Sergey Lapin | c49e1e6 | 2008-08-29 15:47:52 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Hardware definitions for Palm Zire72 |
| 3 | * |
| 4 | * Authors: |
| 5 | * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com> |
| 6 | * Sergey Lapin <slapin@ossfans.org> |
| 7 | * Alex Osborne <bobofdoom@gmail.com> |
| 8 | * Jan Herman <2hp@seznam.cz> |
| 9 | * |
| 10 | * Rewrite for mainline: |
| 11 | * Marek Vasut <marek.vasut@gmail.com> |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify |
| 14 | * it under the terms of the GNU General Public License version 2 as |
| 15 | * published by the Free Software Foundation. |
| 16 | * |
| 17 | * (find more info at www.hackndev.com) |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/sysdev.h> |
| 23 | #include <linux/delay.h> |
| 24 | #include <linux/irq.h> |
| 25 | #include <linux/gpio_keys.h> |
| 26 | #include <linux/input.h> |
| 27 | #include <linux/pda_power.h> |
| 28 | #include <linux/pwm_backlight.h> |
| 29 | #include <linux/gpio.h> |
| 30 | #include <linux/power_supply.h> |
| 31 | |
| 32 | #include <asm/mach-types.h> |
| 33 | #include <asm/mach/arch.h> |
| 34 | #include <asm/mach/map.h> |
| 35 | |
| 36 | #include <mach/audio.h> |
| 37 | #include <mach/palmz72.h> |
| 38 | #include <mach/mmc.h> |
| 39 | #include <mach/pxafb.h> |
| 40 | #include <mach/pxa-regs.h> |
| 41 | #include <mach/pxa2xx-regs.h> |
| 42 | #include <mach/mfp-pxa27x.h> |
| 43 | #include <mach/irda.h> |
| 44 | #include <mach/pxa27x_keypad.h> |
| 45 | #include <mach/udc.h> |
| 46 | #include <mach/pm.h> |
| 47 | |
| 48 | #include "generic.h" |
| 49 | #include "devices.h" |
| 50 | |
| 51 | /****************************************************************************** |
| 52 | * Pin configuration |
| 53 | ******************************************************************************/ |
| 54 | static unsigned long palmz72_pin_config[] __initdata = { |
| 55 | /* MMC */ |
| 56 | GPIO32_MMC_CLK, |
| 57 | GPIO92_MMC_DAT_0, |
| 58 | GPIO109_MMC_DAT_1, |
| 59 | GPIO110_MMC_DAT_2, |
| 60 | GPIO111_MMC_DAT_3, |
| 61 | GPIO112_MMC_CMD, |
| 62 | GPIO14_GPIO, /* SD detect */ |
| 63 | GPIO115_GPIO, /* SD RO */ |
| 64 | GPIO98_GPIO, /* SD power */ |
| 65 | |
| 66 | /* AC97 */ |
| 67 | GPIO28_AC97_BITCLK, |
| 68 | GPIO29_AC97_SDATA_IN_0, |
| 69 | GPIO30_AC97_SDATA_OUT, |
| 70 | GPIO31_AC97_SYNC, |
| 71 | |
| 72 | /* IrDA */ |
| 73 | GPIO49_GPIO, /* ir disable */ |
| 74 | GPIO46_FICP_RXD, |
| 75 | GPIO47_FICP_TXD, |
| 76 | |
| 77 | /* PWM */ |
| 78 | GPIO16_PWM0_OUT, |
| 79 | |
| 80 | /* USB */ |
| 81 | GPIO15_GPIO, /* usb detect */ |
| 82 | GPIO12_GPIO, /* usb pullup */ |
| 83 | GPIO95_GPIO, /* usb power */ |
| 84 | |
| 85 | /* Matrix keypad */ |
| 86 | GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH, |
| 87 | GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH, |
| 88 | GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH, |
| 89 | GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH, |
| 90 | GPIO103_KP_MKOUT_0, |
| 91 | GPIO104_KP_MKOUT_1, |
| 92 | GPIO105_KP_MKOUT_2, |
| 93 | |
| 94 | /* LCD */ |
| 95 | GPIO58_LCD_LDD_0, |
| 96 | GPIO59_LCD_LDD_1, |
| 97 | GPIO60_LCD_LDD_2, |
| 98 | GPIO61_LCD_LDD_3, |
| 99 | GPIO62_LCD_LDD_4, |
| 100 | GPIO63_LCD_LDD_5, |
| 101 | GPIO64_LCD_LDD_6, |
| 102 | GPIO65_LCD_LDD_7, |
