arch/arm/mach-pxa/palmtc.c

   1 /*
   2  * linux/arch/arm/mach-pxa/palmtc.c
   3  *
   4  * Support for the Palm Tungsten|C
   5  *
   6  * Author:      Marek Vasut <marek.vasut@gmail.com>
   7  *
   8  * Based on work of:
   9  *              Petr Blaha <p3t3@centrum.cz>
  10  *              Chetan S. Kumar <shivakumar.chetan@gmail.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/irq.h>
  20 #include <linux/input.h>
  21 #include <linux/pwm_backlight.h>
  22 #include <linux/gpio.h>
  23 #include <linux/input/matrix_keypad.h>
  24 #include <linux/ucb1400.h>
  25 #include <linux/power_supply.h>
  26 #include <linux/gpio_keys.h>
  27 #include <linux/mtd/physmap.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/palmtc.h>
  37 #include <mach/mmc.h>
  38 #include <mach/pxafb.h>
  39 #include <mach/irda.h>
  40 #include <mach/udc.h>
  41
  42 #include "generic.h"
  43 #include "devices.h"
  44
  45 /******************************************************************************
  46  * Pin configuration
  47  ******************************************************************************/
  48 static unsigned long palmtc_pin_config[] __initdata = {
  49         /* MMC */
  50         GPIO6_MMC_CLK,
  51         GPIO8_MMC_CS0,
  52         GPIO12_GPIO,    /* detect */
  53         GPIO32_GPIO,    /* power */
  54         GPIO54_GPIO,    /* r/o switch */
  55
  56         /* PCMCIA */
  57         GPIO52_nPCE_1,
  58         GPIO53_nPCE_2,
  59         GPIO50_nPIOR,
  60         GPIO51_nPIOW,
  61         GPIO49_nPWE,
  62         GPIO48_nPOE,
  63         GPIO52_nPCE_1,
  64         GPIO53_nPCE_2,
  65         GPIO57_nIOIS16,
  66         GPIO56_nPWAIT,
  67
  68         /* AC97 */
  69         GPIO28_AC97_BITCLK,
  70         GPIO29_AC97_SDATA_IN_0,
  71         GPIO30_AC97_SDATA_OUT,
  72         GPIO31_AC97_SYNC,
  73
  74         /* IrDA */
  75         GPIO45_GPIO,    /* ir disable */
  76         GPIO46_FICP_RXD,
  77         GPIO47_FICP_TXD,
  78
  79         /* PWM */
  80         GPIO17_PWM1_OUT,
  81
  82         /* USB */
  83         GPIO4_GPIO,     /* detect */
  84         GPIO36_GPIO,    /* pullup */
  85
  86         /* LCD */
  87         GPIOxx_LCD_TFT_16BPP,
  88
  89         /* MATRIX KEYPAD */
  90         GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
  91         GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
  92         GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
  93         GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
  94         GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
  95         GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
  96         GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
  97         GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
  98         GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
  99         GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
 100         GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
 101         GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
 102         GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
 103         GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
 104         GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
 105         GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
 106
 107         /* PXA GPIO KEYS */
 108         GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
 109
 110         /* MISC */
 111         GPIO1_RST,      /* reset */
 112         GPIO2_GPIO,     /* earphone detect */
 113         GPIO16_GPIO,    /* backlight switch */
 114 };
 115
 116 /******************************************************************************
 117  * SD/MMC card controller
 118  ******************************************************************************/
 119 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 120 static struct pxamci_platform_data palmtc_mci_platform_data = {
 121         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 122         .gpio_power             = GPIO_NR_PALMTC_SD_POWER,
 123         .gpio_card_ro           = GPIO_NR_PALMTC_SD_READONLY,
 124         .gpio_card_detect       = GPIO_NR_PALMTC_SD_DETECT_N,
 125         .detect_delay_ms        = 200,
 126 };
 127
 128 static void __init palmtc_mmc_init(void)
 129 {
 130         pxa_set_mci_info(&palmtc_mci_platform_data);
 131 }
 132 #else
 133 static inline void palmtc_mmc_init(void) {}
 134 #endif
 135
 136 /******************************************************************************
 137  * GPIO keys
 138  ******************************************************************************/
