arch/arm/mach-pxa/palmtx.c

   1 /*
   2  * Hardware definitions for PalmTX
   3  *
   4  * Author:     Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on work of:
   7  *              Alex Osborne <ato@meshy.org>
   8  *              Cristiano P. <cristianop@users.sourceforge.net>
   9  *              Jan Herman <2hp@seznam.cz>
  10  *              Michal Hrusecky
  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  * (find more info at www.hackndev.com)
  17  *
  18  */
  19
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/irq.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/input.h>
  25 #include <linux/pda_power.h>
  26 #include <linux/pwm_backlight.h>
  27 #include <linux/gpio.h>
  28 #include <linux/wm97xx_batt.h>
  29 #include <linux/power_supply.h>
  30 #include <linux/usb/gpio_vbus.h>
  31 #include <linux/mtd/nand.h>
  32 #include <linux/mtd/partitions.h>
  33 #include <linux/mtd/mtd.h>
  34 #include <linux/mtd/physmap.h>
  35
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39
  40 #include <mach/pxa27x.h>
  41 #include <mach/audio.h>
  42 #include <mach/palmtx.h>
  43 #include <mach/mmc.h>
  44 #include <mach/pxafb.h>
  45 #include <mach/irda.h>
  46 #include <mach/pxa27x_keypad.h>
  47 #include <mach/udc.h>
  48 #include <mach/palmasoc.h>
  49
  50 #include "generic.h"
  51 #include "devices.h"
  52
  53 /******************************************************************************
  54  * Pin configuration
  55  ******************************************************************************/
  56 static unsigned long palmtx_pin_config[] __initdata = {
  57         /* MMC */
  58         GPIO32_MMC_CLK,
  59         GPIO92_MMC_DAT_0,
  60         GPIO109_MMC_DAT_1,
  61         GPIO110_MMC_DAT_2,
  62         GPIO111_MMC_DAT_3,
  63         GPIO112_MMC_CMD,
  64         GPIO14_GPIO,    /* SD detect */
  65         GPIO114_GPIO,   /* SD power */
  66         GPIO115_GPIO,   /* SD r/o switch */
  67
  68         /* AC97 */
  69         GPIO28_AC97_BITCLK,
  70         GPIO29_AC97_SDATA_IN_0,
  71         GPIO30_AC97_SDATA_OUT,
  72         GPIO31_AC97_SYNC,
  73         GPIO89_AC97_SYSCLK,
  74         GPIO95_AC97_nRESET,
  75
  76         /* IrDA */
  77         GPIO40_GPIO,    /* ir disable */
  78         GPIO46_FICP_RXD,
  79         GPIO47_FICP_TXD,
  80
  81         /* PWM */
  82         GPIO16_PWM0_OUT,
  83
  84         /* USB */
  85         GPIO13_GPIO,    /* usb detect */
  86         GPIO93_GPIO,    /* usb power */
  87
  88         /* PCMCIA */
  89         GPIO48_nPOE,
  90         GPIO49_nPWE,
  91         GPIO50_nPIOR,
  92         GPIO51_nPIOW,
  93         GPIO85_nPCE_1,
  94         GPIO54_nPCE_2,
  95         GPIO79_PSKTSEL,
  96         GPIO55_nPREG,
  97         GPIO56_nPWAIT,
  98         GPIO57_nIOIS16,
  99         GPIO94_GPIO,    /* wifi power 1 */
 100         GPIO108_GPIO,   /* wifi power 2 */
 101         GPIO116_GPIO,   /* wifi ready */
 102
 103         /* MATRIX KEYPAD */
 104         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
 105         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
 106         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
 107         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
 108         GPIO103_KP_MKOUT_0,
 109         GPIO104_KP_MKOUT_1,
 110         GPIO105_KP_MKOUT_2,
 111
 112         /* LCD */
 113         GPIO58_LCD_LDD_0,
 114         GPIO59_LCD_LDD_1,
 115         GPIO60_LCD_LDD_2,
 116         GPIO61_LCD_LDD_3,
 117         GPIO62_LCD_LDD_4,
 118         GPIO63_LCD_LDD_5,
 119         GPIO64_LCD_LDD_6,
 120         GPIO65_LCD_LDD_7,
 121         GPIO66_LCD_LDD_8,
 122         GPIO67_LCD_LDD_9,
 123         GPIO68_LCD_LDD_10,
 124         GPIO69_LCD_LDD_11,
 125         GPIO70_LCD_LDD_12,
 126         GPIO71_LCD_LDD_13,
 127         GPIO72_LCD_LDD_14,
 128         GPIO73_LCD_LDD_15,
 129         GPIO74_LCD_FCLK,
 130         GPIO75_LCD_LCLK,
 131         GPIO76_LCD_PCLK,
 132         GPIO77_LCD_BIAS,
 133
 134         /* FFUART */
 135         GPIO34_FFUART_RXD,
 136         GPIO39_FFUART_TXD,
 137
 138         /* NAND */
 139         GPIO15_nCS_1,
 140         GPIO18_RDY,
 141
 142         /* MISC. */
 143         GPIO10_GPIO,    /* hotsync button */
 144         GPIO12_GPIO,    /* power detect */
 145         GPIO107_GPIO,   /* earphone detect */
