Robert Jarzmik | eda6f6e | 2008-08-17 09:34:30 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Handles the Mitac Mio A701 Board |
| 3 | * |
| 4 | * Copyright (C) 2008 Robert Jarzmik |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/platform_device.h> |
| 25 | #include <linux/sysdev.h> |
| 26 | #include <linux/input.h> |
| 27 | #include <linux/delay.h> |
| 28 | #include <linux/gpio_keys.h> |
| 29 | #include <linux/pwm_backlight.h> |
| 30 | #include <linux/rtc.h> |
| 31 | #include <linux/leds.h> |
| 32 | #include <linux/gpio.h> |
| 33 | #include <linux/interrupt.h> |
| 34 | #include <linux/irq.h> |
| 35 | #include <linux/pda_power.h> |
| 36 | #include <linux/power_supply.h> |
| 37 | #include <linux/wm97xx.h> |
| 38 | #include <linux/mtd/physmap.h> |
| 39 | |
| 40 | #include <asm/mach-types.h> |
| 41 | #include <asm/mach/arch.h> |
| 42 | #include <mach/mfp-pxa27x.h> |
| 43 | #include <mach/pxa27x_keypad.h> |
| 44 | #include <mach/pxafb.h> |
| 45 | #include <mach/pxa2xx-regs.h> |
| 46 | #include <mach/mmc.h> |
| 47 | #include <mach/udc.h> |
| 48 | #include <mach/pxa27x-udc.h> |
| 49 | |
| 50 | #include <mach/mioa701.h> |
| 51 | |
| 52 | #include "generic.h" |
| 53 | #include "devices.h" |
| 54 | |
| 55 | static unsigned long mioa701_pin_config[] = { |
| 56 | /* Mio global */ |
| 57 | MIO_CFG_OUT(GPIO9_CHARGE_nEN, AF0, DRIVE_LOW), |
| 58 | MIO_CFG_OUT(GPIO18_POWEROFF, AF0, DRIVE_LOW), |
| 59 | MFP_CFG_OUT(GPIO3, AF0, DRIVE_HIGH), |
| 60 | MFP_CFG_OUT(GPIO4, AF0, DRIVE_HIGH), |
| 61 | |
| 62 | /* Backlight PWM 0 */ |
| 63 | GPIO16_PWM0_OUT, |
| 64 | |
| 65 | /* MMC */ |
| 66 | GPIO32_MMC_CLK, |
| 67 | GPIO92_MMC_DAT_0, |
| 68 | GPIO109_MMC_DAT_1, |
| 69 | GPIO110_MMC_DAT_2, |
| 70 | GPIO111_MMC_DAT_3, |
| 71 | GPIO112_MMC_CMD, |
| 72 | MIO_CFG_IN(GPIO78_SDIO_RO, AF0), |
| 73 | MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0), |
| 74 | MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW), |
| 75 | |
| 76 | /* USB */ |
| 77 | MIO_CFG_IN(GPIO13_USB_DETECT, AF0), |
| 78 | MIO_CFG_OUT(GPIO22_USB_ENABLE, AF0, DRIVE_LOW), |
| 79 | |
| 80 | /* LCD */ |
| 81 | GPIO58_LCD_LDD_0, |
| 82 | GPIO59_LCD_LDD_1, |
| 83 | GPIO60_LCD_LDD_2, |
| 84 | GPIO61_LCD_LDD_3, |
| 85 | GPIO62_LCD_LDD_4, |
| 86 | GPIO63_LCD_LDD_5, |
| 87 | GPIO64_LCD_LDD_6, |
| 88 | GPIO65_LCD_LDD_7, |
| 89 | GPIO66_LCD_LDD_8, |
| 90 | GPIO67_LCD_LDD_9, |
| 91 | GPIO68_LCD_LDD_10, |
| 92 | GPIO69_LCD_LDD_11, |
| 93 | GPIO70_LCD_LDD_12, |
| 94 | GPIO71_LCD_LDD_13, |
| 95 | GPIO72_LCD_LDD_14, |
| 96 | GPIO73_LCD_LDD_15, |
| 97 | GPIO74_LCD_FCLK, |
| 98 | GPIO75_LCD_LCLK, |
| 99 | GPIO76_LCD_PCLK, |
| 100 | |
| 101 | /* Bluetooth */ |
| 102 | GPIO44_BTUART_CTS, |
| 103 | GPIO42_BTUART_RXD, |
| 104 | GPIO45_BTUART_RTS, |
| 105 | GPIO43_BTUART_TXD, |
| 106 | MIO_CFG_OUT(GPIO83_BT_ON, AF0, DRIVE_LOW), |
| 107 | |
| 108 | /* GPS */ |
| 109 | MIO_CFG_OUT(GPIO23_GPS_UNKNOWN1, AF0, DRIVE_LOW), |
| 110 | MIO_CFG_OUT(GPIO26_GPS_ON, AF0, DRIVE_LOW), |
| 111 | MIO_CFG_OUT(GPIO27_GPS_RESET, AF0, DRIVE_LOW), |
| 112 | MIO_CFG_OUT(GPIO106_GPS_UNKNOWN2, AF0, DRIVE_LOW), |
| 113 | MIO_CFG_OUT(GPIO107_GPS_UNKNOWN3, AF0, DRIVE_LOW), |
| 114 | GPIO46_STUART_RXD, |
| 115 | GPIO47_STUART_TXD, |
| 116 | |
| 117 | /* GSM */ |
| 118 | MIO_CFG_OUT(GPIO24_GSM_MOD_RESET_CMD, AF0, DRIVE_LOW), |
| 119 | MIO_CFG_OUT(GPIO88_GSM_nMOD_ON_CMD, AF0, DRIVE_HIGH), |
| 120 | MIO_CFG_OUT(GPIO90_GSM_nMOD_OFF_CMD, AF0, DRIVE_HIGH), |
| 121 | MIO_CFG_OUT(GPIO114_GSM_nMOD_DTE_UART_STATE, AF0, DRIVE_HIGH), |
| 122 | MIO_CFG_IN(GPIO25_GSM_MOD_ON_STATE, AF0), |
| 123 | MIO_CFG_IN(GPIO113_GSM_EVENT, AF0) | WAKEUP_ON_EDGE_BOTH, |
| 124 | GPIO34_FFUART_RXD, |
| 125 | GPIO35_FFUART_CTS, |
| 126 | GPIO36_FFUART_DCD, |
| 127 | GPIO37_FFUART_DSR, |
| 128 | GPIO39_FFUART_TXD, |
| 129 | GPIO40_FFUART_DTR, |
