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         GPIO89_AC97_SYSCLK,
  68         GPIO95_AC97_nRESET,
  69
  70         /* IrDA */
  71         GPIO40_GPIO,    /* ir disable */
  72         GPIO46_FICP_RXD,
  73         GPIO47_FICP_TXD,
  74
  75         /* USB */
  76         GPIO15_GPIO,    /* usb detect */
  77         GPIO93_GPIO,    /* usb power */
  78
  79         /* MATRIX KEYPAD */
  80         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  81         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  82         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  83         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  84         GPIO103_KP_MKOUT_0,
  85         GPIO104_KP_MKOUT_1,
  86         GPIO105_KP_MKOUT_2,
  87
  88         /* LCD */
  89         GPIO58_LCD_LDD_0,
  90         GPIO59_LCD_LDD_1,
  91         GPIO60_LCD_LDD_2,
  92         GPIO61_LCD_LDD_3,
  93         GPIO62_LCD_LDD_4,
  94         GPIO63_LCD_LDD_5,
  95         GPIO64_LCD_LDD_6,
  96         GPIO65_LCD_LDD_7,
  97         GPIO66_LCD_LDD_8,
  98         GPIO67_LCD_LDD_9,
  99         GPIO68_LCD_LDD_10,
 100         GPIO69_LCD_LDD_11,
 101         GPIO70_LCD_LDD_12,
 102         GPIO71_LCD_LDD_13,
 103         GPIO72_LCD_LDD_14,
 104         GPIO73_LCD_LDD_15,
 105         GPIO74_LCD_FCLK,
 106         GPIO75_LCD_LCLK,
 107         GPIO76_LCD_PCLK,
 108         GPIO77_LCD_BIAS,
 109
 110         /* PWM */
 111         GPIO16_PWM0_OUT,
 112
 113         /* MISC */
 114         GPIO10_GPIO,    /* hotsync button */
 115         GPIO90_GPIO,    /* power detect */
 116         GPIO107_GPIO,   /* earphone detect */
 117 };
 118
 119 /******************************************************************************
 120  * SD/MMC card controller
 121  ******************************************************************************/
 122 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
 123                                 void *data)
 124 {
 125         int err = 0;
 126
 127         /* Setup an interrupt for detecting card insert/remove events */
 128         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
 129         if (err)
 130                 goto err;
 131         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
 132         if (err)
 133                 goto err2;
 134         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
 135                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 136                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 137                         "SD/MMC card detect", data);
 138         if (err) {
 139                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 140                                 __func__);
 141                 goto err2;
 142         }
 143
 144         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
 145         if (err)
 146                 goto err3;
 147         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
 148         if (err)
 149                 goto err4;
 150
 151         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
 152         if (err)
 153                 goto err4;
 154         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
 155         if (err)
 156                 goto err5;
 157
 158         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 159
 160         return 0;
 161
 162 err5:
 163         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 164 err4:
 165         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 166 err3:
 167         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
 168 err2:
 169         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 170 err:
 171         return err;
 172 }
 173
 174 static void palmt5_mci_exit(struct device *dev, void *data)
 175 {
 176         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 177         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 178         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
 179         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 180 }
 181
 182 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
 183 {
 184         struct pxamci_platform_data *p_d = dev->platform_data;
 185         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
 186 }
 187
 188 static int palmt5_mci_get_ro(struct device *dev)
 189 {
 190         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
 191 }
 192
 193 static struct pxamci_platform_data palmt5_mci_platform_data = {
 194         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 195         .setpower       = palmt5_mci_power,
 196         .get_ro         = palmt5_mci_get_ro,
 197         .init           = palmt5_mci_init,
 198         .exit           = palmt5_mci_exit,
 199 };
 200
 201 /******************************************************************************
 202  * GPIO keyboard
 203  ******************************************************************************/
 204 static unsigned int palmt5_matrix_keys[] = {
 205         KEY(0, 0, KEY_POWER),
 206         KEY(0, 1, KEY_F1),
 207         KEY(0, 2, KEY_ENTER),
 208
 209         KEY(1, 0, KEY_F2),
 210         KEY(1, 1, KEY_F3),
 211         KEY(1, 2, KEY_F4),
 212
 213         KEY(2, 0, KEY_UP),
 214         KEY(2, 2, KEY_DOWN),
 215
 216         KEY(3, 0, KEY_RIGHT),
 217         KEY(3, 2, KEY_LEFT),
 218 };
 219
 220 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 221         .matrix_key_rows        = 4,
 222         .matrix_key_cols        = 3,
 223         .matrix_key_map         = palmt5_matrix_keys,
 224         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 225
