Merge branch 'depends/rmk/memory_h' into next/fixes
[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 #include <linux/gpio.h>
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 <plat/mux.h>
30 #include <plat/usb.h>
31 #include <plat/board.h>
32 #include <plat/keypad.h>
33 #include <plat/common.h>
34 #include <plat/hwa742.h>
35 #include <plat/lcd_mipid.h>
36 #include <plat/mmc.h>
37 #include <plat/clock.h>
38
39 #define ADS7846_PENDOWN_GPIO    15
40
41 static void __init omap_nokia770_init_irq(void)
42 {
43         /* On Nokia 770, the SleepX signal is masked with an
44          * MPUIO line by default.  It has to be unmasked for it
45          * to become functional */
46
47         /* SleepX mask direction */
48         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
49         /* Unmask SleepX signal */
50         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
51
52         omap1_init_common_hw();
53         omap1_init_irq();
54 }
55
56 static const unsigned int nokia770_keymap[] = {
57         KEY(1, 0, GROUP_0 | KEY_UP),
58         KEY(2, 0, GROUP_1 | KEY_F5),
59         KEY(0, 1, GROUP_0 | KEY_LEFT),
60         KEY(1, 1, GROUP_0 | KEY_ENTER),
61         KEY(2, 1, GROUP_0 | KEY_RIGHT),
62         KEY(0, 2, GROUP_1 | KEY_ESC),
63         KEY(1, 2, GROUP_0 | KEY_DOWN),
64         KEY(2, 2, GROUP_1 | KEY_F4),
65         KEY(0, 3, GROUP_2 | KEY_F7),
66         KEY(1, 3, GROUP_2 | KEY_F8),
67         KEY(2, 3, GROUP_2 | KEY_F6),
68 };
69
70 static struct resource nokia770_kp_resources[] = {
71         [0] = {
72                 .start  = INT_KEYBOARD,
73                 .end    = INT_KEYBOARD,
74                 .flags  = IORESOURCE_IRQ,
75         },
76 };
77
78 static const struct matrix_keymap_data nokia770_keymap_data = {
79         .keymap         = nokia770_keymap,
80         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
81 };
82
83 static struct omap_kp_platform_data nokia770_kp_data = {
84         .rows           = 8,
85         .cols           = 8,
86         .keymap_data    = &nokia770_keymap_data,
87         .delay          = 4,
88 };
89
90 static struct platform_device nokia770_kp_device = {
91         .name           = "omap-keypad",
92         .id             = -1,
93         .dev            = {
94                 .platform_data = &nokia770_kp_data,
95         },
96         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
97         .resource       = nokia770_kp_resources,
98 };
99
100 static struct platform_device *nokia770_devices[] __initdata = {
101         &nokia770_kp_device,
102 };
103
104 static void mipid_shutdown(struct mipid_platform_data *pdata)
105 {
106         if (pdata->nreset_gpio != -1) {
107                 printk(KERN_INFO "shutdown LCD\n");
108                 gpio_set_value(pdata->nreset_gpio, 0);
109                 msleep(120);
110         }
111 }
112
113 static struct mipid_platform_data nokia770_mipid_platform_data = {
114         .shutdown = mipid_shutdown,
115 };
116
117 static void __init mipid_dev_init(void)
118 {
119         const struct omap_lcd_config *conf;
120
121         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
122         if (conf != NULL) {
123                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
124                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
125         }
126 }
127
128 static void __init ads7846_dev_init(void)
129 {
130         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
131                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
132 }
133
134 static int ads7846_get_pendown_state(void)
135 {
136         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
137 }
138
139 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
140         .x_max          = 0x0fff,
141         .y_max          = 0x0fff,
142         .x_plate_ohms   = 180,
143         .pressure_max   = 255,
144         .debounce_max   = 10,
145         .debounce_tol   = 3,
146         .debounce_rep   = 1,
147         .get_pendown_state      = ads7846_get_pendown_state,
148 };
149
150 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
151         [0] = {
152                 .modalias       = "lcd_mipid",
153                 .bus_num        = 2,
154                 .chip_select    = 3,
155                 .max_speed_hz   = 12000000,
156                 .platform_data  = &nokia770_mipid_platform_data,
157         },
158         [1] = {
159                 .modalias       = "ads7846",
160                 .bus_num        = 2,
161                 .chip_select    = 0,
162                 .max_speed_hz   = 2500000,
163                 .irq            = OMAP_GPIO_IRQ(15),
164                 .platform_data  = &nokia770_ads7846_platform_data,
165         },
166 };
167
168 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
169         .te_connected           = 1,
170 };
171
172 static void __init hwa742_dev_init(void)
173 {
174         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
175         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
176 }
177
178 /* assume no Mini-AB port */
179
180 static struct omap_usb_config nokia770_usb_config __initdata = {
181         .otg            = 1,
182         .register_host  = 1,
183         .register_dev   = 1,
184         .hmc_mode       = 16,
185         .pins[0]        = 6,
186 };
187
188 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
189
190 #define NOKIA770_GPIO_MMC_POWER         41
191 #define NOKIA770_GPIO_MMC_SWITCH        23
192
193 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
194                                 int vdd)
195 {
196         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
197         return 0;
198 }
199
200 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
201 {
202         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
203 }
204
205 static struct omap_mmc_platform_data nokia770_mmc2_data = {
206         .nr_slots                       = 1,
207         .dma_mask                       = 0xffffffff,
208         .max_freq                       = 12000000,
209         .slots[0]       = {
210                 .set_power              = nokia770_mmc_set_power,
211                 .get_cover_state        = nokia770_mmc_get_cover_state,
212                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
213                 .name                   = "mmcblk",
214         },
215 };
216
217 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
218
219 static void __init nokia770_mmc_init(void)
220 {
221         int ret;
222
223         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
224         if (ret < 0)
225                 return;
226         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
227
228         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
229         if (ret < 0) {
230                 gpio_free(NOKIA770_GPIO_MMC_POWER);
231                 return;
232         }
233         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
234
235         /* Only the second MMC controller is used */
236         nokia770_mmc_data[1] = &nokia770_mmc2_data;
237         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
238 }
239
240 #else
241 static inline void nokia770_mmc_init(void)
242 {
243 }
244 #endif
245
246 static void __init omap_nokia770_init(void)
247 {
248         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
249         spi_register_board_info(nokia770_spi_board_info,
250                                 ARRAY_SIZE(nokia770_spi_board_info));
251         omap_serial_init();
252         omap_register_i2c_bus(1, 100, NULL, 0);
253         hwa742_dev_init();
254         ads7846_dev_init();
255         mipid_dev_init();
256         omap1_usb_init(&nokia770_usb_config);
257         nokia770_mmc_init();
258 }
259
260 static void __init omap_nokia770_map_io(void)
261 {
262         omap1_map_common_io();
263 }
264
265 MACHINE_START(NOKIA770, "Nokia 770")
266         .atag_offset    = 0x100,
267         .map_io         = omap_nokia770_map_io,
268         .reserve        = omap_reserve,
269         .init_irq       = omap_nokia770_init_irq,
270         .init_machine   = omap_nokia770_init,
271         .timer          = &omap1_timer,
272 MACHINE_END