linux/arch/arm/mach-pxa/palmt5.c
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   1/*
   2 * Hardware definitions for Palm Tungsten|T5
   3 *
   4 * Author:      Marek Vasut <marek.vasut@gmail.com>
   5 *
   6 * Based on work of:
   7 *              Ales Snuparek <snuparek@atlas.cz>
   8 *              Justin Kendrick <twilightsentry@gmail.com>
   9 *              RichardT5 <richard_t5@users.sourceforge.net>
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of the GNU General Public License version 2 as
  13 * published by the Free Software Foundation.
  14 *
  15 * (find more info at www.hackndev.com)
  16 *
  17 */
  18
  19#include <linux/platform_device.h>
  20#include <linux/delay.h>
  21#include <linux/irq.h>
  22#include <linux/gpio_keys.h>
  23#include <linux/input.h>
  24#include <linux/pda_power.h>
  25#include <linux/pwm_backlight.h>
  26#include <linux/gpio.h>
  27#include <linux/wm97xx_batt.h>
  28#include <linux/power_supply.h>
  29#include <linux/usb/gpio_vbus.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/palmt5.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#include <mach/palmasoc.h>
  44
  45#include "generic.h"
  46#include "devices.h"
  47
  48/******************************************************************************
  49 * Pin configuration
  50 ******************************************************************************/
  51static unsigned long palmt5_pin_config[] __initdata = {
  52        /* MMC */
  53        GPIO32_MMC_CLK,
  54        GPIO92_MMC_DAT_0,
  55        GPIO109_MMC_DAT_1,
  56        GPIO110_MMC_DAT_2,
  57        GPIO111_MMC_DAT_3,
  58        GPIO112_MMC_CMD,
  59        GPIO14_GPIO,    /* SD detect */
  60        GPIO114_GPIO,   /* SD power */
  61        GPIO115_GPIO,   /* SD r/o switch */
  62
  63        /* AC97 */
  64        GPIO28_AC97_BITCLK,
  65        GPIO29_AC97_SDATA_IN_0,
  66        GPIO30_AC97_SDATA_OUT,
  67        GPIO31_AC97_SYNC,
  68        GPIO89_AC97_SYSCLK,
  69        GPIO95_AC97_nRESET,
  70
  71        /* IrDA */
  72        GPIO40_GPIO,    /* ir disable */
  73        GPIO46_FICP_RXD,
  74        GPIO47_FICP_TXD,
  75
  76        /* USB */
  77        GPIO15_GPIO,    /* usb detect */
  78        GPIO93_GPIO,    /* usb power */
  79
  80        /* MATRIX KEYPAD */
  81        GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  82        GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  83        GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  84        GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  85        GPIO103_KP_MKOUT_0,
  86        GPIO104_KP_MKOUT_1,
  87        GPIO105_KP_MKOUT_2,
  88
  89        /* LCD */
  90        GPIO58_LCD_LDD_0,
  91        GPIO59_LCD_LDD_1,
  92        GPIO60_LCD_LDD_2,
  93        GPIO61_LCD_LDD_3,
  94        GPIO62_LCD_LDD_4,
  95        GPIO63_LCD_LDD_5,
  96        GPIO64_LCD_LDD_6,
  97        GPIO65_LCD_LDD_7,
  98        GPIO66_LCD_LDD_8,
  99        GPIO67_LCD_LDD_9,
 100        GPIO68_LCD_LDD_10,
 101        GPIO69_LCD_LDD_11,
 102        GPIO70_LCD_LDD_12,
 103        GPIO71_LCD_LDD_13,
 104        GPIO72_LCD_LDD_14,
 105        GPIO73_LCD_LDD_15,
 106        GPIO74_LCD_FCLK,
 107        GPIO75_LCD_LCLK,
 108        GPIO76_LCD_PCLK,
 109        GPIO77_LCD_BIAS,
 110
 111        /* PWM */
 112        GPIO16_PWM0_OUT,
 113
 114        /* FFUART */
 115        GPIO34_FFUART_RXD,
 116        GPIO39_FFUART_TXD,
 117
 118        /* MISC */
 119        GPIO10_GPIO,    /* hotsync button */
 120        GPIO90_GPIO,    /* power detect */
 121        GPIO107_GPIO,   /* earphone detect */
 122};
 123
 124/******************************************************************************
 125 * SD/MMC card controller
 126 ******************************************************************************/
 127static struct pxamci_platform_data palmt5_mci_platform_data = {
 128        .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 129        .gpio_card_detect       = GPIO_NR_PALMT5_SD_DETECT_N,
 130        .gpio_card_ro           = GPIO_NR_PALMT5_SD_READONLY,
 131        .gpio_power             = GPIO_NR_PALMT5_SD_POWER,
 132        .detect_delay           = 20,
 133};
 134
 135/******************************************************************************
 136 * GPIO keyboard
 137 ******************************************************************************/
 138static unsigned int palmt5_matrix_keys[] = {
 139        KEY(0, 0, KEY_POWER),
 140        KEY(0, 1, KEY_F1),
 141        KEY(0, 2, KEY_ENTER),
 142
 143        KEY(1, 0, KEY_F2),
 144        KEY(1, 1, KEY_F3),
 145        KEY(1, 2, KEY_F4),
 146
 147        KEY(2, 0, KEY_UP),
 148        KEY(2, 2, KEY_DOWN),
 149
 150        KEY(3, 0, KEY_RIGHT),
 151        KEY(3, 2, KEY_LEFT),
 152};
 153
 154static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 155        .matrix_key_rows        = 4,
 156        .matrix_key_cols        = 3,
 157        .matrix_key_map         = palmt5_matrix_keys,
 158        .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 159
 160        .debounce_interval      = 30,
