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 struct pxamci_platform_data palmld_mci_platform_data = {
 147         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 148         .gpio_card_detect       = GPIO_NR_PALMLD_SD_DETECT_N,
 149         .gpio_card_ro           = GPIO_NR_PALMLD_SD_READONLY,
 150         .gpio_power             = GPIO_NR_PALMLD_SD_POWER,
 151         .detect_delay           = 20,
 152 };
 153
 154 /******************************************************************************
 155  * GPIO keyboard
 156  ******************************************************************************/
 157 static unsigned int palmld_matrix_keys[] = {
 158         KEY(0, 1, KEY_F2),
 159         KEY(0, 2, KEY_UP),
 160
 161         KEY(1, 0, KEY_F3),
 162         KEY(1, 1, KEY_F4),
 163         KEY(1, 2, KEY_RIGHT),
 164
 165         KEY(2, 0, KEY_F1),
 166         KEY(2, 1, KEY_F5),
 167         KEY(2, 2, KEY_DOWN),
 168
 169         KEY(3, 0, KEY_F6),
 170         KEY(3, 1, KEY_ENTER),
 171         KEY(3, 2, KEY_LEFT),
 172 };
 173
 174 static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
 175         .matrix_key_rows        = 4,
 176         .matrix_key_cols        = 3,
 177         .matrix_key_map         = palmld_matrix_keys,
 178         .matrix_key_map_size    = ARRAY_SIZE(palmld_matrix_keys),
 179
 180         .debounce_interval      = 30,
 181 };
 182
 183 /******************************************************************************
 184  * GPIO keys
 185  ******************************************************************************/
 186 static struct gpio_keys_button palmld_pxa_buttons[] = {
 187         {KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 188         {KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
 189         {KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
 190 };
 191
 192 static struct gpio_keys_platform_data palmld_pxa_keys_data = {
 193         .buttons        = palmld_pxa_buttons,
 194         .nbuttons       = ARRAY_SIZE(palmld_pxa_buttons),
 195 };
 196
 197 static struct platform_device palmld_pxa_keys = {
 198         .name   = "gpio-keys",
 199         .id     = -1,
 200         .dev    = {
 201                 .platform_data = &palmld_pxa_keys_data,
 202         },
 203 };
 204
 205 /******************************************************************************
 206  * Backlight
 207  ******************************************************************************/
 208 static int palmld_backlight_init(struct device *dev)
 209 {
 210         int ret;
 211
 212         ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
 213         if (ret)
 214                 goto err;
 215         ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
 216         if (ret)
 217                 goto err2;
 218         ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
 219         if (ret)
 220                 goto err2;
 221         ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
 222         if (ret)
 223                 goto err3;
 224
 225         return 0;
 226 err3:
 227         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 228 err2:
 229         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 230 err:
 231         return ret;
 232 }
 233
 234 static int palmld_backlight_notify(int brightness)
 235 {
 236         gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
 237         gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
 238         return brightness;
 239 }
 240
 241 static void palmld_backlight_exit(struct device *dev)
 242 {
 243         gpio_free(GPIO_NR_PALMLD_BL_POWER);
 244         gpio_free(GPIO_NR_PALMLD_LCD_POWER);
 245 }
 246
 247 static struct platform_pwm_backlight_data palmld_backlight_data = {
 248         .pwm_id         = 0,
 249         .max_brightness = PALMLD_MAX_INTENSITY,
 250         .dft_brightness = PALMLD_MAX_INTENSITY,
 251         .pwm_period_ns  = PALMLD_PERIOD_NS,
 252         .init           = palmld_backlight_init,
 253         .notify         = palmld_backlight_notify,
 254         .exit           = palmld_backlight_exit,
 255 };
 256
 257 static struct platform_device palmld_backlight = {
 258         .name   = "pwm-backlight",
 259         .dev    = {
 260                 .parent         = &pxa27x_device_pwm0.dev,
 261                 .platform_data  = &palmld_backlight_data,
 262         },
 263 };
 264
 265 /******************************************************************************
 266  * IrDA
 267  ******************************************************************************/
 268 static int palmld_irda_startup(struct device *dev)
 269 {
 270         int err;
 271         err = gpio_request(GPIO_NR_PALMLD_IR_DISABLE, "IR DISABLE");
