/* * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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, }; static struct pl061_platform_data gpio1_plat_data = { .gpio_base = 8, }; static struct pl061_platform_data gpio2_plat_data = { .gpio_base = 16, }; 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 } #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 } #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 */ 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 */ 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, &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_restart(char 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 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); } } MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ .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, .handle_irq = gic_handle_irq, .init_machine = realview_pb1176_init, #ifdef CONFIG_ZONE_DMA .dma_zone_size = SZ_256M, #endif .restart = realview_pb1176_restart, MACHINE_END