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
  68         /* IrDA */
  69         GPIO40_GPIO,    /* ir disable */
  70         GPIO46_FICP_RXD,
  71         GPIO47_FICP_TXD,
  72
  73         /* PWM */
  74         GPIO16_PWM0_OUT,
  75
  76         /* USB */
  77         GPIO13_GPIO,    /* usb detect */
  78         GPIO95_GPIO,    /* usb power */
  79
  80         /* PCMCIA */
  81         GPIO48_nPOE,
  82         GPIO49_nPWE,
  83         GPIO50_nPIOR,
  84         GPIO51_nPIOW,
  85         GPIO85_nPCE_1,
  86         GPIO54_nPCE_2,
  87         GPIO79_PSKTSEL,
  88         GPIO55_nPREG,
  89         GPIO56_nPWAIT,
  90         GPIO57_nIOIS16,
  91         GPIO94_GPIO,    /* wifi power 1 */
  92         GPIO108_GPIO,   /* wifi power 2 */
  93         GPIO116_GPIO,   /* wifi ready */
  94
  95         /* MATRIX KEYPAD */
  96         GPIO100_KP_MKIN_0,
  97         GPIO101_KP_MKIN_1,
  98         GPIO102_KP_MKIN_2,
  99         GPIO97_KP_MKIN_3,
 100         GPIO103_KP_MKOUT_0,
 101         GPIO104_KP_MKOUT_1,
 102         GPIO105_KP_MKOUT_2,
 103
 104         /* LCD */
 105         GPIO58_LCD_LDD_0,
 106         GPIO59_LCD_LDD_1,
 107         GPIO60_LCD_LDD_2,
 108         GPIO61_LCD_LDD_3,
 109         GPIO62_LCD_LDD_4,
 110         GPIO63_LCD_LDD_5,
 111         GPIO64_LCD_LDD_6,
 112         GPIO65_LCD_LDD_7,
 113         GPIO66_LCD_LDD_8,
 114         GPIO67_LCD_LDD_9,
 115         GPIO68_LCD_LDD_10,
 116         GPIO69_LCD_LDD_11,
 117         GPIO70_LCD_LDD_12,
 118         GPIO71_LCD_LDD_13,
 119         GPIO72_LCD_LDD_14,
 120         GPIO73_LCD_LDD_15,
 121         GPIO74_LCD_FCLK,
 122         GPIO75_LCD_LCLK,
 123         GPIO76_LCD_PCLK,
 124         GPIO77_LCD_BIAS,
 125
 126         /* MISC. */
 127         GPIO10_GPIO,    /* hotsync button */
 128         GPIO12_GPIO,    /* power detect */
 129         GPIO107_GPIO,   /* earphone detect */
 130 };
 131
 132 /******************************************************************************
 133  * SD/MMC card controller
 134  ******************************************************************************/
 135 static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
 136                                 void *data)
 137 {
 138         int err = 0;
 139
 140         /* Setup an interrupt for detecting card insert/remove events */
 141         err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ");
 142         if (err)
 143                 goto err;
 144         err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
 145         if (err)
 146                 goto err2;
 147         err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
 148                         palmtx_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
 149                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 150                         "SD/MMC card detect", data);
 151         if (err) {
 152                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
 153                                 __func__);
 154                 goto err2;
 155         }
 156
 157         err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
 158         if (err)
 159                 goto err3;
 160         err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
 161         if (err)
 162                 goto err4;
 163
 164         err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
 165         if (err)
 166                 goto err4;
 167         err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY);
 168         if (err)
 169                 goto err5;
 170
 171         printk(KERN_DEBUG "%s: irq registered\n", __func__);
 172
 173         return 0;
 174
 175 err5:
 176         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 177 err4:
 178         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 179 err3:
 180         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 181 err2:
 182         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 183 err:
 184         return err;
 185 }
 186
 187 static void palmtx_mci_exit(struct device *dev, void *data)
 188 {
 189         gpio_free(GPIO_NR_PALMTX_SD_READONLY);
 190         gpio_free(GPIO_NR_PALMTX_SD_POWER);
 191         free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
 192         gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
 193 }
 194
 195 static void palmtx_mci_power(struct device *dev, unsigned int vdd)
 196 {
 197         struct pxamci_platform_data *p_d = dev->platform_data;
 198         gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
 199 }
 200
 201 static int palmtx_mci_get_ro(struct device *dev)
 202 {
 203         return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
 204 }
 205
 206 static struct pxamci_platform_data palmtx_mci_platform_data = {
 207         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
 208         .setpower       = palmtx_mci_power,
 209         .get_ro         = palmtx_mci_get_ro,
 210         .init           = palmtx_mci_init,
 211         .exit           = palmtx_mci_exit,
 212 };
 213
 214 /******************************************************************************
 215  * GPIO keyboard
 216  ******************************************************************************/
 217 static unsigned int palmtx_matrix_keys[] = {
 218         KEY(0, 0, KEY_POWER),
