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/lcd_mipid.h>
  35 #include <plat/mmc.h>
  36 #include <plat/clock.h>
  37
  38 #define ADS7846_PENDOWN_GPIO    15
  39
  40 static const unsigned int nokia770_keymap[] = {
  41         KEY(1, 0, GROUP_0 | KEY_UP),
  42         KEY(2, 0, GROUP_1 | KEY_F5),
  43         KEY(0, 1, GROUP_0 | KEY_LEFT),
  44         KEY(1, 1, GROUP_0 | KEY_ENTER),
  45         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  46         KEY(0, 2, GROUP_1 | KEY_ESC),
  47         KEY(1, 2, GROUP_0 | KEY_DOWN),
  48         KEY(2, 2, GROUP_1 | KEY_F4),
  49         KEY(0, 3, GROUP_2 | KEY_F7),
  50         KEY(1, 3, GROUP_2 | KEY_F8),
  51         KEY(2, 3, GROUP_2 | KEY_F6),
  52 };
  53
  54 static struct resource nokia770_kp_resources[] = {
  55         [0] = {
  56                 .start  = INT_KEYBOARD,
  57                 .end    = INT_KEYBOARD,
  58                 .flags  = IORESOURCE_IRQ,
  59         },
  60 };
  61
  62 static const struct matrix_keymap_data nokia770_keymap_data = {
  63         .keymap         = nokia770_keymap,
  64         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  65 };
  66
  67 static struct omap_kp_platform_data nokia770_kp_data = {
  68         .rows           = 8,
  69         .cols           = 8,
  70         .keymap_data    = &nokia770_keymap_data,
  71         .delay          = 4,
  72 };
  73
  74 static struct platform_device nokia770_kp_device = {
  75         .name           = "omap-keypad",
  76         .id             = -1,
  77         .dev            = {
  78                 .platform_data = &nokia770_kp_data,
  79         },
  80         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  81         .resource       = nokia770_kp_resources,
  82 };
  83
  84 static struct platform_device *nokia770_devices[] __initdata = {
  85         &nokia770_kp_device,
  86 };
  87
  88 static void mipid_shutdown(struct mipid_platform_data *pdata)
  89 {
  90         if (pdata->nreset_gpio != -1) {
  91                 printk(KERN_INFO "shutdown LCD\n");
  92                 gpio_set_value(pdata->nreset_gpio, 0);
  93                 msleep(120);
  94         }
  95 }
  96
  97 static struct mipid_platform_data nokia770_mipid_platform_data = {
  98         .shutdown = mipid_shutdown,
  99 };
 100
 101 static struct omap_lcd_config nokia770_lcd_config __initdata = {
 102         .ctrl_name      = "hwa742",
 103 };
 104
 105 static void __init mipid_dev_init(void)
 106 {
 107         nokia770_mipid_platform_data.nreset_gpio = 13;
 108         nokia770_mipid_platform_data.data_lines = 16;
 109
 110         omapfb_set_lcd_config(&nokia770_lcd_config);
 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 void __init hwa742_dev_init(void)
 154 {
 155         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 156 }
 157
 158 /* assume no Mini-AB port */
 159
 160 static struct omap_usb_config nokia770_usb_config __initdata = {
 161         .otg            = 1,
 162         .register_host  = 1,
 163         .register_dev   = 1,
 164         .hmc_mode       = 16,
 165         .pins[0]        = 6,
 166 };
 167
 168 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 169
 170 #define NOKIA770_GPIO_MMC_POWER         41
 171 #define NOKIA770_GPIO_MMC_SWITCH        23
 172
 173 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 174                                 int vdd)
 175 {
 176         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 177         return 0;
 178 }
 179
 180 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 181 {
 182         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 183 }
 184
 185 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 186         .nr_slots                       = 1,
 187         .dma_mask                       = 0xffffffff,
 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         spi_register_board_info(nokia770_spi_board_info,
 239                                 ARRAY_SIZE(nokia770_spi_board_info));
 240         omap_serial_init();
 241         omap_register_i2c_bus(1, 100, NULL, 0);
 242         hwa742_dev_init();
 243         ads7846_dev_init();
 244         mipid_dev_init();
 245         omap1_usb_init(&nokia770_usb_config);
 246         nokia770_mmc_init();
 247 }
 248
 249 MACHINE_START(NOKIA770, "Nokia 770")
 250         .atag_offset    = 0x100,
 251         .map_io         = omap16xx_map_io,
 252         .init_early     = omap1_init_early,
 253         .reserve        = omap_reserve,
 254         .init_irq       = omap1_init_irq,
 255         .init_machine   = omap_nokia770_init,
 256         .timer          = &omap1_timer,
 257         .restart        = omap1_restart,
 258 MACHINE_END