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
  66         /* IrDA */
  67         GPIO108_GPIO,   /* ir disable */
  68         GPIO46_FICP_RXD,
  69         GPIO47_FICP_TXD,
  70
  71         /* MATRIX KEYPAD */
  72         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  73         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  74         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  75         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  76         GPIO103_KP_MKOUT_0,
  77         GPIO104_KP_MKOUT_1,
  78         GPIO105_KP_MKOUT_2,
  79
  80         /* LCD */
  81         GPIO58_LCD_LDD_0,
  82         GPIO59_LCD_LDD_1,
  83         GPIO60_LCD_LDD_2,
  84         GPIO61_LCD_LDD_3,
  85         GPIO62_LCD_LDD_4,
  86         GPIO63_LCD_LDD_5,
  87         GPIO64_LCD_LDD_6,
  88         GPIO65_LCD_LDD_7,
  89         GPIO66_LCD_LDD_8,
  90         GPIO67_LCD_LDD_9,
  91         GPIO68_LCD_LDD_10,
  92         GPIO69_LCD_LDD_11,
  93         GPIO70_LCD_LDD_12,
  94         GPIO71_LCD_LDD_13,
  95         GPIO72_LCD_LDD_14,
  96         GPIO73_LCD_LDD_15,
  97         GPIO74_LCD_FCLK,
  98         GPIO75_LCD_LCLK,
  99         GPIO76_LCD_PCLK,
 100         GPIO77_LCD_BIAS,
 101
 102         /* PWM */
 103         GPIO16_PWM0_OUT,
 104
 105         /* GPIO KEYS */
 106         GPIO10_GPIO,    /* hotsync button */
 107         GPIO12_GPIO,    /* power switch */
 108         GPIO15_GPIO,    /* lock switch */
 109
 110         /* LEDs */
 111         GPIO52_GPIO,    /* green led */
 112         GPIO94_GPIO,    /* orange led */
 113
 114         /* PCMCIA */
 115         GPIO48_nPOE,
 116         GPIO49_nPWE,
 117         GPIO50_nPIOR,
 118         GPIO51_nPIOW,
 119         GPIO85_nPCE_1,
 120         GPIO54_nPCE_2,
 121         GPIO79_PSKTSEL,
 122         GPIO55_nPREG,
 123         GPIO56_nPWAIT,
 124         GPIO57_nIOIS16,
 125         GPIO36_GPIO,    /* wifi power */
 126         GPIO38_GPIO,    /* wifi ready */
 127         GPIO81_GPIO,    /* wifi reset */
 128
 129         /* HDD */
 130         GPIO95_GPIO,    /* HDD irq */
 131         GPIO115_GPIO,   /* HDD power */
 132
 133         /* MISC */
 134         GPIO13_GPIO,    /* earphone detect */
 135 };
 136
 137 /******************************************************************************
 138  * SD/MMC card controller
 139  ******************************************************************************/
 140 static int palmld_mci_init(struct device *dev, irq_handler_t palmld_detect_int,
 141                                 void *data)
 142 {
 143         int err = 0;
 144
 145         /* Setup an interrupt for detecting card insert/remove events */
 146         err = gpio_request(GPIO_NR_PALMLD_SD_DETECT_N, "SD IRQ");
 147         if (err)
 148                 goto err;
 149         err = gpio_direction_input(GPIO_NR_PALMLD_SD_DETECT_N);
 150         if (err)
 151                 goto err2;
 152         err = request_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N),
 153                         palmld_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 154                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 155                         "SD/MMC card detect", data);
 156         if (err) {
 157                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 158                                 __func__);
 159                 goto err2;
 160         }
 161
 162         err = gpio_request(GPIO_NR_PALMLD_SD_POWER, "SD_POWER");
 163         if (err)
 164                 goto err3;
 165         err = gpio_direction_output(GPIO_NR_PALMLD_SD_POWER, 0);
 166         if (err)
 167                 goto err4;
 168
 169         err = gpio_request(GPIO_NR_PALMLD_SD_READONLY, "SD_READONLY");
 170         if (err)
 171                 goto err4;
 172         err = gpio_direction_input(GPIO_NR_PALMLD_SD_READONLY);
 173         if (err)
 174                 goto err5;
 175
 176         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 177
 178         return 0;
 179
 180 err5:
 181         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 182 err4:
 183         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 184 err3:
 185         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 186 err2:
 187         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 188 err:
 189         return err;
 190 }
 191
 192 static void palmld_mci_exit(struct device *dev, void *data)
 193 {
 194         gpio_free(GPIO_NR_PALMLD_SD_READONLY);
 195         gpio_free(GPIO_NR_PALMLD_SD_POWER);
 196         free_irq(gpio_to_irq(GPIO_NR_PALMLD_SD_DETECT_N), data);
 197         gpio_free(GPIO_NR_PALMLD_SD_DETECT_N);
 198 }
 199
