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/gpio/machine.h>
  23 #include <linux/input.h>
  24 #include <linux/pda_power.h>
  25 #include <linux/pwm.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/gpio.h>
  28 #include <linux/wm97xx.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 "pxa25x.h"
  37 #include <mach/audio.h>
  38 #include "palmte2.h"
  39 #include <linux/platform_data/mmc-pxamci.h>
  40 #include <linux/platform_data/video-pxafb.h>
  41 #include <linux/platform_data/irda-pxaficp.h>
  42 #include "udc.h"
  43 #include <linux/platform_data/asoc-palm27x.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /******************************************************************************
  49  * Pin configuration
  50  ******************************************************************************/
  51 static unsigned long palmte2_pin_config[] __initdata = {
  52         /* MMC */
  53         GPIO6_MMC_CLK,
  54         GPIO8_MMC_CS0,
  55         GPIO10_GPIO,    /* SD detect */
  56         GPIO55_GPIO,    /* SD power */
  57         GPIO51_GPIO,    /* SD r/o switch */
  58
  59         /* AC97 */
  60         GPIO28_AC97_BITCLK,
  61         GPIO29_AC97_SDATA_IN_0,
  62         GPIO30_AC97_SDATA_OUT,
  63         GPIO31_AC97_SYNC,
  64
  65         /* PWM */
  66         GPIO16_PWM0_OUT,
  67
  68         /* USB */
  69         GPIO15_GPIO,    /* usb detect */
  70         GPIO53_GPIO,    /* usb power */
  71
  72         /* IrDA */
  73         GPIO48_GPIO,    /* ir disable */
  74         GPIO46_FICP_RXD,
  75         GPIO47_FICP_TXD,
  76
  77         /* LCD */
  78         GPIOxx_LCD_TFT_16BPP,
  79
  80         /* GPIO KEYS */
  81         GPIO5_GPIO,     /* notes */
  82         GPIO7_GPIO,     /* tasks */
  83         GPIO11_GPIO,    /* calendar */
  84         GPIO13_GPIO,    /* contacts */
  85         GPIO14_GPIO,    /* center */
  86         GPIO19_GPIO,    /* left */
  87         GPIO20_GPIO,    /* right */
  88         GPIO21_GPIO,    /* down */
  89         GPIO22_GPIO,    /* up */
  90
  91         /* MISC */
  92         GPIO1_RST,      /* reset */
  93         GPIO4_GPIO,     /* Hotsync button */
  94         GPIO9_GPIO,     /* power detect */
  95         GPIO15_GPIO,    /* earphone detect */
  96         GPIO37_GPIO,    /* LCD power */
  97         GPIO56_GPIO,    /* Backlight power */
  98 };
  99
 100 /******************************************************************************
 101  * SD/MMC card controller
 102  ******************************************************************************/
 103 static struct pxamci_platform_data palmte2_mci_platform_data = {
 104         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 105 };
 106
 107 static struct gpiod_lookup_table palmte2_mci_gpio_table = {
 108         .dev_id = "pxa2xx-mci.0",
 109         .table = {
 110                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_DETECT_N,
 111                             "cd", GPIO_ACTIVE_LOW),
 112                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_READONLY,
 113                             "wp", GPIO_ACTIVE_LOW),
 114                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTE2_SD_POWER,
 115                             "power", GPIO_ACTIVE_HIGH),
 116                 { },
 117         },
 118 };
 119
 120 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 121 /******************************************************************************
 122  * GPIO keys
 123  ******************************************************************************/
 124 static struct gpio_keys_button palmte2_pxa_buttons[] = {
 125         {KEY_F1,        GPIO_NR_PALMTE2_KEY_CONTACTS,   1, "Contacts" },
 126         {KEY_F2,        GPIO_NR_PALMTE2_KEY_CALENDAR,   1, "Calendar" },
 127         {KEY_F3,        GPIO_NR_PALMTE2_KEY_TASKS,      1, "Tasks" },
 128         {KEY_F4,        GPIO_NR_PALMTE2_KEY_NOTES,      1, "Notes" },
 129         {KEY_ENTER,     GPIO_NR_PALMTE2_KEY_CENTER,     1, "Center" },
 130         {KEY_LEFT,      GPIO_NR_PALMTE2_KEY_LEFT,       1, "Left" },
 131         {KEY_RIGHT,     GPIO_NR_PALMTE2_KEY_RIGHT,      1, "Right" },
 132         {KEY_DOWN,      GPIO_NR_PALMTE2_KEY_DOWN,       1, "Down" },
 133         {KEY_UP,        GPIO_NR_PALMTE2_KEY_UP,         1, "Up" },
 134 };
 135
 136 static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
 137         .buttons        = palmte2_pxa_buttons,
 138         .nbuttons       = ARRAY_SIZE(palmte2_pxa_buttons),