 139 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 140 static struct gpio_keys_button palmtc_pxa_buttons[] = {
 141         {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
 142 };
 143
 144 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
 145         .buttons        = palmtc_pxa_buttons,
 146         .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
 147 };
 148
 149 static struct platform_device palmtc_pxa_keys = {
 150         .name   = "gpio-keys",
 151         .id     = -1,
 152         .dev    = {
 153                 .platform_data = &palmtc_pxa_keys_data,
 154         },
 155 };
 156
 157 static void __init palmtc_keys_init(void)
 158 {
 159         platform_device_register(&palmtc_pxa_keys);
 160 }
 161 #else
 162 static inline void palmtc_keys_init(void) {}
 163 #endif
 164
 165 /******************************************************************************
 166  * Backlight
 167  ******************************************************************************/
 168 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
 169 static int palmtc_backlight_init(struct device *dev)
 170 {
 171         int ret;
 172
 173         ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
 174         if (ret)
 175                 goto err;
 176         ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
 177         if (ret)
 178                 goto err2;
 179
 180         return 0;
 181
 182 err2:
 183         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 184 err:
 185         return ret;
 186 }
 187
 188 static int palmtc_backlight_notify(struct device *dev, int brightness)
 189 {
 190         /* backlight is on when GPIO16 AF0 is high */
 191         gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
 192         return brightness;
 193 }
 194
 195 static void palmtc_backlight_exit(struct device *dev)
 196 {
 197         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 198 }
 199
 200 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 201         .pwm_id         = 1,
 202         .max_brightness = PALMTC_MAX_INTENSITY,
 203         .dft_brightness = PALMTC_MAX_INTENSITY,
 204         .pwm_period_ns  = PALMTC_PERIOD_NS,
 205         .init           = palmtc_backlight_init,
 206         .notify         = palmtc_backlight_notify,
 207         .exit           = palmtc_backlight_exit,
 208 };
 209
 210 static struct platform_device palmtc_backlight = {
 211         .name   = "pwm-backlight",
 212         .dev    = {
 213                 .parent         = &pxa25x_device_pwm1.dev,
 214                 .platform_data  = &palmtc_backlight_data,
 215         },
 216 };
 217
 218 static void __init palmtc_pwm_init(void)
 219 {
 220         platform_device_register(&palmtc_backlight);
 221 }
 222 #else
 223 static inline void palmtc_pwm_init(void) {}
 224 #endif
 225
 226 /******************************************************************************
 227  * IrDA
 228  ******************************************************************************/
 229 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
 230 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
 231         .gpio_pwdown            = GPIO_NR_PALMTC_IR_DISABLE,
 232         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 233 };
 234
 235 static void __init palmtc_irda_init(void)
 236 {
 237         pxa_set_ficp_info(&palmtc_ficp_platform_data);
 238 }
 239 #else
 240 static inline void palmtc_irda_init(void) {}
 241 #endif
 242
 243 /******************************************************************************
 244  * Keyboard
 245  ******************************************************************************/
 246 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
 247 static const uint32_t palmtc_matrix_keys[] = {
 248         KEY(0, 0, KEY_F1),
 249         KEY(0, 1, KEY_X),
 250         KEY(0, 2, KEY_POWER),
 251         KEY(0, 3, KEY_TAB),
 252         KEY(0, 4, KEY_A),
 253         KEY(0, 5, KEY_Q),
 254         KEY(0, 6, KEY_LEFTSHIFT),
 255         KEY(0, 7, KEY_Z),
 256         KEY(0, 8, KEY_S),
 257         KEY(0, 9, KEY_W),
 258         KEY(0, 10, KEY_E),
 259         KEY(0, 11, KEY_UP),
 260
 261         KEY(1, 0, KEY_F2),
 262         KEY(1, 1, KEY_DOWN),
 263         KEY(1, 3, KEY_D),
 264         KEY(1, 4, KEY_C),
 265         KEY(1, 5, KEY_F),
 266         KEY(1, 6, KEY_R),
 267         KEY(1, 7, KEY_SPACE),
 268         KEY(1, 8, KEY_V),
 269         KEY(1, 9, KEY_G),
 270         KEY(1, 10, KEY_T),
 271         KEY(1, 11, KEY_LEFT),
 272
 273         KEY(2, 0, KEY_F3),
 274         KEY(2, 1, KEY_LEFTCTRL),
 275         KEY(2, 3, KEY_H),
