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/dsp_common.h>
  36 #include <plat/hwa742.h>
  37 #include <plat/lcd_mipid.h>
  38 #include <plat/mmc.h>
  39 #include <plat/clock.h>
  40
  41 #define ADS7846_PENDOWN_GPIO    15
  42
  43 static void __init omap_nokia770_init_irq(void)
  44 {
  45         /* On Nokia 770, the SleepX signal is masked with an
  46          * MPUIO line by default.  It has to be unmasked for it
  47          * to become functional */
  48
  49         /* SleepX mask direction */
  50         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
  51         /* Unmask SleepX signal */
  52         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
  53
  54         omap1_init_common_hw();
  55         omap_init_irq();
  56 }
  57
  58 static int nokia770_keymap[] = {
  59         KEY(0, 1, GROUP_0 | KEY_UP),
  60         KEY(0, 2, GROUP_1 | KEY_F5),
  61         KEY(1, 0, GROUP_0 | KEY_LEFT),
  62         KEY(1, 1, GROUP_0 | KEY_ENTER),
  63         KEY(1, 2, GROUP_0 | KEY_RIGHT),
  64         KEY(2, 0, GROUP_1 | KEY_ESC),
  65         KEY(2, 1, GROUP_0 | KEY_DOWN),
  66         KEY(2, 2, GROUP_1 | KEY_F4),
  67         KEY(3, 0, GROUP_2 | KEY_F7),
  68         KEY(3, 1, GROUP_2 | KEY_F8),
  69         KEY(3, 2, GROUP_2 | KEY_F6),
  70         0
  71 };
  72
  73 static struct resource nokia770_kp_resources[] = {
  74         [0] = {
  75                 .start  = INT_KEYBOARD,
  76                 .end    = INT_KEYBOARD,
  77                 .flags  = IORESOURCE_IRQ,
  78         },
  79 };
  80
  81 static struct omap_kp_platform_data nokia770_kp_data = {
  82         .rows           = 8,
  83         .cols           = 8,
  84         .keymap         = nokia770_keymap,
  85         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
  86         .delay          = 4,
  87 };
  88
  89 static struct platform_device nokia770_kp_device = {
  90         .name           = "omap-keypad",
  91         .id             = -1,
  92         .dev            = {
  93                 .platform_data = &nokia770_kp_data,
  94         },
  95         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  96         .resource       = nokia770_kp_resources,
  97 };
  98
  99 static struct platform_device *nokia770_devices[] __initdata = {
 100         &nokia770_kp_device,
 101 };
 102
 103 static void mipid_shutdown(struct mipid_platform_data *pdata)
 104 {
 105         if (pdata->nreset_gpio != -1) {
 106                 printk(KERN_INFO "shutdown LCD\n");
 107                 gpio_set_value(pdata->nreset_gpio, 0);
 108                 msleep(120);
 109         }
 110 }
 111
 112 static struct mipid_platform_data nokia770_mipid_platform_data = {
 113         .shutdown = mipid_shutdown,
 114 };
 115
 116 static void mipid_dev_init(void)
 117 {
 118         const struct omap_lcd_config *conf;
 119
 120         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 121         if (conf != NULL) {
 122                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 123                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 124         }
 125 }
 126
 127 static void ads7846_dev_init(void)
 128 {
 129         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
 130                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 131 }
 132
 133 static int ads7846_get_pendown_state(void)
 134 {
 135         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
 136 }
 137
 138 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 139         .x_max          = 0x0fff,
 140         .y_max          = 0x0fff,
 141         .x_plate_ohms   = 180,
 142         .pressure_max   = 255,
 143         .debounce_max   = 10,
 144         .debounce_tol   = 3,
 145         .debounce_rep   = 1,
 146         .get_pendown_state      = ads7846_get_pendown_state,
 147 };
 148
 149 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 150         [0] = {
 151                 .modalias       = "lcd_mipid",
 152                 .bus_num        = 2,
 153                 .chip_select    = 3,
 154                 .max_speed_hz   = 12000000,
 155                 .platform_data  = &nokia770_mipid_platform_data,
 156         },
 157         [1] = {
 158                 .modalias       = "ads7846",
 159                 .bus_num        = 2,
 160                 .chip_select    = 0,
 161                 .max_speed_hz   = 2500000,
 162                 .irq            = OMAP_GPIO_IRQ(15),
 163                 .platform_data  = &nokia770_ads7846_platform_data,
 164         },
 165 };
 166
 167 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 168         .te_connected           = 1,
 169 };
 170
 171 static void hwa742_dev_init(void)
 172 {
 173         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
 174         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 175 }
 176
 177 /* assume no Mini-AB port */
 178
 179 static struct omap_usb_config nokia770_usb_config __initdata = {
 180         .otg            = 1,
 181         .register_host  = 1,
 182         .register_dev   = 1,
 183         .hmc_mode       = 16,
 184         .pins[0]        = 6,
 185 };
 186
 187 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 188
 189 #define NOKIA770_GPIO_MMC_POWER         41
 190 #define NOKIA770_GPIO_MMC_SWITCH        23
 191
 192 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 193                                 int vdd)
 194 {
 195         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
 196         return 0;
 197 }
 198
 199 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 200 {
 201         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 202 }
 203
 204 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 205         .nr_slots                       = 1,
 206         .dma_mask                       = 0xffffffff,
 207         .max_freq                       = 12000000,
 208         .slots[0]       = {
 209                 .set_power              = nokia770_mmc_set_power,
 210                 .get_cover_state        = nokia770_mmc_get_cover_state,
 211                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 212                 .name                   = "mmcblk",
 213         },
 214 };
 215
 216 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 217
 218 static void __init nokia770_mmc_init(void)
 219 {
