Merge commit 'v2.6.39' into 20110526
[linux-2.6.git] / arch / arm / mach-omap1 / board-nokia770.c
1 /*
2  * linux/arch/arm/mach-omap1/board-nokia770.c
3  *
4  * Modified from board-generic.c
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/mutex.h>
14 #include <linux/platform_device.h>
15 #include <linux/input.h>
16 #include <linux/clk.h>
17 #include <linux/omapfb.h>
18
19 #include <linux/spi/spi.h>
20 #include <linux/spi/ads7846.h>
21 #include <linux/workqueue.h>
22 #include <linux/delay.h>
23
24 #include <mach/hardware.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28
29 #include <mach/gpio.h>
30 #include <plat/mux.h>
31 #include <plat/usb.h>
32 #include <plat/board.h>
33 #include <plat/keypad.h>
34 #include <plat/common.h>
35 #include <plat/hwa742.h>
36 #include <plat/lcd_mipid.h>
37 #include <plat/mmc.h>
38 #include <plat/clock.h>
39
40 #define ADS7846_PENDOWN_GPIO    15
41
42 static void __init omap_nokia770_init_irq(void)
43 {
44         /* On Nokia 770, the SleepX signal is masked with an
45          * MPUIO line by default.  It has to be unmasked for it
46          * to become functional */
47
48         /* SleepX mask direction */
49         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
50         /* Unmask SleepX signal */
51         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
52
53         omap1_init_common_hw();
54         omap_init_irq();
55 }
56
57 static const unsigned int nokia770_keymap[] = {
58         KEY(1, 0, GROUP_0 | KEY_UP),
59         KEY(2, 0, GROUP_1 | KEY_F5),
60         KEY(0, 1, GROUP_0 | KEY_LEFT),
61         KEY(1, 1, GROUP_0 | KEY_ENTER),
62         KEY(2, 1, GROUP_0 | KEY_RIGHT),
63         KEY(0, 2, GROUP_1 | KEY_ESC),
64         KEY(1, 2, GROUP_0 | KEY_DOWN),
65         KEY(2, 2, GROUP_1 | KEY_F4),
66         KEY(0, 3, GROUP_2 | KEY_F7),
67         KEY(1, 3, GROUP_2 | KEY_F8),
68         KEY(2, 3, GROUP_2 | KEY_F6),
69 };
70
71 static struct resource nokia770_kp_resources[] = {
72         [0] = {
73                 .start  = INT_KEYBOARD,
74                 .end    = INT_KEYBOARD,
75                 .flags  = IORESOURCE_IRQ,
76         },
77 };
78
79 static const struct matrix_keymap_data nokia770_keymap_data = {
80         .keymap         = nokia770_keymap,
81         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
82 };
83
84 static struct omap_kp_platform_data nokia770_kp_data = {
85         .rows           = 8,
86         .cols           = 8,
87         .keymap_data    = &nokia770_keymap_data,
88         .delay          = 4,
89 };
90
91 static struct platform_device nokia770_kp_device = {
92         .name           = "omap-keypad",
93         .id             = -1,
94         .dev            = {
95                 .platform_data = &nokia770_kp_data,
96         },
97         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
98         .resource       = nokia770_kp_resources,
99 };
100
101 static struct platform_device *nokia770_devices[] __initdata = {
102         &nokia770_kp_device,
103 };
104
105 static void mipid_shutdown(struct mipid_platform_data *pdata)
106 {
107         if (pdata->nreset_gpio != -1) {
108                 printk(KERN_INFO "shutdown LCD\n");
109                 gpio_set_value(pdata->nreset_gpio, 0);
110                 msleep(120);
111         }
112 }
113
114 static struct mipid_platform_data nokia770_mipid_platform_data = {
115         .shutdown = mipid_shutdown,
116 };
117
118 static void __init mipid_dev_init(void)
119 {
120         const struct omap_lcd_config *conf;
121
122         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
123         if (conf != NULL) {
124                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
125                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
126         }
127 }
128
129 static void __init ads7846_dev_init(void)
130 {
131         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
132                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
133 }
134
135 static int ads7846_get_pendown_state(void)
136 {
137         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
138 }
139
140 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
141         .x_max          = 0x0fff,
142         .y_max          = 0x0fff,
143         .x_plate_ohms   = 180,
144         .pressure_max   = 255,
