arch/arm/mach-pxa/palmte2.c

   1 /*
   2  * Hardware definitions for Palm Tungsten|E2
   3  *
   4  * Author:
   5  *      Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
   6  *
   7  * Rewrite for mainline:
   8  *      Marek Vasut <marek.vasut@gmail.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  *
  14  * (find more info at www.hackndev.com)
  15  *
  16  */
  17
  18 #include <linux/platform_device.h>
  19 #include <linux/delay.h>
  20 #include <linux/irq.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input.h>
  23 #include <linux/pda_power.h>
  24 #include <linux/pwm_backlight.h>
  25 #include <linux/gpio.h>
  26 #include <linux/wm97xx_batt.h>
  27 #include <linux/power_supply.h>
  28 #include <linux/usb/gpio_vbus.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33
  34 #include <mach/audio.h>
  35 #include <mach/palmte2.h>
  36 #include <mach/mmc.h>
  37 #include <mach/pxafb.h>
  38 #include <mach/mfp-pxa25x.h>
  39 #include <mach/irda.h>
  40 #include <mach/udc.h>
  41 #include <mach/palmasoc.h>
  42
  43 #include "generic.h"
  44 #include "devices.h"
  45
  46 /******************************************************************************
  47  * Pin configuration
  48  ******************************************************************************/
  49 static unsigned long palmte2_pin_config[] __initdata = {
  50         /* MMC */
  51         GPIO6_MMC_CLK,
  52         GPIO8_MMC_CS0,
  53         GPIO10_GPIO,    /* SD detect */
  54         GPIO55_GPIO,    /* SD power */
  55         GPIO51_GPIO,    /* SD r/o switch */
  56
  57         /* AC97 */
  58         GPIO28_AC97_BITCLK,
  59         GPIO29_AC97_SDATA_IN_0,
  60         GPIO30_AC97_SDATA_OUT,
  61         GPIO31_AC97_SYNC,
  62
  63         /* PWM */
  64         GPIO16_PWM0_OUT,
  65
  66         /* USB */
  67         GPIO15_GPIO,    /* usb detect */
  68         GPIO53_GPIO,    /* usb power */
  69
  70         /* IrDA */
  71         GPIO48_GPIO,    /* ir disable */
  72         GPIO46_FICP_RXD,
  73         GPIO47_FICP_TXD,
  74
  75         /* LCD */
  76         GPIO58_LCD_LDD_0,
  77         GPIO59_LCD_LDD_1,
  78         GPIO60_LCD_LDD_2,
  79         GPIO61_LCD_LDD_3,
  80         GPIO62_LCD_LDD_4,
  81         GPIO63_LCD_LDD_5,
  82         GPIO64_LCD_LDD_6,
  83         GPIO65_LCD_LDD_7,
  84         GPIO66_LCD_LDD_8,
  85         GPIO67_LCD_LDD_9,
  86         GPIO68_LCD_LDD_10,
  87         GPIO69_LCD_LDD_11,
  88         GPIO70_LCD_LDD_12,
  89         GPIO71_LCD_LDD_13,
  90         GPIO72_LCD_LDD_14,
  91         GPIO73_LCD_LDD_15,
  92         GPIO74_LCD_FCLK,
  93         GPIO75_LCD_LCLK,
  94         GPIO76_LCD_PCLK,
  95         GPIO77_LCD_BIAS,
  96
  97         /* GPIO KEYS */
  98         GPIO5_GPIO,     /* notes */
  99         GPIO7_GPIO,     /* tasks */
 100         GPIO11_GPIO,    /* calendar */
 101         GPIO13_GPIO,    /* contacts */
 102         GPIO14_GPIO,    /* center */
 103         GPIO19_GPIO,    /* left */
 104         GPIO20_GPIO,    /* right */
 105         GPIO21_GPIO,    /* down */
 106         GPIO22_GPIO,    /* up */
 107
 108         /* MISC */
 109         GPIO1_RST,      /* reset */
 110         GPIO4_GPIO,     /* Hotsync button */
 111         GPIO9_GPIO,     /* power detect */
 112         GPIO15_GPIO,    /* earphone detect */
 113         GPIO37_GPIO,    /* LCD power */
 114         GPIO56_GPIO,    /* Backlight power */
 115 };
 116
 117 /******************************************************************************
 118  * SD/MMC card controller
 119  ******************************************************************************/
 120 static struct pxamci_platform_data palmte2_mci_platform_data = {
 121         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 122         .gpio_card_detect       = GPIO_NR_PALMTE2_SD_DETECT_N,
 123         .gpio_card_ro           = GPIO_NR_PALMTE2_SD_READONLY,
 124         .gpio_power             = GPIO_NR_PALMTE2_SD_POWER,
 125 };
 126
 127 /******************************************************************************
 128  * GPIO keys
 129  ******************************************************************************/
 130 static struct gpio_keys_button palmte2_pxa_buttons[] = {
 131         {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 132         {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 133         {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 134         {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 135         {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 136         {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 137         {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 138         {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 139         {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 140 };
