arch/mips/txx9/generic/setup.c

   1 /*
   2  * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
   3  *          and RBTX49xx patch from CELF patch archive.
   4  *
   5  * 2003-2005 (c) MontaVista Software, Inc.
   6  * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
   7  *
   8  * This file is subject to the terms and conditions of the GNU General Public
   9  * License.  See the file "COPYING" in the main directory of this archive
  10  * for more details.
  11  */
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/string.h>
  17 #include <linux/module.h>
  18 #include <linux/clk.h>
  19 #include <linux/err.h>
  20 #include <linux/gpio.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/serial_core.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/leds.h>
  25 #include <linux/sysdev.h>
  26 #include <asm/bootinfo.h>
  27 #include <asm/time.h>
  28 #include <asm/reboot.h>
  29 #include <asm/r4kcache.h>
  30 #include <asm/sections.h>
  31 #include <asm/txx9/generic.h>
  32 #include <asm/txx9/pci.h>
  33 #include <asm/txx9tmr.h>
  34 #include <asm/txx9/ndfmc.h>
  35 #include <asm/txx9/dmac.h>
  36 #ifdef CONFIG_CPU_TX49XX
  37 #include <asm/txx9/tx4938.h>
  38 #endif
  39
  40 /* EBUSC settings of TX4927, etc. */
  41 struct resource txx9_ce_res[8];
  42 static char txx9_ce_res_name[8][4];     /* "CEn" */
  43
  44 /* pcode, internal register */
  45 unsigned int txx9_pcode;
  46 char txx9_pcode_str[8];
  47 static struct resource txx9_reg_res = {
  48         .name = txx9_pcode_str,
  49         .flags = IORESOURCE_MEM,
  50 };
  51 void __init
  52 txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
  53 {
  54         int i;
  55
  56         for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
  57                 sprintf(txx9_ce_res_name[i], "CE%d", i);
  58                 txx9_ce_res[i].flags = IORESOURCE_MEM;
  59                 txx9_ce_res[i].name = txx9_ce_res_name[i];
  60         }
  61
  62         txx9_pcode = pcode;
  63         sprintf(txx9_pcode_str, "TX%x", pcode);
  64         if (base) {
  65                 txx9_reg_res.start = base & 0xfffffffffULL;
  66                 txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
  67                 request_resource(&iomem_resource, &txx9_reg_res);
  68         }
  69 }
  70
  71 /* clocks */
  72 unsigned int txx9_master_clock;
  73 unsigned int txx9_cpu_clock;
  74 unsigned int txx9_gbus_clock;
  75
  76 #ifdef CONFIG_CPU_TX39XX
  77 /* don't enable by default - see errata */
  78 int txx9_ccfg_toeon __initdata;
  79 #else
  80 int txx9_ccfg_toeon __initdata = 1;
  81 #endif
  82
  83 /* Minimum CLK support */
  84
  85 struct clk *clk_get(struct device *dev, const char *id)
  86 {
  87         if (!strcmp(id, "spi-baseclk"))
  88                 return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 4);
  89         if (!strcmp(id, "imbus_clk"))
  90                 return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
  91         return ERR_PTR(-ENOENT);
  92 }
  93 EXPORT_SYMBOL(clk_get);
  94
  95 int clk_enable(struct clk *clk)
  96 {
  97         return 0;
  98 }
  99 EXPORT_SYMBOL(clk_enable);
 100
 101 void clk_disable(struct clk *clk)
 102 {
 103 }
 104 EXPORT_SYMBOL(clk_disable);
 105
 106 unsigned long clk_get_rate(struct clk *clk)
 107 {
 108         return (unsigned long)clk;
 109 }
 110 EXPORT_SYMBOL(clk_get_rate);
 111
 112 void clk_put(struct clk *clk)
 113 {
 114 }
 115 EXPORT_SYMBOL(clk_put);
 116
 117 /* GPIO support */
 118
 119 #ifdef CONFIG_GENERIC_GPIO
 120 int gpio_to_irq(unsigned gpio)
 121 {
 122         return -EINVAL;
 123 }
 124 EXPORT_SYMBOL(gpio_to_irq);
 125
 126 int irq_to_gpio(unsigned irq)
 127 {
 128         return -EINVAL;
 129 }
 130 EXPORT_SYMBOL(irq_to_gpio);
 131 #endif
 132
 133 #define BOARD_VEC(board)        extern struct txx9_board_vec board;
 134 #include <asm/txx9/boards.h>
 135 #undef BOARD_VEC
 136
 137 struct txx9_board_vec *txx9_board_vec __initdata;
 138 static char txx9_system_type[32];
 139
 140 static struct txx9_board_vec *board_vecs[] __initdata = {
 141 #define BOARD_VEC(board)        &board,
 142 #include <asm/txx9/boards.h>
 143 #undef BOARD_VEC
 144 };
 145
 146 static struct txx9_board_vec *__init find_board_byname(const char *name)
 147 {
 148         int i;
 149
 150         /* search board_vecs table */
 151         for (i = 0; i < ARRAY_SIZE(board_vecs); i++) {
 152                 if (strstr(board_vecs[i]->system, name))
 153                         return board_vecs[i];
 154         }
 155         return NULL;
 156 }
 157
 158 static void __init prom_init_cmdline(void)
 159 {
 160         int argc;
 161         int *argv32;
 162         int i;                  /* Always ignore the "-c" at argv[0] */
 163         char builtin[CL_SIZE];
 164
 165         if (fw_arg0 >= CKSEG0 || fw_arg1 < CKSEG0) {
 166                 /*
 167                  * argc is not a valid number, or argv32 is not a valid
 168                  * pointer
 169                  */
 170                 argc = 0;
 171                 argv32 = NULL;
 172         } else {
 173                 argc = (int)fw_arg0;
 174                 argv32 = (int *)fw_arg1;
 175         }
 176
 177         /* ignore all built-in args if any f/w args given */
 178         /*
 179          * But if built-in strings was started with '+', append them
 180          * to command line args.  If built-in was started with '-',
 181          * ignore all f/w args.
