arch/arm/mach-pxa/palmld.c

   1 /*
   2  * Hardware definitions for Palm LifeDrive
   3  *
   4  * Author:     Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Alex Osborne <ato@meshy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * (find more info at www.hackndev.com)
  14  *
  15  */
  16
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/irq.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input.h>
  22 #include <linux/pda_power.h>
  23 #include <linux/pwm_backlight.h>
  24 #include <linux/gpio.h>
  25 #include <linux/wm97xx_batt.h>
  26 #include <linux/power_supply.h>
  27 #include <linux/sysdev.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <mach/pxa27x.h>
  34 #include <mach/audio.h>
  35 #include <mach/palmld.h>
  36 #include <mach/mmc.h>
  37 #include <mach/pxafb.h>
  38 #include <mach/irda.h>
  39 #include <mach/pxa27x_keypad.h>
  40 #include <mach/palmasoc.h>
  41
  42 #include "generic.h"
  43 #include "devices.h"
  44
  45 /******************************************************************************
  46  * Pin configuration
  47  ******************************************************************************/
  48 static unsigned long palmld_pin_config[] __initdata = {
  49         /* MMC */
  50         GPIO32_MMC_CLK,
  51         GPIO92_MMC_DAT_0,
  52         GPIO109_MMC_DAT_1,
  53         GPIO110_MMC_DAT_2,
  54         GPIO111_MMC_DAT_3,
  55         GPIO112_MMC_CMD,
  56         GPIO14_GPIO,    /* SD detect */
  57         GPIO114_GPIO,   /* SD power */
  58         GPIO116_GPIO,   /* SD r/o switch */
  59
  60         /* AC97 */
  61         GPIO28_AC97_BITCLK,
  62         GPIO29_AC97_SDATA_IN_0,
  63         GPIO30_AC97_SDATA_OUT,
  64         GPIO31_AC97_SYNC,
  65         GPIO89_AC97_SYSCLK,
  66         GPIO95_AC97_nRESET,
  67
  68         /* IrDA */
  69         GPIO108_GPIO,   /* ir disable */
  70         GPIO46_FICP_RXD,
  71         GPIO47_FICP_TXD,
  72
  73         /* MATRIX KEYPAD */
  74         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  75         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  76         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  77         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  78         GPIO103_KP_MKOUT_0,
  79         GPIO104_KP_MKOUT_1,
  80         GPIO105_KP_MKOUT_2,
  81
  82         /* LCD */
  83         GPIO58_LCD_LDD_0,
  84         GPIO59_LCD_LDD_1,
  85         GPIO60_LCD_LDD_2,
  86         GPIO61_LCD_LDD_3,
  87         GPIO62_LCD_LDD_4,
  88         GPIO63_LCD_LDD_5,
  89         GPIO64_LCD_LDD_6,
  90         GPIO65_LCD_LDD_7,
  91         GPIO66_LCD_LDD_8,
  92         GPIO67_LCD_LDD_9,
  93         GPIO68_LCD_LDD_10,
  94         GPIO69_LCD_LDD_11,
  95         GPIO70_LCD_LDD_12,
  96         GPIO71_LCD_LDD_13,
  97         GPIO72_LCD_LDD_14,
  98         GPIO73_LCD_LDD_15,
  99         GPIO74_LCD_FCLK,
 100         GPIO75_LCD_LCLK,
 101         GPIO76_LCD_PCLK,
 102         GPIO77_LCD_BIAS,
 103
 104         /* PWM */
 105         GPIO16_PWM0_OUT,
 106
 107         /* GPIO KEYS */
 108         GPIO10_GPIO,    /* hotsync button */
 109         GPIO12_GPIO,    /* power switch */
 110         GPIO15_GPIO,    /* lock switch */
 111
 112         /* LEDs */
 113         GPIO52_GPIO,    /* green led */
 114         GPIO94_GPIO,    /* orange led */
 115
 116         /* PCMCIA */
 117         GPIO48_nPOE,
 118         GPIO49_nPWE,
 119         GPIO50_nPIOR,
 120         GPIO51_nPIOW,
 121         GPIO85_nPCE_1,
 122         GPIO54_nPCE_2,
 123         GPIO79_PSKTSEL,
 124         GPIO55_nPREG,
 125         GPIO56_nPWAIT,
 126         GPIO57_nIOIS16,
 127         GPIO36_GPIO,    /* wifi power */
 128         GPIO38_GPIO,    /* wifi ready */
 129         GPIO81_GPIO,    /* wifi reset */
 130
 131         /* FFUART */
 132         GPIO34_FFUART_RXD,
 133         GPIO39_FFUART_TXD,
 134
 135         /* HDD */
 136         GPIO98_GPIO,    /* HDD reset */
 137         GPIO115_GPIO,   /* HDD power */
 138
 139         /* MISC */
 140         GPIO13_GPIO,    /* earphone detect */
 141 };
 142
 143 /******************************************************************************
 144  * SD/MMC card controller