| 130 | GPIO41_FFUART_RTS, |
| 131 | |
| 132 | /* Sound */ |
| 133 | GPIO89_AC97_SYSCLK, |
| 134 | MIO_CFG_IN(GPIO12_HPJACK_INSERT, AF0), |
| 135 | |
| 136 | /* Leds */ |
| 137 | MIO_CFG_OUT(GPIO10_LED_nCharging, AF0, DRIVE_HIGH), |
| 138 | MIO_CFG_OUT(GPIO97_LED_nBlue, AF0, DRIVE_HIGH), |
| 139 | MIO_CFG_OUT(GPIO98_LED_nOrange, AF0, DRIVE_HIGH), |
| 140 | MIO_CFG_OUT(GPIO82_LED_nVibra, AF0, DRIVE_HIGH), |
| 141 | MIO_CFG_OUT(GPIO115_LED_nKeyboard, AF0, DRIVE_HIGH), |
| 142 | |
| 143 | /* Keyboard */ |
| 144 | MIO_CFG_IN(GPIO0_KEY_POWER, AF0) | WAKEUP_ON_EDGE_BOTH, |
| 145 | MIO_CFG_IN(GPIO93_KEY_VOLUME_UP, AF0), |
| 146 | MIO_CFG_IN(GPIO94_KEY_VOLUME_DOWN, AF0), |
| 147 | GPIO100_KP_MKIN_0, |
| 148 | GPIO101_KP_MKIN_1, |
| 149 | GPIO102_KP_MKIN_2, |
| 150 | GPIO103_KP_MKOUT_0, |
| 151 | GPIO104_KP_MKOUT_1, |
| 152 | GPIO105_KP_MKOUT_2, |
| 153 | |
| 154 | /* Unknown */ |
| 155 | MFP_CFG_IN(GPIO14, AF0), |
| 156 | MFP_CFG_IN(GPIO20, AF0), |
| 157 | MFP_CFG_IN(GPIO21, AF0), |
| 158 | MFP_CFG_IN(GPIO33, AF0), |
| 159 | MFP_CFG_OUT(GPIO49, AF0, DRIVE_HIGH), |
| 160 | MFP_CFG_OUT(GPIO57, AF0, DRIVE_HIGH), |
| 161 | MFP_CFG_OUT(GPIO77, AF0, DRIVE_HIGH), |
| 162 | MFP_CFG_IN(GPIO80, AF0), |
| 163 | MFP_CFG_OUT(GPIO86, AF0, DRIVE_HIGH), |
| 164 | MFP_CFG_IN(GPIO96, AF0), |
| 165 | MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH), |
| 166 | }; |
| 167 | |
| 168 | #define MIO_GPIO_IN(num, _desc) \ |
| 169 | { .gpio = (num), .dir = 0, .desc = (_desc) } |
| 170 | #define MIO_GPIO_OUT(num, _init, _desc) \ |
| 171 | { .gpio = (num), .dir = 1, .init = (_init), .desc = (_desc) } |
| 172 | struct gpio_ress { |
| 173 | unsigned gpio : 8; |
| 174 | unsigned dir : 1; |
| 175 | unsigned init : 1; |
| 176 | char *desc; |
| 177 | }; |
| 178 | |
| 179 | static int mio_gpio_request(struct gpio_ress *gpios, int size) |
| 180 | { |
| 181 | int i, rc = 0; |
| 182 | int gpio; |
| 183 | int dir; |
| 184 | |
| 185 | for (i = 0; (!rc) && (i < size); i++) { |
| 186 | gpio = gpios[i].gpio; |
| 187 | dir = gpios[i].dir; |
| 188 | rc = gpio_request(gpio, gpios[i].desc); |
| 189 | if (rc) { |
| 190 | printk(KERN_ERR "Error requesting GPIO %d(%s) : %d\n", |
| 191 | gpio, gpios[i].desc, rc); |
| 192 | continue; |
| 193 | } |
| 194 | if (dir) |
| 195 | gpio_direction_output(gpio, gpios[i].init); |
| 196 | else |
| 197 | gpio_direction_input(gpio); |
| 198 | } |
| 199 | while ((rc) && (--i >= 0)) |
| 200 | gpio_free(gpios[i].gpio); |
| 201 | return rc; |
| 202 | } |
| 203 | |
| 204 | static void mio_gpio_free(struct gpio_ress *gpios, int size) |
| 205 | { |
| 206 | int i; |
| 207 | |
| 208 | for (i = 0; i < size; i++) |
| 209 | gpio_free(gpios[i].gpio); |
| 210 | } |
| 211 | |
| 212 | /* LCD Screen and Backlight */ |
| 213 | static struct platform_pwm_backlight_data mioa701_backlight_data = { |
| 214 | .pwm_id = 0, |
| 215 | .max_brightness = 100, |
| 216 | .dft_brightness = 50, |
| 217 | .pwm_period_ns = 4000 * 1024, /* Fl = 250kHz */ |
| 218 | }; |
| 219 | |
| 220 | /* |
| 221 | * LTM0305A776C LCD panel timings |
| 222 | * |
| 223 | * see: |
| 224 | * - the LTM0305A776C datasheet, |
| 225 | * - and the PXA27x Programmers' manual |
| 226 | */ |
| 227 | static struct pxafb_mode_info mioa701_ltm0305a776c = { |
| 228 | .pixclock = 220000, /* CLK=4.545 MHz */ |
| 229 | .xres = 240, |
| 230 | .yres = 320, |
| 231 | .bpp = 16, |
| 232 | .hsync_len = 4, |
| 233 | .vsync_len = 2, |
| 234 | .left_margin = 6, |
| 235 | .right_margin = 4, |
| 236 | .upper_margin = 5, |
| 237 | .lower_margin = 3, |
| 238 | }; |
| 239 | |
| 240 | static void mioa701_lcd_power(int on, struct fb_var_screeninfo *si) |
| 241 | { |
| 242 | gpio_set_value(GPIO87_LCD_POWER, on); |
| 243 | } |
| 244 | |
| 245 | static struct pxafb_mach_info mioa701_pxafb_info = { |
