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
  18 #include <linux/spi/spi.h>
  19 #include <linux/spi/ads7846.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/delay.h>
  22
  23 #include <mach/hardware.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27
  28 #include <mach/gpio.h>
  29 #include <mach/mux.h>
  30 #include <mach/usb.h>
  31 #include <mach/board.h>
  32 #include <mach/keypad.h>
  33 #include <mach/common.h>
  34 #include <mach/dsp_common.h>
  35 #include <mach/aic23.h>
  36 #include <mach/omapfb.h>
  37 #include <mach/hwa742.h>
  38 #include <mach/lcd_mipid.h>
  39 #include <mach/mmc.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                 omap_set_gpio_dataout(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 (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 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 !omap_get_gpio_datain(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 {
 168         struct clk *sys_ck;
 169 } hwa742;
 170
 171 static int hwa742_get_clocks(void)
 172 {
 173         hwa742.sys_ck = clk_get(NULL, "bclk");
 174         if (IS_ERR(hwa742.sys_ck)) {
 175                 printk(KERN_ERR "can't get HWA742 clock\n");
 176                 return PTR_ERR(hwa742.sys_ck);
 177         }
 178         return 0;
 179 }
 180
 181 static unsigned long hwa742_get_clock_rate(struct device *dev)
 182 {
 183         return clk_get_rate(hwa742.sys_ck);
 184 }
 185
 186 static void hwa742_power_up(struct device *dev)
 187 {
 188         clk_enable(hwa742.sys_ck);
 189 }
 190
 191 static void hwa742_power_down(struct device *dev)
 192 {
 193         clk_disable(hwa742.sys_ck);
 194 }
 195
 196 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 197         .get_clock_rate = hwa742_get_clock_rate,
 198         .power_up       = hwa742_power_up,
 199         .power_down     = hwa742_power_down,
 200         .te_connected   = 1,
 201 };
 202
 203 static void hwa742_dev_init(void)
 204 {
 205         hwa742_get_clocks();
 206         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 207 }
 208
 209 /* assume no Mini-AB port */
 210
 211 static struct omap_usb_config nokia770_usb_config __initdata = {
 212         .otg            = 1,
 213         .register_host  = 1,
 214         .register_dev   = 1,
 215         .hmc_mode       = 16,
 216         .pins[0]        = 6,
 217 };
 218
 219 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 220
 221 #define NOKIA770_GPIO_MMC_POWER         41
 222 #define NOKIA770_GPIO_MMC_SWITCH        23
 223
 224 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 225                                 int vdd)
 226 {
 227         if (power_on)
 228                 gpio_set_value(NOKIA770_GPIO_MMC_POWER, 1);
 229         else
 230                 gpio_set_value(NOKIA770_GPIO_MMC_POWER, 0);
 231
 232         return 0;
 233 }
 234
 235 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 236 {
 237         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 238 }
 239
 240 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 241         .nr_slots                       = 1,
 242         .dma_mask                       = 0xffffffff,
 243         .slots[0]       = {
 244                 .set_power              = nokia770_mmc_set_power,
 245                 .get_cover_state        = nokia770_mmc_get_cover_state,
 246                 .name                   = "mmcblk",
 247         },
 248 };
 249
 250 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 251
 252 static void __init nokia770_mmc_init(void)
 253 {
 254         int ret;
 255
 256         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 257         if (ret < 0)
 258                 return;
 259         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 260
 261         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 262         if (ret < 0) {
 263                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 264                 return;
 265         }
 266         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 267
 268         /* Only the second MMC controller is used */
 269         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 270         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 271 }
 272
 273 #else
 274 static inline void nokia770_mmc_init(void)
 275 {
 276 }
 277 #endif
 278
 279 static struct omap_board_config_kernel nokia770_config[] __initdata = {
 280         { OMAP_TAG_USB,         NULL },
 281 };
 282
 283 #if     defined(CONFIG_OMAP_DSP)
 284 /*
 285  * audio power control
 286  */
 287 #define HEADPHONE_GPIO          14
 288 #define AMPLIFIER_CTRL_GPIO     58
 289
 290 static struct clk *dspxor_ck;
 291 static DEFINE_MUTEX(audio_pwr_lock);
 292 /*
 293  * audio_pwr_state
 294  * +--+-------------------------+---------------------------------------+
 295  * |-1|down                     |power-up request -> 0                  |
 296  * +--+-------------------------+---------------------------------------+