 145  ******************************************************************************/
 146 static int palmld_mci_init(struct device *dev, irq_handler_t palmld_detect_int,
 147                                 void *data)
 148 {
 149         int err = 0;
 150
 151         /* Setup an interrupt for detecting card insert/remove events */
 152         err = gpio_request(GPIO_NR_PALMLD_SD_DETECT_N, "SD IRQ");
 153         if (err)
 154                 goto err;
 155         err = gpio_direction_input(GPIO_NR_PALMLD_SD_DETECT_N);
 156         if (err)
 157                 goto err2;
 158         err = request_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N),
 159                         palmld_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 160                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 161                         "SD/MMC card detect", data);
 162         if (err) {
 163                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 164                                 __func__);
 165                 goto err2;
 166         }
 167
 168         err = gpio_request(GPIO_NR_PALMLD_SD_POWER, "SD_POWER");
 169         if (err)
 170                 goto err3;
 171         err = gpio_direction_output(GPIO_NR_PALMLD_SD_POWER, 0);
 172         if (err)
 173                 goto err4;
 174
 175         err = gpio_request(GPIO_NR_PALMLD_SD_READONLY, "SD_READONLY");
 176         if (err)
 177                 goto err4;
 178         err = gpio_direction_input(GPIO_NR_PALMLD_SD_READONLY);
 179         if (err)
 180                 goto err5;
 181
 182         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 183
 184         return 0;
 185
 186 err5:
 187         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 188 err4:
 189         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 190 err3:
 191         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 192 err2:
 193         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 194 err:
 195         return err;
 196 }
 197
 198 static void palmld_mci_exit(struct device *dev, void *data)
 199 {
 200         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 201         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 202         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 203         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 204 }
 205
 206 static void palmld_mci_power(struct device *dev, unsigned int vdd)
 207 {
 208         struct pxamci_platform_data *p_d = dev->platform_data;
 209         gpio_set_value(GPIO_NR_PALMLD_SD_POWER, p_d->ocr_mask & (1 << vdd));
 210 }
 211
 212 static int palmld_mci_get_ro(struct device *dev)
 213 {
 214         return gpio_get_value(GPIO_NR_PALMLD_SD_READONLY);
 215 }
 216
 217 static struct pxamci_platform_data palmld_mci_platform_data = {
 218         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 219         .setpower       = palmld_mci_power,
 220         .get_ro         = palmld_mci_get_ro,
 221         .init           = palmld_mci_init,
 222         .exit           = palmld_mci_exit,
 223 };
 224
 225 /******************************************************************************
 226  * GPIO keyboard
 227  ******************************************************************************/
 228 static unsigned int palmld_matrix_keys[] = {
 229         KEY(0, 1, KEY_F2),
 230         KEY(0, 2, KEY_UP),
 231
 232         KEY(1, 0, KEY_F3),
 233         KEY(1, 1, KEY_F4),
 234         KEY(1, 2, KEY_RIGHT),
 235
 236         KEY(2, 0, KEY_F1),
 237         KEY(2, 1, KEY_F5),
 238         KEY(2, 2, KEY_DOWN),
 239
 240         KEY(3, 0, KEY_F6),
 241         KEY(3, 1, KEY_ENTER),
 242         KEY(3, 2, KEY_LEFT),
 243 };
 244
 245 static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
 246         .matrix_key_rows        = 4,
 247         .matrix_key_cols        = 3,
 248         .matrix_key_map         = palmld_matrix_keys,
 249         .matrix_key_map_size    = ARRAY_SIZE(palmld_matrix_keys),
 250
 251         .debounce_interval      = 30,
 252 };
 253
 254 /******************************************************************************
 255  * GPIO keys
 256  ******************************************************************************/