| 246 | .modes = &mioa701_ltm0305a776c, |
| 247 | .num_modes = 1, |
| 248 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| 249 | .pxafb_lcd_power = mioa701_lcd_power, |
| 250 | }; |
| 251 | |
| 252 | /* |
| 253 | * Keyboard configuration |
| 254 | */ |
| 255 | static unsigned int mioa701_matrix_keys[] = { |
| 256 | KEY(0, 0, KEY_UP), |
| 257 | KEY(0, 1, KEY_RIGHT), |
| 258 | KEY(0, 2, KEY_MEDIA), |
| 259 | KEY(1, 0, KEY_DOWN), |
| 260 | KEY(1, 1, KEY_ENTER), |
| 261 | KEY(1, 2, KEY_CONNECT), /* GPS key */ |
| 262 | KEY(2, 0, KEY_LEFT), |
| 263 | KEY(2, 1, KEY_PHONE), /* Phone Green key */ |
| 264 | KEY(2, 2, KEY_CAMERA) /* Camera key */ |
| 265 | }; |
| 266 | static struct pxa27x_keypad_platform_data mioa701_keypad_info = { |
| 267 | .matrix_key_rows = 3, |
| 268 | .matrix_key_cols = 3, |
| 269 | .matrix_key_map = mioa701_matrix_keys, |
| 270 | .matrix_key_map_size = ARRAY_SIZE(mioa701_matrix_keys), |
| 271 | }; |
| 272 | |
| 273 | /* |
| 274 | * GPIO Key Configuration |
| 275 | */ |
| 276 | #define MIO_KEY(key, _gpio, _desc, _wakeup) \ |
| 277 | { .code = (key), .gpio = (_gpio), .active_low = 0, \ |
| 278 | .desc = (_desc), .type = EV_KEY, .wakeup = (_wakeup) } |
| 279 | static struct gpio_keys_button mioa701_button_table[] = { |
| 280 | MIO_KEY(KEY_EXIT, GPIO0_KEY_POWER, "Power button", 1), |
| 281 | MIO_KEY(KEY_VOLUMEUP, GPIO93_KEY_VOLUME_UP, "Volume up", 0), |
| 282 | MIO_KEY(KEY_VOLUMEDOWN, GPIO94_KEY_VOLUME_DOWN, "Volume down", 0), |
| 283 | MIO_KEY(KEY_HP, GPIO12_HPJACK_INSERT, "HP jack detect", 0) |
| 284 | }; |
| 285 | |
| 286 | static struct gpio_keys_platform_data mioa701_gpio_keys_data = { |
| 287 | .buttons = mioa701_button_table, |
| 288 | .nbuttons = ARRAY_SIZE(mioa701_button_table), |
| 289 | }; |
| 290 | |
| 291 | /* |
| 292 | * Leds and vibrator |
| 293 | */ |
| 294 | #define ONE_LED(_gpio, _name) \ |
| 295 | { .gpio = (_gpio), .name = (_name), .active_low = true } |
| 296 | static struct gpio_led gpio_leds[] = { |
| 297 | ONE_LED(GPIO10_LED_nCharging, "mioa701:charging"), |
| 298 | ONE_LED(GPIO97_LED_nBlue, "mioa701:blue"), |
| 299 | ONE_LED(GPIO98_LED_nOrange, "mioa701:orange"), |
| 300 | ONE_LED(GPIO82_LED_nVibra, "mioa701:vibra"), |
| 301 | ONE_LED(GPIO115_LED_nKeyboard, "mioa701:keyboard") |
| 302 | }; |
| 303 | |
| 304 | static struct gpio_led_platform_data gpio_led_info = { |
| 305 | .leds = gpio_leds, |
| 306 | .num_leds = ARRAY_SIZE(gpio_leds), |
| 307 | }; |
| 308 | |
| 309 | /* |
| 310 | * GSM Sagem XS200 chip |
| 311 | * |
| 312 | * GSM handling was purged from kernel. For history, this is the way to go : |
| 313 | * - init : GPIO24_GSM_MOD_RESET_CMD = 0, GPIO114_GSM_nMOD_DTE_UART_STATE = 1 |
| 314 | * GPIO88_GSM_nMOD_ON_CMD = 1, GPIO90_GSM_nMOD_OFF_CMD = 1 |
| 315 | * - reset : GPIO24_GSM_MOD_RESET_CMD = 1, msleep(100), |
| 316 | * GPIO24_GSM_MOD_RESET_CMD = 0 |
| 317 | * - turn on : GPIO88_GSM_nMOD_ON_CMD = 0, msleep(1000), |
| 318 | * GPIO88_GSM_nMOD_ON_CMD = 1 |
| 319 | * - turn off : GPIO90_GSM_nMOD_OFF_CMD = 0, msleep(1000), |
| 320 | * GPIO90_GSM_nMOD_OFF_CMD = 1 |
| 321 | */ |
| 322 | static int is_gsm_on(void) |
| 323 | { |
| 324 | int is_on; |
| 325 | |
| 326 | is_on = !!gpio_get_value(GPIO25_GSM_MOD_ON_STATE); |
| 327 | return is_on; |
| 328 | } |
| 329 | |
| 330 | irqreturn_t gsm_on_irq(int irq, void *p) |
| 331 | { |
| 332 | printk(KERN_DEBUG "Mioa701: GSM status changed to %s\n", |
| 333 | is_gsm_on() ? "on" : "off"); |
| 334 | return IRQ_HANDLED; |
| 335 | } |
| 336 | |
| 337 | struct gpio_ress gsm_gpios[] = { |
| 338 | MIO_GPIO_IN(GPIO25_GSM_MOD_ON_STATE, "GSM state"), |
| 339 | MIO_GPIO_IN(GPIO113_GSM_EVENT, "GSM event"), |
| 340 | }; |
| 341 | |
| 342 | static int __init gsm_init(void) |
| 343 | { |
| 344 | int rc; |
| 345 | |
| 346 | rc = mio_gpio_request(ARRAY_AND_SIZE(gsm_gpios)); |
