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/memblock.h>
  25 #include <linux/pda_power.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/gpio.h>
  28 #include <linux/wm97xx_batt.h>
  29 #include <linux/power_supply.h>
  30 #include <linux/usb/gpio_vbus.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <mach/pxa27x.h>
  37 #include <mach/audio.h>
  38 #include <mach/palmt5.h>
  39 #include <mach/mmc.h>
  40 #include <mach/pxafb.h>
  41 #include <mach/irda.h>
  42 #include <mach/pxa27x_keypad.h>
  43 #include <mach/udc.h>
  44 #include <mach/palmasoc.h>
  45
  46 #include "generic.h"
  47 #include "devices.h"
  48
  49 /******************************************************************************
  50  * Pin configuration
  51  ******************************************************************************/
  52 static unsigned long palmt5_pin_config[] __initdata = {
  53         /* MMC */
  54         GPIO32_MMC_CLK,
  55         GPIO92_MMC_DAT_0,
  56         GPIO109_MMC_DAT_1,
  57         GPIO110_MMC_DAT_2,
  58         GPIO111_MMC_DAT_3,
  59         GPIO112_MMC_CMD,
  60         GPIO14_GPIO,    /* SD detect */
  61         GPIO114_GPIO,   /* SD power */
  62         GPIO115_GPIO,   /* SD r/o switch */
  63
  64         /* AC97 */
  65         GPIO28_AC97_BITCLK,
  66         GPIO29_AC97_SDATA_IN_0,
  67         GPIO30_AC97_SDATA_OUT,
  68         GPIO31_AC97_SYNC,
  69         GPIO89_AC97_SYSCLK,
  70         GPIO95_AC97_nRESET,
  71
  72         /* IrDA */
  73         GPIO40_GPIO,    /* ir disable */
  74         GPIO46_FICP_RXD,
  75         GPIO47_FICP_TXD,
  76
  77         /* USB */
  78         GPIO15_GPIO,    /* usb detect */
  79         GPIO93_GPIO,    /* usb power */
  80
  81         /* MATRIX KEYPAD */
  82         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
  83         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
  84         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
  85         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
  86         GPIO103_KP_MKOUT_0,
  87         GPIO104_KP_MKOUT_1,
  88         GPIO105_KP_MKOUT_2,
  89
  90         /* LCD */
  91         GPIOxx_LCD_TFT_16BPP,
  92
  93         /* PWM */
  94         GPIO16_PWM0_OUT,
  95
  96         /* FFUART */
  97         GPIO34_FFUART_RXD,
  98         GPIO39_FFUART_TXD,
  99
 100         /* MISC */
 101         GPIO10_GPIO,    /* hotsync button */
 102         GPIO90_GPIO,    /* power detect */
 103         GPIO107_GPIO,   /* earphone detect */
 104 };
 105
 106 /******************************************************************************
 107  * SD/MMC card controller
 108  ******************************************************************************/
 109 static struct pxamci_platform_data palmt5_mci_platform_data = {
 110         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 111         .gpio_card_detect       = GPIO_NR_PALMT5_SD_DETECT_N,
 112         .gpio_card_ro           = GPIO_NR_PALMT5_SD_READONLY,
 113         .gpio_power             = GPIO_NR_PALMT5_SD_POWER,
 114         .detect_delay_ms        = 200,
 115 };
 116
 117 /******************************************************************************
 118  * GPIO keyboard
 119  ******************************************************************************/
 120 static unsigned int palmt5_matrix_keys[] = {
 121         KEY(0, 0, KEY_POWER),
 122         KEY(0, 1, KEY_F1),
 123         KEY(0, 2, KEY_ENTER),
 124
 125         KEY(1, 0, KEY_F2),
 126         KEY(1, 1, KEY_F3),
 127         KEY(1, 2, KEY_F4),
 128
 129         KEY(2, 0, KEY_UP),
 130         KEY(2, 2, KEY_DOWN),
 131
 132         KEY(3, 0, KEY_RIGHT),
 133         KEY(3, 2, KEY_LEFT),
 134 };
 135
 136 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
 137         .matrix_key_rows        = 4,
 138         .matrix_key_cols        = 3,
 139         .matrix_key_map         = palmt5_matrix_keys,
 140         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
 141
 142         .debounce_interval      = 30,
 143 };
 144
 145 /******************************************************************************
 146  * GPIO keys
 147  ******************************************************************************/
 148 static struct gpio_keys_button palmt5_pxa_buttons[] = {
 149         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 150 };
 151
 152 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
 153         .buttons        = palmt5_pxa_buttons,
 154         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
 155 };
 156
 157 static struct platform_device palmt5_pxa_keys = {
 158         .name   = "gpio-keys",
 159         .id     = -1,
 160         .dev    = {
 161                 .platform_data = &palmt5_pxa_keys_data,
 162         },
 163 };
 164
 165 /******************************************************************************
