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