 257 static struct gpio_keys_button palmld_pxa_buttons[] = {
 258         {KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 259         {KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
 260         {KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
 261 };
 262
 263 static struct gpio_keys_platform_data palmld_pxa_keys_data = {
 264         .buttons        = palmld_pxa_buttons,
 265         .nbuttons       = ARRAY_SIZE(palmld_pxa_buttons),
 266 };
 267
 268 static struct platform_device palmld_pxa_keys = {
 269         .name   = "gpio-keys",
 270         .id     = -1,
 271         .dev    = {
 272                 .platform_data = &palmld_pxa_keys_data,
 273         },
 274 };
 275
 276 /******************************************************************************
 277  * Backlight
 278  ******************************************************************************/
 279 static int palmld_backlight_init(struct device *dev)
 280 {
 281         int ret;
 282
 283         ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
 284         if (ret)
 285                 goto err;
 286         ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
 287         if (ret)
 288                 goto err2;
 289         ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
 290         if (ret)
 291                 goto err2;
 292         ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
 293         if (ret)
 294                 goto err3;
 295
 296         return 0;
 297 err3:
 298         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 299 err2:
 300         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 301 err:
 302         return ret;
 303 }
 304
 305 static int palmld_backlight_notify(int brightness)
 306 {
 307         gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
 308         gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
 309         return brightness;
 310 }
 311
 312 static void palmld_backlight_exit(struct device *dev)
 313 {
 314         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 315         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 316 }
 317
 318 static struct platform_pwm_backlight_data palmld_backlight_data = {
 319         .pwm_id         = 0,
 320         .max_brightness = PALMLD_MAX_INTENSITY,
 321         .dft_brightness = PALMLD_MAX_INTENSITY,
 322         .pwm_period_ns  = PALMLD_PERIOD_NS,
 323         .init           = palmld_backlight_init,
 324         .notify         = palmld_backlight_notify,
 325         .exit           = palmld_backlight_exit,
 326 };
 327
 328 static struct platform_device palmld_backlight = {
 329         .name   = "pwm-backlight",
 330         .dev    = {
 331                 .parent         = &pxa27x_device_pwm0.dev,
 332                 .platform_data  = &palmld_backlight_data,
 333         },
 334 };
 335
 336 /******************************************************************************
 337  * IrDA
 338  ******************************************************************************/
 339 static int palmld_irda_startup(struct device *dev)
 340 {
 341         int err;
 342         err = gpio_request(GPIO_NR_PALMLD_IR_DISABLE, "IR DISABLE");
 343         if (err)
 344                 goto err;
 345         err = gpio_direction_output(GPIO_NR_PALMLD_IR_DISABLE, 1);
 346         if (err)
 347                 gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 348 err:
 349         return err;
 350 }
 351
 352 static void palmld_irda_shutdown(struct device *dev)
 353 {
 354         gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 355 }
 356
 357 static void palmld_irda_transceiver_mode(struct device *dev, int mode)
 358 {
 359         gpio_set_value(GPIO_NR_PALMLD_IR_DISABLE, mode & IR_OFF);
 360         pxa2xx_transceiver_mode(dev, mode);
 361 }
 362
 363 static struct pxaficp_platform_data palmld_ficp_platform_data = {
 364         .startup                = palmld_irda_startup,
 365         .shutdown               = palmld_irda_shutdown,
 366         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 367         .transceiver_mode       = palmld_irda_transceiver_mode,
 368 };
 369
 370 /******************************************************************************
