arch/arm/mach-pxa/palmtx.c

   1 /*
   2  * Hardware definitions for PalmTX
   3  *
   4  * Author:     Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Alex Osborne <ato@meshy.org>
   8  *              Cristiano P. <cristianop@users.sourceforge.net>
   9  *              Jan Herman <2hp@seznam.cz>
  10  *              Michal Hrusecky
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  *
  16  * (find more info at www.hackndev.com)
  17  *
  18  */
  19
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/irq.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/pda_power.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/gpio.h>
  28 #include <linux/wm97xx_batt.h>
  29 #include <linux/power_supply.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/palmtx.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
  44 #include "generic.h"
  45 #include "devices.h"
  46
  47 /******************************************************************************
  48  * Pin configuration
  49  ******************************************************************************/
  50 static unsigned long palmtx_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         /* PWM */
  75         GPIO16_PWM0_OUT,
  76
  77         /* USB */
  78         GPIO13_GPIO,    /* usb detect */
  79         GPIO93_GPIO,    /* usb power */
  80
  81         /* PCMCIA */
  82         GPIO48_nPOE,
  83         GPIO49_nPWE,
  84         GPIO50_nPIOR,
  85         GPIO51_nPIOW,
  86         GPIO85_nPCE_1,
  87         GPIO54_nPCE_2,
  88         GPIO79_PSKTSEL,
  89         GPIO55_nPREG,
  90         GPIO56_nPWAIT,
  91         GPIO57_nIOIS16,
  92         GPIO94_GPIO,    /* wifi power 1 */
  93         GPIO108_GPIO,   /* wifi power 2 */
  94         GPIO116_GPIO,   /* wifi ready */
  95
  96         /* MATRIX KEYPAD */
  97         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  98         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  99         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
 100         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
 101         GPIO103_KP_MKOUT_0,
 102         GPIO104_KP_MKOUT_1,
 103         GPIO105_KP_MKOUT_2,
 104
 105         /* LCD */
 106         GPIO58_LCD_LDD_0,
 107         GPIO59_LCD_LDD_1,
 108         GPIO60_LCD_LDD_2,
 109         GPIO61_LCD_LDD_3,
 110         GPIO62_LCD_LDD_4,
 111         GPIO63_LCD_LDD_5,
 112         GPIO64_LCD_LDD_6,
 113         GPIO65_LCD_LDD_7,
 114         GPIO66_LCD_LDD_8,
 115         GPIO67_LCD_LDD_9,
 116         GPIO68_LCD_LDD_10,
 117         GPIO69_LCD_LDD_11,
 118         GPIO70_LCD_LDD_12,
 119         GPIO71_LCD_LDD_13,
 120         GPIO72_LCD_LDD_14,
 121         GPIO73_LCD_LDD_15,
 122         GPIO74_LCD_FCLK,
 123         GPIO75_LCD_LCLK,
 124         GPIO76_LCD_PCLK,
 125         GPIO77_LCD_BIAS,
 126
 127         /* MISC. */
 128         GPIO10_GPIO,    /* hotsync button */
 129         GPIO12_GPIO,    /* power detect */
 130         GPIO107_GPIO,   /* earphone detect */
 131 };
 132
 133 /******************************************************************************
 134  * SD/MMC card controller
 135  ******************************************************************************/
 136 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
 137                                 void *data)
 138 {
 139         int err = 0;
 140
 141         /* Setup an interrupt for detecting card insert/remove events */
 142         err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ");
 143         if (err)
 144                 goto err;
 145         err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
 146         if (err)
 147                 goto err2;
 148         err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
 149                         palmtx_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 150                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 151                         "SD/MMC card detect", data);
 152         if (err) {
 153                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 154                                 __func__);
 155                 goto err2;
 156         }
 157
 158         err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
 159         if (err)
 160                 goto err3;
 161         err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
 162         if (err)
 163                 goto err4;
 164
 165         err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
 166         if (err)
 167                 goto err4;
 168         err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY);
 169         if (err)
 170                 goto err5;
 171
 172         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 173
 174         return 0;
 175
 176 err5:
 177         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 178 err4:
 179         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 180 err3:
 181         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 182 err2:
 183         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 184 err:
 185         return err;
 186 }
 187
 188 static void palmtx_mci_exit(struct device *dev, void *data)
 189 {
 190         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 191         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 192         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 193         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 194 }
 195
 196 static void palmtx_mci_power(struct device *dev, unsigned int vdd)
 197 {
 198         struct pxamci_platform_data *p_d = dev->platform_data;
 199         gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
 200 }
 201
 202 static int palmtx_mci_get_ro(struct device *dev)
 203 {
 204         return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
 205 }
 206
 207 static struct pxamci_platform_data palmtx_mci_platform_data = {
