diff options
Diffstat (limited to 'arch/arm/mach-realview/realview_pb1176.c')
| -rw-r--r-- | arch/arm/mach-realview/realview_pb1176.c | 175 |
1 files changed, 101 insertions, 74 deletions
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c index eab6070f66d..b0e0dcaed94 100644 --- a/arch/arm/mach-realview/realview_pb1176.c +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -21,20 +21,23 @@ #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/sysdev.h> +#include <linux/device.h> #include <linux/amba/bus.h> #include <linux/amba/pl061.h> #include <linux/amba/mmci.h> #include <linux/amba/pl022.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> #include <linux/io.h> +#include <linux/irqchip/arm-gic.h> +#include <linux/platform_data/clk-realview.h> +#include <linux/reboot.h> +#include <linux/memblock.h> #include <mach/hardware.h> #include <asm/irq.h> -#include <asm/leds.h> #include <asm/mach-types.h> -#include <asm/pmu.h> #include <asm/pgtable.h> -#include <asm/hardware/gic.h> #include <asm/hardware/cache-l2x0.h> #include <asm/mach/arch.h> @@ -111,17 +114,14 @@ static void __init realview_pb1176_map_io(void) static struct pl061_platform_data gpio0_plat_data = { .gpio_base = 0, - .irq_base = -1, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, - .irq_base = -1, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, - .irq_base = -1, }; static struct pl022_ssp_controller ssp0_plat_data = { @@ -133,50 +133,50 @@ static struct pl022_ssp_controller ssp0_plat_data = { /* * RealView PB1176 AMBA devices */ -#define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ } -#define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ } -#define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ } +#define GPIO2_IRQ { IRQ_PB1176_GPIO2 } +#define GPIO3_IRQ { IRQ_PB1176_GPIO3 } +#define AACI_IRQ { IRQ_PB1176_AACI } #define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B } -#define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ } -#define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ } -#define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ } -#define MPMC_IRQ { NO_IRQ, NO_IRQ } -#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ } -#define SCTL_IRQ { NO_IRQ, NO_IRQ } -#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ } -#define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ } -#define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ } -#define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ } -#define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ } -#define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ } -#define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ } -#define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ } -#define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ } -#define PB1176_UART4_IRQ { IRQ_PB1176_UART4, NO_IRQ } -#define PB1176_SSP_IRQ { IRQ_DC1176_SSP, NO_IRQ } +#define KMI0_IRQ { IRQ_PB1176_KMI0 } +#define KMI1_IRQ { IRQ_PB1176_KMI1 } +#define PB1176_SMC_IRQ { } +#define MPMC_IRQ { } +#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD } +#define SCTL_IRQ { } +#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG } +#define PB1176_GPIO0_IRQ { IRQ_DC1176_GPIO0 } +#define GPIO1_IRQ { IRQ_PB1176_GPIO1 } +#define PB1176_RTC_IRQ { IRQ_DC1176_RTC } +#define SCI_IRQ { IRQ_PB1176_SCI } +#define PB1176_UART0_IRQ { IRQ_DC1176_UART0 } +#define PB1176_UART1_IRQ { IRQ_DC1176_UART1 } +#define PB1176_UART2_IRQ { IRQ_DC1176_UART2 } +#define PB1176_UART3_IRQ { IRQ_DC1176_UART3 } +#define PB1176_UART4_IRQ { IRQ_PB1176_UART4 } +#define PB1176_SSP_IRQ { IRQ_DC1176_SSP } /* FPGA Primecells */ -AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL); -AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); -AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); -AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); -AMBA_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL); +APB_DEVICE(aaci, "fpga:aaci", AACI, NULL); +APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data); +APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL); +APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL); +APB_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL); /* DevChip Primecells */ -AMBA_DEVICE(smc, "dev:smc", PB1176_SMC, NULL); -AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); -AMBA_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL); -AMBA_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data); -AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); -AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); -AMBA_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL); -AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); -AMBA_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL); -AMBA_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL); -AMBA_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL); -AMBA_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL); -AMBA_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data); -AMBA_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data); +AHB_DEVICE(smc, "dev:smc", PB1176_SMC, NULL); +AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL); +APB_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL); +APB_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data); +APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data); +APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data); +APB_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL); +APB_DEVICE(sci0, "dev:sci0", SCI, NULL); +APB_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL); +APB_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL); +APB_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL); +APB_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL); +APB_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data); +AHB_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data); static