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/omapfb.h>
  36 #include <mach/hwa742.h>
  37 #include <mach/lcd_mipid.h>
  38 #include <mach/mmc.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 int nokia770_keymap[] = {
  58         KEY(0, 1, GROUP_0 | KEY_UP),
  59         KEY(0, 2, GROUP_1 | KEY_F5),
  60         KEY(1, 0, GROUP_0 | KEY_LEFT),
  61         KEY(1, 1, GROUP_0 | KEY_ENTER),
  62         KEY(1, 2, GROUP_0 | KEY_RIGHT),
  63         KEY(2, 0, GROUP_1 | KEY_ESC),
  64         KEY(2, 1, GROUP_0 | KEY_DOWN),
  65         KEY(2, 2, GROUP_1 | KEY_F4),
  66         KEY(3, 0, GROUP_2 | KEY_F7),
  67         KEY(3, 1, GROUP_2 | KEY_F8),
  68         KEY(3, 2, GROUP_2 | KEY_F6),
  69         0
  70 };
  71
  72 static struct resource nokia770_kp_resources[] = {
  73         [0] = {
  74                 .start  = INT_KEYBOARD,
  75                 .end    = INT_KEYBOARD,
  76                 .flags  = IORESOURCE_IRQ,
  77         },
  78 };
  79
  80 static struct omap_kp_platform_data nokia770_kp_data = {
  81         .rows           = 8,
  82         .cols           = 8,
  83         .keymap         = nokia770_keymap,
  84         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
  85         .delay          = 4,
  86 };
  87
  88 static struct platform_device nokia770_kp_device = {
  89         .name           = "omap-keypad",
  90         .id             = -1,
  91         .dev            = {
  92                 .platform_data = &nokia770_kp_data,
  93         },
  94         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
  95         .resource       = nokia770_kp_resources,
  96 };
  97
  98 static struct platform_device *nokia770_devices[] __initdata = {
  99         &nokia770_kp_device,
 100 };
 101
 102 static void mipid_shutdown(struct mipid_platform_data *pdata)
 103 {
 104         if (pdata->nreset_gpio != -1) {
 105                 printk(KERN_INFO "shutdown LCD\n");
 106                 gpio_set_value(pdata->nreset_gpio, 0);
 107                 msleep(120);
 108         }
 109 }
 110
 111 static struct mipid_platform_data nokia770_mipid_platform_data = {
 112         .shutdown = mipid_shutdown,
 113 };
 114
 115 static void mipid_dev_init(void)
 116 {
 117         const struct omap_lcd_config *conf;
 118
 119         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
 120         if (conf != NULL) {
 121                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
 122                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
 123         }
 124 }
 125
 126 static void ads7846_dev_init(void)
 127 {
 128         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
 129                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 130 }
 131
 132 static int ads7846_get_pendown_state(void)
 133 {
 134         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
 135 }
 136
 137 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
 138         .x_max          = 0x0fff,
 139         .y_max          = 0x0fff,
 140         .x_plate_ohms   = 180,
 141         .pressure_max   = 255,
 142         .debounce_max   = 10,
 143         .debounce_tol   = 3,
 144         .debounce_rep   = 1,
 145         .get_pendown_state      = ads7846_get_pendown_state,
 146 };
 147
 148 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
 149         [0] = {
 150                 .modalias       = "lcd_mipid",
 151                 .bus_num        = 2,
 152                 .chip_select    = 3,
 153                 .max_speed_hz   = 12000000,
 154                 .platform_data  = &nokia770_mipid_platform_data,
 155         },
 156         [1] = {
 157                 .modalias       = "ads7846",
 158                 .bus_num        = 2,
 159                 .chip_select    = 0,
 160                 .max_speed_hz   = 2500000,
 161                 .irq            = OMAP_GPIO_IRQ(15),
 162                 .platform_data  = &nokia770_ads7846_platform_data,
 163         },
 164 };
 165
 166 static struct {
 167         struct clk *sys_ck;
 168 } hwa742;
 169
 170 static int hwa742_get_clocks(void)
 171 {
 172         hwa742.sys_ck = clk_get(NULL, "bclk");
 173         if (IS_ERR(hwa742.sys_ck)) {
 174                 printk(KERN_ERR "can't get HWA742 clock\n");
 175                 return PTR_ERR(hwa742.sys_ck);
 176         }
 177         return 0;
 178 }
 179
 180 static unsigned long hwa742_get_clock_rate(struct device *dev)