| 103 | GPIO66_LCD_LDD_8, |
| 104 | GPIO67_LCD_LDD_9, |
| 105 | GPIO68_LCD_LDD_10, |
| 106 | GPIO69_LCD_LDD_11, |
| 107 | GPIO70_LCD_LDD_12, |
| 108 | GPIO71_LCD_LDD_13, |
| 109 | GPIO72_LCD_LDD_14, |
| 110 | GPIO73_LCD_LDD_15, |
| 111 | GPIO74_LCD_FCLK, |
| 112 | GPIO75_LCD_LCLK, |
| 113 | GPIO76_LCD_PCLK, |
| 114 | GPIO77_LCD_BIAS, |
| 115 | GPIO20_GPIO, /* bl power */ |
| 116 | GPIO21_GPIO, /* LCD border switch */ |
| 117 | GPIO22_GPIO, /* LCD border color */ |
| 118 | GPIO96_GPIO, /* lcd power */ |
| 119 | |
| 120 | /* Misc. */ |
| 121 | GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */ |
| 122 | GPIO88_GPIO, /* green led */ |
| 123 | GPIO27_GPIO, /* WM9712 IRQ */ |
| 124 | }; |
| 125 | |
| 126 | /****************************************************************************** |
| 127 | * SD/MMC card controller |
| 128 | ******************************************************************************/ |
| 129 | static int palmz72_mci_init(struct device *dev, |
| 130 | irq_handler_t palmz72_detect_int, void *data) |
| 131 | { |
| 132 | int err = 0; |
| 133 | |
| 134 | /* Setup an interrupt for detecting card insert/remove events */ |
| 135 | err = gpio_request(GPIO_NR_PALMZ72_SD_DETECT_N, "SD IRQ"); |
| 136 | if (err) |
| 137 | goto err; |
| 138 | err = gpio_direction_input(GPIO_NR_PALMZ72_SD_DETECT_N); |
| 139 | if (err) |
| 140 | goto err2; |
| 141 | err = request_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), |
| 142 | palmz72_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM | |
| 143 | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, |
| 144 | "SD/MMC card detect", data); |
| 145 | if (err) { |
| 146 | printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", |
| 147 | __func__); |
| 148 | goto err2; |
| 149 | } |
| 150 | |
| 151 | /* SD_POWER is not actually power, but it is more like chip |
| 152 | * select, i.e. it is inverted */ |
| 153 | |
| 154 | err = gpio_request(GPIO_NR_PALMZ72_SD_POWER_N, "SD_POWER"); |
| 155 | if (err) |
| 156 | goto err3; |
| 157 | err = gpio_direction_output(GPIO_NR_PALMZ72_SD_POWER_N, 0); |
| 158 | if (err) |
| 159 | goto err4; |
| 160 | err = gpio_request(GPIO_NR_PALMZ72_SD_RO, "SD_RO"); |
| 161 | if (err) |
| 162 | goto err4; |
| 163 | err = gpio_direction_input(GPIO_NR_PALMZ72_SD_RO); |
| 164 | if (err) |
| 165 | goto err5; |
| 166 | |
| 167 | printk(KERN_DEBUG "%s: irq registered\n", __func__); |
| 168 | |
| 169 | return 0; |
| 170 | |
| 171 | err5: |
| 172 | gpio_free(GPIO_NR_PALMZ72_SD_RO); |
| 173 | err4: |
| 174 | gpio_free(GPIO_NR_PALMZ72_SD_POWER_N); |
| 175 | err3: |
| 176 | free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data); |
| 177 | err2: |
| 178 | gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N); |
| 179 | err: |
| 180 | return err; |
| 181 | } |
| 182 | |
| 183 | static void palmz72_mci_exit(struct device *dev, void *data) |
| 184 | { |
| 185 | gpio_free(GPIO_NR_PALMZ72_SD_POWER_N); |
| 186 | free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data); |
| 187 | gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N); |
| 188 | gpio_free(GPIO_NR_PALMZ72_SD_RO); |
| 189 | } |
| 190 | |
| 191 | static void palmz72_mci_power(struct device *dev, unsigned int vdd) |
| 192 | { |
| 193 | struct pxamci_platform_data *p_d = dev->platform_data; |
