arch/arm/mach-pxa/palmt5.c

   1 /*
   2  * Hardware definitions for Palm Tungsten|T5
   3  *
   4  * Author:      Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Ales Snuparek <snuparek@atlas.cz>
   8  *              Justin Kendrick <twilightsentry@gmail.com>
   9  *              RichardT5 <richard_t5@users.sourceforge.net>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * (find more info at www.hackndev.com)
  16  *
  17  */
  18
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/irq.h>
  22 #include <linux/gpio_keys.h>
  23 #include <linux/input.h>
  24 #include <linux/pda_power.h>
  25 #include <linux/pwm_backlight.h>
  26 #include <linux/gpio.h>
  27 #include <linux/wm97xx_batt.h>
  28 #include <linux/power_supply.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/pxa27x.h>
  35 #include <mach/audio.h>
  36 #include <mach/palmt5.h>
  37 #include <mach/mmc.h>
  38 #include <mach/pxafb.h>
  39 #include <mach/irda.h>
  40 #include <mach/pxa27x_keypad.h>
  41 #include <mach/udc.h>
  42 #include <mach/palmasoc.h>
  43
  44 #include "generic.h"
  45 #include "devices.h"
  46
  47 /******************************************************************************
  48  * Pin configuration
  49  ******************************************************************************/
  50 static unsigned long palmt5_pin_config[] __initdata = {
  51         /* MMC */
  52         GPIO32_MMC_CLK,
  53         GPIO92_MMC_DAT_0,
  54         GPIO109_MMC_DAT_1,
  55         GPIO110_MMC_DAT_2,
  56         GPIO111_MMC_DAT_3,
  57         GPIO112_MMC_CMD,
  58         GPIO14_GPIO,    /* SD detect */
  59         GPIO114_GPIO,   /* SD power */
  60         GPIO115_GPIO,   /* SD r/o switch */
  61
  62         /* AC97 */
  63         GPIO28_AC97_BITCLK,
  64         GPIO29_AC97_SDATA_IN_0,
  65         GPIO30_AC97_SDATA_OUT,
  66         GPIO31_AC97_SYNC,
  67
  68         /* IrDA */
  69         GPIO40_GPIO,    /* ir disable */
  70         GPIO46_FICP_RXD,
  71         GPIO47_FICP_TXD,
  72
  73         /* USB */
  74         GPIO15_GPIO,    /* usb detect */
  75         GPIO95_GPIO,    /* usb power */
  76
  77         /* MATRIX KEYPAD */
  78         GPIO100_KP_MKIN_0,
  79         GPIO101_KP_MKIN_1,
  80         GPIO102_KP_MKIN_2,
  81         GPIO97_KP_MKIN_3,
  82         GPIO103_KP_MKOUT_0,
  83         GPIO104_KP_MKOUT_1,
  84         GPIO105_KP_MKOUT_2,
  85
  86         /* LCD */
  87         GPIO58_LCD_LDD_0,
  88         GPIO59_LCD_LDD_1,
  89         GPIO60_LCD_LDD_2,
  90         GPIO61_LCD_LDD_3,
  91         GPIO62_LCD_LDD_4,
  92         GPIO63_LCD_LDD_5,
  93         GPIO64_LCD_LDD_6,
  94         GPIO65_LCD_LDD_7,
  95         GPIO66_LCD_LDD_8,
  96         GPIO67_LCD_LDD_9,
  97         GPIO68_LCD_LDD_10,
  98         GPIO69_LCD_LDD_11,
  99         GPIO70_LCD_LDD_12,
 100         GPIO71_LCD_LDD_13,
 101         GPIO72_LCD_LDD_14,
 102         GPIO73_LCD_LDD_15,
 103         GPIO74_LCD_FCLK,
 104         GPIO75_LCD_LCLK,
 105         GPIO76_LCD_PCLK,
 106         GPIO77_LCD_BIAS,
 107
 108         /* PWM */
 109         GPIO16_PWM0_OUT,
 110
 111         /* MISC */
 112         GPIO10_GPIO,    /* hotsync button */
 113         GPIO90_GPIO,    /* power detect */
 114         GPIO107_GPIO,   /* earphone detect */
 115 };
 116
 117 /******************************************************************************
 118  * SD/MMC card controller
 119  ******************************************************************************/
 120 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
 121                                 void *data)
 122 {
 123         int err = 0;
 124
 125         /* Setup an interrupt for detecting card insert/remove events */
 126         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
 127         if (err)
 128                 goto err;
 129         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
 130         if (err)
 131                 goto err2;
 132         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
 133                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 134                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 135                         "SD/MMC card detect", data);
 136         if (err) {
 137                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 138                                 __func__);
 139                 goto err2;
 140         }
 141
 142         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
 143         if (err)
 144                 goto err3;
 145         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
 146         if (err)
 147                 goto err4;
 148
 149         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
 150         if (err)
 151                 goto err4;
 152         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
 153         if (err)
 154                 goto err5;
 155
 156         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 157
 158         return 0;
 159
 160 err5:
 161         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 162 err4:
 163         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 164 err3:
 165         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
 166 err2:
 167         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 168 err:
 169         return err;
 170 }
 171
 172 static void palmt5_mci_exit(struct device *dev, void *data)
 173 {
 174         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 175         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 176         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
 177         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 178 }
 179
 180 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
 181 {
