aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap1/gpio7xx.c
blob: 5ab63eab0ff5f18b52476172d90db7ee0d6afeeb (plain) (blame)
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
/*
 * OMAP7xx specific gpio init
 *
 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Author:
 *	Charulatha V <charu@ti.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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/gpio.h>

#define OMAP7XX_GPIO1_BASE		0xfffbc000
#define OMAP7XX_GPIO2_BASE		0xfffbc800
#define OMAP7XX_GPIO3_BASE		0xfffbd000
#define OMAP7XX_GPIO4_BASE		0xfffbd800
#define OMAP7XX_GPIO5_BASE		0xfffbe000
#define OMAP7XX_GPIO6_BASE		0xfffbe800
#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE

/* mpu gpio */
static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
	{
		.start	= OMAP1_MPUIO_VBASE,
		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_MPUIO,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
	.revision	= USHRT_MAX,
	.direction	= OMAP_MPUIO_IO_CNTL / 2,
	.datain		= OMAP_MPUIO_INPUT_LATCH / 2,
	.dataout	= OMAP_MPUIO_OUTPUT / 2,
	.irqstatus	= OMAP_MPUIO_GPIO_INT / 2,
	.irqenable	= OMAP_MPUIO_GPIO_MASKIT / 2,
	.irqenable_inv	= true,
};

static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
	.virtual_irq_start	= IH_MPUIO_BASE,
	.bank_type		= METHOD_MPUIO,
	.bank_width		= 32,
	.bank_stride		= 2,
	.regs                   = &omap7xx_mpuio_regs,
};

static struct platform_device omap7xx_mpu_gpio = {
	.name           = "omap_gpio",
	.id             = 0,
	.dev            = {
		.platform_data = &omap7xx_mpu_gpio_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
	.resource = omap7xx_mpu_gpio_resources,
};

/* gpio1 */
static struct __initdata resource omap7xx_gpio1_resources[] = {
	{
		.start	= OMAP7XX_GPIO1_BASE,
		.end	= OMAP7XX_GPIO1_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK1,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
	.revision	= USHRT_MAX,
	.direction	= OMAP7XX_GPIO_DIR_CONTROL,
	.datain		= OMAP7XX_GPIO_DATA_INPUT,
	.dataout	= OMAP7XX_GPIO_DATA_OUTPUT,
	.irqstatus	= OMAP7XX_GPIO_INT_STATUS,
	.irqenable	= OMAP7XX_GPIO_INT_MASK,
	.irqenable_inv	= true,
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
	.virtual_irq_start	= IH_GPIO_BASE,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio1 = {
	.name           = "omap_gpio",
	.id             = 1,
	.dev            = {
		.platform_data = &omap7xx_gpio1_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
	.resource = omap7xx_gpio1_resources,
};

/* gpio2 */
static struct __initdata resource omap7xx_gpio2_resources[] = {
	{
		.start	= OMAP7XX_GPIO2_BASE,
		.end	= OMAP7XX_GPIO2_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK2,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
	.virtual_irq_start	= IH_GPIO_BASE + 32,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio2 = {
	.name           = "omap_gpio",
	.id             = 2,
	.dev            = {
		.platform_data = &omap7xx_gpio2_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
	.resource = omap7xx_gpio2_resources,
};

/* gpio3 */
static struct __initdata resource omap7xx_gpio3_resources[] = {
	{
		.start	= OMAP7XX_GPIO3_BASE,
		.end	= OMAP7XX_GPIO3_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK3,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
	.virtual_irq_start	= IH_GPIO_BASE + 64,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio3 = {
	.name           = "omap_gpio",
	.id             = 3,
	.dev            = {
		.platform_data = &omap7xx_gpio3_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
	.resource = omap7xx_gpio3_resources,
};

/* gpio4 */
static struct __initdata resource omap7xx_gpio4_resources[] = {
	{
		.start	= OMAP7XX_GPIO4_BASE,
		.end	= OMAP7XX_GPIO4_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK4,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
	.virtual_irq_start	= IH_GPIO_BASE + 96,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio4 = {
	.name           = "omap_gpio",
	.id             = 4,
	.dev            = {
		.platform_data = &omap7xx_gpio4_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
	.resource = omap7xx_gpio4_resources,
};

/* gpio5 */
static struct __initdata resource omap7xx_gpio5_resources[] = {
	{
		.start	= OMAP7XX_GPIO5_BASE,
		.end	= OMAP7XX_GPIO5_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK5,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
	.virtual_irq_start	= IH_GPIO_BASE + 128,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio5 = {
	.name           = "omap_gpio",
	.id             = 5,
	.dev            = {
		.platform_data = &omap7xx_gpio5_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
	.resource = omap7xx_gpio5_resources,
};

/* gpio6 */
static struct __initdata resource omap7xx_gpio6_resources[] = {
	{
		.start	= OMAP7XX_GPIO6_BASE,
		.end	= OMAP7XX_GPIO6_BASE + SZ_2K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= INT_7XX_GPIO_BANK6,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
	.virtual_irq_start	= IH_GPIO_BASE + 160,
	.bank_type		= METHOD_GPIO_7XX,
	.bank_width		= 32,
	.regs			= &omap7xx_gpio_regs,
};

static struct platform_device omap7xx_gpio6 = {
	.name           = "omap_gpio",
	.id             = 6,
	.dev            = {
		.platform_data = &omap7xx_gpio6_config,
	},
	.num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
	.resource = omap7xx_gpio6_resources,
};

static struct __initdata platform_device * omap7xx_gpio_dev[] = {
	&omap7xx_mpu_gpio,
	&omap7xx_gpio1,
	&omap7xx_gpio2,
	&omap7xx_gpio3,
	&omap7xx_gpio4,
	&omap7xx_gpio5,
	&omap7xx_gpio6,
};

/*
 * omap7xx_gpio_init needs to be done before
 * machine_init functions access gpio APIs.
 * Hence omap7xx_gpio_init is a postcore_initcall.
 */
static int __init omap7xx_gpio_init(void)
{
	int i;

	if (!cpu_is_omap7xx())
		return -EINVAL;

	for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
		platform_device_register(omap7xx_gpio_dev[i]);

	gpio_bank_count = ARRAY_SIZE(omap7xx_gpio_dev);

	return 0;
}
postcore_initcall(omap7xx_gpio_init);