 208         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 209         .setpower       = palmtx_mci_power,
 210         .get_ro         = palmtx_mci_get_ro,
 211         .init           = palmtx_mci_init,
 212         .exit           = palmtx_mci_exit,
 213 };
 214
 215 /******************************************************************************
 216  * GPIO keyboard
 217  ******************************************************************************/
 218 static unsigned int palmtx_matrix_keys[] = {
 219         KEY(0, 0, KEY_POWER),
 220         KEY(0, 1, KEY_F1),
 221         KEY(0, 2, KEY_ENTER),
 222
 223         KEY(1, 0, KEY_F2),
 224         KEY(1, 1, KEY_F3),
 225         KEY(1, 2, KEY_F4),
 226
 227         KEY(2, 0, KEY_UP),
 228         KEY(2, 2, KEY_DOWN),
 229
 230         KEY(3, 0, KEY_RIGHT),
 231         KEY(3, 2, KEY_LEFT),
 232 };
 233
 234 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 235         .matrix_key_rows        = 4,
 236         .matrix_key_cols        = 3,
 237         .matrix_key_map         = palmtx_matrix_keys,
 238         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 239
 240         .debounce_interval      = 30,
 241 };
 242
 243 /******************************************************************************
 244  * GPIO keys
 245  ******************************************************************************/
 246 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 247         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 248 };
 249
 250 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 251         .buttons        = palmtx_pxa_buttons,
 252         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 253 };
 254
 255 static struct platform_device palmtx_pxa_keys = {
 256         .name   = "gpio-keys",
 257         .id     = -1,
 258         .dev    = {
 259                 .platform_data = &palmtx_pxa_keys_data,
 260         },
 261 };
 262
 263 /******************************************************************************
 264  * Backlight
 265  ******************************************************************************/
 266 static int palmtx_backlight_init(struct device *dev)
 267 {
 268         int ret;
 269
 270         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 271         if (ret)
 272                 goto err;
 273         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 274         if (ret)
 275                 goto err2;
 276         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 277         if (ret)
 278                 goto err2;
 279         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 280         if (ret)
 281                 goto err3;
 282
 283         return 0;
 284 err3:
 285         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 286 err2:
 287         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 288 err:
 289         return ret;
 290 }
 291
 292 static int palmtx_backlight_notify(int brightness)
 293 {
 294         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 295         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 296         return brightness;
 297 }
 298
 299 static void palmtx_backlight_exit(struct device *dev)
 300 {
 301         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 302         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 303 }
 304
 305 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 306         .pwm_id         = 0,
 307         .max_brightness = PALMTX_MAX_INTENSITY,
 308         .dft_brightness = PALMTX_MAX_INTENSITY,
 309         .pwm_period_ns  = PALMTX_PERIOD_NS,
 310         .init           = palmtx_backlight_init,
 311         .notify         = palmtx_backlight_notify,
 312         .exit           = palmtx_backlight_exit,
 313 };
 314
 315 static struct platform_device palmtx_backlight = {
 316         .name   = "pwm-backlight",
 317         .dev    = {
 318                 .parent         = &pxa27x_device_pwm0.dev,
 319                 .platform_data  = &palmtx_backlight_data,
 320         },
 321 };
 322
 323 /******************************************************************************
 324  * IrDA
 325  ******************************************************************************/
 326 static int palmtx_irda_startup(struct device *dev)
 327 {
 328         int err;
 329         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 330         if (err)
 331                 goto err;
 332         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 333         if (err)
 334                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 335 err:
 336         return err;
 337 }
 338
 339 static void palmtx_irda_shutdown(struct device *dev)
 340 {
 341         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 342 }
 343
 344 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 345 {
 346         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 347         pxa2xx_transceiver_mode(dev, mode);
 348 }
 349
 350 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 351         .startup                = palmtx_irda_startup,
 352         .shutdown               = palmtx_irda_shutdown,
 353         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 354         .transceiver_mode       = palmtx_irda_transceiver_mode,
 355 };
 356
 357 /******************************************************************************
 358  * UDC
 359  ******************************************************************************/
 360 static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
 361         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 362         .gpio_vbus_inverted     = 1,
 363         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 364         .gpio_pullup_inverted   = 0,
 365 };
 366
 367 /******************************************************************************
 368  * Power supply
