2008-04-18 15:43:13 -06:00
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/*
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* linux/arch/arm/mach-realview/realview_pb11mp.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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2011-12-21 17:26:03 -07:00
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#include <linux/device.h>
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2008-04-18 15:43:13 -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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2008-09-06 05:10:45 -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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2008-04-18 15:43:13 -06:00
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2008-08-05 09:14:15 -06:00
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#include <mach/hardware.h>
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2008-04-18 15:43:13 -06:00
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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2010-06-21 08:12:40 -06:00
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#include <asm/pgtable.h>
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2008-04-18 15:43:13 -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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2011-08-04 04:57:04 -06:00
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#include <asm/smp_twd.h>
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2008-04-18 15:43:13 -06:00
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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 09:14:15 -06:00
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#include <mach/board-pb11mp.h>
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#include <mach/irqs.h>
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2008-04-18 15:43:13 -06:00
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#include "core.h"
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static struct map_desc realview_pb11mp_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_PB11MP_GIC_CPU_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_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_PB11MP_GIC_DIST_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_GIC_DIST_BASE),
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.length = SZ_4K,
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.type = MT_DEVICE,
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ARM: 7298/1: realview: fix mapping of MPCore private memory region
Since commit 0536bdf33faf (ARM: move iotable mappings within
the vmalloc region), the RealView PB11MP cannot boot anymore.
This is caused by the way the mappings are described on this
platform (define replaced by hex values for clarity):
{ /* GIC CPU interface mapping */
.virtual = IO_ADDRESS(0x1F000100),
.pfn = __phys_to_pfn(0x1F000100),
.length = SZ_4K,
.type = MT_DEVICE,
}, { /* GIC distributor mapping */
.virtual = IO_ADDRESS(0x1F001000),
.pfn = __phys_to_pfn(0x1F001000),
.length = SZ_4K,
.type = MT_DEVICE,
}
The first mapping ends up reserving two pages, and clashes with
the second one, which triggers a BUG_ON in vm_area_add_early().
In order to solve this problem, treat the MPCore private memory
region (containing the SCU, the GIC and the TWD) as a single region,
as described in the TRM:
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0360f/CACGDJJC.html
The EB11MP is converted the same way, even if it manages to avoid
the problem.
Tested on both PB11MP and EB11MP.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-24 03:56:02 -07:00
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}, { /* Maps the SCU, GIC CPU interface, TWD, GIC DIST */
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.virtual = IO_ADDRESS(REALVIEW_TC11MP_PRIV_MEM_BASE),
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.pfn = __phys_to_pfn(REALVIEW_TC11MP_PRIV_MEM_BASE),
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.length = REALVIEW_TC11MP_PRIV_MEM_SIZE,
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2008-04-18 15:43:13 -06:00
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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_PB11MP_TIMER0_1_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_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_PB11MP_TIMER2_3_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_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_TC11MP_L220_BASE),
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.pfn = __phys_to_pfn(REALVIEW_TC11MP_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_PB11MP_UART0_BASE),
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.pfn = __phys_to_pfn(REALVIEW_PB11MP_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_pb11mp_map_io(void)
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{
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iotable_init(realview_pb11mp_io_desc, ARRAY_SIZE(realview_pb11mp_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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2008-04-18 15:43:13 -06:00
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/*
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* RealView PB11MPCore 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_PB11MP_GPIO2 }
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#define GPIO3_IRQ { IRQ_PB11MP_GPIO3 }
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#define AACI_IRQ { IRQ_TC11MP_AACI }
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2008-04-18 15:43:13 -06:00
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#define MMCI0_IRQ { IRQ_TC11MP_MMCI0A, IRQ_TC11MP_MMCI0B }
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2011-12-18 04:40:46 -07:00