145         .debounce_max   = 10,
146         .debounce_tol   = 3,
147         .debounce_rep   = 1,
148         .get_pendown_state      = ads7846_get_pendown_state,
149 };
150
151 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
152         [0] = {
153                 .modalias       = "lcd_mipid",
154                 .bus_num        = 2,
155                 .chip_select    = 3,
156                 .max_speed_hz   = 12000000,
157                 .platform_data  = &nokia770_mipid_platform_data,
158         },
159         [1] = {
160                 .modalias       = "ads7846",
161                 .bus_num        = 2,
162                 .chip_select    = 0,
163                 .max_speed_hz   = 2500000,
164                 .irq            = OMAP_GPIO_IRQ(15),
165                 .platform_data  = &nokia770_ads7846_platform_data,
166         },
167 };
168
169 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
170         .te_connected           = 1,
171 };
172
173 static void __init hwa742_dev_init(void)
174 {
175         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
176         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
177 }
178
179 /* assume no Mini-AB port */
180
181 static struct omap_usb_config nokia770_usb_config __initdata = {
182         .otg            = 1,
183         .register_host  = 1,
184         .register_dev   = 1,
185         .hmc_mode       = 16,
186         .pins[0]        = 6,
187 };
188
189 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
190
191 #define NOKIA770_GPIO_MMC_POWER         41
192 #define NOKIA770_GPIO_MMC_SWITCH        23
193
194 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
195                                 int vdd)
196 {
197         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
198         return 0;
199 }
200
201 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
202 {
203         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
204 }
205
206 static struct omap_mmc_platform_data nokia770_mmc2_data = {
207         .nr_slots                       = 1,
208         .dma_mask                       = 0xffffffff,
209         .max_freq                       = 12000000,
210         .slots[0]       = {
211                 .set_power              = nokia770_mmc_set_power,
212                 .get_cover_state        = nokia770_mmc_get_cover_state,
213                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
214                 .name                   = "mmcblk",
215         },
216 };
217
218 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
219
220 static void __init nokia770_mmc_init(void)
221 {
222         int ret;
223
224         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
225         if (ret < 0)
226                 return;
227         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
228
229         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
230         if (ret < 0) {
231                 gpio_free(NOKIA770_GPIO_MMC_POWER);
232                 return;
233         }
234         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
235
236         /* Only the second MMC controller is used */
237         nokia770_mmc_data[1] = &nokia770_mmc2_data;
238         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
239 }
240
241 #else
242 static inline void nokia770_mmc_init(void)
243 {
244 }
245 #endif
246
247 static void __init omap_nokia770_init(void)
248 {
249         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
250         spi_register_board_info(nokia770_spi_board_info,
251                                 ARRAY_SIZE(nokia770_spi_board_info));
252         omap_serial_init();
253         omap_register_i2c_bus(1, 100, NULL, 0);
254         hwa742_dev_init();
255         ads7846_dev_init();
256         mipid_dev_init();
257         omap1_usb_init(&nokia770_usb_config);
258         nokia770_mmc_init();
259 }
260
261 static void __init omap_nokia770_map_io(void)
262 {
263         omap1_map_common_io();
264 }
265
266 MACHINE_START(NOKIA770, "Nokia 770")
267         .boot_params    = 0x10000100,
268         .map_io         = omap_nokia770_map_io,
269         .reserve        = omap_reserve,
270         .init_irq       = omap_nokia770_init_irq,
271         .init_machine   = omap_nokia770_init,
272         .timer          = &omap_timer,
273 MACHINE_END