arch/arm/mach-s3c24xx/mach-n30.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
   4 // Yakumo AlphaX and Airis NC05 PDAs.
   5 //
   6 // Copyright (c) 2003-2005 Simtec Electronics
   7 //      Ben Dooks <ben@simtec.co.uk>
   8 //
   9 // Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
  10 //
  11 // There is a wiki with more information about the n30 port at
  12 // https://handhelds.org/moin/moin.cgi/AcerN30Documentation .
  13
  14 #include <linux/kernel.h>
  15 #include <linux/types.h>
  16
  17 #include <linux/gpio_keys.h>
  18 #include <linux/init.h>
  19 #include <linux/gpio.h>
  20 #include <linux/gpio/machine.h>
  21 #include <linux/input.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/serial_core.h>
  25 #include <linux/serial_s3c.h>
  26 #include <linux/timer.h>
  27 #include <linux/io.h>
  28 #include <linux/mmc/host.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/irq.h>
  32 #include <asm/mach-types.h>
  33
  34 #include <mach/fb.h>
  35 #include <linux/platform_data/leds-s3c24xx.h>
  36 #include <mach/regs-gpio.h>
  37 #include <mach/regs-lcd.h>
  38 #include <mach/gpio-samsung.h>
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/irq.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <linux/platform_data/i2c-s3c2410.h>
  45
  46 #include <plat/cpu.h>
  47 #include <plat/devs.h>
  48 #include <plat/gpio-cfg.h>
  49 #include <linux/platform_data/mmc-s3cmci.h>
  50 #include <linux/platform_data/usb-s3c2410_udc.h>
  51
  52 #include "common.h"
  53
  54 static struct map_desc n30_iodesc[] __initdata = {
  55         /* nothing here yet */
  56 };
  57
  58 static struct s3c2410_uartcfg n30_uartcfgs[] = {
  59         /* Normal serial port */
  60         [0] = {
  61                 .hwport      = 0,
  62                 .flags       = 0,
  63                 .ucon        = 0x2c5,
  64                 .ulcon       = 0x03,
  65                 .ufcon       = 0x51,
  66         },
  67         /* IR port */
  68         [1] = {
  69                 .hwport      = 1,
  70                 .flags       = 0,
  71                 .uart_flags  = UPF_CONS_FLOW,
  72                 .ucon        = 0x2c5,
  73                 .ulcon       = 0x43,
  74                 .ufcon       = 0x51,
  75         },
  76         /* On the N30 the bluetooth controller is connected here.
  77          * On the N35 and variants the GPS receiver is connected here. */
  78         [2] = {
  79                 .hwport      = 2,
  80                 .flags       = 0,
  81                 .ucon        = 0x2c5,
  82                 .ulcon       = 0x03,
  83                 .ufcon       = 0x51,
  84         },
  85 };
  86
  87 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
  88         .vbus_pin               = S3C2410_GPG(1),
  89         .vbus_pin_inverted      = 0,
  90         .pullup_pin             = S3C2410_GPB(3),
  91 };
  92
  93 static struct gpio_keys_button n30_buttons[] = {
  94         {
  95                 .gpio           = S3C2410_GPF(0),
  96                 .code           = KEY_POWER,
  97                 .desc           = "Power",
  98                 .active_low     = 0,
  99         },
 100         {
 101                 .gpio           = S3C2410_GPG(9),
 102                 .code           = KEY_UP,
 103                 .desc           = "Thumbwheel Up",
 104                 .active_low     = 0,
 105         },
 106         {
 107                 .gpio           = S3C2410_GPG(8),
 108                 .code           = KEY_DOWN,
 109                 .desc           = "Thumbwheel Down",
 110                 .active_low     = 0,
 111         },
 112         {
 113                 .gpio           = S3C2410_GPG(7),
 114                 .code           = KEY_ENTER,
 115                 .desc           = "Thumbwheel Press",
 116                 .active_low     = 0,
 117         },
 118         {
 119                 .gpio           = S3C2410_GPF(7),
 120                 .code           = KEY_HOMEPAGE,
 121                 .desc           = "Home",
 122                 .active_low     = 0,
 123         },
 124         {
 125                 .gpio           = S3C2410_GPF(6),
 126                 .code           = KEY_CALENDAR,
