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         /* FFUART */
 115         GPIO34_FFUART_RXD,
 116         GPIO39_FFUART_TXD,
 117
 118         /* MISC */
 119         GPIO10_GPIO,    /* hotsync button */
 120         GPIO90_GPIO,    /* power detect */
 121         GPIO107_GPIO,   /* earphone detect */
 122 };
 123
 124 /******************************************************************************
 125  * SD/MMC card controller
 126  ******************************************************************************/
 127 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
 128                                 void *data)
 129 {
 130         int err = 0;
 131
 132         /* Setup an interrupt for detecting card insert/remove events */
 133         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
 134         if (err)
 135                 goto err;
 136         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
 137         if (err)
 138                 goto err2;
 139         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
 140                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 141                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 142                         "SD/MMC card detect", data);
 143         if (err) {
 144                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 145                                 __func__);
 146                 goto err2;
 147         }
 148
 149         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
 150         if (err)
 151                 goto err3;
 152         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
 153         if (err)
 154                 goto err4;
 155
 156         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
 157         if (err)
 158                 goto err4;
 159         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
 160         if (err)
 161                 goto err5;
 162
 163         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 164
 165         return 0;
 166
 167 err5:
 168         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 169 err4:
 170         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 171 err3:
 172         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
 173 err2:
 174         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 175 err:
 176         return err;
 177 }
 178
 179 static void palmt5_mci_exit(struct device *dev, void *data)
 180 {
 181         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
 182         gpio_free(GPIO_NR_PALMT5_SD_POWER);
 183         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
 184         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
 185 }
 186
 187 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
 188 {
 189         struct pxamci_platform_data *p_d = dev->platform_data;
 190         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
 191 }
 192
 193 static int palmt5_mci_get_ro(struct device *dev)
 194 {
 195         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
 196 }
 197
 198 static struct pxamci_platform_data palmt5_mci_platform_data = {
 199         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 200         .setpower       = palmt5_mci_power,
 201         .get_ro         = palmt5_mci_get_ro,
 202         .init           = palmt5_mci_init,
 203         .exit           = palmt5_mci_exit,
 204 };
 205
 206 /******************************************************************************
 207  * GPIO keyboard
 208  ******************************************************************************/
 209 static unsigned int palmt5_matrix_keys[] = {
 210         KEY(0, 0, KEY_POWER),
 211         KEY(0, 1, KEY_F1),
 212         KEY(0, 2, KEY_ENTER),
 213
 214         KEY(1, 0, KEY_F2),
 215         KEY(1, 1, KEY_F3),
 216         KEY(1, 2, KEY_F4),
 217
 218         KEY(2, 0, KEY_UP),
 219         KEY(2, 2, KEY_DOWN),
 220
 221         KEY(3, 0, KEY_RIGHT),
 222         KEY(3, 2, KEY_LEFT),
 223 };
 224
 225 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 226         .matrix_key_rows        = 4,
 227         .matrix_key_cols        = 3,
 228         .matrix_key_map         = palmt5_matrix_keys,
 229         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 230
 231         .debounce_interval      = 30,
 232 };
 233
 234 /******************************************************************************
 235  * GPIO keys
 236  ******************************************************************************/
 237 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 238         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 239 };
 240
 241 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 242         .buttons        = palmt5_pxa_buttons,
 243         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 244 };
 245
 246 static struct platform_device palmt5_pxa_keys = {
 247         .name   = "gpio-keys",
 248         .id     = -1,
 249         .dev    = {
 250                 .platform_data = &palmt5_pxa_keys_data,
 251         },
 252 };
 253
 254 /******************************************************************************
 255  * Backlight
 256  ******************************************************************************/
 257 static int palmt5_backlight_init(struct device *dev)
 258 {
 259         int ret;
 260
 261         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 262         if (ret)
 263                 goto err;
 264         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 265         if (ret)
 266                 goto err2;
 267         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 268         if (ret)
 269                 goto err2;
 270         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 271         if (ret)
 272                 goto err3;
 273
 274         return 0;
 275 err3:
 276         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 277 err2:
 278         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 279 err:
 280         return ret;
 281 }
 282
 283 static int palmt5_backlight_notify(int brightness)
 284 {
 285         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 286         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 287         return brightness;
 288 }
 289
 290 static void palmt5_backlight_exit(struct device *dev)
 291 {
 292         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 293         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 294 }
 295
 296 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 297         .pwm_id         = 0,
 298         .max_brightness = PALMT5_MAX_INTENSITY,
 299         .dft_brightness = PALMT5_MAX_INTENSITY,
 300         .pwm_period_ns  = PALMT5_PERIOD_NS,
 301         .init           = palmt5_backlight_init,
 302         .notify         = palmt5_backlight_notify,
 303         .exit           = palmt5_backlight_exit,
 304 };
 305
 306 static struct platform_device palmt5_backlight = {
 307         .name   = "pwm-backlight",
 308         .dev    = {
 309                 .parent         = &pxa27x_device_pwm0.dev,
 310                 .platform_data  = &palmt5_backlight_data,
 311         },
 312 };
 313
 314 /******************************************************************************
 315  * IrDA
 316  ******************************************************************************/
 317 static int palmt5_irda_startup(struct device *dev)
 318 {
 319         int err;
 320         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