 371  * LEDs
 372  ******************************************************************************/
 373 struct gpio_led gpio_leds[] = {
 374 {
 375         .name                   = "palmld:green:led",
 376         .default_trigger        = "none",
 377         .gpio                   = GPIO_NR_PALMLD_LED_GREEN,
 378 }, {
 379         .name                   = "palmld:amber:led",
 380         .default_trigger        = "none",
 381         .gpio                   = GPIO_NR_PALMLD_LED_AMBER,
 382 },
 383 };
 384
 385 static struct gpio_led_platform_data gpio_led_info = {
 386         .leds           = gpio_leds,
 387         .num_leds       = ARRAY_SIZE(gpio_leds),
 388 };
 389
 390 static struct platform_device palmld_leds = {
 391         .name   = "leds-gpio",
 392         .id     = -1,
 393         .dev    = {
 394                 .platform_data  = &gpio_led_info,
 395         }
 396 };
 397
 398 /******************************************************************************
 399  * Power supply
 400  ******************************************************************************/
 401 static int power_supply_init(struct device *dev)
 402 {
 403         int ret;
 404
 405         ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
 406         if (ret)
 407                 goto err1;
 408         ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
 409         if (ret)
 410                 goto err2;
 411
 412         ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
 413         if (ret)
 414                 goto err2;
 415         ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
 416         if (ret)
 417                 goto err3;
 418
 419         return 0;
 420
 421 err3:
 422         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 423 err2:
 424         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 425 err1:
 426         return ret;
 427 }
 428
 429 static int palmld_is_ac_online(void)
 430 {
 431         return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
 432 }
 433
 434 static int palmld_is_usb_online(void)
 435 {
 436         return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
 437 }
 438
 439 static void power_supply_exit(struct device *dev)
 440 {
 441         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 442         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 443 }
 444
 445 static char *palmld_supplicants[] = {
 446         "main-battery",
 447 };
 448
 449 static struct pda_power_pdata power_supply_info = {
 450         .init            = power_supply_init,
 451         .is_ac_online    = palmld_is_ac_online,
 452         .is_usb_online   = palmld_is_usb_online,
 453         .exit            = power_supply_exit,
 454         .supplied_to     = palmld_supplicants,
 455         .num_supplicants = ARRAY_SIZE(palmld_supplicants),
 456 };
 457
 458 static struct platform_device power_supply = {
 459         .name = "pda-power",
 460         .id   = -1,
 461         .dev  = {
 462                 .platform_data = &power_supply_info,
 463         },
 464 };
 465
 466 /******************************************************************************
 467  * WM97xx battery
 468  ******************************************************************************/
 469 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 470         .batt_aux       = WM97XX_AUX_ID3,
 471         .temp_aux       = WM97XX_AUX_ID2,
 472         .charge_gpio    = -1,
 473         .max_voltage    = PALMLD_BAT_MAX_VOLTAGE,
 474         .min_voltage    = PALMLD_BAT_MIN_VOLTAGE,
 475         .batt_mult      = 1000,
 476         .batt_div       = 414,
 477         .temp_mult      = 1,
 478         .temp_div       = 1,
 479         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 480         .batt_name      = "main-batt",
 481 };
 482
 483 /******************************************************************************
 484  * aSoC audio
 485  ******************************************************************************/
 486 static struct palm27x_asoc_info palmld_asoc_pdata = {
 487         .jack_gpio      = GPIO_NR_PALMLD_EARPHONE_DETECT,
 488 };
 489
 490 static pxa2xx_audio_ops_t palmld_ac97_pdata = {
 491         .reset_gpio     = 95,
