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 #include <linux/usb/gpio_vbus.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <mach/pxa27x.h>
  36 #include <mach/audio.h>
  37 #include <mach/palmt5.h>
  38 #include <mach/mmc.h>
  39 #include <mach/pxafb.h>
  40 #include <mach/irda.h>
  41 #include <mach/pxa27x_keypad.h>
  42 #include <mach/udc.h>
  43 #include <mach/palmasoc.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /******************************************************************************
  49  * Pin configuration
  50  ******************************************************************************/
  51 static unsigned long palmt5_pin_config[] __initdata = {
  52         /* MMC */
  53         GPIO32_MMC_CLK,
  54         GPIO92_MMC_DAT_0,
  55         GPIO109_MMC_DAT_1,
  56         GPIO110_MMC_DAT_2,
  57         GPIO111_MMC_DAT_3,
  58         GPIO112_MMC_CMD,
  59         GPIO14_GPIO,    /* SD detect */
  60         GPIO114_GPIO,   /* SD power */
  61         GPIO115_GPIO,   /* SD r/o switch */
  62
  63         /* AC97 */
  64         GPIO28_AC97_BITCLK,
  65         GPIO29_AC97_SDATA_IN_0,
  66         GPIO30_AC97_SDATA_OUT,
  67         GPIO31_AC97_SYNC,
  68         GPIO89_AC97_SYSCLK,
  69         GPIO95_AC97_nRESET,
  70
  71         /* IrDA */
  72         GPIO40_GPIO,    /* ir disable */
  73         GPIO46_FICP_RXD,
  74         GPIO47_FICP_TXD,
  75
  76         /* USB */
  77         GPIO15_GPIO,    /* usb detect */
  78         GPIO93_GPIO,    /* usb power */
  79
  80         /* MATRIX KEYPAD */
  81         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  82         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  83         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  84         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  85         GPIO103_KP_MKOUT_0,
  86         GPIO104_KP_MKOUT_1,
  87         GPIO105_KP_MKOUT_2,
  88
  89         /* LCD */
  90         GPIO58_LCD_LDD_0,
  91         GPIO59_LCD_LDD_1,
  92         GPIO60_LCD_LDD_2,
  93         GPIO61_LCD_LDD_3,
  94         GPIO62_LCD_LDD_4,
  95         GPIO63_LCD_LDD_5,
  96         GPIO64_LCD_LDD_6,
  97         GPIO65_LCD_LDD_7,
  98         GPIO66_LCD_LDD_8,
  99         GPIO67_LCD_LDD_9,
 100         GPIO68_LCD_LDD_10,
 101         GPIO69_LCD_LDD_11,
 102         GPIO70_LCD_LDD_12,
 103         GPIO71_LCD_LDD_13,
 104         GPIO72_LCD_LDD_14,
 105         GPIO73_LCD_LDD_15,
 106         GPIO74_LCD_FCLK,
 107         GPIO75_LCD_LCLK,
 108         GPIO76_LCD_PCLK,
 109         GPIO77_LCD_BIAS,
 110
 111         /* PWM */
 112         GPIO16_PWM0_OUT,
 113
 114         /* MISC */
 115         GPIO10_GPIO,    /* hotsync button */
 116         GPIO90_GPIO,    /* power detect */
 117         GPIO107_GPIO,   /* earphone detect */
 118 };
 119
 120 /******************************************************************************
 121  * SD/MMC card controller
 122  ******************************************************************************/
 123 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
 124                                 void *data)
 125 {
 126         int err = 0;
 127
 128         /* Setup an interrupt for detecting card insert/remove events */
 129         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
 130         if (err)
 131                 goto err;
 132         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
 133         if (err)
 134                 goto err2;
 135         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
 136                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 137                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 138                         "SD/MMC card detect", data);
 139         if (err) {
 140                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 141                                 __func__);
 142                 goto err2;
 143         }
 144
 145         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
 146         if (err)
 147                 goto err3;
 148         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
 149         if (err)
 150                 goto err4;
 151
 152         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
 153         if (err)
 154                 goto err4;
 155         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
 156         if (err)
 157                 goto err5;
 158
 159         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 160
 161         return 0;
 162
 163 err5:
 164         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 165 err4:
 166         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 167 err3:
 168         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
 169 err2:
 170         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 171 err:
 172         return err;
 173 }
 174
 175 static void palmt5_mci_exit(struct device *dev, void *data)
 176 {
 177         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 178         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 179         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
 180         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 181 }
 182
 183 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
 184 {
 185         struct pxamci_platform_data *p_d = dev->platform_data;
 186         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
 187 }
 188
 189 static int palmt5_mci_get_ro(struct device *dev)
 190 {
 191         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
 192 }
 193
 194 static struct pxamci_platform_data palmt5_mci_platform_data = {
 195         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 196         .setpower       = palmt5_mci_power,
 197         .get_ro         = palmt5_mci_get_ro,
 198         .init           = palmt5_mci_init,
 199         .exit           = palmt5_mci_exit,
 200 };
 201
 202 /******************************************************************************
