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         GPIO95_AC97_nRESET,
  68
  69         /* IrDA */
  70         GPIO40_GPIO,    /* ir disable */
  71         GPIO46_FICP_RXD,
  72         GPIO47_FICP_TXD,
  73
  74         /* USB */
  75         GPIO15_GPIO,    /* usb detect */
  76         GPIO93_GPIO,    /* usb power */
  77
  78         /* MATRIX KEYPAD */
  79         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  80         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  81         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  82         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  83         GPIO103_KP_MKOUT_0,
  84         GPIO104_KP_MKOUT_1,
  85         GPIO105_KP_MKOUT_2,
  86
  87         /* LCD */
  88         GPIO58_LCD_LDD_0,
  89         GPIO59_LCD_LDD_1,
  90         GPIO60_LCD_LDD_2,
  91         GPIO61_LCD_LDD_3,
  92         GPIO62_LCD_LDD_4,
  93         GPIO63_LCD_LDD_5,
  94         GPIO64_LCD_LDD_6,
  95         GPIO65_LCD_LDD_7,
  96         GPIO66_LCD_LDD_8,
  97         GPIO67_LCD_LDD_9,
  98         GPIO68_LCD_LDD_10,
  99         GPIO69_LCD_LDD_11,
 100         GPIO70_LCD_LDD_12,
 101         GPIO71_LCD_LDD_13,
 102         GPIO72_LCD_LDD_14,
 103         GPIO73_LCD_LDD_15,
 104         GPIO74_LCD_FCLK,
 105         GPIO75_LCD_LCLK,
 106         GPIO76_LCD_PCLK,
 107         GPIO77_LCD_BIAS,
 108
 109         /* PWM */
 110         GPIO16_PWM0_OUT,
 111
 112         /* MISC */
 113         GPIO10_GPIO,    /* hotsync button */
 114         GPIO90_GPIO,    /* power detect */
 115         GPIO107_GPIO,   /* earphone detect */
 116 };
 117
 118 /******************************************************************************
 119  * SD/MMC card controller
 120  ******************************************************************************/
 121 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
 122                                 void *data)
 123 {
 124         int err = 0;
 125
 126         /* Setup an interrupt for detecting card insert/remove events */
 127         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
 128         if (err)
 129                 goto err;
 130         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
 131         if (err)
 132                 goto err2;
 133         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
 134                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 135                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 136                         "SD/MMC card detect", data);
 137         if (err) {
 138                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 139                                 __func__);
 140                 goto err2;
 141         }
 142
 143         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
 144         if (err)
 145                 goto err3;
 146         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
 147         if (err)
 148                 goto err4;
 149
 150         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
 151         if (err)
 152                 goto err4;
 153         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
 154         if (err)
 155                 goto err5;
 156
 157         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 158
 159         return 0;
 160
 161 err5:
 162         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 163 err4:
 164         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 165 err3:
 166         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
 167 err2:
 168         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 169 err:
 170         return err;
 171 }
 172
 173 static void palmt5_mci_exit(struct device *dev, void *data)
 174 {
 175         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 176         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 177         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
 178         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 179 }
 180
 181 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
 182 {
 183         struct pxamci_platform_data *p_d = dev->platform_data;
 184         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
 185 }
 186
 187 static int palmt5_mci_get_ro(struct device *dev)
 188 {
 189         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
 190 }
 191
 192 static struct pxamci_platform_data palmt5_mci_platform_data = {
 193         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 194         .setpower       = palmt5_mci_power,
 195         .get_ro         = palmt5_mci_get_ro,
 196         .init           = palmt5_mci_init,
 197         .exit           = palmt5_mci_exit,
 198 };
 199
 200 /******************************************************************************
 201  * GPIO keyboard
 202  ******************************************************************************/
 203 static unsigned int palmt5_matrix_keys[] = {
 204         KEY(0, 0, KEY_POWER),
 205         KEY(0, 1, KEY_F1),
 206         KEY(0, 2, KEY_ENTER),
 207
 208         KEY(1, 0, KEY_F2),
 209         KEY(1, 1, KEY_F3),
 210         KEY(1, 2, KEY_F4),
 211
 212         KEY(2, 0, KEY_UP),
 213         KEY(2, 2, KEY_DOWN),
 214
 215         KEY(3, 0, KEY_RIGHT),
 216         KEY(3, 2, KEY_LEFT),
 217 };
 218
 219 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 220         .matrix_key_rows        = 4,
 221         .matrix_key_cols        = 3,
 222         .matrix_key_map         = palmt5_matrix_keys,