 492 };
 493
 494 static struct platform_device palmld_asoc = {
 495         .name = "palm27x-asoc",
 496         .id   = -1,
 497         .dev  = {
 498                 .platform_data = &palmld_asoc_pdata,
 499         },
 500 };
 501
 502 /******************************************************************************
 503  * HDD
 504  ******************************************************************************/
 505 static struct platform_device palmld_hdd = {
 506         .name   = "pata_palmld",
 507         .id     = -1,
 508 };
 509
 510 /******************************************************************************
 511  * Framebuffer
 512  ******************************************************************************/
 513 static struct pxafb_mode_info palmld_lcd_modes[] = {
 514 {
 515         .pixclock       = 57692,
 516         .xres           = 320,
 517         .yres           = 480,
 518         .bpp            = 16,
 519
 520         .left_margin    = 32,
 521         .right_margin   = 1,
 522         .upper_margin   = 7,
 523         .lower_margin   = 1,
 524
 525         .hsync_len      = 4,
 526         .vsync_len      = 1,
 527 },
 528 };
 529
 530 static struct pxafb_mach_info palmld_lcd_screen = {
 531         .modes          = palmld_lcd_modes,
 532         .num_modes      = ARRAY_SIZE(palmld_lcd_modes),
 533         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 534 };
 535
 536 /******************************************************************************
 537  * Power management - standby
 538  ******************************************************************************/
 539 static void __init palmld_pm_init(void)
 540 {
 541         static u32 resume[] = {
 542                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 543                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 544                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 545         };
 546
 547         /* copy the bootloader */
 548         memcpy(phys_to_virt(PALMLD_STR_BASE), resume, sizeof(resume));
 549 }
 550
 551 /******************************************************************************
 552  * Machine init
 553  ******************************************************************************/
 554 static struct platform_device *devices[] __initdata = {
 555 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 556         &palmld_pxa_keys,
 557 #endif
 558         &palmld_backlight,
 559         &palmld_leds,
 560         &power_supply,
 561         &palmld_asoc,
 562         &palmld_hdd,
 563 };
 564
 565 static struct map_desc palmld_io_desc[] __initdata = {
 566 {
 567         .virtual        = PALMLD_IDE_VIRT,
 568         .pfn            = __phys_to_pfn(PALMLD_IDE_PHYS),
 569         .length         = PALMLD_IDE_SIZE,
 570         .type           = MT_DEVICE
 571 },
 572 {
 573         .virtual        = PALMLD_USB_VIRT,
 574         .pfn            = __phys_to_pfn(PALMLD_USB_PHYS),
 575         .length         = PALMLD_USB_SIZE,
 576         .type           = MT_DEVICE
 577 },
 578 };
 579
 580 static void __init palmld_map_io(void)
 581 {
 582         pxa_map_io();
 583         iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
 584 }
 585
 586 static void __init palmld_init(void)
 587 {
 588         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
 589
 590         palmld_pm_init();
 591         set_pxa_fb_info(&palmld_lcd_screen);
 592         pxa_set_mci_info(&palmld_mci_platform_data);
 593         pxa_set_ac97_info(&palmld_ac97_pdata);
 594         pxa_set_ficp_info(&palmld_ficp_platform_data);
 595         pxa_set_keypad_info(&palmld_keypad_platform_data);
 596         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 597
 598         platform_add_devices(devices, ARRAY_SIZE(devices));
 599 }
 600
 601 MACHINE_START(PALMLD, "Palm LifeDrive")
 602         .phys_io        = PALMLD_PHYS_IO_START,
 603         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 604         .boot_params    = 0xa0000100,
 605         .map_io         = palmld_map_io,
 606         .init_irq       = pxa27x_init_irq,
 607         .timer          = &pxa_timer,
 608         .init_machine   = palmld_init
 609 MACHINE_END