 272         if (err)
 273                 goto err;
 274         err = gpio_direction_output(GPIO_NR_PALMLD_IR_DISABLE, 1);
 275         if (err)
 276                 gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 277 err:
 278         return err;
 279 }
 280
 281 static void palmld_irda_shutdown(struct device *dev)
 282 {
 283         gpio_free(GPIO_NR_PALMLD_IR_DISABLE);
 284 }
 285
 286 static void palmld_irda_transceiver_mode(struct device *dev, int mode)
 287 {
 288         gpio_set_value(GPIO_NR_PALMLD_IR_DISABLE, mode & IR_OFF);
 289         pxa2xx_transceiver_mode(dev, mode);
 290 }
 291
 292 static struct pxaficp_platform_data palmld_ficp_platform_data = {
 293         .startup                = palmld_irda_startup,
 294         .shutdown               = palmld_irda_shutdown,
 295         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 296         .transceiver_mode       = palmld_irda_transceiver_mode,
 297 };
 298
 299 /******************************************************************************
 300  * LEDs
 301  ******************************************************************************/
 302 struct gpio_led gpio_leds[] = {
 303 {
 304         .name                   = "palmld:green:led",
 305         .default_trigger        = "none",
 306         .gpio                   = GPIO_NR_PALMLD_LED_GREEN,
 307 }, {
 308         .name                   = "palmld:amber:led",
 309         .default_trigger        = "none",
 310         .gpio                   = GPIO_NR_PALMLD_LED_AMBER,
 311 },
 312 };
 313
 314 static struct gpio_led_platform_data gpio_led_info = {
 315         .leds           = gpio_leds,
 316         .num_leds       = ARRAY_SIZE(gpio_leds),
 317 };
 318
 319 static struct platform_device palmld_leds = {
 320         .name   = "leds-gpio",
 321         .id     = -1,
 322         .dev    = {
 323                 .platform_data  = &gpio_led_info,
 324         }
 325 };
 326
 327 /******************************************************************************
 328  * Power supply
 329  ******************************************************************************/
 330 static int power_supply_init(struct device *dev)
 331 {
 332         int ret;
 333
 334         ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
 335         if (ret)
 336                 goto err1;
 337         ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
 338         if (ret)
 339                 goto err2;
 340
 341         ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
 342         if (ret)
 343                 goto err2;
 344         ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
 345         if (ret)
 346                 goto err3;
 347
 348         return 0;
 349
 350 err3:
 351         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 352 err2:
 353         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 354 err1:
 355         return ret;
 356 }
 357
 358 static int palmld_is_ac_online(void)
 359 {
 360         return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
 361 }
 362
 363 static int palmld_is_usb_online(void)
 364 {
 365         return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
 366 }
 367
 368 static void power_supply_exit(struct device *dev)
 369 {
 370         gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
 371         gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
 372 }
 373
 374 static char *palmld_supplicants[] = {
 375         "main-battery",
 376 };
 377
 378 static struct pda_power_pdata power_supply_info = {
 379         .init            = power_supply_init,
 380         .is_ac_online    = palmld_is_ac_online,
 381         .is_usb_online   = palmld_is_usb_online,
 382         .exit            = power_supply_exit,
 383         .supplied_to     = palmld_supplicants,
 384         .num_supplicants = ARRAY_SIZE(palmld_supplicants),
 385 };
 386
 387 static struct platform_device power_supply = {
 388         .name = "pda-power",
 389         .id   = -1,
 390         .dev  = {
 391                 .platform_data = &power_supply_info,
 392         },
 393 };
 394
 395 /******************************************************************************
 396  * WM97xx battery
 397  ******************************************************************************/
 398 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 399         .batt_aux       = WM97XX_AUX_ID3,
 400         .temp_aux       = WM97XX_AUX_ID2,
 401         .charge_gpio    = -1,
 402         .max_voltage    = PALMLD_BAT_MAX_VOLTAGE,
 403         .min_voltage    = PALMLD_BAT_MIN_VOLTAGE,
 404         .batt_mult      = 1000,
 405         .batt_div       = 414,
 406         .temp_mult      = 1,
 407         .temp_div       = 1,