 276         KEY(2, 4, KEY_Y),
 277         KEY(2, 5, KEY_N),
 278         KEY(2, 6, KEY_J),
 279         KEY(2, 7, KEY_U),
 280         KEY(2, 8, KEY_M),
 281         KEY(2, 9, KEY_K),
 282         KEY(2, 10, KEY_I),
 283         KEY(2, 11, KEY_RIGHT),
 284
 285         KEY(3, 0, KEY_F4),
 286         KEY(3, 1, KEY_ENTER),
 287         KEY(3, 3, KEY_DOT),
 288         KEY(3, 4, KEY_L),
 289         KEY(3, 5, KEY_O),
 290         KEY(3, 6, KEY_LEFTALT),
 291         KEY(3, 7, KEY_ENTER),
 292         KEY(3, 8, KEY_BACKSPACE),
 293         KEY(3, 9, KEY_P),
 294         KEY(3, 10, KEY_B),
 295         KEY(3, 11, KEY_FN),
 296 };
 297
 298 const struct matrix_keymap_data palmtc_keymap_data = {
 299         .keymap                 = palmtc_matrix_keys,
 300         .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
 301 };
 302
 303 static const unsigned int palmtc_keypad_row_gpios[] = {
 304         0, 9, 10, 11
 305 };
 306
 307 static const unsigned int palmtc_keypad_col_gpios[] = {
 308         18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
 309 };
 310
 311 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
 312         .keymap_data    = &palmtc_keymap_data,
 313         .row_gpios      = palmtc_keypad_row_gpios,
 314         .num_row_gpios  = ARRAY_SIZE(palmtc_keypad_row_gpios),
 315         .col_gpios      = palmtc_keypad_col_gpios,
 316         .num_col_gpios  = ARRAY_SIZE(palmtc_keypad_col_gpios),
 317         .active_low     = 1,
 318
 319         .debounce_ms            = 20,
 320         .col_scan_delay_us      = 5,
 321 };
 322
 323 static struct platform_device palmtc_keyboard = {
 324         .name   = "matrix-keypad",
 325         .id     = -1,
 326         .dev    = {
 327                 .platform_data = &palmtc_keypad_platform_data,
 328         },
 329 };
 330 static void __init palmtc_mkp_init(void)
 331 {
 332         platform_device_register(&palmtc_keyboard);
 333 }
 334 #else
 335 static inline void palmtc_mkp_init(void) {}
 336 #endif
 337
 338 /******************************************************************************
 339  * UDC
 340  ******************************************************************************/
 341 #if defined(CONFIG_USB_GADGET_PXA25X)||defined(CONFIG_USB_GADGET_PXA25X_MODULE)
 342 static struct gpio_vbus_mach_info palmtc_udc_info = {
 343         .gpio_vbus              = GPIO_NR_PALMTC_USB_DETECT_N,
 344         .gpio_vbus_inverted     = 1,
 345         .gpio_pullup            = GPIO_NR_PALMTC_USB_POWER,
 346 };
 347
 348 static struct platform_device palmtc_gpio_vbus = {
 349         .name   = "gpio-vbus",
 350         .id     = -1,
 351         .dev    = {
 352                 .platform_data  = &palmtc_udc_info,
 353         },
 354 };
 355
 356 static void __init palmtc_udc_init(void)
 357 {
 358         platform_device_register(&palmtc_gpio_vbus);
 359 };
 360 #else
 361 static inline void palmtc_udc_init(void) {}
 362 #endif
 363
 364 /******************************************************************************
 365  * Touchscreen / Battery / GPIO-extender
 366  ******************************************************************************/
 367 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 368         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 369 static struct platform_device palmtc_ucb1400_device = {
 370         .name   = "ucb1400_core",
 371         .id     = -1,
 372 };
 373
 374 static void __init palmtc_ts_init(void)
 375 {
 376         pxa_set_ac97_info(NULL);
 377         platform_device_register(&palmtc_ucb1400_device);
 378 }
 379 #else
 380 static inline void palmtc_ts_init(void) {}
 381 #endif
 382
 383 /******************************************************************************
 384  * LEDs
 385  ******************************************************************************/
 386 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 387 struct gpio_led palmtc_gpio_leds[] = {
 388 {
 389         .name                   = "palmtc:green:user",
 390         .default_trigger        = "none",
 391         .gpio                   = GPIO_NR_PALMTC_LED_POWER,
 392         .active_low             = 1,
 393 }, {
 394         .name                   = "palmtc:vibra:vibra",
 395         .default_trigger        = "none",
 396         .gpio                   = GPIO_NR_PALMTC_VIBRA_POWER,
 397         .active_low             = 1,
 398 }
 399
 400 };
 401
 402 static struct gpio_led_platform_data palmtc_gpio_led_info = {
 403         .leds           = palmtc_gpio_leds,
 404         .num_leds       = ARRAY_SIZE(palmtc_gpio_leds),
 405 };
 406
 407 static struct platform_device palmtc_leds = {
