2009-05-30 06:56:12 -06:00
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/*
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* arch/arm/mach-realview/realview_pbx.c
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*
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* Copyright (C) 2009 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 version 2 as
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* published by the Free Software Foundation.
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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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2011-12-21 17:26:03 -07:00
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#include <linux/device.h>
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2009-05-30 06:56:12 -06:00
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#include <linux/amba/bus.h>
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2009-07-05 15:41:31 -06:00
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#include <linux/amba/pl061.h>
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2009-09-22 07:29:36 -06:00
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#include <linux/amba/mmci.h>
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2010-07-14 16:58:38 -06:00
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#include <linux/amba/pl022.h>
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2009-05-30 06:56:12 -06:00
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#include <linux/io.h>
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2012-08-06 10:32:08 -06:00
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#include <linux/platform_data/clk-realview.h>
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2009-05-30 06:56:12 -06:00
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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2009-06-19 04:28:48 -06:00
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#include <asm/smp_twd.h>
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2010-06-21 08:12:40 -06:00
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#include <asm/pgtable.h>
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2009-05-30 06:56:12 -06:00
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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/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/hardware.h>
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#include <mach/board-pbx.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_pbx_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_PBX_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER0_1_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_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_PBX_TIMER2_3_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_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_PCI
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{
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.virtual = PCIX_UNIT_BASE,
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.pfn = __phys_to_pfn(REALVIEW_PBX_PCI_BASE),
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.length = REALVIEW_PBX_PCI_BASE_SIZE,
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.type = MT_DEVICE,
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},
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#endif
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#ifdef CONFIG_DEBUG_LL
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{
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.virtual = IO_ADDRESS(REALVIEW_PBX_UART0_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_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_local_io_desc[] __initdata = {
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{
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2011-09-29 15:22:02 -06:00
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.virtual = IO_ADDRESS(REALVIEW_PBX_TILE_SCU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_SCU_BASE),
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2009-05-30 06:56:12 -06:00
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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_PBX_TILE_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_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_PBX_TILE_L220_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PBX_TILE_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_pbx_map_io(void)
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{
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iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
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if (core_tile_pbx11mp() || core_tile_pbxa9mp())
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iotable_init(realview_local_io_desc, ARRAY_SIZE(realview_local_io_desc));
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}
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2009-07-05 15:41:31 -06:00
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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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2010-07-14 16:58:38 -06:00
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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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2009-05-30 06:56:12 -06:00
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/*
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* RealView PBXCore AMBA devices
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*/
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2011-12-18 04:40:46 -07:00
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#define GPIO2_IRQ { IRQ_PBX_GPIO2 }
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#define GPIO3_IRQ { IRQ_PBX_GPIO3 }
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#define AACI_IRQ { IRQ_PBX_AACI }
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2009-05-30 06:56:12 -06:00
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#define MMCI0_IRQ { IRQ_PBX_MMCI0A, IRQ_PBX_MMCI0B }
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2011-12-18 04:40:46 -07:00
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#define KMI0_IRQ { IRQ_PBX_KMI0 }
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#define KMI1_IRQ { IRQ_PBX_KMI1 }
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#define PBX_SMC_IRQ { }
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#define MPMC_IRQ { }
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#define PBX_CLCD_IRQ { IRQ_PBX_CLCD }
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#define DMAC_IRQ { IRQ_PBX_DMAC }
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#define SCTL_IRQ { }
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#define PBX_WATCHDOG_IRQ { IRQ_PBX_WATCHDOG }
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#define PBX_GPIO0_IRQ { IRQ_PBX_GPIO0 }
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#define GPIO1_IRQ { IRQ_PBX_GPIO1 }
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#define PBX_RTC_IRQ { IRQ_PBX_RTC }
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#define SCI_IRQ { IRQ_PBX_SCI }
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#define PBX_UART0_IRQ { IRQ_PBX_UART0 }
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#define PBX_UART1_IRQ { IRQ_PBX_UART1 }
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#define PBX_UART2_IRQ { IRQ_PBX_UART2 }
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#define PBX_UART3_IRQ { IRQ_PBX_UART3 }
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#define PBX_SSP_IRQ { IRQ_PBX_SSP }
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2009-05-30 06:56:12 -06:00
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/* FPGA Primecells */
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2011-12-18 06:38:49 -07:00
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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(uart3, "fpga:uart3", PBX_UART3, NULL);
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2009-05-30 06:56:12 -06:00
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/* DevChip Primecells */
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2011-12-18 06:38:49 -07:00
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AHB_DEVICE(smc, "dev:smc", PBX_SMC, NULL);
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AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
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APB_DEVICE(wdog, "dev:wdog", PBX_WATCHDOG, NULL);
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APB_DEVICE(gpio0, "dev:gpio0", PBX_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", PBX_RTC, NULL);