 181 {
 182         return clk_get_rate(hwa742.sys_ck);
 183 }
 184
 185 static void hwa742_power_up(struct device *dev)
 186 {
 187         clk_enable(hwa742.sys_ck);
 188 }
 189
 190 static void hwa742_power_down(struct device *dev)
 191 {
 192         clk_disable(hwa742.sys_ck);
 193 }
 194
 195 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
 196         .get_clock_rate = hwa742_get_clock_rate,
 197         .power_up       = hwa742_power_up,
 198         .power_down     = hwa742_power_down,
 199         .te_connected   = 1,
 200 };
 201
 202 static void hwa742_dev_init(void)
 203 {
 204         hwa742_get_clocks();
 205         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
 206 }
 207
 208 /* assume no Mini-AB port */
 209
 210 static struct omap_usb_config nokia770_usb_config __initdata = {
 211         .otg            = 1,
 212         .register_host  = 1,
 213         .register_dev   = 1,
 214         .hmc_mode       = 16,
 215         .pins[0]        = 6,
 216 };
 217
 218 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
 219
 220 #define NOKIA770_GPIO_MMC_POWER         41
 221 #define NOKIA770_GPIO_MMC_SWITCH        23
 222
 223 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
 224                                 int vdd)
 225 {
 226         if (power_on)
 227                 gpio_set_value(NOKIA770_GPIO_MMC_POWER, 1);
 228         else
 229                 gpio_set_value(NOKIA770_GPIO_MMC_POWER, 0);
 230
 231         return 0;
 232 }
 233
 234 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
 235 {
 236         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
 237 }
 238
 239 static struct omap_mmc_platform_data nokia770_mmc2_data = {
 240         .nr_slots                       = 1,
 241         .dma_mask                       = 0xffffffff,
 242         .slots[0]       = {
 243                 .set_power              = nokia770_mmc_set_power,
 244                 .get_cover_state        = nokia770_mmc_get_cover_state,
 245                 .name                   = "mmcblk",
 246         },
 247 };
 248
 249 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
 250
 251 static void __init nokia770_mmc_init(void)
 252 {
 253         int ret;
 254
 255         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
 256         if (ret < 0)
 257                 return;
 258         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
 259
 260         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
 261         if (ret < 0) {
 262                 gpio_free(NOKIA770_GPIO_MMC_POWER);
 263                 return;
 264         }
 265         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
 266
 267         /* Only the second MMC controller is used */
 268         nokia770_mmc_data[1] = &nokia770_mmc2_data;
 269         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
 270 }
 271
 272 #else
 273 static inline void nokia770_mmc_init(void)
 274 {
 275 }
 276 #endif
 277
 278 static struct omap_board_config_kernel nokia770_config[] __initdata = {
 279         { OMAP_TAG_USB,         NULL },
 280 };
 281
 282 #if     defined(CONFIG_OMAP_DSP)
 283 /*
 284  * audio power control
 285  */
 286 #define HEADPHONE_GPIO          14
 287 #define AMPLIFIER_CTRL_GPIO     58
 288
 289 static struct clk *dspxor_ck;
 290 static DEFINE_MUTEX(audio_pwr_lock);
 291 /*
 292  * audio_pwr_state
 293  * +--+-------------------------+---------------------------------------+
 294  * |-1|down                     |power-up request -> 0                  |
 295  * +--+-------------------------+---------------------------------------+
 296  * | 0|up                       |power-down(1) request -> 1             |
 297  * |  |                         |power-down(2) request -> (ignore)      |
 298  * +--+-------------------------+---------------------------------------+
 299  * | 1|up,                      |power-up request -> 0                  |
 300  * |  |received down(1) request |power-down(2) request -> -1            |
 301  * +--+-------------------------+---------------------------------------+
 302  */
 303 static int audio_pwr_state = -1;
 304
 305 static inline void aic23_power_up(void)
 306 {
 307 }
 308 static inline void aic23_power_down(void)
 309 {
 310 }
 311
 312 /*
 313  * audio_pwr_up / down should be called under audio_pwr_lock
 314  */
 315 static void nokia770_audio_pwr_up(void)
 316 {
