diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu-db8500.c')
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db8500.c | 224 |
1 files changed, 89 insertions, 135 deletions
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 33275eb4c68..fa308f07fae 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -16,18 +16,32 @@ #include <linux/irq.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/mfd/abx500/ab8500.h> +#include <linux/mfd/dbx500-prcmu.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/regulator/machine.h> +#include <linux/random.h> -#include <asm/mach/map.h> #include <asm/pmu.h> -#include <plat/gpio-nomadik.h> -#include <mach/hardware.h> -#include <mach/setup.h> -#include <mach/devices.h> -#include <mach/usb.h> -#include <mach/db8500-regs.h> +#include <asm/mach/map.h> + +#include "setup.h" + +#include "board-mop500-regulators.h" +#include "board-mop500.h" +#include "db8500-regs.h" +#include "id.h" + +struct ab8500_platform_data ab8500_platdata = { + .regulator = &ab8500_regulator_plat_data, +}; -#include "devices-db8500.h" -#include "ste-dma40-db8500.h" +struct prcmu_pdata db8500_prcmu_pdata = { + .ab_platdata = &ab8500_platdata, + .version_offset = DB8500_PRCMU_FW_VERSION_OFFSET, + .legacy_offset = DB8500_PRCMU_LEGACY_OFFSET, +}; /* minimum static i/o mapping required to boot U8500 platforms */ static struct map_desc u8500_uart_io_desc[] __initdata = { @@ -79,22 +93,12 @@ void __init u8500_map_io(void) iotable_init(u8500_common_io_desc, ARRAY_SIZE(u8500_common_io_desc)); - if (cpu_is_u9540()) + if (cpu_is_ux540_family()) iotable_init(u9540_io_desc, ARRAY_SIZE(u9540_io_desc)); else iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); - - _PRCMU_BASE = __io_address(U8500_PRCMU_BASE); } -static struct resource db8500_pmu_resources[] = { - [0] = { - .start = IRQ_DB8500_PMU, - .end = IRQ_DB8500_PMU, - .flags = IORESOURCE_IRQ, - }, -}; - /* * The PMU IRQ lines of two cores are wired together into a single interrupt. * Bounce the interrupt to the other core if it's not ours. @@ -115,84 +119,18 @@ static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler) return ret; } -static struct arm_pmu_platdata db8500_pmu_platdata = { +struct arm_pmu_platdata db8500_pmu_platdata = { .handle_irq = db8500_pmu_handler, }; -static struct platform_device db8500_pmu_device = { - .name = "arm-pmu", - .id = ARM_PMU_DEVICE_CPU, - .num_resources = ARRAY_SIZE(db8500_pmu_resources), - .resource = db8500_pmu_resources, - .dev.platform_data = &db8500_pmu_platdata, -}; - -static struct platform_device db8500_prcmu_device = { - .name = "db8500-prcmu", -}; - -static struct platform_device *platform_devs[] __initdata = { - &u8500_dma40_device, - &db8500_pmu_device, - &db8500_prcmu_device, -}; - -static struct platform_device *of_platform_devs[] __initdata = { - &u8500_dma40_device, - &db8500_pmu_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(struct device *parent) -{ - struct nmk_gpio_platform_data pdata = { - .supports_sleepmode = true, - }; - - dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base), - IRQ_DB8500_GPIO0, &pdata); - dbx500_add_pinctrl(parent, "pinctrl-db8500"); -} - -static int usb_db8500_rx_dma_cfg[] = { - DB8500_DMA_DEV38_USB_OTG_IEP_1_9, - DB8500_DMA_DEV37_USB_OTG_IEP_2_10, - DB8500_DMA_DEV36_USB_OTG_IEP_3_11, - DB8500_DMA_DEV19_USB_OTG_IEP_4_12, - DB8500_DMA_DEV18_USB_OTG_IEP_5_13, - DB8500_DMA_DEV17_USB_OTG_IEP_6_14, - DB8500_DMA_DEV16_USB_OTG_IEP_7_15, - DB8500_DMA_DEV39_USB_OTG_IEP_8 -}; - -static int usb_db8500_tx_dma_cfg[] = { - DB8500_DMA_DEV38_USB_OTG_OEP_1_9, - DB8500_DMA_DEV37_USB_OTG_OEP_2_10, - DB8500_DMA_DEV36_USB_OTG_OEP_3_11, - DB8500_DMA_DEV19_USB_OTG_OEP_4_12, - DB8500_DMA_DEV18_USB_OTG_OEP_5_13, - DB8500_DMA_DEV17_USB_OTG_OEP_6_14, - DB8500_DMA_DEV16_USB_OTG_OEP_7_15, - DB8500_DMA_DEV39_USB_OTG_OEP_8 -}; - static const char *db8500_read_soc_id(void) { void __iomem *uid = __io_address(U8500_BB_UID_BASE); + /* Throw these device-specific numbers into the entropy pool */ + add_device_randomness(uid, 0x14); return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x", - readl((u32 *)uid+1), + readl((u32 *)uid+0), readl((u32 *)uid+1), readl((u32 *)uid+2), readl((u32 *)uid+3), readl((u32 *)uid+4)); } @@ -204,55 +142,71 @@ static struct device * __init db8500_soc_device_init(void) return ux500_soc_device_init(soc_id); } -/* - * This function is called from the board init - */ -struct device * __init u8500_init_devices(void) -{ - struct device *parent; - int i; - - parent = db8500_soc_device_init(); - - db8500_add_rtc(parent); - db8500_add_gpios(parent); - db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); - - platform_device_register_data(parent, - "cpufreq-u8500", -1, NULL, 0); - - for (i = 0; i < ARRAY_SIZE(platform_devs); i++) - platform_devs[i]->dev.parent = parent; +static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { + /* Requires call-back bindings. */ + OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata), + /* Requires DMA bindings. */ + OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000, + "ux500-msp-i2s.0", &msp0_platform_data), + OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000, + "ux500-msp-i2s.1", &msp1_platform_data), + OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000, + "ux500-msp-i2s.2", &msp2_platform_data), + OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000, + "ux500-msp-i2s.3", &msp3_platform_data), + /* Requires non-DT:able platform data. */ + OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu", + &db8500_prcmu_pdata), + OF_DEV_AUXDATA("stericsson,ux500-cryp", 0xa03cb000, "cryp1", NULL), + OF_DEV_AUXDATA("stericsson,ux500-hash", 0xa03c2000, "hash1", NULL), + OF_DEV_AUXDATA("stericsson,snd-soc-mop500", 0, "snd-soc-mop500.0", + NULL), + {}, +}; - platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs)); +static struct of_dev_auxdata u8540_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu", + &db8500_prcmu_pdata), + {}, +}; - return parent; -} +static const struct of_device_id u8500_local_bus_nodes[] = { + /* only create devices below soc node */ + { .compatible = "stericsson,db8500", }, + { .compatible = "stericsson,db8500-prcmu", }, + { .compatible = "simple-bus"}, + { }, +}; -/* TODO: Once all pieces are DT:ed, remove completely. */ -struct device * __init u8500_of_init_devices(void) +static void __init u8500_init_machine(void) { - struct device *parent; - int i; - - parent = db8500_soc_device_init(); - - db8500_add_rtc(parent); - db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); - - platform_device_register_data(parent, - "cpufreq-u8500", -1, NULL, 0); + struct device *parent = db8500_soc_device_init(); - for (i = 0; i < ARRAY_SIZE(of_platform_devs); i++) - of_platform_devs[i]->dev.parent = parent; + /* automatically probe child nodes of dbx5x0 devices */ + if (of_machine_is_compatible("st-ericsson,u8540")) + of_platform_populate(NULL, u8500_local_bus_nodes, + u8540_auxdata_lookup, parent); + else + of_platform_populate(NULL, u8500_local_bus_nodes, + u8500_auxdata_lookup, parent); +} - /* - * Devices to be DT:ed: - * u8500_dma40_device = todo - * db8500_pmu_device = todo - * db8500_prcmu_device = done - */ - platform_add_devices(of_platform_devs, ARRAY_SIZE(of_platform_devs)); +static const char * stericsson_dt_platform_compat[] = { + "st-ericsson,u8500", + "st-ericsson,u8540", + "st-ericsson,u9500", + "st-ericsson,u9540", + NULL, +}; - return parent; -} +DT_MACHINE_START(U8500_DT, "ST-Ericsson Ux5x0 platform (Device Tree Support)") + .smp = smp_ops(ux500_smp_ops), + .map_io = u8500_map_io, + .init_irq = ux500_init_irq, + /* we re-use nomadik timer here */ + .init_time = ux500_timer_init, + .init_machine = u8500_init_machine, + .init_late = NULL, + .dt_compat = stericsson_dt_platform_compat, + .restart = ux500_restart, +MACHINE_END |