 146 };
 147
 148 /******************************************************************************
 149  * NOR Flash
 150  ******************************************************************************/
 151 static struct mtd_partition palmtx_partitions[] = {
 152         {
 153                 .name           = "Flash",
 154                 .offset         = 0x00000000,
 155                 .size           = MTDPART_SIZ_FULL,
 156                 .mask_flags     = 0
 157         }
 158 };
 159
 160 static struct physmap_flash_data palmtx_flash_data[] = {
 161         {
 162                 .width          = 2,                    /* bankwidth in bytes */
 163                 .parts          = palmtx_partitions,
 164                 .nr_parts       = ARRAY_SIZE(palmtx_partitions)
 165         }
 166 };
 167
 168 static struct resource palmtx_flash_resource = {
 169         .start  = PXA_CS0_PHYS,
 170         .end    = PXA_CS0_PHYS + SZ_8M - 1,
 171         .flags  = IORESOURCE_MEM,
 172 };
 173
 174 static struct platform_device palmtx_flash = {
 175         .name           = "physmap-flash",
 176         .id             = 0,
 177         .resource       = &palmtx_flash_resource,
 178         .num_resources  = 1,
 179         .dev            = {
 180                 .platform_data = palmtx_flash_data,
 181         },
 182 };
 183
 184 /******************************************************************************
 185  * SD/MMC card controller
 186  ******************************************************************************/
 187 static struct pxamci_platform_data palmtx_mci_platform_data = {
 188         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 189         .gpio_card_detect       = GPIO_NR_PALMTX_SD_DETECT_N,
 190         .gpio_card_ro           = GPIO_NR_PALMTX_SD_READONLY,
 191         .gpio_power             = GPIO_NR_PALMTX_SD_POWER,
 192         .detect_delay           = 20,
 193 };
 194
 195 /******************************************************************************
 196  * GPIO keyboard
 197  ******************************************************************************/
 198 static unsigned int palmtx_matrix_keys[] = {
 199         KEY(0, 0, KEY_POWER),
 200         KEY(0, 1, KEY_F1),
 201         KEY(0, 2, KEY_ENTER),
 202
 203         KEY(1, 0, KEY_F2),
 204         KEY(1, 1, KEY_F3),
 205         KEY(1, 2, KEY_F4),
 206
 207         KEY(2, 0, KEY_UP),
 208         KEY(2, 2, KEY_DOWN),
 209
 210         KEY(3, 0, KEY_RIGHT),
 211         KEY(3, 2, KEY_LEFT),
 212 };
 213
 214 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 215         .matrix_key_rows        = 4,
 216         .matrix_key_cols        = 3,
 217         .matrix_key_map         = palmtx_matrix_keys,
 218         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 219
 220         .debounce_interval      = 30,
 221 };
 222
 223 /******************************************************************************
 224  * GPIO keys
 225  ******************************************************************************/
 226 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 227         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 228 };
 229
 230 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 231         .buttons        = palmtx_pxa_buttons,
 232         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 233 };
 234
 235 static struct platform_device palmtx_pxa_keys = {
 236         .name   = "gpio-keys",
 237         .id     = -1,
 238         .dev    = {
 239                 .platform_data = &palmtx_pxa_keys_data,
 240         },
 241 };
 242
 243 /******************************************************************************
 244  * Backlight
 245  ******************************************************************************/
 246 static int palmtx_backlight_init(struct device *dev)
 247 {
 248         int ret;
 249
 250         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 251         if (ret)
 252                 goto err;
 253         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 254         if (ret)
 255                 goto err2;
 256         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 257         if (ret)
 258                 goto err2;
 259         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 260         if (ret)