 220         int ret;
 221
 222         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 223         if (ret < 0)
 224                 return;
 225         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 226
 227         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 228         if (ret < 0) {
 229                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 230                 return;
 231         }
 232         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 233
 234         /* Only the second MMC controller is used */
 235         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 236         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 237 }
 238
 239 #else
 240 static inline void nokia770_mmc_init(void)
 241 {
 242 }
 243 #endif
 244
 245 #if     defined(CONFIG_OMAP_DSP)
 246 /*
 247  * audio power control
 248  */
 249 #define HEADPHONE_GPIO          14
 250 #define AMPLIFIER_CTRL_GPIO     58
 251
 252 static struct clk *dspxor_ck;
 253 static DEFINE_MUTEX(audio_pwr_lock);
 254 /*
 255  * audio_pwr_state
 256  * +--+-------------------------+---------------------------------------+
 257  * |-1|down                     |power-up request -> 0                  |
 258  * +--+-------------------------+---------------------------------------+
 259  * | 0|up                       |power-down(1) request -> 1             |
 260  * |  |                         |power-down(2) request -> (ignore)      |
 261  * +--+-------------------------+---------------------------------------+
 262  * | 1|up,                      |power-up request -> 0                  |
 263  * |  |received down(1) request |power-down(2) request -> -1            |
 264  * +--+-------------------------+---------------------------------------+
 265  */
 266 static int audio_pwr_state = -1;
 267
 268 static inline void aic23_power_up(void)
 269 {
 270 }
 271 static inline void aic23_power_down(void)
 272 {
 273 }
 274
 275 /*
 276  * audio_pwr_up / down should be called under audio_pwr_lock
 277  */
 278 static void nokia770_audio_pwr_up(void)
 279 {
 280         clk_enable(dspxor_ck);
 281
 282         /* Turn on codec */
 283         aic23_power_up();
 284
 285         if (gpio_get_value(HEADPHONE_GPIO))
 286                 /* HP not connected, turn on amplifier */
 287                 gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
 288         else
 289                 /* HP connected, do not turn on amplifier */
 290                 printk("HP connected\n");
 291 }
 292
 293 static void codec_delayed_power_down(struct work_struct *work)
 294 {
 295         mutex_lock(&audio_pwr_lock);
 296         if (audio_pwr_state == -1)
 297                 aic23_power_down();
 298         clk_disable(dspxor_ck);
 299         mutex_unlock(&audio_pwr_lock);
 300 }
 301
 302 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
 303
 304 static void nokia770_audio_pwr_down(void)
 305 {
 306         /* Turn off amplifier */
 307         gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);
 308
 309         /* Turn off codec: schedule delayed work */
 310         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
 311 }
 312
 313 static int
 314 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
 315 {
 316         mutex_lock(&audio_pwr_lock);
 317         if (audio_pwr_state == -1)
 318                 nokia770_audio_pwr_up();
 319         /* force audio_pwr_state = 0, even if it was 1. */
 320         audio_pwr_state = 0;
 321         mutex_unlock(&audio_pwr_lock);
 322         return 0;
 323 }
 324
 325 static int
 326 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
 327 {
 328         mutex_lock(&audio_pwr_lock);
 329         switch (stage) {
 330         case 1:
 331                 if (audio_pwr_state == 0)
 332                         audio_pwr_state = 1;
 333                 break;
 334         case 2:
 335                 if (audio_pwr_state == 1) {
 336                         nokia770_audio_pwr_down();
 337                         audio_pwr_state = -1;
 338                 }
 339                 break;
 340         }
 341         mutex_unlock(&audio_pwr_lock);
 342         return 0;
 343 }
 344
 345 static struct dsp_kfunc_device nokia770_audio_device = {
 346         .name    = "audio",
 347         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
 348         .enable  = nokia770_audio_pwr_up_request,
 349         .disable = nokia770_audio_pwr_down_request,
 350 };
 351
 352 static __init int omap_dsp_init(void)
 353 {
 354         int ret;
 355
 356         dspxor_ck = clk_get(0, "dspxor_ck");
 357         if (IS_ERR(dspxor_ck)) {
 358                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
 359                 return PTR_ERR(dspxor_ck);
 360         }
 361
 362         ret = dsp_kfunc_device_register(&nokia770_audio_device);
 363         if (ret) {
 364                 printk(KERN_ERR
 365                        "KFUNC device registration faild: %s\n",
 366                        nokia770_audio_device.name);
 367                 goto out;
 368         }
 369         return 0;
 370  out:
 371         return ret;
 372 }
 373 #else
 374 #define omap_dsp_init()         do {} while (0)
 375 #endif  /* CONFIG_OMAP_DSP */
 376
 377 static void __init omap_nokia770_init(void)
 378 {
 379         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 380         spi_register_board_info(nokia770_spi_board_info,
 381                                 ARRAY_SIZE(nokia770_spi_board_info));
 382         omap_gpio_init();
 383         omap_serial_init();
 384         omap_register_i2c_bus(1, 100, NULL, 0);
 385         omap_dsp_init();
 386         hwa742_dev_init();
 387         ads7846_dev_init();
 388         mipid_dev_init();
 389         omap_usb_init(&nokia770_usb_config);
 390         nokia770_mmc_init();
 391 }
 392
 393 static void __init omap_nokia770_map_io(void)
 394 {
 395         omap1_map_common_io();
 396 }
 397
 398 MACHINE_START(NOKIA770, "Nokia 770")
 399         .phys_io        = 0xfff00000,
 400         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 401         .boot_params    = 0x10000100,
 402         .map_io         = omap_nokia770_map_io,
 403         .init_irq       = omap_nokia770_init_irq,
 404         .init_machine   = omap_nokia770_init,
 405         .timer          = &omap_timer,
 406 MACHINE_END