| 194 | if (p_d->ocr_mask & (1 << vdd)) |
| 195 | gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 0); |
| 196 | else |
| 197 | gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 1); |
| 198 | } |
| 199 | |
| 200 | static int palmz72_mci_ro(struct device *dev) |
| 201 | { |
| 202 | return gpio_get_value(GPIO_NR_PALMZ72_SD_RO); |
| 203 | } |
| 204 | |
| 205 | static struct pxamci_platform_data palmz72_mci_platform_data = { |
| 206 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 207 | .setpower = palmz72_mci_power, |
| 208 | .get_ro = palmz72_mci_ro, |
| 209 | .init = palmz72_mci_init, |
| 210 | .exit = palmz72_mci_exit, |
| 211 | }; |
| 212 | |
| 213 | /****************************************************************************** |
| 214 | * GPIO keyboard |
| 215 | ******************************************************************************/ |
| 216 | static unsigned int palmz72_matrix_keys[] = { |
| 217 | KEY(0, 0, KEY_POWER), |
| 218 | KEY(0, 1, KEY_F1), |
| 219 | KEY(0, 2, KEY_ENTER), |
| 220 | |
| 221 | KEY(1, 0, KEY_F2), |
| 222 | KEY(1, 1, KEY_F3), |
| 223 | KEY(1, 2, KEY_F4), |
| 224 | |
| 225 | KEY(2, 0, KEY_UP), |
| 226 | KEY(2, 2, KEY_DOWN), |
| 227 | |
| 228 | KEY(3, 0, KEY_RIGHT), |
| 229 | KEY(3, 2, KEY_LEFT), |
| 230 | }; |
| 231 | |
| 232 | static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = { |
| 233 | .matrix_key_rows = 4, |
| 234 | .matrix_key_cols = 3, |
| 235 | .matrix_key_map = palmz72_matrix_keys, |
| 236 | .matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys), |
| 237 | |
| 238 | .debounce_interval = 30, |
| 239 | }; |
| 240 | |
| 241 | /****************************************************************************** |
| 242 | * Backlight |
| 243 | ******************************************************************************/ |
| 244 | static int palmz72_backlight_init(struct device *dev) |
| 245 | { |
| 246 | int ret; |
| 247 | |
| 248 | ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER"); |
| 249 | if (ret) |
| 250 | goto err; |
| 251 | ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0); |
| 252 | if (ret) |
| 253 | goto err2; |
| 254 | ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER"); |
| 255 | if (ret) |
| 256 | goto err2; |
| 257 | ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0); |
| 258 | if (ret) |
| 259 | goto err3; |
| 260 | |
| 261 | return 0; |
| 262 | err3: |
| 263 | gpio_free(GPIO_NR_PALMZ72_LCD_POWER); |
| 264 | err2: |
| 265 | gpio_free(GPIO_NR_PALMZ72_BL_POWER); |
| 266 | err: |
| 267 | return ret; |
| 268 | } |
| 269 | |
| 270 | static int palmz72_backlight_notify(int brightness) |
| 271 | { |
| 272 | gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness); |
| 273 | gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness); |
| 274 | return brightness; |
| 275 | } |
| 276 | |
| 277 | static void palmz72_backlight_exit(struct device *dev) |
| 278 | { |
| 279 | gpio_free(GPIO_NR_PALMZ72_BL_POWER); |
| 280 | gpio_free(GPIO_NR_PALMZ72_LCD_POWER); |
| 281 | } |
| 282 | |
| 283 | static struct platform_pwm_backlight_data palmz72_backlight_data = { |
| 284 | .pwm_id = 0, |
| 285 | .max_brightness = PALMZ72_MAX_INTENSITY, |
| 286 | .dft_brightness = PALMZ72_MAX_INTENSITY, |
| 287 | .pwm_period_ns = PALMZ72_PERIOD_NS, |
| 288 | .init = palmz72_backlight_init, |
