writel(tmp, ebi_base + INTEGRATOR_EBI_CSR1_OFFSET); - if (readl(EBI_CSR1) & INTEGRATOR_EBI_WRITE_ENABLE) { - writel(0xa05f, EBI_LOCK); - writel(tmp, EBI_CSR1); - writel(0, EBI_LOCK); + if (readl(ebi_base + INTEGRATOR_EBI_CSR1_OFFSET) & + INTEGRATOR_EBI_WRITE_ENABLE) { + writel(0xa05f, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET); + writel(tmp, ebi_base + INTEGRATOR_EBI_CSR1_OFFSET); + writel(0, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET); } } -static void ap_flash_set_vpp(int on) +static void ap_flash_set_vpp(struct platform_device *pdev, int on) { - unsigned long reg = on ? SC_CTRLS : SC_CTRLC; - - writel(INTEGRATOR_SC_CTRL_nFLVPPEN, reg); + if (on) + writel(INTEGRATOR_SC_CTRL_nFLVPPEN, + ap_syscon_base + INTEGRATOR_SC_CTRLS_OFFSET); + else + writel(INTEGRATOR_SC_CTRL_nFLVPPEN, + ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET); } -static struct flash_platform_data ap_flash_data = { - .map_name = "cfi_probe", +static struct physmap_flash_data ap_flash_data = { .width = 4, .init = ap_flash_init, .exit = ap_flash_exit, .set_vpp = ap_flash_set_vpp, }; -static struct resource cfi_flash_resource = { - .start = INTEGRATOR_FLASH_BASE, - .end = INTEGRATOR_FLASH_BASE + INTEGRATOR_FLASH_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device cfi_flash_device = { - .name = "armflash", - .id = 0, - .dev = { - .platform_data = &ap_flash_data, - }, - .num_resources = 1, - .resource = &cfi_flash_resource, -}; - -static void __init ap_init(void) +/* + * For the PL010 found in the Integrator/AP some of the UART control is + * implemented in the system controller and accessed using a callback + * from the driver. + */ +static void integrator_uart_set_mctrl(struct amba_device *dev, + void __iomem *base, unsigned int mctrl) { - unsigned long sc_dec; - int i; - - platform_device_register(&cfi_flash_device); - - sc_dec = readl(VA_SC_BASE + INTEGRATOR_SC_DEC_OFFSET); - for (i = 0; i < 4; i++) { - struct lm_device *lmdev; - - if ((sc_dec & (16 << i)) == 0) - continue; + unsigned int ctrls = 0, ctrlc = 0, rts_mask, dtr_mask; + u32 phybase = dev->res.start; + + if (phybase == INTEGRATOR_UART0_BASE) { + /* UART0 */ + rts_mask = 1 << 4; + dtr_mask = 1 << 5; + } else { + /* UART1 */ + rts_mask = 1 << 6; + dtr_mask = 1 << 7; + } - lmdev = kzalloc(sizeof(struct lm_device), GFP_KERNEL); - if (!lmdev) - continue; + if (mctrl & TIOCM_RTS) + ctrlc |= rts_mask; + else + ctrls |= rts_mask; - lmdev->resource.start = 0xc0000000 + 0x10000000 * i; - lmdev->resource.end = lmdev->resource.start + 0x0fffffff; - lmdev->resource.flags = IORESOURCE_MEM; - lmdev->irq = IRQ_AP_EXPINT0 + i; - lmdev->id = i; + if (mctrl & TIOCM_DTR) + ctrlc |= dtr_mask; + else + ctrls |= dtr_mask; - lm_device_register(lmdev); - } + __raw_writel(ctrls, ap_syscon_base + INTEGRATOR_SC_CTRLS_OFFSET); + __raw_writel(ctrlc, ap_syscon_base + INTEGRATOR_SC_CTRLC_OFFSET); } -/* - * Where is the timer (VA)? - */ -#define TIMER0_VA_BASE IO_ADDRESS(INTEGRATOR_TIMER0_BASE) -#define TIMER1_VA_BASE IO_ADDRESS(INTEGRATOR_TIMER1_BASE) -#define TIMER2_VA_BASE IO_ADDRESS(INTEGRATOR_TIMER2_BASE) +struct amba_pl010_data ap_uart_data = { + .set_mctrl = integrator_uart_set_mctrl, +}; /* - * How long is the timer interval? + * Where is the timer (VA)? */ -#define TIMER_INTERVAL (TICKS_PER_uSEC * mSEC_10) -#if TIMER_INTERVAL >= 0x100000 -#define TICKS2USECS(x) (256 * (x) / TICKS_PER_uSEC) -#elif TIMER_INTERVAL >= 0x10000 -#define TICKS2USECS(x) (16 * (x) / TICKS_PER_uSEC) -#else -#define TICKS2USECS(x) ((x) / TICKS_PER_uSEC) -#endif +#define TIMER0_VA_BASE __io_address(INTEGRATOR_TIMER0_BASE) +#define TIMER1_VA_BASE __io_address(INTEGRATOR_TIMER1_BASE) +#define TIMER2_VA_BASE __io_address(INTEGRATOR_TIMER2_BASE) static unsigned long timer_reload; -static void __iomem * const clksrc_base = (void __iomem *)TIMER2_VA_BASE; - -static cycle_t timersp_read(struct clocksource *cs) +static u64 notrace integrator_read_sched_clock(void) { - return ~(readl(clksrc_base + TIMER_VALUE) & 0xffff); + return -readl((void __iomem *) TIMER2_VA_BASE + TIMER_VALUE); } -static struct clocksource clocksource_timersp = { - .name = "timer2", - .rating = 200, - .read = timersp_read, - .mask = CLOCKSOURCE_MASK(16), - .shift = 16, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static void integrator_clocksource_init(u32 khz) +static void integrator_clocksource_init(unsigned long inrate, + void __iomem *base) { - struct clocksource *cs = &clocksource_timersp; - void __iomem *base = clksrc_base; - u32 ctrl = TIMER_CTRL_ENABLE; + u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC; + unsigned long rate = inrate; - if (khz >= 1500) { - khz /= 16; - ctrl = TIMER_CTRL_DIV16; + if (rate >= 1500000) { + rate /= 16; + ctrl |= TIMER_CTRL_DIV16; } - writel(ctrl, base + TIMER_CTRL); writel(0xffff, base + TIMER_LOAD); + writel(ctrl, base + TIMER_CTRL); - cs->mult = clocksource_khz2mult(khz, cs->shift); - clocksource_register(cs); + clocksource_mmio_init(base + TIMER_VALUE, "timer2", + rate, 200, 16, clocksource_mmio_readl_down); + sched_clock_register(integrator_read_sched_clock, 16, rate); } -static void __iomem * const clkevt_base = (void __iomem *)TIMER1_VA_BASE; +static void __iomem * clkevt_base; /* * IRQ handler for the timer @@ -415,15 +311,29 @@ static void clkevt_set_mode(enum clock_event_mode mode, struct clock_event_devic { u32 ctrl = readl(clkevt_base + TIMER_CTRL) & ~TIMER_CTRL_ENABLE; - BUG_ON(mode == CLOCK_EVT_MODE_ONESHOT); + /* Disable timer */ + writel(ctrl, clkevt_base + TIMER_CTRL); - if (mode == CLOCK_EVT_MODE_PERIODIC) { - writel(ctrl, clkevt_base + TIMER_CTRL); + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + /* Enable the timer and start the periodic tick */ writel(timer_reload, clkevt_base + TIMER_LOAD); ctrl |= TIMER_CTRL_PERIODIC | TIMER_CTRL_ENABLE; + writel(ctrl, clkevt_base + TIMER_CTRL); + break; + case CLOCK_EVT_MODE_ONESHOT: + /* Leave the timer disabled, .set_next_event will enable it */ + ctrl &= ~TIMER_CTRL_PERIODIC; + writel(ctrl, clkevt_base + TIMER_CTRL); + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + case CLOCK_EVT_MODE_RESUME: + default: + /* Just leave in disabled state */ + break; } - writel(ctrl, clkevt_base + TIMER_CTRL); } static int clkevt_set_next_event(unsigned long next, struct clock_event_device *evt) @@ -439,71 +349,218 @@ static int clkevt_set_next_event(unsigned long next, struct clock_event_device * static struct clock_event_device integrator_clockevent = { .name = "timer1", - .shift = 34, - .features = CLOCK_EVT_FEAT_PERIODIC, + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_mode = clkevt_set_mode, .set_next_event = clkevt_set_next_event, .rating = 300, - .cpumask = cpu_all_mask, }; static struct irqaction integrator_timer_irq = { .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .flags = IRQF_TIMER | IRQF_IRQPOLL, .handler = integrator_timer_interrupt, .dev_id = &integrator_clockevent, }; -static void integrator_clockevent_init(u32 khz) +static void integrator_clockevent_init(unsigned long inrate, + void __iomem *base, int irq) { - struct clock_event_device *evt = &integrator_clockevent; + unsigned long rate = inrate; unsigned int ctrl = 0; - if (khz * 1000 > 0x100000 * HZ) { - khz /= 256; + clkevt_base = base; + /* Calculate and program a divisor */ + if (rate > 0x100000 * HZ) { + rate /= 256; ctrl |= TIMER_CTRL_DIV256; - } else if (khz * 1000 > 0x10000 * HZ) { - khz /= 16; + } else if (rate > 0x10000 * HZ) { + rate /= 16; ctrl |= TIMER_CTRL_DIV16; } - - timer_reload = khz * 1000 / HZ; + timer_reload = rate / HZ; writel(ctrl, clkevt_base + TIMER_CTRL); - evt->irq = IRQ_TIMERINT1; - evt->mult = div_sc(khz, NSEC_PER_MSEC, evt->shift); - evt->max_delta_ns = clockevent_delta2ns(0xffff, evt); - evt->min_delta_ns = clockevent_delta2ns(0xf, evt); + setup_irq(irq, &integrator_timer_irq); + clockevents_config_and_register(&integrator_clockevent, + rate, + 1, + 0xffffU); +} - setup_irq(IRQ_TIMERINT1, &integrator_timer_irq); - clockevents_register_device(evt); +void __init ap_init_early(void) +{ } -/* - * Set up timer(s). - */ -static void __init ap_init_timer(void) +static void __init ap_of_timer_init(void) { - u32 khz = TICKS_PER_uSEC * 1000; + struct