| /* |
| * linux/arch/arm/mach-realview/realview_pb1176.c |
| * |
| * Copyright (C) 2008 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 |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/sysdev.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 <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> |
| #include <asm/mach/flash.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/time.h> |
| |
| #include <mach/board-pb1176.h> |
| #include <mach/irqs.h> |
| |
| #include "core.h" |
| |
| static struct map_desc realview_pb1176_io_desc[] __initdata = { |
| { |
| .virtual = IO_ADDRESS(REALVIEW_SYS_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_SYS_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_CPU_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_DIST_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER0_1_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE), |
| .length = SZ_8K, |
| .type = MT_DEVICE, |
| }, |
| #ifdef CONFIG_DEBUG_LL |
| { |
| .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE), |
| .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE), |
| .length = SZ_4K, |
| .type = MT_DEVICE, |
| }, |
| #endif |
| }; |
| |
| static void __init realview_pb1176_map_io(void) |
| { |
| iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc)); |
| } |
| |
| 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 = { |
| .bus_id = 0, |
| .enable_dma = 0, |
| .num_chipselect = 1, |
| }; |
| |
| /* |
| * 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 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 } |
| |
| /* 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); |
| |
| /* 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); |
| |
| static struct amba_device *amba_devs[] __initdata = { |
| &uart0_device, |
| &uart1_device, |
| &uart2_device, |
| &uart3_device, |
| &uart4_device, |
| &smc_device, |
| &clcd_device, |
| &sctl_device, |
| &wdog_device, |
| &gpio0_device, |
| &gpio1_device, |
| &gpio2_device, |
| &rtc_device, |
| &sci0_device, |
| &ssp0_device, |
| &aaci_device, |
| &mmc0_device, |
| &kmi0_device, |
| &kmi1_device, |
| }; |
| |
| /* |
| * RealView PB1176 platform devices |
| */ |
| static struct resource realview_pb1176_flash_resources[] = { |
| { |
| .start = REALVIEW_PB1176_FLASH_BASE, |
| .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| #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, |
| }, |
| #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] = { |
| .start = REALVIEW_PB1176_ETH_BASE, |
| .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = IRQ_PB1176_ETH, |
| .end = IRQ_PB1176_ETH, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct resource realview_pb1176_isp1761_resources[] = { |
| [0] = { |
| .start = REALVIEW_PB1176_USB_BASE, |
| .end = REALVIEW_PB1176_USB_BASE + SZ_128K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = IRQ_PB1176_USB, |
| .end = IRQ_PB1176_USB, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct resource pmu_resource = { |
| .start = IRQ_DC1176_CORE_PMU, |
| .end = IRQ_DC1176_CORE_PMU, |
| .flags = IORESOURCE_IRQ, |
| }; |
| |
| static struct platform_device pmu_device = { |
| .name = "arm-pmu", |
| .id = ARM_PMU_DEVICE_CPU, |
| .num_resources = 1, |
| .resource = &pmu_resource, |
| }; |
| |
| static struct resource char_lcd_resources[] = { |
| { |
| .start = REALVIEW_CHAR_LCD_BASE, |
| .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1), |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = IRQ_PB1176_CHARLCD, |
| .end = IRQ_PB1176_CHARLCD, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device char_lcd_device = { |
| .name = "arm-charlcd", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(char_lcd_resources), |
| .resource = char_lcd_resources, |
| }; |
| |
| static void __init gic_init_irq(void) |
| { |
| /* ARM1176 DevChip GIC, primary */ |
| gic_init(0, IRQ_DC1176_GIC_START, |
| __io_address(REALVIEW_DC1176_GIC_DIST_BASE), |
| __io_address(REALVIEW_DC1176_GIC_CPU_BASE)); |
| |
| /* board GIC, secondary */ |
| gic_init(1, IRQ_PB1176_GIC_START, |
| __io_address(REALVIEW_PB1176_GIC_DIST_BASE), |
| __io_address(REALVIEW_PB1176_GIC_CPU_BASE)); |
| gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1); |
| } |
| |
| static void __init realview_pb1176_timer_init(void) |
| { |
| timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE); |
| timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20; |
| timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); |
| timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; |
| |
| 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) |
| { |
| 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); |
| } |
| |
| static void realview_pb1176_fixup(struct tag *tags, char **from, |
| struct meminfo *meminfo) |
| { |
| /* |
| * 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; |
| } |
| |
| static void __init realview_pb1176_init(void) |
| { |
| int i; |
| |
| #ifdef CONFIG_CACHE_L2X0 |
| /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ |
| l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); |
| #endif |
| |
| realview_flash_register(realview_pb1176_flash_resources, |
| 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); |
| |
| 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, |
| .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_machine = realview_pb1176_init, |
| #ifdef CONFIG_ZONE_DMA |
| .dma_zone_size = SZ_256M, |
| #endif |
| MACHINE_END |