 219         KEY(0, 1, KEY_F1),
 220         KEY(0, 2, KEY_ENTER),
 221
 222         KEY(1, 0, KEY_F2),
 223         KEY(1, 1, KEY_F3),
 224         KEY(1, 2, KEY_F4),
 225
 226         KEY(2, 0, KEY_UP),
 227         KEY(2, 2, KEY_DOWN),
 228
 229         KEY(3, 0, KEY_RIGHT),
 230         KEY(3, 2, KEY_LEFT),
 231 };
 232
 233 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 234         .matrix_key_rows        = 4,
 235         .matrix_key_cols        = 3,
 236         .matrix_key_map         = palmtx_matrix_keys,
 237         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 238
 239         .debounce_interval      = 30,
 240 };
 241
 242 /******************************************************************************
 243  * GPIO keys
 244  ******************************************************************************/
 245 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 246         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 247 };
 248
 249 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 250         .buttons        = palmtx_pxa_buttons,
 251         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 252 };
 253
 254 static struct platform_device palmtx_pxa_keys = {
 255         .name   = "gpio-keys",
 256         .id     = -1,
 257         .dev    = {
 258                 .platform_data = &palmtx_pxa_keys_data,
 259         },
 260 };
 261
 262 /******************************************************************************
 263  * Backlight
 264  ******************************************************************************/
 265 static int palmtx_backlight_init(struct device *dev)
 266 {
 267         int ret;
 268
 269         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 270         if (ret)
 271                 goto err;
 272         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 273         if (ret)
 274                 goto err2;
 275         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 276         if (ret)
 277                 goto err2;
 278         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 279         if (ret)
 280                 goto err3;
 281
 282         return 0;
 283 err3:
 284         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 285 err2:
 286         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 287 err:
 288         return ret;
 289 }
 290
 291 static int palmtx_backlight_notify(int brightness)
 292 {
 293         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 294         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 295         return brightness;
 296 }
 297
 298 static void palmtx_backlight_exit(struct device *dev)
 299 {
 300         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 301         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 302 }
 303
 304 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 305         .pwm_id         = 0,
 306         .max_brightness = PALMTX_MAX_INTENSITY,
 307         .dft_brightness = PALMTX_MAX_INTENSITY,
 308         .pwm_period_ns  = PALMTX_PERIOD_NS,
 309         .init           = palmtx_backlight_init,
 310         .notify         = palmtx_backlight_notify,
 311         .exit           = palmtx_backlight_exit,
 312 };
 313
 314 static struct platform_device palmtx_backlight = {
 315         .name   = "pwm-backlight",
 316         .dev    = {
 317                 .parent         = &pxa27x_device_pwm0.dev,
 318                 .platform_data  = &palmtx_backlight_data,
 319         },
 320 };
 321
 322 /******************************************************************************
 323  * IrDA
 324  ******************************************************************************/
 325 static int palmtx_irda_startup(struct device *dev)
 326 {
 327         int err;
 328         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 329         if (err)
 330                 goto err;
 331         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 332         if (err)
 333                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 334 err:
 335         return err;
 336 }
 337
 338 static void palmtx_irda_shutdown(struct device *dev)
 339 {
 340         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 341 }
 342
 343 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 344 {
 345         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 346         pxa2xx_transceiver_mode(dev, mode);
 347 }
 348
 349 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 350         .startup                = palmtx_irda_startup,
 351         .shutdown               = palmtx_irda_shutdown,
 352         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 353         .transceiver_mode       = palmtx_irda_transceiver_mode,
 354 };
 355
 356 /******************************************************************************
 357  * UDC
 358  ******************************************************************************/
 359 static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
 360         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 361         .gpio_vbus_inverted     = 1,
 362         .gpio_pullup            = GPIO_NR_PALMTX_USB_POWER,
 363         .gpio_pullup_inverted   = 0,
 364 };
 365
 366 /******************************************************************************
 367  * Power supply
