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.h>
  25 #include <linux/pwm_backlight.h>
  26 #include <linux/gpio.h>
  27 #include <linux/wm97xx.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/pxa25x.h>
  36 #include <mach/audio.h>
  37 #include <mach/palmte2.h>
  38 #include <linux/platform_data/mmc-pxamci.h>
  39 #include <linux/platform_data/video-pxafb.h>
  40 #include <linux/platform_data/irda-pxaficp.h>
  41 #include <mach/udc.h>
  42 #include <linux/platform_data/asoc-palm27x.h>
  43
  44 #include "generic.h"
  45 #include "devices.h"
  46
  47 /******************************************************************************
  48  * Pin configuration
  49  ******************************************************************************/
  50 static unsigned long palmte2_pin_config[] __initdata = {
  51         /* MMC */
  52         GPIO6_MMC_CLK,
  53         GPIO8_MMC_CS0,
  54         GPIO10_GPIO,    /* SD detect */
  55         GPIO55_GPIO,    /* SD power */
  56         GPIO51_GPIO,    /* SD r/o switch */
  57
  58         /* AC97 */
  59         GPIO28_AC97_BITCLK,
  60         GPIO29_AC97_SDATA_IN_0,
  61         GPIO30_AC97_SDATA_OUT,
  62         GPIO31_AC97_SYNC,
  63
  64         /* PWM */
  65         GPIO16_PWM0_OUT,
  66
  67         /* USB */
  68         GPIO15_GPIO,    /* usb detect */
  69         GPIO53_GPIO,    /* usb power */
  70
  71         /* IrDA */
  72         GPIO48_GPIO,    /* ir disable */
  73         GPIO46_FICP_RXD,
  74         GPIO47_FICP_TXD,
  75
  76         /* LCD */
  77         GPIOxx_LCD_TFT_16BPP,
  78
  79         /* GPIO KEYS */
  80         GPIO5_GPIO,     /* notes */
  81         GPIO7_GPIO,     /* tasks */
  82         GPIO11_GPIO,    /* calendar */
  83         GPIO13_GPIO,    /* contacts */
  84         GPIO14_GPIO,    /* center */
  85         GPIO19_GPIO,    /* left */
  86         GPIO20_GPIO,    /* right */
  87         GPIO21_GPIO,    /* down */
  88         GPIO22_GPIO,    /* up */
  89
  90         /* MISC */
  91         GPIO1_RST,      /* reset */
  92         GPIO4_GPIO,     /* Hotsync button */
  93         GPIO9_GPIO,     /* power detect */
  94         GPIO15_GPIO,    /* earphone detect */
  95         GPIO37_GPIO,    /* LCD power */
  96         GPIO56_GPIO,    /* Backlight power */
  97 };
  98
  99 /******************************************************************************
 100  * SD/MMC card controller
 101  ******************************************************************************/
 102 static struct pxamci_platform_data palmte2_mci_platform_data = {
 103         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 104         .gpio_card_detect       = GPIO_NR_PALMTE2_SD_DETECT_N,
 105         .gpio_card_ro           = GPIO_NR_PALMTE2_SD_READONLY,
 106         .gpio_power             = GPIO_NR_PALMTE2_SD_POWER,
 107 };
 108
 109 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 110 /******************************************************************************
 111  * GPIO keys
 112  ******************************************************************************/
 113 static struct gpio_keys_button palmte2_pxa_buttons[] = {
 114         {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 115         {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 116         {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 117         {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 118         {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 119         {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 120         {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 121         {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 122         {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 123 };
 124
 125 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 126         .buttons        = palmte2_pxa_buttons,
 127         .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 128 };
 129
 130 static struct platform_device palmte2_pxa_keys = {
 131         .name   = "gpio-keys",
 132         .id     = -1,
 133         .dev    = {
 134                 .platform_data = &palmte2_pxa_keys_data,
 135         },
 136 };
 137 #endif
 138
 139 /******************************************************************************
 140  * Backlight
 141  ******************************************************************************/
 142 static struct pwm_lookup palmte2_pwm_lookup[] = {
 143         PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
 144                    PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
 145 };
 146
 147 static struct gpio palmte_bl_gpios[] = {
 148         { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
 149         { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
 150 };
 151
 152 static int palmte2_backlight_init(struct device *dev)
 153 {
 154         return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 155 }
 156
 157 static int palmte2_backlight_notify(struct device *dev, int brightness)
 158 {
 159         gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 160         gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 161         return brightness;
 162 }
 163
 164 static void palmte2_backlight_exit(struct device *dev)
 165 {
 166         gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 167 }
 168
 169 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 170         .max_brightness = PALMTE2_MAX_INTENSITY,
 171         .dft_brightness = PALMTE2_MAX_INTENSITY,
 172         .enable_gpio    = -1,
 173         .init           = palmte2_backlight_init,
 174         .notify         = palmte2_backlight_notify,
 175         .exit           = palmte2_backlight_exit,
 176 };
 177
 178 static struct platform_device palmte2_backlight = {
 179         .name   = "pwm-backlight",
 180         .dev    = {
 181                 .parent         = &pxa25x_device_pwm0.dev,
 182                 .platform_data  = &palmte2_backlight_data,
 183         },
 184 };
 185
 186 /******************************************************************************
 187  * IrDA
 188  ******************************************************************************/
 189 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 190         .gpio_pwdown            = GPIO_NR_PALMTE2_IR_DISABLE,
 191         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 192 };
 193