 200 static void palmld_mci_power(struct device *dev, unsigned int vdd)
 201 {
 202         struct pxamci_platform_data *p_d = dev->platform_data;
 203         gpio_set_value(GPIO_NR_PALMLD_SD_POWER, p_d->ocr_mask & (1 << vdd));
 204 }
 205
 206 static int palmld_mci_get_ro(struct device *dev)
 207 {
 208         return gpio_get_value(GPIO_NR_PALMLD_SD_READONLY);
 209 }
 210
 211 static struct pxamci_platform_data palmld_mci_platform_data = {
 212         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 213         .setpower       = palmld_mci_power,
 214         .get_ro         = palmld_mci_get_ro,
 215         .init           = palmld_mci_init,
 216         .exit           = palmld_mci_exit,
 217 };
 218
 219 /******************************************************************************
 220  * GPIO keyboard
 221  ******************************************************************************/
 222 static unsigned int palmld_matrix_keys[] = {
 223         KEY(0, 1, KEY_F2),
 224         KEY(0, 2, KEY_UP),
 225
 226         KEY(1, 0, KEY_F3),
 227         KEY(1, 1, KEY_F4),
 228         KEY(1, 2, KEY_RIGHT),
 229
 230         KEY(2, 0, KEY_F1),
 231         KEY(2, 1, KEY_F5),
 232         KEY(2, 2, KEY_DOWN),
 233
 234         KEY(3, 0, KEY_F6),
 235         KEY(3, 1, KEY_ENTER),
 236         KEY(3, 2, KEY_LEFT),
 237 };
 238
 239 static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
 240         .matrix_key_rows        = 4,
 241         .matrix_key_cols        = 3,
 242         .matrix_key_map         = palmld_matrix_keys,
 243         .matrix_key_map_size    = ARRAY_SIZE(palmld_matrix_keys),
 244
 245         .debounce_interval      = 30,
 246 };
 247
 248 /******************************************************************************
 249  * GPIO keys
 250  ******************************************************************************/
 251 static struct gpio_keys_button palmld_pxa_buttons[] = {
 252         {KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 253         {KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
 254         {KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
 255 };
 256
 257 static struct gpio_keys_platform_data palmld_pxa_keys_data = {
 258         .buttons        = palmld_pxa_buttons,
 259         .nbuttons       = ARRAY_SIZE(palmld_pxa_buttons),
 260 };
 261
 262 static struct platform_device palmld_pxa_keys = {
 263         .name   = "gpio-keys",
 264         .id     = -1,
 265         .dev    = {
 266                 .platform_data = &palmld_pxa_keys_data,
 267         },
 268 };
 269
 270 /******************************************************************************
 271  * Backlight
 272  ******************************************************************************/
 273 static int palmld_backlight_init(struct device *dev)
 274 {
 275         int ret;
 276
 277         ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
 278         if (ret)
 279                 goto err;
 280         ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
 281         if (ret)
 282                 goto err2;
 283         ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
 284         if (ret)
 285                 goto err2;
 286         ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
 287         if (ret)
 288                 goto err3;
 289
 290         return 0;
 291 err3:
 292         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 293 err2:
 294         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 295 err:
 296         return ret;
 297 }
 298
 299 static int palmld_backlight_notify(int brightness)
 300 {
 301         gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
 302         gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
 303         return brightness;
 304 }
 305
 306 static void palmld_backlight_exit(struct device *dev)
 307 {
 308         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 309         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 310 }
 311
 312 static struct platform_pwm_backlight_data palmld_backlight_data = {
 313         .pwm_id         = 0,
 314         .max_brightness = PALMLD_MAX_INTENSITY,
 315         .dft_brightness = PALMLD_MAX_INTENSITY,
 316         .pwm_period_ns  = PALMLD_PERIOD_NS,
 317         .init           = palmld_backlight_init,
 318         .notify         = palmld_backlight_notify,
 319         .exit           = palmld_backlight_exit,
 320 };
 321
 322 static struct platform_device palmld_backlight = {
 323         .name   = "pwm-backlight",
 324         .dev    = {
 325                 .parent         = &pxa27x_device_pwm0.dev,
 326                 .platform_data  = &palmld_backlight_data,
