arch/arm/mach-s3c2410/mach-n30.c

   1 /* Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
   2  * Yakumo AlphaX and Airis NC05 PDAs.
   3  *
   4  * Copyright (c) 2003-2005 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *
   7  * Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
   8  *
   9  * There is a wiki with more information about the n30 port at
  10  * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
  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/kernel.h>
  18 #include <linux/types.h>
  19
  20 #include <linux/gpio_keys.h>
  21 #include <linux/init.h>
  22 #include <linux/gpio.h>
  23 #include <linux/input.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/serial_core.h>
  27 #include <linux/timer.h>
  28 #include <linux/io.h>
  29 #include <linux/mmc/host.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/irq.h>
  33 #include <asm/mach-types.h>
  34
  35 #include <mach/fb.h>
  36 #include <mach/leds-gpio.h>
  37 #include <mach/regs-gpio.h>
  38 #include <mach/regs-lcd.h>
  39
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/irq.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <plat/iic.h>
  45 #include <plat/regs-serial.h>
  46
  47 #include <plat/clock.h>
  48 #include <plat/cpu.h>
  49 #include <plat/devs.h>
  50 #include <plat/mci.h>
  51 #include <plat/s3c2410.h>
  52 #include <plat/udc.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 void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
  88 {
  89         switch (cmd) {
  90         case S3C2410_UDC_P_ENABLE :
  91                 gpio_set_value(S3C2410_GPB(3), 1);
  92                 break;
  93         case S3C2410_UDC_P_DISABLE :
  94                 gpio_set_value(S3C2410_GPB(3), 0);
  95                 break;
  96         case S3C2410_UDC_P_RESET :
  97                 break;
  98         default:
  99                 break;
 100         }
 101 }
 102
 103 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
 104         .udc_command            = n30_udc_pullup,
 105         .vbus_pin               = S3C2410_GPG(1),
 106         .vbus_pin_inverted      = 0,
 107 };
 108
 109 static struct gpio_keys_button n30_buttons[] = {
 110         {
 111                 .gpio           = S3C2410_GPF(0),
 112                 .code           = KEY_POWER,
 113                 .desc           = "Power",
 114                 .active_low     = 0,
 115         },
 116         {
 117                 .gpio           = S3C2410_GPG(9),
 118                 .code           = KEY_UP,
 119                 .desc           = "Thumbwheel Up",
 120                 .active_low     = 0,
 121         },
 122         {
 123                 .gpio           = S3C2410_GPG(8),
 124                 .code           = KEY_DOWN,
 125                 .desc           = "Thumbwheel Down",
 126                 .active_low     = 0,
 127         },
 128         {
 129                 .gpio           = S3C2410_GPG(7),
 130                 .code           = KEY_ENTER,
 131                 .desc           = "Thumbwheel Press",
 132                 .active_low     = 0,
 133         },
 134         {
 135                 .gpio           = S3C2410_GPF(7),
 136                 .code           = KEY_HOMEPAGE,
 137                 .desc           = "Home",
 138                 .active_low     = 0,
 139         },
 140         {
 141                 .gpio           = S3C2410_GPF(6),
 142                 .code           = KEY_CALENDAR,
 143                 .desc           = "Calendar",
 144                 .active_low     = 0,
 145         },
 146         {
 147                 .gpio           = S3C2410_GPF(5),
 148                 .code           = KEY_ADDRESSBOOK,
 149                 .desc           = "Contacts",
 150                 .active_low     = 0,
 151         },
 152         {
 153                 .gpio           = S3C2410_GPF(4),
 154                 .code           = KEY_MAIL,
 155                 .desc           = "Mail",
 156                 .active_low     = 0,
 157         },
 158 };
 159
 160 static struct gpio_keys_platform_data n30_button_data = {
 161         .buttons        = n30_buttons,
 162         .nbuttons       = ARRAY_SIZE(n30_buttons),
 163 };
 164
 165 static struct platform_device n30_button_device = {
 166         .name           = "gpio-keys",
 167         .id             = -1,
 168         .dev            = {
 169                 .platform_data  = &n30_button_data,
 170         }
 171 };
 172
 173 static struct gpio_keys_button n35_buttons[] = {
 174         {
 175                 .gpio           = S3C2410_GPF(0),
 176                 .code           = KEY_POWER,
 177                 .type           = EV_PWR,
 178                 .desc           = "Power",
 179                 .active_low     = 0,
