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