 203  * GPIO keyboard
 204  ******************************************************************************/
 205 static unsigned int palmt5_matrix_keys[] = {
 206         KEY(0, 0, KEY_POWER),
 207         KEY(0, 1, KEY_F1),
 208         KEY(0, 2, KEY_ENTER),
 209
 210         KEY(1, 0, KEY_F2),
 211         KEY(1, 1, KEY_F3),
 212         KEY(1, 2, KEY_F4),
 213
 214         KEY(2, 0, KEY_UP),
 215         KEY(2, 2, KEY_DOWN),
 216
 217         KEY(3, 0, KEY_RIGHT),
 218         KEY(3, 2, KEY_LEFT),
 219 };
 220
 221 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 222         .matrix_key_rows        = 4,
 223         .matrix_key_cols        = 3,
 224         .matrix_key_map         = palmt5_matrix_keys,
 225         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 226
 227         .debounce_interval      = 30,
 228 };
 229
 230 /******************************************************************************
 231  * GPIO keys
 232  ******************************************************************************/
 233 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 234         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 235 };
 236
 237 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 238         .buttons        = palmt5_pxa_buttons,
 239         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 240 };
 241
 242 static struct platform_device palmt5_pxa_keys = {
 243         .name   = "gpio-keys",
 244         .id     = -1,
 245         .dev    = {
 246                 .platform_data = &palmt5_pxa_keys_data,
 247         },
 248 };
 249
 250 /******************************************************************************
 251  * Backlight
 252  ******************************************************************************/
 253 static int palmt5_backlight_init(struct device *dev)
 254 {
 255         int ret;
 256
 257         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 258         if (ret)
 259                 goto err;
 260         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 261         if (ret)
 262                 goto err2;
 263         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 264         if (ret)
 265                 goto err2;
 266         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 267         if (ret)
 268                 goto err3;
 269
 270         return 0;
 271 err3:
 272         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 273 err2:
 274         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 275 err:
 276         return ret;
 277 }
 278
 279 static int palmt5_backlight_notify(int brightness)
 280 {
 281         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 282         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 283         return brightness;
 284 }
 285
 286 static void palmt5_backlight_exit(struct device *dev)
 287 {
 288         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 289         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 290 }
 291
 292 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 293         .pwm_id         = 0,
 294         .max_brightness = PALMT5_MAX_INTENSITY,
 295         .dft_brightness = PALMT5_MAX_INTENSITY,
 296         .pwm_period_ns  = PALMT5_PERIOD_NS,
 297         .init           = palmt5_backlight_init,
 298         .notify         = palmt5_backlight_notify,
 299         .exit           = palmt5_backlight_exit,
 300 };
 301
 302 static struct platform_device palmt5_backlight = {
 303         .name   = "pwm-backlight",
 304         .dev    = {
 305                 .parent         = &pxa27x_device_pwm0.dev,
 306                 .platform_data  = &palmt5_backlight_data,
 307         },
 308 };
 309
 310 /******************************************************************************
 311  * IrDA
 312  ******************************************************************************/
 313 static int palmt5_irda_startup(struct device *dev)
 314 {
 315         int err;
 316         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
 317         if (err)
 318                 goto err;
 319         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
 320         if (err)
 321                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 322 err:
 323         return err;
 324 }
 325
 326 static void palmt5_irda_shutdown(struct device *dev)
 327 {
 328         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 329 }
 330
 331 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
 332 {
 333         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
 334         pxa2xx_transceiver_mode(dev, mode);
 335 }
 336
 337 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 338         .startup                = palmt5_irda_startup,
 339         .shutdown               = palmt5_irda_shutdown,
 340         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 341         .transceiver_mode       = palmt5_irda_transceiver_mode,
 342 };
 343
 344 /******************************************************************************
 345  * UDC
 346  ******************************************************************************/
 347 static struct gpio_vbus_mach_info palmt5_udc_info = {
 348         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 349         .gpio_vbus_inverted     = 1,
 350         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 351 };
 352
 353 static struct platform_device palmt5_gpio_vbus = {
 354         .name   = "gpio-vbus",
 355         .id     = -1,
 356         .dev    = {
 357                 .platform_data  = &palmt5_udc_info,
 358         },
 359 };
 360
 361 /******************************************************************************
 362  * Power supply
 363  ******************************************************************************/
 364 static int power_supply_init(struct device *dev)
 365 {
 366         int ret;
 367
 368         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 369         if (ret)
