arch/arm/mach-pxa/palmz72.c

   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  ******************************************************************************/
  62 static 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)
 143 static 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
 159 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 160         .matrix_key_rows        = 4,
 161         .matrix_key_cols        = 3,
 162         .matrix_key_map         = palmz72_matrix_keys,
 163         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 164
 165         .debounce_interval      = 30,
 166 };
 167
 168 static void __init palmz72_kpc_init(void)
 169 {
 170         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 171 }
 172 #else
 173 static inline void palmz72_kpc_init(void) {}
 174 #endif
 175
 176 /******************************************************************************
 177  * LEDs
 178  ******************************************************************************/
 179 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 180 static struct gpio_led gpio_leds[] = {
 181         {
 182                 .name                   = "palmz72:green:led",
 183                 .default_trigger        = "none",
 184                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 185         },
 186 };
 187
 188 static struct gpio_led_platform_data gpio_led_info = {
 189         .leds           = gpio_leds,
 190         .num_leds       = ARRAY_SIZE(gpio_leds),
 191 };
 192
 193 static struct platform_device palmz72_leds = {
 194         .name   = "leds-gpio",
 195         .id     = -1,
 196         .dev    = {
 197                 .platform_data  = &gpio_led_info,
 198         }
 199 };
 200
 201 static void __init palmz72_leds_init(void)
 202 {
 203         platform_device_register(&palmz72_leds);
 204 }
 205 #else
 206 static inline void palmz72_leds_init(void) {}
 207 #endif
 208
 209 #ifdef CONFIG_PM
 210
 211 /* We have some black magic here
 212  * PalmOS ROM on recover expects special struct physical address
 213  * to be transferred via PSPR. Using this struct PalmOS restores
 214  * its state after sleep. As for Linux, we need to setup it the
 215  * same way. More than that, PalmOS ROM changes some values in memory.
 216  * For now only one location is found, which needs special treatment.
 217  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 218  * for reading backtraces for me :)
 219  */
 220
 221 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 222
 223 static struct palmz72_resume_info palmz72_resume_info = {
 224         .magic0 = 0xb4e6,
 225         .magic1 = 1,
 226
 227         /* reset state, MMU off etc */
 228         .arm_control = 0,
 229         .aux_control = 0,
 230         .ttb = 0,
 231         .domain_access = 0,
 232         .process_id = 0,
 233 };
 234
 235 static unsigned long store_ptr;
 236
 237 /* syscore_ops for Palm Zire 72 PM */
 238
 239 static int palmz72_pm_suspend(void)
 240 {
 241         /* setup the resume_info struct for the original bootloader */
 242         palmz72_resume_info.resume_addr = (u32) cpu_resume;
 243
 244         /* Storing memory touched by ROM */
 245         store_ptr = *PALMZ72_SAVE_DWORD;
 246
 247         /* Setting PSPR to a proper value */
 248         PSPR = virt_to_phys(&palmz72_resume_info);
 249
 250         return 0;
 251 }
 252
 253 static void palmz72_pm_resume(void)
 254 {
 255         *PALMZ72_SAVE_DWORD = store_ptr;
 256 }
 257
 258 static struct syscore_ops palmz72_pm_syscore_ops = {
 259         .suspend = palmz72_pm_suspend,
 260         .resume = palmz72_pm_resume,
 261 };
 262
 263 static int __init palmz72_pm_init(void)
 264 {
 265         if (machine_is_palmz72()) {
 266                 register_syscore_ops(&palmz72_pm_syscore_ops);
 267                 return 0;
 268         }
 269         return -ENODEV;
 270 }
 271
 272 device_initcall(palmz72_pm_init);
 273 #endif
 274
 275 /******************************************************************************
 276  * SoC Camera
 277  ******************************************************************************/
 278 #if defined(CONFIG_SOC_CAMERA_OV9640) || \
 279         defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
 280 static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
 281         .flags          = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
 282                         PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
 283         .mclk_10khz     = 2600,
 284 };
 285
 286 /* Board I2C devices. */
 287 static struct i2c_board_info palmz72_i2c_device[] = {
 288         {
