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Eric Miao49cbe782009-01-20 14:15:18 +08001/*
2 * linux/arch/arm/mach-mmp/common.c
3 *
4 * Code common to PXA168 processor lines
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/init.h>
12#include <linux/kernel.h>
Haojian Zhuangf090c742010-09-21 16:43:57 +080013#include <linux/module.h>
Eric Miao49cbe782009-01-20 14:15:18 +080014
15#include <asm/page.h>
16#include <asm/mach/map.h>
David Howells9f97da72012-03-28 18:30:01 +010017#include <asm/system_misc.h>
Eric Miao49cbe782009-01-20 14:15:18 +080018#include <mach/addr-map.h>
Haojian Zhuangf090c742010-09-21 16:43:57 +080019#include <mach/cputype.h>
Eric Miao49cbe782009-01-20 14:15:18 +080020
21#include "common.h"
22
Haojian Zhuangf090c742010-09-21 16:43:57 +080023#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00)
24
25unsigned int mmp_chip_id;
26EXPORT_SYMBOL(mmp_chip_id);
27
Eric Miao49cbe782009-01-20 14:15:18 +080028static struct map_desc standard_io_desc[] __initdata = {
29 {
30 .pfn = __phys_to_pfn(APB_PHYS_BASE),
Arnd Bergmann97b09da2011-10-01 22:03:45 +020031 .virtual = (unsigned long)APB_VIRT_BASE,
Eric Miao49cbe782009-01-20 14:15:18 +080032 .length = APB_PHYS_SIZE,
33 .type = MT_DEVICE,
34 }, {
35 .pfn = __phys_to_pfn(AXI_PHYS_BASE),
Arnd Bergmann97b09da2011-10-01 22:03:45 +020036 .virtual = (unsigned long)AXI_VIRT_BASE,
Eric Miao49cbe782009-01-20 14:15:18 +080037 .length = AXI_PHYS_SIZE,
38 .type = MT_DEVICE,
39 },
40};
41
Eric Miao80228872010-07-15 17:50:13 +080042void __init mmp_map_io(void)
Eric Miao49cbe782009-01-20 14:15:18 +080043{
44 iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
Haojian Zhuangf090c742010-09-21 16:43:57 +080045
46 /* this is early, initialize mmp_chip_id here */
47 mmp_chip_id = __raw_readl(MMP_CHIPID);
Eric Miao49cbe782009-01-20 14:15:18 +080048}
Russell King9854a382011-11-05 15:40:09 +000049
50void mmp_restart(char mode, const char *cmd)
51{
52 soft_restart(0);
53}