1 /* 2 * linux/arch/arm/mach-omap2/io.c 3 * 4 * OMAP2 I/O mapping code 5 * 6 * Copyright (C) 2005 Nokia Corporation 7 * Copyright (C) 2007 Texas Instruments 8 * 9 * Author: 10 * Juha Yrjola <juha.yrjola@nokia.com> 11 * Syed Khasim <x0khasim@ti.com> 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License version 2 as 15 * published by the Free Software Foundation. 16 */ 17 18 #include <linux/module.h> 19 #include <linux/kernel.h> 20 #include <linux/init.h> 21 22 #include <asm/tlb.h> 23 #include <asm/io.h> 24 25 #include <asm/mach/map.h> 26 27 #include <mach/mux.h> 28 #include <mach/omapfb.h> 29 #include <mach/sram.h> 30 31 #include "memory.h" 32 33 #include "clock.h" 34 35 #include <mach/powerdomain.h> 36 37 #include "powerdomains.h" 38 39 #include <mach/clockdomain.h> 40 #include "clockdomains.h" 41 42 /* 43 * The machine specific code may provide the extra mapping besides the 44 * default mapping provided here. 45 */ 46 static struct map_desc omap2_io_desc[] __initdata = { 47 { 48 .virtual = L3_24XX_VIRT, 49 .pfn = __phys_to_pfn(L3_24XX_PHYS), 50 .length = L3_24XX_SIZE, 51 .type = MT_DEVICE 52 }, 53 { 54 .virtual = L4_24XX_VIRT, 55 .pfn = __phys_to_pfn(L4_24XX_PHYS), 56 .length = L4_24XX_SIZE, 57 .type = MT_DEVICE 58 }, 59 #ifdef CONFIG_ARCH_OMAP2430 60 { 61 .virtual = L4_WK_243X_VIRT, 62 .pfn = __phys_to_pfn(L4_WK_243X_PHYS), 63 .length = L4_WK_243X_SIZE, 64 .type = MT_DEVICE 65 }, 66 { 67 .virtual = OMAP243X_GPMC_VIRT, 68 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), 69 .length = OMAP243X_GPMC_SIZE, 70 .type = MT_DEVICE 71 }, 72 #endif 73 { 74 .virtual = DSP_MEM_24XX_VIRT, 75 .pfn = __phys_to_pfn(DSP_MEM_24XX_PHYS), 76 .length = DSP_MEM_24XX_SIZE, 77 .type = MT_DEVICE 78 }, 79 { 80 .virtual = DSP_IPI_24XX_VIRT, 81 .pfn = __phys_to_pfn(DSP_IPI_24XX_PHYS), 82 .length = DSP_IPI_24XX_SIZE, 83 .type = MT_DEVICE 84 }, 85 { 86 .virtual = DSP_MMU_24XX_VIRT, 87 .pfn = __phys_to_pfn(DSP_MMU_24XX_PHYS), 88 .length = DSP_MMU_24XX_SIZE, 89 .type = MT_DEVICE 90 } 91 }; 92 93 void __init omap2_map_common_io(void) 94 { 95 iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc)); 96 97 /* Normally devicemaps_init() would flush caches and tlb after 98 * mdesc->map_io(), but we must also do it here because of the CPU 99 * revision check below. 100 */ 101 local_flush_tlb_all(); 102 flush_cache_all(); 103 104 omap2_check_revision(); 105 omap_sram_init(); 106 omapfb_reserve_sdram(); 107 } 108 109 void __init omap2_init_common_hw(void) 110 { 111 omap2_mux_init(); 112 pwrdm_init(powerdomains_omap); 113 clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps); 114 omap2_clk_init(); 115 /* 116 * Need to Fix this for 2430 117 */ 118 #ifndef CONFIG_ARCH_OMAP2430 119 omap2_init_memory(); 120 #endif 121 gpmc_init(); 122 } 123