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#define KMI0_IRQ { IRQ_TC11MP_KMI0 }
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#define KMI1_IRQ { IRQ_TC11MP_KMI1 }
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#define PB11MP_SMC_IRQ { }
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#define MPMC_IRQ { }
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#define PB11MP_CLCD_IRQ { IRQ_PB11MP_CLCD }
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#define DMAC_IRQ { IRQ_PB11MP_DMAC }
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#define SCTL_IRQ { }
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#define PB11MP_WATCHDOG_IRQ { IRQ_PB11MP_WATCHDOG }
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#define PB11MP_GPIO0_IRQ { IRQ_PB11MP_GPIO0 }
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#define GPIO1_IRQ { IRQ_PB11MP_GPIO1 }
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#define PB11MP_RTC_IRQ { IRQ_TC11MP_RTC }
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#define SCI_IRQ { IRQ_PB11MP_SCI }
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#define PB11MP_UART0_IRQ { IRQ_TC11MP_UART0 }
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#define PB11MP_UART1_IRQ { IRQ_TC11MP_UART1 }
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#define PB11MP_UART2_IRQ { IRQ_PB11MP_UART2 }
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#define PB11MP_UART3_IRQ { IRQ_PB11MP_UART3 }
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#define PB11MP_SSP_IRQ { IRQ_PB11MP_SSP }
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2008-04-18 15:43:13 -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", PB11MP_UART3, NULL);
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2008-04-18 15:43:13 -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", PB11MP_SMC, NULL);
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AHB_DEVICE(sctl, "dev:sctl", SCTL, NULL);
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APB_DEVICE(wdog, "dev:wdog", PB11MP_WATCHDOG, NULL);
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APB_DEVICE(gpio0, "dev:gpio0", PB11MP_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", PB11MP_RTC, NULL);
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APB_DEVICE(sci0, "dev:sci0", SCI, NULL);
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APB_DEVICE(uart0, "dev:uart0", PB11MP_UART0, NULL);
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APB_DEVICE(uart1, "dev:uart1", PB11MP_UART1, NULL);
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APB_DEVICE(uart2, "dev:uart2", PB11MP_UART2, NULL);
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APB_DEVICE(ssp0, "dev:ssp0", PB11MP_SSP, &ssp0_plat_data);
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2008-04-18 15:43:13 -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", PB11MP_CLCD, &clcd_plat_data);
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AHB_DEVICE(dmac, "issp:dmac", DMAC, NULL);
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2008-04-18 15:43:13 -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 PB11MPCore platform devices
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*/
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static struct resource realview_pb11mp_flash_resource[] = {
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[0] = {
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.start = REALVIEW_PB11MP_FLASH0_BASE,
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.end = REALVIEW_PB11MP_FLASH0_BASE + REALVIEW_PB11MP_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_PB11MP_FLASH1_BASE,
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.end = REALVIEW_PB11MP_FLASH1_BASE + REALVIEW_PB11MP_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_pb11mp_smsc911x_resources[] = {
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[0] = {
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.start = REALVIEW_PB11MP_ETH_BASE,
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.end = REALVIEW_PB11MP_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_TC11MP_ETH,
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.end = IRQ_TC11MP_ETH,
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.flags = IORESOURCE_IRQ,
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},
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};
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2009-02-12 08:00:21 -07:00
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static struct resource realview_pb11mp_isp1761_resources[] = {
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[0] = {
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.start = REALVIEW_PB11MP_USB_BASE,
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.end = REALVIEW_PB11MP_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_TC11MP_USB,
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.end = IRQ_TC11MP_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_TC11MP_PMU_CPU0,
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.end = IRQ_TC11MP_PMU_CPU0,
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.flags = IORESOURCE_IRQ,
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},
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[1] = {
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.start = IRQ_TC11MP_PMU_CPU1,
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.end = IRQ_TC11MP_PMU_CPU1,
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = IRQ_TC11MP_PMU_CPU2,
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.end = IRQ_TC11MP_PMU_CPU2,
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.flags = IORESOURCE_IRQ,
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},
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[3] = {