 180                 .wakeup         = 1,
 181         },
 182         {
 183                 .gpio           = S3C2410_GPG(9),
 184                 .code           = KEY_UP,
 185                 .desc           = "Joystick Up",
 186                 .active_low     = 0,
 187         },
 188         {
 189                 .gpio           = S3C2410_GPG(8),
 190                 .code           = KEY_DOWN,
 191                 .desc           = "Joystick Down",
 192                 .active_low     = 0,
 193         },
 194         {
 195                 .gpio           = S3C2410_GPG(6),
 196                 .code           = KEY_DOWN,
 197                 .desc           = "Joystick Left",
 198                 .active_low     = 0,
 199         },
 200         {
 201                 .gpio           = S3C2410_GPG(5),
 202                 .code           = KEY_DOWN,
 203                 .desc           = "Joystick Right",
 204                 .active_low     = 0,
 205         },
 206         {
 207                 .gpio           = S3C2410_GPG(7),
 208                 .code           = KEY_ENTER,
 209                 .desc           = "Joystick Press",
 210                 .active_low     = 0,
 211         },
 212         {
 213                 .gpio           = S3C2410_GPF(7),
 214                 .code           = KEY_HOMEPAGE,
 215                 .desc           = "Home",
 216                 .active_low     = 0,
 217         },
 218         {
 219                 .gpio           = S3C2410_GPF(6),
 220                 .code           = KEY_CALENDAR,
 221                 .desc           = "Calendar",
 222                 .active_low     = 0,
 223         },
 224         {
 225                 .gpio           = S3C2410_GPF(5),
 226                 .code           = KEY_ADDRESSBOOK,
 227                 .desc           = "Contacts",
 228                 .active_low     = 0,
 229         },
 230         {
 231                 .gpio           = S3C2410_GPF(4),
 232                 .code           = KEY_MAIL,
 233                 .desc           = "Mail",
 234                 .active_low     = 0,
 235         },
 236         {
 237                 .gpio           = S3C2410_GPF(3),
 238                 .code           = SW_RADIO,
 239                 .desc           = "GPS Antenna",
 240                 .active_low     = 0,
 241         },
 242         {
 243                 .gpio           = S3C2410_GPG(2),
 244                 .code           = SW_HEADPHONE_INSERT,
 245                 .desc           = "Headphone",
 246                 .active_low     = 0,
 247         },
 248 };
 249
 250 static struct gpio_keys_platform_data n35_button_data = {
 251         .buttons        = n35_buttons,
 252         .nbuttons       = ARRAY_SIZE(n35_buttons),
 253 };
 254
 255 static struct platform_device n35_button_device = {
 256         .name           = "gpio-keys",
 257         .id             = -1,
 258         .num_resources  = 0,
 259         .dev            = {
 260                 .platform_data  = &n35_button_data,
 261         }
 262 };
 263
 264 /* This is the bluetooth LED on the device. */
 265 static struct s3c24xx_led_platdata n30_blue_led_pdata = {
 266         .name           = "blue_led",
 267         .gpio           = S3C2410_GPG(6),
 268         .def_trigger    = "",
 269 };
 270
 271 /* This is the blue LED on the device. Originaly used to indicate GPS activity
 272  * by flashing. */
 273 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
 274         .name           = "blue_led",
 275         .gpio           = S3C2410_GPD(8),
 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 static struct s3c24xx_led_platdata n30_warning_led_pdata = {
 284         .name           = "warning_led",
 285         .flags          = S3C24XX_LEDF_ACTLOW,
 286         .gpio           = S3C2410_GPD(9),
 287         .def_trigger    = "",
 288 };
 289
 290 static struct s3c24xx_led_platdata n35_warning_led_pdata = {
 291         .name           = "warning_led",
 292         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
 293         .gpio           = S3C2410_GPD(9),
 294         .def_trigger    = "",
 295 };
 296
 297 static struct platform_device n30_blue_led = {
 298         .name           = "s3c24xx_led",
 299         .id             = 1,
 300         .dev            = {
 301                 .platform_data  = &n30_blue_led_pdata,
 302         },
 303 };
 304
 305 static struct platform_device n35_blue_led = {
 306         .name           = "s3c24xx_led",
 307         .id             = 1,
 308         .dev            = {
 309                 .platform_data  = &n35_blue_led_pdata,
 310         },
 311 };
 312
 313 static struct platform_device n30_warning_led = {
 314         .name           = "s3c24xx_led",
 315         .id             = 2,