 141
 142 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 143         .buttons        = palmte2_pxa_buttons,
 144         .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 145 };
 146
 147 static struct platform_device palmte2_pxa_keys = {
 148         .name   = "gpio-keys",
 149         .id     = -1,
 150         .dev    = {
 151                 .platform_data = &palmte2_pxa_keys_data,
 152         },
 153 };
 154
 155 /******************************************************************************
 156  * Backlight
 157  ******************************************************************************/
 158 static int palmte2_backlight_init(struct device *dev)
 159 {
 160         int ret;
 161
 162         ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
 163         if (ret)
 164                 goto err;
 165         ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
 166         if (ret)
 167                 goto err2;
 168         ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
 169         if (ret)
 170                 goto err2;
 171         ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
 172         if (ret)
 173                 goto err3;
 174
 175         return 0;
 176 err3:
 177         gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 178 err2:
 179         gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 180 err:
 181         return ret;
 182 }
 183
 184 static int palmte2_backlight_notify(int brightness)
 185 {
 186         gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 187         gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 188         return brightness;
 189 }
 190
 191 static void palmte2_backlight_exit(struct device *dev)
 192 {
 193         gpio_free(GPIO_NR_PALMTE2_BL_POWER);
 194         gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
 195 }
 196
 197 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 198         .pwm_id         = 0,
 199         .max_brightness = PALMTE2_MAX_INTENSITY,
 200         .dft_brightness = PALMTE2_MAX_INTENSITY,
 201         .pwm_period_ns  = PALMTE2_PERIOD_NS,
 202         .init           = palmte2_backlight_init,
 203         .notify         = palmte2_backlight_notify,
 204         .exit           = palmte2_backlight_exit,
 205 };
 206
 207 static struct platform_device palmte2_backlight = {
 208         .name   = "pwm-backlight",
 209         .dev    = {
 210                 .parent         = &pxa25x_device_pwm0.dev,
 211                 .platform_data  = &palmte2_backlight_data,
 212         },
 213 };
 214
 215 /******************************************************************************
 216  * IrDA
 217  ******************************************************************************/
 218 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 219         .gpio_pwdown            = GPIO_NR_PALMTE2_IR_DISABLE,
 220         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 221 };
 222
 223 /******************************************************************************
 224  * UDC
 225  ******************************************************************************/
 226 static struct gpio_vbus_mach_info palmte2_udc_info = {
 227         .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 228         .gpio_vbus_inverted     = 1,
 229         .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 230 };
 231
 232 static struct platform_device palmte2_gpio_vbus = {
 233         .name   = "gpio-vbus",
 234         .id     = -1,
 235         .dev    = {
 236                 .platform_data  = &palmte2_udc_info,
 237         },
 238 };
 239
 240 /******************************************************************************
 241  * Power supply
 242  ******************************************************************************/
 243 static int power_supply_init(struct device *dev)
 244 {
 245         int ret;
 246
 247         ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 248         if (ret)
 249                 goto err1;
 250         ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 251         if (ret)
 252                 goto err2;
 253
 254         return 0;
 255
 256 err2:
 257         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 258 err1:
 259         return ret;
 260 }
 261
 262 static int palmte2_is_ac_online(void)
 263 {
 264         return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 265 }
 266
 267 static void power_supply_exit(struct device *dev)
 268 {
