From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-realview/realview_pbx.c | 403 ++++++++++++++++++++++++++++++++++ 1 file changed, 403 insertions(+) create mode 100644 arch/arm/mach-realview/realview_pbx.c (limited to 'arch/arm/mach-realview/realview_pbx.c') diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c new file mode 100644 index 00000000..92ace2cf --- /dev/null +++ b/arch/arm/mach-realview/realview_pbx.c @@ -0,0 +1,403 @@ +/* + * 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 +#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_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)); +} + +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 PBXCore AMBA devices + */ + +#define GPIO2_IRQ { IRQ_PBX_GPIO2, NO_IRQ } +#define GPIO3_IRQ { IRQ_PBX_GPIO3, NO_IRQ } +#define AACI_IRQ { IRQ_PBX_AACI, NO_IRQ } +#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B } +#define KMI0_IRQ { IRQ_PBX_KMI0, NO_IRQ } +#define KMI1_IRQ { IRQ_PBX_KMI1, NO_IRQ } +#define PBX_SMC_IRQ { NO_IRQ, NO_IRQ } +#define MPMC_IRQ { NO_IRQ, NO_IRQ } +#define PBX_CLCD_IRQ { IRQ_PBX_CLCD, NO_IRQ } +#define DMAC_IRQ { IRQ_PBX_DMAC, NO_IRQ } +#define SCTL_IRQ { NO_IRQ, NO_IRQ } +#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG, NO_IRQ } +#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0, NO_IRQ } +#define GPIO1_IRQ { IRQ_PBX_GPIO1, NO_IRQ } +#define PBX_RTC_IRQ { IRQ_PBX_RTC, NO_IRQ } +#define SCI_IRQ { IRQ_PBX_SCI, NO_IRQ } +#define PBX_UART0_IRQ { IRQ_PBX_UART0, NO_IRQ } +#define PBX_UART1_IRQ { IRQ_PBX_UART1, NO_IRQ } +#define PBX_UART2_IRQ { IRQ_PBX_UART2, NO_IRQ } +#define PBX_UART3_IRQ { IRQ_PBX_UART3, NO_IRQ } +#define PBX_SSP_IRQ { IRQ_PBX_SSP, NO_IRQ } + +/* 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", PBX_UART3, NULL); + +/* DevChip Primecells */ +AMBA_DEVICE(smc, "dev:smc", PBX_SMC, NULL); +AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL); +AMBA_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL); +AMBA_DEVICE(gpio0, "dev:gpio0", PBX_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", PBX_RTC, NULL); +AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL); +AMBA_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL); +AMBA_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL); +AMBA_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL); +AMBA_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data); + +/* Primecells on the NEC ISSP chip */ +AMBA_DEVICE(clcd, "issp:clcd", PBX_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-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 struct resource pmu_resources[] = { + [0] = { + .start = IRQ_PBX_PMU_CPU0, + .end = IRQ_PBX_PMU_CPU0, + .flags = IORESOURCE_IRQ, + }, + [1] = { + .start = IRQ_PBX_PMU_CPU1, + .end = IRQ_PBX_PMU_CPU1, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .start = IRQ_PBX_PMU_CPU2, + .end = IRQ_PBX_PMU_CPU2, + .flags = IORESOURCE_IRQ, + }, + [3] = { + .start = IRQ_PBX_PMU_CPU3, + .end = IRQ_PBX_PMU_CPU3, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device pmu_device = { + .name = "arm-pmu", + .id = ARM_PMU_DEVICE_CPU, + .num_resources = ARRAY_SIZE(pmu_resources), + .resource = pmu_resources, +}; + +static void __init gic_init_irq(void) +{ + /* ARM PBX on-board GIC */ + if (core_tile_pbx11mp() || core_tile_pbxa9mp()) { + gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE), + __io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE)); + } else { + gic_init(0, IRQ_PBX_GIC_START, + __io_address(REALVIEW_PBX_GIC_DIST_BASE), + __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 realview_pbx_fixup(struct machine_desc *mdesc, struct tag *tags, + char **from, struct meminfo *meminfo) +{ +#ifdef CONFIG_SPARSEMEM + /* + * Memory configuration with SPARSEMEM enabled on RealView PBX (see + * asm/mach/memory.h for more information). + */ + meminfo->bank[0].start = 0; + meminfo->bank[0].size = SZ_256M; + meminfo->bank[1].start = 0x20000000; + meminfo->bank[1].size = SZ_512M; + meminfo->bank[2].start = 0x80000000; + meminfo->bank[2].size = SZ_256M; + meminfo->nr_banks = 3; +#else + realview_fixup(mdesc, tags, from, meminfo); +#endif +} + +static void realview_pbx_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(0x00F0, reset_ctrl); + __raw_writel(0x00F4, reset_ctrl); +} + +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); + platform_device_register(&pmu_device); + } +#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 + realview_reset = realview_pbx_reset; +} + +MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .boot_params = PLAT_PHYS_OFFSET + 0x00000100, + .fixup = realview_pbx_fixup, + .map_io = realview_pbx_map_io, + .init_early = realview_init_early, + .init_irq = gic_init_irq, + .timer = &realview_pbx_timer, + .init_machine = realview_pbx_init, +MACHINE_END -- cgit v1.2.3