 226         .debounce_interval      = 30,
 227 };
 228
 229 /******************************************************************************
 230  * GPIO keys
 231  ******************************************************************************/
 232 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 233         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 234 };
 235
 236 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 237         .buttons        = palmt5_pxa_buttons,
 238         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 239 };
 240
 241 static struct platform_device palmt5_pxa_keys = {
 242         .name   = "gpio-keys",
 243         .id     = -1,
 244         .dev    = {
 245                 .platform_data = &palmt5_pxa_keys_data,
 246         },
 247 };
 248
 249 /******************************************************************************
 250  * Backlight
 251  ******************************************************************************/
 252 static int palmt5_backlight_init(struct device *dev)
 253 {
 254         int ret;
 255
 256         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 257         if (ret)
 258                 goto err;
 259         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 260         if (ret)
 261                 goto err2;
 262         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 263         if (ret)
 264                 goto err2;
 265         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 266         if (ret)
 267                 goto err3;
 268
 269         return 0;
 270 err3:
 271         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 272 err2:
 273         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 274 err:
 275         return ret;
 276 }
 277
 278 static int palmt5_backlight_notify(int brightness)
 279 {
 280         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 281         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 282         return brightness;
 283 }
 284
 285 static void palmt5_backlight_exit(struct device *dev)
 286 {
 287         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 288         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 289 }
 290
 291 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 292         .pwm_id         = 0,
 293         .max_brightness = PALMT5_MAX_INTENSITY,
 294         .dft_brightness = PALMT5_MAX_INTENSITY,
 295         .pwm_period_ns  = PALMT5_PERIOD_NS,
 296         .init           = palmt5_backlight_init,
 297         .notify         = palmt5_backlight_notify,
 298         .exit           = palmt5_backlight_exit,
 299 };
 300
 301 static struct platform_device palmt5_backlight = {
 302         .name   = "pwm-backlight",
 303         .dev    = {
 304                 .parent         = &pxa27x_device_pwm0.dev,
 305                 .platform_data  = &palmt5_backlight_data,
 306         },
 307 };
 308
 309 /******************************************************************************
 310  * IrDA
 311  ******************************************************************************/
 312 static int palmt5_irda_startup(struct device *dev)
 313 {
 314         int err;
 315         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
 316         if (err)
 317                 goto err;
 318         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
 319         if (err)
 320                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 321 err:
 322         return err;
 323 }
 324
 325 static void palmt5_irda_shutdown(struct device *dev)
 326 {
 327         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 328 }
 329
 330 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
 331 {
 332         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
 333         pxa2xx_transceiver_mode(dev, mode);
 334 }
 335
 336 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 337         .startup                = palmt5_irda_startup,
 338         .shutdown               = palmt5_irda_shutdown,
 339         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 340         .transceiver_mode       = palmt5_irda_transceiver_mode,
 341 };
 342
 343 /******************************************************************************
 344  * UDC
 345  ******************************************************************************/
 346 static struct pxa2xx_udc_mach_info palmt5_udc_info __initdata = {
 347         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 348         .gpio_vbus_inverted     = 1,
 349         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 350         .gpio_pullup_inverted   = 0,
 351 };
 352
 353 /******************************************************************************
 354  * Power supply
 355  ******************************************************************************/
 356 static int power_supply_init(struct device *dev)
 357 {
 358         int ret;
 359
 360         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 361         if (ret)
 362                 goto err1;
 363         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 364         if (ret)
 365                 goto err2;
 366
 367         return 0;
 368 err2:
 369         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 370 err1:
 371         return ret;
 372 }
 373
 374 static int palmt5_is_ac_online(void)
 375 {
 376         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 377 }
 378
 379 static void power_supply_exit(struct device *dev)
 380 {
 381         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 382 }
 383
