diff options
Diffstat (limited to 'libdde_linux26/contrib/arch/arm/mach-realview')
4 files changed, 538 insertions, 0 deletions
diff --git a/libdde_linux26/contrib/arch/arm/mach-realview/clock.c b/libdde_linux26/contrib/arch/arm/mach-realview/clock.c new file mode 100644 index 00000000..a7043115 --- /dev/null +++ b/libdde_linux26/contrib/arch/arm/mach-realview/clock.c @@ -0,0 +1,64 @@ +/* + * linux/arch/arm/mach-realview/clock.c + * + * Copyright (C) 2004 ARM Limited. + * Written by Deep Blue Solutions Limited. + * + * 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. + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/clk.h> +#include <linux/mutex.h> + +#include <asm/hardware/icst307.h> + +#include "clock.h" + +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + return clk->rate; +} +EXPORT_SYMBOL(clk_get_rate); + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + struct icst307_vco vco; + vco = icst307_khz_to_vco(clk->params, rate / 1000); + return icst307_khz(clk->params, vco) * 1000; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + int ret = -EIO; + + if (clk->setvco) { + struct icst307_vco vco; + + vco = icst307_khz_to_vco(clk->params, rate / 1000); + clk->rate = icst307_khz(clk->params, vco) * 1000; + clk->setvco(clk, vco); + ret = 0; + } + return ret; +} +EXPORT_SYMBOL(clk_set_rate); diff --git a/libdde_linux26/contrib/arch/arm/mach-realview/clock.h b/libdde_linux26/contrib/arch/arm/mach-realview/clock.h new file mode 100644 index 00000000..ebbb0f06 --- /dev/null +++ b/libdde_linux26/contrib/arch/arm/mach-realview/clock.h @@ -0,0 +1,19 @@ +/* + * linux/arch/arm/mach-realview/clock.h + * + * Copyright (C) 2004 ARM Limited. + * Written by Deep Blue Solutions Limited. + * + * 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. + */ +struct module; +struct icst307_params; + +struct clk { + unsigned long rate; + const struct icst307_params *params; + void *data; + void (*setvco)(struct clk *, struct icst307_vco vco); +}; diff --git a/libdde_linux26/contrib/arch/arm/mach-realview/core.h b/libdde_linux26/contrib/arch/arm/mach-realview/core.h new file mode 100644 index 00000000..44269b16 --- /dev/null +++ b/libdde_linux26/contrib/arch/arm/mach-realview/core.h @@ -0,0 +1,66 @@ +/* + * linux/arch/arm/mach-realview/core.h + * + * Copyright (C) 2004 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 + */ + +#ifndef __ASM_ARCH_REALVIEW_H +#define __ASM_ARCH_REALVIEW_H + +#include <linux/amba/bus.h> +#include <linux/io.h> + +#include <asm/leds.h> + +#define AMBA_DEVICE(name,busid,base,plat) \ +static struct amba_device name##_device = { \ + .dev = { \ + .coherent_dma_mask = ~0, \ + .init_name = busid, \ + .platform_data = plat, \ + }, \ + .res = { \ + .start = REALVIEW_##base##_BASE, \ + .end = (REALVIEW_##base##_BASE) + SZ_4K - 1, \ + .flags = IORESOURCE_MEM, \ + }, \ + .dma_mask = ~0, \ + .irq = base##_IRQ, \ + /* .dma = base##_DMA,*/ \ +} + +extern struct platform_device realview_flash_device; +extern struct platform_device realview_i2c_device; +extern struct mmc_platform_data realview_mmc0_plat_data; +extern struct mmc_platform_data realview_mmc1_plat_data; +extern struct clcd_board clcd_plat_data; +extern void __iomem *gic_cpu_base_addr; +#ifdef CONFIG_LOCAL_TIMERS +extern void __iomem *twd_base; +#endif +extern void __iomem *timer0_va_base; +extern void __iomem *timer1_va_base; +extern void __iomem *timer2_va_base; +extern void __iomem *timer3_va_base; + +extern void realview_leds_event(led_event_t ledevt); +extern void realview_timer_init(unsigned int timer_irq); +extern int realview_flash_register(struct resource *res, u32 num); +extern int realview_eth_register(const char *name, struct resource *res); + +#endif diff --git a/libdde_linux26/contrib/arch/arm/mach-realview/realview_eb.c b/libdde_linux26/contrib/arch/arm/mach-realview/realview_eb.c new file mode 100644 index 00000000..bed39ed9 --- /dev/null +++ b/libdde_linux26/contrib/arch/arm/mach-realview/realview_eb.c @@ -0,0 +1,389 @@ +/* + * linux/arch/arm/mach-realview/realview_eb.c + * + * Copyright (C) 2004 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/io.h> + +#include <mach/hardware.