| 289 | .notify = palmz72_backlight_notify, |
| 290 | .exit = palmz72_backlight_exit, |
| 291 | }; |
| 292 | |
| 293 | static struct platform_device palmz72_backlight = { |
| 294 | .name = "pwm-backlight", |
| 295 | .dev = { |
| 296 | .parent = &pxa27x_device_pwm0.dev, |
| 297 | .platform_data = &palmz72_backlight_data, |
| 298 | }, |
| 299 | }; |
| 300 | |
| 301 | /****************************************************************************** |
| 302 | * IrDA |
| 303 | ******************************************************************************/ |
| 304 | static int palmz72_irda_startup(struct device *dev) |
| 305 | { |
| 306 | int err; |
| 307 | err = gpio_request(GPIO_NR_PALMZ72_IR_DISABLE, "IR DISABLE"); |
| 308 | if (err) |
| 309 | goto err; |
| 310 | err = gpio_direction_output(GPIO_NR_PALMZ72_IR_DISABLE, 1); |
| 311 | if (err) |
| 312 | gpio_free(GPIO_NR_PALMZ72_IR_DISABLE); |
| 313 | err: |
| 314 | return err; |
| 315 | } |
| 316 | |
| 317 | static void palmz72_irda_shutdown(struct device *dev) |
| 318 | { |
| 319 | gpio_free(GPIO_NR_PALMZ72_IR_DISABLE); |
| 320 | } |
| 321 | |
| 322 | static void palmz72_irda_transceiver_mode(struct device *dev, int mode) |
| 323 | { |
| 324 | gpio_set_value(GPIO_NR_PALMZ72_IR_DISABLE, mode & IR_OFF); |
| 325 | pxa2xx_transceiver_mode(dev, mode); |
| 326 | } |
| 327 | |
| 328 | static struct pxaficp_platform_data palmz72_ficp_platform_data = { |
| 329 | .startup = palmz72_irda_startup, |
| 330 | .shutdown = palmz72_irda_shutdown, |
| 331 | .transceiver_cap = IR_SIRMODE | IR_OFF, |
| 332 | .transceiver_mode = palmz72_irda_transceiver_mode, |
| 333 | }; |
| 334 | |
| 335 | /****************************************************************************** |
| 336 | * LEDs |
| 337 | ******************************************************************************/ |
| 338 | static struct gpio_led gpio_leds[] = { |
| 339 | { |
| 340 | .name = "palmz72:green:led", |
| 341 | .default_trigger = "none", |
| 342 | .gpio = GPIO_NR_PALMZ72_LED_GREEN, |
| 343 | }, |
| 344 | }; |
| 345 | |
| 346 | static struct gpio_led_platform_data gpio_led_info = { |
| 347 | .leds = gpio_leds, |
| 348 | .num_leds = ARRAY_SIZE(gpio_leds), |
| 349 | }; |
| 350 | |
| 351 | static struct platform_device palmz72_leds = { |
| 352 | .name = "leds-gpio", |
| 353 | .id = -1, |
| 354 | .dev = { |
| 355 | .platform_data = &gpio_led_info, |
| 356 | } |
| 357 | }; |
| 358 | |
| 359 | /****************************************************************************** |
| 360 | * Power supply |
| 361 | ******************************************************************************/ |
| 362 | static int power_supply_init(struct device *dev) |
| 363 | { |
| 364 | int ret; |
| 365 | |
| 366 | ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC"); |
| 367 | if (ret) |
| 368 | goto err1; |
| 369 | ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT); |
| 370 | if (ret) |
| 371 | goto err2; |
| 372 | |
| 373 | ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB"); |
| 374 | if (ret) |
| 375 | goto err2; |
| 376 | ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N); |
| 377 | if (ret) |
| 378 | goto err3; |
| 379 | |
| 380 | return 0; |
| 381 | err3: |
| 382 | gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N); |
| 383 | err2: |