 316         .dev            = {
 317                 .platform_data  = &n30_warning_led_pdata,
 318         },
 319 };
 320
 321 static struct platform_device n35_warning_led = {
 322         .name           = "s3c24xx_led",
 323         .id             = 2,
 324         .dev            = {
 325                 .platform_data  = &n35_warning_led_pdata,
 326         },
 327 };
 328
 329 static struct s3c2410fb_display n30_display __initdata = {
 330         .type           = S3C2410_LCDCON1_TFT,
 331         .width          = 240,
 332         .height         = 320,
 333         .pixclock       = 170000,
 334
 335         .xres           = 240,
 336         .yres           = 320,
 337         .bpp            = 16,
 338         .left_margin    = 3,
 339         .right_margin   = 40,
 340         .hsync_len      = 40,
 341         .upper_margin   = 2,
 342         .lower_margin   = 3,
 343         .vsync_len      = 2,
 344
 345         .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
 346 };
 347
 348 static struct s3c2410fb_mach_info n30_fb_info __initdata = {
 349         .displays       = &n30_display,
 350         .num_displays   = 1,
 351         .default_display = 0,
 352         .lpcsel         = 0x06,
 353 };
 354
 355 static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
 356 {
 357         switch (power_mode) {
 358         case MMC_POWER_ON:
 359         case MMC_POWER_UP:
 360                 gpio_set_value(S3C2410_GPG(4), 1);
 361                 break;
 362         case MMC_POWER_OFF:
 363         default:
 364                 gpio_set_value(S3C2410_GPG(4), 0);
 365                 break;
 366         }
 367 }
 368
 369 static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
 370         .gpio_detect    = S3C2410_GPF(1),
 371         .gpio_wprotect  = S3C2410_GPG(10),
 372         .ocr_avail      = MMC_VDD_32_33,
 373         .set_power      = n30_sdi_set_power,
 374 };
 375
 376 static struct platform_device *n30_devices[] __initdata = {
 377         &s3c_device_lcd,
 378         &s3c_device_wdt,
 379         &s3c_device_i2c0,
 380         &s3c_device_iis,
 381         &s3c_device_ohci,
 382         &s3c_device_rtc,
 383         &s3c_device_usbgadget,
 384         &s3c_device_sdi,
 385         &n30_button_device,
 386         &n30_blue_led,
 387         &n30_warning_led,
 388 };
 389
 390 static struct platform_device *n35_devices[] __initdata = {
 391         &s3c_device_lcd,
 392         &s3c_device_wdt,
 393         &s3c_device_i2c0,
 394         &s3c_device_iis,
 395         &s3c_device_rtc,
 396         &s3c_device_usbgadget,
 397         &s3c_device_sdi,
 398         &n35_button_device,
 399         &n35_blue_led,
 400         &n35_warning_led,
 401 };
 402
 403 static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
 404         .flags          = 0,
 405         .slave_addr     = 0x10,
 406         .frequency      = 10*1000,
 407 };
 408
 409 /* Lots of hardcoded stuff, but it sets up the hardware in a useful
 410  * state so that we can boot Linux directly from flash. */
 411 static void __init n30_hwinit(void)
 412 {
 413         /* GPA0-11 special functions -- unknown what they do
 414          * GPA12 N30 special function -- unknown what it does
 415          *       N35/PiN output -- unknown what it does
 416          *
 417          * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
 418          * don't think it does anything useful on the N30, so I ought
 419          * to make it an output there too since it always driven to 0
 420          * as far as I can tell. */
 421         if (machine_is_n30())
 422                 __raw_writel(0x007fffff, S3C2410_GPACON);
 423         if (machine_is_n35())
 424                 __raw_writel(0x007fefff, S3C2410_GPACON);
 425         __raw_writel(0x00000000, S3C2410_GPADAT);
 426
 427         /* GPB0 TOUT0 backlight level
 428          * GPB1 output 1=backlight on
 429          * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
 430          * GPB3 output USB D+ pull up 0=disabled, 1=enabled
 431          * GPB4 N30 output -- unknown function
 432          *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
 433          * GPB5 output -- unknown function
 434          * GPB6 input -- unknown function
 435          * GPB7 output -- unknown function
 436          * GPB8 output -- probably LCD driver enable
 437          * GPB9 output -- probably LCD VSYNC driver enable
 438          * GPB10 output -- probably LCD HSYNC driver enable
 439          */
 440         __raw_writel(0x00154556, S3C2410_GPBCON);
 441         __raw_writel(0x00000750, S3C2410_GPBDAT);
 442         __raw_writel(0x00000073, S3C2410_GPBUP);
 443
 444         /* GPC0 input RS232 DCD/DSR/RI
 445          * GPC1 LCD
 446          * GPC2 output RS232 DTR?
