/* * linux/arch/arm/mach-realview/realview_eb.c * * Copyright (C) 2004 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 #include "core.h" static struct map_desc realview_eb_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_EB_GIC_CPU_BASE), .pfn = __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE), .length = SZ_4K, .type = MT_DEVICE, }, { .virtual = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE), .pfn = __phys_to_pfn(REALVIEW_EB_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_EB_TIMER0_1_BASE), .pfn = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE), .length = SZ_4K, .type = MT_DEVICE, }, { .virtual = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE), .pfn = __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE), .length = SZ_4K, .type = MT_DEVICE, }, #ifdef CONFIG_DEBUG_LL { .virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE), .pfn = __phys_to_pfn(REALVIEW_EB_UART0_BASE), .length = SZ_4K, .type = MT_DEVICE, } #endif }; static struct map_desc realview_eb11mp_io_desc[] __initdata = { { .virtual = IO_ADDRESS(REALVIEW_EB11MP_PRIV_MEM_BASE), .pfn = __phys_to_pfn(REALVIEW_EB11MP_PRIV_MEM_BASE), .length = REALVIEW_EB11MP_PRIV_MEM_SIZE, .type = MT_DEVICE, }, { .virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE), .pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE), .length = SZ_8K, .type = MT_DEVICE, } }; static void __init realview_eb_map_io(void) { iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc)); if (core_tile_eb11mp() || core_tile_a9mp()) iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_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 EB AMBA devices */ /* * These devices are connected via the core APB bridge */ #define GPIO2_IRQ { IRQ_EB_GPIO2 } #define GPIO3_IRQ { IRQ_EB_GPIO3 } #define AACI_IRQ { IRQ_EB_AACI } #define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B } #define KMI0_IRQ { IRQ_EB_KMI0 } #define KMI1_IRQ { IRQ_EB_KMI1 } /* * These devices are connected directly to the multi-layer AHB switch */ #define EB_SMC_IRQ { } #define MPMC_IRQ { } #define EB_CLCD_IRQ { IRQ_EB_CLCD } #define DMAC_IRQ { IRQ_EB_DMA } /* * These devices are connected via the core APB bridge */ #define SCTL_IRQ { } #define EB_WATCHDOG_IRQ { IRQ_EB_WDOG } #define EB_GPIO0_IRQ { IRQ_EB_GPIO0 } #define GPIO1_IRQ { IRQ_EB_GPIO1 } #define EB_RTC_IRQ { IRQ_EB_RTC } /* * These devices are connected via the DMA APB bridge */ #define SCI_IRQ { IRQ_EB_SCI } #define EB_UART0_IRQ { IRQ_EB_UART0 } #define EB_UART1_IRQ { IRQ_EB_UART1 } #define EB_UART2_IRQ { IRQ_EB_UART2 } #define EB_UART3_IRQ { IRQ_EB_UART3 } #define EB_SSP_IRQ { IRQ_EB_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(uart3, "fpga:uart3", EB_UART3, NULL); /* DevChip Primecells */ AHB_DEVICE(smc, "dev:smc", EB_SMC, NULL); AHB_DEVICE(clcd, "dev:clcd", EB_CLCD, &clcd_plat_data); AHB_DEVICE(dmac, "dev:dmac", DMAC, NULL); AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL); APB_DEVICE(wdog, "dev:wdog", EB_WATCHDOG, NULL); APB_DEVICE(gpio0, "dev:gpio0", EB_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", EB_RTC, NULL); APB_DEVICE(sci0, "dev:sci0", SCI, NULL); APB_DEVICE(uart0, "dev:uart0", EB_UART0, NULL); APB_DEVICE(uart1, "dev:uart1", EB_UART1, NULL); APB_DEVICE(uart2, "dev:uart2", EB_UART2, NULL); APB_DEVICE(ssp0, "dev:ssp0", EB_SSP, &ssp0_plat_data); static struct amba_device *amba_devs[] __initdata = { &dmac_device, &uart0_device, &uart1_device, &uart2_device, &uart3_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 EB platform devices */ static struct resource realview_eb_flash_resource = { .start = REALVIEW_EB_FLASH_BASE, .end = REALVIEW_EB_FLASH_BASE + REALVIEW_EB_FLASH_SIZE - 1, .flags = IORESOURCE_MEM, }; static struct resource realview_eb_eth_resources[] = { [0] = { .start = REALVIEW_EB_ETH_BASE, .end = REALVIEW_EB_ETH_BASE + SZ_64K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_EB_ETH, .end = IRQ_EB_ETH, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, }, }; /* * Detect and register the correct Ethernet device. RealView/EB rev D * platforms use the newer SMSC LAN9118 Ethernet chip */ static int eth_device_register(void) { void __iomem *eth_addr = ioremap(REALVIEW_EB_ETH_BASE, SZ_4K); const char *name = NULL; u32 idrev; if (!eth_addr) return -ENOMEM; idrev = readl(eth_addr + 0x50); if ((idrev & 0xFFFF0000) != 0x01180000) /* SMSC LAN9118 not present, use LAN91C111 instead */ name = "smc91x"; iounmap(eth_addr); return realview_eth_register(name, realview_eb_eth_resources); } static struct resource realview_eb_isp1761_resources[] = { [0] = { .start = REALVIEW_EB_USB_BASE, .end = REALVIEW_EB_USB_BASE + SZ_128K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_EB_USB, .end = IRQ_EB_USB, .flags = IORESOURCE_IRQ, }, }; static struct resource pmu_resources[] = { [0] = { .start = IRQ_EB11MP_PMU_CPU0, .end = IRQ_EB11MP_PMU_CPU0, .flags = IORESOURCE_IRQ, }, [1] = { .start = IRQ_EB11MP_PMU_CPU1, .end = IRQ_EB11MP_PMU_CPU1, .flags = IORESOURCE_IRQ, }, [2] = { .start = IRQ_EB11MP_PMU_CPU2, .end = IRQ_EB11MP_PMU_CPU2, .flags = IORESOURCE_IRQ, }, [3] = { .start = IRQ_EB11MP_PMU_CPU3, .end = IRQ_EB11MP_PMU_CPU3, .flags = IORESOURCE_IRQ, }, }; static struct platform_device pmu_device = { .id = -1, .num_resources = ARRAY_SIZE(pmu_resources), .resource = pmu_resources, }; static struct resource char_lcd_resources[] = { { .start = REALVIEW_CHAR_LCD_BASE, .end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1), .flags = IORESOURCE_MEM, }, { .start = IRQ_EB_CHARLCD, .end = IRQ_EB_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) { if (core_tile_eb11mp() || core_tile_a9mp()) { unsigned int pldctrl; /* new irq mode */ writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); pldctrl |= 0x00800000; writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); /* core tile GIC, primary */ gic_init(0, 29, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), __io_address(REALVIEW_EB11MP_GIC_CPU_BASE)); #ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB /* board GIC, secondary */ gic_init(1, 96, __io_address(REALVIEW_EB_GIC_DIST_BASE), __io_address(REALVIEW_EB_GIC_CPU_BASE)); gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1); #endif } else { /* board GIC, primary */ gic_init(0, 29, __io_address(REALVIEW_EB_GIC_DIST_BASE), __io_address(REALVIEW_EB_GIC_CPU_BASE)); } } /* * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile */ static void realview_eb11mp_fixup(void) { /* AMBA devices */ dmac_device.irq[0] = IRQ_EB11MP_DMA; uart0_device.irq[0] = IRQ_EB11MP_UART0; uart1_device.irq[0] = IRQ_EB11MP_UART1; uart2_device.irq[0] = IRQ_EB11MP_UART2; uart3_device.irq[0] = IRQ_EB11MP_UART3; clcd_device.irq[0] = IRQ_EB11MP_CLCD; wdog_device.irq[0] = IRQ_EB11MP_WDOG; gpio0_device.irq[0] = IRQ_EB11MP_GPIO0; gpio1_device.irq[0] = IRQ_EB11MP_GPIO1; gpio2_device.irq[0] = IRQ_EB11MP_GPIO2; rtc_device.irq[0] = IRQ_EB11MP_RTC; sci0_device.irq[0] = IRQ_EB11MP_SCI; ssp0_device.irq[0] = IRQ_EB11MP_SSP; aaci_device.irq[0] = IRQ_EB11MP_AACI; mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A; mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B; kmi0_device.irq[0] = IRQ_EB11MP_KMI0; kmi1_device.irq[0] = IRQ_EB11MP_KMI1; /* platform devices */ realview_eb_eth_resources[1].start = IRQ_EB11MP_ETH; realview_eb_eth_resources[1].end = IRQ_EB11MP_ETH; realview_eb_isp1761_resources[1].start = IRQ_EB11MP_USB; realview_eb_isp1761_resources[1].end = IRQ_EB11MP_USB; } #ifdef CONFIG_HAVE_ARM_TWD static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, REALVIEW_EB11MP_TWD_BASE, IRQ_LOCALTIMER); static void __init realview_eb_twd_init(void) { if (core_tile_eb11mp() || core_tile_a9mp()) { int err = twd_local_timer_register(&twd_local_timer); if (err) pr_err("twd_local_timer_register failed %d\n", err); } } #else #define realview_eb_twd_init() do { } while(0) #endif static void __init realview_eb_timer_init(void) { unsigned int timer_irq; timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE); timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20; timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE); timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20; if (core_tile_eb11mp() || core_tile_a9mp()) timer_irq = IRQ_EB11MP_TIMER0_1; else timer_irq = IRQ_EB_TIMER0_1; realview_clk_init(__io_address(REALVIEW_SYS_BASE), false); realview_timer_init(timer_irq); realview_eb_twd_init(); } static void realview_eb_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); /* * To reset, we hit the on-board reset register * in the system FPGA */ __raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl); if (core_tile_eb11mp()) __raw_writel(0x0008, reset_ctrl); dsb(); } static void __init realview_eb_init(void) { int i; if (core_tile_eb11mp() || core_tile_a9mp()) { realview_eb11mp_fixup(); #ifdef CONFIG_CACHE_L2X0 /* * The PL220 needs to be manually configured as the hardware * doesn't report the correct sizes. * 1MB (128KB/way), 8-way associativity, event monitor and * parity enabled, ignore share bit, no force write allocate * Bits: .... ...0 0111 1001 0000 .... .... .... */ l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff); /* * due to a bug in the l220 cache controller, we must not call * the sync function. stub it out here instead! */ outer_cache.sync = NULL; #endif pmu_device.name = core_tile_a9mp() ? "armv7-pmu" : "armv6-pmu"; platform_device_register(&pmu_device); } realview_flash_register(&realview_eb_flash_resource, 1); platform_device_register(&realview_i2c_device); platform_device_register(&char_lcd_device); platform_device_register(&realview_leds_device); eth_device_register(); realview_usb_register(realview_eb_isp1761_resources); 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_EB, "ARM-RealView EB") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ .atag_offset = 0x100, .smp = smp_ops(realview_smp_ops), .fixup = realview_fixup, .map_io = realview_eb_map_io, .init_early = realview_init_early, .init_irq = gic_init_irq, .init_time = realview_eb_timer_init, .init_machine = realview_eb_init, #ifdef CONFIG_ZONE_DMA .dma_zone_size = SZ_256M, #endif .restart = realview_eb_restart, MACHINE_END