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.start = IRQ_TC11MP_PMU_CPU3,
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.end = IRQ_TC11MP_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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2008-04-18 15:43:13 -06:00
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static void __init gic_init_irq(void)
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{
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unsigned int pldctrl;
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/* new irq mode with no DCC */
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writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
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pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
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pldctrl |= 2 << 22;
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writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_PB11MP_SYS_PLD_CTRL1);
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writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
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/* ARM11MPCore test chip GIC, primary */
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2010-12-04 08:55:14 -07:00
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gic_init(0, 29, __io_address(REALVIEW_TC11MP_GIC_DIST_BASE),
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2010-12-04 09:13:29 -07:00
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__io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
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2008-04-18 15:43:13 -06:00
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/* board GIC, secondary */
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2010-12-04 08:55:14 -07:00
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gic_init(1, IRQ_PB11MP_GIC_START,
|
|
|
|
__io_address(REALVIEW_PB11MP_GIC_DIST_BASE),
|
|
|
|
__io_address(REALVIEW_PB11MP_GIC_CPU_BASE));
|
2008-04-18 15:43:13 -06:00
|
|
|
gic_cascade_irq(1, IRQ_TC11MP_PB_IRQ1);
|
|
|
|
}
|
|
|
|
|
2011-08-04 04:57:04 -06:00
|
|
|
#ifdef CONFIG_HAVE_ARM_TWD
|
|
|
|
static DEFINE_TWD_LOCAL_TIMER(twd_local_timer,
|
|
|
|
REALVIEW_TC11MP_TWD_BASE,
|
|
|
|
IRQ_LOCALTIMER);
|
|
|
|
|
|
|
|
static void __init realview_pb11mp_twd_init(void)
|
|
|
|
{
|
|
|
|
int err = twd_local_timer_register(&twd_local_timer);
|
|
|
|
if (err)
|
|
|
|
pr_err("twd_local_timer_register failed %d\n", err);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
#define realview_pb11mp_twd_init() do {} while(0)
|
|
|
|
#endif
|
|
|
|
|
2008-04-18 15:43:13 -06:00
|
|
|
static void __init realview_pb11mp_timer_init(void)
|
|
|
|
{
|
|
|
|
timer0_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE);
|
|
|
|
timer1_va_base = __io_address(REALVIEW_PB11MP_TIMER0_1_BASE) + 0x20;
|
|
|
|
timer2_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE);
|
|
|
|
timer3_va_base = __io_address(REALVIEW_PB11MP_TIMER2_3_BASE) + 0x20;
|
|
|
|
|
2012-08-06 10:32:08 -06:00
|
|
|
realview_clk_init(__io_address(REALVIEW_SYS_BASE), false);
|
2008-04-18 15:43:13 -06:00
|
|
|
realview_timer_init(IRQ_TC11MP_TIMER0_1);
|
2011-08-04 04:57:04 -06:00
|
|
|
realview_pb11mp_twd_init();
|
2008-04-18 15:43:13 -06:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct sys_timer realview_pb11mp_timer = {
|
|
|
|
.init = realview_pb11mp_timer_init,
|
|
|
|
};
|
|
|
|
|
2011-11-03 08:00:13 -06:00
|
|
|
static void realview_pb11mp_restart(char mode, const char *cmd)
|
2009-10-28 12:09:12 -06:00
|
|
|
{
|
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);
|
2009-10-28 12:09:12 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* To reset, we hit the on-board reset register
|
|
|
|
* in the system FPGA
|
|
|
|
*/
|
2010-01-11 03:09:15 -07:00
|
|
|
__raw_writel(REALVIEW_SYS_LOCK_VAL, lock_ctrl);
|
|
|
|
__raw_writel(0x0000, reset_ctrl);
|
|
|
|
__raw_writel(0x0004, reset_ctrl);
|
2011-11-03 08:00:13 -06:00
|
|
|
dsb();
|
2009-10-28 12:09:12 -06:00
|
|
|
}
|
|
|
|
|
2008-04-18 15:43:13 -06:00
|
|
|
static void __init realview_pb11mp_init(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
2008-04-18 15:43:17 -06:00
|
|
|
#ifdef CONFIG_CACHE_L2X0
|
2008-04-18 15:43:13 -06:00
|
|
|
/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
|
|
|
|
* Bits: .... ...0 0111 1001 0000 .... .... .... */
|
|
|
|
l2x0_init(__io_address(REALVIEW_TC11MP_L220_BASE), 0x00790000, 0xfe000fff);
|
2008-04-18 15:43:17 -06:00
|
|
|
#endif
|
2008-04-18 15:43:13 -06:00
|
|
|
|
|
|
|
realview_flash_register(realview_pb11mp_flash_resource,
|
|
|
|
ARRAY_SIZE(realview_pb11mp_flash_resource));
|
2008-12-01 07:54:58 -07:00
|
|
|
realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
|
2008-04-18 15:43:13 -06:00
|
|
|
platform_device_register(&realview_i2c_device);
|
2009-02-12 07:59:21 -07:00
|
|
|
platform_device_register(&realview_cf_device);
|
2009-02-12 08:00:21 -07:00
|
|
|
realview_usb_register(realview_pb11mp_isp1761_resources);
|
2010-04-15 03:16:26 -06:00
|
|
|
platform_device_register(&pmu_device);
|
2008-04-18 15:43:13 -06:00
|
|
|
|
|
|
|
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_PB11MP, "ARM-RealView PB11MPCore")
|
|
|
|
/* 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 05:19:04 -07:00
|
|
|
.fixup = realview_fixup,
|
2008-04-18 15:43:13 -06:00
|
|
|
.map_io = realview_pb11mp_map_io,
|
2011-01-11 06:05:01 -07:00
|
|
|
.init_early = realview_init_early,
|
2008-04-18 15:43:13 -06:00
|
|
|
.init_irq = gic_init_irq,
|
|
|
|
.timer = &realview_pb11mp_timer,
|
2011-09-06 03:23:45 -06:00
|
|
|
.handle_irq = gic_handle_irq,
|
2008-04-18 15:43:13 -06:00
|
|
|
.init_machine = realview_pb11mp_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_pb11mp_restart,
|
2008-04-18 15:43:13 -06:00
|
|
|
MACHINE_END
|