release/src-rt-6.x.4708/linux/linux-2.6.36/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 int nokia770_keymap[] = {
  58         KEY(0, 1, GROUP_0 | KEY_UP),
  59         KEY(0, 2, GROUP_1 | KEY_F5),
  60         KEY(1, 0, GROUP_0 | KEY_LEFT),
  61         KEY(1, 1, GROUP_0 | KEY_ENTER),
  62         KEY(1, 2, GROUP_0 | KEY_RIGHT),
  63         KEY(2, 0, GROUP_1 | KEY_ESC),
  64         KEY(2, 1, GROUP_0 | KEY_DOWN),
  65         KEY(2, 2, GROUP_1 | KEY_F4),
  66         KEY(3, 0, GROUP_2 | KEY_F7),
  67         KEY(3, 1, GROUP_2 | KEY_F8),
  68         KEY(3, 2, GROUP_2 | KEY_F6),
  69         0
  70 };
  71
  72 static struct resource nokia770_kp_resources[] = {
  73         [0] = {
  74                 .start  = INT_KEYBOARD,
  75                 .end    = INT_KEYBOARD,
  76                 .flags  = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 static struct omap_kp_platform_data nokia770_kp_data = {
  81         .rows           = 8,
  82         .cols           = 8,
  83         .keymap         = nokia770_keymap,
  84         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
  85         .delay          = 4,
  86 };
  87
  88 static struct platform_device nokia770_kp_device = {
  89         .name           = "omap-keypad",
  90         .id             = -1,
  91         .dev            = {
  92                 .platform_data = &nokia770_kp_data,
  93         },
  94         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  95         .resource       = nokia770_kp_resources,
  96 };
  97
  98 static struct platform_device *nokia770_devices[] __initdata = {
  99         &nokia770_kp_device,
 100 };
 101
 102 static void mipid_shutdown(struct mipid_platform_data *pdata)
 103 {
 104         if (pdata->nreset_gpio != -1) {
 105                 printk(KERN_INFO "shutdown LCD\n");
 106                 gpio_set_value(pdata->nreset_gpio, 0);
 107                 msleep(120);
 108         }
 109 }
 110
 111 static struct mipid_platform_data nokia770_mipid_platform_data = {
 112         .shutdown = mipid_shutdown,
 113 };
 114
 115 static void mipid_dev_init(void)
 116 {
 117         const struct omap_lcd_config *conf;
 118
 119         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 120         if (conf != NULL) {
 121                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 122                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 123         }
 124 }
 125
 126 static void ads7846_dev_init(void)
 127 {
 128         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
 129                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 130 }
 131
 132 static int ads7846_get_pendown_state(void)
 133 {
 134         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
 135 }
 136
 137 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 138         .x_max          = 0x0fff,
 139         .y_max          = 0x0fff,
 140         .x_plate_ohms   = 180,
 141         .pressure_max   = 255,
 142         .debounce_max   = 10,
 143         .debounce_tol   = 3,
 144         .debounce_rep   = 1,
 145         .get_pendown_state      = ads7846_get_pendown_state,
 146 };
 147
 148 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 149         [0] = {
 150                 .modalias       = "lcd_mipid",
 151                 .bus_num        = 2,
 152                 .chip_select    = 3,
 153                 .max_speed_hz   = 12000000,
 154                 .platform_data  = &nokia770_mipid_platform_data,
 155         },
 156         [1] = {
 157                 .modalias       = "ads7846",
 158                 .bus_num        = 2,
 159                 .chip_select    = 0,
 160                 .max_speed_hz   = 2500000,
 161                 .irq            = OMAP_GPIO_IRQ(15),
 162                 .platform_data  = &nokia770_ads7846_platform_data,
 163         },
 164 };
 165
 166 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 167         .te_connected           = 1,
 168 };
 169
 170 static void hwa742_dev_init(void)
 171 {
 172         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 173         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 174 }
 175
 176 /* assume no Mini-AB port */
 177
 178 static struct omap_usb_config nokia770_usb_config __initdata = {
 179         .otg            = 1,
 180         .register_host  = 1,
 181         .register_dev   = 1,
 182         .hmc_mode       = 16,
 183         .pins[0]        = 6,
 184 };
 185
 186 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 187
 188 #define NOKIA770_GPIO_MMC_POWER         41
 189 #define NOKIA770_GPIO_MMC_SWITCH        23
 190
 191 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 192                                 int vdd)
 193 {
 194         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 195         return 0;
 196 }
 197
 198 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 199 {
 200         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 201 }
 202
 203 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 204         .nr_slots                       = 1,
 205         .dma_mask                       = 0xffffffff,
 206         .max_freq                       = 12000000,
 207         .slots[0]       = {
 208                 .set_power              = nokia770_mmc_set_power,
 209                 .get_cover_state        = nokia770_mmc_get_cover_state,
 210                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 211                 .name                   = "mmcblk",
 212         },
 213 };
 214
 215 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 216
 217 static void __init nokia770_mmc_init(void)
 218 {
 219         int ret;
 220
 221         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 222         if (ret < 0)
 223                 return;
 224         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 225
 226         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 227         if (ret < 0) {
 228                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 229                 return;
 230         }
 231         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 232
 233         /* Only the second MMC controller is used */
 234         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 235         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 236 }
 237
 238 #else
 239 static inline void nokia770_mmc_init(void)
 240 {
 241 }
 242 #endif
 243
 244 static void __init omap_nokia770_init(void)
 245 {
 246         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 247         spi_register_board_info(nokia770_spi_board_info,
 248                                 ARRAY_SIZE(nokia770_spi_board_info));
 249         omap_gpio_init();
 250         omap_serial_init();
 251         omap_register_i2c_bus(1, 100, NULL, 0);
 252         hwa742_dev_init();
 253         ads7846_dev_init();
 254         mipid_dev_init();
 255         omap1_usb_init(&nokia770_usb_config);
 256         nokia770_mmc_init();
 257 }
 258
 259 static void __init omap_nokia770_map_io(void)
 260 {
 261         omap1_map_common_io();
 262 }
 263
 264 MACHINE_START(NOKIA770, "Nokia 770")
 265         .phys_io        = 0xfff00000,
 266         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 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