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/mach/arch.h>
  37 #include <asm/mach/map.h>
  38
  39 #include <mach/pxa27x.h>
  40 #include <mach/audio.h>
  41 #include <mach/palmz72.h>
  42 #include <mach/mmc.h>
  43 #include <mach/pxafb.h>
  44 #include <mach/irda.h>
  45 #include <plat/pxa27x_keypad.h>
  46 #include <mach/udc.h>
  47 #include <mach/palmasoc.h>
  48 #include <mach/palm27x.h>
  49
  50 #include <mach/pm.h>
  51 #include <mach/camera.h>
  52
  53 #include <media/soc_camera.h>
  54
  55 #include "generic.h"
  56 #include "devices.h"
  57
  58 /******************************************************************************
  59  * Pin configuration
  60  ******************************************************************************/
  61 static unsigned long palmz72_pin_config[] __initdata = {
  62         /* MMC */
  63         GPIO32_MMC_CLK,
  64         GPIO92_MMC_DAT_0,
  65         GPIO109_MMC_DAT_1,
  66         GPIO110_MMC_DAT_2,
  67         GPIO111_MMC_DAT_3,
  68         GPIO112_MMC_CMD,
  69         GPIO14_GPIO,    /* SD detect */
  70         GPIO115_GPIO,   /* SD RO */
  71         GPIO98_GPIO,    /* SD power */
  72
  73         /* AC97 */
  74         GPIO28_AC97_BITCLK,
  75         GPIO29_AC97_SDATA_IN_0,
  76         GPIO30_AC97_SDATA_OUT,
  77         GPIO31_AC97_SYNC,
  78         GPIO89_AC97_SYSCLK,
  79         GPIO113_AC97_nRESET,
  80
  81         /* IrDA */
  82         GPIO49_GPIO,    /* ir disable */
  83         GPIO46_FICP_RXD,
  84         GPIO47_FICP_TXD,
  85
  86         /* PWM */
  87         GPIO16_PWM0_OUT,
  88
  89         /* USB */
  90         GPIO15_GPIO,    /* usb detect */
  91         GPIO95_GPIO,    /* usb pullup */
  92
  93         /* Matrix keypad */
  94         GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
  95         GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
  96         GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
  97         GPIO97_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
  98         GPIO103_KP_MKOUT_0,
  99         GPIO104_KP_MKOUT_1,
 100         GPIO105_KP_MKOUT_2,
 101
 102         /* LCD */
 103         GPIOxx_LCD_TFT_16BPP,
 104
 105         GPIO20_GPIO,    /* bl power */
 106         GPIO21_GPIO,    /* LCD border switch */
 107         GPIO22_GPIO,    /* LCD border color */
 108         GPIO96_GPIO,    /* lcd power */
 109
 110         /* PXA Camera */
 111         GPIO81_CIF_DD_0,
 112         GPIO48_CIF_DD_5,
 113         GPIO50_CIF_DD_3,
 114         GPIO51_CIF_DD_2,
 115         GPIO52_CIF_DD_4,
 116         GPIO53_CIF_MCLK,
 117         GPIO54_CIF_PCLK,
 118         GPIO55_CIF_DD_1,
 119         GPIO84_CIF_FV,
 120         GPIO85_CIF_LV,
 121         GPIO93_CIF_DD_6,
 122         GPIO108_CIF_DD_7,
 123
 124         GPIO56_GPIO,    /* OV9640 Powerdown */
 125         GPIO57_GPIO,    /* OV9640 Reset */
 126         GPIO91_GPIO,    /* OV9640 Power */
 127
 128         /* I2C */
 129         GPIO117_GPIO,   /* I2C_SCL */
 130         GPIO118_GPIO,   /* I2C_SDA */
 131
 132         /* Misc. */
 133         GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 134         GPIO88_GPIO,                            /* green led */
 135         GPIO27_GPIO,                            /* WM9712 IRQ */
 136 };
 137
 138 /******************************************************************************
 139  * GPIO keyboard
 140  ******************************************************************************/
 141 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 142 static unsigned int palmz72_matrix_keys[] = {
 143         KEY(0, 0, KEY_POWER),
 144         KEY(0, 1, KEY_F1),
 145         KEY(0, 2, KEY_ENTER),
 146
 147         KEY(1, 0, KEY_F2),
 148         KEY(1, 1, KEY_F3),
 149         KEY(1, 2, KEY_F4),
 150
 151         KEY(2, 0, KEY_UP),
 152         KEY(2, 2, KEY_DOWN),
 153
 154         KEY(3, 0, KEY_RIGHT),
 155         KEY(3, 2, KEY_LEFT),
 156 };
 157
 158 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 159         .matrix_key_rows        = 4,
 160         .matrix_key_cols        = 3,
 161         .matrix_key_map         = palmz72_matrix_keys,
 162         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 163
 164         .debounce_interval      = 30,
 165 };