 261                 goto err3;
 262
 263         return 0;
 264 err3:
 265         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 266 err2:
 267         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 268 err:
 269         return ret;
 270 }
 271
 272 static int palmtx_backlight_notify(int brightness)
 273 {
 274         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 275         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 276         return brightness;
 277 }
 278
 279 static void palmtx_backlight_exit(struct device *dev)
 280 {
 281         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 282         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 283 }
 284
 285 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 286         .pwm_id         = 0,
 287         .max_brightness = PALMTX_MAX_INTENSITY,
 288         .dft_brightness = PALMTX_MAX_INTENSITY,
 289         .pwm_period_ns  = PALMTX_PERIOD_NS,
 290         .init           = palmtx_backlight_init,
 291         .notify         = palmtx_backlight_notify,
 292         .exit           = palmtx_backlight_exit,
 293 };
 294
 295 static struct platform_device palmtx_backlight = {
 296         .name   = "pwm-backlight",
 297         .dev    = {
 298                 .parent         = &pxa27x_device_pwm0.dev,
 299                 .platform_data  = &palmtx_backlight_data,
 300         },
 301 };
 302
 303 /******************************************************************************
 304  * IrDA
 305  ******************************************************************************/
 306 static int palmtx_irda_startup(struct device *dev)
 307 {
 308         int err;
 309         err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
 310         if (err)
 311                 goto err;
 312         err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
 313         if (err)
 314                 gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 315 err:
 316         return err;
 317 }
 318
 319 static void palmtx_irda_shutdown(struct device *dev)
 320 {
 321         gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
 322 }
 323
 324 static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
 325 {
 326         gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
 327         pxa2xx_transceiver_mode(dev, mode);
 328 }
 329
 330 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 331         .startup                = palmtx_irda_startup,
 332         .shutdown               = palmtx_irda_shutdown,
 333         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 334         .transceiver_mode       = palmtx_irda_transceiver_mode,
 335 };
 336
 337 /******************************************************************************
 338  * UDC
 339  ******************************************************************************/
 340 static struct gpio_vbus_mach_info palmtx_udc_info = {
 341         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 342         .gpio_vbus_inverted     = 1,
 343         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 344 };
 345
 346 static struct platform_device palmtx_gpio_vbus = {
 347         .name   = "gpio-vbus",
 348         .id     = -1,
 349         .dev    = {
 350                 .platform_data  = &palmtx_udc_info,
 351         },
 352 };
 353
 354 /******************************************************************************
 355  * Power supply
 356  ******************************************************************************/
 357 static int power_supply_init(struct device *dev)
 358 {
 359         int ret;
 360
 361         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 362         if (ret)
 363                 goto err1;
 364         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 365         if (ret)
 366                 goto err2;
 367
 368         return 0;
 369
 370 err2:
 371         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 372 err1:
 373         return ret;
 374 }
 375
 376 static int palmtx_is_ac_online(void)
 377 {
 378         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 379 }
 380
 381 static void power_supply_exit(struct device *dev)
 382 {
 383         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 384 }
 385
