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         /* HDD */
 132         GPIO95_GPIO,    /* HDD irq */
 133         GPIO115_GPIO,   /* HDD power */
 134
 135         /* MISC */
 136         GPIO13_GPIO,    /* earphone detect */
 137 };
 138
 139 /******************************************************************************
 140  * SD/MMC card controller
 141  ******************************************************************************/
 142 static int palmld_mci_init(struct device *dev, irq_handler_t palmld_detect_int,
 143                                 void *data)
 144 {
 145         int err = 0;
 146
 147         /* Setup an interrupt for detecting card insert/remove events */
 148         err = gpio_request(GPIO_NR_PALMLD_SD_DETECT_N, "SD IRQ");
 149         if (err)
 150                 goto err;
 151         err = gpio_direction_input(GPIO_NR_PALMLD_SD_DETECT_N);
 152         if (err)
 153                 goto err2;
 154         err = request_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N),
 155                         palmld_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 156                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 157                         "SD/MMC card detect", data);
 158         if (err) {
 159                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 160                                 __func__);
 161                 goto err2;
 162         }
 163
 164         err = gpio_request(GPIO_NR_PALMLD_SD_POWER, "SD_POWER");
 165         if (err)
 166                 goto err3;
 167         err = gpio_direction_output(GPIO_NR_PALMLD_SD_POWER, 0);
 168         if (err)
 169                 goto err4;
 170
 171         err = gpio_request(GPIO_NR_PALMLD_SD_READONLY, "SD_READONLY");
 172         if (err)
 173                 goto err4;
 174         err = gpio_direction_input(GPIO_NR_PALMLD_SD_READONLY);
 175         if (err)
 176                 goto err5;
 177
 178         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 179
 180         return 0;
 181
 182 err5:
 183         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 184 err4:
 185         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 186 err3:
 187         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 188 err2:
 189         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 190 err:
 191         return err;
 192 }
 193
 194 static void palmld_mci_exit(struct device *dev, void *data)
 195 {
 196         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 197         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 198         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 199         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 200 }
 201
 202 static void palmld_mci_power(struct device *dev, unsigned int vdd)
 203 {
 204         struct pxamci_platform_data *p_d = dev->platform_data;
 205         gpio_set_value(GPIO_NR_PALMLD_SD_POWER, p_d->ocr_mask & (1 << vdd));
 206 }
 207
 208 static int palmld_mci_get_ro(struct device *dev)
 209 {
 210         return gpio_get_value(GPIO_NR_PALMLD_SD_READONLY);
 211 }
 212
 213 static struct pxamci_platform_data palmld_mci_platform_data = {
 214         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 215         .setpower       = palmld_mci_power,
 216         .get_ro         = palmld_mci_get_ro,
 217         .init           = palmld_mci_init,
 218         .exit           = palmld_mci_exit,
 219 };
 220
 221 /******************************************************************************
 222  * GPIO keyboard
 223  ******************************************************************************/
 224 static unsigned int palmld_matrix_keys[] = {
 225         KEY(0, 1, KEY_F2),
 226         KEY(0, 2, KEY_UP),
 227
 228         KEY(1, 0, KEY_F3),
 229         KEY(1, 1, KEY_F4),
 230         KEY(1, 2, KEY_RIGHT),
 231
 232         KEY(2, 0, KEY_F1),
 233         KEY(2, 1, KEY_F5),
 234         KEY(2, 2, KEY_DOWN),
 235
 236         KEY(3, 0, KEY_F6),
 237         KEY(3, 1, KEY_ENTER),
 238         KEY(3, 2, KEY_LEFT),
 239 };
 240
 241 static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
 242         .matrix_key_rows        = 4,
 243         .matrix_key_cols        = 3,
 244         .matrix_key_map         = palmld_matrix_keys,
 245         .matrix_key_map_size    = ARRAY_SIZE(palmld_matrix_keys),
 246
 247         .debounce_interval      = 30,
 248 };
 249
 250 /******************************************************************************
 251  * GPIO keys
 252  ******************************************************************************/
 253 static struct gpio_keys_button palmld_pxa_buttons[] = {
 254         {KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 255         {KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
 256         {KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
 257 };
 258
 259 static struct gpio_keys_platform_data palmld_pxa_keys_data = {
 260         .buttons        = palmld_pxa_buttons,
 261         .nbuttons       = ARRAY_SIZE(palmld_pxa_buttons),
 262 };
 263
 264 static struct platform_device palmld_pxa_keys = {
 265         .name   = "gpio-keys",
 266         .id     = -1,
 267         .dev    = {
 268                 .platform_data = &palmld_pxa_keys_data,
 269         },
 270 };
 271
 272 /******************************************************************************
 273  * Backlight
 274  ******************************************************************************/
 275 static int palmld_backlight_init(struct device *dev)
 276 {
 277         int ret;
 278
 279         ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
