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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 };
47
48 static struct __initdata platform_device omap7xx_mpu_gpio = {
49         .name           = "omap_gpio",
50         .id             = 0,
51         .dev            = {
52                 .platform_data = &omap7xx_mpu_gpio_config,
53         },
54         .num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
55         .resource = omap7xx_mpu_gpio_resources,
56 };
57
58 /* gpio1 */
59 static struct __initdata resource omap7xx_gpio1_resources[] = {
60         {
61                 .start  = OMAP7XX_GPIO1_BASE,
62                 .end    = OMAP7XX_GPIO1_BASE + SZ_2K - 1,
63                 .flags  = IORESOURCE_MEM,
64         },
65         {
66                 .start  = INT_7XX_GPIO_BANK1,
67                 .flags  = IORESOURCE_IRQ,
68         },
69 };
70
71 static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
72         .virtual_irq_start      = IH_GPIO_BASE,
73         .bank_type              = METHOD_GPIO_7XX,
74         .bank_width             = 32,
75 };
76
77 static struct __initdata platform_device omap7xx_gpio1 = {
78         .name           = "omap_gpio",
79         .id             = 1,
80         .dev            = {
81                 .platform_data = &omap7xx_gpio1_config,
82         },
83         .num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
84         .resource = omap7xx_gpio1_resources,
85 };
86
87 /* gpio2 */
88 static struct __initdata resource omap7xx_gpio2_resources[] = {
89         {
90                 .start  = OMAP7XX_GPIO2_BASE,
91                 .end    = OMAP7XX_GPIO2_BASE + SZ_2K - 1,
92                 .flags  = IORESOURCE_MEM,
93         },
94         {
95                 .start  = INT_7XX_GPIO_BANK2,
96                 .flags  = IORESOURCE_IRQ,
97         },
98 };
99
100 static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
101         .virtual_irq_start      = IH_GPIO_BASE + 32,
102         .bank_type              = METHOD_GPIO_7XX,
103         .bank_width             = 32,
104 };
105
106 static struct __initdata platform_device omap7xx_gpio2 = {
107         .name           = "omap_gpio",
108         .id             = 2,
109         .dev            = {
110                 .platform_data = &omap7xx_gpio2_config,
111         },
112         .num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
113         .resource = omap7xx_gpio2_resources,
114 };
115
116 /* gpio3 */
117 static struct __initdata resource omap7xx_gpio3_resources[] = {
118         {
119                 .start  = OMAP7XX_GPIO3_BASE,
120                 .end    = OMAP7XX_GPIO3_BASE + SZ_2K - 1,
121                 .flags  = IORESOURCE_MEM,
122         },
123         {
124                 .start  = INT_7XX_GPIO_BANK3,
125                 .flags  = IORESOURCE_IRQ,
126         },
127 };
128
129 static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
130         .virtual_irq_start      = IH_GPIO_BASE + 64,
131         .bank_type              = METHOD_GPIO_7XX,
132         .bank_width             = 32,
133 };
134
135 static struct __initdata platform_device omap7xx_gpio3 = {
136         .name           = "omap_gpio",
137         .id             = 3,
138         .dev            = {
139                 .platform_data = &omap7xx_gpio3_config,
140         },
141         .num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
142         .resource = omap7xx_gpio3_resources,
143 };
144
145 /* gpio4 */
146 static struct __initdata resource omap7xx_gpio4_resources[] = {
147         {
148                 .start  = OMAP7XX_GPIO4_BASE,
149                 .end    = OMAP7XX_GPIO4_BASE + SZ_2K - 1,
150                 .flags  = IORESOURCE_MEM,
151         },
152         {
153                 .start  = INT_7XX_GPIO_BANK4,
154                 .flags  = IORESOURCE_IRQ,
155         },
156 };
157
158 static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
159         .virtual_irq_start      = IH_GPIO_BASE + 96,
160         .bank_type              = METHOD_GPIO_7XX,
161         .bank_width             = 32,
162 };
163
164 static struct __initdata platform_device omap7xx_gpio4 = {
165         .name           = "omap_gpio",
166         .id             = 4,
167         .dev            = {
168                 .platform_data = &omap7xx_gpio4_config,
169         },
170         .num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
171         .resource = omap7xx_gpio4_resources,
172 };
173
174 /* gpio5 */
175 static struct __initdata resource omap7xx_gpio5_resources[] = {
176         {
177                 .start  = OMAP7XX_GPIO5_BASE,
178                 .end    = OMAP7XX_GPIO5_BASE + SZ_2K - 1,
179                 .flags  = IORESOURCE_MEM,
180         },
181         {
182                 .start  = INT_7XX_GPIO_BANK5,
183                 .flags  = IORESOURCE_IRQ,
184         },
185 };
186
187 static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
188         .virtual_irq_start      = IH_GPIO_BASE + 128,
189         .bank_type              = METHOD_GPIO_7XX,
190         .bank_width             = 32,
191 };
192
193 static struct __initdata platform_device omap7xx_gpio5 = {
194         .name           = "omap_gpio",
195         .id             = 5,
196         .dev            = {
197                 .platform_data = &omap7xx_gpio5_config,
198         },
199         .num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
200         .resource = omap7xx_gpio5_resources,
201 };
202
203 /* gpio6 */
204 static struct __initdata resource omap7xx_gpio6_resources[] = {
205         {
206                 .start  = OMAP7XX_GPIO6_BASE,
207                 .end    = OMAP7XX_GPIO6_BASE + SZ_2K - 1,
208                 .flags  = IORESOURCE_MEM,
209         },
210         {
211                 .start  = INT_7XX_GPIO_BANK6,
212                 .flags  = IORESOURCE_IRQ,
213         },
214 };
215
216 static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
217         .virtual_irq_start      = IH_GPIO_BASE + 160,
218         .bank_type              = METHOD_GPIO_7XX,
219         .bank_width             = 32,
220 };
221
222 static struct __initdata platform_device omap7xx_gpio6 = {
223         .name           = "omap_gpio",
224         .id             = 6,
225         .dev            = {
226                 .platform_data = &omap7xx_gpio6_config,
227         },
228         .num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
229         .resource = omap7xx_gpio6_resources,
230 };
231
232 static struct __initdata platform_device * omap7xx_gpio_dev[] = {
233         &omap7xx_mpu_gpio,
234         &omap7xx_gpio1,
235         &omap7xx_gpio2,
236         &omap7xx_gpio3,
237         &omap7xx_gpio4,
238         &omap7xx_gpio5,
239         &omap7xx_gpio6,
240 };
241
242 /*
243  * omap7xx_gpio_init needs to be done before
244  * machine_init functions access gpio APIs.
245  * Hence omap7xx_gpio_init is a postcore_initcall.
246  */
247 static int __init omap7xx_gpio_init(void)
248 {
249         int i;
250
251         if (!cpu_is_omap7xx())
252                 return -EINVAL;
253
254         for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
255                 platform_device_register(omap7xx_gpio_dev[i]);
256
257         gpio_bank_count = ARRAY_SIZE(omap7xx_gpio_dev);
258
259         return 0;
260 }
261 postcore_initcall(omap7xx_gpio_init);