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 struct pxaficp_platform_data palmtx_ficp_platform_data = {
 307         .gpio_pwdown            = GPIO_NR_PALMTX_IR_DISABLE,
 308         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 309 };
 310
 311 /******************************************************************************
 312  * UDC
 313  ******************************************************************************/
 314 static struct gpio_vbus_mach_info palmtx_udc_info = {
 315         .gpio_vbus              = GPIO_NR_PALMTX_USB_DETECT_N,
 316         .gpio_vbus_inverted     = 1,
 317         .gpio_pullup            = GPIO_NR_PALMTX_USB_PULLUP,
 318 };
 319
 320 static struct platform_device palmtx_gpio_vbus = {
 321         .name   = "gpio-vbus",
 322         .id     = -1,
 323         .dev    = {
 324                 .platform_data  = &palmtx_udc_info,
 325         },
 326 };
 327
 328 /******************************************************************************
 329  * Power supply
 330  ******************************************************************************/
 331 static int power_supply_init(struct device *dev)
 332 {
 333         int ret;
 334
 335         ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
 336         if (ret)
 337                 goto err1;
 338         ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
 339         if (ret)
 340                 goto err2;
 341
 342         return 0;
 343
 344 err2:
 345         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 346 err1:
 347         return ret;
 348 }
 349
 350 static int palmtx_is_ac_online(void)
 351 {
 352         return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
 353 }
 354
 355 static void power_supply_exit(struct device *dev)
 356 {
 357         gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
 358 }
 359
 360 static char *palmtx_supplicants[] = {
 361         "main-battery",
 362 };
 363
 364 static struct pda_power_pdata power_supply_info = {
 365         .init            = power_supply_init,
 366         .is_ac_online    = palmtx_is_ac_online,
 367         .exit            = power_supply_exit,
 368         .supplied_to     = palmtx_supplicants,
 369         .num_supplicants = ARRAY_SIZE(palmtx_supplicants),
 370 };
 371
 372 static struct platform_device power_supply = {
 373         .name = "pda-power",
 374         .id   = -1,
 375         .dev  = {
 376                 .platform_data = &power_supply_info,
 377         },
 378 };
 379
 380 /******************************************************************************
 381  * WM97xx battery
 382  ******************************************************************************/
 383 static struct wm97xx_batt_info wm97xx_batt_pdata = {
 384         .batt_aux       = WM97XX_AUX_ID3,
 385         .temp_aux       = WM97XX_AUX_ID2,
 386         .charge_gpio    = -1,
 387         .max_voltage    = PALMTX_BAT_MAX_VOLTAGE,
 388         .min_voltage    = PALMTX_BAT_MIN_VOLTAGE,
 389         .batt_mult      = 1000,
 390         .batt_div       = 414,
 391         .temp_mult      = 1,
 392         .temp_div       = 1,
 393         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
 394         .batt_name      = "main-batt",
 395 };
 396
 397 /******************************************************************************
 398  * aSoC audio
 399  ******************************************************************************/
 400 static struct palm27x_asoc_info palmtx_asoc_pdata = {
 401         .jack_gpio      = GPIO_NR_PALMTX_EARPHONE_DETECT,
 402 };
 403
 404 static pxa2xx_audio_ops_t palmtx_ac97_pdata = {
 405         .reset_gpio     = 95,
 406 };
 407
 408 static struct platform_device palmtx_asoc = {
 409         .name = "palm27x-asoc",
 410         .id   = -1,
 411         .dev  = {
 412                 .platform_data = &palmtx_asoc_pdata,
 413         },
 414 };
 415
 416 /******************************************************************************
 417  * Framebuffer
 418  ******************************************************************************/
 419 static struct pxafb_mode_info palmtx_lcd_modes[] = {
 420 {
 421         .pixclock       = 57692,
 422         .xres           = 320,
 423         .yres           = 480,
 424         .bpp            = 16,
 425
 426         .left_margin    = 32,
 427         .right_margin   = 1,
 428         .upper_margin   = 7,
 429         .lower_margin   = 1,
 430
 431         .hsync_len      = 4,
 432         .vsync_len      = 1,
 433 },
 434 };
 435
 436 static struct pxafb_mach_info palmtx_lcd_screen = {
 437         .modes          = palmtx_lcd_modes,
 438         .num_modes      = ARRAY_SIZE(palmtx_lcd_modes),
 439         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 440 };
 441
 442 /******************************************************************************
 443  * NAND Flash
 444  ******************************************************************************/
 445 static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd,
 446                                  unsigned int ctrl)
 447 {
 448         struct nand_chip *this = mtd->priv;
 449         unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
 450
 451         if (cmd == NAND_CMD_NONE)
