diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu-db8500.c')
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db8500.c | 157 |
1 files changed, 105 insertions, 52 deletions
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 4598b06c8c5..6a6753e4965 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2008-2009 ST-Ericsson + * Copyright (C) 2008-2009 ST-Ericsson SA * * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> * @@ -14,19 +14,22 @@ #include <linux/amba/bus.h> #include <linux/interrupt.h> #include <linux/irq.h> -#include <linux/gpio.h> +#include <linux/gpio/nomadik.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/sys_soc.h> #include <asm/mach/map.h> #include <asm/pmu.h> #include <mach/hardware.h> #include <mach/setup.h> #include <mach/devices.h> +#include <linux/mfd/dbx500-prcmu.h> +#include <mach/reboot_reasons.h> #include <mach/usb.h> +#include <mach/ste-dma40-db8500.h> #include "devices-db8500.h" -#include "ste-dma40-db8500.h" /* minimum static i/o mapping required to boot U8500 platforms */ static struct map_desc u8500_uart_io_desc[] __initdata = { @@ -40,8 +43,11 @@ static struct map_desc u8500_io_desc[] __initdata = { __IO_DEV_DESC(U8500_L2CC_BASE, SZ_4K), __IO_DEV_DESC(U8500_TWD_BASE, SZ_4K), __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K), + __IO_DEV_DESC(U8500_MTU1_BASE, SZ_4K), + __IO_DEV_DESC(U8500_RTC_BASE, SZ_4K), __IO_DEV_DESC(U8500_SCU_BASE, SZ_4K), __IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K), + __MEM_DEV_DESC(U8500_BOOT_ROM_BASE, SZ_1M), __IO_DEV_DESC(U8500_CLKRST1_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST2_BASE, SZ_4K), @@ -54,19 +60,6 @@ static struct map_desc u8500_io_desc[] __initdata = { __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K), __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K), __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K), -}; - -static struct map_desc u8500_ed_io_desc[] __initdata = { - __IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K), - __IO_DEV_DESC(U8500_CLKRST7_BASE_ED, SZ_8K), -}; - -static struct map_desc u8500_v1_io_desc[] __initdata = { - __IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K), - __IO_DEV_DESC(U8500_PRCMU_TCDM_BASE_V1, SZ_4K), -}; - -static struct map_desc u8500_v2_io_desc[] __initdata = { __IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K), }; @@ -81,13 +74,6 @@ void __init u8500_map_io(void) iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); - if (cpu_is_u8500ed()) - iotable_init(u8500_ed_io_desc, ARRAY_SIZE(u8500_ed_io_desc)); - else if (cpu_is_u8500v1()) - iotable_init(u8500_v1_io_desc, ARRAY_SIZE(u8500_v1_io_desc)); - else if (cpu_is_u8500v2()) - iotable_init(u8500_v2_io_desc, ARRAY_SIZE(u8500_v2_io_desc)); - _PRCMU_BASE = __io_address(U8500_PRCMU_BASE); } @@ -136,36 +122,20 @@ static struct platform_device db8500_prcmu_device = { }; static struct platform_device *platform_devs[] __initdata = { - &u8500_dma40_device, + &u8500_gpio_devs[0], + &u8500_gpio_devs[1], + &u8500_gpio_devs[2], + &u8500_gpio_devs[3], + &u8500_gpio_devs[4], + &u8500_gpio_devs[5], + &u8500_gpio_devs[6], + &u8500_gpio_devs[7], + &u8500_gpio_devs[8], &db8500_pmu_device, &db8500_prcmu_device, + &u8500_wdt_device, }; -static resource_size_t __initdata