 280         if (ret)
 281                 goto err;
 282         ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
 283         if (ret)
 284                 goto err2;
 285         ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
 286         if (ret)
 287                 goto err2;
 288         ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
 289         if (ret)
 290                 goto err3;
 291
 292         return 0;
 293 err3:
 294         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 295 err2:
 296         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 297 err:
 298         return ret;
 299 }
 300
 301 static int palmld_backlight_notify(int brightness)
 302 {
 303         gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
 304         gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
 305         return brightness;
 306 }
 307
 308 static void palmld_backlight_exit(struct device *dev)
 309 {
 310         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 311         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 312 }
 313
 314 static struct platform_pwm_backlight_data palmld_backlight_data = {
 315         .pwm_id         = 0,
 316         .max_brightness = PALMLD_MAX_INTENSITY,
 317         .dft_brightness = PALMLD_MAX_INTENSITY,
 318         .pwm_period_ns  = PALMLD_PERIOD_NS,
 319         .init           = palmld_backlight_init,
 320         .notify         = palmld_backlight_notify,
 321         .exit           = palmld_backlight_exit,
 322 };
 323
 324 static struct platform_device palmld_backlight = {
 325         .name   = "pwm-backlight",
 326         .dev    = {
 327                 .parent         = &pxa27x_device_pwm0.dev,
 328                 .platform_data  = &palmld_backlight_data,
 329         },
 330 };
 331
 332 /******************************************************************************
 333  * IrDA
 334  ******************************************************************************/
 335 static int palmld_irda_startup(struct device *dev)
 336 {
 337         int err;
 338         err = gpio_request(GPIO_NR_PALMLD_IR_DISABLE, "IR DISABLE");
 339         if (err)
 340                 goto err;
 341         err = gpio_direction_output(GPIO_NR_PALMLD_IR_DISABLE, 1);
 342         if (err)
 343                 gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 344 err:
 345         return err;
 346 }
 347
 348 static void palmld_irda_shutdown(struct device *dev)
 349 {
 350         gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 351 }
 352
 353 static void palmld_irda_transceiver_mode(struct device *dev, int mode)
 354 {
 355         gpio_set_value(GPIO_NR_PALMLD_IR_DISABLE, mode & IR_OFF);
 356         pxa2xx_transceiver_mode(dev, mode);
 357 }
 358
 359 static struct pxaficp_platform_data palmld_ficp_platform_data = {
 360         .startup                = palmld_irda_startup,
 361         .shutdown               = palmld_irda_shutdown,
 362         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 363         .transceiver_mode       = palmld_irda_transceiver_mode,
 364 };
 365
 366 /******************************************************************************
 367  * LEDs
 368  ******************************************************************************/
 369 struct gpio_led gpio_leds[] = {
 370 {
 371         .name                   = "palmld:green:led",
 372         .default_trigger        = "none",
 373         .gpio                   = GPIO_NR_PALMLD_LED_GREEN,
 374 }, {
 375         .name                   = "palmld:amber:led",
 376         .default_trigger        = "none",
 377         .gpio                   = GPIO_NR_PALMLD_LED_AMBER,
 378 },
 379 };
 380
 381 static struct gpio_led_platform_data gpio_led_info = {
 382         .leds           = gpio_leds,
 383         .num_leds       = ARRAY_SIZE(gpio_leds),
 384 };
 385
 386 static struct platform_device palmld_leds = {
 387         .name   = "leds-gpio",
 388         .id     = -1,
 389         .dev    = {
 390                 .platform_data  = &gpio_led_info,
 391         }
 392 };
 393
 394 /******************************************************************************
 395  * Power supply
 396  ******************************************************************************/
 397 static int power_supply_init(struct device *dev)
 398 {
 399         int ret;
 400
 401         ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
 402         if (ret)
 403                 goto err1;
 404         ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
 405         if (ret)
 406                 goto err2;
 407
 408         ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
 409         if (ret)
 410                 goto err2;
 411         ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
 412         if (ret)
 413                 goto err3;
 414
 415         return 0;
 416
 417 err3:
 418         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 419 err2:
 420         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 421 err1:
 422         return ret;
 423 }
 424
 425 static int palmld_is_ac_online(void)
 426 {
 427         return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
 428 }
 429
 430 static int palmld_is_usb_online(void)
 431 {
 432         return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
 433 }
 434
 435 static void power_supply_exit(struct device *dev)
 436 {
 437         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 438         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 439 }
 440
 441 static char *palmld_supplicants[] = {
 442         "main-battery",
 443 };
 444