 127                 .desc           = "Calendar",
 128                 .active_low     = 0,
 129         },
 130         {
 131                 .gpio           = S3C2410_GPF(5),
 132                 .code           = KEY_ADDRESSBOOK,
 133                 .desc           = "Contacts",
 134                 .active_low     = 0,
 135         },
 136         {
 137                 .gpio           = S3C2410_GPF(4),
 138                 .code           = KEY_MAIL,
 139                 .desc           = "Mail",
 140                 .active_low     = 0,
 141         },
 142 };
 143
 144 static struct gpio_keys_platform_data n30_button_data = {
 145         .buttons        = n30_buttons,
 146         .nbuttons       = ARRAY_SIZE(n30_buttons),
 147 };
 148
 149 static struct platform_device n30_button_device = {
 150         .name           = "gpio-keys",
 151         .id             = -1,
 152         .dev            = {
 153                 .platform_data  = &n30_button_data,
 154         }
 155 };
 156
 157 static struct gpio_keys_button n35_buttons[] = {
 158         {
 159                 .gpio           = S3C2410_GPF(0),
 160                 .code           = KEY_POWER,
 161                 .type           = EV_PWR,
 162                 .desc           = "Power",
 163                 .active_low     = 0,
 164                 .wakeup         = 1,
 165         },
 166         {
 167                 .gpio           = S3C2410_GPG(9),
 168                 .code           = KEY_UP,
 169                 .desc           = "Joystick Up",
 170                 .active_low     = 0,
 171         },
 172         {
 173                 .gpio           = S3C2410_GPG(8),
 174                 .code           = KEY_DOWN,
 175                 .desc           = "Joystick Down",
 176                 .active_low     = 0,
 177         },
 178         {
 179                 .gpio           = S3C2410_GPG(6),
 180                 .code           = KEY_DOWN,
 181                 .desc           = "Joystick Left",
 182                 .active_low     = 0,
 183         },
 184         {
 185                 .gpio           = S3C2410_GPG(5),
 186                 .code           = KEY_DOWN,
 187                 .desc           = "Joystick Right",
 188                 .active_low     = 0,
 189         },
 190         {
 191                 .gpio           = S3C2410_GPG(7),
 192                 .code           = KEY_ENTER,
 193                 .desc           = "Joystick Press",
 194                 .active_low     = 0,
 195         },
 196         {
 197                 .gpio           = S3C2410_GPF(7),
 198                 .code           = KEY_HOMEPAGE,
 199                 .desc           = "Home",
 200                 .active_low     = 0,
 201         },
 202         {
 203                 .gpio           = S3C2410_GPF(6),
 204                 .code           = KEY_CALENDAR,
 205                 .desc           = "Calendar",
 206                 .active_low     = 0,
 207         },
 208         {
 209                 .gpio           = S3C2410_GPF(5),
 210                 .code           = KEY_ADDRESSBOOK,
 211                 .desc           = "Contacts",
 212                 .active_low     = 0,
 213         },
 214         {
 215                 .gpio           = S3C2410_GPF(4),
 216                 .code           = KEY_MAIL,
 217                 .desc           = "Mail",
 218                 .active_low     = 0,
 219         },
 220         {
 221                 .gpio           = S3C2410_GPF(3),
 222                 .code           = SW_RADIO,
 223                 .desc           = "GPS Antenna",
 224                 .active_low     = 0,
 225         },
 226         {
 227                 .gpio           = S3C2410_GPG(2),
 228                 .code           = SW_HEADPHONE_INSERT,
 229                 .desc           = "Headphone",
 230                 .active_low     = 0,
 231         },
 232 };
 233
 234 static struct gpio_keys_platform_data n35_button_data = {
 235         .buttons        = n35_buttons,
 236         .nbuttons       = ARRAY_SIZE(n35_buttons),
 237 };
 238
 239 static struct platform_device n35_button_device = {
 240         .name           = "gpio-keys",
 241         .id             = -1,
