arch/mips/txx9/rbtx4939/setup.c

   1 /*
   2  * Toshiba RBTX4939 setup routines.
   3  * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
   4  *          and RBTX49xx patch from CELF patch archive.
   5  *
   6  * Copyright (C) 2000-2001,2005-2007 Toshiba Corporation
   7  * 2003-2005 (c) MontaVista Software, Inc. This file is licensed under the
   8  * terms of the GNU General Public License version 2. This program is
   9  * licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/leds.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/smc91x.h>
  19 #include <linux/mtd/mtd.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/mtd/map.h>
  22 #include <asm/reboot.h>
  23 #include <asm/txx9/generic.h>
  24 #include <asm/txx9/pci.h>
  25 #include <asm/txx9/rbtx4939.h>
  26
  27 static void rbtx4939_machine_restart(char *command)
  28 {
  29         local_irq_disable();
  30         writeb(1, rbtx4939_reseten_addr);
  31         writeb(1, rbtx4939_softreset_addr);
  32         while (1)
  33                 ;
  34 }
  35
  36 static void __init rbtx4939_time_init(void)
  37 {
  38         tx4939_time_init(0);
  39 }
  40
  41 #if defined(__BIG_ENDIAN) && \
  42         (defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE))
  43 #define HAVE_RBTX4939_IOSWAB
  44 #define IS_CE1_ADDR(addr) \
  45         ((((unsigned long)(addr) - IO_BASE) & 0xfff00000) == TXX9_CE(1))
  46 static u16 rbtx4939_ioswabw(volatile u16 *a, u16 x)
  47 {
  48         return IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
  49 }
  50 static u16 rbtx4939_mem_ioswabw(volatile u16 *a, u16 x)
  51 {
  52         return !IS_CE1_ADDR(a) ? x : le16_to_cpu(x);
  53 }
  54 #endif /* __BIG_ENDIAN && CONFIG_SMC91X */
  55
  56 static void __init rbtx4939_pci_setup(void)
  57 {
  58 #ifdef CONFIG_PCI
  59         int extarb = !(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCIARB);
  60         struct pci_controller *c = &txx9_primary_pcic;
  61
  62         register_pci_controller(c);
  63
  64         tx4939_report_pciclk();
  65         tx4927_pcic_setup(tx4939_pcicptr, c, extarb);
  66         if (!(__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_ATA1MODE) &&
  67             (__raw_readq(&tx4939_ccfgptr->pcfg) &
  68              (TX4939_PCFG_ET0MODE | TX4939_PCFG_ET1MODE))) {
  69                 tx4939_report_pci1clk();
  70
  71                 /* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */
  72                 c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000);
  73                 register_pci_controller(c);
  74                 tx4927_pcic_setup(tx4939_pcic1ptr, c, 0);
  75         }
  76
  77         tx4939_setup_pcierr_irq();
  78 #endif /* CONFIG_PCI */
  79 }
  80
  81 static unsigned long long default_ebccr[] __initdata = {
  82         0x01c0000000007608ULL, /* 64M ROM */
  83         0x017f000000007049ULL, /* 1M IOC */
  84         0x0180000000408608ULL, /* ISA */
  85         0,
  86 };
  87
  88 static void __init rbtx4939_ebusc_setup(void)
  89 {
  90         int i;
  91         unsigned int sp;
  92
  93         /* use user-configured speed */
  94         sp = TX4939_EBUSC_CR(0) & 0x30;
  95         default_ebccr[0] |= sp;
  96         default_ebccr[1] |= sp;
  97         default_ebccr[2] |= sp;
  98         /* initialise by myself */
  99         for (i = 0; i < ARRAY_SIZE(default_ebccr); i++) {
 100                 if (default_ebccr[i])
 101                         ____raw_writeq(default_ebccr[i],
 102                                        &tx4939_ebuscptr->cr[i]);
 103                 else
 104                         ____raw_writeq(____raw_readq(&tx4939_ebuscptr->cr[i])