 327         },
 328 };
 329
 330 /******************************************************************************
 331  * IrDA
 332  ******************************************************************************/
 333 static int palmld_irda_startup(struct device *dev)
 334 {
 335         int err;
 336         err = gpio_request(GPIO_NR_PALMLD_IR_DISABLE, "IR DISABLE");
 337         if (err)
 338                 goto err;
 339         err = gpio_direction_output(GPIO_NR_PALMLD_IR_DISABLE, 1);
 340         if (err)
 341                 gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 342 err:
 343         return err;
 344 }
 345
 346 static void palmld_irda_shutdown(struct device *dev)
 347 {
 348         gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 349 }
 350
 351 static void palmld_irda_transceiver_mode(struct device *dev, int mode)
 352 {
 353         gpio_set_value(GPIO_NR_PALMLD_IR_DISABLE, mode & IR_OFF);
 354         pxa2xx_transceiver_mode(dev, mode);
 355 }
 356
 357 static struct pxaficp_platform_data palmld_ficp_platform_data = {
 358         .startup                = palmld_irda_startup,
 359         .shutdown               = palmld_irda_shutdown,
 360         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 361         .transceiver_mode       = palmld_irda_transceiver_mode,
 362 };
 363
 364 /******************************************************************************
 365  * LEDs
 366  ******************************************************************************/
 367 struct gpio_led gpio_leds[] = {
 368 {
 369         .name                   = "palmld:green:led",
 370         .default_trigger        = "none",
 371         .gpio                   = GPIO_NR_PALMLD_LED_GREEN,
 372 }, {
 373         .name                   = "palmld:amber:led",
 374         .default_trigger        = "none",
 375         .gpio                   = GPIO_NR_PALMLD_LED_AMBER,
 376 },
 377 };
 378
 379 static struct gpio_led_platform_data gpio_led_info = {
 380         .leds           = gpio_leds,
 381         .num_leds       = ARRAY_SIZE(gpio_leds),
 382 };
 383
 384 static struct platform_device palmld_leds = {
 385         .name   = "leds-gpio",
 386         .id     = -1,
 387         .dev    = {
 388                 .platform_data  = &gpio_led_info,
 389         }
 390 };
 391
 392 /******************************************************************************
 393  * Power supply
 394  ******************************************************************************/
 395 static int power_supply_init(struct device *dev)
 396 {
 397         int ret;
 398
 399         ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
 400         if (ret)
 401                 goto err1;
 402         ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
 403         if (ret)
 404                 goto err2;
 405
 406         ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
 407         if (ret)
 408                 goto err2;
 409         ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
 410         if (ret)
 411                 goto err3;
 412
 413         return 0;
 414
 415 err3:
 416         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 417 err2:
 418         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 419 err1:
 420         return ret;
 421 }
 422
 423 static int palmld_is_ac_online(void)
 424 {
 425         return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
 426 }
 427
 428 static int palmld_is_usb_online(void)
 429 {
 430         return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
 431 }
 432
 433 static void power_supply_exit(struct device *dev)
 434 {
 435         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 436         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 437 }
 438
 439 static char *palmld_supplicants[] = {
 440         "main-battery",
 441 };
 442
 443 static struct pda_power_pdata power_supply_info = {
 444         .init            = power_supply_init,
 445         .is_ac_online    = palmld_is_ac_online,
 446         .is_usb_online   = palmld_is_usb_online,
 447         .exit            = power_supply_exit,
 448         .supplied_to     = palmld_supplicants,
 449         .num_supplicants = ARRAY_SIZE(palmld_supplicants),
 450 };
 451
 452 static struct platform_device power_supply = {
 453         .name = "pda-power",
 454         .id   = -1,
 455         .dev  = {
 456                 .platform_data = &power_supply_info,
 457         },
 458 };
 459
 460 /******************************************************************************
 461  * WM97xx battery
 462  ******************************************************************************/