| 347 | if (rc) |
| 348 | goto err_gpio; |
| 349 | rc = request_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), gsm_on_irq, |
| 350 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 351 | "GSM XS200 Power Irq", NULL); |
| 352 | if (rc) |
| 353 | goto err_irq; |
| 354 | |
| 355 | gpio_set_wake(GPIO113_GSM_EVENT, 1); |
| 356 | return 0; |
| 357 | |
| 358 | err_irq: |
| 359 | printk(KERN_ERR "Mioa701: Can't request GSM_ON irq\n"); |
| 360 | mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios)); |
| 361 | err_gpio: |
| 362 | printk(KERN_ERR "Mioa701: gsm not available\n"); |
| 363 | return rc; |
| 364 | } |
| 365 | |
| 366 | static void gsm_exit(void) |
| 367 | { |
| 368 | free_irq(gpio_to_irq(GPIO25_GSM_MOD_ON_STATE), NULL); |
| 369 | mio_gpio_free(ARRAY_AND_SIZE(gsm_gpios)); |
| 370 | } |
| 371 | |
| 372 | /* |
| 373 | * Bluetooth BRF6150 chip |
| 374 | * |
| 375 | * BT handling was purged from kernel. For history, this is the way to go : |
| 376 | * - turn on : GPIO83_BT_ON = 1 |
| 377 | * - turn off : GPIO83_BT_ON = 0 |
| 378 | */ |
| 379 | |
| 380 | /* |
| 381 | * GPS Sirf Star III chip |
| 382 | * |
| 383 | * GPS handling was purged from kernel. For history, this is the way to go : |
| 384 | * - init : GPIO23_GPS_UNKNOWN1 = 1, GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0 |
| 385 | * GPIO106_GPS_UNKNOWN2 = 0, GPIO107_GPS_UNKNOWN3 = 0 |
| 386 | * - turn on : GPIO27_GPS_RESET = 1, GPIO26_GPS_ON = 1 |
| 387 | * - turn off : GPIO26_GPS_ON = 0, GPIO27_GPS_RESET = 0 |
| 388 | */ |
| 389 | |
| 390 | /* |
| 391 | * USB UDC |
| 392 | */ |
| 393 | static void udc_power_command(int cmd) |
| 394 | { |
| 395 | switch (cmd) { |
| 396 | case PXA2XX_UDC_CMD_DISCONNECT: |
| 397 | gpio_set_value(GPIO22_USB_ENABLE, 0); |
| 398 | break; |
| 399 | case PXA2XX_UDC_CMD_CONNECT: |
| 400 | gpio_set_value(GPIO22_USB_ENABLE, 1); |
| 401 | break; |
| 402 | default: |
| 403 | printk(KERN_INFO "udc_control: unknown command (0x%x)!\n", cmd); |
| 404 | break; |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | static int is_usb_connected(void) |
| 409 | { |
| 410 | return !!gpio_get_value(GPIO13_USB_DETECT); |
| 411 | } |
| 412 | |
| 413 | static struct pxa2xx_udc_mach_info mioa701_udc_info = { |
| 414 | .udc_is_connected = is_usb_connected, |
| 415 | .udc_command = udc_power_command, |
| 416 | }; |
| 417 | |
| 418 | struct gpio_ress udc_gpios[] = { |
| 419 | MIO_GPIO_OUT(GPIO22_USB_ENABLE, 0, "USB Vbus enable") |
| 420 | }; |
| 421 | |
| 422 | static int __init udc_init(void) |
| 423 | { |
| 424 | pxa_set_udc_info(&mioa701_udc_info); |
| 425 | return mio_gpio_request(ARRAY_AND_SIZE(udc_gpios)); |
| 426 | } |
| 427 | |
| 428 | static void udc_exit(void) |
| 429 | { |
| 430 | mio_gpio_free(ARRAY_AND_SIZE(udc_gpios)); |
| 431 | } |
| 432 | |
| 433 | /* |
| 434 | * SDIO/MMC Card controller |
| 435 | */ |
| 436 | static void mci_setpower(struct device *dev, unsigned int vdd) |
| 437 | { |
| 438 | struct pxamci_platform_data *p_d = dev->platform_data; |
| 439 | |
| 440 | if ((1 << vdd) & p_d->ocr_mask) |
| 441 | gpio_set_value(GPIO91_SDIO_EN, 1); /* enable SDIO power */ |
| 442 | else |
| 443 | gpio_set_value(GPIO91_SDIO_EN, 0); /* disable SDIO power */ |
| 444 | } |
| 445 | |
| 446 | static int mci_get_ro(struct device *dev) |
| 447 | { |
| 448 | return gpio_get_value(GPIO78_SDIO_RO); |
| 449 | } |
| 450 | |
| 451 | struct gpio_ress mci_gpios[] = { |
| 452 | MIO_GPIO_IN(GPIO78_SDIO_RO, "SDIO readonly detect"), |
| 453 | MIO_GPIO_IN(GPIO15_SDIO_INSERT, "SDIO insertion detect"), |
| 454 | MIO_GPIO_OUT(GPIO91_SDIO_EN, 0, "SDIO power enable") |
| 455 | }; |
| 456 | |
| 457 | static void mci_exit(struct device *dev, void *data) |
| 458 | { |
| 459 | mio_gpio_free(ARRAY_AND_SIZE(mci_gpios)); |
