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         GPIO58_LCD_LDD_0,
  91         GPIO59_LCD_LDD_1,
  92         GPIO60_LCD_LDD_2,
  93         GPIO61_LCD_LDD_3,
  94         GPIO62_LCD_LDD_4,
  95         GPIO63_LCD_LDD_5,
  96         GPIO64_LCD_LDD_6,
  97         GPIO65_LCD_LDD_7,
  98         GPIO66_LCD_LDD_8,
  99         GPIO67_LCD_LDD_9,
 100         GPIO68_LCD_LDD_10,
 101         GPIO69_LCD_LDD_11,
 102         GPIO70_LCD_LDD_12,
 103         GPIO71_LCD_LDD_13,
 104         GPIO72_LCD_LDD_14,
 105         GPIO73_LCD_LDD_15,
 106         GPIO74_LCD_FCLK,
 107         GPIO75_LCD_LCLK,
 108         GPIO76_LCD_PCLK,
 109         GPIO77_LCD_BIAS,
 110
 111         /* PWM */
 112         GPIO16_PWM0_OUT,
 113
 114         /* FFUART */
 115         GPIO34_FFUART_RXD,
 116         GPIO39_FFUART_TXD,
 117
 118         /* MISC */
 119         GPIO10_GPIO,    /* hotsync button */
 120         GPIO90_GPIO,    /* power detect */
 121         GPIO107_GPIO,   /* earphone detect */
 122 };
 123
 124 /******************************************************************************
 125  * SD/MMC card controller
 126  ******************************************************************************/
 127 static struct pxamci_platform_data palmt5_mci_platform_data = {
 128         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 129         .gpio_card_detect       = GPIO_NR_PALMT5_SD_DETECT_N,
 130         .gpio_card_ro           = GPIO_NR_PALMT5_SD_READONLY,
 131         .gpio_power             = GPIO_NR_PALMT5_SD_POWER,
 132         .detect_delay           = 20,
 133 };
 134
 135 /******************************************************************************
 136  * GPIO keyboard
 137  ******************************************************************************/
 138 static unsigned int palmt5_matrix_keys[] = {
 139         KEY(0, 0, KEY_POWER),
 140         KEY(0, 1, KEY_F1),
 141         KEY(0, 2, KEY_ENTER),
 142
 143         KEY(1, 0, KEY_F2),
 144         KEY(1, 1, KEY_F3),
 145         KEY(1, 2, KEY_F4),
 146
 147         KEY(2, 0, KEY_UP),
 148         KEY(2, 2, KEY_DOWN),
 149
 150         KEY(3, 0, KEY_RIGHT),
 151         KEY(3, 2, KEY_LEFT),
 152 };
 153
 154 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 155         .matrix_key_rows        = 4,
 156         .matrix_key_cols        = 3,
 157         .matrix_key_map         = palmt5_matrix_keys,
 158         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 159
 160         .debounce_interval      = 30,
 161 };
 162
 163 /******************************************************************************
 164  * GPIO keys
 165  ******************************************************************************/
 166 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 167         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 168 };
 169
 170 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 171         .buttons        = palmt5_pxa_buttons,
 172         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 173 };
 174
 175 static struct platform_device palmt5_pxa_keys = {
 176         .name   = "gpio-keys",
 177         .id     = -1,
 178         .dev    = {
 179                 .platform_data = &palmt5_pxa_keys_data,
 180         },
 181 };
 182
 183 /******************************************************************************
 184  * Backlight
 185  ******************************************************************************/
 186 static int palmt5_backlight_init(struct device *dev)
 187 {
 188         int ret;
 189
 190         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 191         if (ret)
 192                 goto err;
 193         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 194         if (ret)
 195                 goto err2;
 196         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 197         if (ret)
 198                 goto err2;
 199         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 200         if (ret)
 201                 goto err3;
 202
 203         return 0;
 204 err3:
 205         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 206 err2:
 207         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 208 err:
 209         return ret;
 210 }
 211
 212 static int palmt5_backlight_notify(struct device *dev, int brightness)
 213 {
 214         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 215         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 216         return brightness;
 217 }
 218
 219 static void palmt5_backlight_exit(struct device *dev)
 220 {
 221         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 222         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 223 }
 224
 225 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 226         .pwm_id         = 0,
 227         .max_brightness = PALMT5_MAX_INTENSITY,
 228         .dft_brightness = PALMT5_MAX_INTENSITY,
 229         .pwm_period_ns  = PALMT5_PERIOD_NS,
 230         .init           = palmt5_backlight_init,
 231         .notify         = palmt5_backlight_notify,
 232         .exit           = palmt5_backlight_exit,
 233 };
 234
 235 static struct platform_device palmt5_backlight = {
 236         .name   = "pwm-backlight",
 237         .dev    = {
 238                 .parent         = &pxa27x_device_pwm0.dev,
 239                 .platform_data  = &palmt5_backlight_data,
 240         },
 241 };
 242
 243 /******************************************************************************
 244  * IrDA
 245  ******************************************************************************/
 246 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 247         .gpio_pwdown            = GPIO_NR_PALMT5_IR_DISABLE,
 248         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 249 };
 250
 251 /******************************************************************************
 252  * UDC
 253  ******************************************************************************/
 254 static struct gpio_vbus_mach_info palmt5_udc_info = {
 255         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 256         .gpio_vbus_inverted     = 1,
 257         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 258 };
 259
 260 static struct platform_device palmt5_gpio_vbus = {
 261         .name   = "gpio-vbus",
 262         .id     = -1,
 263         .dev    = {
 264                 .platform_data  = &palmt5_udc_info,
 265         },
 266 };
 267
