gpio/langwell_gpio: ack the correct bit for langwell gpio interrupts
[pandora-kernel.git] / arch / arm / mach-omap1 / gpio7xx.c
1 /*
2  * OMAP7xx specific gpio init
3  *
4  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
5  *
6  * Author:
7  *      Charulatha V <charu@ti.com>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License as
11  * published by the Free Software Foundation version 2.
12  *
13  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
14  * kind, whether express or implied; without even the implied warranty
15  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  */
18
19 #include <linux/gpio.h>
20
21 #define OMAP7XX_GPIO1_BASE              0xfffbc000
22 #define OMAP7XX_GPIO2_BASE              0xfffbc800
23 #define OMAP7XX_GPIO3_BASE              0xfffbd000
24 #define OMAP7XX_GPIO4_BASE              0xfffbd800
25 #define OMAP7XX_GPIO5_BASE              0xfffbe000
26 #define OMAP7XX_GPIO6_BASE              0xfffbe800
27 #define OMAP1_MPUIO_VBASE               OMAP1_MPUIO_BASE
28
29 /* mpu gpio */
30 static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
31         {
32                 .start  = OMAP1_MPUIO_VBASE,
33                 .end    = OMAP1_MPUIO_VBASE + SZ_2K - 1,
34                 .flags  = IORESOURCE_MEM,
35         },
36         {
37                 .start  = INT_7XX_MPUIO,
38                 .flags  = IORESOURCE_IRQ,
39         },
40 };
41
42 static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
43         .virtual_irq_start      = IH_MPUIO_BASE,
44         .bank_type              = METHOD_MPUIO,
45         .bank_width             = 32,
46         .bank_stride            = 2,
47 };
48
49 static struct __initdata platform_device omap7xx_mpu_gpio = {
50         .name           = "omap_gpio",
51         .id             = 0,
52         .dev            = {
53                 .platform_data = &omap7xx_mpu_gpio_config,
54         },
55         .num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
56         .resource = omap7xx_mpu_gpio_resources,
57 };
58
59 /* gpio1 */
60 static struct __initdata resource omap7xx_gpio1_resources[] = {
61         {
62                 .start  = OMAP7XX_GPIO1_BASE,
63                 .end    = OMAP7XX_GPIO1_BASE + SZ_2K - 1,
64                 .flags  = IORESOURCE_MEM,
65         },
66         {
67                 .start  = INT_7XX_GPIO_BANK1,
68                 .flags  = IORESOURCE_IRQ,
69         },
70 };
71
72 static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
73         .virtual_irq_start      = IH_GPIO_BASE,
74         .bank_type              = METHOD_GPIO_7XX,
75         .bank_width             = 32,
76 };
77
78 static struct __initdata platform_device omap7xx_gpio1 = {
79         .name           = "omap_gpio",
80         .id             = 1,
81         .dev            = {
82                 .platform_data = &omap7xx_gpio1_config,
83         },
84         .num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
85         .resource = omap7xx_gpio1_resources,
86 };
87
88 /* gpio2 */
89 static struct __initdata resource omap7xx_gpio2_resources[] = {
90         {
91                 .start  = OMAP7XX_GPIO2_BASE,
92                 .end    = OMAP7XX_GPIO2_BASE + SZ_2K - 1,
93                 .flags  = IORESOURCE_MEM,
94         },
95         {
96                 .start  = INT_7XX_GPIO_BANK2,
97                 .flags  = IORESOURCE_IRQ,
98         },
99 };
100
101 static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
102         .virtual_irq_start      = IH_GPIO_BASE + 32,
103         .bank_type              = METHOD_GPIO_7XX,
104         .bank_width             = 32,
105 };
106
107 static struct __initdata platform_device omap7xx_gpio2 = {
108         .name           = "omap_gpio",
109         .id             = 2,
110         .dev            = {
111                 .platform_data = &omap7xx_gpio2_config,
112         },
113         .num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
114         .resource = omap7xx_gpio2_resources,
115 };
116
117 /* gpio3 */
118 static struct __initdata resource omap7xx_gpio3_resources[] = {
119         {
120                 .start  = OMAP7XX_GPIO3_BASE,
121                 .end    = OMAP7XX_GPIO3_BASE + SZ_2K - 1,
122                 .flags  = IORESOURCE_MEM,
123         },
124         {
125                 .start  = INT_7XX_GPIO_BANK3,
126                 .flags  = IORESOURCE_IRQ,
127         },
128 };
129
130 static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
