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