Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 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> |
Haojian Zhuang | f090c74 | 2010-09-21 16:43:57 +0800 | [diff] [blame] | 13 | #include <linux/module.h> |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 14 | |
| 15 | #include <asm/page.h> |
| 16 | #include <asm/mach/map.h> |
David Howells | 9f97da7 | 2012-03-28 18:30:01 +0100 | [diff] [blame] | 17 | #include <asm/system_misc.h> |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 18 | #include <mach/addr-map.h> |
Haojian Zhuang | f090c74 | 2010-09-21 16:43:57 +0800 | [diff] [blame] | 19 | #include <mach/cputype.h> |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 20 | |
| 21 | #include "common.h" |
| 22 | |
Haojian Zhuang | f090c74 | 2010-09-21 16:43:57 +0800 | [diff] [blame] | 23 | #define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00) |
| 24 | |
| 25 | unsigned int mmp_chip_id; |
| 26 | EXPORT_SYMBOL(mmp_chip_id); |
| 27 | |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 28 | static struct map_desc standard_io_desc[] __initdata = { |
| 29 | { |
| 30 | .pfn = __phys_to_pfn(APB_PHYS_BASE), |
Arnd Bergmann | 97b09da | 2011-10-01 22:03:45 +0200 | [diff] [blame] | 31 | .virtual = (unsigned long)APB_VIRT_BASE, |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 32 | .length = APB_PHYS_SIZE, |
| 33 | .type = MT_DEVICE, |
| 34 | }, { |
| 35 | .pfn = __phys_to_pfn(AXI_PHYS_BASE), |
Arnd Bergmann | 97b09da | 2011-10-01 22:03:45 +0200 | [diff] [blame] | 36 | .virtual = (unsigned long)AXI_VIRT_BASE, |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 37 | .length = AXI_PHYS_SIZE, |
| 38 | .type = MT_DEVICE, |
| 39 | }, |
| 40 | }; |
| 41 | |
Eric Miao | 8022887 | 2010-07-15 17:50:13 +0800 | [diff] [blame] | 42 | void __init mmp_map_io(void) |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 43 | { |
| 44 | iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc)); |
Haojian Zhuang | f090c74 | 2010-09-21 16:43:57 +0800 | [diff] [blame] | 45 | |
| 46 | /* this is early, initialize mmp_chip_id here */ |
| 47 | mmp_chip_id = __raw_readl(MMP_CHIPID); |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 48 | } |
Russell King | 9854a38 | 2011-11-05 15:40:09 +0000 | [diff] [blame] | 49 | |
| 50 | void mmp_restart(char mode, const char *cmd) |
| 51 | { |
| 52 | soft_restart(0); |
| 53 | } |