 268 /******************************************************************************
 269  * Power supply
 270  ******************************************************************************/
 271 static int power_supply_init(struct device *dev)
 272 {
 273         int ret;
 274
 275         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 276         if (ret)
 277                 goto err1;
 278         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 279         if (ret)
 280                 goto err2;
 281
 282         return 0;
 283 err2:
 284         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 285 err1:
 286         return ret;
 287 }
 288
 289 static int palmt5_is_ac_online(void)
 290 {
 291         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 292 }
 293
 294 static void power_supply_exit(struct device *dev)
 295 {
 296         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 297 }
 298
 299 static char *palmt5_supplicants[] = {
 300         "main-battery",
 301 };
 302
 303 static struct pda_power_pdata power_supply_info = {
 304         .init            = power_supply_init,
 305         .is_ac_online    = palmt5_is_ac_online,
 306         .exit            = power_supply_exit,
 307         .supplied_to     = palmt5_supplicants,
 308         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 309 };
 310
 311 static struct platform_device power_supply = {
 312         .name = "pda-power",
 313         .id   = -1,
 314         .dev  = {
 315                 .platform_data = &power_supply_info,
 316         },
 317 };
 318
 319 /******************************************************************************
 320  * WM97xx battery
 321  ******************************************************************************/
 322 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 323         .batt_aux       = WM97XX_AUX_ID3,
 324         .temp_aux       = WM97XX_AUX_ID2,
 325         .charge_gpio    = -1,
 326         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 327         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 328         .batt_mult      = 1000,
 329         .batt_div       = 414,
 330         .temp_mult      = 1,
 331         .temp_div       = 1,
 332         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 333         .batt_name      = "main-batt",
 334 };
 335
 336 /******************************************************************************
 337  * aSoC audio
 338  ******************************************************************************/
 339 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 340         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 341 };
 342
 343 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 344         .reset_gpio     = 95,
 345 };
 346
 347 static struct platform_device palmt5_asoc = {
 348         .name = "palm27x-asoc",
 349         .id   = -1,
 350         .dev  = {
 351                 .platform_data = &palmt5_asoc_pdata,
 352         },
 353 };
 354
 355 /******************************************************************************
 356  * Framebuffer
 357  ******************************************************************************/
 358 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 359 {
 360         .pixclock       = 57692,
 361         .xres           = 320,
 362         .yres           = 480,
 363         .bpp            = 16,
 364
 365         .left_margin    = 32,
 366         .right_margin   = 1,
 367         .upper_margin   = 7,
 368         .lower_margin   = 1,
 369
 370         .hsync_len      = 4,
 371         .vsync_len      = 1,
 372 },
 373 };
 374
 375 static struct pxafb_mach_info palmt5_lcd_screen = {
 376         .modes          = palmt5_lcd_modes,
 377         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 378         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 379 };
 380
 381 /******************************************************************************
 382  * Power management - standby
 383  ******************************************************************************/
 384 static void __init palmt5_pm_init(void)
 385 {
 386         static u32 resume[] = {
 387                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 388                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 389                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 390         };
 391
 392         /* copy the bootloader */
 393         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 394 }
 395
 396 /******************************************************************************
 397  * Machine init
 398  ******************************************************************************/
 399 static struct platform_device *devices[] __initdata = {
 400 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 401         &palmt5_pxa_keys,
 402 #endif
 403         &palmt5_backlight,
 404         &power_supply,
 405         &palmt5_asoc,
 406         &palmt5_gpio_vbus,
 407 };
 408
 409 /* setup udc GPIOs initial state */
 410 static void __init palmt5_udc_init(void)
 411 {
 412         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 413                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 414                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 415         }
 416 }
 417
 418 static void __init palmt5_init(void)
 419 {
 420         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 421
 422         pxa_set_ffuart_info(NULL);
 423         pxa_set_btuart_info(NULL);
 424         pxa_set_stuart_info(NULL);
 425
 426         palmt5_pm_init();
 427         set_pxa_fb_info(&palmt5_lcd_screen);
 428         pxa_set_mci_info(&palmt5_mci_platform_data);
 429         palmt5_udc_init();
 430         pxa_set_ac97_info(&palmt5_ac97_pdata);
 431         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 432         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 433         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 434
 435         platform_add_devices(devices, ARRAY_SIZE(devices));
 436 }
 437
 438 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 439         .phys_io        = PALMT5_PHYS_IO_START,
 440         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 441         .boot_params    = 0xa0000100,
 442         .map_io         = pxa_map_io,
 443         .init_irq       = pxa27x_init_irq,
 444         .timer          = &pxa_timer,
 445         .init_machine   = palmt5_init
 446 MACHINE_END