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