 408         .name   = "leds-gpio",
 409         .id     = -1,
 410         .dev    = {
 411                 .platform_data  = &palmtc_gpio_led_info,
 412         }
 413 };
 414
 415 static void __init palmtc_leds_init(void)
 416 {
 417         platform_device_register(&palmtc_leds);
 418 }
 419 #else
 420 static inline void palmtc_leds_init(void) {}
 421 #endif
 422
 423 /******************************************************************************
 424  * NOR Flash
 425  ******************************************************************************/
 426 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 427 static struct resource palmtc_flash_resource = {
 428         .start  = PXA_CS0_PHYS,
 429         .end    = PXA_CS0_PHYS + SZ_16M - 1,
 430         .flags  = IORESOURCE_MEM,
 431 };
 432
 433 static struct mtd_partition palmtc_flash_parts[] = {
 434         {
 435                 .name   = "U-Boot Bootloader",
 436                 .offset = 0x0,
 437                 .size   = 0x40000,
 438         },
 439         {
 440                 .name   = "Linux Kernel",
 441                 .offset = 0x40000,
 442                 .size   = 0x2c0000,
 443         },
 444         {
 445                 .name   = "Filesystem",
 446                 .offset = 0x300000,
 447                 .size   = 0xcc0000,
 448         },
 449         {
 450                 .name   = "U-Boot Environment",
 451                 .offset = 0xfc0000,
 452                 .size   = MTDPART_SIZ_FULL,
 453         },
 454 };
 455
 456 static struct physmap_flash_data palmtc_flash_data = {
 457         .width          = 4,
 458         .parts          = palmtc_flash_parts,
 459         .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
 460 };
 461
 462 static struct platform_device palmtc_flash = {
 463         .name           = "physmap-flash",
 464         .id             = -1,
 465         .resource       = &palmtc_flash_resource,
 466         .num_resources  = 1,
 467         .dev = {
 468                 .platform_data  = &palmtc_flash_data,
 469         },
 470 };
 471
 472 static void __init palmtc_nor_init(void)
 473 {
 474         platform_device_register(&palmtc_flash);
 475 }
 476 #else
 477 static inline void palmtc_nor_init(void) {}
 478 #endif
 479
 480 /******************************************************************************
 481  * Framebuffer
 482  ******************************************************************************/
 483 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 484 static struct pxafb_mode_info palmtc_lcd_modes[] = {
 485         {
 486                 .pixclock       = 115384,
 487                 .xres           = 320,
 488                 .yres           = 320,
 489                 .bpp            = 16,
 490
 491                 .left_margin    = 27,
 492                 .right_margin   = 7,
 493                 .upper_margin   = 7,
 494                 .lower_margin   = 8,
 495
 496                 .hsync_len      = 6,
 497                 .vsync_len      = 1,
 498         },
 499 };
 500
 501 static struct pxafb_mach_info palmtc_lcd_screen = {
 502         .modes                  = palmtc_lcd_modes,
 503         .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
 504         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 505 };
 506
 507 static void __init palmtc_lcd_init(void)
 508 {
 509         pxa_set_fb_info(NULL, &palmtc_lcd_screen);
 510 }
 511 #else
 512 static inline void palmtc_lcd_init(void) {}
 513 #endif
 514
 515 /******************************************************************************
 516  * Machine init
 517  ******************************************************************************/
 518 static void __init palmtc_init(void)
 519 {
 520         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
 521
 522         pxa_set_ffuart_info(NULL);
 523         pxa_set_btuart_info(NULL);
 524         pxa_set_stuart_info(NULL);
 525         pxa_set_hwuart_info(NULL);
 526
 527         palmtc_mmc_init();
 528         palmtc_keys_init();
 529         palmtc_pwm_init();
 530         palmtc_irda_init();
 531         palmtc_mkp_init();
 532         palmtc_udc_init();
 533         palmtc_ts_init();
 534         palmtc_nor_init();
 535         palmtc_lcd_init();
 536         palmtc_leds_init();
 537 };
 538
 539 MACHINE_START(PALMTC, "Palm Tungsten|C")
 540         .atag_offset    = 0x100,
 541         .map_io         = pxa25x_map_io,
 542         .init_irq       = pxa25x_init_irq,
 543         .handle_irq     = pxa25x_handle_irq,
 544         .timer          = &pxa_timer,
 545         .init_machine   = palmtc_init
 546 MACHINE_END