 105                                        & ~8,
 106                                        &tx4939_ebuscptr->cr[i]);
 107         }
 108 }
 109
 110 static void __init rbtx4939_update_ioc_pen(void)
 111 {
 112         __u64 pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg);
 113         __u64 ccfg = ____raw_readq(&tx4939_ccfgptr->ccfg);
 114         __u8 pe1 = readb(rbtx4939_pe1_addr);
 115         __u8 pe2 = readb(rbtx4939_pe2_addr);
 116         __u8 pe3 = readb(rbtx4939_pe3_addr);
 117         if (pcfg & TX4939_PCFG_ATA0MODE)
 118                 pe1 |= RBTX4939_PE1_ATA(0);
 119         else
 120                 pe1 &= ~RBTX4939_PE1_ATA(0);
 121         if (pcfg & TX4939_PCFG_ATA1MODE) {
 122                 pe1 |= RBTX4939_PE1_ATA(1);
 123                 pe1 &= ~(RBTX4939_PE1_RMII(0) | RBTX4939_PE1_RMII(1));
 124         } else {
 125                 pe1 &= ~RBTX4939_PE1_ATA(1);
 126                 if (pcfg & TX4939_PCFG_ET0MODE)
 127                         pe1 |= RBTX4939_PE1_RMII(0);
 128                 else
 129                         pe1 &= ~RBTX4939_PE1_RMII(0);
 130                 if (pcfg & TX4939_PCFG_ET1MODE)
 131                         pe1 |= RBTX4939_PE1_RMII(1);
 132                 else
 133                         pe1 &= ~RBTX4939_PE1_RMII(1);
 134         }
 135         if (ccfg & TX4939_CCFG_PTSEL)
 136                 pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P |
 137                          RBTX4939_PE3_VP_S);
 138         else {
 139                 __u64 vmode = pcfg &
 140                         (TX4939_PCFG_VSSMODE | TX4939_PCFG_VPSMODE);
 141                 if (vmode == 0)
 142                         pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P |
 143                                  RBTX4939_PE3_VP_S);
 144                 else if (vmode == TX4939_PCFG_VPSMODE) {
 145                         pe3 |= RBTX4939_PE3_VP_P;
 146                         pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_S);
 147                 } else if (vmode == TX4939_PCFG_VSSMODE) {
 148                         pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_S;
 149                         pe3 &= ~RBTX4939_PE3_VP_P;
 150                 } else {
 151                         pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_P;
 152                         pe3 &= ~RBTX4939_PE3_VP_S;
 153                 }
 154         }
 155         if (pcfg & TX4939_PCFG_SPIMODE) {
 156                 if (pcfg & TX4939_PCFG_SIO2MODE_GPIO)
 157                         pe2 &= ~(RBTX4939_PE2_SIO2 | RBTX4939_PE2_SIO0);
 158                 else {
 159                         if (pcfg & TX4939_PCFG_SIO2MODE_SIO2) {
 160                                 pe2 |= RBTX4939_PE2_SIO2;
 161                                 pe2 &= ~RBTX4939_PE2_SIO0;
 162                         } else {
 163                                 pe2 |= RBTX4939_PE2_SIO0;
 164                                 pe2 &= ~RBTX4939_PE2_SIO2;
 165                         }
 166                 }
 167                 if (pcfg & TX4939_PCFG_SIO3MODE)
 168                         pe2 |= RBTX4939_PE2_SIO3;
 169                 else
 170                         pe2 &= ~RBTX4939_PE2_SIO3;
 171                 pe2 &= ~RBTX4939_PE2_SPI;
 172         } else {
 173                 pe2 |= RBTX4939_PE2_SPI;
 174                 pe2 &= ~(RBTX4939_PE2_SIO3 | RBTX4939_PE2_SIO2 |
 175                          RBTX4939_PE2_SIO0);
 176         }
 177         if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_GPIO)
 178                 pe2 |= RBTX4939_PE2_GPIO;
 179         else
 180                 pe2 &= ~RBTX4939_PE2_GPIO;
