linux/arch/arm/mach-pxa/palmz72.c
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   1/*
   2 * Hardware definitions for Palm Zire72
   3 *
   4 * Authors:
   5 *      Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
   6 *      Sergey Lapin <slapin@ossfans.org>
   7 *      Alex Osborne <bobofdoom@gmail.com>
   8 *      Jan Herman <2hp@seznam.cz>
   9 *
  10 * Rewrite for mainline:
  11 *      Marek Vasut <marek.vasut@gmail.com>
  12 *
  13 * This program is free software; you can redistribute it and/or modify
  14 * it under the terms of the GNU General Public License version 2 as
  15 * published by the Free Software Foundation.
  16 *
  17 * (find more info at www.hackndev.com)
  18 *
  19 */
  20
  21#include <linux/platform_device.h>
  22#include <linux/syscore_ops.h>
  23#include <linux/delay.h>
  24#include <linux/irq.h>
  25#include <linux/gpio_keys.h>
  26#include <linux/input.h>
  27#include <linux/pda_power.h>
  28#include <linux/pwm_backlight.h>
  29#include <linux/gpio.h>
  30#include <linux/wm97xx.h>
  31#include <linux/power_supply.h>
  32#include <linux/usb/gpio_vbus.h>
  33#include <linux/platform_data/i2c-gpio.h>
  34#include <linux/gpio/machine.h>
  35
  36#include <asm/mach-types.h>
  37#include <asm/suspend.h>
  38#include <asm/mach/arch.h>
  39#include <asm/mach/map.h>
  40
  41#include "pxa27x.h"
  42#include <mach/audio.h>
  43#include "palmz72.h"
  44#include <linux/platform_data/mmc-pxamci.h>
  45#include <linux/platform_data/video-pxafb.h>
  46#include <linux/platform_data/irda-pxaficp.h>
  47#include <linux/platform_data/keypad-pxa27x.h>
  48#include "udc.h"
  49#include <linux/platform_data/asoc-palm27x.h>
  50#include "palm27x.h"
  51
  52#include "pm.h"
  53#include <linux/platform_data/media/camera-pxa.h>
  54
  55#include <media/soc_camera.h>
  56
  57#include "generic.h"
  58#include "devices.h"
  59
  60/******************************************************************************
  61 * Pin configuration
  62 ******************************************************************************/
  63static unsigned long palmz72_pin_config[] __initdata = {
  64        /* MMC */
  65        GPIO32_MMC_CLK,
  66        GPIO92_MMC_DAT_0,
  67        GPIO109_MMC_DAT_1,
  68        GPIO110_MMC_DAT_2,
  69        GPIO111_MMC_DAT_3,
  70        GPIO112_MMC_CMD,
  71        GPIO14_GPIO,    /* SD detect */
  72        GPIO115_GPIO,   /* SD RO */
  73        GPIO98_GPIO,    /* SD power */
  74
  75        /* AC97 */
  76        GPIO28_AC97_BITCLK,
  77        GPIO29_AC97_SDATA_IN_0,
  78        GPIO30_AC97_SDATA_OUT,
  79        GPIO31_AC97_SYNC,
  80        GPIO89_AC97_SYSCLK,
  81        GPIO113_AC97_nRESET,
  82
  83        /* IrDA */
  84        GPIO49_GPIO,    /* ir disable */
  85        GPIO46_FICP_RXD,
  86        GPIO47_FICP_TXD,
  87
  88        /* PWM */
  89        GPIO16_PWM0_OUT,
  90
  91        /* USB */
  92        GPIO15_GPIO,    /* usb detect */
  93        GPIO95_GPIO,    /* usb pullup */
  94
  95        /* Matrix keypad */
  96        GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
  97        GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
  98        GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
  99        GPIO97_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
 100        GPIO103_KP_MKOUT_0,
 101        GPIO104_KP_MKOUT_1,
 102        GPIO105_KP_MKOUT_2,
 103
 104        /* LCD */
 105        GPIOxx_LCD_TFT_16BPP,
 106
 107        GPIO20_GPIO,    /* bl power */
 108        GPIO21_GPIO,    /* LCD border switch */
 109        GPIO22_GPIO,    /* LCD border color */
 110        GPIO96_GPIO,    /* lcd power */
 111
 112        /* PXA Camera */
 113        GPIO81_CIF_DD_0,
 114        GPIO48_CIF_DD_5,
 115        GPIO50_CIF_DD_3,
 116        GPIO51_CIF_DD_2,
 117        GPIO52_CIF_DD_4,
 118        GPIO53_CIF_MCLK,
 119        GPIO54_CIF_PCLK,
 120        GPIO55_CIF_DD_1,
 121        GPIO84_CIF_FV,
 122        GPIO85_CIF_LV,
 123        GPIO93_CIF_DD_6,
 124        GPIO108_CIF_DD_7,
 125
 126        GPIO56_GPIO,    /* OV9640 Powerdown */
 127        GPIO57_GPIO,    /* OV9640 Reset */
 128        GPIO91_GPIO,    /* OV9640 Power */
 129
 130        /* I2C */
 131        GPIO117_GPIO,   /* I2C_SCL */
 132        GPIO118_GPIO,   /* I2C_SDA */
 133
 134        /* Misc. */
 135        GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 136        GPIO88_GPIO,                            /* green led */
 137        GPIO27_GPIO,                            /* WM9712 IRQ */
 138};
 139
 140/******************************************************************************
 141 * GPIO keyboard
 142 ******************************************************************************/
 143#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 144static const unsigned int palmz72_matrix_keys[] = {
 145        KEY(0, 0, KEY_POWER),