device_node *node; + const char *path; + void __iomem *base; + int err; + int irq; + struct clk *clk; + unsigned long rate; + + of_clk_init(NULL); + + err = of_property_read_string(of_aliases, + "arm,timer-primary", &path); + if (WARN_ON(err)) + return; + node = of_find_node_by_path(path); + base = of_iomap(node, 0); + if (WARN_ON(!base)) + return; + + clk = of_clk_get(node, 0); + BUG_ON(IS_ERR(clk)); + clk_prepare_enable(clk); + rate = clk_get_rate(clk); + + writel(0, base + TIMER_CTRL); + integrator_clocksource_init(rate, base); + + err = of_property_read_string(of_aliases, + "arm,timer-secondary", &path); + if (WARN_ON(err)) + return; + node = of_find_node_by_path(path); + base = of_iomap(node, 0); + if (WARN_ON(!base)) + return; + irq = irq_of_parse_and_map(node, 0); + + clk = of_clk_get(node, 0); + BUG_ON(IS_ERR(clk)); + clk_prepare_enable(clk); + rate = clk_get_rate(clk); + + writel(0, base + TIMER_CTRL); + integrator_clockevent_init(rate, base, irq); +} - writel(0, TIMER0_VA_BASE + TIMER_CTRL); - writel(0, TIMER1_VA_BASE + TIMER_CTRL); - writel(0, TIMER2_VA_BASE + TIMER_CTRL); +static const struct of_device_id fpga_irq_of_match[] __initconst = { + { .compatible = "arm,versatile-fpga-irq", .data = fpga_irq_of_init, }, + { /* Sentinel */ } +}; - integrator_clocksource_init(khz); - integrator_clockevent_init(khz); +static void __init ap_init_irq_of(void) +{ + cm_init(); + of_irq_init(fpga_irq_of_match); } -static struct sys_timer ap_timer = { - .init = ap_init_timer, +/* For the Device Tree, add in the UART callbacks as AUXDATA */ +static struct of_dev_auxdata ap_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE, + "rtc", NULL), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE, + "uart0", &ap_uart_data), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE, + "uart1", &ap_uart_data), + OF_DEV_AUXDATA("arm,primecell", KMI0_BASE, + "kmi0", NULL), + OF_DEV_AUXDATA("arm,primecell", KMI1_BASE, + "kmi1", NULL), + OF_DEV_AUXDATA("cfi-flash", INTEGRATOR_FLASH_BASE, + "physmap-flash", &ap_flash_data), + { /* sentinel */ }, }; -MACHINE_START(INTEGRATOR, "ARM-Integrator") - /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ - .boot_params = 0x00000100, - .map_io = ap_map_io, +static const struct of_device_id ap_syscon_match[] = { + { .compatible = "arm,integrator-ap-syscon"}, + { }, +}; + +static const struct of_device_id ebi_match[] = { + { .compatible = "arm,external-bus-interface"}, + { }, +}; + +static void __init ap_init_of(void) +{ + unsigned long sc_dec; + struct device_node *syscon; + struct device_node *ebi; + struct device *parent; + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + u32 ap_sc_id; + int i; + + syscon = of_find_matching_node(NULL, ap_syscon_match); + if (!syscon) + return; + ebi = of_find_matching_node(NULL, ebi_match); + if (!ebi) + return; + + ap_syscon_base = of_iomap(syscon, 0); + if (!ap_syscon_base) + return; + ebi_base = of_iomap(ebi, 0); + if (!ebi_base) + return; + + of_platform_populate(NULL, of_default_bus_match_table, + ap_auxdata_lookup, NULL); + + ap_sc_id = readl(ap_syscon_base); + + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) + return; + + soc_dev_attr->soc_id = "XVC"; + soc_dev_attr->machine = "Integrator/AP"; + soc_dev_attr->family = "Integrator"; + soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c", + 'A' + (ap_sc_id & 0x0f)); + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr->revision); + kfree(soc_dev_attr); + return; + } + + parent = soc_device_to_device(soc_dev); + integrator_init_sysfs(parent, ap_sc_id); + + sc_dec = readl(ap_syscon_base + INTEGRATOR_SC_DEC_OFFSET); + for (i = 0; i < 4; i++) { + struct lm_device *lmdev; + + if ((sc_dec & (16 << i)) == 0) + continue; + + lmdev = kzalloc(sizeof(struct lm_device), GFP_KERNEL); + if (!lmdev) + continue; + + lmdev->resource.start = 0xc0000000 + 0x10000000 * i; + lmdev->resource.end = lmdev->resource.start + 0x0fffffff; + lmdev->resource.flags = IORESOURCE_MEM; + lmdev->irq = irq_of_parse_and_map(syscon, i); + lmdev->id = i; + + lm_device_register(lmdev); + } +} + +static const char * ap_dt_board_compat[] = { + "arm,integrator-ap", + NULL, +}; + +DT_MACHINE_START(INTEGRATOR_AP_DT, "ARM Integrator/AP (Device Tree)") .reserve = integrator_reserve, - .init_irq = ap_init_irq, - .timer = &ap_timer, - .init_machine = ap_init, + .map_io = ap_map_io, + .init_early = ap_init_early, + .init_irq = ap_init_irq_of, + .handle_irq = fpga_handle_irq, + .init_time = ap_of_timer_init, + .init_machine = ap_init_of, + .restart = integrator_restart, + .dt_compat = ap_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index 6258c90d020..0e57f8f820a 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -14,49 +14,41 @@ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/string.h> -#include <linux/sysdev.h> +#include <linux/device.h> #include <linux/amba/bus.h> #include <linux/amba/kmi.h> #include <linux/amba/clcd.h> #include <linux/amba/mmci.h> #include <linux/io.h> +#include <linux/irqchip/versatile-fpga.h> #include <linux/gfp.h> +#include <linux/mtd/physmap.h> +#include <linux/of_irq.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> +#include <linux/sys_soc.h> +#include <linux/sched_clock.h> -#include <asm/clkdev.h> -#include <mach/clkdev.h> -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/irq.h> #include <asm/setup.h> #include <asm/mach-types.h> -#include <asm/hardware/arm_timer.h> -#include <asm/hardware/icst.h> - -#include <mach/cm.h> -#include <mach/lm.h> - #include <asm/mach/arch.h> -#include <asm/mach/flash.h> #include <asm/mach/irq.h> #include <asm/mach/map.h> #include <asm/mach/time.h> -#include <plat/timer-sp.h> +#include <plat/clcd.h> +#include "hardware.h" +#include "cm.h" #include "common.h" +/* Base address to the CP controller */ +static void __iomem *intcp_con_base; + #define INTCP_PA_FLASH_BASE 0x24000000 -#define INTCP_FLASH_SIZE SZ_32M #define INTCP_PA_CLCD_BASE 0xc0000000 -#define INTCP_VA_CIC_BASE IO_ADDRESS(INTEGRATOR_HDR_BASE + 0x40) -#define INTCP_VA_PIC_BASE IO_ADDRESS(INTEGRATOR_IC_BASE) -#define INTCP_VA_SIC_BASE IO_ADDRESS(INTEGRATOR_CP_SIC_BASE) - -#define INTCP_ETH_SIZE 0x10 - -#define INTCP_VA_CTRL_BASE IO_ADDRESS(INTEGRATOR_CP_CTL_BASE) #define INTCP_FLASHPROG 0x04 #define CINTEGRATOR_FLASHPROG_FLVPPEN (1 << 0) #define CINTEGRATOR_FLASHPROG_FLWREN (1 << 1) @@ -64,8 +56,6 @@ /* * Logical Physical * f1000000 10000000 Core module registers - * f1100000 11000000 System controller registers - * f1200000 12000000 EBI registers * f1300000 13000000 Counter/Timer * f1400000 14000000 Interrupt controller * f1600000 16000000 UART 0 @@ -73,26 +63,15 @@ * f1a00000 1a000000 Debug LEDs * fc900000 c9000000 GPIO * fca00000 ca000000 SIC - * fcb00000 cb000000 CP system control */ -static struct map_desc intcp_io_desc[] __initdata = { +static struct map_desc intcp_io_desc[] __initdata __maybe_unused = { { .virtual = IO_ADDRESS(INTEGRATOR_HDR_BASE), .pfn = __phys_to_pfn(INTEGRATOR_HDR_BASE), .length = SZ_4K, .type = MT_DEVICE }, { - .virtual = IO_ADDRESS(INTEGRATOR_SC_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_SC_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_EBI_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_EBI_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { .virtual = IO_ADDRESS(INTEGRATOR_CT_BASE), .pfn = __phys_to_pfn(INTEGRATOR_CT_BASE), .length = SZ_4K, @@ -108,11 +87,6 @@ static struct map_desc intcp_io_desc[] __initdata = { .length = SZ_4K, .type = MT_DEVICE }, { - .virtual = IO_ADDRESS(INTEGRATOR_UART1_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_UART1_BASE), - .length = SZ_4K, - .type = MT_DEVICE - }, { .virtual = IO_ADDRESS(INTEGRATOR_DBG_BASE), .pfn = __phys_to_pfn(INTEGRATOR_DBG_BASE), .length = SZ_4K, @@ -127,11 +101,6 @@ static struct map_desc intcp_io_desc[] __initdata = { .pfn = __phys_to_pfn(INTEGRATOR_CP_SIC_BASE), .length = SZ_4K, .type = MT_DEVICE - }, { - .virtual = IO_ADDRESS(INTEGRATOR_CP_CTL_BASE), - .pfn = __phys_to_pfn(INTEGRATOR_CP_CTL_BASE), - .length = SZ_4K, - .type = MT_DEVICE } }; @@ -140,264 +109,48 @@ static void __init intcp_map_io(void) iotable_init(intcp_io_desc, ARRAY_SIZE(intcp_io_desc)); } -#define cic_writel __raw_writel -#define cic_readl __raw_readl -#define pic_writel __raw_writel -#define pic_readl __raw_readl -#define sic_writel __raw_writel -#define sic_readl __raw_readl - -static void cic_mask_irq(unsigned int irq) -{ - irq -= IRQ_CIC_START; - cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR); -} - -static void cic_unmask_irq(unsigned int irq) -{ - irq -= IRQ_CIC_START; - cic_writel(1 << irq, INTCP_VA_CIC_BASE + IRQ_ENABLE_SET); -} - -static struct irq_chip cic_chip = { - .name = "CIC", - .ack = cic_mask_irq, - .mask = cic_mask_irq, - .unmask = cic_unmask_irq, -}; - -static void pic_mask_irq(unsigned int irq) -{ - irq -= IRQ_PIC_START; - pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR); -} - -static void pic_unmask_irq(unsigned int irq) -{ - irq -= IRQ_PIC_START; - pic_writel(1 << irq, INTCP_VA_PIC_BASE + IRQ_ENABLE_SET); -} - -static struct irq_chip pic_chip = { - .name = "PIC", - .ack = pic_mask_irq, - .mask = pic_mask_irq, - .unmask = pic_unmask_irq, -}; - -static void sic_mask_irq(unsigned int irq) -{ - irq -= IRQ_SIC_START; - sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR); -} - -static void sic_unmask_irq(unsigned int irq) -{ - irq -= IRQ_SIC_START; - sic_writel(1 << irq, INTCP_VA_SIC_BASE + IRQ_ENABLE_SET); -} - -static struct irq_chip sic_chip = { - .name = "SIC", - .ack = sic_mask_irq, - .mask = sic_mask_irq, - .unmask = sic_unmask_irq, -}; - -static void -sic_handle_irq(unsigned int irq, struct irq_desc *desc) -{ - unsigned long status = sic_readl(INTCP_VA_SIC_BASE + IRQ_STATUS); - - if (status == 0) { - do_bad_IRQ(irq, desc); - return; - } - - do { - irq = ffs(status) - 1; - status &= ~(1 << irq); - - irq += IRQ_SIC_START; - - generic_handle_irq(irq); - } while (status); -} - -static void __init intcp_init_irq(void) -{ - unsigned int i; - - /* - * Disable all interrupt sources - */ - pic_writel(0xffffffff, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR); - pic_writel(0xffffffff, INTCP_VA_PIC_BASE + FIQ_ENABLE_CLEAR); - - for (i = IRQ_PIC_START; i <= IRQ_PIC_END; i++) { - if (i == 11) - i = 22; - if (i == 29) - break; - set_irq_chip(i, &pic_chip); - set_irq_handler(i, handle_level_irq); - set_irq_flags(i, IRQF_VALID | IRQF_PROBE); - } - - cic_writel(0xffffffff, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR); - cic_writel(0xffffffff, INTCP_VA_CIC_BASE + FIQ_ENABLE_CLEAR); - - for (i = IRQ_CIC_START; i <= IRQ_CIC_END; i++) { - set_irq_chip(i, &cic_chip); - set_irq_handler(i, handle_level_irq); - set_irq_flags(i, IRQF_VALID); - } - - sic_writel(0x00000fff, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR); - sic_writel(0x00000fff, INTCP_VA_SIC_BASE + FIQ_ENABLE_CLEAR); - - for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) { - set_irq_chip(i, &sic_chip); - set_irq_handler(i, handle_level_irq); - set_irq_flags(i, IRQF_VALID | IRQF_PROBE); - } - - set_irq_chained_handler(IRQ_CP_CPPLDINT, sic_handle_irq); -} - -/* - * Clock handling - */ -#define CM_LOCK (__io_address(INTEGRATOR_HDR_BASE)+INTEGRATOR_HDR_LOCK_OFFSET) -#define CM_AUXOSC (__io_address(INTEGRATOR_HDR_BASE)+0x1c) - -static const struct icst_params cp_auxvco_params = { - .ref = 24000000, - .vco_max = ICST525_VCO_MAX_5V, - .vco_min = ICST525_VCO_MIN, - .vd_min = 8, - .vd_max = 263, - .rd_min = 3, - .rd_max = 65, - .s2div = icst525_s2div, - .idx2s = icst525_idx2s, -}; - -static void cp_auxvco_set(struct clk *clk, struct icst_vco vco) -{ - u32 val; - - val = readl(clk->vcoreg) & ~0x7ffff; - val |= vco.v | (vco.r << 9) | (vco.s << 16); - - writel(0xa05f, CM_LOCK); - writel(val, clk->vcoreg); - writel(0, CM_LOCK); -} - -static const struct clk_ops cp_auxclk_ops = { - .round = icst_clk_round, - .set = icst_clk_set, - .setvco = cp_auxvco_set, -}; - -static struct clk cp_auxclk = { - .ops = &cp_auxclk_ops, - .params = &cp_auxvco_params, - .vcoreg = CM_AUXOSC, -}; - -static struct clk_lookup cp_lookups[] = { - { /* CLCD */ - .dev_id = "mb:c0", - .clk = &cp_auxclk, - }, -}; - /* * Flash handling. */ -static int intcp_flash_init(void) +static int intcp_flash_init(struct platform_device *dev) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); val |= CINTEGRATOR_FLASHPROG_FLWREN; - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); return 0; } -static void intcp_flash_exit(void) +static void intcp_flash_exit(struct platform_device *dev) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); val &= ~(CINTEGRATOR_FLASHPROG_FLVPPEN|CINTEGRATOR_FLASHPROG_FLWREN); - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); } -static void intcp_flash_set_vpp(int on) +static void intcp_flash_set_vpp(struct platform_device *pdev, int on) { u32 val; - val = readl(INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + val = readl(intcp_con_base + INTCP_FLASHPROG); if (on) val |= CINTEGRATOR_FLASHPROG_FLVPPEN; else val &= ~CINTEGRATOR_FLASHPROG_FLVPPEN; - writel(val, INTCP_VA_CTRL_BASE + INTCP_FLASHPROG); + writel(val, intcp_con_base + INTCP_FLASHPROG); } -static struct flash_platform_data intcp_flash_data = { - .map_name = "cfi_probe", +static struct physmap_flash_data intcp_flash_data = { .width = 4, .init = intcp_flash_init, .exit = intcp_flash_exit, .set_vpp = intcp_flash_set_vpp, }; -static struct resource intcp_flash_resource = { - .start = INTCP_PA_FLASH_BASE, - .end = INTCP_PA_FLASH_BASE + INTCP_FLASH_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct platform_device intcp_flash_device = { - .name = "armflash", - .id = 0, - .dev = { - .platform_data = &intcp_flash_data, - }, - .num_resources = 1, - .resource = &intcp_flash_resource, -}; - -static struct resource smc91x_resources[] = { - [0] = { - .start = INTEGRATOR_CP_ETH_BASE, - .end = INTEGRATOR_CP_ETH_BASE + INTCP_ETH_SIZE - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_CP_ETHINT, - .end = IRQ_CP_ETHINT, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct platform_device smc91x_device = { - .name = "smc91x", - .id = 0, - .num_resources = ARRAY_SIZE(smc91x_resources), - .resource = smc91x_resources, -}; - -static struct platform_device *intcp_devs[] __initdata = { - &intcp_flash_device, - &smc91x_device, -}; - /* * It seems that the card insertion interrupt remains active after * we've acknowledged it. We therefore ignore the interrupt, and @@ -406,8 +159,8 @@ static struct platform_device *intcp_devs[] __initdata = { */ static unsigned int mmc_status(struct device *dev) { - unsigned int status = readl(IO_ADDRESS(0xca000000 + 4)); - writel(8, IO_ADDRESS(INTEGRATOR_CP_CTL_BASE + 8)); + unsigned int status = readl(__io_address(0xca000000 + 4)); + writel(8, intcp_con_base + 8); return status & 8; } @@ -419,74 +172,25 @@ static struct mmci_platform_data mmc_data = { .gpio_cd = -1, }; -static struct amba_device mmc_device = { - .dev = { - .init_name = "mb:1c", - .platform_data = &mmc_data, - }, - .res = { - .start = INTEGRATOR_CP_MMC_BASE, - .end = INTEGRATOR_CP_MMC_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 }, - .periphid = 0, -}; - -static struct amba_device aaci_device = { - .dev = { - .init_name = "mb:1d", - }, - .res = { - .start = INTEGRATOR_CP_AACI_BASE, - .end = INTEGRATOR_CP_AACI_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .irq = { IRQ_CP_AACIINT, NO_IRQ }, - .periphid = 0, -}; - - /* * CLCD support */ -static struct clcd_panel vga = { - .mode = { - .name = "VGA", - .refresh = 60, - .xres = 640, - .yres = 480, - .pixclock = 39721, - .left_margin = 40, - .right_margin = 24, - .upper_margin = 32, - .lower_margin = 11, - .hsync_len = 96, - .vsync_len = 2, - .sync = 0, - .vmode = FB_VMODE_NONINTERLACED, - }, - .width = -1, - .height = -1, - .tim2 = TIM2_BCD | TIM2_IPC, - .cntl = CNTL_LCDTFT | CNTL_LCDVCOMP(1), - .bpp = 16, - .grayscale = 0, -}; - /* * Ensure VGA is selected. */ static void cp_clcd_enable(struct clcd_fb *fb) { - u32 val; - - if (fb->fb.var.bits_per_pixel <= 8) - val = CM_CTRL_LCDMUXSEL_VGA_8421BPP; + struct fb_var_screeninfo *var = &fb->fb.var; + u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2 + | CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1; + + if (var->bits_per_pixel <= 8 || + (var->bits_per_pixel == 16 && var->green.length == 5)) + /* Pseudocolor, RGB555, BGR555 */ + val |= CM_CTRL_LCDMUXSEL_VGA555_TFT555; else if (fb->fb.var.bits_per_pixel <= 16) - val = CM_CTRL_LCDMUXSEL_VGA_16BPP - | CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1 - | CM_CTRL_STATIC1 | CM_CTRL_STATIC2; + /* truecolor RGB565 */ + val |= CM_CTRL_LCDMUXSEL_VGA565_TFT555; else val = 0; /* no idea for this, don't trust the docs */ @@ -499,110 +203,134 @@ static void cp_clcd_enable(struct clcd_fb *fb) CM_CTRL_n24BITEN, val); } -static unsigned long framesize = SZ_1M; - static int cp_clcd_setup(struct clcd_fb *fb) { - dma_addr_t dma; + fb->panel = versatile_clcd_get_panel("VGA"); + if (!fb->panel) + return -EINVAL; - fb->panel = &vga; - - fb->fb.screen_base = dma_alloc_writecombine(&fb->dev->dev, framesize, - &dma, GFP_KERNEL); - if (!fb->fb.screen_base) { - printk(KERN_ERR "CLCD: unable to map framebuffer\n"); - return -ENOMEM; - } + return versatile_clcd_setup_dma(fb, SZ_1M); +} - fb->fb.fix.smem_start = dma; - fb->fb.fix.smem_len = framesize; +static struct clcd_board clcd_data = { + .name = "Integrator/CP", + .caps = CLCD_CAP_5551 | CLCD_CAP_RGB565 | CLCD_CAP_888, + .check = clcdfb_check, + .decode = clcdfb_decode, + .enable = cp_clcd_enable, + .setup = cp_clcd_setup, + .mmap = versatile_clcd_mmap_dma, + .remove = versatile_clcd_remove_dma, +}; - return 0; -} +#define REFCOUNTER (__io_address(INTEGRATOR_HDR_BASE) + 0x28) -static int cp_clcd_mmap(struct clcd_fb *fb, struct vm_area_struct *vma) +static u64 notrace intcp_read_sched_clock(void) { - return dma_mmap_writecombine(&fb->dev->dev, vma, - fb->fb.screen_base, - fb->fb.fix.smem_start, - fb->fb.fix.smem_len); + return readl(REFCOUNTER); } -static void cp_clcd_remove(struct clcd_fb *fb) +static void __init intcp_init_early(void) { - dma_free_writecombine(&fb->dev->dev, fb->fb.fix.smem_len, - fb->fb.screen_base, fb->fb.fix.smem_start); + sched_clock_register(intcp_read_sched_clock, 32, 24000000); } -static struct clcd_board clcd_data = { - .name = "Integrator/CP", - .check = clcdfb_check, - .decode = clcdfb_decode, - .enable = cp_clcd_enable, - .setup = cp_clcd_setup, - .mmap = cp_clcd_mmap, - .remove = cp_clcd_remove, +static const struct of_device_id fpga_irq_of_match[] __initconst = { + { .compatible = "arm,versatile-fpga-irq", .data = fpga_irq_of_init, }, + { /* Sentinel */ } }; -static struct amba_device clcd_device = { - .dev = { - .init_name = "mb:c0", - .coherent_dma_mask = ~0, - .platform_data = &clcd_data, - }, - .res = { - .start = INTCP_PA_CLCD_BASE, - .end = INTCP_PA_CLCD_BASE + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - .dma_mask = ~0, - .irq = { IRQ_CP_CLCDCINT, NO_IRQ }, - .periphid = 0, +static void __init intcp_init_irq_of(void) +{ + cm_init(); + of_irq_init(fpga_irq_of_match); +} + +/* + * For the Device Tree, add in the UART, MMC and CLCD specifics as AUXDATA + * and enforce the bus names since these are used for clock lookups. + */ +static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_RTC_BASE, + "rtc", NULL), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART0_BASE, + "uart0", NULL), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_UART1_BASE, + "uart1", NULL), + OF_DEV_AUXDATA("arm,primecell", KMI0_BASE, + "kmi0", NULL), + OF_DEV_AUXDATA("arm,primecell", KMI1_BASE, + "kmi1", NULL), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_MMC_BASE, + "mmci", &mmc_data), + OF_DEV_AUXDATA("arm,primecell", INTEGRATOR_CP_AACI_BASE, + "aaci", &mmc_data), + OF_DEV_AUXDATA("arm,primecell", INTCP_PA_CLCD_BASE, + "clcd", &clcd_data), + OF_DEV_AUXDATA("cfi-flash", INTCP_PA_FLASH_BASE, + "physmap-flash", &intcp_flash_data), + { /* sentinel */ }, }; -static struct amba_device *amba_devs[] __initdata = { - &mmc_device, - &aaci_device, - &clcd_device, +static const struct of_device_id intcp_syscon_match[] = { + { .compatible = "arm,integrator-cp-syscon"}, + { }, }; -static void __init intcp_init(void) +static void __init intcp_init_of(void) { - int i; + struct device_node *cpcon; + struct device *parent; + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + u32 intcp_sc_id; + + cpcon = of_find_matching_node(NULL, intcp_syscon_match); + if (!cpcon) + return; - clkdev_add_table(cp_lookups, ARRAY_SIZE(cp_lookups)); - platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs)); + intcp_con_base = of_iomap(cpcon, 0); + if (!intcp_con_base) + return; - for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { - struct amba_device *d = amba_devs[i]; - amba_device_register(d, &iomem_resource); - } -} + of_platform_populate(NULL, of_default_bus_match_table, + intcp_auxdata_lookup, NULL); -#define TIMER0_VA_BASE __io_address(INTEGRATOR_TIMER0_BASE) -#define TIMER1_VA_BASE __io_address(INTEGRATOR_TIMER1_BASE) -#define TIMER2_VA_BASE __io_address(INTEGRATOR_TIMER2_BASE) + intcp_sc_id = readl(intcp_con_base); -static void __init intcp_timer_init(void) -{ - writel(0, TIMER0_VA_BASE + TIMER_CTRL); - writel(0, TIMER1_VA_BASE + TIMER_CTRL); - writel(0, TIMER2_VA_BASE + TIMER_CTRL); + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) + return; + + soc_dev_attr->soc_id = "XCV"; + soc_dev_attr->machine = "Integrator/CP"; + soc_dev_attr->family = "Integrator"; + soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c", + 'A' + (intcp_sc_id & 0x0f)); + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr->revision); + kfree(soc_dev_attr); + return; + } - sp804_clocksource_init(TIMER2_VA_BASE); - sp804_clockevents_init(TIMER1_VA_BASE, IRQ_TIMERINT1); + parent = soc_device_to_device(soc_dev); + integrator_init_sysfs(parent, intcp_sc_id); } -static struct sys_timer cp_timer = { - .init = intcp_timer_init, +static const char * intcp_dt_board_compat[] = { + "arm,integrator-cp", + NULL, }; -MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP") - /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ - .boot_params = 0x00000100, - .map_io = intcp_map_io, +DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)") .reserve = integrator_reserve, - .init_irq = intcp_init_irq, - .timer = &cp_timer, - .init_machine = intcp_init, + .map_io = intcp_map_io, + .init_early = intcp_init_early, + .init_irq = intcp_init_irq_of, + .handle_irq = fpga_handle_irq, + .init_machine = intcp_init_of, + .restart = integrator_restart, + .dt_compat = intcp_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-integrator/leds.c b/arch/arm/mach-integrator/leds.c index 28be186adb8..f1dcb57a59e 100644 --- a/arch/arm/mach-integrator/leds.c +++ b/arch/arm/mach-integrator/leds.c @@ -1,91 +1,124 @@ /* - * linux/arch/arm/mach-integrator/leds.c + * Driver for the 4 user LEDs found on the Integrator AP/CP baseboard + * Based on Versatile and RealView machine LED code * - * Integrator/AP and Integrator/CP LED control routines - * - * Copyright (C) 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * License terms: GNU General Public License (GPL) version 2 + * Author: Bryan Wu <bryan.wu@canonical.com> */ #include <linux/kernel.h> #include <linux/init.h> -#include <linux/smp.h> -#include <linux/spinlock.h> #include <linux/io.h> +#include <linux/slab.h> +#include <linux/leds.h> -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/leds.h> -#include <asm/system.h> -#include <asm/mach-types.h> -#include <mach/cm.h> +#include "hardware.h" +#include "cm.h" -static int saved_leds; +#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) + +#define ALPHA_REG __io_address(INTEGRATOR_DBG_BASE) +#define LEDREG (__io_address(INTEGRATOR_DBG_BASE) + INTEGRATOR_DBG_LEDS_OFFSET) + +struct integrator_led { + struct led_classdev cdev; + u8 mask; +}; + +/* + * The triggers lines up below will only be used if the + * LED triggers are compiled in. + */ +static const struct { + const char *name; + const char *trigger; +} integrator_leds[] = { + { "integrator:green0", "heartbeat", }, + { "integrator:yellow", }, + { "integrator:red", }, + { "integrator:green1", }, + { "integrator:core_module", "cpu0", }, +}; -static void integrator_leds_event(led_event_t ledevt) +static void integrator_led_set(struct led_classdev *cdev, + enum led_brightness b) { - unsigned long flags; - const unsigned int dbg_base = IO_ADDRESS(INTEGRATOR_DBG_BASE); - unsigned int update_alpha_leds; + struct integrator_led *led = container_of(cdev, + struct integrator_led, cdev); + u32 reg = __raw_readl(LEDREG); - // yup, change