 368  ******************************************************************************/
 369 static int power_supply_init(struct device *dev)
 370 {
 371         int ret;
 372
 373         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 374         if (ret)
 375                 goto err1;
 376         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 377         if (ret)
 378                 goto err2;
 379
 380         return 0;
 381
 382 err2:
 383         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 384 err1:
 385         return ret;
 386 }
 387
 388 static int palmtx_is_ac_online(void)
 389 {
 390         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 391 }
 392
 393 static void power_supply_exit(struct device *dev)
 394 {
 395         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 396 }
 397
 398 static char *palmtx_supplicants[] = {
 399         "main-battery",
 400 };
 401
 402 static struct pda_power_pdata power_supply_info = {
 403         .init            = power_supply_init,
 404         .is_ac_online    = palmtx_is_ac_online,
 405         .exit            = power_supply_exit,
 406         .supplied_to     = palmtx_supplicants,
 407         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 408 };
 409
 410 static struct platform_device power_supply = {
 411         .name = "pda-power",
 412         .id   = -1,
 413         .dev  = {
 414                 .platform_data = &power_supply_info,
 415         },
 416 };
 417
 418 /******************************************************************************
 419  * WM97xx battery
 420  ******************************************************************************/
 421 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 422         .batt_aux       = WM97XX_AUX_ID3,
 423         .temp_aux       = WM97XX_AUX_ID2,
 424         .charge_gpio    = -1,
 425         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 426         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 427         .batt_mult      = 1000,
 428         .batt_div       = 414,
 429         .temp_mult      = 1,
 430         .temp_div       = 1,
 431         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 432         .batt_name      = "main-batt",
 433 };
 434
 435 /******************************************************************************
 436  * Framebuffer
 437  ******************************************************************************/
 438 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 439 {
 440         .pixclock       = 57692,
 441         .xres           = 320,
 442         .yres           = 480,
 443         .bpp            = 16,
 444
 445         .left_margin    = 32,
 446         .right_margin   = 1,
 447         .upper_margin   = 7,
 448         .lower_margin   = 1,
 449
 450         .hsync_len      = 4,
 451         .vsync_len      = 1,
 452 },
 453 };
 454
 455 static struct pxafb_mach_info palmtx_lcd_screen = {
 456         .modes          = palmtx_lcd_modes,
 457         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 458         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 459 };
 460
 461 /******************************************************************************
 462  * Machine init
 463  ******************************************************************************/
 464 static struct platform_device *devices[] __initdata = {
 465 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 466         &palmtx_pxa_keys,
 467 #endif
 468         &palmtx_backlight,
 469         &power_supply,
 470 };
 471
 472 static struct map_desc palmtx_io_desc[] __initdata = {
 473 {
 474         .virtual        = PALMTX_PCMCIA_VIRT,
 475         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 476         .length         = PALMTX_PCMCIA_SIZE,
 477         .type           = MT_DEVICE
 478 },
 479 };
 480
 481 static void __init palmtx_map_io(void)
 482 {
 483         pxa_map_io();
 484         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 485 }
 486
 487 /* setup udc GPIOs initial state */
 488 static void __init palmtx_udc_init(void)
 489 {
 490         if (!gpio_request(GPIO_NR_PALMTX_USB_POWER, "UDC Vbus")) {
 491                 gpio_direction_output(GPIO_NR_PALMTX_USB_POWER, 1);
 492                 gpio_free(GPIO_NR_PALMTX_USB_POWER);
 493         }
 494 }
 495
 496
 497 static void __init palmtx_init(void)
 498 {
 499         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 500
 501         set_pxa_fb_info(&palmtx_lcd_screen);
 502         pxa_set_mci_info(&palmtx_mci_platform_data);
 503         palmtx_udc_init();
 504         pxa_set_udc_info(&palmtx_udc_info);
 505         pxa_set_ac97_info(NULL);
 506         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 507         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 508         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 509
 510         platform_add_devices(devices, ARRAY_SIZE(devices));
 511 }
 512
 513 MACHINE_START(PALMTX, "Palm T|X")
 514         .phys_io        = PALMTX_PHYS_IO_START,
 515         .io_pg_offst    = io_p2v(0x40000000),
 516         .boot_params    = 0xa0000100,
 517         .map_io         = palmtx_map_io,
 518         .init_irq       = pxa27x_init_irq,
 519         .timer          = &pxa_timer,
 520         .init_machine   = palmtx_init
 521 MACHINE_END