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         GPIOxx_LCD_TFT_16BPP,
 114
 115         /* FFUART */
 116         GPIO34_FFUART_RXD,
 117         GPIO39_FFUART_TXD,
 118
 119         /* NAND */
 120         GPIO15_nCS_1,
 121         GPIO18_RDY,
 122
 123         /* MISC. */
 124         GPIO10_GPIO,    /* hotsync button */
 125         GPIO12_GPIO,    /* power detect */
 126         GPIO107_GPIO,   /* earphone detect */
 127 };
 128
 129 /******************************************************************************
 130  * NOR Flash
 131  ******************************************************************************/
 132 static struct mtd_partition palmtx_partitions[] = {
 133         {
 134                 .name           = "Flash",
 135                 .offset         = 0x00000000,
 136                 .size           = MTDPART_SIZ_FULL,
 137                 .mask_flags     = 0
 138         }
 139 };
 140
 141 static struct physmap_flash_data palmtx_flash_data[] = {
 142         {
 143                 .width          = 2,                    /* bankwidth in bytes */
 144                 .parts          = palmtx_partitions,
 145                 .nr_parts       = ARRAY_SIZE(palmtx_partitions)
 146         }
 147 };
 148
 149 static struct resource palmtx_flash_resource = {
 150         .start  = PXA_CS0_PHYS,
 151         .end    = PXA_CS0_PHYS + SZ_8M - 1,
 152         .flags  = IORESOURCE_MEM,
 153 };
 154
 155 static struct platform_device palmtx_flash = {
 156         .name           = "physmap-flash",
 157         .id             = 0,
 158         .resource       = &palmtx_flash_resource,
 159         .num_resources  = 1,
 160         .dev            = {
 161                 .platform_data = palmtx_flash_data,
 162         },
 163 };
 164
 165 /******************************************************************************
 166  * SD/MMC card controller
 167  ******************************************************************************/
 168 static struct pxamci_platform_data palmtx_mci_platform_data = {
 169         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 170         .gpio_card_detect       = GPIO_NR_PALMTX_SD_DETECT_N,
 171         .gpio_card_ro           = GPIO_NR_PALMTX_SD_READONLY,
 172         .gpio_power             = GPIO_NR_PALMTX_SD_POWER,
 173         .detect_delay_ms        = 200,
 174 };
 175
 176 /******************************************************************************
 177  * GPIO keyboard
 178  ******************************************************************************/
 179 static unsigned int palmtx_matrix_keys[] = {
 180         KEY(0, 0, KEY_POWER),
 181         KEY(0, 1, KEY_F1),
 182         KEY(0, 2, KEY_ENTER),
 183
 184         KEY(1, 0, KEY_F2),
 185         KEY(1, 1, KEY_F3),
 186         KEY(1, 2, KEY_F4),
 187
 188         KEY(2, 0, KEY_UP),
 189         KEY(2, 2, KEY_DOWN),
 190
 191         KEY(3, 0, KEY_RIGHT),
 192         KEY(3, 2, KEY_LEFT),
 193 };
 194
 195 static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
 196         .matrix_key_rows        = 4,
 197         .matrix_key_cols        = 3,
 198         .matrix_key_map         = palmtx_matrix_keys,
 199         .matrix_key_map_size    = ARRAY_SIZE(palmtx_matrix_keys),
 200
 201         .debounce_interval      = 30,
 202 };
 203
 204 /******************************************************************************
 205  * GPIO keys
 206  ******************************************************************************/
 207 static struct gpio_keys_button palmtx_pxa_buttons[] = {
 208         {KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
 209 };
 210
 211 static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
 212         .buttons        = palmtx_pxa_buttons,
 213         .nbuttons       = ARRAY_SIZE(palmtx_pxa_buttons),
 214 };
 215
 216 static struct platform_device palmtx_pxa_keys = {
 217         .name   = "gpio-keys",
 218         .id     = -1,
 219         .dev    = {
 220                 .platform_data = &palmtx_pxa_keys_data,
 221         },
 222 };
 223
 224 /******************************************************************************
 225  * Backlight
 226  ******************************************************************************/
 227 static int palmtx_backlight_init(struct device *dev)
 228 {
 229         int ret;
 230
 231         ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
 232         if (ret)
 233                 goto err;
 234         ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
 235         if (ret)
 236                 goto err2;
 237         ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
 238         if (ret)
 239                 goto err2;
 240         ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
 241         if (ret)
 242                 goto err3;
 243
 244         return 0;
 245 err3:
 246         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 247 err2:
 248         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 249 err:
 250         return ret;
 251 }
 252
 253 static int palmtx_backlight_notify(struct device *dev, int brightness)
 254 {
 255         gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
 256         gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
 257         return brightness;
 258 }
 259
 260 static void palmtx_backlight_exit(struct device *dev)
 261 {
 262         gpio_free(GPIO_NR_PALMTX_BL_POWER);
 263         gpio_free(GPIO_NR_PALMTX_LCD_POWER);
 264 }
 265
 266 static struct platform_pwm_backlight_data palmtx_backlight_data = {
 267         .pwm_id         = 0,
 268         .max_brightness = PALMTX_MAX_INTENSITY,