the LEDs - local_irq_save(flags); - update_alpha_leds = 0; + if (b != LED_OFF) + reg |= led->mask; + else + reg &= ~led->mask; - switch(ledevt) { - case led_idle_start: - cm_control(CM_CTRL_LED, 0); - break; + while (__raw_readl(ALPHA_REG) & 1) + cpu_relax(); - case led_idle_end: - cm_control(CM_CTRL_LED, CM_CTRL_LED); - break; + __raw_writel(reg, LEDREG); +} - case led_timer: - saved_leds ^= GREEN_LED; - update_alpha_leds = 1; - break; +static enum led_brightness integrator_led_get(struct led_classdev *cdev) +{ + struct integrator_led *led = container_of(cdev, + struct integrator_led, cdev); + u32 reg = __raw_readl(LEDREG); - case led_red_on: - saved_leds |= RED_LED; - update_alpha_leds = 1; - break; + return (reg & led->mask) ? LED_FULL : LED_OFF; +} - case led_red_off: - saved_leds &= ~RED_LED; - update_alpha_leds = 1; - break; +static void cm_led_set(struct led_classdev *cdev, + enum led_brightness b) +{ + if (b != LED_OFF) + cm_control(CM_CTRL_LED, CM_CTRL_LED); + else + cm_control(CM_CTRL_LED, 0); +} - default: - break; - } +static enum led_brightness cm_led_get(struct led_classdev *cdev) +{ + u32 reg = cm_get(); - if (update_alpha_leds) { - while (__raw_readl(dbg_base + INTEGRATOR_DBG_ALPHA_OFFSET) & 1); - __raw_writel(saved_leds, dbg_base + INTEGRATOR_DBG_LEDS_OFFSET); - } - local_irq_restore(flags); + return (reg & CM_CTRL_LED) ? LED_FULL : LED_OFF; } -static int __init leds_init(void) +static int __init integrator_leds_init(void) { - if (machine_is_integrator() || machine_is_cintegrator()) - leds_event = integrator_leds_event; + int i; + + for (i = 0; i < ARRAY_SIZE(integrator_leds); i++) { + struct integrator_led *led; + + led = kzalloc(sizeof(*led), GFP_KERNEL); + if (!led) + break; + + + led->cdev.name = integrator_leds[i].name; + + if (i == 4) { /* Setting for LED in core module */ + led->cdev.brightness_set = cm_led_set; + led->cdev.brightness_get = cm_led_get; + } else { + led->cdev.brightness_set = integrator_led_set; + led->cdev.brightness_get = integrator_led_get; + } + + led->cdev.default_trigger = integrator_leds[i].trigger; + led->mask = BIT(i); + + if (led_classdev_register(NULL, &led->cdev) < 0) { + kfree(led); + break; + } + } return 0; } -core_initcall(leds_init); +/* + * Since we may have triggers on any subsystem, defer registration + * until after subsystem_init. + */ +fs_initcall(integrator_leds_init); +#endif diff --git a/arch/arm/mach-integrator/lm.c b/arch/arm/mach-integrator/lm.c index f52c7af31ea..3f9e9f04316 100644 --- a/arch/arm/mach-integrator/lm.c +++ b/arch/arm/mach-integrator/lm.c @@ -12,7 +12,7 @@ #include <linux/device.h> #include <linux/slab.h> -#include <mach/lm.h> +#include "lm.h" #define to_lm_device(d) container_of(d, struct lm_device, dev) #define to_lm_driver(d) container_of(d, struct lm_driver, drv) diff --git a/arch/arm/mach-integrator/include/mach/lm.h b/arch/arm/mach-integrator/lm.h index 28186b6f2c0..28186b6f2c0 100644 --- a/arch/arm/mach-integrator/include/mach/lm.h +++ b/arch/arm/mach-integrator/lm.h diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c deleted file mode 100644 index 2fdb95433f0..00000000000 --- a/arch/arm/mach-integrator/pci.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * linux/arch/arm/mach-integrator/pci-integrator.c - * - * Copyright (C) 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * - * PCI functions for Integrator - */ -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/init.h> - -#include <asm/irq.h> -#include <asm/system.h> -#include <asm/mach/pci.h> -#include <asm/mach-types.h> - -/* - * A small note about bridges and interrupts. The DECchip 21050 (and - * later) adheres to the PCI-PCI bridge specification. This says that - * the interrupts on the other side of a bridge are swizzled in the - * following manner: - * - * Dev Interrupt Interrupt - * Pin on Pin on - * Device Connector - * - * 4 A A - * B B - * C C - * D D - * - * 5 A B - * B C - * C D - * D A - * - * 6 A C - * B D - * C A - * D B - * - * 7 A D - * B A - * C B - * D C - * - * Where A = pin 1, B = pin 2 and so on and pin=0 = default = A. - * Thus, each swizzle is ((pin-1) + (device#-4)) % 4 - */ - -/* - * This routine handles multiple bridges. - */ -static u8 __init integrator_swizzle(struct pci_dev *dev, u8 *pinp) -{ - int pin = *pinp; - - if (pin == 0) - pin = 1; - - while (dev->bus->self) { - pin = pci_swizzle_interrupt_pin(dev, pin); - /* - * move up the chain of bridges, swizzling as we go. - */ - dev = dev->bus->self; - } - *pinp = pin; - - return PCI_SLOT(dev->devfn); -} - -static int irq_tab[4] __initdata = { - IRQ_AP_PCIINT0, IRQ_AP_PCIINT1, IRQ_AP_PCIINT2, IRQ_AP_PCIINT3 -}; - -/* - * map the specified device/slot/pin to an IRQ. This works out such - * that slot 9 pin 1 is INT0, pin 2 is INT1, and slot 10 pin 1 is INT1. - */ -static int __init integrator_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int intnr = ((slot - 9) + (pin - 1)) & 3; - - return irq_tab[intnr]; -} - -extern void pci_v3_init(void *); - -static struct hw_pci integrator_pci __initdata = { - .swizzle = integrator_swizzle, - .map_irq = integrator_map_irq, - .setup = pci_v3_setup, - .nr_controllers = 1, - .scan = pci_v3_scan_bus, - .preinit = pci_v3_preinit, - .postinit = pci_v3_postinit, -}; - -static int __init integrator_pci_init(void) -{ - if (machine_is_integrator()) - pci_common_init(&integrator_pci); - return 0; -} - -subsys_initcall(integrator_pci_init); diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index 6467d99fa2e..05e1f73a1e8 100644 --- a/arch/arm/mach-integrator/pci_v3.c +++ b/arch/arm/mach-integrator/pci_v3.c @@ -27,89 +27,282 @@ #include <linux/spinlock.h> #include <linux/init.h> #include <linux/io.h> - -#include <mach/hardware.h> -#include <mach/platform.h> -#include <asm/irq.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/of_pci.h> +#include <video/vga.h> + +#include <asm/mach/map.h> #include <asm/signal.h> -#include <asm/system.h> #include <asm/mach/pci.h> #include <asm/irq_regs.h> -#include <asm/hardware/pci_v3.h> +#include "pci_v3.h" +#include "hardware.h" + +/* + * Where in the memory map does PCI live? + * + * This represents a fairly liberal usage of address space. Even though + * the V3 only has two windows (therefore we need to map stuff on the fly), + * we maintain the same addresses, even if they're not mapped. + */ +#define PHYS_PCI_MEM_BASE 0x40000000 /* 256M */ +#define PHYS_PCI_PRE_BASE 0x50000000 /* 256M */ +#define PHYS_PCI_IO_BASE 0x60000000 /* 16M */ +#define PHYS_PCI_CONFIG_BASE 0x61000000 /* 16M */ +#define PHYS_PCI_V3_BASE 0x62000000 /* 64K */ + +#define PCI_MEMORY_VADDR IOMEM(0xe8000000) +#define PCI_CONFIG_VADDR IOMEM(0xec000000) + +/* + * V3 Local Bus to PCI Bridge definitions + * + * Registers (these are taken from page 129 of the EPC User's Manual Rev 1.04 + * All V3 register names are prefaced by V3_ to avoid clashing with any other + * PCI definitions. Their names match the user's manual. + * + * I'm assuming that I20 is disabled. + * + */ +#define V3_PCI_VENDOR 0x00000000 +#define V3_PCI_DEVICE 0x00000002 +#define V3_PCI_CMD 0x00000004 +#define V3_PCI_STAT 0x00000006 +#define V3_PCI_CC_REV 0x00000008 +#define V3_PCI_HDR_CFG 0x0000000C +#define V3_PCI_IO_BASE 0x00000010 +#define V3_PCI_BASE0 0x00000014 +#define V3_PCI_BASE1 0x00000018 +#define V3_PCI_SUB_VENDOR 0x0000002C +#define V3_PCI_SUB_ID 0x0000002E +#define V3_PCI_ROM 0x00000030 +#define V3_PCI_BPARAM 0x0000003C +#define V3_PCI_MAP0 0x00000040 +#define V3_PCI_MAP1 0x00000044 +#define V3_PCI_INT_STAT 0x00000048 +#define V3_PCI_INT_CFG 0x0000004C +#define V3_LB_BASE0 0x00000054 +#define V3_LB_BASE1 0x00000058 +#define V3_LB_MAP0 0x0000005E +#define V3_LB_MAP1 0x00000062 +#define V3_LB_BASE2 0x00000064 +#define V3_LB_MAP2 0x00000066 +#define V3_LB_SIZE 0x00000068 +#define V3_LB_IO_BASE 0x0000006E +#define V3_FIFO_CFG 0x00000070 +#define V3_FIFO_PRIORITY 0x00000072 +#define V3_FIFO_STAT 0x00000074 +#define V3_LB_ISTAT 0x00000076 +#define V3_LB_IMASK 0x00000077 +#define V3_SYSTEM 0x00000078 +#define V3_LB_CFG 0x0000007A +#define V3_PCI_CFG 0x0000007C +#define V3_DMA_PCI_ADR0 0x00000080 +#define V3_DMA_PCI_ADR1 0x00000090 +#define V3_DMA_LOCAL_ADR0 0x00000084 +#define V3_DMA_LOCAL_ADR1 