 181         writeb(pe1, rbtx4939_pe1_addr);
 182         writeb(pe2, rbtx4939_pe2_addr);
 183         writeb(pe3, rbtx4939_pe3_addr);
 184 }
 185
 186 #define RBTX4939_MAX_7SEGLEDS   8
 187
 188 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 189 static u8 led_val[RBTX4939_MAX_7SEGLEDS];
 190 struct rbtx4939_led_data {
 191         struct led_classdev cdev;
 192         char name[32];
 193         unsigned int num;
 194 };
 195
 196 /* Use "dot" in 7seg LEDs */
 197 static void rbtx4939_led_brightness_set(struct led_classdev *led_cdev,
 198                                         enum led_brightness value)
 199 {
 200         struct rbtx4939_led_data *led_dat =
 201                 container_of(led_cdev, struct rbtx4939_led_data, cdev);
 202         unsigned int num = led_dat->num;
 203         unsigned long flags;
 204
 205         local_irq_save(flags);
 206         led_val[num] = (led_val[num] & 0x7f) | (value ? 0x80 : 0);
 207         writeb(led_val[num], rbtx4939_7seg_addr(num / 4, num % 4));
 208         local_irq_restore(flags);
 209 }
 210
 211 static int __init rbtx4939_led_probe(struct platform_device *pdev)
 212 {
 213         struct rbtx4939_led_data *leds_data;
 214         int i;
 215         static char *default_triggers[] __initdata = {
 216                 "heartbeat",
 217                 "ide-disk",
 218                 "nand-disk",
 219         };
 220
 221         leds_data = kzalloc(sizeof(*leds_data) * RBTX4939_MAX_7SEGLEDS,
 222                             GFP_KERNEL);
 223         if (!leds_data)
 224                 return -ENOMEM;
 225         for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++) {
 226                 int rc;
 227                 struct rbtx4939_led_data *led_dat = &leds_data[i];
 228
 229                 led_dat->num = i;
 230                 led_dat->cdev.brightness_set = rbtx4939_led_brightness_set;
 231                 sprintf(led_dat->name, "rbtx4939:amber:%u", i);
 232                 led_dat->cdev.name = led_dat->name;
 233                 if (i < ARRAY_SIZE(default_triggers))
 234                         led_dat->cdev.default_trigger = default_triggers[i];
 235                 rc = led_classdev_register(&pdev->dev, &led_dat->cdev);
 236                 if (rc < 0)
 237                         return rc;
 238                 led_dat->cdev.brightness_set(&led_dat->cdev, 0);
 239         }
 240         return 0;
 241
 242 }
 243
 244 static struct platform_driver rbtx4939_led_driver = {
 245         .driver  = {
 246                 .name = "rbtx4939-led",
 247                 .owner = THIS_MODULE,
 248         },
 249 };
 250
 251 static void __init rbtx4939_led_setup(void)
 252 {
 253         platform_device_register_simple("rbtx4939-led", -1, NULL, 0);
 254         platform_driver_probe(&rbtx4939_led_driver, rbtx4939_led_probe);
 255 }
 256 #else
 257 static inline void rbtx4939_led_setup(void)
 258 {
 259 }
 260 #endif
 261
 262 static void __rbtx4939_7segled_putc(unsigned int pos, unsigned char val)
 263 {
 264 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 265         unsigned long flags;
 266         local_irq_save(flags);
 267         /* bit7: reserved for LED class */
 268         led_val[pos] = (led_val[pos] & 0x80) | (val & 0x7f);
 269         val = led_val[pos];
 270         local_irq_restore(flags);
 271 #endif
 272         writeb(val, rbtx4939_7seg_addr(pos / 4, pos % 4));
 273 }
 274
 275 static void rbtx4939_7segled_putc(unsigned int pos, unsigned char val)
 276 {
 277         /* convert from map_to_seg7() notation */
 278         val = (val & 0x88) |
 279                 ((val & 0x40) >> 6) |
 280                 ((val & 0x20) >> 4) |