| 460 | free_irq(gpio_to_irq(GPIO15_SDIO_INSERT), data); |
| 461 | } |
| 462 | |
| 463 | static struct pxamci_platform_data mioa701_mci_info; |
| 464 | |
| 465 | /** |
| 466 | * The card detect interrupt isn't debounced so we delay it by 250ms |
| 467 | * to give the card a chance to fully insert/eject. |
| 468 | */ |
| 469 | static int mci_init(struct device *dev, irq_handler_t detect_int, void *data) |
| 470 | { |
| 471 | int rc; |
| 472 | int irq = gpio_to_irq(GPIO15_SDIO_INSERT); |
| 473 | |
| 474 | rc = mio_gpio_request(ARRAY_AND_SIZE(mci_gpios)); |
| 475 | if (rc) |
| 476 | goto err_gpio; |
| 477 | /* enable RE/FE interrupt on card insertion and removal */ |
| 478 | rc = request_irq(irq, detect_int, |
| 479 | IRQF_DISABLED | IRQF_TRIGGER_RISING | |
| 480 | IRQF_TRIGGER_FALLING, |
| 481 | "MMC card detect", data); |
| 482 | if (rc) |
| 483 | goto err_irq; |
| 484 | |
| 485 | mioa701_mci_info.detect_delay = msecs_to_jiffies(250); |
| 486 | return 0; |
| 487 | |
| 488 | err_irq: |
| 489 | dev_err(dev, "mioa701_mci_init: MMC/SD:" |
| 490 | " can't request MMC card detect IRQ\n"); |
| 491 | mio_gpio_free(ARRAY_AND_SIZE(mci_gpios)); |
| 492 | err_gpio: |
| 493 | return rc; |
| 494 | } |
| 495 | |
| 496 | static struct pxamci_platform_data mioa701_mci_info = { |
| 497 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 498 | .init = mci_init, |
| 499 | .get_ro = mci_get_ro, |
| 500 | .setpower = mci_setpower, |
| 501 | .exit = mci_exit, |
| 502 | }; |
| 503 | |
| 504 | /* FlashRAM */ |
| 505 | static struct resource strataflash_resource = { |
| 506 | .start = PXA_CS0_PHYS, |
| 507 | .end = PXA_CS0_PHYS + SZ_64M - 1, |
| 508 | .flags = IORESOURCE_MEM, |
| 509 | }; |
| 510 | |
| 511 | static struct physmap_flash_data strataflash_data = { |
| 512 | .width = 2, |
| 513 | /* .set_vpp = mioa701_set_vpp, */ |
| 514 | }; |
| 515 | |
| 516 | static struct platform_device strataflash = { |
| 517 | .name = "physmap-flash", |
| 518 | .id = -1, |
| 519 | .resource = &strataflash_resource, |
| 520 | .num_resources = 1, |
| 521 | .dev = { |
| 522 | .platform_data = &strataflash_data, |
| 523 | }, |
| 524 | }; |
| 525 | |
| 526 | /* |
| 527 | * Suspend/Resume bootstrap management |
| 528 | * |
| 529 | * MIO A701 reboot sequence is highly ROM dependant. From the one dissassembled, |
| 530 | * this sequence is as follows : |
| 531 | * - disables interrupts |
| 532 | * - initialize SDRAM (self refresh RAM into active RAM) |
| 533 | * - initialize GPIOs (depends on value at 0xa020b020) |
| 534 | * - initialize coprossessors |
| 535 | * - if edge detect on PWR_SCL(GPIO3), then proceed to cold start |
| 536 | * - or if value at 0xa020b000 not equal to 0x0f0f0f0f, proceed to cold start |
| 537 | * - else do a resume, ie. jump to addr 0xa0100000 |
| 538 | */ |
| 539 | #define RESUME_ENABLE_ADDR 0xa020b000 |
| 540 | #define RESUME_ENABLE_VAL 0x0f0f0f0f |
| 541 | #define RESUME_BT_ADDR 0xa020b020 |
| 542 | #define RESUME_UNKNOWN_ADDR 0xa020b024 |
| 543 | #define RESUME_VECTOR_ADDR 0xa0100000 |
| 544 | #define BOOTSTRAP_WORDS mioa701_bootstrap_lg/4 |
| 545 | |
| 546 | static u32 *save_buffer; |
| 547 | |
| 548 | static void install_bootstrap(void) |
| 549 | { |
| 550 | int i; |
| 551 | u32 *rom_bootstrap = phys_to_virt(RESUME_VECTOR_ADDR); |
| 552 | u32 *src = &mioa701_bootstrap; |
| 553 | |
| 554 | for (i = 0; i < BOOTSTRAP_WORDS; i++) |
| 555 | rom_bootstrap[i] = src[i]; |
| 556 | } |
| 557 | |
| 558 | |
| 559 | static int mioa701_sys_suspend(struct sys_device *sysdev, pm_message_t state) |
| 560 | { |
| 561 | int i = 0, is_bt_on; |
| 562 | u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR); |
| 563 | u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR); |
| 564 | u32 *mem_resume_bt = phys_to_virt(RESUME_BT_ADDR); |
