diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu-db8500.c')
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db8500.c | 123 |
1 files changed, 110 insertions, 13 deletions
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index bcdfe6b1d45..db0bb75e2c7 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -17,18 +17,27 @@ #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/platform_data/pinctrl-nomadik.h> +#include <linux/random.h> #include <asm/pmu.h> #include <asm/mach/map.h> -#include <plat/gpio-nomadik.h> +#include <asm/mach/arch.h> +#include <asm/hardware/gic.h> + #include <mach/hardware.h> #include <mach/setup.h> #include <mach/devices.h> -#include <linux/platform_data/usb-musb-ux500.h> #include <mach/db8500-regs.h> +#include <mach/irqs.h> #include "devices-db8500.h" #include "ste-dma40-db8500.h" +#include "board-mop500.h" /* minimum static i/o mapping required to boot U8500 platforms */ static struct map_desc u8500_uart_io_desc[] __initdata = { @@ -158,7 +167,7 @@ static void __init db8500_add_gpios(struct device *parent) dbx500_add_gpios(parent, ARRAY_AND_SIZE(db8500_gpio_base), IRQ_DB8500_GPIO0, &pdata); - dbx500_add_pinctrl(parent, "pinctrl-db8500"); + dbx500_add_pinctrl(parent, "pinctrl-db8500", U8500_PRCMU_BASE); } static int usb_db8500_rx_dma_cfg[] = { @@ -187,6 +196,8 @@ 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+1), readl((u32 *)uid+2), @@ -214,9 +225,6 @@ struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500) 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; @@ -227,18 +235,15 @@ struct device * __init u8500_init_devices(struct ab8500_platform_data *ab8500) return parent; } +#ifdef CONFIG_MACH_UX500_DT + /* TODO: Once all pieces are DT:ed, remove completely. */ -struct device * __init u8500_of_init_devices(void) +static struct device * __init u8500_of_init_devices(void) { - struct device *parent; - - parent = db8500_soc_device_init(); + struct device *parent = db8500_soc_device_init(); db8500_add_usb(parent, usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg); - platform_device_register_data(parent, - "cpufreq-u8500", -1, NULL, 0); - u8500_dma40_device.dev.parent = parent; /* @@ -251,3 +256,95 @@ struct device * __init u8500_of_init_devices(void) return 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("arm,pl011", 0x80120000, "uart0", &uart0_plat), + OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", &uart1_plat), + OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", &uart2_plat), + OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0", &ssp0_plat), + OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0", &mop500_sdi0_data), + OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1", &mop500_sdi1_data), + OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2", &mop500_sdi2_data), + OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4", &mop500_sdi4_data), + /* Requires clock name bindings. */ + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e000, "gpio.0", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e080, "gpio.1", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e000, "gpio.2", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e080, "gpio.3", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e100, "gpio.4", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e180, "gpio.5", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL), + OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL), + OF_DEV_AUXDATA("st,nomadik-i2c", 0x80004000, "nmk-i2c.0", NULL), + OF_DEV_AUXDATA("st,nomadik-i2c", 0x80122000, "nmk-i2c.1", NULL), + OF_DEV_AUXDATA("st,nomadik-i2c", 0x80128000, "nmk-i2c.2", NULL), + OF_DEV_AUXDATA("st,nomadik-i2c", 0x80110000, "nmk-i2c.3", NULL), + OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL), + /* Requires device name bindings. */ + OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL), + /* Requires clock name and 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), + {}, +}; + +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"}, + { }, +}; + +static void __init u8500_init_machine(void) +{ + struct device *parent = NULL; + + /* Pinmaps must be in place before devices register */ + if (of_machine_is_compatible("st-ericsson,mop500")) + mop500_pinmaps_init(); + else if (of_machine_is_compatible("calaosystems,snowball-a9500")) + snowball_pinmaps_init(); + else if (of_machine_is_compatible("st-ericsson,hrefv60+")) + hrefv60_pinmaps_init(); + else if (of_machine_is_compatible("st-ericsson,ccu9540")) {} + /* TODO: Add pinmaps for ccu9540 board. */ + + /* TODO: Export SoC, USB, cpu-freq and DMA40 */ + parent = u8500_of_init_devices(); + + /* automatically probe child nodes of db8500 device */ + of_platform_populate(NULL, u8500_local_bus_nodes, u8500_auxdata_lookup, parent); +} + +static const char * stericsson_dt_platform_compat[] = { + "st-ericsson,u8500", + "st-ericsson,u8540", + "st-ericsson,u9500", + "st-ericsson,u9540", + NULL, +}; + +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 */ + .timer = &ux500_timer, + .handle_irq = gic_handle_irq, + .init_machine = u8500_init_machine, + .init_late = NULL, + .dt_compat = stericsson_dt_platform_compat, +MACHINE_END + +#endif |