0x00000094 +#define V3_DMA_LENGTH0 0x00000088 +#define V3_DMA_LENGTH1 0x00000098 +#define V3_DMA_CSR0 0x0000008B +#define V3_DMA_CSR1 0x0000009B +#define V3_DMA_CTLB_ADR0 0x0000008C +#define V3_DMA_CTLB_ADR1 0x0000009C +#define V3_DMA_DELAY 0x000000E0 +#define V3_MAIL_DATA 0x000000C0 +#define V3_PCI_MAIL_IEWR 0x000000D0 +#define V3_PCI_MAIL_IERD 0x000000D2 +#define V3_LB_MAIL_IEWR 0x000000D4 +#define V3_LB_MAIL_IERD 0x000000D6 +#define V3_MAIL_WR_STAT 0x000000D8 +#define V3_MAIL_RD_STAT 0x000000DA +#define V3_QBA_MAP 0x000000DC + +/* PCI COMMAND REGISTER bits + */ +#define V3_COMMAND_M_FBB_EN (1 << 9) +#define V3_COMMAND_M_SERR_EN (1 << 8) +#define V3_COMMAND_M_PAR_EN (1 << 6) +#define V3_COMMAND_M_MASTER_EN (1 << 2) +#define V3_COMMAND_M_MEM_EN (1 << 1) +#define V3_COMMAND_M_IO_EN (1 << 0) + +/* SYSTEM REGISTER bits + */ +#define V3_SYSTEM_M_RST_OUT (1 << 15) +#define V3_SYSTEM_M_LOCK (1 << 14) + +/* PCI_CFG bits + */ +#define V3_PCI_CFG_M_I2O_EN (1 << 15) +#define V3_PCI_CFG_M_IO_REG_DIS (1 << 14) +#define V3_PCI_CFG_M_IO_DIS (1 << 13) +#define V3_PCI_CFG_M_EN3V (1 << 12) +#define V3_PCI_CFG_M_RETRY_EN (1 << 10) +#define V3_PCI_CFG_M_AD_LOW1 (1 << 9) +#define V3_PCI_CFG_M_AD_LOW0 (1 << 8) + +/* PCI_BASE register bits (PCI -> Local Bus) + */ +#define V3_PCI_BASE_M_ADR_BASE 0xFFF00000 +#define V3_PCI_BASE_M_ADR_BASEL 0x000FFF00 +#define V3_PCI_BASE_M_PREFETCH (1 << 3) +#define V3_PCI_BASE_M_TYPE (3 << 1) +#define V3_PCI_BASE_M_IO (1 << 0) + +/* PCI MAP register bits (PCI -> Local bus) + */ +#define V3_PCI_MAP_M_MAP_ADR 0xFFF00000 +#define V3_PCI_MAP_M_RD_POST_INH (1 << 15) +#define V3_PCI_MAP_M_ROM_SIZE (3 << 10) +#define V3_PCI_MAP_M_SWAP (3 << 8) +#define V3_PCI_MAP_M_ADR_SIZE 0x000000F0 +#define V3_PCI_MAP_M_REG_EN (1 << 1) +#define V3_PCI_MAP_M_ENABLE (1 << 0) + +/* + * LB_BASE0,1 register bits (Local bus -> PCI) + */ +#define V3_LB_BASE_ADR_BASE 0xfff00000 +#define V3_LB_BASE_SWAP (3 << 8) +#define V3_LB_BASE_ADR_SIZE (15 << 4) +#define V3_LB_BASE_PREFETCH (1 << 3) +#define V3_LB_BASE_ENABLE (1 << 0) + +#define V3_LB_BASE_ADR_SIZE_1MB (0 << 4) +#define V3_LB_BASE_ADR_SIZE_2MB (1 << 4) +#define V3_LB_BASE_ADR_SIZE_4MB (2 << 4) +#define V3_LB_BASE_ADR_SIZE_8MB (3 << 4) +#define V3_LB_BASE_ADR_SIZE_16MB (4 << 4) +#define V3_LB_BASE_ADR_SIZE_32MB (5 << 4) +#define V3_LB_BASE_ADR_SIZE_64MB (6 << 4) +#define V3_LB_BASE_ADR_SIZE_128MB (7 << 4) +#define V3_LB_BASE_ADR_SIZE_256MB (8 << 4) +#define V3_LB_BASE_ADR_SIZE_512MB (9 << 4) +#define V3_LB_BASE_ADR_SIZE_1GB (10 << 4) +#define V3_LB_BASE_ADR_SIZE_2GB (11 << 4) + +#define v3_addr_to_lb_base(a) ((a) & V3_LB_BASE_ADR_BASE) + +/* + * LB_MAP0,1 register bits (Local bus -> PCI) + */ +#define V3_LB_MAP_MAP_ADR 0xfff0 +#define V3_LB_MAP_TYPE (7 << 1) +#define V3_LB_MAP_AD_LOW_EN (1 << 0) + +#define V3_LB_MAP_TYPE_IACK (0 << 1) +#define V3_LB_MAP_TYPE_IO (1 << 1) +#define V3_LB_MAP_TYPE_MEM (3 << 1) +#define V3_LB_MAP_TYPE_CONFIG (5 << 1) +#define V3_LB_MAP_TYPE_MEM_MULTIPLE (6 << 1) + +#define v3_addr_to_lb_map(a) (((a) >> 16) & V3_LB_MAP_MAP_ADR) + +/* + * LB_BASE2 register bits (Local bus -> PCI IO) + */ +#define V3_LB_BASE2_ADR_BASE 0xff00 +#define V3_LB_BASE2_SWAP (3 << 6) +#define V3_LB_BASE2_ENABLE (1 << 0) + +#define v3_addr_to_lb_base2(a) (((a) >> 16) & V3_LB_BASE2_ADR_BASE) + +/* + * LB_MAP2 register bits (Local bus -> PCI IO) + */ +#define V3_LB_MAP2_MAP_ADR 0xff00 + +#define v3_addr_to_lb_map2(a) (((a) >> 16) & V3_LB_MAP2_MAP_ADR) /* * The V3 PCI interface chip in Integrator provides several windows from * local bus memory into the PCI memory areas. Unfortunately, there - * are not really enough windows for our usage, therefore we reuse + * are not really enough windows for our usage, therefore we reuse * one of the windows for access to PCI configuration space. The * memory map is as follows: - * + * * Local Bus Memory Usage - * + * * 40000000 - 4FFFFFFF PCI memory. 256M non-prefetchable * 50000000 - 5FFFFFFF PCI memory. 256M prefetchable * 60000000 - 60FFFFFF PCI IO. 16M * 61000000 - 61FFFFFF PCI Configuration. 16M - * + * * There are three V3 windows, each described by a pair of V3 registers. * These are LB_BASE0/LB_MAP0, LB_BASE1/LB_MAP1 and LB_BASE2/LB_MAP2. * Base0 and Base1 can be used for any type of PCI memory access. Base2 * can be used either for PCI I/O or for I20 accesses. By default, uHAL * uses this only for PCI IO space. - * + * * Normally these spaces are mapped using the following base registers: - * + * * Usage Local Bus Memory Base/Map registers used - * + * * Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0 * Mem 50000000 - 5FFFFFFF LB_BASE1/LB_MAP1 * IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2 * Cfg 61000000 - 61FFFFFF - * + * * This means that I20 and PCI configuration space accesses will fail. - * When PCI configuration accesses are needed (via the uHAL PCI + * When PCI configuration accesses are needed (via the uHAL PCI * configuration space primitives) we must remap the spaces as follows: - * + * * Usage Local Bus Memory Base/Map registers used - * + * * Mem 40000000 - 4FFFFFFF LB_BASE0/LB_MAP0 * Mem 50000000 - 5FFFFFFF LB_BASE0/LB_MAP0 * IO 60000000 - 60FFFFFF LB_BASE2/LB_MAP2 * Cfg 61000000 - 61FFFFFF LB_BASE1/LB_MAP1 - * + * * To make this work, the code depends on overlapping windows working. - * The V3 chip translates an address by checking its range within + * The V3 chip translates an address by checking its range within * each of the BASE/MAP pairs in turn (in ascending register number * order). It will use the first matching pair. So, for example, * if the same address is mapped by both LB_BASE0/LB_MAP0 and - * LB_BASE1/LB_MAP1, the V3 will use the translation from + * LB_BASE1/LB_MAP1, the V3 will use the translation from * LB_BASE0/LB_MAP0. - * + * * To allow PCI Configuration space access, the code enlarges the * window mapped by LB_BASE0/LB_MAP0 from 256M to 512M. This occludes * the windows currently mapped by LB_BASE1/LB_MAP1 so that it can * be remapped for use by configuration cycles. - * - * At the end of the PCI Configuration space accesses, + * + * At the end of the PCI Configuration space accesses, * LB_BASE1/LB_MAP1 is reset to map PCI Memory. Finally the window * mapped by LB_BASE0/LB_MAP0 is reduced in size from 512M to 256M to * reveal the now restored LB_BASE1/LB_MAP1 window. - * + * * NOTE: We do not set up I2O mapping. I suspect that this is only * for an intelligent (target) device. Using I2O disables most of * the mappings into PCI memory. */ +/* Filled in by probe */ +static void __iomem *pci_v3_base; +/* CPU side memory ranges */ +static struct resource conf_mem; /* FIXME: remap this instead of static map */ +static struct resource io_mem; +static struct resource non_mem; +static struct resource pre_mem; +/* PCI side memory ranges */ +static u64 non_mem_pci; +static u64 non_mem_pci_sz; +static u64 pre_mem_pci; +static u64 pre_mem_pci_sz; + // V3 access routines -#define v3_writeb(o,v) __raw_writeb(v, PCI_V3_VADDR + (unsigned int)(o)) -#define v3_readb(o) (__raw_readb(PCI_V3_VADDR + (unsigned int)(o))) +#define v3_writeb(o,v) __raw_writeb(v, pci_v3_base + (unsigned int)(o)) +#define v3_readb(o) (__raw_readb(pci_v3_base + (unsigned int)(o))) -#define v3_writew(o,v) __raw_writew(v, PCI_V3_VADDR + (unsigned int)(o)) -#define v3_readw(o) (__raw_readw(PCI_V3_VADDR + (unsigned int)(o))) +#define v3_writew(o,v) __raw_writew(v, pci_v3_base + (unsigned int)(o)) +#define v3_readw(o) (__raw_readw(pci_v3_base + (unsigned int)(o))) -#define v3_writel(o,v) __raw_writel(v, PCI_V3_VADDR + (unsigned int)(o)) -#define v3_readl(o) (__raw_readl(PCI_V3_VADDR + (unsigned int)(o))) +#define v3_writel(o,v) __raw_writel(v, pci_v3_base + (unsigned int)(o)) +#define v3_readl(o) (__raw_readl(pci_v3_base + (unsigned int)(o))) /*============================================================================ * @@ -127,8 +320,8 @@ * * returns: configuration address to play on the PCI bus * - * To generate the appropriate PCI configuration cycles in the PCI - * configuration address space, you present the V3 with the following pattern + * To generate the appropriate PCI configuration cycles in the PCI + * configuration address space, you present