| 565 | u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR); |
| 566 | |
| 567 | /* Devices prepare suspend */ |
Robert Jarzmik | 844c6f6 | 2008-11-17 20:29:04 +0100 | [diff] [blame^] | 568 | is_bt_on = !!gpio_get_value(GPIO83_BT_ON); |
Robert Jarzmik | eda6f6e | 2008-08-17 09:34:30 +0100 | [diff] [blame] | 569 | pxa2xx_mfp_set_lpm(GPIO83_BT_ON, |
| 570 | is_bt_on ? MFP_LPM_DRIVE_HIGH : MFP_LPM_DRIVE_LOW); |
| 571 | |
| 572 | for (i = 0; i < BOOTSTRAP_WORDS; i++) |
| 573 | save_buffer[i] = mem_resume_vector[i]; |
| 574 | save_buffer[i++] = *mem_resume_enabler; |
| 575 | save_buffer[i++] = *mem_resume_bt; |
| 576 | save_buffer[i++] = *mem_resume_unknown; |
| 577 | |
| 578 | *mem_resume_enabler = RESUME_ENABLE_VAL; |
| 579 | *mem_resume_bt = is_bt_on; |
| 580 | |
| 581 | install_bootstrap(); |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | static int mioa701_sys_resume(struct sys_device *sysdev) |
| 586 | { |
| 587 | int i = 0; |
| 588 | u32 *mem_resume_vector = phys_to_virt(RESUME_VECTOR_ADDR); |
| 589 | u32 *mem_resume_enabler = phys_to_virt(RESUME_ENABLE_ADDR); |
| 590 | u32 *mem_resume_bt = phys_to_virt(RESUME_BT_ADDR); |
| 591 | u32 *mem_resume_unknown = phys_to_virt(RESUME_UNKNOWN_ADDR); |
| 592 | |
| 593 | for (i = 0; i < BOOTSTRAP_WORDS; i++) |
| 594 | mem_resume_vector[i] = save_buffer[i]; |
| 595 | *mem_resume_enabler = save_buffer[i++]; |
| 596 | *mem_resume_bt = save_buffer[i++]; |
| 597 | *mem_resume_unknown = save_buffer[i++]; |
| 598 | |
| 599 | return 0; |
| 600 | } |
| 601 | |
| 602 | static struct sysdev_class mioa701_sysclass = { |
| 603 | .name = "mioa701", |
| 604 | }; |
| 605 | |
| 606 | static struct sys_device sysdev_bootstrap = { |
| 607 | .cls = &mioa701_sysclass, |
| 608 | }; |
| 609 | |
| 610 | static struct sysdev_driver driver_bootstrap = { |
| 611 | .suspend = &mioa701_sys_suspend, |
| 612 | .resume = &mioa701_sys_resume, |
| 613 | }; |
| 614 | |
| 615 | static int __init bootstrap_init(void) |
| 616 | { |
| 617 | int rc; |
| 618 | int save_size = mioa701_bootstrap_lg + (sizeof(u32) * 3); |
| 619 | |
| 620 | rc = sysdev_class_register(&mioa701_sysclass); |
| 621 | if (rc) { |
| 622 | printk(KERN_ERR "Failed registering mioa701 sys class\n"); |
| 623 | return -ENODEV; |
| 624 | } |
| 625 | rc = sysdev_register(&sysdev_bootstrap); |
| 626 | if (rc) { |
| 627 | printk(KERN_ERR "Failed registering mioa701 sys device\n"); |
| 628 | return -ENODEV; |
| 629 | } |
| 630 | rc = sysdev_driver_register(&mioa701_sysclass, &driver_bootstrap); |
| 631 | if (rc) { |
| 632 | printk(KERN_ERR "Failed registering PMU sys driver\n"); |
| 633 | return -ENODEV; |
| 634 | } |
| 635 | |
| 636 | save_buffer = kmalloc(save_size, GFP_KERNEL); |
| 637 | if (!save_buffer) |
| 638 | return -ENOMEM; |
| 639 | printk(KERN_INFO "MioA701: allocated %d bytes for bootstrap\n", |
| 640 | save_size); |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | static void bootstrap_exit(void) |
| 645 | { |
| 646 | kfree(save_buffer); |
| 647 | sysdev_driver_unregister(&mioa701_sysclass, &driver_bootstrap); |
| 648 | sysdev_unregister(&sysdev_bootstrap); |
| 649 | sysdev_class_unregister(&mioa701_sysclass); |
| 650 | |
| 651 | printk(KERN_CRIT "Unregistering mioa701 suspend will hang next" |
| 652 | "resume !!!\n"); |
| 653 | } |
| 654 | |
| 655 | /* |
| 656 | * Power Supply |
| 657 | */ |
| 658 | static char *supplicants[] = { |
| 659 | "mioa701_battery" |
| 660 | }; |
| 661 | |
| 662 | static void mioa701_set_charge(int flags) |
| 663 | { |
| 664 | gpio_set_value(GPIO9_CHARGE_nEN, !flags); |
| 665 | } |
| 666 | |
| 667 | static struct pda_power_pdata power_pdata = { |
| 668 | .is_ac_online = is_usb_connected, |
| 669 | .set_charge = mioa701_set_charge, |
| 670 | .supplied_to = supplicants, |
| 671 | .num_supplicants = ARRAY_SIZE(supplicants), |