struct amba_device *amba_devs[] __initdata = { &uart0_device, @@ -204,22 +204,48 @@ static struct amba_device *amba_devs[] __initdata = { * RealView PB1176 platform devices */ static struct resource realview_pb1176_flash_resources[] = { - [0] = { + { .start = REALVIEW_PB1176_FLASH_BASE, .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }, - [1] = { +#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH + { .start = REALVIEW_PB1176_SEC_FLASH_BASE, .end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }, -}; -#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH -#define PB1176_FLASH_BLOCKS 2 -#else -#define PB1176_FLASH_BLOCKS 1 #endif +}; + +static struct physmap_flash_data pb1176_rom_pdata = { + .probe_type = "map_rom", + .width = 4, + .nr_parts = 0, +}; + +static struct resource pb1176_rom_resources[] = { + /* + * This exposes the PB1176 DevChip ROM as an MTD ROM mapping. + * The reference manual states that this is actually a pseudo-ROM + * programmed in NVRAM. + */ + { + .start = REALVIEW_DC1176_ROM_BASE, + .end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device pb1176_rom_device = { + .name = "physmap-flash", + .id = -1, + .num_resources = ARRAY_SIZE(pb1176_rom_resources), + .resource = pb1176_rom_resources, + .dev = { + .platform_data = &pb1176_rom_pdata, + }, +}; static struct resource realview_pb1176_smsc911x_resources[] = { [0] = { @@ -255,7 +281,7 @@ static struct resource pmu_resource = { static struct platform_device pmu_device = { .name = "arm-pmu", - .id = ARM_PMU_DEVICE_CPU, + .id = -1, .num_resources = 1, .resource = &pmu_resource, }; @@ -301,31 +327,25 @@ static void __init realview_pb1176_timer_init(void) timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; + realview_clk_init(__io_address(REALVIEW_SYS_BASE), true); realview_timer_init(IRQ_DC1176_TIMER0); } -static struct sys_timer realview_pb1176_timer = { - .init = realview_pb1176_timer_init, -}; - -static void realview_pb1176_reset(char mode) +static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd) { void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL); void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK); __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); __raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl); + dsb(); } -static void realview_pb1176_fixup(struct machine_desc *mdesc, - struct tag *tags, char **from, - struct meminfo *meminfo) +static void realview_pb1176_fixup(struct tag *tags, char **from) { /* * RealView PB1176 only has 128MB of RAM mapped at 0. */ - meminfo->bank[0].start = 0; - meminfo->bank[0].size = SZ_128M; - meminfo->nr_banks = 1; + memblock_add(0, SZ_128M); } static void __init realview_pb1176_init(void) @@ -333,36 +353,43 @@ static void __init realview_pb1176_init(void) int i; #ifdef CONFIG_CACHE_L2X0 - /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ + /* + * The PL220 needs to be manually configured as the hardware + * doesn't report the correct sizes. + * 128kB (16kB/way), 8-way associativity, event monitor and + * parity enabled, ignore share bit, no force write allocate + * Bits: .... ...0 0111 0011 0000 .... .... .... + */ l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); #endif realview_flash_register(realview_pb1176_flash_resources, - PB1176_FLASH_BLOCKS); + ARRAY_SIZE(realview_pb1176_flash_resources)); + platform_device_register(&pb1176_rom_device); realview_eth_register(NULL, realview_pb1176_smsc911x_resources); platform_device_register(&realview_i2c_device); realview_usb_register(realview_pb1176_isp1761_resources); platform_device_register(&pmu_device); platform_device_register(&char_lcd_device); + platform_device_register(&realview_leds_device); for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { struct amba_device *d = amba_devs[i]; amba_device_register(d, &iomem_resource); } - -#ifdef CONFIG_LEDS - leds_event = realview_leds_event; -#endif - realview_reset = realview_pb1176_reset; } MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ - .boot_params = PLAT_PHYS_OFFSET + 0x00000100, + .atag_offset = 0x100, .fixup = realview_pb1176_fixup, .map_io = realview_pb1176_map_io, .init_early = realview_init_early, .init_irq = gic_init_irq, - .timer = &realview_pb1176_timer, + .init_time = realview_pb1176_timer_init, .init_machine = realview_pb1176_init, +#ifdef CONFIG_ZONE_DMA + .dma_zone_size = SZ_256M, +#endif + .restart = realview_pb1176_restart, MACHINE_END |