 139 };
 140
 141 static struct platform_device palmte2_pxa_keys = {
 142         .name   = "gpio-keys",
 143         .id     = -1,
 144         .dev    = {
 145                 .platform_data = &palmte2_pxa_keys_data,
 146         },
 147 };
 148 #endif
 149
 150 /******************************************************************************
 151  * Backlight
 152  ******************************************************************************/
 153 static struct pwm_lookup palmte2_pwm_lookup[] = {
 154         PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
 155                    PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
 156 };
 157
 158 static struct gpio palmte_bl_gpios[] = {
 159         { GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
 160         { GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
 161 };
 162
 163 static int palmte2_backlight_init(struct device *dev)
 164 {
 165         return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 166 }
 167
 168 static int palmte2_backlight_notify(struct device *dev, int brightness)
 169 {
 170         gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
 171         gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
 172         return brightness;
 173 }
 174
 175 static void palmte2_backlight_exit(struct device *dev)
 176 {
 177         gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
 178 }
 179
 180 static struct platform_pwm_backlight_data palmte2_backlight_data = {
 181         .max_brightness = PALMTE2_MAX_INTENSITY,
 182         .dft_brightness = PALMTE2_MAX_INTENSITY,
 183         .enable_gpio    = -1,
 184         .init           = palmte2_backlight_init,
 185         .notify         = palmte2_backlight_notify,
 186         .exit           = palmte2_backlight_exit,
 187 };
 188
 189 static struct platform_device palmte2_backlight = {
 190         .name   = "pwm-backlight",
 191         .dev    = {
 192                 .parent         = &pxa25x_device_pwm0.dev,
 193                 .platform_data  = &palmte2_backlight_data,
 194         },
 195 };
 196
 197 /******************************************************************************
 198  * IrDA
 199  ******************************************************************************/
 200 static struct pxaficp_platform_data palmte2_ficp_platform_data = {
 201         .gpio_pwdown            = GPIO_NR_PALMTE2_IR_DISABLE,
 202         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 203 };
 204
 205 /******************************************************************************
 206  * UDC
 207  ******************************************************************************/
 208 static struct gpio_vbus_mach_info palmte2_udc_info = {
 209         .gpio_vbus              = GPIO_NR_PALMTE2_USB_DETECT_N,
 210         .gpio_vbus_inverted     = 1,
 211         .gpio_pullup            = GPIO_NR_PALMTE2_USB_PULLUP,
 212 };
 213
 214 static struct platform_device palmte2_gpio_vbus = {
 215         .name   = "gpio-vbus",
 216         .id     = -1,
 217         .dev    = {
 218                 .platform_data  = &palmte2_udc_info,
 219         },
 220 };
 221
 222 /******************************************************************************
 223  * Power supply
 224  ******************************************************************************/
 225 static int power_supply_init(struct device *dev)
 226 {
 227         int ret;
 228
 229         ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
 230         if (ret)
 231                 goto err1;
 232         ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
 233         if (ret)
 234                 goto err2;
 235
 236         return 0;
 237
 238 err2:
 239         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 240 err1:
 241         return ret;
 242 }
 243
 244 static int palmte2_is_ac_online(void)
 245 {
 246         return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
 247 }
 248
 249 static void power_supply_exit(struct device *dev)
 250 {
 251         gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
 252 }
 253
 254 static char *palmte2_supplicants[] = {
 255         "main-battery",
 256 };
 257
 258 static struct pda_power_pdata power_supply_info = {
 259         .init            = power_supply_init,
 260         .is_ac_online    = palmte2_is_ac_online,
 261         .exit            = power_supply_exit,
 262         .supplied_to     = palmte2_supplicants,
 263         .num_supplicants = ARRAY_SIZE(palmte2_supplicants),
