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 <linux/platform_data/keypad-omap.h>
  25 #include <linux/platform_data/lcd-mipid.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30
  31 #include <mach/mux.h>
  32
  33 #include <mach/hardware.h>
  34 #include <mach/usb.h>
  35
  36 #include "common.h"
  37 #include "clock.h"
  38 #include "mmc.h"
  39
  40 #define ADS7846_PENDOWN_GPIO    15
  41
  42 static const unsigned int nokia770_keymap[] = {
  43         KEY(1, 0, GROUP_0 | KEY_UP),
  44         KEY(2, 0, GROUP_1 | KEY_F5),
  45         KEY(0, 1, GROUP_0 | KEY_LEFT),
  46         KEY(1, 1, GROUP_0 | KEY_ENTER),
  47         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  48         KEY(0, 2, GROUP_1 | KEY_ESC),
  49         KEY(1, 2, GROUP_0 | KEY_DOWN),
  50         KEY(2, 2, GROUP_1 | KEY_F4),
  51         KEY(0, 3, GROUP_2 | KEY_F7),
  52         KEY(1, 3, GROUP_2 | KEY_F8),
  53         KEY(2, 3, GROUP_2 | KEY_F6),
  54 };
  55
  56 static struct resource nokia770_kp_resources[] = {
  57         [0] = {
  58                 .start  = INT_KEYBOARD,
  59                 .end    = INT_KEYBOARD,
  60                 .flags  = IORESOURCE_IRQ,
  61         },
  62 };
  63
  64 static const struct matrix_keymap_data nokia770_keymap_data = {
  65         .keymap         = nokia770_keymap,
  66         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  67 };
  68
  69 static struct omap_kp_platform_data nokia770_kp_data = {
  70         .rows           = 8,
  71         .cols           = 8,
  72         .keymap_data    = &nokia770_keymap_data,
  73         .delay          = 4,
  74 };
  75
  76 static struct platform_device nokia770_kp_device = {
  77         .name           = "omap-keypad",
  78         .id             = -1,
  79         .dev            = {
  80                 .platform_data = &nokia770_kp_data,
  81         },
  82         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  83         .resource       = nokia770_kp_resources,
  84 };
  85
  86 static struct platform_device *nokia770_devices[] __initdata = {
  87         &nokia770_kp_device,
  88 };
  89
  90 static void mipid_shutdown(struct mipid_platform_data *pdata)
  91 {
  92         if (pdata->nreset_gpio != -1) {
  93                 printk(KERN_INFO "shutdown LCD\n");
  94                 gpio_set_value(pdata->nreset_gpio, 0);
  95                 msleep(120);
  96         }
  97 }
  98
  99 static struct mipid_platform_data nokia770_mipid_platform_data = {
 100         .shutdown = mipid_shutdown,
 101 };
 102
 103 static struct omap_lcd_config nokia770_lcd_config __initdata = {
 104         .ctrl_name      = "hwa742",
 105 };
 106
 107 static void __init mipid_dev_init(void)
 108 {
 109         nokia770_mipid_platform_data.nreset_gpio = 13;
 110         nokia770_mipid_platform_data.data_lines = 16;
 111
 112         omapfb_set_lcd_config(&nokia770_lcd_config);
 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                 .platform_data  = &nokia770_ads7846_platform_data,
 151         },
 152 };
 153
 154 static void __init hwa742_dev_init(void)
 155 {
 156         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 157 }
 158
 159 /* assume no Mini-AB port */
 160
 161 static struct omap_usb_config nokia770_usb_config __initdata = {
 162         .otg            = 1,
 163         .register_host  = 1,
 164         .register_dev   = 1,
 165         .hmc_mode       = 16,
 166         .pins[0]        = 6,
 167 };
 168
 169 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 170
 171 #define NOKIA770_GPIO_MMC_POWER         41
 172 #define NOKIA770_GPIO_MMC_SWITCH        23
 173
 174 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 175                                 int vdd)
 176 {
 177         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 178         return 0;
 179 }
 180
 181 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 182 {
 183         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 184 }
 185
 186 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 187         .nr_slots                       = 1,
 188         .max_freq                       = 12000000,
 189         .slots[0]       = {
 190                 .set_power              = nokia770_mmc_set_power,
 191                 .get_cover_state        = nokia770_mmc_get_cover_state,
 192                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 193                 .name                   = "mmcblk",
 194         },
 195 };
 196
 197 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 198
 199 static void __init nokia770_mmc_init(void)
 200 {
 201         int ret;
 202
 203         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 204         if (ret < 0)
 205                 return;
 206         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 207
 208         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 209         if (ret < 0) {
 210                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 211                 return;
 212         }
 213         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 214
 215         /* Only the second MMC controller is used */
 216         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 217         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 218 }
 219
 220 #else
 221 static inline void nokia770_mmc_init(void)
 222 {
 223 }
 224 #endif
 225
 226 static void __init omap_nokia770_init(void)
 227 {
 228         /* On Nokia 770, the SleepX signal is masked with an
 229          * MPUIO line by default.  It has to be unmasked for it
 230          * to become functional */
 231
 232         /* SleepX mask direction */
 233         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
 234         /* Unmask SleepX signal */
 235         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
 236
 237         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 238         nokia770_spi_board_info[1].irq = gpio_to_irq(15);
 239         spi_register_board_info(nokia770_spi_board_info,
 240                                 ARRAY_SIZE(nokia770_spi_board_info));
 241         omap_serial_init();
 242         omap_register_i2c_bus(1, 100, NULL, 0);
 243         hwa742_dev_init();
 244         ads7846_dev_init();
 245         mipid_dev_init();
 246         omap1_usb_init(&nokia770_usb_config);
 247         nokia770_mmc_init();
 248 }
 249
 250 MACHINE_START(NOKIA770, "Nokia 770")
 251         .atag_offset    = 0x100,
 252         .map_io         = omap16xx_map_io,
 253         .init_early     = omap1_init_early,
 254         .init_irq       = omap1_init_irq,
 255         .init_machine   = omap_nokia770_init,
 256         .init_late      = omap1_init_late,
 257         .timer          = &omap1_timer,
 258         .restart        = omap1_restart,
 259 MACHINE_END