 297  * | 0|up                       |power-down(1) request -> 1             |
 298  * |  |                         |power-down(2) request -> (ignore)      |
 299  * +--+-------------------------+---------------------------------------+
 300  * | 1|up,                      |power-up request -> 0                  |
 301  * |  |received down(1) request |power-down(2) request -> -1            |
 302  * +--+-------------------------+---------------------------------------+
 303  */
 304 static int audio_pwr_state = -1;
 305
 306 /*
 307  * audio_pwr_up / down should be called under audio_pwr_lock
 308  */
 309 static void nokia770_audio_pwr_up(void)
 310 {
 311         clk_enable(dspxor_ck);
 312
 313         /* Turn on codec */
 314         aic23_power_up();
 315
 316         if (omap_get_gpio_datain(HEADPHONE_GPIO))
 317                 /* HP not connected, turn on amplifier */
 318                 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
 319         else
 320                 /* HP connected, do not turn on amplifier */
 321                 printk("HP connected\n");
 322 }
 323
 324 static void codec_delayed_power_down(struct work_struct *work)
 325 {
 326         mutex_lock(&audio_pwr_lock);
 327         if (audio_pwr_state == -1)
 328                 aic23_power_down();
 329         clk_disable(dspxor_ck);
 330         mutex_unlock(&audio_pwr_lock);
 331 }
 332
 333 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
 334
 335 static void nokia770_audio_pwr_down(void)
 336 {
 337         /* Turn off amplifier */
 338         omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
 339
 340         /* Turn off codec: schedule delayed work */
 341         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
 342 }
 343
 344 static int
 345 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
 346 {
 347         mutex_lock(&audio_pwr_lock);
 348         if (audio_pwr_state == -1)
 349                 nokia770_audio_pwr_up();
 350         /* force audio_pwr_state = 0, even if it was 1. */
 351         audio_pwr_state = 0;
 352         mutex_unlock(&audio_pwr_lock);
 353         return 0;
 354 }
 355
 356 static int
 357 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
 358 {
 359         mutex_lock(&audio_pwr_lock);
 360         switch (stage) {
 361         case 1:
 362                 if (audio_pwr_state == 0)
 363                         audio_pwr_state = 1;
 364                 break;
 365         case 2:
 366                 if (audio_pwr_state == 1) {
 367                         nokia770_audio_pwr_down();
 368                         audio_pwr_state = -1;
 369                 }
 370                 break;
 371         }
 372         mutex_unlock(&audio_pwr_lock);
 373         return 0;
 374 }
 375
 376 static struct dsp_kfunc_device nokia770_audio_device = {
 377         .name    = "audio",
 378         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
 379         .enable  = nokia770_audio_pwr_up_request,
 380         .disable = nokia770_audio_pwr_down_request,
 381 };
 382
 383 static __init int omap_dsp_init(void)
 384 {
 385         int ret;
 386
 387         dspxor_ck = clk_get(0, "dspxor_ck");
 388         if (IS_ERR(dspxor_ck)) {
 389                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
 390                 return PTR_ERR(dspxor_ck);
 391         }
 392
 393         ret = dsp_kfunc_device_register(&nokia770_audio_device);
 394         if (ret) {
 395                 printk(KERN_ERR
 396                        "KFUNC device registration faild: %s\n",
 397                        nokia770_audio_device.name);
 398                 goto out;
 399         }
 400         return 0;
 401  out:
 402         return ret;
 403 }
 404 #else
 405 #define omap_dsp_init()         do {} while (0)
 406 #endif  /* CONFIG_OMAP_DSP */
 407
 408 static void __init omap_nokia770_init(void)
 409 {
 410         nokia770_config[0].data = &nokia770_usb_config;
 411
 412         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 413         spi_register_board_info(nokia770_spi_board_info,
 414                                 ARRAY_SIZE(nokia770_spi_board_info));
 415         omap_board_config = nokia770_config;
 416         omap_board_config_size = ARRAY_SIZE(nokia770_config);
 417         omap_gpio_init();
 418         omap_serial_init();
 419         omap_register_i2c_bus(1, 100, NULL, 0);
 420         omap_dsp_init();
 421         hwa742_dev_init();
 422         ads7846_dev_init();
 423         mipid_dev_init();
 424         nokia770_mmc_init();
 425 }
 426
 427 static void __init omap_nokia770_map_io(void)
 428 {
 429         omap1_map_common_io();
 430 }
 431
 432 MACHINE_START(NOKIA770, "Nokia 770")
 433         .phys_io        = 0xfff00000,
 434         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 435         .boot_params    = 0x10000100,
 436         .map_io         = omap_nokia770_map_io,
 437         .init_irq       = omap_nokia770_init_irq,
 438         .init_machine   = omap_nokia770_init,
 439         .timer          = &omap_timer,
 440 MACHINE_END