summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/io.c
blob: 5a4091f582edc23aeafc051785898547a1decc8f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
/*
 * linux/arch/arm/mach-omap2/io.c
 *
 * OMAP2 I/O mapping code
 *
 * Copyright (C) 2005 Nokia Corporation
 * Author: Juha Yrjölä <juha.yrjola@nokia.com>
 * Updated map desc to add 2430 support : <x0khasim@ti.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>

#include <asm/tlb.h>
#include <asm/io.h>

#include <asm/mach/map.h>

#include <asm/arch/mux.h>
#include <asm/arch/omapfb.h>

extern void omap_sram_init(void);
extern int omap2_clk_init(void);
extern void omap2_check_revision(void);
extern void omap2_init_memory(void);
extern void gpmc_init(void);
extern void omapfb_reserve_sdram(void);

/*
 * The machine specific code may provide the extra mapping besides the
 * default mapping provided here.
 */
static struct map_desc omap2_io_desc[] __initdata = {
	{
		.virtual	= L3_24XX_VIRT,
		.pfn		= __phys_to_pfn(L3_24XX_PHYS),
		.length		= L3_24XX_SIZE,
		.type		= MT_DEVICE
	},
#ifdef CONFIG_ARCH_OMAP2430
	{
		.virtual	= L4_WK_243X_VIRT,
		.pfn		= __phys_to_pfn(L4_WK_243X_PHYS),
		.length		= L4_WK_243X_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= OMAP243X_GPMC_VIRT,
		.pfn		= __phys_to_pfn(OMAP243X_GPMC_PHYS),
		.length		= OMAP243X_GPMC_SIZE,
		.type		= MT_DEVICE
	},
#endif
	{
		.virtual	= DSP_MEM_24XX_VIRT,
		.pfn		= __phys_to_pfn(DSP_MEM_24XX_PHYS),
		.length		= DSP_MEM_24XX_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= DSP_IPI_24XX_VIRT,
		.pfn		= __phys_to_pfn(DSP_IPI_24XX_PHYS),
		.length		= DSP_IPI_24XX_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= DSP_MMU_24XX_VIRT,
		.pfn		= __phys_to_pfn(DSP_MMU_24XX_PHYS),
		.length		= DSP_MMU_24XX_SIZE,
		.type		= MT_DEVICE
	}
};

void __init omap2_map_common_io(void)
{
	iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));

	/* Normally devicemaps_init() would flush caches and tlb after
	 * mdesc->map_io(), but we must also do it here because of the CPU
	 * revision check below.
	 */
	local_flush_tlb_all();
	flush_cache_all();

	omap2_check_revision();
	omap_sram_init();
	omapfb_reserve_sdram();
}

void __init omap2_init_common_hw(void)
{
	omap2_mux_init();
	omap2_clk_init();
/*
 * Need to Fix this for 2430
 */
#ifndef CONFIG_ARCH_OMAP2430
	omap2_init_memory();
#endif
	gpmc_init();
}
OpenPOWER on IntegriCloud