summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap2/devices.c
blob: def9e5370edfb3554f146871552f731c4b01e62a (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
/*
 * linux/arch/arm/mach-omap2/devices.c
 *
 * OMAP2 platform device setup/initialization
 *
 * 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.
 */

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

#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>

#include <asm/arch/tc.h>
#include <asm/arch/board.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>

extern void omap_nop_release(struct device *dev);

/*-------------------------------------------------------------------------*/

#if 	defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)

#define OMAP2_I2C_BASE2		0x48072000
#define OMAP2_I2C_INT2		57

static struct resource i2c_resources2[] = {
	{
		.start		= OMAP2_I2C_BASE2,
		.end		= OMAP2_I2C_BASE2 + 0x3f,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= OMAP2_I2C_INT2,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct platform_device omap_i2c_device2 = {
        .name           = "i2c_omap",
        .id             = 2,
        .dev = {
                .release        = omap_nop_release,
        },
	.num_resources	= ARRAY_SIZE(i2c_resources2),
	.resource	= i2c_resources2,
};

/* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */
static void omap_init_i2c(void)
{
	/* REVISIT: Second I2C not in use on H4? */
	if (machine_is_omap_h4())
		return;

	omap_cfg_reg(J15_24XX_I2C2_SCL);
	omap_cfg_reg(H19_24XX_I2C2_SDA);
	(void) platform_device_register(&omap_i2c_device2);
}

#else

static void omap_init_i2c(void) {}

#endif

#if defined(CONFIG_OMAP_STI)

#define OMAP2_STI_BASE		IO_ADDRESS(0x48068000)
#define OMAP2_STI_CHANNEL_BASE	0x54000000
#define OMAP2_STI_IRQ		4

static struct resource sti_resources[] = {
	{
		.start		= OMAP2_STI_BASE,
		.end		= OMAP2_STI_BASE + 0x7ff,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= OMAP2_STI_CHANNEL_BASE,
		.end		= OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
		.flags		= IORESOURCE_MEM,
	},
	{
		.start		= OMAP2_STI_IRQ,
		.flags		= IORESOURCE_IRQ,
	}
};

static struct platform_device sti_device = {
	.name		= "sti",
	.id		= -1,
	.dev = {
		.release	= omap_nop_release,
	},
	.num_resources	= ARRAY_SIZE(sti_resources),
	.resource	= sti_resources,
};

static inline void omap_init_sti(void)
{
	platform_device_register(&sti_device);
}
#else
static inline void omap_init_sti(void) {}
#endif

/*-------------------------------------------------------------------------*/

static int __init omap2_init_devices(void)
{
	/* please keep these calls, and their implementations above,
	 * in alphabetical order so they're easier to sort through.
	 */
	omap_init_i2c();
	omap_init_sti();

	return 0;
}
arch_initcall(omap2_init_devices);