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 "addr-map.h" 19 #include "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 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 50 void mmp_restart(enum reboot_mode mode, const char *cmd) 51 { 52 soft_restart(0); 53 } 54