131         .virtual_irq_start      = IH_GPIO_BASE + 64,
132         .bank_type              = METHOD_GPIO_7XX,
133         .bank_width             = 32,
134 };
135
136 static struct __initdata platform_device omap7xx_gpio3 = {
137         .name           = "omap_gpio",
138         .id             = 3,
139         .dev            = {
140                 .platform_data = &omap7xx_gpio3_config,
141         },
142         .num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
143         .resource = omap7xx_gpio3_resources,
144 };
145
146 /* gpio4 */
147 static struct __initdata resource omap7xx_gpio4_resources[] = {
148         {
149                 .start  = OMAP7XX_GPIO4_BASE,
150                 .end    = OMAP7XX_GPIO4_BASE + SZ_2K - 1,
151                 .flags  = IORESOURCE_MEM,
152         },
153         {
154                 .start  = INT_7XX_GPIO_BANK4,
155                 .flags  = IORESOURCE_IRQ,
156         },
157 };
158
159 static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
160         .virtual_irq_start      = IH_GPIO_BASE + 96,
161         .bank_type              = METHOD_GPIO_7XX,
162         .bank_width             = 32,
163 };
164
165 static struct __initdata platform_device omap7xx_gpio4 = {
166         .name           = "omap_gpio",
167         .id             = 4,
168         .dev            = {
169                 .platform_data = &omap7xx_gpio4_config,
170         },
171         .num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
172         .resource = omap7xx_gpio4_resources,
173 };
174
175 /* gpio5 */
176 static struct __initdata resource omap7xx_gpio5_resources[] = {
177         {
178                 .start  = OMAP7XX_GPIO5_BASE,
179                 .end    = OMAP7XX_GPIO5_BASE + SZ_2K - 1,
180                 .flags  = IORESOURCE_MEM,
181         },
182         {
183                 .start  = INT_7XX_GPIO_BANK5,
184                 .flags  = IORESOURCE_IRQ,
185         },
186 };
187
188 static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
189         .virtual_irq_start      = IH_GPIO_BASE + 128,
190         .bank_type              = METHOD_GPIO_7XX,
191         .bank_width             = 32,
192 };
193
194 static struct __initdata platform_device omap7xx_gpio5 = {
195         .name           = "omap_gpio",
196         .id             = 5,
197         .dev            = {
198                 .platform_data = &omap7xx_gpio5_config,
199         },
200         .num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
201         .resource = omap7xx_gpio5_resources,
202 };
203
204 /* gpio6 */
205 static struct __initdata resource omap7xx_gpio6_resources[] = {
206         {
207                 .start  = OMAP7XX_GPIO6_BASE,
208                 .end    = OMAP7XX_GPIO6_BASE + SZ_2K - 1,
209                 .flags  = IORESOURCE_MEM,
210         },
211         {
212                 .start  = INT_7XX_GPIO_BANK6,
213                 .flags  = IORESOURCE_IRQ,
214         },
215 };
216
217 static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
218         .virtual_irq_start      = IH_GPIO_BASE + 160,
219         .bank_type              = METHOD_GPIO_7XX,
220         .bank_width             = 32,
221 };
222
223 static struct __initdata platform_device omap7xx_gpio6 = {
224         .name           = "omap_gpio",
225         .id             = 6,
226         .dev            = {
227                 .platform_data = &omap7xx_gpio6_config,
228         },
229         .num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
230         .resource = omap7xx_gpio6_resources,
231 };
232
233 static struct __initdata platform_device * omap7xx_gpio_dev[] = {
234         &omap7xx_mpu_gpio,
235         &omap7xx_gpio1,
236         &omap7xx_gpio2,
237         &omap7xx_gpio3,
238         &omap7xx_gpio4,
239         &omap7xx_gpio5,
240         &omap7xx_gpio6,
241 };
242
243 /*
244  * omap7xx_gpio_init needs to be done before
245  * machine_init functions access gpio APIs.
246  * Hence omap7xx_gpio_init is a postcore_initcall.
247  */
248 static int __init omap7xx_gpio_init(void)
249 {
250         int i;
251
252         if (!cpu_is_omap7xx())
253                 return -EINVAL;
254
255         for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
256                 platform_device_register(omap7xx_gpio_dev[i]);
257
258         gpio_bank_count = ARRAY_SIZE(omap7xx_gpio_dev);
259
260         return 0;
261 }
262 postcore_initcall(omap7xx_gpio_init);