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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>
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
Tony Lindgren1dbae812005-11-10 14:26:51 +000014#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17
Tony Lindgren120db2c2006-04-02 17:46:27 +010018#include <asm/tlb.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000019#include <asm/io.h>
Tony Lindgren120db2c2006-04-02 17:46:27 +010020
21#include <asm/mach/map.h>
22
Tony Lindgren1dbae812005-11-10 14:26:51 +000023#include <asm/arch/mux.h>
Tony Lindgren120db2c2006-04-02 17:46:27 +010024#include <asm/arch/omapfb.h>
Tony Lindgren1dbae812005-11-10 14:26:51 +000025
26extern void omap_sram_init(void);
27extern int omap2_clk_init(void);
28extern void omap2_check_revision(void);
Juha Yrjola4bbbc1a2006-06-26 16:16:16 -070029extern void gpmc_init(void);
Imre Deakb7cc6d42007-03-06 03:16:36 -080030extern void omapfb_reserve_sdram(void);
Tony Lindgren1dbae812005-11-10 14:26:51 +000031
32/*
33 * The machine specific code may provide the extra mapping besides the
34 * default mapping provided here.
35 */
36static struct map_desc omap2_io_desc[] __initdata = {
37 {
38 .virtual = L3_24XX_VIRT,
39 .pfn = __phys_to_pfn(L3_24XX_PHYS),
40 .length = L3_24XX_SIZE,
41 .type = MT_DEVICE
42 },
43 {
Tony Lindgrenc40fae92006-12-07 13:58:10 -080044 .virtual = DSP_MEM_24XX_VIRT,
45 .pfn = __phys_to_pfn(DSP_MEM_24XX_PHYS),
46 .length = DSP_MEM_24XX_SIZE,
47 .type = MT_DEVICE
48 },
49 {
50 .virtual = DSP_IPI_24XX_VIRT,
51 .pfn = __phys_to_pfn(DSP_IPI_24XX_PHYS),
52 .length = DSP_IPI_24XX_SIZE,
53 .type = MT_DEVICE
54 },
55 {
56 .virtual = DSP_MMU_24XX_VIRT,
57 .pfn = __phys_to_pfn(DSP_MMU_24XX_PHYS),
58 .length = DSP_MMU_24XX_SIZE,
Tony Lindgren1dbae812005-11-10 14:26:51 +000059 .type = MT_DEVICE
60 }
61};
62
Tony Lindgren120db2c2006-04-02 17:46:27 +010063void __init omap2_map_common_io(void)
Tony Lindgren1dbae812005-11-10 14:26:51 +000064{
65 iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
Tony Lindgren120db2c2006-04-02 17:46:27 +010066
67 /* Normally devicemaps_init() would flush caches and tlb after
68 * mdesc->map_io(), but we must also do it here because of the CPU
69 * revision check below.
70 */
71 local_flush_tlb_all();
72 flush_cache_all();
73
Tony Lindgren1dbae812005-11-10 14:26:51 +000074 omap2_check_revision();
75 omap_sram_init();
Imre Deakb7cc6d42007-03-06 03:16:36 -080076 omapfb_reserve_sdram();
Tony Lindgren120db2c2006-04-02 17:46:27 +010077}
78
79void __init omap2_init_common_hw(void)
80{
Tony Lindgren1dbae812005-11-10 14:26:51 +000081 omap2_mux_init();
82 omap2_clk_init();
Juha Yrjola4bbbc1a2006-06-26 16:16:16 -070083 gpmc_init();
Tony Lindgren1dbae812005-11-10 14:26:51 +000084}