 386 static char *palmtx_supplicants[] = {
 387         "main-battery",
 388 };
 389
 390 static struct pda_power_pdata power_supply_info = {
 391         .init            = power_supply_init,
 392         .is_ac_online    = palmtx_is_ac_online,
 393         .exit            = power_supply_exit,
 394         .supplied_to     = palmtx_supplicants,
 395         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 396 };
 397
 398 static struct platform_device power_supply = {
 399         .name = "pda-power",
 400         .id   = -1,
 401         .dev  = {
 402                 .platform_data = &power_supply_info,
 403         },
 404 };
 405
 406 /******************************************************************************
 407  * WM97xx battery
 408  ******************************************************************************/
 409 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 410         .batt_aux       = WM97XX_AUX_ID3,
 411         .temp_aux       = WM97XX_AUX_ID2,
 412         .charge_gpio    = -1,
 413         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 414         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 415         .batt_mult      = 1000,
 416         .batt_div       = 414,
 417         .temp_mult      = 1,
 418         .temp_div       = 1,
 419         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 420         .batt_name      = "main-batt",
 421 };
 422
 423 /******************************************************************************
 424  * aSoC audio
 425  ******************************************************************************/
 426 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 427         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 428 };
 429
 430 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 431         .reset_gpio     = 95,
 432 };
 433
 434 static struct platform_device palmtx_asoc = {
 435         .name = "palm27x-asoc",
 436         .id   = -1,
 437         .dev  = {
 438                 .platform_data = &palmtx_asoc_pdata,
 439         },
 440 };
 441
 442 /******************************************************************************
 443  * Framebuffer
 444  ******************************************************************************/
 445 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 446 {
 447         .pixclock       = 57692,
 448         .xres           = 320,
 449         .yres           = 480,
 450         .bpp            = 16,
 451
 452         .left_margin    = 32,
 453         .right_margin   = 1,
 454         .upper_margin   = 7,
 455         .lower_margin   = 1,
 456
 457         .hsync_len      = 4,
 458         .vsync_len      = 1,
 459 },
 460 };
 461
 462 static struct pxafb_mach_info palmtx_lcd_screen = {
 463         .modes          = palmtx_lcd_modes,
 464         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 465         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 466 };
 467
 468 /******************************************************************************
 469  * NAND Flash
 470  ******************************************************************************/
 471 static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
 472                                  unsigned int ctrl)
 473 {
 474         struct nand_chip *this = mtd->priv;
 475         unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
 476
 477         if (cmd == NAND_CMD_NONE)
 478                 return;
 479
 480         if (ctrl & NAND_CLE)
 481                 writeb(cmd, PALMTX_NAND_CLE_VIRT);
 482         else if (ctrl & NAND_ALE)
 483                 writeb(cmd, PALMTX_NAND_ALE_VIRT);
 484         else
 485                 writeb(cmd, nandaddr);
 486 }
 487
 488 static struct mtd_partition palmtx_partition_info[] = {
 489         [0] = {
 490                 .name   = "palmtx-0",
 491                 .offset = 0,
 492                 .size   = MTDPART_SIZ_FULL
 493         },
 494 };
 495
 496 static const char *palmtx_part_probes[] = { "cmdlinepart", NULL };
 497
 498 struct platform_nand_data palmtx_nand_platdata = {
 499         .chip   = {
 500                 .nr_chips               = 1,
 501                 .chip_offset            = 0,
 502                 .nr_partitions          = ARRAY_SIZE(palmtx_partition_info),
