arch/arm/mach-pxa/palmt5.c

   1 /*
   2  * Hardware definitions for Palm Tungsten|T5
   3  *
   4  * Author:      Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Ales Snuparek <snuparek@atlas.cz>
   8  *              Justin Kendrick <twilightsentry@gmail.com>
   9  *              RichardT5 <richard_t5@users.sourceforge.net>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * (find more info at www.hackndev.com)
  16  *
  17  */
  18
  19 #include <linux/platform_device.h>
  20 #include <linux/delay.h>
  21 #include <linux/irq.h>
  22 #include <linux/gpio_keys.h>
  23 #include <linux/input.h>
  24 #include <linux/pda_power.h>
  25 #include <linux/pwm_backlight.h>
  26 #include <linux/gpio.h>
  27 #include <linux/wm97xx_batt.h>
  28 #include <linux/power_supply.h>
  29 #include <linux/usb/gpio_vbus.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <mach/pxa27x.h>
  36 #include <mach/audio.h>
  37 #include <mach/palmt5.h>
  38 #include <mach/mmc.h>
  39 #include <mach/pxafb.h>
  40 #include <mach/irda.h>
  41 #include <mach/pxa27x_keypad.h>
  42 #include <mach/udc.h>
  43 #include <mach/palmasoc.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /******************************************************************************
  49  * Pin configuration
  50  ******************************************************************************/
  51 static unsigned long palmt5_pin_config[] __initdata = {
  52         /* MMC */
  53         GPIO32_MMC_CLK,
  54         GPIO92_MMC_DAT_0,
  55         GPIO109_MMC_DAT_1,
  56         GPIO110_MMC_DAT_2,
  57         GPIO111_MMC_DAT_3,
  58         GPIO112_MMC_CMD,
  59         GPIO14_GPIO,    /* SD detect */
  60         GPIO114_GPIO,   /* SD power */
  61         GPIO115_GPIO,   /* SD r/o switch */
  62
  63         /* AC97 */
  64         GPIO28_AC97_BITCLK,
  65         GPIO29_AC97_SDATA_IN_0,
  66         GPIO30_AC97_SDATA_OUT,
  67         GPIO31_AC97_SYNC,
  68         GPIO89_AC97_SYSCLK,
  69         GPIO95_AC97_nRESET,
  70
  71         /* IrDA */
  72         GPIO40_GPIO,    /* ir disable */
  73         GPIO46_FICP_RXD,
  74         GPIO47_FICP_TXD,
  75
  76         /* USB */
  77         GPIO15_GPIO,    /* usb detect */
  78         GPIO93_GPIO,    /* usb power */
  79
  80         /* MATRIX KEYPAD */
  81         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  82         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  83         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  84         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  85         GPIO103_KP_MKOUT_0,
  86         GPIO104_KP_MKOUT_1,
  87         GPIO105_KP_MKOUT_2,
  88
  89         /* LCD */
  90         GPIOxx_LCD_TFT_16BPP,
  91
  92         /* PWM */
  93         GPIO16_PWM0_OUT,
  94
  95         /* FFUART */
  96         GPIO34_FFUART_RXD,
  97         GPIO39_FFUART_TXD,
  98
  99         /* MISC */
 100         GPIO10_GPIO,    /* hotsync button */
 101         GPIO90_GPIO,    /* power detect */
 102         GPIO107_GPIO,   /* earphone detect */
 103 };
 104
 105 /******************************************************************************
 106  * SD/MMC card controller
 107  ******************************************************************************/
 108 static struct pxamci_platform_data palmt5_mci_platform_data = {
 109         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 110         .gpio_card_detect       = GPIO_NR_PALMT5_SD_DETECT_N,
 111         .gpio_card_ro           = GPIO_NR_PALMT5_SD_READONLY,
 112         .gpio_power             = GPIO_NR_PALMT5_SD_POWER,
 113         .detect_delay_ms        = 200,
 114 };
 115
 116 /******************************************************************************
 117  * GPIO keyboard
 118  ******************************************************************************/
 119 static unsigned int palmt5_matrix_keys[] = {
 120         KEY(0, 0, KEY_POWER),
 121         KEY(0, 1, KEY_F1),
 122         KEY(0, 2, KEY_ENTER),
 123
 124         KEY(1, 0, KEY_F2),
 125         KEY(1, 1, KEY_F3),
 126         KEY(1, 2, KEY_F4),
 127
 128         KEY(2, 0, KEY_UP),
 129         KEY(2, 2, KEY_DOWN),
 130
 131         KEY(3, 0, KEY_RIGHT),
 132         KEY(3, 2, KEY_LEFT),
 133 };
 134
 135 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 136         .matrix_key_rows        = 4,
 137         .matrix_key_cols        = 3,
 138         .matrix_key_map         = palmt5_matrix_keys,
 139         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 140
 141         .debounce_interval      = 30,
 142 };
 143
 144 /******************************************************************************
 145  * GPIO keys
 146  ******************************************************************************/
 147 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 148         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 149 };
 150
 151 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 152         .buttons        = palmt5_pxa_buttons,
