diff options
Diffstat (limited to 'kernel/arch/arm/mach-realview/realview_pb11mp.c')
| -rw-r--r-- | kernel/arch/arm/mach-realview/realview_pb11mp.c | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-realview/realview_pb11mp.c b/kernel/arch/arm/mach-realview/realview_pb11mp.c new file mode 100644 index 000000000..15c45e250 --- /dev/null +++ b/kernel/arch/arm/mach-realview/realview_pb11mp.c @@ -0,0 +1,379 @@ +/* + * linux/arch/arm/mach-realview/realview_pb11mp.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/device.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 <linux/irqchip/arm-gic.h> +#include <linux/platform_data/clk-realview.h> +#include <linux/reboot.h> + +#include <mach/hardware.h> +#include <asm/irq.h> +#include <asm/mach-types.h> +#include <asm/pgtable.h> +#include <asm/hardware/cache-l2x0.h> +#include <asm/smp_twd.h> + +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> + +#include <mach/board-pb11mp.h> +#include <mach/irqs.h> + +#include "core.h" + +static struct map_desc realview_pb11mp_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_PB11MP_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PB11MP_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */ + .virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE), + .pfn = __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE), + .length = REALVIEW_TC11MP_PRIV_MEM_SIZE, + .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_PB11MP_TIMER0_1_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER0_1_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PB11MP_TIMER2_3_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB11MP_TIMER2_3_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_TC11MP_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_TC11MP_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + }, +#ifdef CONFIG_DEBUG_LL + { + .virtual = IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB11MP_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +#endif +}; + +static void __init realview_pb11mp_map_io(void) +{ + iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_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 PB11MPCore AMBA devices + */ + +#define GPIO2_IRQ { IRQ_PB11MP_GPIO2 } +#define GPIO3_IRQ { IRQ_PB11MP_GPIO3 } +#define AACI_IRQ { IRQ_TC11MP_AACI } +#define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B } +#define KMI0_IRQ { IRQ_TC11MP_KMI0 } +#define KMI1_IRQ { IRQ_TC11MP_KMI1 } +#define PB11MP_SMC_IRQ { } +#define MPMC_IRQ { } +#define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD } +#define DMAC_IRQ { IRQ_PB11MP_DMAC } +#define SCTL_IRQ { } +#define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG } +#define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 } +#define GPIO1_IRQ { IRQ_PB11MP_GPIO1 } +#define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC } +#define SCI_IRQ { IRQ_PB11MP_SCI } +#define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 } +#define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 } +#define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 } +#define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 } +#define PB11MP_SSP_IRQ { IRQ_PB11MP_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", PB11MP_UART3, NULL); + +/* DevChip Primecells */ +AHB_DEVICE(smc, "dev:smc", PB11MP_SMC, NULL); +AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL); +APB_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL); +APB_DEVICE(gpio0, "dev:gpio0", PB11MP_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", PB11MP_RTC, NULL); +APB_DEVICE(sci0, "dev:sci0", SCI, NULL); +APB_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL); +APB_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL); +APB_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL); +APB_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data); + +/* Primecells on the NEC ISSP chip */ +AHB_DEVICE(clcd, "issp:clcd", PB11MP_CLCD, &clcd_plat_data); +AHB_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 PB11MPCore platform devices + */ +static struct resource realview_pb11mp_flash_resource[] = { + [0] = { + .start = REALVIEW_PB11MP_FLASH0_BASE, + .end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_FLASH0_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = REALVIEW_PB11MP_FLASH1_BASE, + .end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_FLASH1_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource realview_pb11mp_smsc911x_resources[] = { + [0] = { + .start = REALVIEW_PB11MP_ETH_BASE, + .end = REALVIEW_PB11MP_ETH_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_TC11MP_ETH, + .end = IRQ_TC11MP_ETH, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource realview_pb11mp_isp1761_resources[] = { + [0] = { + .start = REALVIEW_PB11MP_USB_BASE, + .end = REALVIEW_PB11MP_USB_BASE + SZ_128K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_TC11MP_USB, + .end = IRQ_TC11MP_USB, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource pmu_resources[] = { + [0] = { + .start = IRQ_TC11MP_PMU_CPU0, + .end = IRQ_TC11MP_PMU_CPU0, + .flags = IORESOURCE_IRQ, + }, + [1] = { + .start = IRQ_TC11MP_PMU_CPU1, + .end = IRQ_TC11MP_PMU_CPU1, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .start = IRQ_TC11MP_PMU_CPU2, + .end = IRQ_TC11MP_PMU_CPU2, + .flags = IORESOURCE_IRQ, + }, + [3] = { + .start = IRQ_TC11MP_PMU_CPU3, + .end = IRQ_TC11MP_PMU_CPU3, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device pmu_device = { + .name = "armv6-pmu", + .id = -1, + .num_resources = ARRAY_SIZE(pmu_resources), + .resource = pmu_resources, +}; + +static void __init gic_init_irq(void) +{ + unsigned int pldctrl; + + /* new irq mode with no DCC */ + writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); + pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1); + pldctrl |= 2 << 22; + writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1); + writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); + + /* ARM11MPCore test chip GIC, primary */ + gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE), + __io_address(REALVIEW_TC11MP_GIC_CPU_BASE)); + + /* board GIC, secondary */ + gic_init(1, IRQ_PB11MP_GIC_START, + __io_address(REALVIEW_PB11MP_GIC_DIST_BASE), + __io_address(REALVIEW_PB11MP_GIC_CPU_BASE)); + gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1); +} + +#ifdef CONFIG_HAVE_ARM_TWD +static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, + REALVIEW_TC11MP_TWD_BASE, + IRQ_LOCALTIMER); + +static void __init realview_pb11mp_twd_init(void) +{ + int err = twd_local_timer_register(&twd_local_timer); + if (err) + pr_err("twd_local_timer_register failed %d\n", err); +} +#else +#define realview_pb11mp_twd_init() do {} while(0) +#endif + +static void __init realview_pb11mp_timer_init(void) +{ + timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE); + timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20; + timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE); + timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20; + + realview_clk_init(__io_address(REALVIEW_SYS_BASE), false); + realview_timer_init(IRQ_TC11MP_TIMER0_1); + realview_pb11mp_twd_init(); +} + +static void realview_pb11mp_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); + __raw_writel(0x0000, reset_ctrl); + __raw_writel(0x0004, reset_ctrl); + dsb(); +} + +static void __init realview_pb11mp_init(void) +{ + int i; + +#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_TC11MP_L220_BASE), 0x00790000, 0xfe000fff); +#endif + + realview_flash_register(realview_pb11mp_flash_resource, + ARRAY_SIZE(realview_pb11mp_flash_resource)); + realview_eth_register(NULL, realview_pb11mp_smsc911x_resources); + platform_device_register(&realview_i2c_device); + platform_device_register(&realview_cf_device); + platform_device_register(&realview_leds_device); + realview_usb_register(realview_pb11mp_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); + } +} + +MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .atag_offset = 0x100, + .smp = smp_ops(realview_smp_ops), + .fixup = realview_fixup, + .map_io = realview_pb11mp_map_io, + .init_early = realview_init_early, + .init_irq = gic_init_irq, + .init_time = realview_pb11mp_timer_init, + .init_machine = realview_pb11mp_init, +#ifdef CONFIG_ZONE_DMA + .dma_zone_size = SZ_256M, +#endif + .restart = realview_pb11mp_restart, +MACHINE_END |