 445 static struct pda_power_pdata power_supply_info = {
 446         .init            = power_supply_init,
 447         .is_ac_online    = palmld_is_ac_online,
 448         .is_usb_online   = palmld_is_usb_online,
 449         .exit            = power_supply_exit,
 450         .supplied_to     = palmld_supplicants,
 451         .num_supplicants = ARRAY_SIZE(palmld_supplicants),
 452 };
 453
 454 static struct platform_device power_supply = {
 455         .name = "pda-power",
 456         .id   = -1,
 457         .dev  = {
 458                 .platform_data = &power_supply_info,
 459         },
 460 };
 461
 462 /******************************************************************************
 463  * WM97xx battery
 464  ******************************************************************************/
 465 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 466         .batt_aux       = WM97XX_AUX_ID3,
 467         .temp_aux       = WM97XX_AUX_ID2,
 468         .charge_gpio    = -1,
 469         .max_voltage    = PALMLD_BAT_MAX_VOLTAGE,
 470         .min_voltage    = PALMLD_BAT_MIN_VOLTAGE,
 471         .batt_mult      = 1000,
 472         .batt_div       = 414,
 473         .temp_mult      = 1,
 474         .temp_div       = 1,
 475         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 476         .batt_name      = "main-batt",
 477 };
 478
 479 /******************************************************************************
 480  * aSoC audio
 481  ******************************************************************************/
 482 static struct palm27x_asoc_info palmld_asoc_pdata = {
 483         .jack_gpio      = GPIO_NR_PALMLD_EARPHONE_DETECT,
 484 };
 485
 486 static pxa2xx_audio_ops_t palmld_ac97_pdata = {
 487         .reset_gpio     = 95,
 488 };
 489
 490 static struct platform_device palmld_asoc = {
 491         .name = "palm27x-asoc",
 492         .id   = -1,
 493         .dev  = {
 494                 .platform_data = &palmld_asoc_pdata,
 495         },
 496 };
 497
 498 /******************************************************************************
 499  * Framebuffer
 500  ******************************************************************************/
 501 static struct pxafb_mode_info palmld_lcd_modes[] = {
 502 {
 503         .pixclock       = 57692,
 504         .xres           = 320,
 505         .yres           = 480,
 506         .bpp            = 16,
 507
 508         .left_margin    = 32,
 509         .right_margin   = 1,
 510         .upper_margin   = 7,
 511         .lower_margin   = 1,
 512
 513         .hsync_len      = 4,
 514         .vsync_len      = 1,
 515 },
 516 };
 517
 518 static struct pxafb_mach_info palmld_lcd_screen = {
 519         .modes          = palmld_lcd_modes,
 520         .num_modes      = ARRAY_SIZE(palmld_lcd_modes),
 521         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 522 };
 523
 524 /******************************************************************************
 525  * Power management - standby
 526  ******************************************************************************/
 527 static void __init palmld_pm_init(void)
 528 {
 529         static u32 resume[] = {
 530                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 531                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 532                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 533         };
 534
 535         /* copy the bootloader */
 536         memcpy(phys_to_virt(PALMLD_STR_BASE), resume, sizeof(resume));
 537 }
 538
 539 /******************************************************************************
 540  * Machine init
 541  ******************************************************************************/
 542 static struct platform_device *devices[] __initdata = {
 543 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 544         &palmld_pxa_keys,
 545 #endif
 546         &palmld_backlight,
 547         &palmld_leds,
 548         &power_supply,
 549         &palmld_asoc,
 550 };
 551
 552 static struct map_desc palmld_io_desc[] __initdata = {
 553 {
 554         .virtual        = PALMLD_IDE_VIRT,
 555         .pfn            = __phys_to_pfn(PALMLD_IDE_PHYS),
 556         .length         = PALMLD_IDE_SIZE,
 557         .type           = MT_DEVICE
 558 },
 559 {
 560         .virtual        = PALMLD_USB_VIRT,
 561         .pfn            = __phys_to_pfn(PALMLD_USB_PHYS),
 562         .length         = PALMLD_USB_SIZE,
 563         .type           = MT_DEVICE
 564 },
 565 };
 566
 567 static void __init palmld_map_io(void)
 568 {
 569         pxa_map_io();
 570         iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
 571 }
 572
 573 static void __init palmld_init(void)
 574 {
 575         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
 576
 577         palmld_pm_init();
 578         set_pxa_fb_info(&palmld_lcd_screen);
 579         pxa_set_mci_info(&palmld_mci_platform_data);
 580         pxa_set_ac97_info(&palmld_ac97_pdata);
 581         pxa_set_ficp_info(&palmld_ficp_platform_data);
 582         pxa_set_keypad_info(&palmld_keypad_platform_data);
 583         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 584
 585         platform_add_devices(devices, ARRAY_SIZE(devices));
 586 }
 587
 588 MACHINE_START(PALMLD, "Palm LifeDrive")
 589         .phys_io        = PALMLD_PHYS_IO_START,
 590         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 591         .boot_params    = 0xa0000100,
 592         .map_io         = palmld_map_io,
 593         .init_irq       = pxa27x_init_irq,
 594         .timer          = &pxa_timer,
 595         .init_machine   = palmld_init
 596 MACHINE_END