 223         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 224
 225         .debounce_interval      = 30,
 226 };
 227
 228 /******************************************************************************
 229  * GPIO keys
 230  ******************************************************************************/
 231 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 232         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 233 };
 234
 235 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 236         .buttons        = palmt5_pxa_buttons,
 237         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 238 };
 239
 240 static struct platform_device palmt5_pxa_keys = {
 241         .name   = "gpio-keys",
 242         .id     = -1,
 243         .dev    = {
 244                 .platform_data = &palmt5_pxa_keys_data,
 245         },
 246 };
 247
 248 /******************************************************************************
 249  * Backlight
 250  ******************************************************************************/
 251 static int palmt5_backlight_init(struct device *dev)
 252 {
 253         int ret;
 254
 255         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 256         if (ret)
 257                 goto err;
 258         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 259         if (ret)
 260                 goto err2;
 261         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 262         if (ret)
 263                 goto err2;
 264         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 265         if (ret)
 266                 goto err3;
 267
 268         return 0;
 269 err3:
 270         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 271 err2:
 272         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 273 err:
 274         return ret;
 275 }
 276
 277 static int palmt5_backlight_notify(int brightness)
 278 {
 279         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 280         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 281         return brightness;
 282 }
 283
 284 static void palmt5_backlight_exit(struct device *dev)
 285 {
 286         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 287         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 288 }
 289
 290 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 291         .pwm_id         = 0,
 292         .max_brightness = PALMT5_MAX_INTENSITY,
 293         .dft_brightness = PALMT5_MAX_INTENSITY,
 294         .pwm_period_ns  = PALMT5_PERIOD_NS,
 295         .init           = palmt5_backlight_init,
 296         .notify         = palmt5_backlight_notify,
 297         .exit           = palmt5_backlight_exit,
 298 };
 299
 300 static struct platform_device palmt5_backlight = {
 301         .name   = "pwm-backlight",
 302         .dev    = {
 303                 .parent         = &pxa27x_device_pwm0.dev,
 304                 .platform_data  = &palmt5_backlight_data,
 305         },
 306 };
 307
 308 /******************************************************************************
 309  * IrDA
 310  ******************************************************************************/
 311 static int palmt5_irda_startup(struct device *dev)
 312 {
 313         int err;
 314         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
 315         if (err)
 316                 goto err;
 317         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
 318         if (err)
 319                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 320 err:
 321         return err;
 322 }
 323
 324 static void palmt5_irda_shutdown(struct device *dev)
 325 {
 326         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 327 }
 328
 329 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
 330 {
 331         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
 332         pxa2xx_transceiver_mode(dev, mode);
 333 }
 334
 335 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 336         .startup                = palmt5_irda_startup,
 337         .shutdown               = palmt5_irda_shutdown,
 338         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 339         .transceiver_mode       = palmt5_irda_transceiver_mode,
 340 };
 341
 342 /******************************************************************************
 343  * UDC
 344  ******************************************************************************/
 345 static struct pxa2xx_udc_mach_info palmt5_udc_info __initdata = {
 346         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 347         .gpio_vbus_inverted     = 1,
 348         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 349         .gpio_pullup_inverted   = 0,
 350 };
 351
 352 /******************************************************************************
 353  * Power supply
 354  ******************************************************************************/
 355 static int power_supply_init(struct device *dev)
 356 {
 357         int ret;
 358
 359         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 360         if (ret)
 361                 goto err1;
 362         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 363         if (ret)
 364                 goto err2;
 365
 366         return 0;
 367 err2:
 368         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 369 err1:
 370         return ret;
 371 }
 372
 373 static int palmt5_is_ac_online(void)
 374 {