| 672 | }; |
| 673 | |
| 674 | static struct resource power_resources[] = { |
| 675 | [0] = { |
| 676 | .name = "ac", |
| 677 | .start = gpio_to_irq(GPIO13_USB_DETECT), |
| 678 | .end = gpio_to_irq(GPIO13_USB_DETECT), |
| 679 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE | |
| 680 | IORESOURCE_IRQ_LOWEDGE, |
| 681 | }, |
| 682 | }; |
| 683 | |
| 684 | static struct platform_device power_dev = { |
| 685 | .name = "pda-power", |
| 686 | .id = -1, |
| 687 | .resource = power_resources, |
| 688 | .num_resources = ARRAY_SIZE(power_resources), |
| 689 | .dev = { |
| 690 | .platform_data = &power_pdata, |
| 691 | }, |
| 692 | }; |
| 693 | |
| 694 | #if defined(CONFIG_PDA_POWER) && defined(CONFIG_TOUCHSCREEN_WM97XX) |
| 695 | static struct wm97xx *battery_wm; |
| 696 | |
| 697 | static enum power_supply_property battery_props[] = { |
| 698 | POWER_SUPPLY_PROP_STATUS, |
| 699 | POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, |
| 700 | POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, |
| 701 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 702 | POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, /* Necessary for apm */ |
| 703 | }; |
| 704 | |
| 705 | static int get_battery_voltage(void) |
| 706 | { |
| 707 | int adc = -1; |
| 708 | |
| 709 | if (battery_wm) |
| 710 | adc = wm97xx_read_aux_adc(battery_wm, WM97XX_AUX_ID1); |
| 711 | return adc; |
| 712 | } |
| 713 | |
| 714 | static int get_battery_status(struct power_supply *b) |
| 715 | { |
| 716 | int status; |
| 717 | |
| 718 | if (is_usb_connected()) |
| 719 | status = POWER_SUPPLY_STATUS_CHARGING; |
| 720 | else |
| 721 | status = POWER_SUPPLY_STATUS_DISCHARGING; |
| 722 | |
| 723 | return status; |
| 724 | } |
| 725 | |
| 726 | static int get_property(struct power_supply *b, |
| 727 | enum power_supply_property psp, |
| 728 | union power_supply_propval *val) |
| 729 | { |
| 730 | int rc = 0; |
| 731 | |
| 732 | switch (psp) { |
| 733 | case POWER_SUPPLY_PROP_STATUS: |
| 734 | val->intval = get_battery_status(b); |
| 735 | break; |
| 736 | case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: |
| 737 | val->intval = 0xfd0; |
| 738 | break; |
| 739 | case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: |
| 740 | val->intval = 0xc00; |
| 741 | break; |
| 742 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| 743 | val->intval = get_battery_voltage(); |
| 744 | break; |
| 745 | case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: |
| 746 | val->intval = 100; |
| 747 | break; |
| 748 | default: |
| 749 | val->intval = -1; |
| 750 | rc = -1; |
| 751 | } |
| 752 | |
| 753 | return rc; |
| 754 | }; |
| 755 | |
| 756 | static struct power_supply battery_ps = { |
| 757 | .name = "mioa701_battery", |
| 758 | .type = POWER_SUPPLY_TYPE_BATTERY, |
| 759 | .get_property = get_property, |
| 760 | .properties = battery_props, |
| 761 | .num_properties = ARRAY_SIZE(battery_props), |
| 762 | }; |
| 763 | |
| 764 | static int battery_probe(struct platform_device *pdev) |
| 765 | { |
| 766 | struct wm97xx *wm = platform_get_drvdata(pdev); |
| 767 | int rc; |
| 768 | |
| 769 | battery_wm = wm; |
| 770 | |
| 771 | rc = power_supply_register(NULL, &battery_ps); |
| 772 | if (rc) |
| 773 | dev_err(&pdev->dev, |
| 774 | "Could not register mioa701 battery -> %d\n", rc); |
| 775 | return rc; |
| 776 | } |
| 777 | |
| 778 | static int battery_remove(struct platform_device *pdev) |
| 779 | { |
| 780 | battery_wm = NULL; |
| 781 | return 0; |
| 782 | } |
| 783 | |
| 784 | static struct platform_driver mioa701_battery_driver = { |
| 785 | .driver = { |
| 786 | .name = "wm97xx-battery", |
| 787 | }, |
| 788 | .probe = battery_probe, |
| 789 | .remove = battery_remove |
| 790 | }; |
| 791 | |
| 792 | static int __init mioa701_battery_init(void) |
