437 lines
12 KiB
C
437 lines
12 KiB
C
/*
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* linux/arch/arm/mach-realview/realview_eb.c
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*
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* Copyright (C) 2004 ARM Limited
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/sysdev.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/pl061.h>
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#include <linux/amba/mmci.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/leds.h>
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#include <asm/mach-types.h>
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#include <asm/hardware/gic.h>
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/localtimer.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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#include <mach/board-eb.h>
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#include <mach/irqs.h>
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#include "core.h"
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static struct map_desc realview_eb_io_desc[] __initdata = {
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{
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.virtual = IO_ADDRESS(REALVIEW_SYS_BASE),
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.pfn = __phys_to_pfn(REALVIEW_SYS_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB_GIC_CPU_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB_GIC_DIST_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
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.pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB_TIMER0_1_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB_TIMER0_1_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB_TIMER2_3_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB_TIMER2_3_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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},
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#ifdef CONFIG_DEBUG_LL
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{
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.virtual = IO_ADDRESS(REALVIEW_EB_UART0_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB_UART0_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}
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#endif
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};
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static struct map_desc realview_eb11mp_io_desc[] __initdata = {
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{
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.virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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}, {
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.virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE),
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.pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE),
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.length = SZ_8K,
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.type = MT_DEVICE,
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}
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};
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static void __init realview_eb_map_io(void)
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{
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iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
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if (core_tile_eb11mp() || core_tile_a9mp())
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iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc));
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}
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static struct pl061_platform_data gpio0_plat_data = {
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.gpio_base = 0,
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.irq_base = -1,
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};
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static struct pl061_platform_data gpio1_plat_data = {
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.gpio_base = 8,
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.irq_base = -1,
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};
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static struct pl061_platform_data gpio2_plat_data = {
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.gpio_base = 16,
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.irq_base = -1,
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};
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/*
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* RealView EB AMBA devices
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*/
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/*
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* These devices are connected via the core APB bridge
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*/
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#define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ }
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#define GPIO2_DMA { 0, 0 }
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#define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ }
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#define GPIO3_DMA { 0, 0 }
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#define AACI_IRQ { IRQ_EB_AACI, NO_IRQ }
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#define AACI_DMA { 0x80, 0x81 }
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#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
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#define MMCI0_DMA { 0x84, 0 }
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#define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ }
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#define KMI0_DMA { 0, 0 }
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#define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ }
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#define KMI1_DMA { 0, 0 }
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/*
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* These devices are connected directly to the multi-layer AHB switch
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*/
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#define EB_SMC_IRQ { NO_IRQ, NO_IRQ }
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#define EB_SMC_DMA { 0, 0 }
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#define MPMC_IRQ { NO_IRQ, NO_IRQ }
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#define MPMC_DMA { 0, 0 }
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#define EB_CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ }
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#define EB_CLCD_DMA { 0, 0 }
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#define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ }
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#define DMAC_DMA { 0, 0 }
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/*
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* These devices are connected via the core APB bridge
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*/
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#define SCTL_IRQ { NO_IRQ, NO_IRQ }
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#define SCTL_DMA { 0, 0 }
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#define EB_WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ }
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#define EB_WATCHDOG_DMA { 0, 0 }
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#define EB_GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ }
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#define EB_GPIO0_DMA { 0, 0 }
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#define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ }
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#define GPIO1_DMA { 0, 0 }
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#define EB_RTC_IRQ { IRQ_EB_RTC, NO_IRQ }
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#define EB_RTC_DMA { 0, 0 }
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/*
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* These devices are connected via the DMA APB bridge
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*/
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#define SCI_IRQ { IRQ_EB_SCI, NO_IRQ }
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#define SCI_DMA { 7, 6 }
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#define EB_UART0_IRQ { IRQ_EB_UART0, NO_IRQ }
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#define EB_UART0_DMA { 15, 14 }