 269         .dft_brightness = PALMTX_MAX_INTENSITY,
 270         .pwm_period_ns  = PALMTX_PERIOD_NS,
 271         .init           = palmtx_backlight_init,
 272         .notify         = palmtx_backlight_notify,
 273         .exit           = palmtx_backlight_exit,
 274 };
 275
 276 static struct platform_device palmtx_backlight = {
 277         .name   = "pwm-backlight",
 278         .dev    = {
 279                 .parent         = &pxa27x_device_pwm0.dev,
 280                 .platform_data  = &palmtx_backlight_data,
 281         },
 282 };
 283
 284 /******************************************************************************
 285  * IrDA
 286  ******************************************************************************/
 287 static struct pxaficp_platform_data palmtx_ficp_platform_data = {
 288         .gpio_pwdown            = GPIO_NR_PALMTX_IR_DISABLE,
 289         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 290 };
 291
 292 /******************************************************************************
 293  * UDC
 294  ******************************************************************************/
 295 static struct gpio_vbus_mach_info palmtx_udc_info = {
 296         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 297         .gpio_vbus_inverted     = 1,
 298         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 299 };
 300
 301 static struct platform_device palmtx_gpio_vbus = {
 302         .name   = "gpio-vbus",
 303         .id     = -1,
 304         .dev    = {
 305                 .platform_data  = &palmtx_udc_info,
 306         },
 307 };
 308
 309 /******************************************************************************
 310  * Power supply
 311  ******************************************************************************/
 312 static int power_supply_init(struct device *dev)
 313 {
 314         int ret;
 315
 316         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 317         if (ret)
 318                 goto err1;
 319         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 320         if (ret)
 321                 goto err2;
 322
 323         return 0;
 324
 325 err2:
 326         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 327 err1:
 328         return ret;
 329 }
 330
 331 static int palmtx_is_ac_online(void)
 332 {
 333         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 334 }
 335
 336 static void power_supply_exit(struct device *dev)
 337 {
 338         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 339 }
 340
 341 static char *palmtx_supplicants[] = {
 342         "main-battery",
 343 };
 344
 345 static struct pda_power_pdata power_supply_info = {
 346         .init            = power_supply_init,
 347         .is_ac_online    = palmtx_is_ac_online,
 348         .exit            = power_supply_exit,
 349         .supplied_to     = palmtx_supplicants,
 350         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 351 };
 352
 353 static struct platform_device power_supply = {
 354         .name = "pda-power",
 355         .id   = -1,
 356         .dev  = {
 357                 .platform_data = &power_supply_info,
 358         },
 359 };
 360
 361 /******************************************************************************
 362  * WM97xx battery
 363  ******************************************************************************/
 364 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 365         .batt_aux       = WM97XX_AUX_ID3,
 366         .temp_aux       = WM97XX_AUX_ID2,
 367         .charge_gpio    = -1,
 368         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 369         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 370         .batt_mult      = 1000,
 371         .batt_div       = 414,
 372         .temp_mult      = 1,
 373         .temp_div       = 1,
 374         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 375         .batt_name      = "main-batt",
 376 };
 377
 378 /******************************************************************************
 379  * aSoC audio
 380  ******************************************************************************/
 381 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 382         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 383 };
 384
 385 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 386         .reset_gpio     = 95,
 387 };
 388
 389 static struct platform_device palmtx_asoc = {
 390         .name = "palm27x-asoc",
 391         .id   = -1,
 392         .dev  = {
 393                 .platform_data = &palmtx_asoc_pdata,
 394         },
 395 };
 396
 397 /******************************************************************************
 398  * Framebuffer
 399  ******************************************************************************/
 400 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 401 {
 402         .pixclock       = 57692,
 403         .xres           = 320,
 404         .yres           = 480,
 405         .bpp            = 16,
 406
 407         .left_margin    = 32,
 408         .right_margin   = 1,
 409         .upper_margin   = 7,
 410         .lower_margin   = 1,
 411
 412         .hsync_len      = 4,
 413         .vsync_len      = 1,
 414 },
 415 };
 416
 417 static struct pxafb_mach_info palmtx_lcd_screen = {
 418         .modes          = palmtx_lcd_modes,
 419         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 420         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 421 };
 422
 423 /******************************************************************************
 424  * NAND Flash
 425  ******************************************************************************/