 161};
 162
 163/******************************************************************************
 164 * GPIO keys
 165 ******************************************************************************/
 166static struct gpio_keys_button palmt5_pxa_buttons[] = {
 167        {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 168};
 169
 170static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 171        .buttons        = palmt5_pxa_buttons,
 172        .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 173};
 174
 175static struct platform_device palmt5_pxa_keys = {
 176        .name   = "gpio-keys",
 177        .id     = -1,
 178        .dev    = {
 179                .platform_data = &palmt5_pxa_keys_data,
 180        },
 181};
 182
 183/******************************************************************************
 184 * Backlight
 185 ******************************************************************************/
 186static int palmt5_backlight_init(struct device *dev)
 187{
 188        int ret;
 189
 190        ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 191        if (ret)
 192                goto err;
 193        ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 194        if (ret)
 195                goto err2;
 196        ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 197        if (ret)
 198                goto err2;
 199        ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 200        if (ret)
 201                goto err3;
 202
 203        return 0;
 204err3:
 205        gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 206err2:
 207        gpio_free(GPIO_NR_PALMT5_BL_POWER);
 208err:
 209        return ret;
 210}
 211
 212static int palmt5_backlight_notify(int brightness)
 213{
 214        gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 215        gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 216        return brightness;
 217}
 218
 219static void palmt5_backlight_exit(struct device *dev)
 220{
 221        gpio_free(GPIO_NR_PALMT5_BL_POWER);
 222        gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 223}
 224
 225static struct platform_pwm_backlight_data palmt5_backlight_data = {
 226        .pwm_id         = 0,
 227        .max_brightness = PALMT5_MAX_INTENSITY,
 228        .dft_brightness = PALMT5_MAX_INTENSITY,
 229        .pwm_period_ns  = PALMT5_PERIOD_NS,
 230        .init           = palmt5_backlight_init,
 231        .notify         = palmt5_backlight_notify,
 232        .exit           = palmt5_backlight_exit,
 233};
 234
 235static struct platform_device palmt5_backlight = {
 236        .name   = "pwm-backlight",
 237        .dev    = {
 238                .parent         = &pxa27x_device_pwm0.dev,
 239                .platform_data  = &palmt5_backlight_data,
 240        },
 241};
 242
 243/******************************************************************************
 244 * IrDA
 245 ******************************************************************************/
 246static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 247        .gpio_pwdown            = GPIO_NR_PALMT5_IR_DISABLE,
 248        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 249};
 250
 251/******************************************************************************
 252 * UDC
 253 ******************************************************************************/
 254static struct gpio_vbus_mach_info palmt5_udc_info = {
 255        .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 256        .gpio_vbus_inverted     = 1,
 257        .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 258};
 259
 260static struct platform_device palmt5_gpio_vbus = {
 261        .name   = "gpio-vbus",
 262        .id     = -1,
 263        .dev    = {
 264                .platform_data  = &palmt5_udc_info,
 265        },
 266};
 267
 268/******************************************************************************
 269 * Power supply
 270 ******************************************************************************/
 271static int power_supply_init(struct device *dev)
 272{
 273        int ret;
 274
 275        ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 276        if (ret)
 277                goto err1;
 278        ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 279        if (ret)
 280                goto err2;
 281
 282        return 0;
 283err2:
 284        gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 285err1:
 286        return ret;
 287}
 288
 289static int palmt5_is_ac_online(void)
 290{
 291        return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 292}
 293
 294static void power_supply_exit(struct device *dev)
 295{
 296        gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 297}
 298
 299static char *palmt5_supplicants[] = {
 300        "main-battery",
 301};
 302
 303static struct pda_power_pdata power_supply_info = {
 304        .init            = power_supply_init,
 305        .is_ac_online    = palmt5_is_ac_online,
 306        .exit            = power_supply_exit,