 317         clk_enable(dspxor_ck);
 318
 319         /* Turn on codec */
 320         aic23_power_up();
 321
 322         if (gpio_get_value(HEADPHONE_GPIO))
 323                 /* HP not connected, turn on amplifier */
 324                 gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
 325         else
 326                 /* HP connected, do not turn on amplifier */
 327                 printk("HP connected\n");
 328 }
 329
 330 static void codec_delayed_power_down(struct work_struct *work)
 331 {
 332         mutex_lock(&audio_pwr_lock);
 333         if (audio_pwr_state == -1)
 334                 aic23_power_down();
 335         clk_disable(dspxor_ck);
 336         mutex_unlock(&audio_pwr_lock);
 337 }
 338
 339 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
 340
 341 static void nokia770_audio_pwr_down(void)
 342 {
 343         /* Turn off amplifier */
 344         gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);
 345
 346         /* Turn off codec: schedule delayed work */
 347         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
 348 }
 349
 350 static int
 351 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
 352 {
 353         mutex_lock(&audio_pwr_lock);
 354         if (audio_pwr_state == -1)
 355                 nokia770_audio_pwr_up();
 356         /* force audio_pwr_state = 0, even if it was 1. */
 357         audio_pwr_state = 0;
 358         mutex_unlock(&audio_pwr_lock);
 359         return 0;
 360 }
 361
 362 static int
 363 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
 364 {
 365         mutex_lock(&audio_pwr_lock);
 366         switch (stage) {
 367         case 1:
 368                 if (audio_pwr_state == 0)
 369                         audio_pwr_state = 1;
 370                 break;
 371         case 2:
 372                 if (audio_pwr_state == 1) {
 373                         nokia770_audio_pwr_down();
 374                         audio_pwr_state = -1;
 375                 }
 376                 break;
 377         }
 378         mutex_unlock(&audio_pwr_lock);
 379         return 0;
 380 }
 381
 382 static struct dsp_kfunc_device nokia770_audio_device = {
 383         .name    = "audio",
 384         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
 385         .enable  = nokia770_audio_pwr_up_request,
 386         .disable = nokia770_audio_pwr_down_request,
 387 };
 388
 389 static __init int omap_dsp_init(void)
 390 {
 391         int ret;
 392
 393         dspxor_ck = clk_get(0, "dspxor_ck");
 394         if (IS_ERR(dspxor_ck)) {
 395                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
 396                 return PTR_ERR(dspxor_ck);
 397         }
 398
 399         ret = dsp_kfunc_device_register(&nokia770_audio_device);
 400         if (ret) {
 401                 printk(KERN_ERR
 402                        "KFUNC device registration faild: %s\n",
 403                        nokia770_audio_device.name);
 404                 goto out;
 405         }
 406         return 0;
 407  out:
 408         return ret;
 409 }
 410 #else
 411 #define omap_dsp_init()         do {} while (0)
 412 #endif  /* CONFIG_OMAP_DSP */
 413
 414 static void __init omap_nokia770_init(void)
 415 {
 416         nokia770_config[0].data = &nokia770_usb_config;
 417
 418         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
 419         spi_register_board_info(nokia770_spi_board_info,
 420                                 ARRAY_SIZE(nokia770_spi_board_info));
 421         omap_board_config = nokia770_config;
 422         omap_board_config_size = ARRAY_SIZE(nokia770_config);
 423         omap_gpio_init();
 424         omap_serial_init();
 425         omap_register_i2c_bus(1, 100, NULL, 0);
 426         omap_dsp_init();
 427         hwa742_dev_init();
 428         ads7846_dev_init();
 429         mipid_dev_init();
 430         nokia770_mmc_init();
 431 }
 432
 433 static void __init omap_nokia770_map_io(void)
 434 {
 435         omap1_map_common_io();
 436 }
 437
 438 MACHINE_START(NOKIA770, "Nokia 770")
 439         .phys_io        = 0xfff00000,
 440         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 441         .boot_params    = 0x10000100,
 442         .map_io         = omap_nokia770_map_io,
 443         .init_irq       = omap_nokia770_init_irq,
 444         .init_machine   = omap_nokia770_init,
 445         .timer          = &omap_timer,
 446 MACHINE_END