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#define EB_UART1_IRQ { IRQ_EB_UART1, NO_IRQ }
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#define EB_UART1_DMA { 13, 12 }
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#define EB_UART2_IRQ { IRQ_EB_UART2, NO_IRQ }
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#define EB_UART2_DMA { 11, 10 }
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#define EB_UART3_IRQ { IRQ_EB_UART3, NO_IRQ }
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#define EB_UART3_DMA { 0x86, 0x87 }
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#define EB_SSP_IRQ { IRQ_EB_SSP, NO_IRQ }
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#define EB_SSP_DMA { 9, 8 }
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/* FPGA Primecells */
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AMBA_DEVICE(aaci, "fpga:aaci", AACI, NULL);
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AMBA_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
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AMBA_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
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AMBA_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
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AMBA_DEVICE(uart3, "fpga:uart3", EB_UART3, NULL);
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/* DevChip Primecells */
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AMBA_DEVICE(smc, "dev:smc", EB_SMC, NULL);
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AMBA_DEVICE(clcd, "dev:clcd", EB_CLCD, &clcd_plat_data);
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AMBA_DEVICE(dmac, "dev:dmac", DMAC, NULL);
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AMBA_DEVICE(sctl, "dev:sctl", SCTL, NULL);
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AMBA_DEVICE(wdog, "dev:wdog", EB_WATCHDOG, NULL);
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AMBA_DEVICE(gpio0, "dev:gpio0", EB_GPIO0, &gpio0_plat_data);
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AMBA_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
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AMBA_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
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AMBA_DEVICE(rtc, "dev:rtc", EB_RTC, NULL);
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AMBA_DEVICE(sci0, "dev:sci0", SCI, NULL);
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AMBA_DEVICE(uart0, "dev:uart0", EB_UART0, NULL);
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AMBA_DEVICE(uart1, "dev:uart1", EB_UART1, NULL);
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AMBA_DEVICE(uart2, "dev:uart2", EB_UART2, NULL);
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AMBA_DEVICE(ssp0, "dev:ssp0", EB_SSP, NULL);
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static struct amba_device *amba_devs[] __initdata = {
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&dmac_device,
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&uart0_device,
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&uart1_device,
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&uart2_device,
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&uart3_device,
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&smc_device,
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&clcd_device,
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&sctl_device,
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&wdog_device,
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&gpio0_device,
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&gpio1_device,
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&gpio2_device,
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&rtc_device,
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&sci0_device,
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&ssp0_device,
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&aaci_device,
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&mmc0_device,
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&kmi0_device,
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&kmi1_device,
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};
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/*
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* RealView EB platform devices
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*/
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static struct resource realview_eb_flash_resource = {
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.start = REALVIEW_EB_FLASH_BASE,
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.end = REALVIEW_EB_FLASH_BASE + REALVIEW_EB_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct resource realview_eb_eth_resources[] = {
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[0] = {
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.start = REALVIEW_EB_ETH_BASE,
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.end = REALVIEW_EB_ETH_BASE + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_EB_ETH,
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.end = IRQ_EB_ETH,
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.flags = IORESOURCE_IRQ,
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},
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};
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/*
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* Detect and register the correct Ethernet device. RealView/EB rev D
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* platforms use the newer SMSC LAN9118 Ethernet chip
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*/
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static int eth_device_register(void)
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{
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void __iomem *eth_addr = ioremap(REALVIEW_EB_ETH_BASE, SZ_4K);
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const char *name = NULL;
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u32 idrev;
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if (!eth_addr)
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return -ENOMEM;
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idrev = readl(eth_addr + 0x50);
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if ((idrev & 0xFFFF0000) != 0x01180000)
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/* SMSC LAN9118 not present, use LAN91C111 instead */
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name = "smc91x";
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iounmap(eth_addr);
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return realview_eth_register(name, realview_eb_eth_resources);
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}
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static struct resource realview_eb_isp1761_resources[] = {
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[0] = {
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.start = REALVIEW_EB_USB_BASE,
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.end = REALVIEW_EB_USB_BASE + SZ_128K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_EB_USB,
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.end = IRQ_EB_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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static void __init gic_init_irq(void)
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{
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if (core_tile_eb11mp() || core_tile_a9mp()) {
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unsigned int pldctrl;
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/* new irq mode */
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writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
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pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
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pldctrl |= 0x00800000;
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writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
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writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
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/* core tile GIC, primary */
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gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
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gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29);
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gic_cpu_init(0, gic_cpu_base_addr);
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#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
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/* board GIC, secondary */
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gic_dist_init(1, __io_address(REALVIEW_EB_GIC_DIST_BASE), 64);