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APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
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APB_DEVICE(uart0, "dev:uart0", PBX_UART0, NULL);
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APB_DEVICE(uart1, "dev:uart1", PBX_UART1, NULL);
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APB_DEVICE(uart2, "dev:uart2", PBX_UART2, NULL);
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APB_DEVICE(ssp0, "dev:ssp0", PBX_SSP, &ssp0_plat_data);
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2009-05-30 06:56:12 -06:00
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/* Primecells on the NEC ISSP chip */
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2011-12-18 06:38:49 -07:00
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AHB_DEVICE(clcd, "issp:clcd", PBX_CLCD, &clcd_plat_data);
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AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
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2009-05-30 06:56:12 -06:00
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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 PB-X platform devices
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*/
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static struct resource realview_pbx_flash_resources[] = {
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[0] = {
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.start = REALVIEW_PBX_FLASH0_BASE,
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.end = REALVIEW_PBX_FLASH0_BASE + REALVIEW_PBX_FLASH0_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = REALVIEW_PBX_FLASH1_BASE,
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.end = REALVIEW_PBX_FLASH1_BASE + REALVIEW_PBX_FLASH1_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct resource realview_pbx_smsc911x_resources[] = {
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[0] = {
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.start = REALVIEW_PBX_ETH_BASE,
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.end = REALVIEW_PBX_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_PBX_ETH,
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.end = IRQ_PBX_ETH,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource realview_pbx_isp1761_resources[] = {
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[0] = {
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.start = REALVIEW_PBX_USB_BASE,
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.end = REALVIEW_PBX_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_PBX_USB,
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.end = IRQ_PBX_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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2010-04-15 03:16:26 -06:00
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static struct resource pmu_resources[] = {
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[0] = {
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.start = IRQ_PBX_PMU_CPU0,
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.end = IRQ_PBX_PMU_CPU0,
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.flags = IORESOURCE_IRQ,
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},
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[1] = {
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.start = IRQ_PBX_PMU_CPU1,
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.end = IRQ_PBX_PMU_CPU1,
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = IRQ_PBX_PMU_CPU2,
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.end = IRQ_PBX_PMU_CPU2,
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.flags = IORESOURCE_IRQ,
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},
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[3] = {
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.start = IRQ_PBX_PMU_CPU3,
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.end = IRQ_PBX_PMU_CPU3,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device pmu_device = {
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.name = "arm-pmu",
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2012-07-19 02:50:21 -06:00
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.id = -1,
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2010-04-15 03:16:26 -06:00
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.num_resources = ARRAY_SIZE(pmu_resources),
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.resource = pmu_resources,
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};
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2009-05-30 06:56:12 -06:00
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static void __init gic_init_irq(void)
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{
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/* ARM PBX on-board GIC */
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if (core_tile_pbx11mp() || core_tile_pbxa9mp()) {
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2010-12-04 08:55:14 -07:00
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gic_init(0, 29, __io_address(REALVIEW_PBX_TILE_GIC_DIST_BASE),
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__io_address(REALVIEW_PBX_TILE_GIC_CPU_BASE));
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2009-05-30 06:56:12 -06:00
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} else {
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2010-12-04 08:55:14 -07:00
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gic_init(0, IRQ_PBX_GIC_START,
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__io_address(REALVIEW_PBX_GIC_DIST_BASE),
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__io_address(REALVIEW_PBX_GIC_CPU_BASE));
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2009-05-30 06:56:12 -06:00
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}
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}
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2011-08-04 04:57:04 -06:00
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#ifdef CONFIG_HAVE_ARM_TWD
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static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
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REALVIEW_PBX_TILE_TWD_BASE,
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IRQ_LOCALTIMER);
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static void __init realview_pbx_twd_init(void)
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{
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int err = twd_local_timer_register(&twd_local_timer);
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if (err)
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pr_err("twd_local_timer_register failed %d\n", err);
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}
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#else
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#define realview_pbx_twd_init() do { } while(0)
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#endif
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2009-05-30 06:56:12 -06:00
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static void __init realview_pbx_timer_init(void)
|
|
|
|
{
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|
|
|
timer0_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE);
|
|
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|
timer1_va_base = __io_address(REALVIEW_PBX_TIMER0_1_BASE) + 0x20;
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timer2_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE);
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timer3_va_base = __io_address(REALVIEW_PBX_TIMER2_3_BASE) + 0x20;
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2012-08-06 10:32:08 -06:00
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realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
|
2009-05-30 06:56:12 -06:00
|
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|
realview_timer_init(IRQ_PBX_TIMER0_1);
|
2011-08-04 04:57:04 -06:00
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|
realview_pbx_twd_init();
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2009-05-30 06:56:12 -06:00
|
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|
}
|
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|
|
|
static struct sys_timer realview_pbx_timer = {
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.init = realview_pbx_timer_init,
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|
|
};
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|
|
|
ARM: platform fixups: remove mdesc argument to fixup function
Get rid of the mdesc pointer in the fixup function call. No one uses
the mdesc pointer, it shouldn't be modified anyway, and we can't wrap
it, so let's remove it.
