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Tony Lindgren1dbae812005-11-10 14:26:51 +00001/*
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 Yrjölä <juha.yrjola@nokia.com>
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -08008 * Updated map desc to add 2430 support : <x0khasim@ti.com>
Tony Lindgren1dbae812005-11-10 14:26:51 +00009 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
Tony Lindgren1dbae812005-11-10 14:26:51 +000015#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
Russell Kingfced80c2008-09-06 12:10:45 +010018#include <linux/io.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000019
Tony Lindgren120db2c2006-04-02 17:46:27 +010020#include <asm/tlb.h>
Tony Lindgren120db2c2006-04-02 17:46:27 +010021
22#include <asm/mach/map.h>
23
Russell Kinga09e64f2008-08-05 16:14:15 +010024#include <mach/mux.h>
25#include <mach/omapfb.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000026
27extern void omap_sram_init(void);
28extern int omap2_clk_init(void);
29extern void omap2_check_revision(void);
Juha Yrjola33c99072006-12-06 17:13:46 -080030extern void omap2_init_memory(void);
Juha Yrjola4bbbc1a2006-06-26 16:16:16 -070031extern void gpmc_init(void);
Imre Deakb7cc6d42007-03-06 03:16:36 -080032extern void omapfb_reserve_sdram(void);
Tony Lindgren1dbae812005-11-10 14:26:51 +000033
34/*
35 * The machine specific code may provide the extra mapping besides the
36 * default mapping provided here.
37 */
38static struct map_desc omap2_io_desc[] __initdata = {
39 {
40 .virtual = L3_24XX_VIRT,
41 .pfn = __phys_to_pfn(L3_24XX_PHYS),
42 .length = L3_24XX_SIZE,
43 .type = MT_DEVICE
44 },
Kyungmin Park09f21ed2008-02-20 15:30:06 -080045 {
46 .virtual = L4_24XX_VIRT,
47 .pfn = __phys_to_pfn(L4_24XX_PHYS),
48 .length = L4_24XX_SIZE,
49 .type = MT_DEVICE
50 },
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -080051#ifdef CONFIG_ARCH_OMAP2430
52 {
53 .virtual = L4_WK_243X_VIRT,
54 .pfn = __phys_to_pfn(L4_WK_243X_PHYS),
55 .length = L4_WK_243X_SIZE,
56 .type = MT_DEVICE
57 },
58 {
59 .virtual = OMAP243X_GPMC_VIRT,
60 .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS),
61 .length = OMAP243X_GPMC_SIZE,
62 .type = MT_DEVICE
63 },
64#endif
Tony Lindgren1dbae812005-11-10 14:26:51 +000065 {
Tony Lindgrenc40fae952006-12-07 13:58:10 -080066 .virtual = DSP_MEM_24XX_VIRT,
67 .pfn = __phys_to_pfn(DSP_MEM_24XX_PHYS),
68 .length = DSP_MEM_24XX_SIZE,
69 .type = MT_DEVICE
70 },
71 {
72 .virtual = DSP_IPI_24XX_VIRT,
73 .pfn = __phys_to_pfn(DSP_IPI_24XX_PHYS),
74 .length = DSP_IPI_24XX_SIZE,
75 .type = MT_DEVICE
76 },
77 {
78 .virtual = DSP_MMU_24XX_VIRT,
79 .pfn = __phys_to_pfn(DSP_MMU_24XX_PHYS),
80 .length = DSP_MMU_24XX_SIZE,
Tony Lindgren1dbae812005-11-10 14:26:51 +000081 .type = MT_DEVICE
82 }
83};
84
Tony Lindgren120db2c2006-04-02 17:46:27 +010085void __init omap2_map_common_io(void)
Tony Lindgren1dbae812005-11-10 14:26:51 +000086{
87 iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
Tony Lindgren120db2c2006-04-02 17:46:27 +010088
89 /* Normally devicemaps_init() would flush caches and tlb after
90 * mdesc->map_io(), but we must also do it here because of the CPU
91 * revision check below.
92 */
93 local_flush_tlb_all();
94 flush_cache_all();
95
Tony Lindgren1dbae812005-11-10 14:26:51 +000096 omap2_check_revision();
97 omap_sram_init();
Imre Deakb7cc6d42007-03-06 03:16:36 -080098 omapfb_reserve_sdram();
Tony Lindgren120db2c2006-04-02 17:46:27 +010099}
100
101void __init omap2_init_common_hw(void)
102{
Tony Lindgren1dbae812005-11-10 14:26:51 +0000103 omap2_mux_init();
104 omap2_clk_init();
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -0800105/*
106 * Need to Fix this for 2430
107 */
108#ifndef CONFIG_ARCH_OMAP2430
Juha Yrjola33c99072006-12-06 17:13:46 -0800109 omap2_init_memory();
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -0800110#endif
Juha Yrjola4bbbc1a2006-06-26 16:16:16 -0700111 gpmc_init();
Tony Lindgren1dbae812005-11-10 14:26:51 +0000112}