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1 /*
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>
13 #include <linux/module.h>
14 
15 #include <asm/page.h>
16 #include <asm/mach/map.h>
17 #include <asm/system_misc.h>
18 #include <mach/addr-map.h>
19 #include <mach/cputype.h>
20 
21 #include "common.h"
22 
23 #define MMP_CHIPID	(AXI_VIRT_BASE + 0x82c00)
24 
25 unsigned int mmp_chip_id;
26 EXPORT_SYMBOL(mmp_chip_id);
27 
28 static struct map_desc standard_io_desc[] __initdata = {
29 	{
30 		.pfn		= __phys_to_pfn(APB_PHYS_BASE),
31 		.virtual	= (unsigned long)APB_VIRT_BASE,
32 		.length		= APB_PHYS_SIZE,
33 		.type		= MT_DEVICE,
34 	}, {
35 		.pfn		= __phys_to_pfn(AXI_PHYS_BASE),
36 		.virtual	= (unsigned long)AXI_VIRT_BASE,
37 		.length		= AXI_PHYS_SIZE,
38 		.type		= MT_DEVICE,
39 	},
40 };
41 
mmp_map_io(void)42 void __init mmp_map_io(void)
43 {
44 	iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
45 
46 	/* this is early, initialize mmp_chip_id here */
47 	mmp_chip_id = __raw_readl(MMP_CHIPID);
48 }
49 
mmp_restart(enum reboot_mode mode,const char * cmd)50 void mmp_restart(enum reboot_mode mode, const char *cmd)
51 {
52 	soft_restart(0);
53 }
54