diff options
Diffstat (limited to 'arch/arm/mach-realview')
| -rw-r--r-- | arch/arm/mach-realview/realview_pb1176.c | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c new file mode 100644 index 00000000000..4e6731098e5 --- /dev/null +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -0,0 +1,290 @@ +/* + * linux/arch/arm/mach-realview/realview_pb1176.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 <asm/hardware.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/leds.h> +#include <asm/mach-types.h> +#include <asm/hardware/gic.h> +#include <asm/hardware/icst307.h> +#include <asm/hardware/cache-l2x0.h> + +#include <asm/mach/arch.h> +#include <asm/mach/flash.h> +#include <asm/mach/map.h> +#include <asm/mach/mmc.h> +#include <asm/mach/time.h> + +#include <asm/arch/board-pb1176.h> +#include <asm/arch/irqs.h> + +#include "core.h" +#include "clock.h" + +static struct map_desc realview_pb1176_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_PB1176_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PB1176_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_GIC_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_DC1176_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_DC1176_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_DC1176_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_PB1176_TIMER0_1_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER0_1_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PB1176_TIMER2_3_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_TIMER2_3_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + }, +#ifdef CONFIG_DEBUG_LL + { + .virtual = IO_ADDRESS(REALVIEW_PB1176_UART0_BASE), + .pfn = __phys_to_pfn(REALVIEW_PB1176_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +#endif +}; + +static void __init realview_pb1176_map_io(void) +{ + iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc)); +} + +/* + * RealView PB1176 AMBA devices + */ +#define GPIO2_IRQ { IRQ_PB1176_GPIO2, NO_IRQ } +#define GPIO2_DMA { 0, 0 } +#define GPIO3_IRQ { IRQ_PB1176_GPIO3, NO_IRQ } +#define GPIO3_DMA { 0, 0 } +#define AACI_IRQ { IRQ_PB1176_AACI, NO_IRQ } +#define AACI_DMA { 0x80, 0x81 } +#define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B } +#define MMCI0_DMA { 0x84, 0 } +#define KMI0_IRQ { IRQ_PB1176_KMI0, NO_IRQ } +#define KMI0_DMA { 0, 0 } +#define KMI1_IRQ { IRQ_PB1176_KMI1, NO_IRQ } +#define KMI1_DMA { 0, 0 } +#define PB1176_SMC_IRQ { NO_IRQ, NO_IRQ } +#define PB1176_SMC_DMA { 0, 0 } +#define MPMC_IRQ { NO_IRQ, NO_IRQ } +#define MPMC_DMA { 0, 0 } +#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD, NO_IRQ } +#define PB1176_CLCD_DMA { 0, 0 } +#define DMAC_IRQ { IRQ_PB1176_DMAC, NO_IRQ } +#define DMAC_DMA { 0, 0 } +#define SCTL_IRQ { NO_IRQ, NO_IRQ } +#define SCTL_DMA { 0, 0 } +#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG, NO_IRQ } +#define PB1176_WATCHDOG_DMA { 0, 0 } +#define PB1176_GPIO0_IRQ { IRQ_PB1176_GPIO0, NO_IRQ } +#define PB1176_GPIO0_DMA { 0, 0 } +#define GPIO1_IRQ { IRQ_PB1176_GPIO1, NO_IRQ } +#define GPIO1_DMA { 0, 0 } +#define PB1176_RTC_IRQ { IRQ_DC1176_RTC, NO_IRQ } +#define PB1176_RTC_DMA { 0, 0 } +#define SCI_IRQ { IRQ_PB1176_SCI, NO_IRQ } +#define SCI_DMA { 7, 6 } +#define PB1176_UART0_IRQ { IRQ_DC1176_UART0, NO_IRQ } +#define PB1176_UART0_DMA { 15, 14 } +#define PB1176_UART1_IRQ { IRQ_DC1176_UART1, NO_IRQ } +#define PB1176_UART1_DMA { 13, 12 } +#define PB1176_UART2_IRQ { IRQ_DC1176_UART2, NO_IRQ } +#define PB1176_UART2_DMA { 11, 10 } +#define PB1176_UART3_IRQ { IRQ_DC1176_UART3, NO_IRQ } +#define PB1176_UART3_DMA { 0x86, 0x87 } +#define PB1176_SSP_IRQ { IRQ_PB1176_SSP, NO_IRQ } +#define PB1176_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", PB1176_UART3, NULL); + +/* DevChip Primecells */ +AMBA_DEVICE(smc, "dev:00", PB1176_SMC, NULL); +AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL); +AMBA_DEVICE(wdog, "dev:e1", PB1176_WATCHDOG, NULL); +AMBA_DEVICE(gpio0, "dev:e4", PB1176_GPIO0, NULL); +AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL); +AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL); +AMBA_DEVICE(rtc, "dev:e8", PB1176_RTC, NULL); +AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); +AMBA_DEVICE(uart0, "dev:f1", PB1176_UART0, NULL); +AMBA_DEVICE(uart1, "dev:f2", PB1176_UART1, NULL); +AMBA_DEVICE(uart2, "dev:f3", PB1176_UART2, NULL); +AMBA_DEVICE(ssp0, "dev:f4", PB1176_SSP, NULL); + +/* Primecells on the NEC ISSP chip */ +AMBA_DEVICE(clcd, "issp:20", PB1176_CLCD, &clcd_plat_data); +//AMBA_DEVICE(dmac, "issp:30", PB1176_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 PB1176 platform devices + */ +static struct resource realview_pb1176_flash_resource = { + .start = REALVIEW_PB1176_FLASH_BASE, + .end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct resource realview_pb1176_smsc911x_resources[] = { + [0] = { + .start = REALVIEW_PB1176_ETH_BASE, + .end = REALVIEW_PB1176_ETH_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PB1176_ETH, + .end = IRQ_PB1176_ETH, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device realview_pb1176_smsc911x_device = { + .name = "smc911x", + .id = 0, + .num_resources = ARRAY_SIZE(realview_pb1176_smsc911x_resources), + .resource = realview_pb1176_smsc911x_resources, +}; + +static void __init gic_init_irq(void) +{ + /* ARM1176 DevChip GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_DC1176_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_DC1176_GIC_DIST_BASE), IRQ_DC1176_GIC_START); + gic_cpu_init(0, gic_cpu_base_addr); + + /* board GIC, secondary */ + gic_dist_init(1, __io_address(REALVIEW_PB1176_GIC_DIST_BASE), IRQ_PB1176_GIC_START); + gic_cpu_init(1, __io_address(REALVIEW_PB1176_GIC_CPU_BASE)); + gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1); +} + +static void __init realview_pb1176_timer_init(void) +{ + timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE); + timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20; + timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE); + timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20; + + realview_timer_init(IRQ_DC1176_TIMER0); +} + +static struct sys_timer realview_pb1176_timer = { + .init = realview_pb1176_timer_init, +}; + +static void __init realview_pb1176_init(void) +{ + int i; + + /* 128Kb (16Kb/way) 8-way associativity. evmon/parity/share enabled. */ + l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff); + + clk_register(&realview_clcd_clk); + + realview_flash_register(&realview_pb1176_flash_resource, 1); + platform_device_register(&realview_pb1176_smsc911x_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 +} + +MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .phys_io = REALVIEW_PB1176_UART0_BASE, + .io_pg_offst = (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc, + .boot_params = 0x00000100, + .map_io = realview_pb1176_map_io, + .init_irq = gic_init_irq, + .timer = &realview_pb1176_timer, + .init_machine = realview_pb1176_init, +MACHINE_END |