 146        KEY(0, 1, KEY_F1),
 147        KEY(0, 2, KEY_ENTER),
 148
 149        KEY(1, 0, KEY_F2),
 150        KEY(1, 1, KEY_F3),
 151        KEY(1, 2, KEY_F4),
 152
 153        KEY(2, 0, KEY_UP),
 154        KEY(2, 2, KEY_DOWN),
 155
 156        KEY(3, 0, KEY_RIGHT),
 157        KEY(3, 2, KEY_LEFT),
 158};
 159
 160static struct matrix_keymap_data almz72_matrix_keymap_data = {
 161        .keymap                 = palmz72_matrix_keys,
 162        .keymap_size            = ARRAY_SIZE(palmz72_matrix_keys),
 163};
 164
 165static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 166        .matrix_key_rows        = 4,
 167        .matrix_key_cols        = 3,
 168        .matrix_keymap_data     = &almz72_matrix_keymap_data,
 169
 170        .debounce_interval      = 30,
 171};
 172
 173static void __init palmz72_kpc_init(void)
 174{
 175        pxa_set_keypad_info(&palmz72_keypad_platform_data);
 176}
 177#else
 178static inline void palmz72_kpc_init(void) {}
 179#endif
 180
 181/******************************************************************************
 182 * LEDs
 183 ******************************************************************************/
 184#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 185static struct gpio_led gpio_leds[] = {
 186        {
 187                .name                   = "palmz72:green:led",
 188                .default_trigger        = "none",
 189                .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 190        },
 191};
 192
 193static struct gpio_led_platform_data gpio_led_info = {
 194        .leds           = gpio_leds,
 195        .num_leds       = ARRAY_SIZE(gpio_leds),
 196};
 197
 198static struct platform_device palmz72_leds = {
 199        .name   = "leds-gpio",
 200        .id     = -1,
 201        .dev    = {
 202                .platform_data  = &gpio_led_info,
 203        }
 204};
 205
 206static void __init palmz72_leds_init(void)
 207{
 208        platform_device_register(&palmz72_leds);
 209}
 210#else
 211static inline void palmz72_leds_init(void) {}
 212#endif
 213
 214#ifdef CONFIG_PM
 215
 216/* We have some black magic here
 217 * PalmOS ROM on recover expects special struct physical address
 218 * to be transferred via PSPR. Using this struct PalmOS restores
 219 * its state after sleep. As for Linux, we need to setup it the
 220 * same way. More than that, PalmOS ROM changes some values in memory.
 221 * For now only one location is found, which needs special treatment.
 222 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 223 * for reading backtraces for me :)
 224 */
 225
 226#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 227
 228static struct palmz72_resume_info palmz72_resume_info = {
 229        .magic0 = 0xb4e6,
 230        .magic1 = 1,
 231
 232        /* reset state, MMU off etc */
 233        .arm_control = 0,
 234        .aux_control = 0,
 235        .ttb = 0,
 236        .domain_access = 0,
 237        .process_id = 0,
 238};
 239
 240static unsigned long store_ptr;
 241
 242/* syscore_ops for Palm Zire 72 PM */
 243
 244static int palmz72_pm_suspend(void)
 245{
 246        /* setup the resume_info struct for the original bootloader */
 247        palmz72_resume_info.resume_addr = (u32) cpu_resume;
 248
 249        /* Storing memory touched by ROM */
 250        store_ptr = *PALMZ72_SAVE_DWORD;
 251
 252        /* Setting PSPR to a proper value */
 253        PSPR = __pa_symbol(&palmz72_resume_info);
 254
 255        return 0;
 256}
 257
 258static void palmz72_pm_resume(void)
 259{
 260        *PALMZ72_SAVE_DWORD = store_ptr;
 261}
 262
 263static struct syscore_ops palmz72_pm_syscore_ops = {
 264        .suspend = palmz72_pm_suspend,
 265        .resume = palmz72_pm_resume,
 266};
 267
 268static int __init palmz72_pm_init(void)
 269{
 270        if (machine_is_palmz72()) {
 271                register_syscore_ops(&palmz72_pm_syscore_ops);
 272                return 0;
 273        }
 274        return -ENODEV;
 275}
 276
 277device_initcall(palmz72_pm_init);
 278#endif
 279
 280/******************************************************************************
 281 * SoC Camera
 282 ******************************************************************************/
 283#if defined(CONFIG_SOC_CAMERA_OV9640) || \
 284        defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
 285static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
 286        .flags          = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
 287                        PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
 288        .mclk_10khz     = 2600,
 289};
 290
 291/* Board I2C devices. */
 292static struct i2c_board_info palmz72_i2c_device[] = {
 293        {
 294                I2C_BOARD_INFO("ov9640", 0x30),
 295        }
 296};
 297
 298static int palmz72_camera_power(struct device *dev, int power)
 299{