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/map.h> +#include <asm/mach/mmc.h> +#include <asm/mach/time.h> + +#include <mach/board-eb.h> +#include <mach/irqs.h> + +#include "core.h" +#include "clock.h" + +static struct map_desc realview_eb_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_EB_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_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_EB_TIMER0_1_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, +#ifdef CONFIG_DEBUG_LL + { + .virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB_UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + } +#endif +}; + +static struct map_desc realview_eb11mp_io_desc[] __initdata = { + { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + } +}; + +static void __init realview_eb_map_io(void) +{ + iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc)); + if (core_tile_eb11mp() || core_tile_a9mp()) + iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc)); +} + +/* + * RealView EB AMBA devices + */ + +/* + * These devices are connected via the core APB bridge + */ +#define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ } +#define GPIO2_DMA { 0, 0 } +#define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ } +#define GPIO3_DMA { 0, 0 } + +#define AACI_IRQ { IRQ_EB_AACI, NO_IRQ } +#define AACI_DMA { 0x80, 0x81 } +#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B } +#define MMCI0_DMA { 0x84, 0 } +#define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ } +#define KMI0_DMA { 0, 0 } +#define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ } +#define KMI1_DMA { 0, 0 } + +/* + * These devices are connected directly to the multi-layer AHB switch + */ +#define EB_SMC_IRQ { NO_IRQ, NO_IRQ } +#define EB_SMC_DMA { 0, 0 } +#define MPMC_IRQ { NO_IRQ, NO_IRQ } +#define MPMC_DMA { 0, 0 } +#define EB_CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ } +#define EB_CLCD_DMA { 0, 0 } +#define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ } +#define DMAC_DMA { 0, 0 } + +/* + * These devices are connected via the core APB bridge + */ +#define SCTL_IRQ { NO_IRQ, NO_IRQ } +#define SCTL_DMA { 0, 0 } +#define EB_WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ } +#define EB_WATCHDOG_DMA { 0, 0 } +#define EB_GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ } +#define EB_GPIO0_DMA { 0, 0 } +#define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ } +#define GPIO1_DMA { 0, 0 } +#define EB_RTC_IRQ { IRQ_EB_RTC, NO_IRQ } +#define EB_RTC_DMA { 0, 0 } + +/* + * These devices are connected via the DMA APB bridge + */ +#define SCI_IRQ { IRQ_EB_SCI, NO_IRQ } +#define SCI_DMA { 7, 6 } +#define EB_UART0_IRQ { IRQ_EB_UART0, NO_IRQ } +#define EB_UART0_DMA { 15, 14 } +#define EB_UART1_IRQ { IRQ_EB_UART1, NO_IRQ } +#define EB_UART1_DMA { 13, 12 } +#define EB_UART2_IRQ { IRQ_EB_UART2, NO_IRQ } +#define EB_UART2_DMA { 11, 10 } +#define EB_UART3_IRQ { IRQ_EB_UART3, NO_IRQ } +#define EB_UART3_DMA { 0x86, 0x87 } +#define EB_SSP_IRQ { IRQ_EB_SSP, NO_IRQ } +#define EB_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", EB_UART3, NULL); + +/* DevChip Primecells */ +AMBA_DEVICE(smc, "dev:00", EB_SMC, NULL); +AMBA_DEVICE(clcd, "dev:20", EB_CLCD, &clcd_plat_data); +AMBA_DEVICE(dmac, "dev:30", DMAC, NULL); +AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL); +AMBA_DEVICE(wdog, "dev:e1", EB_WATCHDOG, NULL); +AMBA_DEVICE(gpio0, "dev:e4", EB_GPIO0, NULL); +AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL); +AMBA_DEVICE(gpio2, "dev:e6", GPIO2, NULL); +AMBA_DEVICE(rtc, "dev:e8", EB_RTC, NULL); +AMBA_DEVICE(sci0, "dev:f0", SCI, NULL); +AMBA_DEVICE(uart0, "dev:f1", EB_UART0, NULL); +AMBA_DEVICE(uart1, "dev:f2", EB_UART1, NULL); +AMBA_DEVICE(uart2, "dev:f3", EB_UART2, NULL); +AMBA_DEVICE(ssp0, "dev:f4", EB_SSP, 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 EB platform devices + */ +static struct resource realview_eb_flash_resource = { + .start = REALVIEW_EB_FLASH_BASE, + .end = REALVIEW_EB_FLASH_BASE + REALVIEW_EB_FLASH_SIZE - 1, + .flags = IORESOURCE_MEM, +}; + +static struct resource realview_eb_eth_resources[] = { + [0] = { + .start = REALVIEW_EB_ETH_BASE, + .end = REALVIEW_EB_ETH_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_EB_ETH, + .end = IRQ_EB_ETH, + .flags = IORESOURCE_IRQ, + }, +}; + +/* + * Detect and register the correct Ethernet device. RealView/EB rev D + * platforms use the newer SMSC LAN9118 Ethernet chip + */ +static int eth_device_register(void) +{ + void __iomem *eth_addr = ioremap(REALVIEW_EB_ETH_BASE, SZ_4K); + const char *name = NULL; + u32 idrev; + + if (!eth_addr) + return -ENOMEM; + + idrev = readl(eth_addr + 0x50); + if ((idrev & 0xFFFF0000) != 0x01180000) + /* SMSC LAN9118 not present, use LAN91C111 instead */ + name = "smc91x"; + + iounmap(eth_addr); + return realview_eth_register(name, realview_eb_eth_resources); +} + +static void __init gic_init_irq(void) +{ + if (core_tile_eb11mp() || core_tile_a9mp()) { + unsigned int pldctrl; + + /* new irq mode */ + writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); + pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); + pldctrl |= 0x00800000; + writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1); + writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); + + /* core tile GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29); + gic_cpu_init(0, gic_cpu_base_addr); + +#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB + /* board GIC, secondary */ + gic_dist_init(1, __io_address(REALVIEW_EB_GIC_DIST_BASE), 64); + gic_cpu_init(1, __io_address(REALVIEW_EB_GIC_CPU_BASE)); + gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1); +#endif + } else { + /* board GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE); + gic_dist_init(0, __io_address(REALVIEW_EB_GIC_DIST_BASE), 29); + gic_cpu_init(0, gic_cpu_base_addr); + } +} + +/* + * Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile + */ +static void realview_eb11mp_fixup(void) +{ + /* AMBA devices */ + dmac_device.irq[0] = IRQ_EB11MP_DMA; + uart0_device.irq[0] = IRQ_EB11MP_UART0; + uart1_device.irq[0] = IRQ_EB11MP_UART1; + uart2_device.irq[0] = IRQ_EB11MP_UART2; + uart3_device.irq[0] = IRQ_EB11MP_UART3; + clcd_device.irq[0] = IRQ_EB11MP_CLCD; + wdog_device.irq[0] = IRQ_EB11MP_WDOG; + gpio0_device.irq[0] = IRQ_EB11MP_GPIO0; + gpio1_device.irq[0] = IRQ_EB11MP_GPIO1; + gpio2_device.irq[0] = IRQ_EB11MP_GPIO2; + rtc_device.irq[0] = IRQ_EB11MP_RTC; + sci0_device.irq[0] = IRQ_EB11MP_SCI; + ssp0_device.irq[0] = IRQ_EB11MP_SSP; + aaci_device.irq[0] = IRQ_EB11MP_AACI; + mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A; + mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B; + kmi0_device.irq[0] = IRQ_EB11MP_KMI0; + kmi1_device.irq[0] = IRQ_EB11MP_KMI1; + + /* platform devices */ + realview_eb_eth_resources[1].start = IRQ_EB11MP_ETH; + realview_eb_eth_resources[1].end = IRQ_EB11MP_ETH; +} + +static void __init realview_eb_timer_init(void) +{ + unsigned int timer_irq; + + timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE); + timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20; + timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE); + timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20; + + if (core_tile_eb11mp() || core_tile_a9mp()) { +#ifdef CONFIG_LOCAL_TIMERS + twd_base = __io_address(REALVIEW_EB11MP_TWD_BASE); +#endif + timer_irq = IRQ_EB11MP_TIMER0_1; + } else + timer_irq = IRQ_EB_TIMER0_1; + + realview_timer_init(timer_irq); +} + +static struct sys_timer realview_eb_timer = { + .init = realview_eb_timer_init, +}; + +static void __init realview_eb_init(void) +{ + int i; + + if (core_tile_eb11mp() || core_tile_a9mp()) { + realview_eb11mp_fixup(); + +#ifdef CONFIG_CACHE_L2X0 + /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled + * Bits: .... ...0 0111 1001 0000 .... .... .... */ + l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff); +#endif + } + + realview_flash_register(&realview_eb_flash_resource, 1); + platform_device_register(&realview_i2c_device); + eth_device_register(); + + 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_EB, "ARM-RealView EB") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .phys_io = REALVIEW_EB_UART0_BASE, + .io_pg_offst = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc, + .boot_params = PHYS_OFFSET + 0x00000100, + .map_io = realview_eb_map_io, + .init_irq = gic_init_irq, + .timer = &realview_eb_timer, + .init_machine = realview_eb_init, +MACHINE_END |