 153         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 154 };
 155
 156 static struct platform_device palmt5_pxa_keys = {
 157         .name   = "gpio-keys",
 158         .id     = -1,
 159         .dev    = {
 160                 .platform_data = &palmt5_pxa_keys_data,
 161         },
 162 };
 163
 164 /******************************************************************************
 165  * Backlight
 166  ******************************************************************************/
 167 static int palmt5_backlight_init(struct device *dev)
 168 {
 169         int ret;
 170
 171         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 172         if (ret)
 173                 goto err;
 174         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 175         if (ret)
 176                 goto err2;
 177         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 178         if (ret)
 179                 goto err2;
 180         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 181         if (ret)
 182                 goto err3;
 183
 184         return 0;
 185 err3:
 186         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 187 err2:
 188         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 189 err:
 190         return ret;
 191 }
 192
 193 static int palmt5_backlight_notify(struct device *dev, int brightness)
 194 {
 195         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 196         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 197         return brightness;
 198 }
 199
 200 static void palmt5_backlight_exit(struct device *dev)
 201 {
 202         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 203         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 204 }
 205
 206 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 207         .pwm_id         = 0,
 208         .max_brightness = PALMT5_MAX_INTENSITY,
 209         .dft_brightness = PALMT5_MAX_INTENSITY,
 210         .pwm_period_ns  = PALMT5_PERIOD_NS,
 211         .init           = palmt5_backlight_init,
 212         .notify         = palmt5_backlight_notify,
 213         .exit           = palmt5_backlight_exit,
 214 };
 215
 216 static struct platform_device palmt5_backlight = {
 217         .name   = "pwm-backlight",
 218         .dev    = {
 219                 .parent         = &pxa27x_device_pwm0.dev,
 220                 .platform_data  = &palmt5_backlight_data,
 221         },
 222 };
 223
 224 /******************************************************************************
 225  * IrDA
 226  ******************************************************************************/
 227 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 228         .gpio_pwdown            = GPIO_NR_PALMT5_IR_DISABLE,
 229         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 230 };
 231
 232 /******************************************************************************
 233  * UDC
 234  ******************************************************************************/
 235 static struct gpio_vbus_mach_info palmt5_udc_info = {
 236         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 237         .gpio_vbus_inverted     = 1,
 238         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 239 };
 240
 241 static struct platform_device palmt5_gpio_vbus = {
 242         .name   = "gpio-vbus",
 243         .id     = -1,
 244         .dev    = {
 245                 .platform_data  = &palmt5_udc_info,
 246         },
 247 };
 248
 249 /******************************************************************************
 250  * Power supply
 251  ******************************************************************************/
 252 static int power_supply_init(struct device *dev)
 253 {
 254         int ret;
 255
 256         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 257         if (ret)
 258                 goto err1;
 259         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 260         if (ret)
 261                 goto err2;
 262
 263         return 0;
 264 err2:
 265         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 266 err1:
 267         return ret;
 268 }
 269
 270 static int palmt5_is_ac_online(void)
 271 {
 272         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 273 }
 274
 275 static void power_supply_exit(struct device *dev)
 276 {
 277         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 278 }
 279
 280 static char *palmt5_supplicants[] = {
 281         "main-battery",
 282 };
 283
 284 static struct pda_power_pdata power_supply_info = {
 285         .init            = power_supply_init,
 286         .is_ac_online    = palmt5_is_ac_online,
 287         .exit            = power_supply_exit,
 288         .supplied_to     = palmt5_supplicants,
 289         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 290 };
 291
 292 static struct platform_device power_supply = {
 293         .name = "pda-power",
 294         .id   = -1,
 295         .dev  = {
