1 /* 2 * linux/arch/arm/mach-omap2/io.c 3 * 4 * OMAP2 I/O mapping code 5 * 6 * Copyright (C) 2005 Nokia Corporation 7 * Author: Juha Yrj�l� <juha.yrjola@nokia.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License version 2 as 11 * published by the Free Software Foundation. 12 */ 13 14 #include <linux/module.h> 15 #include <linux/kernel.h> 16 #include <linux/init.h> 17 18 #include <asm/tlb.h> 19 #include <asm/io.h> 20 21 #include <asm/mach/map.h> 22 23 #include <asm/arch/mux.h> 24 #include <asm/arch/omapfb.h> 25 26 extern void omap_sram_init(void); 27 extern int omap2_clk_init(void); 28 extern void omap2_check_revision(void); 29 extern void gpmc_init(void); 30 31 /* 32 * The machine specific code may provide the extra mapping besides the 33 * default mapping provided here. 34 */ 35 static struct map_desc omap2_io_desc[] __initdata = { 36 { 37 .virtual = L3_24XX_VIRT, 38 .pfn = __phys_to_pfn(L3_24XX_PHYS), 39 .length = L3_24XX_SIZE, 40 .type = MT_DEVICE 41 }, 42 { 43 .virtual = L4_24XX_VIRT, 44 .pfn = __phys_to_pfn(L4_24XX_PHYS), 45 .length = L4_24XX_SIZE, 46 .type = MT_DEVICE 47 } 48 }; 49 50 void __init omap2_map_common_io(void) 51 { 52 iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc)); 53 54 /* Normally devicemaps_init() would flush caches and tlb after 55 * mdesc->map_io(), but we must also do it here because of the CPU 56 * revision check below. 57 */ 58 local_flush_tlb_all(); 59 flush_cache_all(); 60 61 omap2_check_revision(); 62 omap_sram_init(); 63 omapfb_reserve_mem(); 64 } 65 66 void __init omap2_init_common_hw(void) 67 { 68 omap2_mux_init(); 69 omap2_clk_init(); 70 gpmc_init(); 71 } 72