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gic_cpu_init(1, __io_address(REALVIEW_EB_GIC_CPU_BASE));
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gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
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#endif
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} else {
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/* board GIC, primary */
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gic_cpu_base_addr = __io_address(REALVIEW_EB_GIC_CPU_BASE);
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gic_dist_init(0, __io_address(REALVIEW_EB_GIC_DIST_BASE), 29);
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gic_cpu_init(0, gic_cpu_base_addr);
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}
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}
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/*
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* Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile
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*/
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static void realview_eb11mp_fixup(void)
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{
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/* AMBA devices */
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dmac_device.irq[0] = IRQ_EB11MP_DMA;
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uart0_device.irq[0] = IRQ_EB11MP_UART0;
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uart1_device.irq[0] = IRQ_EB11MP_UART1;
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uart2_device.irq[0] = IRQ_EB11MP_UART2;
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uart3_device.irq[0] = IRQ_EB11MP_UART3;
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clcd_device.irq[0] = IRQ_EB11MP_CLCD;
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wdog_device.irq[0] = IRQ_EB11MP_WDOG;
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gpio0_device.irq[0] = IRQ_EB11MP_GPIO0;
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gpio1_device.irq[0] = IRQ_EB11MP_GPIO1;
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gpio2_device.irq[0] = IRQ_EB11MP_GPIO2;
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rtc_device.irq[0] = IRQ_EB11MP_RTC;
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sci0_device.irq[0] = IRQ_EB11MP_SCI;
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ssp0_device.irq[0] = IRQ_EB11MP_SSP;
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aaci_device.irq[0] = IRQ_EB11MP_AACI;
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mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A;
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mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B;
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kmi0_device.irq[0] = IRQ_EB11MP_KMI0;
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kmi1_device.irq[0] = IRQ_EB11MP_KMI1;
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/* platform devices */
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realview_eb_eth_resources[1].start = IRQ_EB11MP_ETH;
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realview_eb_eth_resources[1].end = IRQ_EB11MP_ETH;
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realview_eb_isp1761_resources[1].start = IRQ_EB11MP_USB;
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realview_eb_isp1761_resources[1].end = IRQ_EB11MP_USB;
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}
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static void __init realview_eb_timer_init(void)
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{
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unsigned int timer_irq;
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timer0_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE);
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timer1_va_base = __io_address(REALVIEW_EB_TIMER0_1_BASE) + 0x20;
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timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE);
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timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20;
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if (core_tile_eb11mp() || core_tile_a9mp()) {
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#ifdef CONFIG_LOCAL_TIMERS
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twd_base = __io_address(REALVIEW_EB11MP_TWD_BASE);
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#endif
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timer_irq = IRQ_EB11MP_TIMER0_1;
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} else
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timer_irq = IRQ_EB_TIMER0_1;
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realview_timer_init(timer_irq);
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}
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static struct sys_timer realview_eb_timer = {
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.init = realview_eb_timer_init,
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};
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static void realview_eb_reset(char mode)
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{
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void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
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void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
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/*
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* To reset, we hit the on-board reset register
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* in the system FPGA
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*/
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__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
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if (core_tile_eb11mp())
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__raw_writel(0x0008, reset_ctrl);
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}
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static void __init realview_eb_init(void)
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{
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int i;
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if (core_tile_eb11mp() || core_tile_a9mp()) {
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realview_eb11mp_fixup();
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#ifdef CONFIG_CACHE_L2X0
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/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
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* Bits: .... ...0 0111 1001 0000 .... .... .... */
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l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff);
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#endif
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}
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realview_flash_register(&realview_eb_flash_resource, 1);
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platform_device_register(&realview_i2c_device);
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eth_device_register();
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realview_usb_register(realview_eb_isp1761_resources);
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for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
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struct amba_device *d = amba_devs[i];
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amba_device_register(d, &iomem_resource);
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}
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#ifdef CONFIG_LEDS
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leds_event = realview_leds_event;
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#endif
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realview_reset = realview_eb_reset;
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}
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MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
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/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
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.phys_io = REALVIEW_EB_UART0_BASE,
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.io_pg_offst = (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x00000100,
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.fixup = realview_fixup,
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.map_io = realview_eb_map_io,
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.init_irq = gic_init_irq,
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.timer = &realview_eb_timer,
|
|
.init_machine = realview_eb_init,
|
|
MACHINE_END
|