 370                 goto err1;
 371         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 372         if (ret)
 373                 goto err2;
 374
 375         return 0;
 376 err2:
 377         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 378 err1:
 379         return ret;
 380 }
 381
 382 static int palmt5_is_ac_online(void)
 383 {
 384         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 385 }
 386
 387 static void power_supply_exit(struct device *dev)
 388 {
 389         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 390 }
 391
 392 static char *palmt5_supplicants[] = {
 393         "main-battery",
 394 };
 395
 396 static struct pda_power_pdata power_supply_info = {
 397         .init            = power_supply_init,
 398         .is_ac_online    = palmt5_is_ac_online,
 399         .exit            = power_supply_exit,
 400         .supplied_to     = palmt5_supplicants,
 401         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 402 };
 403
 404 static struct platform_device power_supply = {
 405         .name = "pda-power",
 406         .id   = -1,
 407         .dev  = {
 408                 .platform_data = &power_supply_info,
 409         },
 410 };
 411
 412 /******************************************************************************
 413  * WM97xx battery
 414  ******************************************************************************/
 415 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 416         .batt_aux       = WM97XX_AUX_ID3,
 417         .temp_aux       = WM97XX_AUX_ID2,
 418         .charge_gpio    = -1,
 419         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 420         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 421         .batt_mult      = 1000,
 422         .batt_div       = 414,
 423         .temp_mult      = 1,
 424         .temp_div       = 1,
 425         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 426         .batt_name      = "main-batt",
 427 };
 428
 429 /******************************************************************************
 430  * aSoC audio
 431  ******************************************************************************/
 432 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 433         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 434 };
 435
 436 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 437         .reset_gpio     = 95,
 438 };
 439
 440 static struct platform_device palmt5_asoc = {
 441         .name = "palm27x-asoc",
 442         .id   = -1,
 443         .dev  = {
 444                 .platform_data = &palmt5_asoc_pdata,
 445         },
 446 };
 447
 448 /******************************************************************************
 449  * Framebuffer
 450  ******************************************************************************/
 451 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 452 {
 453         .pixclock       = 57692,
 454         .xres           = 320,
 455         .yres           = 480,
 456         .bpp            = 16,
 457
 458         .left_margin    = 32,
 459         .right_margin   = 1,
 460         .upper_margin   = 7,
 461         .lower_margin   = 1,
 462
 463         .hsync_len      = 4,
 464         .vsync_len      = 1,
 465 },
 466 };
 467
 468 static struct pxafb_mach_info palmt5_lcd_screen = {
 469         .modes          = palmt5_lcd_modes,
 470         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 471         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 472 };
 473
 474 /******************************************************************************
 475  * Power management - standby
 476  ******************************************************************************/
 477 static void __init palmt5_pm_init(void)
 478 {
 479         static u32 resume[] = {
 480                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 481                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 482                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 483         };
 484
 485         /* copy the bootloader */
 486         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 487 }
 488
 489 /******************************************************************************
 490  * Machine init
 491  ******************************************************************************/
 492 static struct platform_device *devices[] __initdata = {
 493 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 494         &palmt5_pxa_keys,
 495 #endif
 496         &palmt5_backlight,
 497         &power_supply,
 498         &palmt5_asoc,
 499         &palmt5_gpio_vbus,
 500 };
 501
 502 /* setup udc GPIOs initial state */
 503 static void __init palmt5_udc_init(void)
 504 {
 505         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 506                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 507                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 508         }
 509 }
 510
 511 static void __init palmt5_init(void)
 512 {
 513         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 514
 515         palmt5_pm_init();
 516         set_pxa_fb_info(&palmt5_lcd_screen);
 517         pxa_set_mci_info(&palmt5_mci_platform_data);
 518         palmt5_udc_init();
 519         pxa_set_ac97_info(&palmt5_ac97_pdata);
 520         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 521         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 522         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 523
 524         platform_add_devices(devices, ARRAY_SIZE(devices));
 525 }
 526
 527 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 528         .phys_io        = PALMT5_PHYS_IO_START,
 529         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 530         .boot_params    = 0xa0000100,
 531         .map_io         = pxa_map_io,
 532         .init_irq       = pxa27x_init_irq,
 533         .timer          = &pxa_timer,
 534         .init_machine   = palmt5_init
 535 MACHINE_END