2008-04-19 05:43:15 +08:00
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/*
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* linux/arch/arm/mach-realview/realview_pb1176.c
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*
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* Copyright (C) 2008 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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2011-12-22 08:26:03 +08:00
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#include <linux/device.h>
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2008-04-19 05:43:15 +08:00
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#include <linux/amba/bus.h>
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2009-07-06 05:41:31 +08:00
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#include <linux/amba/pl061.h>
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2009-09-22 21:29:36 +08:00
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#include <linux/amba/mmci.h>
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2010-07-15 06:58:38 +08:00
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#include <linux/amba/pl022.h>
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2011-09-06 14:50:20 +08:00
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#include <linux/mtd/physmap.h>
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#include <linux/mtd/partitions.h>
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2008-09-06 19:10:45 +08:00
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#include <linux/io.h>
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2012-12-28 03:10:24 +08:00
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#include <linux/irqchip/arm-gic.h>
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2012-08-07 00:32:08 +08:00
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#include <linux/platform_data/clk-realview.h>
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2013-07-09 07:01:40 +08:00
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#include <linux/reboot.h>
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2014-04-14 05:54:58 +08:00
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#include <linux/memblock.h>
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2008-04-19 05:43:15 +08:00
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2008-08-05 23:14:15 +08:00
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#include <mach/hardware.h>
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2008-04-19 05:43:15 +08:00
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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2010-06-21 22:12:40 +08:00
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#include <asm/pgtable.h>
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2008-04-19 05:43:15 +08:00
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#include <asm/hardware/cache-l2x0.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/map.h>
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#include <asm/mach/time.h>
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2008-08-05 23:14:15 +08:00
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#include <mach/board-pb1176.h>
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#include <mach/irqs.h>
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2008-04-19 05:43:15 +08:00
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#include "core.h"
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static struct map_desc realview_pb1176_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_PB1176_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_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_PB1176_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_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_DC1176_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_DC1176_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_DC1176_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_DC1176_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_PB1176_TIMER0_1_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_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_PB1176_TIMER2_3_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_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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.virtual = IO_ADDRESS(REALVIEW_PB1176_L220_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_L220_BASE),
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.length = SZ_8K,
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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_PB1176_UART0_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB1176_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 void __init realview_pb1176_map_io(void)
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{
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iotable_init(realview_pb1176_io_desc, ARRAY_SIZE(realview_pb1176_io_desc));
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}
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2009-07-06 05:41:31 +08:00
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static struct pl061_platform_data gpio0_plat_data = {
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.gpio_base = 0,
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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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};
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static struct pl061_platform_data gpio2_plat_data = {
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.gpio_base = 16,
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};
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2010-07-15 06:58:38 +08:00
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static struct pl022_ssp_controller ssp0_plat_data = {
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.bus_id = 0,
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.enable_dma = 0,
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.num_chipselect = 1,
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};
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2008-04-19 05:43:15 +08:00
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/*
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* RealView PB1176 AMBA devices
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*/
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2011-12-18 19:40:46 +08:00
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#define GPIO2_IRQ { IRQ_PB1176_GPIO2 }
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#define GPIO3_IRQ { IRQ_PB1176_GPIO3 }
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#define AACI_IRQ { IRQ_PB1176_AACI }
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2008-04-19 05:43:15 +08:00
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#define MMCI0_IRQ { IRQ_PB1176_MMCI0A, IRQ_PB1176_MMCI0B }
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2011-12-18 19:40:46 +08:00