the V3 with the following pattern * (which is very nearly a type 1 (except that the lower two bits are 00 and * not 01). In order for this mapping to work you need to set up one of * the local to PCI aperatures to 16Mbytes in length translating to @@ -138,7 +331,7 @@ * * Type 0: * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 + * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | |D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|0| @@ -150,7 +343,7 @@ * * Type 1: * - * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 + * 3 3|3 3 2 2|2 2 2 2|2 2 2 2|1 1 1 1|1 1 1 1|1 1 * 3 2|1 0 9 8|7 6 5 4|3 2 1 0|9 8 7 6|5 4 3 2|1 0 9 8|7 6 5 4|3 2 1 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | | | | | | | | | | |B|B|B|B|B|B|B|B|D|D|D|D|D|F|F|F|R|R|R|R|R|R|0|1| @@ -161,27 +354,14 @@ * 15:11 Device number (5 bits) * 10:8 function number * 7:2 register number - * + * */ -static DEFINE_SPINLOCK(v3_lock); - -#define PCI_BUS_NONMEM_START 0x00000000 -#define PCI_BUS_NONMEM_SIZE SZ_256M - -#define PCI_BUS_PREMEM_START PCI_BUS_NONMEM_START + PCI_BUS_NONMEM_SIZE -#define PCI_BUS_PREMEM_SIZE SZ_256M - -#if PCI_BUS_NONMEM_START & 0x000fffff -#error PCI_BUS_NONMEM_START must be megabyte aligned -#endif -#if PCI_BUS_PREMEM_START & 0x000fffff -#error PCI_BUS_PREMEM_START must be megabyte aligned -#endif +static DEFINE_RAW_SPINLOCK(v3_lock); #undef V3_LB_BASE_PREFETCH #define V3_LB_BASE_PREFETCH 0 -static unsigned long v3_open_config_window(struct pci_bus *bus, +static void __iomem *v3_open_config_window(struct pci_bus *bus, unsigned int devfn, int offset) { unsigned int address, mapaddress, busnr; @@ -191,12 +371,9 @@ static unsigned long v3_open_config_window(struct pci_bus *bus, /* * Trap out illegal values */ - if (offset > 255) - BUG(); - if (busnr > 255) - BUG(); - if (devfn > 255) - BUG(); + BUG_ON(offset > 255); + BUG_ON(busnr > 255); + BUG_ON(devfn > 255); if (busnr == 0) { int slot = PCI_SLOT(devfn); @@ -246,13 +423,13 @@ static unsigned long v3_open_config_window(struct pci_bus *bus, * prefetchable), this frees up base1 for re-use by * configuration memory */ - v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) | + v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(non_mem.start) | V3_LB_BASE_ADR_SIZE_512MB | V3_LB_BASE_ENABLE); /* * Set up base1/map1 to point into configuration space. */ - v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_CONFIG_BASE) | + v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(conf_mem.start) | V3_LB_BASE_ADR_SIZE_16MB | V3_LB_BASE_ENABLE); v3_writew(V3_LB_MAP1, mapaddress); @@ -264,27 +441,27 @@ static void v3_close_config_window(void) /* * Reassign base1 for use by prefetchable PCI memory */ - v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE + SZ_256M) | + v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(pre_mem.start) | V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_PREFETCH | V3_LB_BASE_ENABLE); - v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(PCI_BUS_PREMEM_START) | + v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(pre_mem_pci) | V3_LB_MAP_TYPE_MEM_MULTIPLE); /* * And shrink base0 back to a 256M window (NOTE: MAP0 already correct) */ - v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) | + v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(non_mem.start) | V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_ENABLE); } static int v3_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) { - unsigned long addr; + void __iomem *addr; unsigned long flags; u32 v; - spin_lock_irqsave(&v3_lock, flags); + raw_spin_lock_irqsave(&v3_lock, flags); addr = v3_open_config_window(bus, devfn, where); switch (size) { @@ -302,7 +479,7 @@ static int v3_read_config(struct pci_bus *bus, unsigned int devfn, int where, } v3_close_config_window(); - spin_unlock_irqrestore(&v3_lock, flags); + raw_spin_unlock_irqrestore(&v3_lock, flags); *val = v; return PCIBIOS_SUCCESSFUL; @@ -311,10 +488,10 @@ static int v3_read_config(struct pci_bus *bus, unsigned int devfn, int where, static int v3_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) { - unsigned long addr; + void __iomem *addr; unsigned long flags; - spin_lock_irqsave(&v3_lock, flags); + raw_spin_lock_irqsave(&v3_lock, flags); addr = v3_open_config_window(bus, devfn, where); switch (size) { @@ -335,7 +512,7 @@ static int v3_write_config(struct pci_bus *bus, unsigned int devfn, int where, } v3_close_config_window(); - spin_unlock_irqrestore(&v3_lock, flags); + raw_spin_unlock_irqrestore(&v3_lock, flags); return PCIBIOS_SUCCESSFUL; } @@ -345,21 +522,7 @@ static struct pci_ops pci_v3_ops = { .write = v3_write_config, }; -static struct resource non_mem = { - .name = "PCI non-prefetchable", - .start = PHYS_PCI_MEM_BASE + PCI_BUS_NONMEM_START, - .end = PHYS_PCI_MEM_BASE + PCI_BUS_NONMEM_START + PCI_BUS_NONMEM_SIZE - 1, - .flags = IORESOURCE_MEM, -}; - -static struct resource pre_mem = { - .name = "PCI prefetchable", - .start = PHYS_PCI_MEM_BASE + PCI_BUS_PREMEM_START, - .end = PHYS_PCI_MEM_BASE + PCI_BUS_PREMEM_START + PCI_BUS_PREMEM_SIZE - 1, - .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, -}; - -static int __init pci_v3_setup_resources(struct resource **resource) +static int __init pci_v3_setup_resources(struct pci_sys_data *sys) { if (request_resource(&iomem_resource, &non_mem)) { printk(KERN_ERR "PCI: unable to allocate non-prefetchable " @@ -374,13 +537,11 @@ static int __init pci_v3_setup_resources(struct resource **resource) } /* - * bus->resource[0] is the IO resource for this bus - * bus->resource[1] is the mem resource for this bus - * bus->resource[2] is the prefetch mem resource for this bus + * the mem resource for this bus + * the prefetch mem resource for this bus */ - resource[0] = &ioport_resource; - resource[1] = &non_mem; - resource[2] = &pre_mem; + pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset); + pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset); return 1; } @@ -390,9 +551,10 @@ static int __init pci_v3_setup_resources(struct resource **resource) * means I can't get additional information on the reason for the pm2fb * problems. I suppose I'll just have to mind-meld with the machine. ;) */ -#define SC_PCI IO_ADDRESS(INTEGRATOR_SC_PCIENABLE) -#define SC_LBFADDR IO_ADDRESS(INTEGRATOR_SC_BASE + 0x20) -#define SC_LBFCODE IO_ADDRESS(INTEGRATOR_SC_BASE + 0x24) +static void __iomem *ap_syscon_base; +#define INTEGRATOR_SC_PCIENABLE_OFFSET 0x18 +#define INTEGRATOR_SC_LBFADDR_OFFSET 0x20 +#define INTEGRATOR_SC_LBFCODE_OFFSET 0x24 static int v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) @@ -403,13 +565,13 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) char buf[128]; sprintf(buf, "V3 fault: addr 0x%08lx, FSR 0x%03x, PC 0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x ISTAT=%02x\n", - addr, fsr, pc, instr, __raw_readl(SC_LBFADDR), __raw_readl(SC_LBFCODE) & 255, + addr, fsr, pc, instr, __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFADDR_OFFSET), __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFCODE_OFFSET) & 255, v3_readb(V3_LB_ISTAT)); printk(KERN_DEBUG "%s", buf); #endif v3_writeb(V3_LB_ISTAT, 0); - __raw_writel(3, SC_PCI); + __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET); /* * If the instruction being executed was a read, @@ -440,7 +602,7 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) return 1; } -static irqreturn_t v3_irq(int dummy, void *devid) +static irqreturn_t v3_irq(int irq, void *devid) { #ifdef CONFIG_DEBUG_LL struct pt_regs *regs = get_irq_regs(); @@ -450,16 +612,16 @@ static irqreturn_t v3_irq(int dummy, void *devid) extern void printascii(const char *); sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x " - "ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr, - __raw_readl(SC_LBFADDR), - __raw_readl(SC_LBFCODE) & 255, + "ISTAT=%02x\n", irq, pc, instr, + __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFADDR_OFFSET), + __raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFCODE_OFFSET) & 255, v3_readb(V3_LB_ISTAT)); printascii(buf); #endif v3_writew(V3_PCI_STAT, 0xf000); v3_writeb(V3_LB_ISTAT, 0); - __raw_writel(3, SC_PCI); + __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET); #ifdef