 242         .num_resources  = 0,
 243         .dev            = {
 244                 .platform_data  = &n35_button_data,
 245         }
 246 };
 247
 248 /* This is the bluetooth LED on the device. */
 249
 250 static struct gpiod_lookup_table n30_blue_led_gpio_table = {
 251         .dev_id = "s3c24xx_led.1",
 252         .table = {
 253                 GPIO_LOOKUP("GPG", 6, NULL, GPIO_ACTIVE_HIGH),
 254                 { },
 255         },
 256 };
 257
 258 static struct s3c24xx_led_platdata n30_blue_led_pdata = {
 259         .name           = "blue_led",
 260         .def_trigger    = "",
 261 };
 262
 263 /* This is the blue LED on the device. Originally used to indicate GPS activity
 264  * by flashing. */
 265
 266 static struct gpiod_lookup_table n35_blue_led_gpio_table = {
 267         .dev_id = "s3c24xx_led.1",
 268         .table = {
 269                 GPIO_LOOKUP("GPD", 8, NULL, GPIO_ACTIVE_HIGH),
 270                 { },
 271         },
 272 };
 273
 274 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
 275         .name           = "blue_led",
 276         .def_trigger    = "",
 277 };
 278
 279 /* This LED is driven by the battery microcontroller, and is blinking
 280  * red, blinking green or solid green when the battery is low,
 281  * charging or full respectively.  By driving GPD9 low, it's possible
 282  * to force the LED to blink red, so call that warning LED.  */
 283
 284 static struct gpiod_lookup_table n30_warning_led_gpio_table = {
 285         .dev_id = "s3c24xx_led.2",
 286         .table = {
 287                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW),
 288                 { },
 289         },
 290 };
 291
 292 static struct s3c24xx_led_platdata n30_warning_led_pdata = {
 293         .name           = "warning_led",
 294         .def_trigger    = "",
 295 };
 296
 297 static struct gpiod_lookup_table n35_warning_led_gpio_table = {
 298         .dev_id = "s3c24xx_led.2",
 299         .table = {
 300                 GPIO_LOOKUP("GPD", 9, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
 301                 { },
 302         },
 303 };
 304
 305 static struct s3c24xx_led_platdata n35_warning_led_pdata = {
 306         .name           = "warning_led",
 307         .def_trigger    = "",
 308 };
 309
 310 static struct platform_device n30_blue_led = {
 311         .name           = "s3c24xx_led",
 312         .id             = 1,
 313         .dev            = {
 314                 .platform_data  = &n30_blue_led_pdata,
 315         },
 316 };
 317
 318 static struct platform_device n35_blue_led = {
 319         .name           = "s3c24xx_led",
 320         .id             = 1,
 321         .dev            = {
 322                 .platform_data  = &n35_blue_led_pdata,
 323         },
 324 };
 325
 326 static struct platform_device n30_warning_led = {
 327         .name           = "s3c24xx_led",
 328         .id             = 2,
 329         .dev            = {
 330                 .platform_data  = &n30_warning_led_pdata,
 331         },
 332 };
 333
 334 static struct platform_device n35_warning_led = {
 335         .name           = "s3c24xx_led",
 336         .id             = 2,
 337         .dev            = {
 338                 .platform_data  = &n35_warning_led_pdata,
 339         },
 340 };
 341
 342 static struct s3c2410fb_display n30_display __initdata = {
 343         .type           = S3C2410_LCDCON1_TFT,
 344         .width          = 240,
 345         .height         = 320,
 346         .pixclock       = 170000,
 347
 348         .xres           = 240,
 349         .yres           = 320,
 350         .bpp            = 16,
 351         .left_margin    = 3,
 352         .right_margin   = 40,
 353         .hsync_len      = 40,
 354         .upper_margin   = 2,
 355         .lower_margin   = 3,
 356         .vsync_len      = 2,
 357
 358         .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
 359 };
 360
 361 static struct s3c2410fb_mach_info n30_fb_info __initdata = {
 362         .displays       = &n30_display,
 363         .num_displays   = 1,
 364         .default_display = 0,
 365         .lpcsel         = 0x06,
 366 };
 367
 368 static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
