linux/arch/arm/mach-pxa/palmte2.c
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   1/*
   2 * Hardware definitions for Palm Tungsten|E2
   3 *
   4 * Author:
   5 *      Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
   6 *
   7 * Rewrite for mainline:
   8 *      Marek Vasut <marek.vasut@gmail.com>
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 *
  14 * (find more info at www.hackndev.com)
  15 *
  16 */
  17
  18#include <linux/platform_device.h>
  19#include <linux/delay.h>
  20#include <linux/irq.h>
  21#include <linux/gpio_keys.h>
  22#include <linux/input.h>
  23#include <linux/pda_power.h>
  24#include <linux/pwm_backlight.h>
  25#include <linux/gpio.h>
  26#include <linux/wm97xx_batt.h>
  27#include <linux/power_supply.h>
  28#include <linux/usb/gpio_vbus.h>
  29
  30#include <asm/mach-types.h>
  31#include <asm/mach/arch.h>
  32#include <asm/mach/map.h>
  33
  34#include <mach/audio.h>
  35#include <mach/palmte2.h>
  36#include <mach/mmc.h>
  37#include <mach/pxafb.h>
  38#include <mach/mfp-pxa25x.h>
  39#include <mach/irda.h>
  40#include <mach/udc.h>
  41#include <mach/palmasoc.h>
  42
  43#include "generic.h"
  44#include "devices.h"
  45
  46/******************************************************************************
  47 * Pin configuration
  48 ******************************************************************************/
  49static unsigned long palmte2_pin_config[] __initdata = {
  50        /* MMC */
  51        GPIO6_MMC_CLK,
  52        GPIO8_MMC_CS0,
  53        GPIO10_GPIO,    /* SD detect */
  54        GPIO55_GPIO,    /* SD power */
  55        GPIO51_GPIO,    /* SD r/o switch */
  56
  57        /* AC97 */
  58        GPIO28_AC97_BITCLK,
  59        GPIO29_AC97_SDATA_IN_0,
  60        GPIO30_AC97_SDATA_OUT,
  61        GPIO31_AC97_SYNC,
  62
  63        /* PWM */
  64        GPIO16_PWM0_OUT,
  65
  66        /* USB */
  67        GPIO15_GPIO,    /* usb detect */
  68        GPIO53_GPIO,    /* usb power */
  69
  70        /* IrDA */
  71        GPIO48_GPIO,    /* ir disable */
  72        GPIO46_FICP_RXD,
  73        GPIO47_FICP_TXD,
  74
  75        /* LCD */
  76        GPIO58_LCD_LDD_0,
  77        GPIO59_LCD_LDD_1,
  78        GPIO60_LCD_LDD_2,
  79        GPIO61_LCD_LDD_3,
  80        GPIO62_LCD_LDD_4,
  81        GPIO63_LCD_LDD_5,
  82        GPIO64_LCD_LDD_6,
  83        GPIO65_LCD_LDD_7,
  84        GPIO66_LCD_LDD_8,
  85        GPIO67_LCD_LDD_9,
  86        GPIO68_LCD_LDD_10,
  87        GPIO69_LCD_LDD_11,
  88        GPIO70_LCD_LDD_12,
  89        GPIO71_LCD_LDD_13,
  90        GPIO72_LCD_LDD_14,
  91        GPIO73_LCD_LDD_15,
  92        GPIO74_LCD_FCLK,
  93        GPIO75_LCD_LCLK,
  94        GPIO76_LCD_PCLK,
  95        GPIO77_LCD_BIAS,
  96
  97        /* GPIO KEYS */
  98        GPIO5_GPIO,     /* notes */
  99        GPIO7_GPIO,     /* tasks */
 100        GPIO11_GPIO,    /* calendar */
 101        GPIO13_GPIO,    /* contacts */
 102        GPIO14_GPIO,    /* center */
 103        GPIO19_GPIO,    /* left */
 104        GPIO20_GPIO,    /* right */
 105        GPIO21_GPIO,    /* down */
 106        GPIO22_GPIO,    /* up */
 107
 108        /* MISC */
 109        GPIO1_RST,      /* reset */
 110        GPIO4_GPIO,     /* Hotsync button */
 111        GPIO9_GPIO,     /* power detect */
 112        GPIO15_GPIO,    /* earphone detect */
 113        GPIO37_GPIO,    /* LCD power */
 114        GPIO56_GPIO,    /* Backlight power */
 115};
 116
 117/******************************************************************************
 118 * SD/MMC card controller
 119 ******************************************************************************/
 120static struct pxamci_platform_data palmte2_mci_platform_data = {
 121        .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 122        .gpio_card_detect       = GPIO_NR_PALMTE2_SD_DETECT_N,
 123        .gpio_card_ro           = GPIO_NR_PALMTE2_SD_READONLY,
 124        .gpio_power             = GPIO_NR_PALMTE2_SD_POWER,
 125};
 126
 127/******************************************************************************
 128 * GPIO keys
 129 ******************************************************************************/
 130static struct gpio_keys_button palmte2_pxa_buttons[] = {
 131        {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 132        {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 133        {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 134        {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 135        {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 136        {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 137        {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 138        {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 139        {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 140};