CONFIG_DEBUG_LL /* @@ -475,32 +637,31 @@ static irqreturn_t v3_irq(int dummy, void *devid) return IRQ_HANDLED; } -int __init pci_v3_setup(int nr, struct pci_sys_data *sys) +static int __init pci_v3_setup(int nr, struct pci_sys_data *sys) { int ret = 0; + if (!ap_syscon_base) + return -EINVAL; + if (nr == 0) { - sys->mem_offset = PHYS_PCI_MEM_BASE; - ret = pci_v3_setup_resources(sys->resource); + sys->mem_offset = non_mem.start; + ret = pci_v3_setup_resources(sys); } return ret; } -struct pci_bus * __init pci_v3_scan_bus(int nr, struct pci_sys_data *sys) -{ - return pci_scan_bus(sys->busnr, &pci_v3_ops, sys); -} - /* * V3_LB_BASE? - local bus address * V3_LB_MAP? - pci bus address */ -void __init pci_v3_preinit(void) +static void __init pci_v3_preinit(void) { unsigned long flags; unsigned int temp; - int ret; + + pcibios_min_mem = 0x00100000; /* * Hook in our fault handler for PCI errors @@ -510,7 +671,7 @@ void __init pci_v3_preinit(void) hook_fault_code(8, v3_pci_fault, SIGBUS, 0, "external abort on non-linefetch"); hook_fault_code(10, v3_pci_fault, SIGBUS, 0, "external abort on non-linefetch"); - spin_lock_irqsave(&v3_lock, flags); + raw_spin_lock_irqsave(&v3_lock, flags); /* * Unlock V3 registers, but only if they were previously locked. @@ -522,25 +683,25 @@ void __init pci_v3_preinit(void) * Setup window 0 - PCI non-prefetchable memory * Local: 0x40000000 Bus: 0x00000000 Size: 256MB */ - v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE) | + v3_writel(V3_LB_BASE0, v3_addr_to_lb_base(non_mem.start) | V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_ENABLE); - v3_writew(V3_LB_MAP0, v3_addr_to_lb_map(PCI_BUS_NONMEM_START) | + v3_writew(V3_LB_MAP0, v3_addr_to_lb_map(non_mem_pci) | V3_LB_MAP_TYPE_MEM); /* * Setup window 1 - PCI prefetchable memory * Local: 0x50000000 Bus: 0x10000000 Size: 256MB */ - v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(PHYS_PCI_MEM_BASE + SZ_256M) | + v3_writel(V3_LB_BASE1, v3_addr_to_lb_base(pre_mem.start) | V3_LB_BASE_ADR_SIZE_256MB | V3_LB_BASE_PREFETCH | V3_LB_BASE_ENABLE); - v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(PCI_BUS_PREMEM_START) | + v3_writew(V3_LB_MAP1, v3_addr_to_lb_map(pre_mem_pci) | V3_LB_MAP_TYPE_MEM_MULTIPLE); /* * Setup window 2 - PCI IO */ - v3_writel(V3_LB_BASE2, v3_addr_to_lb_base2(PHYS_PCI_IO_BASE) | + v3_writel(V3_LB_BASE2, v3_addr_to_lb_base2(io_mem.start) | V3_LB_BASE_ENABLE); v3_writew(V3_LB_MAP2, v3_addr_to_lb_map2(0)); @@ -573,20 +734,12 @@ void __init pci_v3_preinit(void) v3_writeb(V3_LB_ISTAT, 0); v3_writew(V3_LB_CFG, v3_readw(V3_LB_CFG) | (1 << 10)); v3_writeb(V3_LB_IMASK, 0x28); - __raw_writel(3, SC_PCI); - - /* - * Grab the PCI error interrupt. - */ - ret = request_irq(IRQ_AP_V3INT, v3_irq, 0, "V3", NULL); - if (ret) - printk(KERN_ERR "PCI: unable to grab PCI error " - "interrupt: %d\n", ret); + __raw_writel(3, ap_syscon_base + INTEGRATOR_SC_PCIENABLE_OFFSET); - spin_unlock_irqrestore(&v3_lock, flags); + raw_spin_unlock_irqrestore(&v3_lock, flags); } -void __init pci_v3_postinit(void) +static void __init pci_v3_postinit(void) { unsigned int pci_cmd; @@ -605,5 +758,194 @@ void __init pci_v3_postinit(void) "interrupt: %d\n", ret); #endif - register_isa_ports(PHYS_PCI_MEM_BASE, PHYS_PCI_IO_BASE, 0); + register_isa_ports(non_mem.start, io_mem.start, 0); +} + +/* + * A small note about bridges and interrupts. The DECchip 21050 (and + * later) adheres to the PCI-PCI bridge specification. This says that + * the interrupts on the other side of a bridge are swizzled in the + * following manner: + * + * Dev Interrupt Interrupt + * Pin on Pin on + * Device Connector + * + * 4 A A + * B B + * C C + * D D + * + * 5 A B + * B C + * C D + * D A + * + * 6 A C + * B D + * C A + * D B + * + * 7 A D + * B A + * C B + * D C + * + * Where A = pin 1, B = pin 2 and so on and pin=0 = default = A. + * Thus, each swizzle is ((pin-1) + (device#-4)) % 4 + */ + +/* + * This routine handles multiple bridges. + */ +static u8 __init pci_v3_swizzle(struct pci_dev *dev, u8 *pinp) +{ + if (*pinp == 0) + *pinp = 1; + + return pci_common_swizzle(dev, pinp); +} + +static struct hw_pci pci_v3 __initdata = { + .swizzle = pci_v3_swizzle, + .setup = pci_v3_setup, + .nr_controllers = 1, + .ops = &pci_v3_ops, + .preinit = pci_v3_preinit, + .postinit = pci_v3_postinit, +}; + +static int __init pci_v3_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct of_pci_range_parser parser; + struct of_pci_range range; + struct resource *res; + int irq, ret; + + /* Remap the Integrator system controller */ + ap_syscon_base = devm_ioremap(&pdev->dev, INTEGRATOR_SC_BASE, 0x100); + if (!ap_syscon_base) { + dev_err(&pdev->dev, "unable to remap the AP syscon for PCIv3\n"); + return -ENODEV; + } + + /* Device tree probe path */ + if (!np) { + dev_err(&pdev->dev, "no device tree node for PCIv3\n"); + return -ENODEV; + } + + if (of_pci_range_parser_init(&parser, np)) + return -EINVAL; + + /* Get base for bridge registers */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "unable to obtain PCIv3 base\n"); + return -ENODEV; + } + pci_v3_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!pci_v3_base) { + dev_err(&pdev->dev, "unable to remap PCIv3 base\n"); + return -ENODEV; + } + + /* Get and request error IRQ resource */ + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + dev_err(&pdev->dev, "unable to obtain PCIv3 error IRQ\n"); + return -ENODEV; + } + ret = devm_request_irq(&pdev->dev, irq, v3_irq, 0, + "PCIv3 error", NULL); + if (ret < 0) { + dev_err(&pdev->dev, "unable to request PCIv3 error IRQ %d (%d)\n", irq, ret); + return ret; + } + + for_each_of_pci_range(&parser, &range) { + if (!range.flags) { + of_pci_range_to_resource(&range, np, &conf_mem); + conf_mem.name = "PCIv3 config"; + } + if (range.flags & IORESOURCE_IO) { + of_pci_range_to_resource(&range, np, &io_mem); + io_mem.name = "PCIv3 I/O"; + } + if ((range.flags & IORESOURCE_MEM) && + !(range.flags & IORESOURCE_PREFETCH)) { + non_mem_pci = range.pci_addr; + non_mem_pci_sz = range.size; + of_pci_range_to_resource(&range, np, &non_mem); + non_mem.name = "PCIv3 non-prefetched mem"; + } + if ((range.flags & IORESOURCE_MEM) && + (range.flags & IORESOURCE_PREFETCH)) { + pre_mem_pci = range.pci_addr; + pre_mem_pci_sz = range.size; + of_pci_range_to_resource(&range, np, &pre_mem); + pre_mem.name = "PCIv3 prefetched mem"; + } + } + + if (!conf_mem.start || !io_mem.start || + !non_mem.start || !pre_mem.start) { + dev_err(&pdev->dev, "missing ranges in device node\n"); + return -EINVAL; + } + + pci_v3.map_irq = of_irq_parse_and_map_pci; + pci_common_init_dev(&pdev->dev, &pci_v3); + + return 0; +} + +static const struct of_device_id pci_ids[] = { + { .compatible = "v3,v360epc-pci", }, + {}, +}; + +static struct platform_driver pci_v3_driver = { + .driver = { + .name = "pci-v3", + .of_match_table = pci_ids, + }, +}; + +static int __init pci_v3_init(void) +{ + return platform_driver_probe(&pci_v3_driver, pci_v3_probe); +} + +subsys_initcall(pci_v3_init); + +/* + * Static mappings for the PCIv3 bridge + * + * e8000000 40000000 PCI memory PHYS_PCI_MEM_BASE (max 512M) + * ec000000 61000000 PCI config space PHYS_PCI_CONFIG_BASE (max 16M) + * fee00000 60000000 PCI IO PHYS_PCI_IO_BASE (max 16M) + */ +static struct map_desc pci_v3_io_desc[] __initdata __maybe_unused = { + { + .virtual = (unsigned long)PCI_MEMORY_VADDR, + .pfn = __phys_to_pfn(PHYS_PCI_MEM_BASE), + .length = SZ_16M, + .type = MT_DEVICE + }, { + .virtual = (unsigned long)PCI_CONFIG_VADDR, + .pfn = __phys_to_pfn(PHYS_PCI_CONFIG_BASE), + .length = SZ_16M, + .type = MT_DEVICE + } +}; + +int __init pci_v3_early_init(void) +{ + iotable_init(pci_v3_io_desc, ARRAY_SIZE(pci_v3_io_desc)); + vga_base = (unsigned long)PCI_MEMORY_VADDR; + pci_map_io_early(__phys_to_pfn(PHYS_PCI_IO_BASE)); + return 0; } diff --git a/arch/arm/mach-integrator/pci_v3.h b/arch/arm/mach-integrator/pci_v3.h new file mode 100644 index 00000000000..06a9e2e7d00 --- /dev/null +++ b/arch/arm/mach-integrator/pci_v3.h @@ -0,0 +1,9 @@ +/* Simple oneliner include to the PCIv3 early init */ +#ifdef CONFIG_PCI +extern int pci_v3_early_init(void); +#else +static inline int pci_v3_early_init(void) +{ + return 0; +} +#endif |