| 384 | gpio_free(GPIO_NR_PALMZ72_POWER_DETECT); |
| 385 | err1: |
| 386 | return ret; |
| 387 | } |
| 388 | |
| 389 | static int palmz72_is_ac_online(void) |
| 390 | { |
| 391 | return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT); |
| 392 | } |
| 393 | |
| 394 | static int palmz72_is_usb_online(void) |
| 395 | { |
| 396 | return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N); |
| 397 | } |
| 398 | |
| 399 | static void power_supply_exit(struct device *dev) |
| 400 | { |
| 401 | gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N); |
| 402 | gpio_free(GPIO_NR_PALMZ72_POWER_DETECT); |
| 403 | } |
| 404 | |
| 405 | static char *palmz72_supplicants[] = { |
| 406 | "main-battery", |
| 407 | }; |
| 408 | |
| 409 | static struct pda_power_pdata power_supply_info = { |
| 410 | .init = power_supply_init, |
| 411 | .is_ac_online = palmz72_is_ac_online, |
| 412 | .is_usb_online = palmz72_is_usb_online, |
| 413 | .exit = power_supply_exit, |
| 414 | .supplied_to = palmz72_supplicants, |
| 415 | .num_supplicants = ARRAY_SIZE(palmz72_supplicants), |
| 416 | }; |
| 417 | |
| 418 | static struct platform_device power_supply = { |
| 419 | .name = "pda-power", |
| 420 | .id = -1, |
| 421 | .dev = { |
| 422 | .platform_data = &power_supply_info, |
| 423 | }, |
| 424 | }; |
| 425 | |
| 426 | /****************************************************************************** |
| 427 | * Framebuffer |
| 428 | ******************************************************************************/ |
| 429 | static struct pxafb_mode_info palmz72_lcd_modes[] = { |
| 430 | { |
| 431 | .pixclock = 115384, |
| 432 | .xres = 320, |
| 433 | .yres = 320, |
| 434 | .bpp = 16, |
| 435 | |
| 436 | .left_margin = 27, |
| 437 | .right_margin = 7, |
| 438 | .upper_margin = 7, |
| 439 | .lower_margin = 8, |
| 440 | |
| 441 | .hsync_len = 6, |
| 442 | .vsync_len = 1, |
| 443 | }, |
| 444 | }; |
| 445 | |
| 446 | static struct pxafb_mach_info palmz72_lcd_screen = { |
| 447 | .modes = palmz72_lcd_modes, |
| 448 | .num_modes = ARRAY_SIZE(palmz72_lcd_modes), |
| 449 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, |
| 450 | }; |
| 451 | |
| 452 | /****************************************************************************** |
| 453 | * Machine init |
| 454 | ******************************************************************************/ |
| 455 | static struct platform_device *devices[] __initdata = { |
| 456 | &palmz72_backlight, |
| 457 | &palmz72_leds, |
| 458 | &power_supply, |
| 459 | }; |
| 460 | |
| 461 | static void __init palmz72_init(void) |
| 462 | { |
| 463 | pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config)); |
| 464 | set_pxa_fb_info(&palmz72_lcd_screen); |
| 465 | pxa_set_mci_info(&palmz72_mci_platform_data); |
| 466 | pxa_set_ac97_info(NULL); |
| 467 | pxa_set_ficp_info(&palmz72_ficp_platform_data); |
| 468 | pxa_set_keypad_info(&palmz72_keypad_platform_data); |
| 469 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
| 470 | } |
| 471 | |
| 472 | MACHINE_START(PALMZ72, "Palm Zire72") |
| 473 | .phys_io = 0x40000000, |
| 474 | .io_pg_offst = io_p2v(0x40000000), |
| 475 | .boot_params = 0xa0000100, |
| 476 | .map_io = pxa_map_io, |
| 477 | .init_irq = pxa27x_init_irq, |
| 478 | .timer = &pxa_timer, |
| 479 | .init_machine = palmz72_init |
| 480 | MACHINE_END |