 281                 ((val & 0x10) >> 2) |
 282                 ((val & 0x04) << 2) |
 283                 ((val & 0x02) << 4) |
 284                 ((val & 0x01) << 6);
 285         __rbtx4939_7segled_putc(pos, val);
 286 }
 287
 288 #if defined(CONFIG_MTD_RBTX4939) || defined(CONFIG_MTD_RBTX4939_MODULE)
 289 /* special mapping for boot rom */
 290 static unsigned long rbtx4939_flash_fixup_ofs(unsigned long ofs)
 291 {
 292         u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
 293         unsigned char shift;
 294
 295         if (bdipsw & 8) {
 296                 /* BOOT Mode: USER ROM1 / USER ROM2 */
 297                 shift = bdipsw & 3;
 298                 /* rotate A[23:22] */
 299                 return (ofs & ~0xc00000) | ((((ofs >> 22) + shift) & 3) << 22);
 300         }
 301 #ifdef __BIG_ENDIAN
 302         if (bdipsw == 0)
 303                 /* BOOT Mode: Monitor ROM */
 304                 ofs ^= 0x400000;        /* swap A[22] */
 305 #endif
 306         return ofs;
 307 }
 308
 309 static map_word rbtx4939_flash_read16(struct map_info *map, unsigned long ofs)
 310 {
 311         map_word r;
 312
 313         ofs = rbtx4939_flash_fixup_ofs(ofs);
 314         r.x[0] = __raw_readw(map->virt + ofs);
 315         return r;
 316 }
 317
 318 static void rbtx4939_flash_write16(struct map_info *map, const map_word datum,
 319                                    unsigned long ofs)
 320 {
 321         ofs = rbtx4939_flash_fixup_ofs(ofs);
 322         __raw_writew(datum.x[0], map->virt + ofs);
 323         mb();   /* see inline_map_write() in mtd/map.h */
 324 }
 325
 326 static void rbtx4939_flash_copy_from(struct map_info *map, void *to,
 327                                      unsigned long from, ssize_t len)
 328 {
 329         u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
 330         unsigned char shift;
 331         ssize_t curlen;
 332
 333         from += (unsigned long)map->virt;
 334         if (bdipsw & 8) {
 335                 /* BOOT Mode: USER ROM1 / USER ROM2 */
 336                 shift = bdipsw & 3;
 337                 while (len) {
 338                         curlen = min_t(unsigned long, len,
 339                                      0x400000 - (from & (0x400000 - 1)));
 340                         memcpy(to,
 341                                (void *)((from & ~0xc00000) |
 342                                         ((((from >> 22) + shift) & 3) << 22)),
 343                                curlen);
 344                         len -= curlen;
 345                         from += curlen;
 346                         to += curlen;
 347                 }
 348                 return;
 349         }
 350 #ifdef __BIG_ENDIAN
 351         if (bdipsw == 0) {
 352                 /* BOOT Mode: Monitor ROM */
 353                 while (len) {
 354                         curlen = min_t(unsigned long, len,
 355                                      0x400000 - (from & (0x400000 - 1)));
 356                         memcpy(to, (void *)(from ^ 0x400000), curlen);
 357                         len -= curlen;
 358                         from += curlen;
 359                         to += curlen;
 360                 }
 361                 return;
 362         }
 363 #endif
 364         memcpy(to, (void *)from, len);
 365 }
 366
 367 static void rbtx4939_flash_map_init(struct map_info *map)
 368 {
 369         map->read = rbtx4939_flash_read16;
 370         map->write = rbtx4939_flash_write16;
 371         map->copy_from = rbtx4939_flash_copy_from;
 372 }
 373
 374 static void __init rbtx4939_mtd_init(void)
 375 {
 376         static struct {
 377                 struct platform_device dev;