 384 static char *palmt5_supplicants[] = {
 385         "main-battery",
 386 };
 387
 388 static struct pda_power_pdata power_supply_info = {
 389         .init            = power_supply_init,
 390         .is_ac_online    = palmt5_is_ac_online,
 391         .exit            = power_supply_exit,
 392         .supplied_to     = palmt5_supplicants,
 393         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 394 };
 395
 396 static struct platform_device power_supply = {
 397         .name = "pda-power",
 398         .id   = -1,
 399         .dev  = {
 400                 .platform_data = &power_supply_info,
 401         },
 402 };
 403
 404 /******************************************************************************
 405  * WM97xx battery
 406  ******************************************************************************/
 407 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 408         .batt_aux       = WM97XX_AUX_ID3,
 409         .temp_aux       = WM97XX_AUX_ID2,
 410         .charge_gpio    = -1,
 411         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 412         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 413         .batt_mult      = 1000,
 414         .batt_div       = 414,
 415         .temp_mult      = 1,
 416         .temp_div       = 1,
 417         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 418         .batt_name      = "main-batt",
 419 };
 420
 421 /******************************************************************************
 422  * aSoC audio
 423  ******************************************************************************/
 424 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 425         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 426 };
 427
 428 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 429         .reset_gpio     = 95,
 430 };
 431
 432 static struct platform_device palmt5_asoc = {
 433         .name = "palm27x-asoc",
 434         .id   = -1,
 435         .dev  = {
 436                 .platform_data = &palmt5_asoc_pdata,
 437         },
 438 };
 439
 440 /******************************************************************************
 441  * Framebuffer
 442  ******************************************************************************/
 443 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 444 {
 445         .pixclock       = 57692,
 446         .xres           = 320,
 447         .yres           = 480,
 448         .bpp            = 16,
 449
 450         .left_margin    = 32,
 451         .right_margin   = 1,
 452         .upper_margin   = 7,
 453         .lower_margin   = 1,
 454
 455         .hsync_len      = 4,
 456         .vsync_len      = 1,
 457 },
 458 };
 459
 460 static struct pxafb_mach_info palmt5_lcd_screen = {
 461         .modes          = palmt5_lcd_modes,
 462         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 463         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 464 };
 465
 466 /******************************************************************************
 467  * Power management - standby
 468  ******************************************************************************/
 469 #ifdef CONFIG_PM
 470 static u32 *addr __initdata;
 471 static u32 resume[3] __initdata = {
 472         0xe3a00101,     /* mov  r0,     #0x40000000 */
 473         0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 474         0xe590f008,     /* ldr  pc, [r0, #0x08] */
 475 };
 476
 477 static int __init palmt5_pm_init(void)
 478 {
 479         int i;
 480
 481         /* this is where the bootloader jumps */
 482         addr = phys_to_virt(PALMT5_STR_BASE);
 483
 484         for (i = 0; i < 3; i++)
 485                 addr[i] = resume[i];
 486
 487         return 0;
 488 }
 489
 490 device_initcall(palmt5_pm_init);
 491 #endif
 492
 493 /******************************************************************************
 494  * Machine init
 495  ******************************************************************************/
 496 static struct platform_device *devices[] __initdata = {
 497 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 498         &palmt5_pxa_keys,
 499 #endif
 500         &palmt5_backlight,
 501         &power_supply,
 502         &palmt5_asoc,
 503 };
 504
 505 /* setup udc GPIOs initial state */
 506 static void __init palmt5_udc_init(void)
 507 {
 508         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 509                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 510                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 511         }
 512 }
 513
 514 static void __init palmt5_init(void)
 515 {
 516         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 517
 518         set_pxa_fb_info(&palmt5_lcd_screen);
 519         pxa_set_mci_info(&palmt5_mci_platform_data);
 520         palmt5_udc_init();
 521         pxa_set_ac97_info(&palmt5_ac97_pdata);
 522         pxa_set_udc_info(&palmt5_udc_info);
 523         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 524         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 525         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 526         platform_add_devices(devices, ARRAY_SIZE(devices));
 527 }
 528
 529 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 530         .phys_io        = PALMT5_PHYS_IO_START,
 531         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 532         .boot_params    = 0xa0000100,
 533         .map_io         = pxa_map_io,
 534         .init_irq       = pxa27x_init_irq,
 535         .timer          = &pxa_timer,
 536         .init_machine   = palmt5_init
 537 MACHINE_END