db8500_gpio_base[] = { - U8500_GPIOBANK0_BASE, - U8500_GPIOBANK1_BASE, - U8500_GPIOBANK2_BASE, - U8500_GPIOBANK3_BASE, - U8500_GPIOBANK4_BASE, - U8500_GPIOBANK5_BASE, - U8500_GPIOBANK6_BASE, - U8500_GPIOBANK7_BASE, - U8500_GPIOBANK8_BASE, -}; - -static void __init db8500_add_gpios(void) -{ - struct nmk_gpio_platform_data pdata = { - /* No custom data yet */ - }; - - if (cpu_is_u8500v2()) - pdata.supports_sleepmode = true; - - dbx500_add_gpios(ARRAY_AND_SIZE(db8500_gpio_base), - IRQ_DB8500_GPIO0, &pdata); -} - static int usb_db8500_rx_dma_cfg[] = { DB8500_DMA_DEV38_USB_OTG_IEP_1_9, DB8500_DMA_DEV37_USB_OTG_IEP_2_10, @@ -193,11 +163,15 @@ static int usb_db8500_tx_dma_cfg[] = { */ void __init u8500_init_devices(void) { - if (cpu_is_u8500ed()) - dma40_u8500ed_fixup(); + ux500_init_devices(); +#ifdef CONFIG_STM_TRACE + /* Early init for STM tracing */ + platform_device_register(&u8500_stm_device); +#endif + + db8500_dma_init(); db8500_add_rtc(); - db8500_add_gpios(); db8500_add_usb(usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); platform_device_register_simple("cpufreq-u8500", -1, NULL, 0); @@ -205,3 +179,82 @@ void __init u8500_init_devices(void) return ; } + +#ifdef CONFIG_SYS_SOC +#define U8500_BB_UID_BASE (U8500_BACKUPRAM1_BASE + 0xFC0) +#define U8500_BB_UID_LENGTH 5 + +static ssize_t ux500_get_machine(char *buf, struct sysfs_soc_info *si) +{ + return sprintf(buf, "DB%2x00\n", dbx500_id.partnumber); +} + +static ssize_t ux500_get_soc_id(char *buf, struct sysfs_soc_info *si) +{ + void __iomem *uid_base; + int i; + ssize_t sz = 0; + + if (dbx500_id.partnumber == 0x85) { + uid_base = __io_address(U8500_BB_UID_BASE); + for (i = 0; i < U8500_BB_UID_LENGTH; i++) + sz += sprintf(buf + sz, "%08x", readl(uid_base + i * sizeof(u32))); + sz += sprintf(buf + sz, "\n"); + } + else { + /* Don't know where it is located for U5500 */ + sz = sprintf(buf, "N/A\n"); + } + + return sz; +} + +static ssize_t ux500_get_revision(char *buf, struct sysfs_soc_info *si) +{ + unsigned int rev = dbx500_id.revision; + + if (rev == 0x01) + return sprintf(buf, "%s\n", "ED"); + else if (rev >= 0xA0) + return sprintf(buf, "%d.%d\n" , (rev >> 4) - 0xA + 1, rev & 0xf); + + return sprintf(buf, "%s", "Unknown\n"); +} + +static ssize_t ux500_get_process(char *buf, struct sysfs_soc_info *si) +{ + if (dbx500_id.process == 0x00) + return sprintf(buf, "Standard\n"); + + return sprintf(buf, "%02xnm\n", dbx500_id.process); +} + +static ssize_t ux500_get_reset_code(char *buf, struct sysfs_soc_info *si) +{ + return sprintf(buf, "0x%04x\n", prcmu_get_reset_code()); +} + +static ssize_t ux500_get_reset_reason(char *buf, struct sysfs_soc_info *si) +{ + return sprintf(buf, "%s\n", + reboot_reason_string(prcmu_get_reset_code())); +} + +static struct sysfs_soc_info soc_info[] = { + SYSFS_SOC_ATTR_CALLBACK("machine", ux500_get_machine), + SYSFS_SOC_ATTR_VALUE("family", "Ux500"), + SYSFS_SOC_ATTR_CALLBACK("soc_id", ux500_get_soc_id), + SYSFS_SOC_ATTR_CALLBACK("revision", ux500_get_revision), + SYSFS_SOC_ATTR_CALLBACK("process", ux500_get_process), + SYSFS_SOC_ATTR_CALLBACK("reset_code", ux500_get_reset_code), + SYSFS_SOC_ATTR_CALLBACK("reset_reason", ux500_get_reset_reason), +}; + +static int __init ux500_sys_soc_init(void) +{ + return register_sysfs_soc(soc_info, ARRAY_SIZE(soc_info)); +} + +module_init(ux500_sys_soc_init); +#endif + |