 452                 return;
 453
 454         if (ctrl & NAND_CLE)
 455                 writeb(cmd, PALMTX_NAND_CLE_VIRT);
 456         else if (ctrl & NAND_ALE)
 457                 writeb(cmd, PALMTX_NAND_ALE_VIRT);
 458         else
 459                 writeb(cmd, nandaddr);
 460 }
 461
 462 static struct mtd_partition palmtx_partition_info[] = {
 463         [0] = {
 464                 .name   = "palmtx-0",
 465                 .offset = 0,
 466                 .size   = MTDPART_SIZ_FULL
 467         },
 468 };
 469
 470 static const char *palmtx_part_probes[] = { "cmdlinepart", NULL };
 471
 472 struct platform_nand_data palmtx_nand_platdata = {
 473         .chip   = {
 474                 .nr_chips               = 1,
 475                 .chip_offset            = 0,
 476                 .nr_partitions          = ARRAY_SIZE(palmtx_partition_info),
 477                 .partitions             = palmtx_partition_info,
 478                 .chip_delay             = 20,
 479                 .part_probe_types       = palmtx_part_probes,
 480         },
 481         .ctrl   = {
 482                 .cmd_ctrl       = palmtx_nand_cmd_ctl,
 483         },
 484 };
 485
 486 static struct resource palmtx_nand_resource[] = {
 487         [0]     = {
 488                 .start  = PXA_CS1_PHYS,
 489                 .end    = PXA_CS1_PHYS + SZ_1M - 1,
 490                 .flags  = IORESOURCE_MEM,
 491         },
 492 };
 493
 494 static struct platform_device palmtx_nand = {
 495         .name           = "gen_nand",
 496         .num_resources  = ARRAY_SIZE(palmtx_nand_resource),
 497         .resource       = palmtx_nand_resource,
 498         .id             = -1,
 499         .dev            = {
 500                 .platform_data  = &palmtx_nand_platdata,
 501         }
 502 };
 503
 504 /******************************************************************************
 505  * Power management - standby
 506  ******************************************************************************/
 507 static void __init palmtx_pm_init(void)
 508 {
 509         static u32 resume[] = {
 510                 0xe3a00101,     /* mov  r0,     #0x40000000 */
 511                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
 512                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
 513         };
 514
 515         /* copy the bootloader */
 516         memcpy(phys_to_virt(PALMTX_STR_BASE), resume, sizeof(resume));
 517 }
 518
 519 /******************************************************************************
 520  * Machine init
 521  ******************************************************************************/
 522 static struct platform_device *devices[] __initdata = {
 523 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 524         &palmtx_pxa_keys,
 525 #endif
 526         &palmtx_backlight,
 527         &power_supply,
 528         &palmtx_asoc,
 529         &palmtx_gpio_vbus,
 530         &palmtx_flash,
 531         &palmtx_nand,
 532 };
 533
 534 static struct map_desc palmtx_io_desc[] __initdata = {
 535 {
 536         .virtual        = PALMTX_PCMCIA_VIRT,
 537         .pfn            = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
 538         .length         = PALMTX_PCMCIA_SIZE,
 539         .type           = MT_DEVICE,
 540 }, {
 541         .virtual        = PALMTX_NAND_ALE_VIRT,
 542         .pfn            = __phys_to_pfn(PALMTX_NAND_ALE_PHYS),
 543         .length         = SZ_1M,
 544         .type           = MT_DEVICE,
 545 }, {
 546         .virtual        = PALMTX_NAND_CLE_VIRT,
 547         .pfn            = __phys_to_pfn(PALMTX_NAND_CLE_PHYS),
 548         .length         = SZ_1M,
 549         .type           = MT_DEVICE,
 550 }
 551 };
 552
 553 static void __init palmtx_map_io(void)
 554 {
 555         pxa_map_io();
 556         iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
 557 }
 558
 559 /* setup udc GPIOs initial state */
 560 static void __init palmtx_udc_init(void)
 561 {
 562         if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
 563                 gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
 564                 gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
 565         }
 566 }
 567
 568
 569 static void __init palmtx_init(void)
 570 {
 571         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
 572
 573         palmtx_pm_init();
 574         set_pxa_fb_info(&palmtx_lcd_screen);
 575         pxa_set_mci_info(&palmtx_mci_platform_data);
 576         palmtx_udc_init();
 577         pxa_set_ac97_info(&palmtx_ac97_pdata);
 578         pxa_set_ficp_info(&palmtx_ficp_platform_data);
 579         pxa_set_keypad_info(&palmtx_keypad_platform_data);
 580         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
 581
 582         platform_add_devices(devices, ARRAY_SIZE(devices));
 583 }
 584
 585 MACHINE_START(PALMTX, "Palm T|X")
 586         .phys_io        = PALMTX_PHYS_IO_START,
 587         .io_pg_offst    = io_p2v(0x40000000),
 588         .boot_params    = 0xa0000100,
 589         .map_io         = palmtx_map_io,
 590         .init_irq       = pxa27x_init_irq,
 591         .timer          = &pxa_timer,
 592         .init_machine   = palmtx_init
 593 MACHINE_END