 264 };
 265
 266 static struct platform_device power_supply = {
 267         .name = "pda-power",
 268         .id   = -1,
 269         .dev  = {
 270                 .platform_data = &power_supply_info,
 271         },
 272 };
 273
 274 /******************************************************************************
 275  * WM97xx audio, battery
 276  ******************************************************************************/
 277 static struct wm97xx_batt_pdata palmte2_batt_pdata = {
 278         .batt_aux       = WM97XX_AUX_ID3,
 279         .temp_aux       = WM97XX_AUX_ID2,
 280         .charge_gpio    = -1,
 281         .max_voltage    = PALMTE2_BAT_MAX_VOLTAGE,
 282         .min_voltage    = PALMTE2_BAT_MIN_VOLTAGE,
 283         .batt_mult      = 1000,
 284         .batt_div       = 414,
 285         .temp_mult      = 1,
 286         .temp_div       = 1,
 287         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 288         .batt_name      = "main-batt",
 289 };
 290
 291 static struct wm97xx_pdata palmte2_wm97xx_pdata = {
 292         .batt_pdata     = &palmte2_batt_pdata,
 293 };
 294
 295 static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
 296         .codec_pdata    = { &palmte2_wm97xx_pdata, },
 297 };
 298
 299 static struct palm27x_asoc_info palmte2_asoc_pdata = {
 300         .jack_gpio      = GPIO_NR_PALMTE2_EARPHONE_DETECT,
 301 };
 302
 303 static struct platform_device palmte2_asoc = {
 304         .name = "palm27x-asoc",
 305         .id   = -1,
 306         .dev  = {
 307                 .platform_data = &palmte2_asoc_pdata,
 308         },
 309 };
 310
 311 /******************************************************************************
 312  * Framebuffer
 313  ******************************************************************************/
 314 static struct pxafb_mode_info palmte2_lcd_modes[] = {
 315 {
 316         .pixclock       = 77757,
 317         .xres           = 320,
 318         .yres           = 320,
 319         .bpp            = 16,
 320
 321         .left_margin    = 28,
 322         .right_margin   = 7,
 323         .upper_margin   = 7,
 324         .lower_margin   = 5,
 325
 326         .hsync_len      = 4,
 327         .vsync_len      = 1,
 328 },
 329 };
 330
 331 static struct pxafb_mach_info palmte2_lcd_screen = {
 332         .modes          = palmte2_lcd_modes,
 333         .num_modes      = ARRAY_SIZE(palmte2_lcd_modes),
 334         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 335 };
 336
 337 /******************************************************************************
 338  * Machine init
 339  ******************************************************************************/
 340 static struct platform_device *devices[] __initdata = {
 341 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 342         &palmte2_pxa_keys,
 343 #endif
 344         &palmte2_backlight,
 345         &power_supply,
 346         &palmte2_asoc,
 347         &palmte2_gpio_vbus,
 348 };
 349
 350 /* setup udc GPIOs initial state */
 351 static void __init palmte2_udc_init(void)
 352 {
 353         if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
 354                 gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
 355                 gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
 356         }
 357 }
 358
 359 static void __init palmte2_init(void)
 360 {
 361         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
 362
 363         pxa_set_ffuart_info(NULL);
 364         pxa_set_btuart_info(NULL);
 365         pxa_set_stuart_info(NULL);
 366
 367         pxa_set_fb_info(NULL, &palmte2_lcd_screen);
 368         gpiod_add_lookup_table(&palmte2_mci_gpio_table);
 369         pxa_set_mci_info(&palmte2_mci_platform_data);
 370         palmte2_udc_init();
 371         pxa_set_ac97_info(&palmte2_ac97_pdata);
 372         pxa_set_ficp_info(&palmte2_ficp_platform_data);
 373
 374         pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
 375         platform_add_devices(devices, ARRAY_SIZE(devices));
 376 }
 377
 378 MACHINE_START(PALMTE2, "Palm Tungsten|E2")
 379         .atag_offset    = 0x100,
 380         .map_io         = pxa25x_map_io,
 381         .nr_irqs        = PXA_NR_IRQS,
 382         .init_irq       = pxa25x_init_irq,
 383         .handle_irq     = pxa25x_handle_irq,
 384         .init_time      = pxa_timer_init,
 385         .init_machine   = palmte2_init,
 386         .restart        = pxa_restart,
 387 MACHINE_END