 369 {
 370         switch (power_mode) {
 371         case MMC_POWER_ON:
 372         case MMC_POWER_UP:
 373                 gpio_set_value(S3C2410_GPG(4), 1);
 374                 break;
 375         case MMC_POWER_OFF:
 376         default:
 377                 gpio_set_value(S3C2410_GPG(4), 0);
 378                 break;
 379         }
 380 }
 381
 382 static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
 383         .ocr_avail      = MMC_VDD_32_33,
 384         .set_power      = n30_sdi_set_power,
 385 };
 386
 387 static struct gpiod_lookup_table n30_mci_gpio_table = {
 388         .dev_id = "s3c2410-sdi",
 389         .table = {
 390                 /* Card detect S3C2410_GPF(1) */
 391                 GPIO_LOOKUP("GPF", 1, "cd", GPIO_ACTIVE_LOW),
 392                 /* Write protect S3C2410_GPG(10) */
 393                 GPIO_LOOKUP("GPG", 10, "wp", GPIO_ACTIVE_LOW),
 394                 { },
 395         },
 396 };
 397
 398 static struct platform_device *n30_devices[] __initdata = {
 399         &s3c_device_lcd,
 400         &s3c_device_wdt,
 401         &s3c_device_i2c0,
 402         &s3c_device_iis,
 403         &s3c_device_ohci,
 404         &s3c_device_rtc,
 405         &s3c_device_usbgadget,
 406         &s3c_device_sdi,
 407         &n30_button_device,
 408         &n30_blue_led,
 409         &n30_warning_led,
 410 };
 411
 412 static struct platform_device *n35_devices[] __initdata = {
 413         &s3c_device_lcd,
 414         &s3c_device_wdt,
 415         &s3c_device_i2c0,
 416         &s3c_device_iis,
 417         &s3c_device_rtc,
 418         &s3c_device_usbgadget,
 419         &s3c_device_sdi,
 420         &n35_button_device,
 421         &n35_blue_led,
 422         &n35_warning_led,
 423 };
 424
 425 static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
 426         .flags          = 0,
 427         .slave_addr     = 0x10,
 428         .frequency      = 10*1000,
 429 };
 430
 431 /* Lots of hardcoded stuff, but it sets up the hardware in a useful
 432  * state so that we can boot Linux directly from flash. */
 433 static void __init n30_hwinit(void)
 434 {
 435         /* GPA0-11 special functions -- unknown what they do
 436          * GPA12 N30 special function -- unknown what it does
 437          *       N35/PiN output -- unknown what it does
 438          *
 439          * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
 440          * don't think it does anything useful on the N30, so I ought
 441          * to make it an output there too since it always driven to 0
 442          * as far as I can tell. */
 443         if (machine_is_n30())
 444                 __raw_writel(0x007fffff, S3C2410_GPACON);
 445         if (machine_is_n35())
 446                 __raw_writel(0x007fefff, S3C2410_GPACON);
 447         __raw_writel(0x00000000, S3C2410_GPADAT);
 448
 449         /* GPB0 TOUT0 backlight level
 450          * GPB1 output 1=backlight on
 451          * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
 452          * GPB3 output USB D+ pull up 0=disabled, 1=enabled
 453          * GPB4 N30 output -- unknown function
 454          *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
 455          * GPB5 output -- unknown function
 456          * GPB6 input -- unknown function
 457          * GPB7 output -- unknown function
 458          * GPB8 output -- probably LCD driver enable
 459          * GPB9 output -- probably LCD VSYNC driver enable
 460          * GPB10 output -- probably LCD HSYNC driver enable
 461          */
 462         __raw_writel(0x00154556, S3C2410_GPBCON);
 463         __raw_writel(0x00000750, S3C2410_GPBDAT);
 464         __raw_writel(0x00000073, S3C2410_GPBUP);
 465
 466         /* GPC0 input RS232 DCD/DSR/RI
 467          * GPC1 LCD
 468          * GPC2 output RS232 DTR?
 469          * GPC3 input RS232 DCD/DSR/RI
 470          * GPC4 LCD
 471          * GPC5 output 0=NAND write enabled, 1=NAND write protect
 472          * GPC6 input -- unknown function
 473          * GPC7 input charger status 0=charger connected
 474          *      this input can be triggered by power on the USB device
 475          *      port too, but will go back to disconnected soon after.