 307        .supplied_to     = palmt5_supplicants,
 308        .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 309};
 310
 311static struct platform_device power_supply = {
 312        .name = "pda-power",
 313        .id   = -1,
 314        .dev  = {
 315                .platform_data = &power_supply_info,
 316        },
 317};
 318
 319/******************************************************************************
 320 * WM97xx battery
 321 ******************************************************************************/
 322static struct wm97xx_batt_info wm97xx_batt_pdata = {
 323        .batt_aux       = WM97XX_AUX_ID3,
 324        .temp_aux       = WM97XX_AUX_ID2,
 325        .charge_gpio    = -1,
 326        .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 327        .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 328        .batt_mult      = 1000,
 329        .batt_div       = 414,
 330        .temp_mult      = 1,
 331        .temp_div       = 1,
 332        .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 333        .batt_name      = "main-batt",
 334};
 335
 336/******************************************************************************
 337 * aSoC audio
 338 ******************************************************************************/
 339static struct palm27x_asoc_info palmt5_asoc_pdata = {
 340        .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 341};
 342
 343static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 344        .reset_gpio     = 95,
 345};
 346
 347static struct platform_device palmt5_asoc = {
 348        .name = "palm27x-asoc",
 349        .id   = -1,
 350        .dev  = {
 351                .platform_data = &palmt5_asoc_pdata,
 352        },
 353};
 354
 355/******************************************************************************
 356 * Framebuffer
 357 ******************************************************************************/
 358static struct pxafb_mode_info palmt5_lcd_modes[] = {
 359{
 360        .pixclock       = 57692,
 361        .xres           = 320,
 362        .yres           = 480,
 363        .bpp            = 16,
 364
 365        .left_margin    = 32,
 366        .right_margin   = 1,
 367        .upper_margin   = 7,
 368        .lower_margin   = 1,
 369
 370        .hsync_len      = 4,
 371        .vsync_len      = 1,
 372},
 373};
 374
 375static struct pxafb_mach_info palmt5_lcd_screen = {
 376        .modes          = palmt5_lcd_modes,
 377        .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 378        .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 379};
 380
 381/******************************************************************************
 382 * Power management - standby
 383 ******************************************************************************/
 384static void __init palmt5_pm_init(void)
 385{
 386        static u32 resume[] = {
 387                0xe3a00101,     /* mov  r0,     #0x40000000 */
 388                0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 389                0xe590f008,     /* ldr  pc, [r0, #0x08] */
 390        };
 391
 392        /* copy the bootloader */
 393        memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 394}
 395
 396/******************************************************************************
 397 * Machine init
 398 ******************************************************************************/
 399static struct platform_device *devices[] __initdata = {
 400#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 401        &palmt5_pxa_keys,
 402#endif
 403        &palmt5_backlight,
 404        &power_supply,
 405        &palmt5_asoc,
 406        &palmt5_gpio_vbus,
 407};
 408
 409/* setup udc GPIOs initial state */
 410static void __init palmt5_udc_init(void)
 411{
 412        if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 413                gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 414                gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 415        }
 416}
 417
 418static void __init palmt5_init(void)
 419{
 420        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 421
 422        palmt5_pm_init();
 423        set_pxa_fb_info(&palmt5_lcd_screen);
 424        pxa_set_mci_info(&palmt5_mci_platform_data);
 425        palmt5_udc_init();
 426        pxa_set_ac97_info(&palmt5_ac97_pdata);
 427        pxa_set_ficp_info(&palmt5_ficp_platform_data);
 428        pxa_set_keypad_info(&palmt5_keypad_platform_data);
 429        wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 430
 431        platform_add_devices(devices, ARRAY_SIZE(devices));
 432}
 433
 434MACHINE_START(PALMT5, "Palm Tungsten|T5")
 435        .phys_io        = PALMT5_PHYS_IO_START,
 436        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 437        .boot_params    = 0xa0000100,
 438        .map_io         = pxa_map_io,
 439        .init_irq       = pxa27x_init_irq,
 440        .timer          = &pxa_timer,
 441        .init_machine   = palmt5_init
 442MACHINE_END
 443
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