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#define KMI0_IRQ { IRQ_PB1176_KMI0 }
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#define KMI1_IRQ { IRQ_PB1176_KMI1 }
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#define PB1176_SMC_IRQ { }
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#define MPMC_IRQ { }
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#define PB1176_CLCD_IRQ { IRQ_DC1176_CLCD }
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#define SCTL_IRQ { }
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#define PB1176_WATCHDOG_IRQ { IRQ_DC1176_WATCHDOG }
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#define PB1176_GPIO0_IRQ { IRQ_DC1176_GPIO0 }
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#define GPIO1_IRQ { IRQ_PB1176_GPIO1 }
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#define PB1176_RTC_IRQ { IRQ_DC1176_RTC }
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#define SCI_IRQ { IRQ_PB1176_SCI }
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#define PB1176_UART0_IRQ { IRQ_DC1176_UART0 }
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#define PB1176_UART1_IRQ { IRQ_DC1176_UART1 }
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#define PB1176_UART2_IRQ { IRQ_DC1176_UART2 }
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#define PB1176_UART3_IRQ { IRQ_DC1176_UART3 }
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#define PB1176_UART4_IRQ { IRQ_PB1176_UART4 }
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#define PB1176_SSP_IRQ { IRQ_DC1176_SSP }
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2008-04-19 05:43:15 +08:00
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/* FPGA Primecells */
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2011-12-18 21:38:49 +08:00
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APB_DEVICE(aaci, "fpga:aaci", AACI, NULL);
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APB_DEVICE(mmc0, "fpga:mmc0", MMCI0, &realview_mmc0_plat_data);
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APB_DEVICE(kmi0, "fpga:kmi0", KMI0, NULL);
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APB_DEVICE(kmi1, "fpga:kmi1", KMI1, NULL);
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APB_DEVICE(uart4, "fpga:uart4", PB1176_UART4, NULL);
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2008-04-19 05:43:15 +08:00
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/* DevChip Primecells */
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2011-12-18 21:38:49 +08:00
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AHB_DEVICE(smc, "dev:smc", PB1176_SMC, NULL);
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AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
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APB_DEVICE(wdog, "dev:wdog", PB1176_WATCHDOG, NULL);
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APB_DEVICE(gpio0, "dev:gpio0", PB1176_GPIO0, &gpio0_plat_data);
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APB_DEVICE(gpio1, "dev:gpio1", GPIO1, &gpio1_plat_data);
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APB_DEVICE(gpio2, "dev:gpio2", GPIO2, &gpio2_plat_data);
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APB_DEVICE(rtc, "dev:rtc", PB1176_RTC, NULL);
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APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
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APB_DEVICE(uart0, "dev:uart0", PB1176_UART0, NULL);
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APB_DEVICE(uart1, "dev:uart1", PB1176_UART1, NULL);
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APB_DEVICE(uart2, "dev:uart2", PB1176_UART2, NULL);
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APB_DEVICE(uart3, "dev:uart3", PB1176_UART3, NULL);
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APB_DEVICE(ssp0, "dev:ssp0", PB1176_SSP, &ssp0_plat_data);
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AHB_DEVICE(clcd, "dev:clcd", PB1176_CLCD, &clcd_plat_data);
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2008-04-19 05:43:15 +08:00
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static struct amba_device *amba_devs[] __initdata = {
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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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2010-07-02 17:24:03 +08:00
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&uart4_device,
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2008-04-19 05:43:15 +08:00
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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 PB1176 platform devices
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*/
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2009-05-30 20:56:13 +08:00
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static struct resource realview_pb1176_flash_resources[] = {
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2011-09-06 14:50:20 +08:00
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{
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2009-05-30 20:56:13 +08:00
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.start = REALVIEW_PB1176_FLASH_BASE,
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.end = REALVIEW_PB1176_FLASH_BASE + REALVIEW_PB1176_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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2011-09-06 14:50:20 +08:00
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#ifdef CONFIG_REALVIEW_PB1176_SECURE_FLASH
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{
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2009-05-30 20:56:13 +08:00
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.start = REALVIEW_PB1176_SEC_FLASH_BASE,
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.end = REALVIEW_PB1176_SEC_FLASH_BASE + REALVIEW_PB1176_SEC_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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#endif
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2011-09-06 14:50:20 +08:00
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};
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static struct physmap_flash_data pb1176_rom_pdata = {
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.probe_type = "map_rom",
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.width = 4,
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.nr_parts = 0,
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};
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static struct resource pb1176_rom_resources[] = {
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/*
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* This exposes the PB1176 DevChip ROM as an MTD ROM mapping.
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* The reference manual states that this is actually a pseudo-ROM
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* programmed in NVRAM.