Platform files found by:
$ regexp=$(git grep -h '\.fixup.*=' arch/arm |
sed 's!.*= *\([^,]*\),* *!\1!' | sort -u |
tr '\n' '|' | sed 's,|$,,;s,|,\\|,g')
$ git grep $regexp arch/arm
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 03:37:50 -07:00
|
|
|
static void realview_pbx_fixup(struct tag *tags, char **from,
|
|
|
|
struct meminfo *meminfo)
|
2009-11-04 05:19:05 -07:00
|
|
|
{
|
|
|
|
#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
|
ARM: platform fixups: remove mdesc argument to fixup function
Get rid of the mdesc pointer in the fixup function call. No one uses
the mdesc pointer, it shouldn't be modified anyway, and we can't wrap
it, so let's remove it.
Platform files found by:
$ regexp=$(git grep -h '\.fixup.*=' arch/arm |
sed 's!.*= *\([^,]*\),* *!\1!' | sort -u |
tr '\n' '|' | sed 's,|$,,;s,|,\\|,g')
$ git grep $regexp arch/arm
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 03:37:50 -07:00
|
|
|
realview_fixup(tags, from, meminfo);
|
2009-11-04 05:19:05 -07:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2011-11-03 08:00:13 -06:00
|
|
|
static void realview_pbx_restart(char mode, const char *cmd)
|
2010-01-11 03:09:15 -07:00
|
|
|
{
|
|
|
|
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);
|
2010-01-29 04:52:55 -07:00
|
|
|
__raw_writel(0x00F0, reset_ctrl);
|
|
|
|
__raw_writel(0x00F4, reset_ctrl);
|
2011-11-03 08:00:13 -06:00
|
|
|
dsb();
|
2010-01-11 03:09:15 -07:00
|
|
|
}
|
|
|
|
|
2009-05-30 06:56:12 -06:00
|
|
|
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);
|
2010-04-15 03:16:26 -06:00
|
|
|
platform_device_register(&pmu_device);
|
2009-05-30 06:56:12 -06:00
|
|
|
}
|
|
|
|
#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);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
|
|
|
|
/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
|
2011-07-05 20:38:16 -06:00
|
|
|
.atag_offset = 0x100,
|
2011-09-08 06:15:22 -06:00
|
|
|
.smp = smp_ops(realview_smp_ops),
|
2009-11-04 05:19:05 -07:00
|
|
|
.fixup = realview_pbx_fixup,
|
2009-05-30 06:56:12 -06:00
|
|
|
.map_io = realview_pbx_map_io,
|
2011-01-11 06:05:01 -07:00
|
|
|
.init_early = realview_init_early,
|
2009-05-30 06:56:12 -06:00
|
|
|
.init_irq = gic_init_irq,
|
|
|
|
.timer = &realview_pbx_timer,
|
2011-09-06 03:23:45 -06:00
|
|
|
.handle_irq = gic_handle_irq,
|
2009-05-30 06:56:12 -06:00
|
|
|
.init_machine = realview_pbx_init,
|
2011-07-05 20:28:09 -06:00
|
|
|
#ifdef CONFIG_ZONE_DMA
|
|
|
|
.dma_zone_size = SZ_256M,
|
|
|
|
#endif
|
2011-11-03 08:00:13 -06:00
|
|
|
.restart = realview_pbx_restart,
|
2009-05-30 06:56:12 -06:00
|
|
|
MACHINE_END
|