 503                 .partitions             = palmtx_partition_info,
 504                 .chip_delay             = 20,
 505                 .part_probe_types       = palmtx_part_probes,
 506         },
 507         .ctrl   = {
 508                 .cmd_ctrl       = palmtx_nand_cmd_ctl,
 509         },
 510 };
 511
 512 static struct resource palmtx_nand_resource[] = {
 513         [0]     = {
 514                 .start  = PXA_CS1_PHYS,
 515                 .end    = PXA_CS1_PHYS + SZ_1M - 1,
 516                 .flags  = IORESOURCE_MEM,
 517         },
 518 };
 519
 520 static struct platform_device palmtx_nand = {
 521         .name           = "gen_nand",
 522         .num_resources  = ARRAY_SIZE(palmtx_nand_resource),
 523         .resource       = palmtx_nand_resource,
 524         .id             = -1,
 525         .dev            = {
 526                 .platform_data  = &palmtx_nand_platdata,
 527         }
 528 };
 529
 530 /******************************************************************************
 531  * Power management - standby
 532  ******************************************************************************/
 533 static void __init palmtx_pm_init(void)
 534 {
 535         static u32 resume[] = {
 536                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 537                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 538                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 539         };
 540
 541         /* copy the bootloader */
 542         memcpy(phys_to_virt(PALMTX_STR_BASE), resume, sizeof(resume));
 543 }
 544
 545 /******************************************************************************
 546  * Machine init
 547  ******************************************************************************/
 548 static struct platform_device *devices[] __initdata = {
 549 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 550         &palmtx_pxa_keys,
 551 #endif
 552         &palmtx_backlight,
 553         &power_supply,
 554         &palmtx_asoc,
 555         &palmtx_gpio_vbus,
 556         &palmtx_flash,
 557         &palmtx_nand,
 558 };
 559
 560 static struct map_desc palmtx_io_desc[] __initdata = {
 561 {
 562         .virtual        = PALMTX_PCMCIA_VIRT,
 563         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 564         .length         = PALMTX_PCMCIA_SIZE,
 565         .type           = MT_DEVICE,
 566 }, {
 567         .virtual        = PALMTX_NAND_ALE_VIRT,
 568         .pfn            = __phys_to_pfn(PALMTX_NAND_ALE_PHYS),
 569         .length         = SZ_1M,
 570         .type           = MT_DEVICE,
 571 }, {
 572         .virtual        = PALMTX_NAND_CLE_VIRT,
 573         .pfn            = __phys_to_pfn(PALMTX_NAND_CLE_PHYS),
 574         .length         = SZ_1M,
 575         .type           = MT_DEVICE,
 576 }
 577 };
 578
 579 static void __init palmtx_map_io(void)
 580 {
 581         pxa_map_io();
 582         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 583 }
 584
 585 /* setup udc GPIOs initial state */
 586 static void __init palmtx_udc_init(void)
 587 {
 588         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 589                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 590                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 591         }
 592 }
 593
 594
 595 static void __init palmtx_init(void)
 596 {
 597         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 598
 599         palmtx_pm_init();
 600         set_pxa_fb_info(&palmtx_lcd_screen);
 601         pxa_set_mci_info(&palmtx_mci_platform_data);
 602         palmtx_udc_init();
 603         pxa_set_ac97_info(&palmtx_ac97_pdata);
 604         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 605         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 606         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 607
 608         platform_add_devices(devices, ARRAY_SIZE(devices));
 609 }
 610
 611 MACHINE_START(PALMTX, "Palm T|X")
 612         .phys_io        = PALMTX_PHYS_IO_START,
 613         .io_pg_offst    = io_p2v(0x40000000),
 614         .boot_params    = 0xa0000100,
 615         .map_io         = palmtx_map_io,
 616         .init_irq       = pxa27x_init_irq,
 617         .timer          = &pxa_timer,
 618         .init_machine   = palmtx_init
 619 MACHINE_END