aa44ef4d43
Adds core support for the ST-Ericsson U8500 platform. It supports memory mappings, binds to the existing modules like GIC, SCU, TWD and local timers and sets up the infrastructure for the secondary core. Reviewed-by: Alessandro Rubini <rubini@unipv.it> Reviewed-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: srinidhi kasagar <srinidhi.kasagar@stericsson.com> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* Copyright (C) 2008-2009 ST-Ericsson
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*
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* Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
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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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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/amba/bus.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <asm/hardware/gic.h>
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#include <asm/mach/map.h>
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#include <mach/hardware.h>
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/* add any platform devices here - TODO */
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static struct platform_device *platform_devs[] __initdata = {
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/* yet to be added, add i2c0, gpio.. */
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};
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#define __IO_DEV_DESC(x, sz) { \
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.virtual = IO_ADDRESS(x), \
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.pfn = __phys_to_pfn(x), \
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.length = sz, \
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.type = MT_DEVICE, \
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}
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/* minimum static i/o mapping required to boot U8500 platforms */
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static struct map_desc u8500_io_desc[] __initdata = {
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__IO_DEV_DESC(U8500_GIC_CPU_BASE, SZ_4K),
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__IO_DEV_DESC(U8500_GIC_DIST_BASE, SZ_4K),
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__IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
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__IO_DEV_DESC(U8500_TWD_BASE, SZ_4K),
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__IO_DEV_DESC(U8500_SCU_BASE, SZ_4K),
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__IO_DEV_DESC(U8500_BACKUPRAM0_BASE, SZ_8K),
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};
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void __init u8500_map_io(void)
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{
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iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
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}
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void __init u8500_init_irq(void)
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{
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gic_dist_init(0, __io_address(U8500_GIC_DIST_BASE), 29);
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gic_cpu_init(0, __io_address(U8500_GIC_CPU_BASE));
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}
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/*
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* This function is called from the board init
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*/
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void __init u8500_init_devices(void)
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{
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/* Register the platform devices */
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platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
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return ;
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}
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