 369  ******************************************************************************/
 370 static int power_supply_init(struct device *dev)
 371 {
 372         int ret;
 373
 374         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 375         if (ret)
 376                 goto err1;
 377         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 378         if (ret)
 379                 goto err2;
 380
 381         return 0;
 382
 383 err2:
 384         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 385 err1:
 386         return ret;
 387 }
 388
 389 static int palmtx_is_ac_online(void)
 390 {
 391         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 392 }
 393
 394 static void power_supply_exit(struct device *dev)
 395 {
 396         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 397 }
 398
 399 static char *palmtx_supplicants[] = {
 400         "main-battery",
 401 };
 402
 403 static struct pda_power_pdata power_supply_info = {
 404         .init            = power_supply_init,
 405         .is_ac_online    = palmtx_is_ac_online,
 406         .exit            = power_supply_exit,
 407         .supplied_to     = palmtx_supplicants,
 408         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 409 };
 410
 411 static struct platform_device power_supply = {
 412         .name = "pda-power",
 413         .id   = -1,
 414         .dev  = {
 415                 .platform_data = &power_supply_info,
 416         },
 417 };
 418
 419 /******************************************************************************
 420  * WM97xx battery
 421  ******************************************************************************/
 422 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 423         .batt_aux       = WM97XX_AUX_ID3,
 424         .temp_aux       = WM97XX_AUX_ID2,
 425         .charge_gpio    = -1,
 426         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 427         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 428         .batt_mult      = 1000,
 429         .batt_div       = 414,
 430         .temp_mult      = 1,
 431         .temp_div       = 1,
 432         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 433         .batt_name      = "main-batt",
 434 };
 435
 436 /******************************************************************************
 437  * Framebuffer
 438  ******************************************************************************/
 439 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 440 {
 441         .pixclock       = 57692,
 442         .xres           = 320,
 443         .yres           = 480,
 444         .bpp            = 16,
 445
 446         .left_margin    = 32,
 447         .right_margin   = 1,
 448         .upper_margin   = 7,
 449         .lower_margin   = 1,
 450
 451         .hsync_len      = 4,
 452         .vsync_len      = 1,
 453 },
 454 };
 455
 456 static struct pxafb_mach_info palmtx_lcd_screen = {
 457         .modes          = palmtx_lcd_modes,
 458         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 459         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 460 };
 461
 462 /******************************************************************************
 463  * Power management - standby
 464  ******************************************************************************/
 465 #ifdef CONFIG_PM
 466 static u32 *addr __initdata;
 467 static u32 resume[3] __initdata = {
 468         0xe3a00101,     /* mov  r0,     #0x40000000 */
 469         0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 470         0xe590f008,     /* ldr  pc, [r0, #0x08] */
 471 };
 472
 473 static int __init palmtx_pm_init(void)
 474 {
 475         int i;
 476
 477         /* this is where the bootloader jumps */
 478         addr = phys_to_virt(PALMTX_STR_BASE);
 479
 480         for (i = 0; i < 3; i++)
 481                 addr[i] = resume[i];
 482
 483         return 0;
 484 }
 485
 486 device_initcall(palmtx_pm_init);
 487 #endif
 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         &palmtx_pxa_keys,
 495 #endif
 496         &palmtx_backlight,
 497         &power_supply,
 498 };
 499
 500 static struct map_desc palmtx_io_desc[] __initdata = {
 501 {
 502         .virtual        = PALMTX_PCMCIA_VIRT,
 503         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 504         .length         = PALMTX_PCMCIA_SIZE,
 505         .type           = MT_DEVICE
 506 },
 507 };
 508
 509 static void __init palmtx_map_io(void)
 510 {
 511         pxa_map_io();
 512         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 513 }
 514
 515 /* setup udc GPIOs initial state */
 516 static void __init palmtx_udc_init(void)
 517 {
 518         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 519                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 520                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 521         }
 522 }
 523
 524
 525 static void __init palmtx_init(void)
 526 {
 527         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 528
 529         set_pxa_fb_info(&palmtx_lcd_screen);
 530         pxa_set_mci_info(&palmtx_mci_platform_data);
 531         palmtx_udc_init();
 532         pxa_set_udc_info(&palmtx_udc_info);
 533         pxa_set_ac97_info(NULL);
 534         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 535         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 536         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 537
 538         platform_add_devices(devices, ARRAY_SIZE(devices));
 539 }
 540
 541 MACHINE_START(PALMTX, "Palm T|X")
 542         .phys_io        = PALMTX_PHYS_IO_START,
 543         .io_pg_offst    = io_p2v(0x40000000),
 544         .boot_params    = 0xa0000100,
 545         .map_io         = palmtx_map_io,
 546         .init_irq       = pxa27x_init_irq,
 547         .timer          = &pxa_timer,
 548         .init_machine   = palmtx_init
 549 MACHINE_END