 447          * GPC3 input RS232 DCD/DSR/RI
 448          * GPC4 LCD
 449          * GPC5 output 0=NAND write enabled, 1=NAND write protect
 450          * GPC6 input -- unknown function
 451          * GPC7 input charger status 0=charger connected
 452          *      this input can be triggered by power on the USB device
 453          *      port too, but will go back to disconnected soon after.
 454          * GPC8 N30/N35 output -- unknown function, always driven to 1
 455          *      PiN input -- unknown function, always read as 1
 456          *      Make it an input with a pull up for all models.
 457          * GPC9-15 LCD
 458          */
 459         __raw_writel(0xaaa80618, S3C2410_GPCCON);
 460         __raw_writel(0x0000014c, S3C2410_GPCDAT);
 461         __raw_writel(0x0000fef2, S3C2410_GPCUP);
 462
 463         /* GPD0 input -- unknown function
 464          * GPD1-D7 LCD
 465          * GPD8 N30 output -- unknown function
 466          *      N35/PiN output 1=GPS LED on
 467          * GPD9 output 0=power led blinks red, 1=normal power led function
 468          * GPD10 output -- unknown function
 469          * GPD11-15 LCD drivers
 470          */
 471         __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
 472         __raw_writel(0x00000601, S3C2410_GPDDAT);
 473         __raw_writel(0x0000fbfe, S3C2410_GPDUP);
 474
 475         /* GPE0-4 I2S audio bus
 476          * GPE5-10 SD/MMC bus
 477          * E11-13 outputs -- unknown function, probably power management
 478          * E14-15 I2C bus connected to the battery controller
 479          */
 480         __raw_writel(0xa56aaaaa, S3C2410_GPECON);
 481         __raw_writel(0x0000efc5, S3C2410_GPEDAT);
 482         __raw_writel(0x0000f81f, S3C2410_GPEUP);
 483
 484         /* GPF0  input 0=power button pressed
 485          * GPF1  input SD/MMC switch 0=card present
 486          * GPF2  N30 1=reset button pressed (inverted compared to the rest)
 487          *       N35/PiN 0=reset button pressed
 488          * GPF3  N30/PiN input -- unknown function
 489          *       N35 input GPS antenna position, 0=antenna closed, 1=open
 490          * GPF4  input 0=button 4 pressed
 491          * GPF5  input 0=button 3 pressed
 492          * GPF6  input 0=button 2 pressed
 493          * GPF7  input 0=button 1 pressed
 494          */
 495         __raw_writel(0x0000aaaa, S3C2410_GPFCON);
 496         __raw_writel(0x00000000, S3C2410_GPFDAT);
 497         __raw_writel(0x000000ff, S3C2410_GPFUP);
 498
 499         /* GPG0  input RS232 DCD/DSR/RI
 500          * GPG1  input 1=USB gadget port has power from a host
 501          * GPG2  N30 input -- unknown function
 502          *       N35/PiN input 0=headphones plugged in, 1=not plugged in
 503          * GPG3  N30 output -- unknown function
 504          *       N35/PiN input with unknown function
 505          * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
 506          * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
 507          *       N35/PiN input joystick right
 508          * GPG6  N30 output 0=blue led on, 1=off
 509          *       N35/PiN input joystick left
 510          * GPG7  input 0=thumbwheel pressed
 511          * GPG8  input 0=thumbwheel down
 512          * GPG9  input 0=thumbwheel up
 513          * GPG10 input SD/MMC write protect switch
 514          * GPG11 N30 input -- unknown function
 515          *       N35 output 0=GPS antenna powered, 1=not powered
 516          *       PiN output -- unknown function
 517          * GPG12-15 touch screen functions
 518          *
 519          * The pullups differ between the models, so enable all
 520          * pullups that are enabled on any of the models.