 378                 struct resource res;
 379                 struct rbtx4939_flash_data data;
 380         } pdevs[4];
 381         int i;
 382         static char names[4][8];
 383         static struct mtd_partition parts[4];
 384         struct rbtx4939_flash_data *boot_pdata = &pdevs[0].data;
 385         u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
 386
 387         if (bdipsw & 8) {
 388                 /* BOOT Mode: USER ROM1 / USER ROM2 */
 389                 boot_pdata->nr_parts = 4;
 390                 for (i = 0; i < boot_pdata->nr_parts; i++) {
 391                         sprintf(names[i], "img%d", 4 - i);
 392                         parts[i].name = names[i];
 393                         parts[i].size = 0x400000;
 394                         parts[i].offset = MTDPART_OFS_NXTBLK;
 395                 }
 396         } else if (bdipsw == 0) {
 397                 /* BOOT Mode: Monitor ROM */
 398                 boot_pdata->nr_parts = 2;
 399                 strcpy(names[0], "big");
 400                 strcpy(names[1], "little");
 401                 for (i = 0; i < boot_pdata->nr_parts; i++) {
 402                         parts[i].name = names[i];
 403                         parts[i].size = 0x400000;
 404                         parts[i].offset = MTDPART_OFS_NXTBLK;
 405                 }
 406         } else {
 407                 /* BOOT Mode: ROM Emulator */
 408                 boot_pdata->nr_parts = 2;
 409                 parts[0].name = "boot";
 410                 parts[0].offset = 0xc00000;
 411                 parts[0].size = 0x400000;
 412                 parts[1].name = "user";
 413                 parts[1].offset = 0;
 414                 parts[1].size = 0xc00000;
 415         }
 416         boot_pdata->parts = parts;
 417         boot_pdata->map_init = rbtx4939_flash_map_init;
 418
 419         for (i = 0; i < ARRAY_SIZE(pdevs); i++) {
 420                 struct resource *r = &pdevs[i].res;
 421                 struct platform_device *dev = &pdevs[i].dev;
 422
 423                 r->start = 0x1f000000 - i * 0x1000000;
 424                 r->end = r->start + 0x1000000 - 1;
 425                 r->flags = IORESOURCE_MEM;
 426                 pdevs[i].data.width = 2;
 427                 dev->num_resources = 1;
 428                 dev->resource = r;
 429                 dev->id = i;
 430                 dev->name = "rbtx4939-flash";
 431                 dev->dev.platform_data = &pdevs[i].data;
 432                 platform_device_register(dev);
 433         }
 434 }
 435 #else
 436 static void __init rbtx4939_mtd_init(void)
 437 {
 438 }
 439 #endif
 440
 441 static void __init rbtx4939_arch_init(void)
 442 {
 443         rbtx4939_pci_setup();
 444 }
 445
 446 static void __init rbtx4939_device_init(void)
 447 {
 448         unsigned long smc_addr = RBTX4939_ETHER_ADDR - IO_BASE;
 449         struct resource smc_res[] = {
 450                 {
 451                         .start  = smc_addr,
 452                         .end    = smc_addr + 0x10 - 1,
 453                         .flags  = IORESOURCE_MEM,
 454                 }, {
 455                         .start  = RBTX4939_IRQ_ETHER,
 456                         /* override default irq flag defined in smc91x.h */
 457                         .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
 458                 },
 459         };
 460         struct smc91x_platdata smc_pdata = {
 461                 .flags = SMC91X_USE_16BIT,
 462         };
 463         struct platform_device *pdev;
 464 #if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
 465         int i, j;
 466         unsigned char ethaddr[2][6];