 476          * GPC8 N30/N35 output -- unknown function, always driven to 1
 477          *      PiN input -- unknown function, always read as 1
 478          *      Make it an input with a pull up for all models.
 479          * GPC9-15 LCD
 480          */
 481         __raw_writel(0xaaa80618, S3C2410_GPCCON);
 482         __raw_writel(0x0000014c, S3C2410_GPCDAT);
 483         __raw_writel(0x0000fef2, S3C2410_GPCUP);
 484
 485         /* GPD0 input -- unknown function
 486          * GPD1-D7 LCD
 487          * GPD8 N30 output -- unknown function
 488          *      N35/PiN output 1=GPS LED on
 489          * GPD9 output 0=power led blinks red, 1=normal power led function
 490          * GPD10 output -- unknown function
 491          * GPD11-15 LCD drivers
 492          */
 493         __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
 494         __raw_writel(0x00000601, S3C2410_GPDDAT);
 495         __raw_writel(0x0000fbfe, S3C2410_GPDUP);
 496
 497         /* GPE0-4 I2S audio bus
 498          * GPE5-10 SD/MMC bus
 499          * E11-13 outputs -- unknown function, probably power management
 500          * E14-15 I2C bus connected to the battery controller
 501          */
 502         __raw_writel(0xa56aaaaa, S3C2410_GPECON);
 503         __raw_writel(0x0000efc5, S3C2410_GPEDAT);
 504         __raw_writel(0x0000f81f, S3C2410_GPEUP);
 505
 506         /* GPF0  input 0=power button pressed
 507          * GPF1  input SD/MMC switch 0=card present
 508          * GPF2  N30 1=reset button pressed (inverted compared to the rest)
 509          *       N35/PiN 0=reset button pressed
 510          * GPF3  N30/PiN input -- unknown function
 511          *       N35 input GPS antenna position, 0=antenna closed, 1=open
 512          * GPF4  input 0=button 4 pressed
 513          * GPF5  input 0=button 3 pressed
 514          * GPF6  input 0=button 2 pressed
 515          * GPF7  input 0=button 1 pressed
 516          */
 517         __raw_writel(0x0000aaaa, S3C2410_GPFCON);
 518         __raw_writel(0x00000000, S3C2410_GPFDAT);
 519         __raw_writel(0x000000ff, S3C2410_GPFUP);
 520
 521         /* GPG0  input RS232 DCD/DSR/RI
 522          * GPG1  input 1=USB gadget port has power from a host
 523          * GPG2  N30 input -- unknown function
 524          *       N35/PiN input 0=headphones plugged in, 1=not plugged in
 525          * GPG3  N30 output -- unknown function
 526          *       N35/PiN input with unknown function
 527          * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
 528          * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
 529          *       N35/PiN input joystick right
 530          * GPG6  N30 output 0=blue led on, 1=off
 531          *       N35/PiN input joystick left
 532          * GPG7  input 0=thumbwheel pressed
 533          * GPG8  input 0=thumbwheel down
 534          * GPG9  input 0=thumbwheel up
 535          * GPG10 input SD/MMC write protect switch
 536          * GPG11 N30 input -- unknown function
 537          *       N35 output 0=GPS antenna powered, 1=not powered
 538          *       PiN output -- unknown function
 539          * GPG12-15 touch screen functions
 540          *
 541          * The pullups differ between the models, so enable all
 542          * pullups that are enabled on any of the models.
 543          */
 544         if (machine_is_n30())
 545                 __raw_writel(0xff0a956a, S3C2410_GPGCON);
 546         if (machine_is_n35())
 547                 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
 548         __raw_writel(0x0000e800, S3C2410_GPGDAT);
 549         __raw_writel(0x0000f86f, S3C2410_GPGUP);
 550
 551         /* GPH0/1/2/3 RS232 serial port
 552          * GPH4/5 IrDA serial port
 553          * GPH6/7  N30 BlueTooth serial port
 554          *         N35/PiN GPS receiver
 555          * GPH8 input -- unknown function
 556          * GPH9 CLKOUT0 HCLK -- unknown use
 557          * GPH10 CLKOUT1 FCLK -- unknown use
 558          *
 559          * The pull ups for H6/H7 are enabled on N30 but not on the
 560          * N35/PiN.  I suppose is useful for a budget model of the N30
 561          * with no bluetooth.  It doesn't hurt to have the pull ups
 562          * enabled on the N35, so leave them enabled for all models.