 182         struct pxamci_platform_data *p_d = dev->platform_data;
 183         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
 184 }
 185
 186 static int palmt5_mci_get_ro(struct device *dev)
 187 {
 188         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
 189 }
 190
 191 static struct pxamci_platform_data palmt5_mci_platform_data = {
 192         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 193         .setpower       = palmt5_mci_power,
 194         .get_ro         = palmt5_mci_get_ro,
 195         .init           = palmt5_mci_init,
 196         .exit           = palmt5_mci_exit,
 197 };
 198
 199 /******************************************************************************
 200  * GPIO keyboard
 201  ******************************************************************************/
 202 static unsigned int palmt5_matrix_keys[] = {
 203         KEY(0, 0, KEY_POWER),
 204         KEY(0, 1, KEY_F1),
 205         KEY(0, 2, KEY_ENTER),
 206
 207         KEY(1, 0, KEY_F2),
 208         KEY(1, 1, KEY_F3),
 209         KEY(1, 2, KEY_F4),
 210
 211         KEY(2, 0, KEY_UP),
 212         KEY(2, 2, KEY_DOWN),
 213
 214         KEY(3, 0, KEY_RIGHT),
 215         KEY(3, 2, KEY_LEFT),
 216 };
 217
 218 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 219         .matrix_key_rows        = 4,
 220         .matrix_key_cols        = 3,
 221         .matrix_key_map         = palmt5_matrix_keys,
 222         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 223
 224         .debounce_interval      = 30,
 225 };
 226
 227 /******************************************************************************
 228  * GPIO keys
 229  ******************************************************************************/
 230 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 231         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 232 };
 233
 234 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 235         .buttons        = palmt5_pxa_buttons,
 236         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 237 };
 238
 239 static struct platform_device palmt5_pxa_keys = {
 240         .name   = "gpio-keys",
 241         .id     = -1,
 242         .dev    = {
 243                 .platform_data = &palmt5_pxa_keys_data,
 244         },
 245 };
 246
 247 /******************************************************************************
 248  * Backlight
 249  ******************************************************************************/
 250 static int palmt5_backlight_init(struct device *dev)
 251 {
 252         int ret;
 253
 254         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 255         if (ret)
 256                 goto err;
 257         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 258         if (ret)
 259                 goto err2;
 260         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 261         if (ret)
 262                 goto err2;
 263         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 264         if (ret)
 265                 goto err3;
 266
 267         return 0;
 268 err3:
 269         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 270 err2:
 271         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 272 err:
 273         return ret;
 274 }
 275
 276 static int palmt5_backlight_notify(int brightness)
 277 {
 278         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 279         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 280         return brightness;
 281 }
 282
 283 static void palmt5_backlight_exit(struct device *dev)
 284 {
 285         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 286         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 287 }
 288
 289 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 290         .pwm_id         = 0,
 291         .max_brightness = PALMT5_MAX_INTENSITY,
 292         .dft_brightness = PALMT5_MAX_INTENSITY,
 293         .pwm_period_ns  = PALMT5_PERIOD_NS,
 294         .init           = palmt5_backlight_init,
 295         .notify         = palmt5_backlight_notify,
 296         .exit           = palmt5_backlight_exit,
 297 };
 298
 299 static struct platform_device palmt5_backlight = {
 300         .name   = "pwm-backlight",
 301         .dev    = {
 302                 .parent         = &pxa27x_device_pwm0.dev,
 303                 .platform_data  = &palmt5_backlight_data,
 304         },
 305 };
 306
 307 /******************************************************************************
 308  * IrDA
 309  ******************************************************************************/
 310 static int palmt5_irda_startup(struct device *dev)
 311 {
 312         int err;
 313         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
 314         if (err)
 315                 goto err;
 316         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
 317         if (err)
 318                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 319 err:
 320         return err;
 321 }
 322
 323 static void palmt5_irda_shutdown(struct device *dev)
 324 {
 325         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 326 }
 327
 328 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
 329 {
 330         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
 331         pxa2xx_transceiver_mode(dev, mode);
 332 }
 333
 334 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 335         .startup                = palmt5_irda_startup,
 336         .shutdown               = palmt5_irda_shutdown,
 337         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 338         .transceiver_mode       = palmt5_irda_transceiver_mode,
 339 };
 340
 341 /******************************************************************************
 342  * UDC