 467         u8 bdipsw = readb(rbtx4939_bdipsw_addr) & 0x0f;
 468
 469         for (i = 0; i < 2; i++) {
 470                 unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10);
 471                 if (bdipsw == 0)
 472                         memcpy(ethaddr[i], (void *)area, 6);
 473                 else {
 474                         u16 buf[3];
 475                         if (bdipsw & 8)
 476                                 area -= 0x03000000;
 477                         else
 478                                 area -= 0x01000000;
 479                         for (j = 0; j < 3; j++)
 480                                 buf[j] = le16_to_cpup((u16 *)(area + j * 2));
 481                         memcpy(ethaddr[i], buf, 6);
 482                 }
 483         }
 484         tx4939_ethaddr_init(ethaddr[0], ethaddr[1]);
 485 #endif
 486         pdev = platform_device_alloc("smc91x", -1);
 487         if (!pdev ||
 488             platform_device_add_resources(pdev, smc_res, ARRAY_SIZE(smc_res)) ||
 489             platform_device_add_data(pdev, &smc_pdata, sizeof(smc_pdata)) ||
 490             platform_device_add(pdev))
 491                 platform_device_put(pdev);
 492         rbtx4939_mtd_init();
 493         /* TC58DVM82A1FT: tDH=10ns, tWP=tRP=tREADID=35ns */
 494         tx4939_ndfmc_init(10, 35,
 495                           (1 << 1) | (1 << 2),
 496                           (1 << 2)); /* ch1:8bit, ch2:16bit */
 497         rbtx4939_led_setup();
 498         tx4939_wdt_init();
 499         tx4939_ata_init();
 500         tx4939_rtc_init();
 501         tx4939_dmac_init(0, 2);
 502         tx4939_aclc_init();
 503         platform_device_register_simple("txx9aclc-generic", -1, NULL, 0);
 504         tx4939_sramc_init();
 505         tx4939_rng_init();
 506 }
 507
 508 static void __init rbtx4939_setup(void)
 509 {
 510         int i;
 511
 512         rbtx4939_ebusc_setup();
 513         /* always enable ATA0 */
 514         txx9_set64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_ATA0MODE);
 515         if (txx9_master_clock == 0)
 516                 txx9_master_clock = 20000000;
 517         tx4939_setup();
 518         rbtx4939_update_ioc_pen();
 519 #ifdef HAVE_RBTX4939_IOSWAB
 520         ioswabw = rbtx4939_ioswabw;
 521         __mem_ioswabw = rbtx4939_mem_ioswabw;
 522 #endif
 523
 524         _machine_restart = rbtx4939_machine_restart;
 525
 526         txx9_7segled_init(RBTX4939_MAX_7SEGLEDS, rbtx4939_7segled_putc);
 527         for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++)
 528                 txx9_7segled_putc(i, '-');
 529         pr_info("RBTX4939 (Rev %02x) --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
 530                 readb(rbtx4939_board_rev_addr), readb(rbtx4939_ioc_rev_addr),
 531                 readb(rbtx4939_udipsw_addr), readb(rbtx4939_bdipsw_addr));
 532
 533 #ifdef CONFIG_PCI
 534         txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
 535         txx9_board_pcibios_setup = tx4927_pcibios_setup;
 536 #else
 537         set_io_port_base(RBTX4939_ETHER_BASE);
 538 #endif
 539
 540         tx4939_sio_init(TX4939_SCLK0(txx9_master_clock), 0);
 541 }
 542
 543 struct txx9_board_vec rbtx4939_vec __initdata = {
 544         .system = "Toshiba RBTX4939",
 545         .prom_init = rbtx4939_prom_init,
 546         .mem_setup = rbtx4939_setup,
 547         .irq_setup = rbtx4939_irq_setup,
 548         .time_init = rbtx4939_time_init,
 549         .device_init = rbtx4939_device_init,
 550         .arch_init = rbtx4939_arch_init,
 551 #ifdef CONFIG_PCI
 552         .pci_map_irq = tx4939_pci_map_irq,
 553 #endif
 554 };