 300        gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
 301        mdelay(50);
 302        return 0;
 303}
 304
 305static int palmz72_camera_reset(struct device *dev)
 306{
 307        gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
 308        mdelay(50);
 309        gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
 310        mdelay(50);
 311        return 0;
 312}
 313
 314static struct soc_camera_link palmz72_iclink = {
 315        .bus_id         = 0, /* Match id in pxa27x_device_camera in device.c */
 316        .board_info     = &palmz72_i2c_device[0],
 317        .i2c_adapter_id = 0,
 318        .module_name    = "ov96xx",
 319        .power          = &palmz72_camera_power,
 320        .reset          = &palmz72_camera_reset,
 321        .flags          = SOCAM_DATAWIDTH_8,
 322};
 323
 324static struct gpiod_lookup_table palmz72_i2c_gpiod_table = {
 325        .dev_id         = "i2c-gpio.0",
 326        .table          = {
 327                GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0,
 328                                GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 329                GPIO_LOOKUP_IDX("gpio-pxa", 117, NULL, 1,
 330                                GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 331        },
 332};
 333
 334static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
 335        .udelay         = 10,
 336        .timeout        = 100,
 337};
 338
 339static struct platform_device palmz72_i2c_bus_device = {
 340        .name           = "i2c-gpio",
 341        .id             = 0, /* we use this as a replacement for i2c-pxa */
 342        .dev            = {
 343                .platform_data  = &palmz72_i2c_bus_data,
 344        }
 345};
 346
 347static struct platform_device palmz72_camera = {
 348        .name   = "soc-camera-pdrv",
 349        .id     = -1,
 350        .dev    = {
 351                .platform_data  = &palmz72_iclink,
 352        },
 353};
 354
 355/* Here we request the camera GPIOs and configure them. We power up the camera
 356 * module, deassert the reset pin, but put it into powerdown (low to no power
 357 * consumption) mode. This allows us to later bring the module up fast. */
 358static struct gpio palmz72_camera_gpios[] = {
 359        { GPIO_NR_PALMZ72_CAM_POWER,    GPIOF_INIT_HIGH,"Camera DVDD" },
 360        { GPIO_NR_PALMZ72_CAM_RESET,    GPIOF_INIT_LOW, "Camera RESET" },
 361        { GPIO_NR_PALMZ72_CAM_PWDN,     GPIOF_INIT_LOW, "Camera PWDN" },
 362};
 363
 364static inline void __init palmz72_cam_gpio_init(void)
 365{
 366        int ret;
 367
 368        ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 369        if (!ret)
 370                gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 371        else
 372                printk(KERN_ERR "Camera GPIO init failed!\n");
 373
 374        return;
 375}
 376
 377static void __init palmz72_camera_init(void)
 378{
 379        palmz72_cam_gpio_init();
 380        pxa_set_camera_info(&palmz72_pxacamera_platform_data);
 381        gpiod_add_lookup_table(&palmz72_i2c_gpiod_table);
 382        platform_device_register(&palmz72_i2c_bus_device);
 383        platform_device_register(&palmz72_camera);
 384}
 385#else
 386static inline void palmz72_camera_init(void) {}
 387#endif
 388
 389/******************************************************************************
 390 * Machine init
 391 ******************************************************************************/
 392static void __init palmz72_init(void)
 393{
 394        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 395        pxa_set_ffuart_info(NULL);
 396        pxa_set_btuart_info(NULL);
 397        pxa_set_stuart_info(NULL);
 398
 399        palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
 400                        GPIO_NR_PALMZ72_SD_POWER_N, 1);
 401        palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
 402        palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
 403                        GPIO_NR_PALMZ72_USB_PULLUP, 0);
 404        palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
 405        palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
 406                        -1, 113);
 407        palm27x_pwm_init(-1, -1);
 408        palm27x_power_init(-1, -1);
 409        palm27x_pmic_init();
 410        palmz72_kpc_init();
 411        palmz72_leds_init();
 412        palmz72_camera_init();
 413}
 414
 415MACHINE_START(PALMZ72, "Palm Zire72")
 416        .atag_offset    = 0x100,
 417        .map_io         = pxa27x_map_io,
 418        .nr_irqs        = PXA_NR_IRQS,
 419        .init_irq       = pxa27x_init_irq,
 420        .handle_irq     = pxa27x_handle_irq,
 421        .init_time      = pxa_timer_init,
 422        .init_machine   = palmz72_init,
 423        .restart        = pxa_restart,
 424MACHINE_END
 425