 563          */
 564         __raw_writel(0x0028aaaa, S3C2410_GPHCON);
 565         __raw_writel(0x000005ef, S3C2410_GPHDAT);
 566         __raw_writel(0x0000063f, S3C2410_GPHUP);
 567 }
 568
 569 static void __init n30_map_io(void)
 570 {
 571         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
 572         n30_hwinit();
 573         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
 574         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 575 }
 576
 577 static void __init n30_init_time(void)
 578 {
 579         s3c2410_init_clocks(12000000);
 580         samsung_timer_init();
 581 }
 582
 583 /* GPB3 is the line that controls the pull-up for the USB D+ line */
 584
 585 static void __init n30_init(void)
 586 {
 587         WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
 588
 589         s3c24xx_fb_set_platdata(&n30_fb_info);
 590         s3c24xx_udc_set_platdata(&n30_udc_cfg);
 591         gpiod_add_lookup_table(&n30_mci_gpio_table);
 592         s3c24xx_mci_set_platdata(&n30_mci_cfg);
 593         s3c_i2c0_set_platdata(&n30_i2ccfg);
 594
 595         /* Turn off suspend on both USB ports, and switch the
 596          * selectable USB port to USB device mode. */
 597
 598         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 599                               S3C2410_MISCCR_USBSUSPND0 |
 600                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 601
 602         if (machine_is_n30()) {
 603                 /* Turn off suspend on both USB ports, and switch the
 604                  * selectable USB port to USB device mode. */
 605                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 606                                       S3C2410_MISCCR_USBSUSPND0 |
 607                                       S3C2410_MISCCR_USBSUSPND1, 0x0);
 608
 609                 /* Disable pull-up and add GPIO tables */
 610                 s3c_gpio_setpull(S3C2410_GPG(6), S3C_GPIO_PULL_NONE);
 611                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 612                 gpiod_add_lookup_table(&n30_blue_led_gpio_table);
 613                 gpiod_add_lookup_table(&n30_warning_led_gpio_table);
 614
 615                 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
 616         }
 617
 618         if (machine_is_n35()) {
 619                 /* Turn off suspend and switch the selectable USB port
 620                  * to USB device mode.  Turn on suspend for the host
 621                  * port since it is not connected on the N35.
 622                  *
 623                  * Actually, the host port is available at some pads
 624                  * on the back of the device, so it would actually be
 625                  * possible to add a USB device inside the N35 if you
 626                  * are willing to do some hardware modifications. */
 627                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 628                                       S3C2410_MISCCR_USBSUSPND0 |
 629                                       S3C2410_MISCCR_USBSUSPND1,
 630                                       S3C2410_MISCCR_USBSUSPND0);
 631
 632                 /* Disable pull-up and add GPIO tables */
 633                 s3c_gpio_setpull(S3C2410_GPD(8), S3C_GPIO_PULL_NONE);
 634                 s3c_gpio_setpull(S3C2410_GPD(9), S3C_GPIO_PULL_NONE);
 635                 gpiod_add_lookup_table(&n35_blue_led_gpio_table);
 636                 gpiod_add_lookup_table(&n35_warning_led_gpio_table);
 637
 638                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
 639         }
 640 }
 641
 642 MACHINE_START(N30, "Acer-N30")
 643         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
 644                                 Ben Dooks <ben-linux@fluff.org>
 645         */
 646         .atag_offset    = 0x100,
 647         .init_time      = n30_init_time,
 648         .init_machine   = n30_init,
 649         .init_irq       = s3c2410_init_irq,
 650         .map_io         = n30_map_io,
 651 MACHINE_END
 652
 653 MACHINE_START(N35, "Acer-N35")
 654         /* Maintainer: Christer Weinigel <christer@weinigel.se>
 655         */
 656         .atag_offset    = 0x100,
 657         .init_time      = n30_init_time,
 658         .init_machine   = n30_init,
 659         .init_irq       = s3c2410_init_irq,
 660         .map_io         = n30_map_io,
 661 MACHINE_END