 426 static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
 427                                  unsigned int ctrl)
 428 {
 429         struct nand_chip *this = mtd->priv;
 430         unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
 431
 432         if (cmd == NAND_CMD_NONE)
 433                 return;
 434
 435         if (ctrl & NAND_CLE)
 436                 writeb(cmd, PALMTX_NAND_CLE_VIRT);
 437         else if (ctrl & NAND_ALE)
 438                 writeb(cmd, PALMTX_NAND_ALE_VIRT);
 439         else
 440                 writeb(cmd, nandaddr);
 441 }
 442
 443 static struct mtd_partition palmtx_partition_info[] = {
 444         [0] = {
 445                 .name   = "palmtx-0",
 446                 .offset = 0,
 447                 .size   = MTDPART_SIZ_FULL
 448         },
 449 };
 450
 451 static const char *palmtx_part_probes[] = { "cmdlinepart", NULL };
 452
 453 struct platform_nand_data palmtx_nand_platdata = {
 454         .chip   = {
 455                 .nr_chips               = 1,
 456                 .chip_offset            = 0,
 457                 .nr_partitions          = ARRAY_SIZE(palmtx_partition_info),
 458                 .partitions             = palmtx_partition_info,
 459                 .chip_delay             = 20,
 460                 .part_probe_types       = palmtx_part_probes,
 461         },
 462         .ctrl   = {
 463                 .cmd_ctrl       = palmtx_nand_cmd_ctl,
 464         },
 465 };
 466
 467 static struct resource palmtx_nand_resource[] = {
 468         [0]     = {
 469                 .start  = PXA_CS1_PHYS,
 470                 .end    = PXA_CS1_PHYS + SZ_1M - 1,
 471                 .flags  = IORESOURCE_MEM,
 472         },
 473 };
 474
 475 static struct platform_device palmtx_nand = {
 476         .name           = "gen_nand",
 477         .num_resources  = ARRAY_SIZE(palmtx_nand_resource),
 478         .resource       = palmtx_nand_resource,
 479         .id             = -1,
 480         .dev            = {
 481                 .platform_data  = &palmtx_nand_platdata,
 482         }
 483 };
 484
 485 /******************************************************************************
 486  * Power management - standby
 487  ******************************************************************************/
 488 static void __init palmtx_pm_init(void)
 489 {
 490         static u32 resume[] = {
 491                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 492                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 493                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 494         };
 495
 496         /* copy the bootloader */
 497         memcpy(phys_to_virt(PALMTX_STR_BASE), resume, sizeof(resume));
 498 }
 499
 500 /******************************************************************************
 501  * Machine init
 502  ******************************************************************************/
 503 static struct platform_device *devices[] __initdata = {
 504 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 505         &palmtx_pxa_keys,
 506 #endif
 507         &palmtx_backlight,
 508         &power_supply,
 509         &palmtx_asoc,
 510         &palmtx_gpio_vbus,
 511         &palmtx_flash,
 512         &palmtx_nand,
 513 };
 514
 515 static struct map_desc palmtx_io_desc[] __initdata = {
 516 {
 517         .virtual        = PALMTX_PCMCIA_VIRT,
 518         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 519         .length         = PALMTX_PCMCIA_SIZE,
 520         .type           = MT_DEVICE,
 521 }, {
 522         .virtual        = PALMTX_NAND_ALE_VIRT,
 523         .pfn            = __phys_to_pfn(PALMTX_NAND_ALE_PHYS),
 524         .length         = SZ_1M,
 525         .type           = MT_DEVICE,
 526 }, {
 527         .virtual        = PALMTX_NAND_CLE_VIRT,
 528         .pfn            = __phys_to_pfn(PALMTX_NAND_CLE_PHYS),
 529         .length         = SZ_1M,
 530         .type           = MT_DEVICE,
 531 }
 532 };
 533
 534 static void __init palmtx_map_io(void)
 535 {
 536         pxa_map_io();
 537         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 538 }
 539
 540 /* setup udc GPIOs initial state */
 541 static void __init palmtx_udc_init(void)
 542 {
 543         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 544                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 545                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 546         }
 547 }
 548
 549
 550 static void __init palmtx_init(void)
 551 {
 552         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 553
 554         pxa_set_ffuart_info(NULL);
 555         pxa_set_btuart_info(NULL);
 556         pxa_set_stuart_info(NULL);
 557
 558         palmtx_pm_init();
 559         set_pxa_fb_info(&palmtx_lcd_screen);
 560         pxa_set_mci_info(&palmtx_mci_platform_data);
 561         palmtx_udc_init();
 562         pxa_set_ac97_info(&palmtx_ac97_pdata);
 563         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 564         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 565         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 566
 567         platform_add_devices(devices, ARRAY_SIZE(devices));
 568 }
 569
 570 MACHINE_START(PALMTX, "Palm T|X")
 571         .phys_io        = PALMTX_PHYS_IO_START,
 572         .io_pg_offst    = io_p2v(0x40000000),
 573         .boot_params    = 0xa0000100,
 574         .map_io         = palmtx_map_io,
 575         .init_irq       = pxa27x_init_irq,
 576         .timer          = &pxa_timer,
 577         .init_machine   = palmtx_init
 578 MACHINE_END