 194 /******************************************************************************
 195  * UDC
 196  ******************************************************************************/
 197 static struct gpio_vbus_mach_info palmte2_udc_info = {
 198         .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 199         .gpio_vbus_inverted     = 1,
 200         .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 201 };
 202
 203 static struct platform_device palmte2_gpio_vbus = {
 204         .name   = "gpio-vbus",
 205         .id     = -1,
 206         .dev    = {
 207                 .platform_data  = &palmte2_udc_info,
 208         },
 209 };
 210
 211 /******************************************************************************
 212  * Power supply
 213  ******************************************************************************/
 214 static int power_supply_init(struct device *dev)
 215 {
 216         int ret;
 217
 218         ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 219         if (ret)
 220                 goto err1;
 221         ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 222         if (ret)
 223                 goto err2;
 224
 225         return 0;
 226
 227 err2:
 228         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 229 err1:
 230         return ret;
 231 }
 232
 233 static int palmte2_is_ac_online(void)
 234 {
 235         return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 236 }
 237
 238 static void power_supply_exit(struct device *dev)
 239 {
 240         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 241 }
 242
 243 static char *palmte2_supplicants[] = {
 244         "main-battery",
 245 };
 246
 247 static struct pda_power_pdata power_supply_info = {
 248         .init            = power_supply_init,
 249         .is_ac_online    = palmte2_is_ac_online,
 250         .exit            = power_supply_exit,
 251         .supplied_to     = palmte2_supplicants,
 252         .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 253 };
 254
 255 static struct platform_device power_supply = {
 256         .name = "pda-power",
 257         .id   = -1,
 258         .dev  = {
 259                 .platform_data = &power_supply_info,
 260         },
 261 };
 262
 263 /******************************************************************************
 264  * WM97xx audio, battery
 265  ******************************************************************************/
 266 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
 267         .batt_aux       = WM97XX_AUX_ID3,
 268         .temp_aux       = WM97XX_AUX_ID2,
 269         .charge_gpio    = -1,
 270         .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 271         .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 272         .batt_mult      = 1000,
 273         .batt_div       = 414,
 274         .temp_mult      = 1,
 275         .temp_div       = 1,
 276         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 277         .batt_name      = "main-batt",
 278 };
 279
 280 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
 281         .batt_pdata     = &palmte2_batt_pdata,
 282 };
 283
 284 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
 285         .codec_pdata    = { &palmte2_wm97xx_pdata, },
 286 };
 287
 288 static struct palm27x_asoc_info palmte2_asoc_pdata = {
 289         .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 290 };
 291
 292 static struct platform_device palmte2_asoc = {
 293         .name = "palm27x-asoc",
 294         .id   = -1,
 295         .dev  = {
 296                 .platform_data = &palmte2_asoc_pdata,
 297         },
 298 };
 299
 300 /******************************************************************************
 301  * Framebuffer
 302  ******************************************************************************/
 303 static struct pxafb_mode_info palmte2_lcd_modes[] = {
 304 {
 305         .pixclock       = 77757,
 306         .xres           = 320,
 307         .yres           = 320,
 308         .bpp            = 16,
 309
 310         .left_margin    = 28,
 311         .right_margin   = 7,
 312         .upper_margin   = 7,
 313         .lower_margin   = 5,
 314
 315         .hsync_len      = 4,
 316         .vsync_len      = 1,
 317 },
 318 };
 319
 320 static struct pxafb_mach_info palmte2_lcd_screen = {
 321         .modes          = palmte2_lcd_modes,
 322         .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 323         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 324 };
 325
 326 /******************************************************************************
 327  * Machine init
 328  ******************************************************************************/
 329 static struct platform_device *devices[] __initdata = {
 330 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 331         &palmte2_pxa_keys,
 332 #endif
 333         &palmte2_backlight,
 334         &power_supply,
 335         &palmte2_asoc,
 336         &palmte2_gpio_vbus,
 337 };
 338
 339 /* setup udc GPIOs initial state */
 340 static void __init palmte2_udc_init(void)
 341 {
 342         if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 343                 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 344                 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 345         }
 346 }
 347
 348 static void __init palmte2_init(void)
 349 {
 350         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 351
 352         pxa_set_ffuart_info(NULL);
 353         pxa_set_btuart_info(NULL);
 354         pxa_set_stuart_info(NULL);
 355
 356         pxa_set_fb_info(NULL, &palmte2_lcd_screen);
 357         pxa_set_mci_info(&palmte2_mci_platform_data);
 358         palmte2_udc_init();
 359         pxa_set_ac97_info(&palmte2_ac97_pdata);
 360         pxa_set_ficp_info(&palmte2_ficp_platform_data);
 361
 362         pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
 363         platform_add_devices(devices, ARRAY_SIZE(devices));
 364 }
 365
 366 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 367         .atag_offset    = 0x100,
 368         .map_io         = pxa25x_map_io,
 369         .nr_irqs        = PXA_NR_IRQS,
 370         .init_irq       = pxa25x_init_irq,
 371         .handle_irq     = pxa25x_handle_irq,
 372         .init_time      = pxa_timer_init,
 373         .init_machine   = palmte2_init,
 374         .restart        = pxa_restart,
 375 MACHINE_END