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/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  ******************************************************************************/
  63 static 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)
 144 static 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
 160 static struct matrix_keymap_data almz72_matrix_keymap_data = {
 161         .keymap                 = palmz72_matrix_keys,
 162         .keymap_size            = ARRAY_SIZE(palmz72_matrix_keys),
 163 };
 164
 165 static 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
 173 static void __init palmz72_kpc_init(void)
 174 {
 175         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 176 }
 177 #else
 178 static inline void palmz72_kpc_init(void) {}
 179 #endif
 180
 181 /******************************************************************************
 182  * LEDs
 183  ******************************************************************************/
 184 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 185 static 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
 193 static struct gpio_led_platform_data gpio_led_info = {
 194         .leds           = gpio_leds,
 195         .num_leds       = ARRAY_SIZE(gpio_leds),
 196 };
 197
 198 static struct platform_device palmz72_leds = {
 199         .name   = "leds-gpio",
 200         .id     = -1,
 201         .dev    = {
 202                 .platform_data  = &gpio_led_info,
 203         }
 204 };
 205
 206 static void __init palmz72_leds_init(void)
 207 {
 208         platform_device_register(&palmz72_leds);
 209 }
 210 #else
 211 static 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
 228 static 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
 240 static unsigned long store_ptr;
 241
 242 /* syscore_ops for Palm Zire 72 PM */
 243
 244 static 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
 258 static void palmz72_pm_resume(void)
 259 {
 260         *PALMZ72_SAVE_DWORD = store_ptr;
 261 }
 262
 263 static struct syscore_ops palmz72_pm_syscore_ops = {
 264         .suspend = palmz72_pm_suspend,
 265         .resume = palmz72_pm_resume,
 266 };
 267
 268 static 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
 277 device_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)
 285 static 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. */
 292 static struct i2c_board_info palmz72_i2c_device[] = {
 293         {
 294                 I2C_BOARD_INFO("ov9640", 0x30),
 295         }
 296 };
 297
 298 static 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
 305 static 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
 314 static 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
 324 static 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
 334 static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
 335         .udelay         = 10,
 336         .timeout        = 100,
 337 };
 338
 339 static 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
 347 static 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. */
 358 static 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
 364 static 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
 377 static 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
 386 static inline void palmz72_camera_init(void) {}
 387 #endif
 388
 389 /******************************************************************************
 390  * Machine init
 391  ******************************************************************************/
 392 static 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
 415 MACHINE_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,
 424 MACHINE_END