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*/
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{
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.start = REALVIEW_DC1176_ROM_BASE,
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.end = REALVIEW_DC1176_ROM_BASE + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device pb1176_rom_device = {
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.name = "physmap-flash",
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.id = -1,
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.num_resources = ARRAY_SIZE(pb1176_rom_resources),
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.resource = pb1176_rom_resources,
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.dev = {
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.platform_data = &pb1176_rom_pdata,
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},
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};
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2008-04-19 05:43:15 +08:00
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static struct resource realview_pb1176_smsc911x_resources[] = {
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[0] = {
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.start = REALVIEW_PB1176_ETH_BASE,
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.end = REALVIEW_PB1176_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_PB1176_ETH,
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.end = IRQ_PB1176_ETH,
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.flags = IORESOURCE_IRQ,
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},
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};
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2009-02-12 23:00:21 +08:00
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static struct resource realview_pb1176_isp1761_resources[] = {
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[0] = {
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.start = REALVIEW_PB1176_USB_BASE,
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.end = REALVIEW_PB1176_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_PB1176_USB,
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.end = IRQ_PB1176_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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2010-04-15 17:16:26 +08:00
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static struct resource pmu_resource = {
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.start = IRQ_DC1176_CORE_PMU,
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.end = IRQ_DC1176_CORE_PMU,
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.flags = IORESOURCE_IRQ,
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};
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static struct platform_device pmu_device = {
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2014-05-23 19:12:04 +08:00
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.name = "armv6-pmu",
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2012-07-19 16:50:21 +08:00
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.id = -1,
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2010-04-15 17:16:26 +08:00
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.num_resources = 1,
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.resource = &pmu_resource,
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};
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2010-07-17 19:34:25 +08:00
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static struct resource char_lcd_resources[] = {
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{
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.start = REALVIEW_CHAR_LCD_BASE,
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.end = (REALVIEW_CHAR_LCD_BASE + SZ_4K - 1),
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_PB1176_CHARLCD,
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.end = IRQ_PB1176_CHARLCD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device char_lcd_device = {
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.name = "arm-charlcd",
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.id = -1,
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.num_resources = ARRAY_SIZE(char_lcd_resources),
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.resource = char_lcd_resources,
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};
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|
2008-04-19 05:43:15 +08:00
|
|
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static void __init gic_init_irq(void)
|
|
|
|
{
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|
|
|
/* ARM1176 DevChip GIC, primary */
|
2010-12-04 23:55:14 +08:00
|
|
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gic_init(0, IRQ_DC1176_GIC_START,
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|
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__io_address(REALVIEW_DC1176_GIC_DIST_BASE),
|
2010-12-05 00:13:29 +08:00
|
|
|
__io_address(REALVIEW_DC1176_GIC_CPU_BASE));
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2008-04-19 05:43:15 +08:00
|
|
|
|
|
|
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/* board GIC, secondary */
|
2010-12-04 23:55:14 +08:00
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|
gic_init(1, IRQ_PB1176_GIC_START,
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|
|
|
__io_address(REALVIEW_PB1176_GIC_DIST_BASE),
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|
|
|
__io_address(REALVIEW_PB1176_GIC_CPU_BASE));
|
2008-04-19 05:43:15 +08:00
|
|
|
gic_cascade_irq(1, IRQ_DC1176_PB_IRQ1);
|
|
|
|
}
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static void __init realview_pb1176_timer_init(void)
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|
|
|
{
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|
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|
timer0_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE);
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|
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timer1_va_base = __io_address(REALVIEW_PB1176_TIMER0_1_BASE) + 0x20;
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timer2_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE);
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timer3_va_base = __io_address(REALVIEW_PB1176_TIMER2_3_BASE) + 0x20;
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|
2012-08-07 00:32:08 +08:00
|
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|
realview_clk_init(__io_address(REALVIEW_SYS_BASE), true);
|
2008-04-19 05:43:15 +08:00
|
|
|
realview_timer_init(IRQ_DC1176_TIMER0);
|
|
|
|
}
|
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|
|
|
2013-07-09 07:01:40 +08:00
|
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|
static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd)
|
2009-10-29 02:09:12 +08:00
|
|
|
{
|
2010-01-11 18:09:15 +08:00
|
|
|
void __iomem *reset_ctrl = __io_address(REALVIEW_SYS_RESETCTL);
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|
|
|
void __iomem *lock_ctrl = __io_address(REALVIEW_SYS_LOCK);
|
|
|
|
__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
|
|
|
|
__raw_writel(REALVIEW_PB1176_SYS_SOFT_RESET, reset_ctrl);
|
2011-11-03 22:00:13 +08:00
|
|
|
dsb();
|
2009-10-29 02:09:12 +08:00
|
|
|
}
|
|
|
|
|
2014-04-14 05:54:58 +08:00
|
|
|
static void realview_pb1176_fixup(struct tag *tags, char **from)
|
2009-11-04 20:19:04 +08:00
|
|
|
{
|
|
|
|
/*
|
|
|
|
* RealView PB1176 only has 128MB of RAM mapped at 0.