 166
 167 static void __init palmz72_kpc_init(void)
 168 {
 169         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 170 }
 171 #else
 172 static inline void palmz72_kpc_init(void) {}
 173 #endif
 174
 175 /******************************************************************************
 176  * LEDs
 177  ******************************************************************************/
 178 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 179 static struct gpio_led gpio_leds[] = {
 180         {
 181                 .name                   = "palmz72:green:led",
 182                 .default_trigger        = "none",
 183                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 184         },
 185 };
 186
 187 static struct gpio_led_platform_data gpio_led_info = {
 188         .leds           = gpio_leds,
 189         .num_leds       = ARRAY_SIZE(gpio_leds),
 190 };
 191
 192 static struct platform_device palmz72_leds = {
 193         .name   = "leds-gpio",
 194         .id     = -1,
 195         .dev    = {
 196                 .platform_data  = &gpio_led_info,
 197         }
 198 };
 199
 200 static void __init palmz72_leds_init(void)
 201 {
 202         platform_device_register(&palmz72_leds);
 203 }
 204 #else
 205 static inline void palmz72_leds_init(void) {}
 206 #endif
 207
 208 #ifdef CONFIG_PM
 209
 210 /* We have some black magic here
 211  * PalmOS ROM on recover expects special struct physical address
 212  * to be transferred via PSPR. Using this struct PalmOS restores
 213  * its state after sleep. As for Linux, we need to setup it the
 214  * same way. More than that, PalmOS ROM changes some values in memory.
 215  * For now only one location is found, which needs special treatment.
 216  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 217  * for reading backtraces for me :)
 218  */
 219
 220 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 221
 222 static struct palmz72_resume_info palmz72_resume_info = {
 223         .magic0 = 0xb4e6,
 224         .magic1 = 1,
 225
 226         /* reset state, MMU off etc */
 227         .arm_control = 0,
 228         .aux_control = 0,
 229         .ttb = 0,
 230         .domain_access = 0,
 231         .process_id = 0,
 232 };
 233
 234 static unsigned long store_ptr;
 235
 236 /* syscore_ops for Palm Zire 72 PM */
 237
 238 static int palmz72_pm_suspend(void)
 239 {
 240         /* setup the resume_info struct for the original bootloader */
 241         palmz72_resume_info.resume_addr = (u32) cpu_resume;
 242
 243         /* Storing memory touched by ROM */
 244         store_ptr = *PALMZ72_SAVE_DWORD;
 245
 246         /* Setting PSPR to a proper value */
 247         PSPR = virt_to_phys(&palmz72_resume_info);
 248
 249         return 0;
 250 }
 251
 252 static void palmz72_pm_resume(void)
 253 {
 254         *PALMZ72_SAVE_DWORD = store_ptr;
 255 }
 256
 257 static struct syscore_ops palmz72_pm_syscore_ops = {
 258         .suspend = palmz72_pm_suspend,
 259         .resume = palmz72_pm_resume,
 260 };
 261
 262 static int __init palmz72_pm_init(void)
 263 {
 264         if (machine_is_palmz72()) {
 265                 register_syscore_ops(&palmz72_pm_syscore_ops);
 266                 return 0;
 267         }
 268         return -ENODEV;
 269 }
 270
 271 device_initcall(palmz72_pm_init);
 272 #endif
 273
 274 /******************************************************************************
 275  * SoC Camera
 276  ******************************************************************************/
 277 #if defined(CONFIG_SOC_CAMERA_OV9640) || \
 278         defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
 279 static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
 280         .flags          = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
 281                         PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
 282         .mclk_10khz     = 2600,
 283 };
 284
 285 /* Board I2C devices. */
 286 static struct i2c_board_info palmz72_i2c_device[] = {
 287         {
 288                 I2C_BOARD_INFO("ov9640", 0x30),
 289         }
 290 };
 291
 292 static int palmz72_camera_power(struct device *dev, int power)
 293 {
 294         gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
 295         mdelay(50);
