/* * linux/arch/arm/mach-realview/realview_pba8.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/io.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/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/time.h> #include <mach/hardware.h> #include <mach/board-pba8.h> #include <mach/irqs.h> #include "core.h" static struct map_desc realview_pba8_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_PBA8_GIC_CPU_BASE), .pfn = __phys_to_pfn(REALVIEW_PBA8_GIC_CPU_BASE), .length = SZ_4K, .type = MT_DEVICE, }, { .virtual = IO_ADDRESS(REALVIEW_PBA8_GIC_DIST_BASE), .pfn = __phys_to_pfn(REALVIEW_PBA8_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_PBA8_TIMER0_1_BASE), .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER0_1_BASE), .length = SZ_4K, .type = MT_DEVICE, }, { .virtual = IO_ADDRESS(REALVIEW_PBA8_TIMER2_3_BASE), .pfn = __phys_to_pfn(REALVIEW_PBA8_TIMER2_3_BASE), .length = SZ_4K, .type = MT_DEVICE, }, #ifdef CONFIG_PCI { .virtual = PCIX_UNIT_BASE, .pfn = __phys_to_pfn(REALVIEW_PBA8_PCI_BASE), .length = REALVIEW_PBA8_PCI_BASE_SIZE, .type = MT_DEVICE }, #endif #ifdef CONFIG_DEBUG_LL { .virtual = IO_ADDRESS(REALVIEW_PBA8_UART0_BASE), .pfn = __phys_to_pfn(REALVIEW_PBA8_UART0_BASE), .length = SZ_4K, .type = MT_DEVICE, }, #endif }; static void __init realview_pba8_map_io(void) { iotable_init(realview_pba8_io_desc, ARRAY_SIZE(realview_pba8_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 PBA8Core AMBA devices */ #define GPIO2_IRQ { IRQ_PBA8_GPIO2, NO_IRQ } #define GPIO2_DMA { 0, 0 } #define GPIO3_IRQ { IRQ_PBA8_GPIO3, NO_IRQ } #define GPIO3_DMA { 0, 0 } #define AACI_IRQ { IRQ_PBA8_AACI, NO_IRQ } #define AACI_DMA { 0x80, 0x81 } #define MMCI0_IRQ { IRQ_PBA8_MMCI0A, IRQ_PBA8_MMCI0B } #define MMCI0_DMA { 0x84, 0 } #define KMI0_IRQ { IRQ_PBA8_KMI0, NO_IRQ } #define KMI0_DMA { 0, 0 } #define KMI1_IRQ { IRQ_PBA8_KMI1, NO_IRQ } #define KMI1_DMA { 0, 0 } #define PBA8_SMC_IRQ { NO_IRQ, NO_IRQ } #define PBA8_SMC_DMA { 0, 0 } #define MPMC_IRQ { NO_IRQ, NO_IRQ } #define MPMC_DMA { 0, 0 } #define PBA8_CLCD_IRQ { IRQ_PBA8_CLCD, NO_IRQ } #define PBA8_CLCD_DMA { 0, 0 } #define DMAC_IRQ { IRQ_PBA8_DMAC, NO_IRQ } #define DMAC_DMA { 0, 0 } #define SCTL_IRQ { NO_IRQ, NO_IRQ } #define SCTL_DMA { 0, 0 } #define PBA8_WATCHDOG_IRQ { IRQ_PBA8_WATCHDOG, NO_IRQ } #define PBA8_WATCHDOG_DMA { 0, 0 } #define PBA8_GPIO0_IRQ { IRQ_PBA8_GPIO0, NO_IRQ } #define PBA8_GPIO0_DMA { 0, 0 } #define GPIO1_IRQ { IRQ_PBA8_GPIO1, NO_IRQ } #define GPIO1_DMA { 0, 0 } #define PBA8_RTC_IRQ { IRQ_PBA8_RTC, NO_IRQ } #define PBA8_RTC_DMA { 0, 0 } #define SCI_IRQ { IRQ_PBA8_SCI, NO_IRQ } #define SCI_DMA { 7, 6 } #define PBA8_UART0_IRQ { IRQ_PBA8_UART0, NO_IRQ } #define PBA8_UART0_DMA { 15, 14 } #define PBA8_UART1_IRQ { IRQ_PBA8_UART1, NO_IRQ } #define PBA8_UART1_DMA { 13, 12 } #define PBA8_UART2_IRQ { IRQ_PBA8_UART2, NO_IRQ } #define PBA8_UART2_DMA { 11, 10 } #define PBA8_UART3_IRQ { IRQ_PBA8_UART3, NO_IRQ } #define PBA8_UART3_DMA { 0x86, 0x87 } #define PBA8_SSP_IRQ { IRQ_PBA8_SSP, NO_IRQ } #define PBA8_SSP_DMA { 9, 8 } /* 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(uart3, "fpga:uart3", PBA8_UART3, NULL); /* DevChip Primecells */ AMBA_DEVICE(smc, "dev:smc", PBA8_SMC, NULL); AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); AMBA_DEVICE(wdog, "dev:wdog", PBA8_WATCHDOG, NULL); AMBA_DEVICE(gpio0, "dev:gpio0", PBA8_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", PBA8_RTC, NULL); AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); AMBA_DEVICE(uart0, "dev:uart0", PBA8_UART0, NULL); AMBA_DEVICE(uart1, "dev:uart1", PBA8_UART1, NULL); AMBA_DEVICE(uart2, "dev:uart2", PBA8_UART2, NULL); AMBA_DEVICE(ssp0, "dev:ssp0", PBA8_SSP, &ssp0_plat_data); /* Primecells on the NEC ISSP chip */ AMBA_DEVICE(clcd, "issp:clcd", PBA8_CLCD, &clcd_plat_data); AMBA_DEVICE(dmac, "issp:dmac", DMAC, NULL); 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 PB-A8 platform devices */ static struct resource realview_pba8_flash_resource[] = { [0] = { .start = REALVIEW_PBA8_FLASH0_BASE, .end = REALVIEW_PBA8_FLASH0_BASE + REALVIEW_PBA8_FLASH0_SIZE - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = REALVIEW_PBA8_FLASH1_BASE, .end = REALVIEW_PBA8_FLASH1_BASE + REALVIEW_PBA8_FLASH1_SIZE - 1, .flags = IORESOURCE_MEM, }, }; static struct resource realview_pba8_smsc911x_resources[] = { [0] = { .start = REALVIEW_PBA8_ETH_BASE, .end = REALVIEW_PBA8_ETH_BASE + SZ_64K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_PBA8_ETH, .end = IRQ_PBA8_ETH, .flags = IORESOURCE_IRQ, }, }; static struct resource realview_pba8_isp1761_resources[] = { [0] = { .start = REALVIEW_PBA8_USB_BASE, .end = REALVIEW_PBA8_USB_BASE + SZ_128K - 1, .flags = IORESOURCE_MEM, }, [1] = { .start = IRQ_PBA8_USB, .end = IRQ_PBA8_USB, .flags = IORESOURCE_IRQ, }, }; static struct resource pmu_resource = { .start = IRQ_PBA8_PMU, .end = IRQ_PBA8_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 void __init gic_init_irq(void) { /* ARM PB-A8 on-board GIC */ gic_init(0, IRQ_PBA8_GIC_START, __io_address(REALVIEW_PBA8_GIC_DIST_BASE), __io_address(REALVIEW_PBA8_GIC_CPU_BASE)); } static void __init realview_pba8_timer_init(void) { timer0_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE); timer1_va_base = __io_address(REALVIEW_PBA8_TIMER0_1_BASE) + 0x20; timer2_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE); timer3_va_base = __io_address(REALVIEW_PBA8_TIMER2_3_BASE) + 0x20; realview_timer_init(IRQ_PBA8_TIMER0_1); } static struct sys_timer realview_pba8_timer = { .init = realview_pba8_timer_init, }; static void realview_pba8_reset(char mode) { 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); __raw_writel(0x0000, reset_ctrl); __raw_writel(0x0004, reset_ctrl); } static void __init realview_pba8_init(void) { int i; realview_flash_register(realview_pba8_flash_resource, ARRAY_SIZE(realview_pba8_flash_resource)); realview_eth_register(NULL, realview_pba8_smsc911x_resources); platform_device_register(&realview_i2c_device); platform_device_register(&realview_cf_device); realview_usb_register(realview_pba8_isp1761_resources); platform_device_register(&pmu_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_pba8_reset; } MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8") /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ .boot_params = PLAT_PHYS_OFFSET + 0x00000100, .fixup = realview_fixup, .map_io = realview_pba8_map_io, .init_irq = gic_init_irq, .timer = &realview_pba8_timer, .init_machine = realview_pba8_init, MACHINE_END