 463 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 464         .batt_aux       = WM97XX_AUX_ID3,
 465         .temp_aux       = WM97XX_AUX_ID2,
 466         .charge_gpio    = -1,
 467         .max_voltage    = PALMLD_BAT_MAX_VOLTAGE,
 468         .min_voltage    = PALMLD_BAT_MIN_VOLTAGE,
 469         .batt_mult      = 1000,
 470         .batt_div       = 414,
 471         .temp_mult      = 1,
 472         .temp_div       = 1,
 473         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 474         .batt_name      = "main-batt",
 475 };
 476
 477 /******************************************************************************
 478  * aSoC audio
 479  ******************************************************************************/
 480 static struct palm27x_asoc_info palm27x_asoc_pdata = {
 481         .jack_gpio      = GPIO_NR_PALMLD_EARPHONE_DETECT,
 482 };
 483
 484 /******************************************************************************
 485  * Framebuffer
 486  ******************************************************************************/
 487 static struct pxafb_mode_info palmld_lcd_modes[] = {
 488 {
 489         .pixclock       = 57692,
 490         .xres           = 320,
 491         .yres           = 480,
 492         .bpp            = 16,
 493
 494         .left_margin    = 32,
 495         .right_margin   = 1,
 496         .upper_margin   = 7,
 497         .lower_margin   = 1,
 498
 499         .hsync_len      = 4,
 500         .vsync_len      = 1,
 501 },
 502 };
 503
 504 static struct pxafb_mach_info palmld_lcd_screen = {
 505         .modes          = palmld_lcd_modes,
 506         .num_modes      = ARRAY_SIZE(palmld_lcd_modes),
 507         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 508 };
 509
 510 /******************************************************************************
 511  * Power management - standby
 512  ******************************************************************************/
 513 #ifdef CONFIG_PM
 514 static u32 *addr __initdata;
 515 static u32 resume[3] __initdata = {
 516         0xe3a00101,     /* mov  r0,     #0x40000000 */
 517         0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 518         0xe590f008,     /* ldr  pc, [r0, #0x08] */
 519 };
 520
 521 static int __init palmld_pm_init(void)
 522 {
 523         int i;
 524
 525         /* this is where the bootloader jumps */
 526         addr = phys_to_virt(PALMLD_STR_BASE);
 527
 528         for (i = 0; i < 3; i++)
 529                 addr[i] = resume[i];
 530
 531         return 0;
 532 }
 533
 534 device_initcall(palmld_pm_init);
 535 #endif
 536
 537 /******************************************************************************
 538  * Machine init
 539  ******************************************************************************/
 540 static struct platform_device *devices[] __initdata = {
 541 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 542         &palmld_pxa_keys,
 543 #endif
 544         &palmld_backlight,
 545         &palmld_leds,
 546         &power_supply,
 547 };
 548
 549 static struct map_desc palmld_io_desc[] __initdata = {
 550 {
 551         .virtual        = PALMLD_IDE_VIRT,
 552         .pfn            = __phys_to_pfn(PALMLD_IDE_PHYS),
 553         .length         = PALMLD_IDE_SIZE,
 554         .type           = MT_DEVICE
 555 },
 556 {
 557         .virtual        = PALMLD_USB_VIRT,
 558         .pfn            = __phys_to_pfn(PALMLD_USB_PHYS),
 559         .length         = PALMLD_USB_SIZE,
 560         .type           = MT_DEVICE
 561 },
 562 };
 563
 564 static void __init palmld_map_io(void)
 565 {
 566         pxa_map_io();
 567         iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
 568 }
 569
 570 static void __init palmld_init(void)
 571 {
 572         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
 573
 574         set_pxa_fb_info(&palmld_lcd_screen);
 575         pxa_set_mci_info(&palmld_mci_platform_data);
 576         pxa_set_ac97_info(NULL);
 577         pxa_set_ficp_info(&palmld_ficp_platform_data);
 578         pxa_set_keypad_info(&palmld_keypad_platform_data);
 579         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 580         palm27x_asoc_set_pdata(&palm27x_asoc_pdata);
 581
 582         platform_add_devices(devices, ARRAY_SIZE(devices));
 583 }
 584
 585 MACHINE_START(PALMLD, "Palm LifeDrive")
 586         .phys_io        = PALMLD_PHYS_IO_START,
 587         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 588         .boot_params    = 0xa0000100,
 589         .map_io         = palmld_map_io,
 590         .init_irq       = pxa27x_init_irq,
 591         .timer          = &pxa_timer,
 592         .init_machine   = palmld_init
 593 MACHINE_END