 521          */
 522         if (machine_is_n30())
 523                 __raw_writel(0xff0a956a, S3C2410_GPGCON);
 524         if (machine_is_n35())
 525                 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
 526         __raw_writel(0x0000e800, S3C2410_GPGDAT);
 527         __raw_writel(0x0000f86f, S3C2410_GPGUP);
 528
 529         /* GPH0/1/2/3 RS232 serial port
 530          * GPH4/5 IrDA serial port
 531          * GPH6/7  N30 BlueTooth serial port
 532          *         N35/PiN GPS receiver
 533          * GPH8 input -- unknown function
 534          * GPH9 CLKOUT0 HCLK -- unknown use
 535          * GPH10 CLKOUT1 FCLK -- unknown use
 536          *
 537          * The pull ups for H6/H7 are enabled on N30 but not on the
 538          * N35/PiN.  I suppose is useful for a budget model of the N30
 539          * with no bluetooh.  It doesn't hurt to have the pull ups
 540          * enabled on the N35, so leave them enabled for all models.
 541          */
 542         __raw_writel(0x0028aaaa, S3C2410_GPHCON);
 543         __raw_writel(0x000005ef, S3C2410_GPHDAT);
 544         __raw_writel(0x0000063f, S3C2410_GPHUP);
 545 }
 546
 547 static void __init n30_map_io(void)
 548 {
 549         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
 550         n30_hwinit();
 551         s3c24xx_init_clocks(0);
 552         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
 553 }
 554
 555 /* GPB3 is the line that controls the pull-up for the USB D+ line */
 556
 557 static void __init n30_init(void)
 558 {
 559         WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
 560
 561         s3c24xx_fb_set_platdata(&n30_fb_info);
 562         s3c24xx_udc_set_platdata(&n30_udc_cfg);
 563         s3c24xx_mci_set_platdata(&n30_mci_cfg);
 564         s3c_i2c0_set_platdata(&n30_i2ccfg);
 565
 566         /* Turn off suspend on both USB ports, and switch the
 567          * selectable USB port to USB device mode. */
 568
 569         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 570                               S3C2410_MISCCR_USBSUSPND0 |
 571                               S3C2410_MISCCR_USBSUSPND1, 0x0);
 572
 573         if (machine_is_n30()) {
 574                 /* Turn off suspend on both USB ports, and switch the
 575                  * selectable USB port to USB device mode. */
 576                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 577                                       S3C2410_MISCCR_USBSUSPND0 |
 578                                       S3C2410_MISCCR_USBSUSPND1, 0x0);
 579
 580                 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
 581         }
 582
 583         if (machine_is_n35()) {
 584                 /* Turn off suspend and switch the selectable USB port
 585                  * to USB device mode.  Turn on suspend for the host
 586                  * port since it is not connected on the N35.
 587                  *
 588                  * Actually, the host port is available at some pads
 589                  * on the back of the device, so it would actually be
 590                  * possible to add a USB device inside the N35 if you
 591                  * are willing to do some hardware modifications. */
 592                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 593                                       S3C2410_MISCCR_USBSUSPND0 |
 594                                       S3C2410_MISCCR_USBSUSPND1,
 595                                       S3C2410_MISCCR_USBSUSPND0);
 596
 597                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
 598         }
 599
 600         WARN_ON(gpio_request(S3C2410_GPB(3), "udc pup"));
 601         gpio_direction_output(S3C2410_GPB(3), 0);
 602 }
 603
 604 MACHINE_START(N30, "Acer-N30")
 605         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
 606                                 Ben Dooks <ben-linux@fluff.org>
 607         */
 608         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 609         .timer          = &s3c24xx_timer,
 610         .init_machine   = n30_init,
 611         .init_irq       = s3c24xx_init_irq,
 612         .map_io         = n30_map_io,
 613 MACHINE_END
 614
 615 MACHINE_START(N35, "Acer-N35")
 616         /* Maintainer: Christer Weinigel <christer@weinigel.se>
 617         */
 618         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 619         .timer          = &s3c24xx_timer,
 620         .init_machine   = n30_init,
 621         .init_irq       = s3c24xx_init_irq,
 622         .map_io         = n30_map_io,
 623 MACHINE_END