 141
 142static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 143        .buttons        = palmte2_pxa_buttons,
 144        .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 145};
 146
 147static struct platform_device palmte2_pxa_keys = {
 148        .name   = "gpio-keys",
 149        .id     = -1,
 150        .dev    = {
 151                .platform_data = &palmte2_pxa_keys_data,
 152        },
 153};
 154
 155/******************************************************************************
 156 * Backlight
 157 ******************************************************************************/
 158static int palmte2_backlight_init(struct device *dev)
 159{
 160        int ret;
 161
 162        ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
 163        if (ret)
 164                goto err;
 165        ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
 166        if (ret)
 167                goto err2;
 168        ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
 169        if (ret)
 170                goto err2;
 171        ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
 172        if (ret)
 173                goto err3;
 174
 175        return 0;
 176err3:
 177        gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 178err2:
 179        gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 180err:
 181        return ret;
 182}
 183
 184static int palmte2_backlight_notify(int brightness)
 185{
 186        gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 187        gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 188        return brightness;
 189}
 190
 191static void palmte2_backlight_exit(struct device *dev)
 192{
 193        gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 194        gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 195}
 196
 197static struct platform_pwm_backlight_data palmte2_backlight_data = {
 198        .pwm_id         = 0,
 199        .max_brightness = PALMTE2_MAX_INTENSITY,
 200        .dft_brightness = PALMTE2_MAX_INTENSITY,
 201        .pwm_period_ns  = PALMTE2_PERIOD_NS,
 202        .init           = palmte2_backlight_init,
 203        .notify         = palmte2_backlight_notify,
 204        .exit           = palmte2_backlight_exit,
 205};
 206
 207static struct platform_device palmte2_backlight = {
 208        .name   = "pwm-backlight",
 209        .dev    = {
 210                .parent         = &pxa25x_device_pwm0.dev,
 211                .platform_data  = &palmte2_backlight_data,
 212        },
 213};
 214
 215/******************************************************************************
 216 * IrDA
 217 ******************************************************************************/
 218static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 219        .gpio_pwdown            = GPIO_NR_PALMTE2_IR_DISABLE,
 220        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 221};
 222
 223/******************************************************************************
 224 * UDC
 225 ******************************************************************************/
 226static struct gpio_vbus_mach_info palmte2_udc_info = {
 227        .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 228        .gpio_vbus_inverted     = 1,
 229        .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 230};
 231
 232static struct platform_device palmte2_gpio_vbus = {
 233        .name   = "gpio-vbus",
 234        .id     = -1,
 235        .dev    = {
 236                .platform_data  = &palmte2_udc_info,
 237        },
 238};
 239
 240/******************************************************************************
 241 * Power supply
 242 ******************************************************************************/
 243static int power_supply_init(struct device *dev)
 244{
 245        int ret;
 246
 247        ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 248        if (ret)
 249                goto err1;
 250        ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 251        if (ret)
 252                goto err2;
 253
 254        return 0;
 255
 256err2:
 257        gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 258err1:
 259        return ret;
 260}
 261
 262static int palmte2_is_ac_online(void)
 263{
 264        return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 265}
 266
 267static void power_supply_exit(struct device *dev)
