aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/plat-omap/fb.c
blob: a3367b783fc7f84c973a2dea20526dd7fc9d0a66 (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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
 * File: arch/arm/plat-omap/fb.c
 *
 * Framebuffer device registration for TI OMAP platforms
 *
 * Copyright (C) 2006 Nokia Corporation
 * Author: Imre Deak <imre.deak@nokia.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/memblock.h>
#include <linux/io.h>
#include <linux/omapfb.h>
#include <linux/dma-mapping.h>

#include <asm/mach/map.h>

#include <plat/cpu.h>

#ifdef CONFIG_OMAP2_VRFB

/*
 * The first memory resource is the register region for VRFB,
 * the rest are VRFB virtual memory areas for each VRFB context.
 */

static const struct resource omap2_vrfb_resources[] = {
	DEFINE_RES_MEM_NAMED(0x68008000u, 0x40, "vrfb-regs"),
	DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
	DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
	DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
	DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
};

static const struct resource omap3_vrfb_resources[] = {
	DEFINE_RES_MEM_NAMED(0x6C000180u, 0xc0, "vrfb-regs"),
	DEFINE_RES_MEM_NAMED(0x70000000u, 0x4000000, "vrfb-area-0"),
	DEFINE_RES_MEM_NAMED(0x74000000u, 0x4000000, "vrfb-area-1"),
	DEFINE_RES_MEM_NAMED(0x78000000u, 0x4000000, "vrfb-area-2"),
	DEFINE_RES_MEM_NAMED(0x7c000000u, 0x4000000, "vrfb-area-3"),
	DEFINE_RES_MEM_NAMED(0xe0000000u, 0x4000000, "vrfb-area-4"),
	DEFINE_RES_MEM_NAMED(0xe4000000u, 0x4000000, "vrfb-area-5"),
	DEFINE_RES_MEM_NAMED(0xe8000000u, 0x4000000, "vrfb-area-6"),
	DEFINE_RES_MEM_NAMED(0xec000000u, 0x4000000, "vrfb-area-7"),
	DEFINE_RES_MEM_NAMED(0xf0000000u, 0x4000000, "vrfb-area-8"),
	DEFINE_RES_MEM_NAMED(0xf4000000u, 0x4000000, "vrfb-area-9"),
	DEFINE_RES_MEM_NAMED(0xf8000000u, 0x4000000, "vrfb-area-10"),
	DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
};

static int __init omap_init_vrfb(void)
{
	struct platform_device *pdev;
	const struct resource *res;
	unsigned int num_res;

	if (cpu_is_omap24xx()) {
		res = omap2_vrfb_resources;
		num_res = ARRAY_SIZE(omap2_vrfb_resources);
	} else if (cpu_is_omap34xx()) {
		res = omap3_vrfb_resources;
		num_res = ARRAY_SIZE(omap3_vrfb_resources);
	} else {
		return 0;
	}

	pdev = platform_device_register_resndata(NULL, "omapvrfb", -1,
			res, num_res, NULL, 0);

	if (IS_ERR(pdev))
		return PTR_ERR(pdev);
	else
		return 0;
}

arch_initcall(omap_init_vrfb);
#endif

#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)

static bool omapfb_lcd_configured;
static struct omapfb_platform_data omapfb_config;

static u64 omap_fb_dma_mask = ~(u32)0;

static struct platform_device omap_fb_device = {
	.name		= "omapfb",
	.id		= -1,
	.dev = {
		.dma_mask		= &omap_fb_dma_mask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
		.platform_data		= &omapfb_config,
	},
	.num_resources = 0,
};

void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
{
	omapfb_config.lcd = *config;
	omapfb_lcd_configured = true;
}

static int __init omap_init_fb(void)
{
	/*
	 * If the board file has not set the lcd config with
	 * omapfb_set_lcd_config(), don't bother registering the omapfb device
	 */
	if (!omapfb_lcd_configured)
		return 0;

	return platform_device_register(&omap_fb_device);
}

arch_initcall(omap_init_fb);

#elif defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)

static u64 omap_fb_dma_mask = ~(u32)0;
static struct omapfb_platform_data omapfb_config;

static struct platform_device omap_fb_device = {
	.name		= "omapfb",
	.id		= -1,
	.dev = {
		.dma_mask		= &omap_fb_dma_mask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
		.platform_data		= &omapfb_config,
	},
	.num_resources = 0,
};

static int __init omap_init_fb(void)
{
	return platform_device_register(&omap_fb_device);
}

arch_initcall(omap_init_fb);

#else

void __init omapfb_set_lcd_config(const struct omap_lcd_config *config)
{
}

#endif