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 <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27
  28 #include <plat/mux.h>
  29 #include <plat/usb.h>
  30 #include <plat/board.h>
  31 #include <plat/keypad.h>
  32 #include <plat/hwa742.h>
  33 #include <plat/lcd_mipid.h>
  34 #include <plat/mmc.h>
  35 #include <plat/clock.h>
  36
  37 #include <mach/hardware.h>
  38
  39 #include "common.h"
  40
  41 #define ADS7846_PENDOWN_GPIO    15
  42
  43 static const unsigned int nokia770_keymap[] = {
  44         KEY(1, 0, GROUP_0 | KEY_UP),
  45         KEY(2, 0, GROUP_1 | KEY_F5),
  46         KEY(0, 1, GROUP_0 | KEY_LEFT),
  47         KEY(1, 1, GROUP_0 | KEY_ENTER),
  48         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  49         KEY(0, 2, GROUP_1 | KEY_ESC),
  50         KEY(1, 2, GROUP_0 | KEY_DOWN),
  51         KEY(2, 2, GROUP_1 | KEY_F4),
  52         KEY(0, 3, GROUP_2 | KEY_F7),
  53         KEY(1, 3, GROUP_2 | KEY_F8),
  54         KEY(2, 3, GROUP_2 | KEY_F6),
  55 };
  56
  57 static struct resource nokia770_kp_resources[] = {
  58         [0] = {
  59                 .start  = INT_KEYBOARD,
  60                 .end    = INT_KEYBOARD,
  61                 .flags  = IORESOURCE_IRQ,
  62         },
  63 };
  64
  65 static const struct matrix_keymap_data nokia770_keymap_data = {
  66         .keymap         = nokia770_keymap,
  67         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  68 };
  69
  70 static struct omap_kp_platform_data nokia770_kp_data = {
  71         .rows           = 8,
  72         .cols           = 8,
  73         .keymap_data    = &nokia770_keymap_data,
  74         .delay          = 4,
  75 };
  76
  77 static struct platform_device nokia770_kp_device = {
  78         .name           = "omap-keypad",
  79         .id             = -1,
  80         .dev            = {
  81                 .platform_data = &nokia770_kp_data,
  82         },
  83         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  84         .resource       = nokia770_kp_resources,
  85 };
  86
  87 static struct platform_device *nokia770_devices[] __initdata = {
  88         &nokia770_kp_device,
  89 };
  90
  91 static void mipid_shutdown(struct mipid_platform_data *pdata)
  92 {
  93         if (pdata->nreset_gpio != -1) {
  94                 printk(KERN_INFO "shutdown LCD\n");
  95                 gpio_set_value(pdata->nreset_gpio, 0);
  96                 msleep(120);
  97         }
  98 }
  99
 100 static struct mipid_platform_data nokia770_mipid_platform_data = {
 101         .shutdown = mipid_shutdown,
 102 };
 103
 104 static void __init mipid_dev_init(void)
 105 {
 106         const struct omap_lcd_config *conf;
 107
 108         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 109         if (conf != NULL) {
 110                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 111                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 112         }
 113 }
 114
 115 static void __init ads7846_dev_init(void)
 116 {
 117         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
 118                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 119 }
 120
 121 static int ads7846_get_pendown_state(void)
 122 {
 123         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
 124 }
 125
 126 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 127         .x_max          = 0x0fff,
 128         .y_max          = 0x0fff,
 129         .x_plate_ohms   = 180,
 130         .pressure_max   = 255,
 131         .debounce_max   = 10,
 132         .debounce_tol   = 3,
 133         .debounce_rep   = 1,
 134         .get_pendown_state      = ads7846_get_pendown_state,
 135 };
 136
 137 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 138         [0] = {
 139                 .modalias       = "lcd_mipid",
 140                 .bus_num        = 2,
 141                 .chip_select    = 3,
 142                 .max_speed_hz   = 12000000,
 143                 .platform_data  = &nokia770_mipid_platform_data,
 144         },
 145         [1] = {
 146                 .modalias       = "ads7846",
 147                 .bus_num        = 2,
 148                 .chip_select    = 0,
 149                 .max_speed_hz   = 2500000,
 150                 .irq            = OMAP_GPIO_IRQ(15),
 151                 .platform_data  = &nokia770_ads7846_platform_data,
 152         },
 153 };
 154
 155 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 156         .te_connected           = 1,
 157 };
 158
 159 static void __init hwa742_dev_init(void)
 160 {
 161         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 162         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 163 }
 164
 165 /* assume no Mini-AB port */
 166
 167 static struct omap_usb_config nokia770_usb_config __initdata = {
 168         .otg            = 1,
 169         .register_host  = 1,
 170         .register_dev   = 1,
 171         .hmc_mode       = 16,
 172         .pins[0]        = 6,
 173 };
 174
 175 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 176
 177 #define NOKIA770_GPIO_MMC_POWER         41
 178 #define NOKIA770_GPIO_MMC_SWITCH        23
 179
 180 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 181                                 int vdd)
 182 {
 183         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 184         return 0;
 185 }
 186
 187 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 188 {
 189         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 190 }
 191
 192 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 193         .nr_slots                       = 1,
 194         .dma_mask                       = 0xffffffff,
 195         .max_freq                       = 12000000,
 196         .slots[0]       = {
 197                 .set_power              = nokia770_mmc_set_power,
 198                 .get_cover_state        = nokia770_mmc_get_cover_state,
 199                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 200                 .name                   = "mmcblk",
 201         },
 202 };
 203
 204 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 205
 206 static void __init nokia770_mmc_init(void)
 207 {
 208         int ret;
 209
 210         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 211         if (ret < 0)
 212                 return;
 213         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 214
 215         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 216         if (ret < 0) {
 217                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 218                 return;
 219         }
 220         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 221
 222         /* Only the second MMC controller is used */
 223         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 224         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 225 }
 226
 227 #else
 228 static inline void nokia770_mmc_init(void)
 229 {
 230 }
 231 #endif
 232
 233 static void __init omap_nokia770_init(void)
 234 {
 235         /* On Nokia 770, the SleepX signal is masked with an
 236          * MPUIO line by default.  It has to be unmasked for it
 237          * to become functional */
 238
 239         /* SleepX mask direction */
 240         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
 241         /* Unmask SleepX signal */
 242         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
 243
 244         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 245         spi_register_board_info(nokia770_spi_board_info,
 246                                 ARRAY_SIZE(nokia770_spi_board_info));
 247         omap_serial_init();
 248         omap_register_i2c_bus(1, 100, NULL, 0);
 249         hwa742_dev_init();
 250         ads7846_dev_init();
 251         mipid_dev_init();
 252         omap1_usb_init(&nokia770_usb_config);
 253         nokia770_mmc_init();
 254 }
 255
 256 MACHINE_START(NOKIA770, "Nokia 770")
 257         .atag_offset    = 0x100,
 258         .map_io         = omap16xx_map_io,
 259         .init_early     = omap1_init_early,
 260         .reserve        = omap_reserve,
 261         .init_irq       = omap1_init_irq,
 262         .init_machine   = omap_nokia770_init,
 263         .timer          = &omap1_timer,
 264         .restart        = omap1_restart,
 265 MACHINE_END