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 const unsigned int nokia770_keymap[] = {
  58         KEY(1, 0, GROUP_0 | KEY_UP),
  59         KEY(2, 0, GROUP_1 | KEY_F5),
  60         KEY(0, 1, GROUP_0 | KEY_LEFT),
  61         KEY(1, 1, GROUP_0 | KEY_ENTER),
  62         KEY(2, 1, GROUP_0 | KEY_RIGHT),
  63         KEY(0, 2, GROUP_1 | KEY_ESC),
  64         KEY(1, 2, GROUP_0 | KEY_DOWN),
  65         KEY(2, 2, GROUP_1 | KEY_F4),
  66         KEY(0, 3, GROUP_2 | KEY_F7),
  67         KEY(1, 3, GROUP_2 | KEY_F8),
  68         KEY(2, 3, GROUP_2 | KEY_F6),
  69 };
  70
  71 static struct resource nokia770_kp_resources[] = {
  72         [0] = {
  73                 .start  = INT_KEYBOARD,
  74                 .end    = INT_KEYBOARD,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static const struct matrix_keymap_data nokia770_keymap_data = {
  80         .keymap         = nokia770_keymap,
  81         .keymap_size    = ARRAY_SIZE(nokia770_keymap),
  82 };
  83
  84 static struct omap_kp_platform_data nokia770_kp_data = {
  85         .rows           = 8,
  86         .cols           = 8,
  87         .keymap_data    = &nokia770_keymap_data,
  88         .delay          = 4,
  89 };
  90
  91 static struct platform_device nokia770_kp_device = {
  92         .name           = "omap-keypad",
  93         .id             = -1,
  94         .dev            = {
  95                 .platform_data = &nokia770_kp_data,
  96         },
  97         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  98         .resource       = nokia770_kp_resources,
  99 };
 100
 101 static struct platform_device *nokia770_devices[] __initdata = {
 102         &nokia770_kp_device,
 103 };
 104
 105 static void mipid_shutdown(struct mipid_platform_data *pdata)
 106 {
 107         if (pdata->nreset_gpio != -1) {
 108                 printk(KERN_INFO "shutdown LCD\n");
 109                 gpio_set_value(pdata->nreset_gpio, 0);
 110                 msleep(120);
 111         }
 112 }
 113
 114 static struct mipid_platform_data nokia770_mipid_platform_data = {
 115         .shutdown = mipid_shutdown,
 116 };
 117
 118 static void __init mipid_dev_init(void)
 119 {
 120         const struct omap_lcd_config *conf;
 121
 122         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 123         if (conf != NULL) {
 124                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 125                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 126         }
 127 }
 128
 129 static void __init ads7846_dev_init(void)
 130 {
 131         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
 132                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 133 }
 134
 135 static int ads7846_get_pendown_state(void)
 136 {
 137         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
 138 }
 139
 140 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 141         .x_max          = 0x0fff,
 142         .y_max          = 0x0fff,
 143         .x_plate_ohms   = 180,
 144         .pressure_max   = 255,
 145         .debounce_max   = 10,
 146         .debounce_tol   = 3,
 147         .debounce_rep   = 1,
 148         .get_pendown_state      = ads7846_get_pendown_state,
 149 };
 150
 151 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 152         [0] = {
 153                 .modalias       = "lcd_mipid",
 154                 .bus_num        = 2,
 155                 .chip_select    = 3,
 156                 .max_speed_hz   = 12000000,
 157                 .platform_data  = &nokia770_mipid_platform_data,
 158         },
 159         [1] = {
 160                 .modalias       = "ads7846",
 161                 .bus_num        = 2,
 162                 .chip_select    = 0,
 163                 .max_speed_hz   = 2500000,
 164                 .irq            = OMAP_GPIO_IRQ(15),
 165                 .platform_data  = &nokia770_ads7846_platform_data,
 166         },
 167 };
 168
 169 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 170         .te_connected           = 1,
 171 };
 172
 173 static void __init hwa742_dev_init(void)
 174 {
 175         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 176         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 177 }
 178
 179 /* assume no Mini-AB port */
 180
 181 static struct omap_usb_config nokia770_usb_config __initdata = {
 182         .otg            = 1,
 183         .register_host  = 1,
 184         .register_dev   = 1,
 185         .hmc_mode       = 16,
 186         .pins[0]        = 6,
 187 };
 188
 189 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 190
 191 #define NOKIA770_GPIO_MMC_POWER         41
 192 #define NOKIA770_GPIO_MMC_SWITCH        23
 193
 194 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 195                                 int vdd)
 196 {
 197         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 198         return 0;
 199 }
 200
 201 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 202 {
 203         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 204 }
 205
 206 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 207         .nr_slots                       = 1,
 208         .dma_mask                       = 0xffffffff,
 209         .max_freq                       = 12000000,
 210         .slots[0]       = {
 211                 .set_power              = nokia770_mmc_set_power,
 212                 .get_cover_state        = nokia770_mmc_get_cover_state,
 213                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 214                 .name                   = "mmcblk",
 215         },
 216 };
 217
 218 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 219
 220 static void __init nokia770_mmc_init(void)
 221 {
 222         int ret;
 223
 224         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 225         if (ret < 0)
 226                 return;
 227         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 228
 229         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 230         if (ret < 0) {
 231                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 232                 return;
 233         }
 234         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 235
 236         /* Only the second MMC controller is used */
 237         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 238         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 239 }
 240
 241 #else
 242 static inline void nokia770_mmc_init(void)
 243 {
 244 }
 245 #endif
 246
 247 static void __init omap_nokia770_init(void)
 248 {
 249         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 250         spi_register_board_info(nokia770_spi_board_info,
 251                                 ARRAY_SIZE(nokia770_spi_board_info));
 252         omap_serial_init();
 253         omap_register_i2c_bus(1, 100, NULL, 0);
 254         hwa742_dev_init();
 255         ads7846_dev_init();
 256         mipid_dev_init();
 257         omap1_usb_init(&nokia770_usb_config);
 258         nokia770_mmc_init();
 259 }
 260
 261 static void __init omap_nokia770_map_io(void)
 262 {
 263         omap1_map_common_io();
 264 }
 265
 266 MACHINE_START(NOKIA770, "Nokia 770")
 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