diff options
Diffstat (limited to 'arch/arm/mach-realview/realview_pbx.c')
| -rw-r--r-- | arch/arm/mach-realview/realview_pbx.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c new file mode 100644 index 000000000000..1fe294d0bf9d --- /dev/null +++ b/arch/arm/mach-realview/realview_pbx.c @@ -0,0 +1,335 @@ +/* + * arch/arm/mach-realview/realview_pbx.c + * + * Copyright (C) 2009 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 version 2 as + * published by the Free Software Foundation. + * + * 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/io.h> + +#include <asm/irq.h> +#include <asm/leds.h> +#include <asm/mach-types.h> +#include <asm/hardware/gic.h> +#include <asm/hardware/cache-l2x0.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/mmc.h> +#include <asm/mach/time.h> + +#include <mach/hardware.h> +#include <mach/board-pbx.h> +#include <mach/irqs.h> + +#include "core.h" + +static struct map_desc realview_pbx_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_PBX_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PBX_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER0_1_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PBX_TIMER2_3_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_TIMER2_3_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +#ifdef CONFIG_PCI + { + .virtual = PCIX_UNIT_BASE, + .pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE), + .length = REALVIEW_PBX_PCI_BASE_SIZE, + .type = MT_DEVICE, + }, +#endif +#ifdef CONFIG_DEBUG_LL + { + .virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +#endif +}; + +static struct map_desc realview_local_io_desc[] __initdata = { + { + .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_GIC_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PBX_TILE_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_PBX_TILE_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + } +}; + +static void __init realview_pbx_map_io(void) +{ + iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc)); + if (core_tile_pbx11mp() || core_tile_pbxa9mp()) + iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc)); +} + +/* + * RealView PBXCore AMBA devices + */ + +#define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } +#define GPIO2_DMA { 0, 0 } +#define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } +#define GPIO3_DMA { 0, 0 } +#define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } +#define AACI_DMA { 0x80, 0x81 } +#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } +#define MMCI0_DMA { 0x84, 0 } +#define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } +#define KMI0_DMA { 0, 0 } +#define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } +#define KMI1_DMA { 0, 0 } +#define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } +#define PBX_SMC_DMA { 0, 0 } +#define MPMC_IRQ { NO_IRQ, NO_IRQ } +#define MPMC_DMA { 0, 0 } +#define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } +#define PBX_CLCD_DMA { 0, 0 } +#define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } +#define DMAC_DMA { 0, 0 } +#define SCTL_IRQ { NO_IRQ, NO_IRQ } +#define SCTL_DMA { 0, 0 } +#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } +#define PBX_WATCHDOG_DMA { 0, 0 } +#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } +#define PBX_GPIO0_DMA { 0, 0 } +#define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } +#define GPIO1_DMA { 0, 0 } +#define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } +#define PBX_RTC_DMA { 0, 0 } +#define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } +#define SCI_DMA { 7, 6 } +#define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } +#define PBX_UART0_DMA { 15, 14 } +#define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } +#define PBX_UART1_DMA { 13, 12 } +#define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } +#define PBX_UART2_DMA { 11, 10 } +#define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } +#define PBX_UART3_DMA { 0x86, 0x87 } +#define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } +#define PBX_SSP_DMA { 9, 8 } + +/* FPGA Primecells */ +AMBA_DEVICE(aaci, "fpga:04", AACI, NULL); +AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data); +AMBA_DEVICE(kmi0, "fpga:06", KMI0, NULL); +AMBA_DEVICE(kmi1, "fpga:07", KMI1, NULL); +AMBA_DEVICE(uart3, "fpga:09", PBX_UART3, NULL); + +/* DevChip Primecells */ +AMBA_DEVICE(smc, "dev:00", PBX_SMC, NULL); +AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL); +AMBA_DEVICE(wdog, "dev:e1", PBX_WATCHDOG, NULL); +AMBA_DEVICE(gpio0, "dev:e4", PBX_GPIO0, NULL); +AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL); +AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL); +AMBA_DEVICE(rtc, "dev:e8", PBX_RTC, NULL); +AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); +AMBA_DEVICE(uart0, "dev:f1", PBX_UART0, NULL); +AMBA_DEVICE(uart1, "dev:f2", PBX_UART1, NULL); +AMBA_DEVICE(uart2, "dev:f3", PBX_UART2, NULL); +AMBA_DEVICE(ssp0, "dev:f4", PBX_SSP, NULL); + +/* Primecells on the NEC ISSP chip */ +AMBA_DEVICE(clcd, "issp:20", PBX_CLCD, &clcd_plat_data); +AMBA_DEVICE(dmac, "issp:30", 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-X platform devices + */ +static struct resource realview_pbx_flash_resources[] = { + [0] = { + .start = REALVIEW_PBX_FLASH0_BASE, + .end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = REALVIEW_PBX_FLASH1_BASE, + .end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource realview_pbx_smsc911x_resources[] = { + [0] = { + .start = REALVIEW_PBX_ETH_BASE, + .end = REALVIEW_PBX_ETH_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PBX_ETH, + .end = IRQ_PBX_ETH, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource realview_pbx_isp1761_resources[] = { + [0] = { + .start = REALVIEW_PBX_USB_BASE, + .end = REALVIEW_PBX_USB_BASE + SZ_128K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PBX_USB, + .end = IRQ_PBX_USB, + .flags = IORESOURCE_IRQ, + }, +}; + +static void __init gic_init_irq(void) +{ + /* ARM PBX on-board GIC */ + if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { + gic_cpu_base_addr = __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), + 29); + gic_cpu_init(0, __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); + } else { + gic_cpu_base_addr = __io_address(REALVIEW_PBX_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_PBX_GIC_DIST_BASE), + IRQ_PBX_GIC_START); + gic_cpu_init(0, __io_address(REALVIEW_PBX_GIC_CPU_BASE)); + } +} + +static void __init realview_pbx_timer_init(void) +{ + timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE); + timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20; + timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE); + timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20; + +#ifdef CONFIG_LOCAL_TIMERS + if (core_tile_pbx11mp() || core_tile_pbxa9mp()) + twd_base = __io_address(REALVIEW_PBX_TILE_TWD_BASE); +#endif + realview_timer_init(IRQ_PBX_TIMER0_1); +} + +static struct sys_timer realview_pbx_timer = { + .init = realview_pbx_timer_init, +}; + +static void __init realview_pbx_init(void) +{ + int i; + +#ifdef CONFIG_CACHE_L2X0 + if (core_tile_pbxa9mp()) { + void __iomem *l2x0_base = + __io_address(REALVIEW_PBX_TILE_L220_BASE); + + /* set RAM latencies to 1 cycle for eASIC */ + writel(0, l2x0_base + L2X0_TAG_LATENCY_CTRL); + writel(0, l2x0_base + L2X0_DATA_LATENCY_CTRL); + + /* 16KB way size, 8-way associativity, parity disabled + * Bits: .. 0 0 0 0 1 00 1 0 1 001 0 000 0 .... .... .... */ + l2x0_init(l2x0_base, 0x02520000, 0xc0000fff); + } +#endif + + realview_flash_register(realview_pbx_flash_resources, + ARRAY_SIZE(realview_pbx_flash_resources)); + realview_eth_register(NULL, realview_pbx_smsc911x_resources); + platform_device_register(&realview_i2c_device); + platform_device_register(&realview_cf_device); + realview_usb_register(realview_pbx_isp1761_resources); + + 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 +} + +MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .phys_io = REALVIEW_PBX_UART0_BASE, + .io_pg_offst = (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc, + .boot_params = PHYS_OFFSET + 0x00000100, + .map_io = realview_pbx_map_io, + .init_irq = gic_init_irq, + .timer = &realview_pbx_timer, + .init_machine = realview_pbx_init, +MACHINE_END |