 343  ******************************************************************************/
 344 static struct pxa2xx_udc_mach_info palmt5_udc_info __initdata = {
 345         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 346         .gpio_vbus_inverted     = 1,
 347         .gpio_pullup            = GPIO_NR_PALMT5_USB_POWER,
 348         .gpio_pullup_inverted   = 0,
 349 };
 350
 351 /******************************************************************************
 352  * Power supply
 353  ******************************************************************************/
 354 static int power_supply_init(struct device *dev)
 355 {
 356         int ret;
 357
 358         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 359         if (ret)
 360                 goto err1;
 361         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 362         if (ret)
 363                 goto err2;
 364
 365         return 0;
 366 err2:
 367         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 368 err1:
 369         return ret;
 370 }
 371
 372 static int palmt5_is_ac_online(void)
 373 {
 374         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 375 }
 376
 377 static void power_supply_exit(struct device *dev)
 378 {
 379         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 380 }
 381
 382 static char *palmt5_supplicants[] = {
 383         "main-battery",
 384 };
 385
 386 static struct pda_power_pdata power_supply_info = {
 387         .init            = power_supply_init,
 388         .is_ac_online    = palmt5_is_ac_online,
 389         .exit            = power_supply_exit,
 390         .supplied_to     = palmt5_supplicants,
 391         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 392 };
 393
 394 static struct platform_device power_supply = {
 395         .name = "pda-power",
 396         .id   = -1,
 397         .dev  = {
 398                 .platform_data = &power_supply_info,
 399         },
 400 };
 401
 402 /******************************************************************************
 403  * WM97xx battery
 404  ******************************************************************************/
 405 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 406         .batt_aux       = WM97XX_AUX_ID3,
 407         .temp_aux       = WM97XX_AUX_ID2,
 408         .charge_gpio    = -1,
 409         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 410         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 411         .batt_mult      = 1000,
 412         .batt_div       = 414,
 413         .temp_mult      = 1,
 414         .temp_div       = 1,
 415         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 416         .batt_name      = "main-batt",
 417 };
 418
 419 /******************************************************************************
 420  * aSoC audio
 421  ******************************************************************************/
 422 static struct palm27x_asoc_info palm27x_asoc_pdata = {
 423         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 424 };
 425
 426 /******************************************************************************
 427  * Framebuffer
 428  ******************************************************************************/
 429 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 430 {
 431         .pixclock       = 57692,
 432         .xres           = 320,
 433         .yres           = 480,
 434         .bpp            = 16,
 435
 436         .left_margin    = 32,
 437         .right_margin   = 1,
 438         .upper_margin   = 7,
 439         .lower_margin   = 1,
 440
 441         .hsync_len      = 4,
 442         .vsync_len      = 1,
 443 },
 444 };
 445
 446 static struct pxafb_mach_info palmt5_lcd_screen = {
 447         .modes          = palmt5_lcd_modes,
 448         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 449         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 450 };
 451
 452 /******************************************************************************
 453  * Machine init
 454  ******************************************************************************/
 455 static struct platform_device *devices[] __initdata = {
 456 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 457         &palmt5_pxa_keys,
 458 #endif
 459         &palmt5_backlight,
 460         &power_supply,
 461 };
 462
 463 /* setup udc GPIOs initial state */
 464 static void __init palmt5_udc_init(void)
 465 {
 466         if (!gpio_request(GPIO_NR_PALMT5_USB_POWER, "UDC Vbus")) {
 467                 gpio_direction_output(GPIO_NR_PALMT5_USB_POWER, 1);
 468                 gpio_free(GPIO_NR_PALMT5_USB_POWER);
 469         }
 470 }
 471
 472 static void __init palmt5_init(void)
 473 {
 474         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 475
 476         set_pxa_fb_info(&palmt5_lcd_screen);
 477         pxa_set_mci_info(&palmt5_mci_platform_data);
 478         palmt5_udc_init();
 479         pxa_set_udc_info(&palmt5_udc_info);
 480         pxa_set_ac97_info(NULL);
 481         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 482         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 483         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 484         palm27x_asoc_set_pdata(&palm27x_asoc_pdata);
 485         platform_add_devices(devices, ARRAY_SIZE(devices));
 486 }
 487
 488 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 489         .phys_io        = PALMT5_PHYS_IO_START,
 490         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 491         .boot_params    = 0xa0000100,
 492         .map_io         = pxa_map_io,
 493         .init_irq       = pxa27x_init_irq,
 494         .timer          = &pxa_timer,
 495         .init_machine   = palmt5_init
 496 MACHINE_END