 296         return 0;
 297 }
 298
 299 static int palmz72_camera_reset(struct device *dev)
 300 {
 301         gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
 302         mdelay(50);
 303         gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
 304         mdelay(50);
 305         return 0;
 306 }
 307
 308 static struct soc_camera_link palmz72_iclink = {
 309         .bus_id         = 0, /* Match id in pxa27x_device_camera in device.c */
 310         .board_info     = &palmz72_i2c_device[0],
 311         .i2c_adapter_id = 0,
 312         .module_name    = "ov96xx",
 313         .power          = &palmz72_camera_power,
 314         .reset          = &palmz72_camera_reset,
 315         .flags          = SOCAM_DATAWIDTH_8,
 316 };
 317
 318 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
 319         .sda_pin        = 118,
 320         .scl_pin        = 117,
 321         .udelay         = 10,
 322         .timeout        = 100,
 323 };
 324
 325 static struct platform_device palmz72_i2c_bus_device = {
 326         .name           = "i2c-gpio",
 327         .id             = 0, /* we use this as a replacement for i2c-pxa */
 328         .dev            = {
 329                 .platform_data  = &palmz72_i2c_bus_data,
 330         }
 331 };
 332
 333 static struct platform_device palmz72_camera = {
 334         .name   = "soc-camera-pdrv",
 335         .id     = -1,
 336         .dev    = {
 337                 .platform_data  = &palmz72_iclink,
 338         },
 339 };
 340
 341 /* Here we request the camera GPIOs and configure them. We power up the camera
 342  * module, deassert the reset pin, but put it into powerdown (low to no power
 343  * consumption) mode. This allows us to later bring the module up fast. */
 344 static struct gpio palmz72_camera_gpios[] = {
 345         { GPIO_NR_PALMZ72_CAM_POWER,    GPIOF_INIT_HIGH,"Camera DVDD" },
 346         { GPIO_NR_PALMZ72_CAM_RESET,    GPIOF_INIT_LOW, "Camera RESET" },
 347         { GPIO_NR_PALMZ72_CAM_PWDN,     GPIOF_INIT_LOW, "Camera PWDN" },
 348 };
 349
 350 static inline void __init palmz72_cam_gpio_init(void)
 351 {
 352         int ret;
 353
 354         ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 355         if (!ret)
 356                 gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
 357         else
 358                 printk(KERN_ERR "Camera GPIO init failed!\n");
 359
 360         return;
 361 }
 362
 363 static void __init palmz72_camera_init(void)
 364 {
 365         palmz72_cam_gpio_init();
 366         pxa_set_camera_info(&palmz72_pxacamera_platform_data);
 367         platform_device_register(&palmz72_i2c_bus_device);
 368         platform_device_register(&palmz72_camera);
 369 }
 370 #else
 371 static inline void palmz72_camera_init(void) {}
 372 #endif
 373
 374 /******************************************************************************
 375  * Machine init
 376  ******************************************************************************/
 377 static void __init palmz72_init(void)
 378 {
 379         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 380         pxa_set_ffuart_info(NULL);
 381         pxa_set_btuart_info(NULL);
 382         pxa_set_stuart_info(NULL);
 383
 384         palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
 385                         GPIO_NR_PALMZ72_SD_POWER_N, 1);
 386         palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
 387         palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
 388                         GPIO_NR_PALMZ72_USB_PULLUP, 0);
 389         palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
 390         palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
 391                         -1, 113);
 392         palm27x_pwm_init(-1, -1);
 393         palm27x_power_init(-1, -1);
 394         palm27x_pmic_init();
 395         palmz72_kpc_init();
 396         palmz72_leds_init();
 397         palmz72_camera_init();
 398 }
 399
 400 MACHINE_START(PALMZ72, "Palm Zire72")
 401         .boot_params    = 0xa0000100,
 402         .map_io         = pxa27x_map_io,
 403         .init_irq       = pxa27x_init_irq,
 404         .timer          = &pxa_timer,
 405         .init_machine   = palmz72_init
 406 MACHINE_END