 166  * Backlight
 167  ******************************************************************************/
 168 static int palmt5_backlight_init(struct device *dev)
 169 {
 170         int ret;
 171
 172         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
 173         if (ret)
 174                 goto err;
 175         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
 176         if (ret)
 177                 goto err2;
 178         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
 179         if (ret)
 180                 goto err2;
 181         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
 182         if (ret)
 183                 goto err3;
 184
 185         return 0;
 186 err3:
 187         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 188 err2:
 189         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 190 err:
 191         return ret;
 192 }
 193
 194 static int palmt5_backlight_notify(struct device *dev, int brightness)
 195 {
 196         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
 197         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
 198         return brightness;
 199 }
 200
 201 static void palmt5_backlight_exit(struct device *dev)
 202 {
 203         gpio_free(GPIO_NR_PALMT5_BL_POWER);
 204         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
 205 }
 206
 207 static struct platform_pwm_backlight_data palmt5_backlight_data = {
 208         .pwm_id         = 0,
 209         .max_brightness = PALMT5_MAX_INTENSITY,
 210         .dft_brightness = PALMT5_MAX_INTENSITY,
 211         .pwm_period_ns  = PALMT5_PERIOD_NS,
 212         .init           = palmt5_backlight_init,
 213         .notify         = palmt5_backlight_notify,
 214         .exit           = palmt5_backlight_exit,
 215 };
 216
 217 static struct platform_device palmt5_backlight = {
 218         .name   = "pwm-backlight",
 219         .dev    = {
 220                 .parent         = &pxa27x_device_pwm0.dev,
 221                 .platform_data  = &palmt5_backlight_data,
 222         },
 223 };
 224
 225 /******************************************************************************
 226  * IrDA
 227  ******************************************************************************/
 228 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
 229         .gpio_pwdown            = GPIO_NR_PALMT5_IR_DISABLE,
 230         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 231 };
 232
 233 /******************************************************************************
 234  * UDC
 235  ******************************************************************************/
 236 static struct gpio_vbus_mach_info palmt5_udc_info = {
 237         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
 238         .gpio_vbus_inverted     = 1,
 239         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
 240 };
 241
 242 static struct platform_device palmt5_gpio_vbus = {
 243         .name   = "gpio-vbus",
 244         .id     = -1,
 245         .dev    = {
 246                 .platform_data  = &palmt5_udc_info,
 247         },
 248 };
 249
 250 /******************************************************************************
 251  * Power supply
 252  ******************************************************************************/
 253 static int power_supply_init(struct device *dev)
 254 {
 255         int ret;
 256
 257         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
 258         if (ret)
 259                 goto err1;
 260         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
 261         if (ret)
 262                 goto err2;
 263
 264         return 0;
 265 err2:
 266         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 267 err1:
 268         return ret;
 269 }
 270
 271 static int palmt5_is_ac_online(void)
 272 {
 273         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
 274 }
 275
 276 static void power_supply_exit(struct device *dev)
 277 {
 278         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
 279 }
 280
 281 static char *palmt5_supplicants[] = {
 282         "main-battery",
 283 };
 284
 285 static struct pda_power_pdata power_supply_info = {
 286         .init            = power_supply_init,
 287         .is_ac_online    = palmt5_is_ac_online,
 288         .exit            = power_supply_exit,
 289         .supplied_to     = palmt5_supplicants,
 290         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
 291 };
 292
 293 static struct platform_device power_supply = {
 294         .name = "pda-power",
 295         .id   = -1,
 296         .dev  = {
 297                 .platform_data = &power_supply_info,
 298         },
 299 };
 300
 301 /******************************************************************************
 302  * WM97xx battery
 303  ******************************************************************************/
