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