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