|
|
|
|
*/
|
2014-04-14 05:54:58 +08:00
|
|
|
memblock_add(0, SZ_128M);
|
2009-11-04 20:19:04 +08:00
|
|
|
}
|
|
|
|
|
2008-04-19 05:43:15 +08:00
|
|
|
static void __init realview_pb1176_init(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
2008-04-19 05:43:17 +08:00
|
|
|
#ifdef CONFIG_CACHE_L2X0
|
2014-03-19 22:53:54 +08:00
|
|
|
/*
|
|
|
|
* The PL220 needs to be manually configured as the hardware
|
|
|
|
* doesn't report the correct sizes.
|
|
|
|
* 128kB (16kB/way), 8-way associativity, event monitor and
|
|
|
|
* parity enabled, ignore share bit, no force write allocate
|
|
|
|
* Bits: .... ...0 0111 0011 0000 .... .... ....
|
|
|
|
*/
|
2008-04-19 05:43:15 +08:00
|
|
|
l2x0_init(__io_address(REALVIEW_PB1176_L220_BASE), 0x00730000, 0xfe000fff);
|
2008-04-19 05:43:17 +08:00
|
|
|
#endif
|
2008-04-19 05:43:15 +08:00
|
|
|
|
2009-05-30 20:56:13 +08:00
|
|
|
realview_flash_register(realview_pb1176_flash_resources,
|
2011-09-06 14:50:20 +08:00
|
|
|
ARRAY_SIZE(realview_pb1176_flash_resources));
|
|
|
|
platform_device_register(&pb1176_rom_device);
|
2008-12-01 22:54:58 +08:00
|
|
|
realview_eth_register(NULL, realview_pb1176_smsc911x_resources);
|
2009-02-12 22:58:20 +08:00
|
|
|
platform_device_register(&realview_i2c_device);
|
2009-02-12 23:00:21 +08:00
|
|
|
realview_usb_register(realview_pb1176_isp1761_resources);
|
2010-04-15 17:16:26 +08:00
|
|
|
platform_device_register(&pmu_device);
|
2010-07-17 19:34:25 +08:00
|
|
|
platform_device_register(&char_lcd_device);
|
2014-02-27 21:29:22 +08:00
|
|
|
platform_device_register(&realview_leds_device);
|
2008-04-19 05:43:15 +08:00
|
|
|
|
|
|
|
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_PB1176, "ARM-RealView PB1176")
|
|
|
|
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
|
2011-07-06 10:38:16 +08:00
|
|
|
.atag_offset = 0x100,
|
2009-11-04 20:19:04 +08:00
|
|
|
.fixup = realview_pb1176_fixup,
|
2008-04-19 05:43:15 +08:00
|
|
|
.map_io = realview_pb1176_map_io,
|
2011-01-11 21:05:01 +08:00
|
|
|
.init_early = realview_init_early,
|
2008-04-19 05:43:15 +08:00
|
|
|
.init_irq = gic_init_irq,
|
2012-11-09 03:40:59 +08:00
|
|
|
.init_time = realview_pb1176_timer_init,
|
2008-04-19 05:43:15 +08:00
|
|
|
.init_machine = realview_pb1176_init,
|
2011-07-06 10:28:09 +08:00
|
|
|
#ifdef CONFIG_ZONE_DMA
|
|
|
|
.dma_zone_size = SZ_256M,
|
|
|
|
#endif
|
2011-11-03 22:00:13 +08:00
|
|
|
.restart = realview_pb1176_restart,
|
2008-04-19 05:43:15 +08:00
|
|
|
MACHINE_END
|