 304 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 305         .batt_aux       = WM97XX_AUX_ID3,
 306         .temp_aux       = WM97XX_AUX_ID2,
 307         .charge_gpio    = -1,
 308         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
 309         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
 310         .batt_mult      = 1000,
 311         .batt_div       = 414,
 312         .temp_mult      = 1,
 313         .temp_div       = 1,
 314         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 315         .batt_name      = "main-batt",
 316 };
 317
 318 /******************************************************************************
 319  * aSoC audio
 320  ******************************************************************************/
 321 static struct palm27x_asoc_info palmt5_asoc_pdata = {
 322         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
 323 };
 324
 325 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
 326         .reset_gpio     = 95,
 327 };
 328
 329 static struct platform_device palmt5_asoc = {
 330         .name = "palm27x-asoc",
 331         .id   = -1,
 332         .dev  = {
 333                 .platform_data = &palmt5_asoc_pdata,
 334         },
 335 };
 336
 337 /******************************************************************************
 338  * Framebuffer
 339  ******************************************************************************/
 340 static struct pxafb_mode_info palmt5_lcd_modes[] = {
 341 {
 342         .pixclock       = 57692,
 343         .xres           = 320,
 344         .yres           = 480,
 345         .bpp            = 16,
 346
 347         .left_margin    = 32,
 348         .right_margin   = 1,
 349         .upper_margin   = 7,
 350         .lower_margin   = 1,
 351
 352         .hsync_len      = 4,
 353         .vsync_len      = 1,
 354 },
 355 };
 356
 357 static struct pxafb_mach_info palmt5_lcd_screen = {
 358         .modes          = palmt5_lcd_modes,
 359         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
 360         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 361 };
 362
 363 /******************************************************************************
 364  * Power management - standby
 365  ******************************************************************************/
 366 static void __init palmt5_pm_init(void)
 367 {
 368         static u32 resume[] = {
 369                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 370                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 371                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 372         };
 373
 374         /* copy the bootloader */
 375         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
 376 }
 377
 378 /******************************************************************************
 379  * Machine init
 380  ******************************************************************************/
 381 static struct platform_device *devices[] __initdata = {
 382 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 383         &palmt5_pxa_keys,
 384 #endif
 385         &palmt5_backlight,
 386         &power_supply,
 387         &palmt5_asoc,
 388         &palmt5_gpio_vbus,
 389 };
 390
 391 /* setup udc GPIOs initial state */
 392 static void __init palmt5_udc_init(void)
 393 {
 394         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
 395                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
 396                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
 397         }
 398 }
 399
 400 static void __init palmt5_reserve(void)
 401 {
 402         memblock_reserve(0xa0200000, 0x1000);
 403 }
 404
 405 static void __init palmt5_init(void)
 406 {
 407         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
 408
 409         pxa_set_ffuart_info(NULL);
 410         pxa_set_btuart_info(NULL);
 411         pxa_set_stuart_info(NULL);
 412
 413         palmt5_pm_init();
 414         set_pxa_fb_info(&palmt5_lcd_screen);
 415         pxa_set_mci_info(&palmt5_mci_platform_data);
 416         palmt5_udc_init();
 417         pxa_set_ac97_info(&palmt5_ac97_pdata);
 418         pxa_set_ficp_info(&palmt5_ficp_platform_data);
 419         pxa_set_keypad_info(&palmt5_keypad_platform_data);
 420         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 421
 422         platform_add_devices(devices, ARRAY_SIZE(devices));
 423 }
 424
 425 MACHINE_START(PALMT5, "Palm Tungsten|T5")
 426         .phys_io        = PALMT5_PHYS_IO_START,
 427         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 428         .boot_params    = 0xa0000100,
 429         .map_io         = pxa_map_io,
 430         .reserve        = palmt5_reserve,
 431         .init_irq       = pxa27x_init_irq,
 432         .timer          = &pxa_timer,
 433         .init_machine   = palmt5_init
 434 MACHINE_END