 296                 .platform_data = &power_supply_info,
 297         },
 298 };
 299
 300 /******************************************************************************
 301  * WM97xx battery
 302  ******************************************************************************/
 303 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 304         .batt_aux       = WM97XX_AUX_ID3,
 305         .temp_aux       = WM97XX_AUX_ID2,
 306         .charge_gpio    = -1,
 307         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 308         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 309         .batt_mult      = 1000,
 310         .batt_div       = 414,
 311         .temp_mult      = 1,
 312         .temp_div       = 1,
 313         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 314         .batt_name      = "main-batt",
 315 };
 316
 317 /******************************************************************************
 318  * aSoC audio
 319  ******************************************************************************/
 320 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 321         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 322 };
 323
 324 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 325         .reset_gpio     = 95,
 326 };
 327
 328 static struct platform_device palmt5_asoc = {
 329         .name = "palm27x-asoc",
 330         .id   = -1,
 331         .dev  = {
 332                 .platform_data = &palmt5_asoc_pdata,
 333         },
 334 };
 335
 336 /******************************************************************************
 337  * Framebuffer
 338  ******************************************************************************/
 339 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 340 {
 341         .pixclock       = 57692,
 342         .xres           = 320,
 343         .yres           = 480,
 344         .bpp            = 16,
 345
 346         .left_margin    = 32,
 347         .right_margin   = 1,
 348         .upper_margin   = 7,
 349         .lower_margin   = 1,
 350
 351         .hsync_len      = 4,
 352         .vsync_len      = 1,
 353 },
 354 };
 355
 356 static struct pxafb_mach_info palmt5_lcd_screen = {
 357         .modes          = palmt5_lcd_modes,
 358         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 359         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 360 };
 361
 362 /******************************************************************************
 363  * Power management - standby
 364  ******************************************************************************/
 365 static void __init palmt5_pm_init(void)
 366 {
 367         static u32 resume[] = {
 368                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 369                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 370                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 371         };
 372
 373         /* copy the bootloader */
 374         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 375 }
 376
 377 /******************************************************************************
 378  * Machine init
 379  ******************************************************************************/
 380 static struct platform_device *devices[] __initdata = {
 381 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 382         &palmt5_pxa_keys,
 383 #endif
 384         &palmt5_backlight,
 385         &power_supply,
 386         &palmt5_asoc,
 387         &palmt5_gpio_vbus,
 388 };
 389
 390 /* setup udc GPIOs initial state */
 391 static void __init palmt5_udc_init(void)
 392 {
 393         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 394                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 395                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 396         }
 397 }
 398
 399 static void __init palmt5_init(void)
 400 {
 401         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 402
 403         pxa_set_ffuart_info(NULL);
 404         pxa_set_btuart_info(NULL);
 405         pxa_set_stuart_info(NULL);
 406
 407         palmt5_pm_init();
 408         set_pxa_fb_info(&palmt5_lcd_screen);
 409         pxa_set_mci_info(&palmt5_mci_platform_data);
 410         palmt5_udc_init();
 411         pxa_set_ac97_info(&palmt5_ac97_pdata);
 412         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 413         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 414         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 415
 416         platform_add_devices(devices, ARRAY_SIZE(devices));
 417 }
 418
 419 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 420         .phys_io        = PALMT5_PHYS_IO_START,
 421         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 422         .boot_params    = 0xa0000100,
 423         .map_io         = pxa_map_io,
 424         .init_irq       = pxa27x_init_irq,
 425         .timer          = &pxa_timer,
 426         .init_machine   = palmt5_init
 427 MACHINE_END