| 793 | { |
| 794 | int rc; |
| 795 | |
| 796 | rc = platform_driver_register(&mioa701_battery_driver); |
| 797 | if (rc) |
| 798 | printk(KERN_ERR "Could not register mioa701 battery driver\n"); |
| 799 | return rc; |
| 800 | } |
| 801 | |
| 802 | #else |
| 803 | static int __init mioa701_battery_init(void) |
| 804 | { |
| 805 | return 0; |
| 806 | } |
| 807 | #endif |
| 808 | |
| 809 | /* |
| 810 | * Mio global |
| 811 | */ |
| 812 | |
| 813 | /* Devices */ |
| 814 | #define MIO_PARENT_DEV(var, strname, tparent, pdata) \ |
| 815 | static struct platform_device var = { \ |
| 816 | .name = strname, \ |
| 817 | .id = -1, \ |
| 818 | .dev = { \ |
| 819 | .platform_data = pdata, \ |
| 820 | .parent = tparent, \ |
| 821 | }, \ |
| 822 | }; |
| 823 | #define MIO_SIMPLE_DEV(var, strname, pdata) \ |
| 824 | MIO_PARENT_DEV(var, strname, NULL, pdata) |
| 825 | |
| 826 | MIO_SIMPLE_DEV(mioa701_gpio_keys, "gpio-keys", &mioa701_gpio_keys_data) |
| 827 | MIO_PARENT_DEV(mioa701_backlight, "pwm-backlight", &pxa27x_device_pwm0.dev, |
| 828 | &mioa701_backlight_data); |
| 829 | MIO_SIMPLE_DEV(mioa701_led, "leds-gpio", &gpio_led_info) |
| 830 | MIO_SIMPLE_DEV(pxa2xx_pcm, "pxa2xx-pcm", NULL) |
| 831 | MIO_SIMPLE_DEV(pxa2xx_ac97, "pxa2xx-ac97", NULL) |
| 832 | MIO_PARENT_DEV(mio_wm9713_codec, "wm9713-codec", &pxa2xx_ac97.dev, NULL) |
| 833 | MIO_SIMPLE_DEV(mioa701_sound, "mioa701-wm9713", NULL) |
| 834 | MIO_SIMPLE_DEV(mioa701_board, "mioa701-board", NULL) |
| 835 | |
| 836 | static struct platform_device *devices[] __initdata = { |
| 837 | &mioa701_gpio_keys, |
| 838 | &mioa701_backlight, |
| 839 | &mioa701_led, |
| 840 | &pxa2xx_pcm, |
| 841 | &pxa2xx_ac97, |
| 842 | &mio_wm9713_codec, |
| 843 | &mioa701_sound, |
| 844 | &power_dev, |
| 845 | &strataflash, |
| 846 | &mioa701_board |
| 847 | }; |
| 848 | |
| 849 | static void mioa701_machine_exit(void); |
| 850 | |
| 851 | static void mioa701_poweroff(void) |
| 852 | { |
| 853 | mioa701_machine_exit(); |
| 854 | gpio_set_value(GPIO18_POWEROFF, 1); |
| 855 | } |
| 856 | |
| 857 | static void mioa701_restart(char c) |
| 858 | { |
| 859 | mioa701_machine_exit(); |
| 860 | arm_machine_restart(c); |
| 861 | } |
| 862 | |
| 863 | struct gpio_ress global_gpios[] = { |
| 864 | MIO_GPIO_OUT(GPIO9_CHARGE_nEN, 1, "Charger enable"), |
| 865 | MIO_GPIO_OUT(GPIO18_POWEROFF, 0, "Power Off"), |
| 866 | MIO_GPIO_OUT(GPIO87_LCD_POWER, 0, "LCD Power") |
| 867 | }; |
| 868 | |
| 869 | static void __init mioa701_machine_init(void) |
| 870 | { |
| 871 | PSLR = 0xff100000; /* SYSDEL=125ms, PWRDEL=125ms, PSLR_SL_ROD=1 */ |
| 872 | PCFR = PCFR_DC_EN | PCFR_GPR_EN | PCFR_OPDE; |
| 873 | RTTR = 32768 - 1; /* Reset crazy WinCE value */ |
| 874 | UP2OCR = UP2OCR_HXOE; |
| 875 | |
| 876 | pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config)); |
| 877 | mio_gpio_request(ARRAY_AND_SIZE(global_gpios)); |
| 878 | bootstrap_init(); |
| 879 | set_pxa_fb_info(&mioa701_pxafb_info); |
| 880 | pxa_set_mci_info(&mioa701_mci_info); |
| 881 | pxa_set_keypad_info(&mioa701_keypad_info); |
| 882 | udc_init(); |
| 883 | pm_power_off = mioa701_poweroff; |
| 884 | arm_pm_restart = mioa701_restart; |
| 885 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 886 | gsm_init(); |
| 887 | mioa701_battery_init(); |
| 888 | } |
| 889 | |
| 890 | static void mioa701_machine_exit(void) |
| 891 | { |
| 892 | udc_exit(); |
| 893 | bootstrap_exit(); |
| 894 | gsm_exit(); |
| 895 | } |
| 896 | |
| 897 | MACHINE_START(MIOA701, "MIO A701") |
| 898 | .phys_io = 0x40000000, |
| 899 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
| 900 | .boot_params = 0xa0000100, |
| 901 | .map_io = &pxa_map_io, |
| 902 | .init_irq = &pxa27x_init_irq, |
| 903 | .init_machine = mioa701_machine_init, |
| 904 | .timer = &pxa_timer, |
| 905 | MACHINE_END |