 321         if (err)
 322                 goto err;
 323         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
 324         if (err)
 325                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 326 err:
 327         return err;
 328 }
 329
 330 static void palmt5_irda_shutdown(struct device *dev)
 331 {
 332         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
 333 }
 334
 335 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
 336 {
 337         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
 338         pxa2xx_transceiver_mode(dev, mode);
 339 }
 340
 341 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 342         .startup                = palmt5_irda_startup,
 343         .shutdown               = palmt5_irda_shutdown,
 344         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 345         .transceiver_mode       = palmt5_irda_transceiver_mode,
 346 };
 347
 348 /******************************************************************************
 349  * UDC
 350  ******************************************************************************/
 351 static struct gpio_vbus_mach_info palmt5_udc_info = {
 352         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 353         .gpio_vbus_inverted     = 1,
 354         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 355 };
 356
 357 static struct platform_device palmt5_gpio_vbus = {
 358         .name   = "gpio-vbus",
 359         .id     = -1,
 360         .dev    = {
 361                 .platform_data  = &palmt5_udc_info,
 362         },
 363 };
 364
 365 /******************************************************************************
 366  * Power supply
 367  ******************************************************************************/
 368 static int power_supply_init(struct device *dev)
 369 {
 370         int ret;
 371
 372         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 373         if (ret)
 374                 goto err1;
 375         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 376         if (ret)
 377                 goto err2;
 378
 379         return 0;
 380 err2:
 381         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 382 err1:
 383         return ret;
 384 }
 385
 386 static int palmt5_is_ac_online(void)
 387 {
 388         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 389 }
 390
 391 static void power_supply_exit(struct device *dev)
 392 {
 393         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 394 }
 395
 396 static char *palmt5_supplicants[] = {
 397         "main-battery",
 398 };
 399
 400 static struct pda_power_pdata power_supply_info = {
 401         .init            = power_supply_init,
 402         .is_ac_online    = palmt5_is_ac_online,
 403         .exit            = power_supply_exit,
 404         .supplied_to     = palmt5_supplicants,
 405         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 406 };
 407
 408 static struct platform_device power_supply = {
 409         .name = "pda-power",
 410         .id   = -1,
 411         .dev  = {
 412                 .platform_data = &power_supply_info,
 413         },
 414 };
 415
 416 /******************************************************************************
 417  * WM97xx battery
 418  ******************************************************************************/
 419 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 420         .batt_aux       = WM97XX_AUX_ID3,
 421         .temp_aux       = WM97XX_AUX_ID2,
 422         .charge_gpio    = -1,
 423         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 424         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 425         .batt_mult      = 1000,
 426         .batt_div       = 414,
 427         .temp_mult      = 1,
 428         .temp_div       = 1,
 429         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 430         .batt_name      = "main-batt",
 431 };
 432
 433 /******************************************************************************
 434  * aSoC audio
 435  ******************************************************************************/
 436 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 437         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 438 };
 439
 440 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 441         .reset_gpio     = 95,
 442 };
 443
 444 static struct platform_device palmt5_asoc = {
 445         .name = "palm27x-asoc",
 446         .id   = -1,
 447         .dev  = {
 448                 .platform_data = &palmt5_asoc_pdata,
 449         },
 450 };
 451
 452 /******************************************************************************
 453  * Framebuffer
 454  ******************************************************************************/
 455 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 456 {
 457         .pixclock       = 57692,
 458         .xres           = 320,
 459         .yres           = 480,
 460         .bpp            = 16,
 461
 462         .left_margin    = 32,
 463         .right_margin   = 1,
 464         .upper_margin   = 7,
 465         .lower_margin   = 1,
 466
 467         .hsync_len      = 4,
 468         .vsync_len      = 1,
 469 },
 470 };
 471
 472 static struct pxafb_mach_info palmt5_lcd_screen = {
 473         .modes          = palmt5_lcd_modes,
 474         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 475         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 476 };
 477
 478 /******************************************************************************
 479  * Power management - standby
 480  ******************************************************************************/
 481 static void __init palmt5_pm_init(void)
 482 {
 483         static u32 resume[] = {
 484                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 485                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 486                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 487         };
 488
 489         /* copy the bootloader */
 490         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 491 }
 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         &palmt5_gpio_vbus,
 504 };
 505
 506 /* setup udc GPIOs initial state */
 507 static void __init palmt5_udc_init(void)
 508 {
 509         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 510                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 511                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 512         }
 513 }
 514
 515 static void __init palmt5_init(void)
 516 {
 517         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 518
 519         palmt5_pm_init();
 520         set_pxa_fb_info(&palmt5_lcd_screen);
 521         pxa_set_mci_info(&palmt5_mci_platform_data);
 522         palmt5_udc_init();
 523         pxa_set_ac97_info(&palmt5_ac97_pdata);
 524         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 525         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 526         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 527
 528         platform_add_devices(devices, ARRAY_SIZE(devices));
 529 }
 530
 531 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 532         .phys_io        = PALMT5_PHYS_IO_START,
 533         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 534         .boot_params    = 0xa0000100,
 535         .map_io         = pxa_map_io,
 536         .init_irq       = pxa27x_init_irq,
 537         .timer          = &pxa_timer,
 538         .init_machine   = palmt5_init
 539 MACHINE_END