 289                 I2C_BOARD_INFO("ov9640", 0x30),
 290         }
 291 };
 292
 293 static int palmz72_camera_power(struct device *dev, int power)
 294 {
 295         gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
 296         mdelay(50);
 297         return 0;
 298 }
 299
 300 static int palmz72_camera_reset(struct device *dev)
 301 {
 302         gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
 303         mdelay(50);
 304         gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
 305         mdelay(50);
 306         return 0;
 307 }
 308
 309 static struct soc_camera_link palmz72_iclink = {
 310         .bus_id         = 0, /* Match id in pxa27x_device_camera in device.c */
 311         .board_info     = &palmz72_i2c_device[0],
 312         .i2c_adapter_id = 0,
 313         .module_name    = "ov96xx",
 314         .power          = &palmz72_camera_power,
 315         .reset          = &palmz72_camera_reset,
 316         .flags          = SOCAM_DATAWIDTH_8,
 317 };
 318
 319 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
 320         .sda_pin        = 118,
 321         .scl_pin        = 117,
 322         .udelay         = 10,
 323         .timeout        = 100,
 324 };
 325
 326 static struct platform_device palmz72_i2c_bus_device = {
 327         .name           = "i2c-gpio",
 328         .id             = 0, /* we use this as a replacement for i2c-pxa */
 329         .dev            = {
 330                 .platform_data  = &palmz72_i2c_bus_data,
 331         }
 332 };
 333
 334 static struct platform_device palmz72_camera = {
 335         .name   = "soc-camera-pdrv",
 336         .id     = -1,
 337         .dev    = {
 338                 .platform_data  = &palmz72_iclink,
 339         },
 340 };
 341
 342 /* Here we request the camera GPIOs and configure them. We power up the camera
 343  * module, deassert the reset pin, but put it into powerdown (low to no power
 344  * consumption) mode. This allows us to later bring the module up fast. */
 345 static struct gpio palmz72_camera_gpios[] = {
 346         { GPIO_NR_PALMZ72_CAM_POWER,    GPIOF_INIT_HIGH,"Camera DVDD" },
 347         { GPIO_NR_PALMZ72_CAM_RESET,    GPIOF_INIT_LOW, "Camera RESET" },
 348         { GPIO_NR_PALMZ72_CAM_PWDN,     GPIOF_INIT_LOW, "Camera PWDN" },
 349 };
 350
 351 static inline void __init palmz72_cam_gpio_init(void)
 352 {
 353         int ret;
 354
 355         ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 356         if (!ret)
 357                 gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 358         else
 359                 printk(KERN_ERR "Camera GPIO init failed!\n");
 360
 361         return;
 362 }
 363
 364 static void __init palmz72_camera_init(void)
 365 {
 366         palmz72_cam_gpio_init();
 367         pxa_set_camera_info(&palmz72_pxacamera_platform_data);
 368         platform_device_register(&palmz72_i2c_bus_device);
 369         platform_device_register(&palmz72_camera);
 370 }
 371 #else
 372 static inline void palmz72_camera_init(void) {}
 373 #endif
 374
 375 /******************************************************************************
 376  * Machine init
 377  ******************************************************************************/
 378 static void __init palmz72_init(void)
 379 {
 380         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 381         pxa_set_ffuart_info(NULL);
 382         pxa_set_btuart_info(NULL);
 383         pxa_set_stuart_info(NULL);
 384
 385         palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
 386                         GPIO_NR_PALMZ72_SD_POWER_N, 1);
 387         palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
 388         palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
 389                         GPIO_NR_PALMZ72_USB_PULLUP, 0);
 390         palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
 391         palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
 392                         -1, 113);
 393         palm27x_pwm_init(-1, -1);
 394         palm27x_power_init(-1, -1);
 395         palm27x_pmic_init();
 396         palmz72_kpc_init();
 397         palmz72_leds_init();
 398         palmz72_camera_init();
 399 }
 400
 401 MACHINE_START(PALMZ72, "Palm Zire72")
 402         .atag_offset    = 0x100,
 403         .map_io         = pxa27x_map_io,
 404         .nr_irqs        = PXA_NR_IRQS,
 405         .init_irq       = pxa27x_init_irq,
 406         .handle_irq     = pxa27x_handle_irq,
 407         .init_time      = pxa_timer_init,
 408         .init_machine   = palmz72_init,
 409         .restart        = pxa_restart,
 410 MACHINE_END