 375         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 376 }
 377
 378 static void power_supply_exit(struct device *dev)
 379 {
 380         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 381 }
 382
 383 static char *palmt5_supplicants[] = {
 384         "main-battery",
 385 };
 386
 387 static struct pda_power_pdata power_supply_info = {
 388         .init            = power_supply_init,
 389         .is_ac_online    = palmt5_is_ac_online,
 390         .exit            = power_supply_exit,
 391         .supplied_to     = palmt5_supplicants,
 392         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 393 };
 394
 395 static struct platform_device power_supply = {
 396         .name = "pda-power",
 397         .id   = -1,
 398         .dev  = {
 399                 .platform_data = &power_supply_info,
 400         },
 401 };
 402
 403 /******************************************************************************
 404  * WM97xx battery
 405  ******************************************************************************/
 406 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 407         .batt_aux       = WM97XX_AUX_ID3,
 408         .temp_aux       = WM97XX_AUX_ID2,
 409         .charge_gpio    = -1,
 410         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 411         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 412         .batt_mult      = 1000,
 413         .batt_div       = 414,
 414         .temp_mult      = 1,
 415         .temp_div       = 1,
 416         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 417         .batt_name      = "main-batt",
 418 };
 419
 420 /******************************************************************************
 421  * aSoC audio
 422  ******************************************************************************/
 423 static struct palm27x_asoc_info palm27x_asoc_pdata = {
 424         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 425 };
 426
 427 /******************************************************************************
 428  * Framebuffer
 429  ******************************************************************************/
 430 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 431 {
 432         .pixclock       = 57692,
 433         .xres           = 320,
 434         .yres           = 480,
 435         .bpp            = 16,
 436
 437         .left_margin    = 32,
 438         .right_margin   = 1,
 439         .upper_margin   = 7,
 440         .lower_margin   = 1,
 441
 442         .hsync_len      = 4,
 443         .vsync_len      = 1,
 444 },
 445 };
 446
 447 static struct pxafb_mach_info palmt5_lcd_screen = {
 448         .modes          = palmt5_lcd_modes,
 449         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 450         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 451 };
 452
 453 /******************************************************************************
 454  * Power management - standby
 455  ******************************************************************************/
 456 #ifdef CONFIG_PM
 457 static u32 *addr __initdata;
 458 static u32 resume[3] __initdata = {
 459         0xe3a00101,     /* mov  r0,     #0x40000000 */
 460         0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 461         0xe590f008,     /* ldr  pc, [r0, #0x08] */
 462 };
 463
 464 static int __init palmt5_pm_init(void)
 465 {
 466         int i;
 467
 468         /* this is where the bootloader jumps */
 469         addr = phys_to_virt(PALMT5_STR_BASE);
 470
 471         for (i = 0; i < 3; i++)
 472                 addr[i] = resume[i];
 473
 474         return 0;
 475 }
 476
 477 device_initcall(palmt5_pm_init);
 478 #endif
 479
 480 /******************************************************************************
 481  * Machine init
 482  ******************************************************************************/
 483 static struct platform_device *devices[] __initdata = {
 484 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 485         &palmt5_pxa_keys,
 486 #endif
 487         &palmt5_backlight,
 488         &power_supply,
 489 };
 490
 491 /* setup udc GPIOs initial state */
 492 static void __init palmt5_udc_init(void)
 493 {
 494         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 495                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 496                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 497         }
 498 }
 499
 500 static void __init palmt5_init(void)
 501 {
 502         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 503
 504         set_pxa_fb_info(&palmt5_lcd_screen);
 505         pxa_set_mci_info(&palmt5_mci_platform_data);
 506         palmt5_udc_init();
 507         pxa_set_udc_info(&palmt5_udc_info);
 508         pxa_set_ac97_info(NULL);
 509         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 510         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 511         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 512         palm27x_asoc_set_pdata(&palm27x_asoc_pdata);
 513         platform_add_devices(devices, ARRAY_SIZE(devices));
 514 }
 515
 516 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 517         .phys_io        = PALMT5_PHYS_IO_START,
 518         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 519         .boot_params    = 0xa0000100,
 520         .map_io         = pxa_map_io,
 521         .init_irq       = pxa27x_init_irq,
 522         .timer          = &pxa_timer,
 523         .init_machine   = palmt5_init
 524 MACHINE_END