 408         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 409         .batt_name      = "main-batt",
 410 };
 411
 412 /******************************************************************************
 413  * aSoC audio
 414  ******************************************************************************/
 415 static struct palm27x_asoc_info palmld_asoc_pdata = {
 416         .jack_gpio      = GPIO_NR_PALMLD_EARPHONE_DETECT,
 417 };
 418
 419 static pxa2xx_audio_ops_t palmld_ac97_pdata = {
 420         .reset_gpio     = 95,
 421 };
 422
 423 static struct platform_device palmld_asoc = {
 424         .name = "palm27x-asoc",
 425         .id   = -1,
 426         .dev  = {
 427                 .platform_data = &palmld_asoc_pdata,
 428         },
 429 };
 430
 431 /******************************************************************************
 432  * HDD
 433  ******************************************************************************/
 434 static struct platform_device palmld_hdd = {
 435         .name   = "pata_palmld",
 436         .id     = -1,
 437 };
 438
 439 /******************************************************************************
 440  * Framebuffer
 441  ******************************************************************************/
 442 static struct pxafb_mode_info palmld_lcd_modes[] = {
 443 {
 444         .pixclock       = 57692,
 445         .xres           = 320,
 446         .yres           = 480,
 447         .bpp            = 16,
 448
 449         .left_margin    = 32,
 450         .right_margin   = 1,
 451         .upper_margin   = 7,
 452         .lower_margin   = 1,
 453
 454         .hsync_len      = 4,
 455         .vsync_len      = 1,
 456 },
 457 };
 458
 459 static struct pxafb_mach_info palmld_lcd_screen = {
 460         .modes          = palmld_lcd_modes,
 461         .num_modes      = ARRAY_SIZE(palmld_lcd_modes),
 462         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 463 };
 464
 465 /******************************************************************************
 466  * Power management - standby
 467  ******************************************************************************/
 468 static void __init palmld_pm_init(void)
 469 {
 470         static u32 resume[] = {
 471                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 472                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 473                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 474         };
 475
 476         /* copy the bootloader */
 477         memcpy(phys_to_virt(PALMLD_STR_BASE), resume, sizeof(resume));
 478 }
 479
 480 /******************************************************************************
 481  * Machine init
 482  ******************************************************************************/
 483 static struct platform_device *devices[] __initdata = {
 484 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 485         &palmld_pxa_keys,
 486 #endif
 487         &palmld_backlight,
 488         &palmld_leds,
 489         &power_supply,
 490         &palmld_asoc,
 491         &palmld_hdd,
 492 };
 493
 494 static struct map_desc palmld_io_desc[] __initdata = {
 495 {
 496         .virtual        = PALMLD_IDE_VIRT,
 497         .pfn            = __phys_to_pfn(PALMLD_IDE_PHYS),
 498         .length         = PALMLD_IDE_SIZE,
 499         .type           = MT_DEVICE
 500 },
 501 {
 502         .virtual        = PALMLD_USB_VIRT,
 503         .pfn            = __phys_to_pfn(PALMLD_USB_PHYS),
 504         .length         = PALMLD_USB_SIZE,
 505         .type           = MT_DEVICE
 506 },
 507 };
 508
 509 static void __init palmld_map_io(void)
 510 {
 511         pxa_map_io();
 512         iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
 513 }
 514
 515 static void __init palmld_init(void)
 516 {
 517         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
 518
 519         palmld_pm_init();
 520         set_pxa_fb_info(&palmld_lcd_screen);
 521         pxa_set_mci_info(&palmld_mci_platform_data);
 522         pxa_set_ac97_info(&palmld_ac97_pdata);
 523         pxa_set_ficp_info(&palmld_ficp_platform_data);
 524         pxa_set_keypad_info(&palmld_keypad_platform_data);
 525         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 526
 527         platform_add_devices(devices, ARRAY_SIZE(devices));
 528 }
 529
 530 MACHINE_START(PALMLD, "Palm LifeDrive")
 531         .phys_io        = PALMLD_PHYS_IO_START,
 532         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 533         .boot_params    = 0xa0000100,
 534         .map_io         = palmld_map_io,
 535         .init_irq       = pxa27x_init_irq,
 536         .timer          = &pxa_timer,
 537         .init_machine   = palmld_init
 538 MACHINE_END