 268{
 269        gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 270}
 271
 272static char *palmte2_supplicants[] = {
 273        "main-battery",
 274};
 275
 276static struct pda_power_pdata power_supply_info = {
 277        .init            = power_supply_init,
 278        .is_ac_online    = palmte2_is_ac_online,
 279        .exit            = power_supply_exit,
 280        .supplied_to     = palmte2_supplicants,
 281        .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 282};
 283
 284static struct platform_device power_supply = {
 285        .name = "pda-power",
 286        .id   = -1,
 287        .dev  = {
 288                .platform_data = &power_supply_info,
 289        },
 290};
 291
 292/******************************************************************************
 293 * WM97xx battery
 294 ******************************************************************************/
 295static struct wm97xx_batt_info wm97xx_batt_pdata = {
 296        .batt_aux       = WM97XX_AUX_ID3,
 297        .temp_aux       = WM97XX_AUX_ID2,
 298        .charge_gpio    = -1,
 299        .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 300        .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 301        .batt_mult      = 1000,
 302        .batt_div       = 414,
 303        .temp_mult      = 1,
 304        .temp_div       = 1,
 305        .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 306        .batt_name      = "main-batt",
 307};
 308
 309/******************************************************************************
 310 * aSoC audio
 311 ******************************************************************************/
 312static struct palm27x_asoc_info palmte2_asoc_pdata = {
 313        .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 314};
 315
 316static struct platform_device palmte2_asoc = {
 317        .name = "palm27x-asoc",
 318        .id   = -1,
 319        .dev  = {
 320                .platform_data = &palmte2_asoc_pdata,
 321        },
 322};
 323
 324/******************************************************************************
 325 * Framebuffer
 326 ******************************************************************************/
 327static struct pxafb_mode_info palmte2_lcd_modes[] = {
 328{
 329        .pixclock       = 77757,
 330        .xres           = 320,
 331        .yres           = 320,
 332        .bpp            = 16,
 333
 334        .left_margin    = 28,
 335        .right_margin   = 7,
 336        .upper_margin   = 7,
 337        .lower_margin   = 5,
 338
 339        .hsync_len      = 4,
 340        .vsync_len      = 1,
 341},
 342};
 343
 344static struct pxafb_mach_info palmte2_lcd_screen = {
 345        .modes          = palmte2_lcd_modes,
 346        .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 347        .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 348};
 349
 350/******************************************************************************
 351 * Machine init
 352 ******************************************************************************/
 353static struct platform_device *devices[] __initdata = {
 354#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 355        &palmte2_pxa_keys,
 356#endif
 357        &palmte2_backlight,
 358        &power_supply,
 359        &palmte2_asoc,
 360        &palmte2_gpio_vbus,
 361};
 362
 363/* setup udc GPIOs initial state */
 364static void __init palmte2_udc_init(void)
 365{
 366        if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 367                gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 368                gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 369        }
 370}
 371
 372static void __init palmte2_init(void)
 373{
 374        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 375
 376        set_pxa_fb_info(&palmte2_lcd_screen);
 377        pxa_set_mci_info(&palmte2_mci_platform_data);
 378        palmte2_udc_init();
 379        pxa_set_ac97_info(NULL);
 380        pxa_set_ficp_info(&palmte2_ficp_platform_data);
 381        wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 382
 383        platform_add_devices(devices, ARRAY_SIZE(devices));
 384}
 385
 386MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 387        .phys_io        = 0x40000000,
 388        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 389        .boot_params    = 0xa0000100,
 390        .map_io         = pxa_map_io,
 391        .init_irq       = pxa25x_init_irq,
 392        .timer          = &pxa_timer,
 393        .init_machine   = palmte2_init
 394MACHINE_END
 395