 269         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 270 }
 271
 272 static char *palmte2_supplicants[] = {
 273         "main-battery",
 274 };
 275
 276 static struct pda_power_pdata power_supply_info = {
 277         .init            = power_supply_init,
 278         .is_ac_online    = palmte2_is_ac_online,
 279         .exit            = power_supply_exit,
 280         .supplied_to     = palmte2_supplicants,
 281         .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 282 };
 283
 284 static struct platform_device power_supply = {
 285         .name = "pda-power",
 286         .id   = -1,
 287         .dev  = {
 288                 .platform_data = &power_supply_info,
 289         },
 290 };
 291
 292 /******************************************************************************
 293  * WM97xx battery
 294  ******************************************************************************/
 295 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 296         .batt_aux       = WM97XX_AUX_ID3,
 297         .temp_aux       = WM97XX_AUX_ID2,
 298         .charge_gpio    = -1,
 299         .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 300         .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 301         .batt_mult      = 1000,
 302         .batt_div       = 414,
 303         .temp_mult      = 1,
 304         .temp_div       = 1,
 305         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 306         .batt_name      = "main-batt",
 307 };
 308
 309 /******************************************************************************
 310  * aSoC audio
 311  ******************************************************************************/
 312 static struct palm27x_asoc_info palmte2_asoc_pdata = {
 313         .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 314 };
 315
 316 static struct platform_device palmte2_asoc = {
 317         .name = "palm27x-asoc",
 318         .id   = -1,
 319         .dev  = {
 320                 .platform_data = &palmte2_asoc_pdata,
 321         },
 322 };
 323
 324 /******************************************************************************
 325  * Framebuffer
 326  ******************************************************************************/
 327 static struct pxafb_mode_info palmte2_lcd_modes[] = {
 328 {
 329         .pixclock       = 77757,
 330         .xres           = 320,
 331         .yres           = 320,
 332         .bpp            = 16,
 333
 334         .left_margin    = 28,
 335         .right_margin   = 7,
 336         .upper_margin   = 7,
 337         .lower_margin   = 5,
 338
 339         .hsync_len      = 4,
 340         .vsync_len      = 1,
 341 },
 342 };
 343
 344 static struct pxafb_mach_info palmte2_lcd_screen = {
 345         .modes          = palmte2_lcd_modes,
 346         .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 347         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 348 };
 349
 350 /******************************************************************************
 351  * Machine init
 352  ******************************************************************************/
 353 static struct platform_device *devices[] __initdata = {
 354 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 355         &palmte2_pxa_keys,
 356 #endif
 357         &palmte2_backlight,
 358         &power_supply,
 359         &palmte2_asoc,
 360         &palmte2_gpio_vbus,
 361 };
 362
 363 /* setup udc GPIOs initial state */
 364 static void __init palmte2_udc_init(void)
 365 {
 366         if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 367                 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 368                 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 369         }
 370 }
 371
 372 static void __init palmte2_init(void)
 373 {
 374         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 375
 376         set_pxa_fb_info(&palmte2_lcd_screen);
 377         pxa_set_mci_info(&palmte2_mci_platform_data);
 378         palmte2_udc_init();
 379         pxa_set_ac97_info(NULL);
 380         pxa_set_ficp_info(&palmte2_ficp_platform_data);
 381         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 382
 383         platform_add_devices(devices, ARRAY_SIZE(devices));
 384 }
 385
 386 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 387         .phys_io        = 0x40000000,
 388         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 389         .boot_params    = 0xa0000100,
 390         .map_io         = pxa_map_io,
 391         .init_irq       = pxa25x_init_irq,
 392         .timer          = &pxa_timer,
 393         .init_machine   = palmte2_init
 394 MACHINE_END