 182          */
 183         builtin[0] = '\0';
 184         if (arcs_cmdline[0] == '+')
 185                 strcpy(builtin, arcs_cmdline + 1);
 186         else if (arcs_cmdline[0] == '-') {
 187                 strcpy(builtin, arcs_cmdline + 1);
 188                 argc = 0;
 189         } else if (argc <= 1)
 190                 strcpy(builtin, arcs_cmdline);
 191         arcs_cmdline[0] = '\0';
 192
 193         for (i = 1; i < argc; i++) {
 194                 char *str = (char *)(long)argv32[i];
 195                 if (i != 1)
 196                         strcat(arcs_cmdline, " ");
 197                 if (strchr(str, ' ')) {
 198                         strcat(arcs_cmdline, "\"");
 199                         strcat(arcs_cmdline, str);
 200                         strcat(arcs_cmdline, "\"");
 201                 } else
 202                         strcat(arcs_cmdline, str);
 203         }
 204         /* append saved builtin args */
 205         if (builtin[0]) {
 206                 if (arcs_cmdline[0])
 207                         strcat(arcs_cmdline, " ");
 208                 strcat(arcs_cmdline, builtin);
 209         }
 210 }
 211
 212 static int txx9_ic_disable __initdata;
 213 static int txx9_dc_disable __initdata;
 214
 215 #if defined(CONFIG_CPU_TX49XX)
 216 /* flush all cache on very early stage (before 4k_cache_init) */
 217 static void __init early_flush_dcache(void)
 218 {
 219         unsigned int conf = read_c0_config();
 220         unsigned int dc_size = 1 << (12 + ((conf & CONF_DC) >> 6));
 221         unsigned int linesz = 32;
 222         unsigned long addr, end;
 223
 224         end = INDEX_BASE + dc_size / 4;
 225         /* 4way, waybit=0 */
 226         for (addr = INDEX_BASE; addr < end; addr += linesz) {
 227                 cache_op(Index_Writeback_Inv_D, addr | 0);
 228                 cache_op(Index_Writeback_Inv_D, addr | 1);
 229                 cache_op(Index_Writeback_Inv_D, addr | 2);
 230                 cache_op(Index_Writeback_Inv_D, addr | 3);
 231         }
 232 }
 233
 234 static void __init txx9_cache_fixup(void)
 235 {
 236         unsigned int conf;
 237
 238         conf = read_c0_config();
 239         /* flush and disable */
 240         if (txx9_ic_disable) {
 241                 conf |= TX49_CONF_IC;
 242                 write_c0_config(conf);
 243         }
 244         if (txx9_dc_disable) {
 245                 early_flush_dcache();
 246                 conf |= TX49_CONF_DC;
 247                 write_c0_config(conf);
 248         }
 249
 250         /* enable cache */
 251         conf = read_c0_config();
 252         if (!txx9_ic_disable)
 253                 conf &= ~TX49_CONF_IC;
 254         if (!txx9_dc_disable)
 255                 conf &= ~TX49_CONF_DC;
 256         write_c0_config(conf);
 257
 258         if (conf & TX49_CONF_IC)
 259                 pr_info("TX49XX I-Cache disabled.\n");
 260         if (conf & TX49_CONF_DC)
 261                 pr_info("TX49XX D-Cache disabled.\n");
 262 }
 263 #elif defined(CONFIG_CPU_TX39XX)
 264 /* flush all cache on very early stage (before tx39_cache_init) */
 265 static void __init early_flush_dcache(void)
 266 {
 267         unsigned int conf = read_c0_config();
 268         unsigned int dc_size = 1 << (10 + ((conf & TX39_CONF_DCS_MASK) >>
 269                                            TX39_CONF_DCS_SHIFT));
 270         unsigned int linesz = 16;
 271         unsigned long addr, end;
 272
 273         end = INDEX_BASE + dc_size / 2;
 274         /* 2way, waybit=0 */
 275         for (addr = INDEX_BASE; addr < end; addr += linesz) {
 276                 cache_op(Index_Writeback_Inv_D, addr | 0);
 277                 cache_op(Index_Writeback_Inv_D, addr | 1);
 278         }
 279 }
 280
 281 static void __init txx9_cache_fixup(void)
 282 {
 283         unsigned int conf;
 284
 285         conf = read_c0_config();
 286         /* flush and disable */
 287         if (txx9_ic_disable) {
 288                 conf &= ~TX39_CONF_ICE;
 289                 write_c0_config(conf);
 290         }
 291         if (txx9_dc_disable) {
 292                 early_flush_dcache();
 293                 conf &= ~TX39_CONF_DCE;
 294                 write_c0_config(conf);
 295         }
 296
 297         /* enable cache */
 298         conf = read_c0_config();
 299         if (!txx9_ic_disable)
 300                 conf |= TX39_CONF_ICE;
 301         if (!txx9_dc_disable)
 302                 conf |= TX39_CONF_DCE;
 303         write_c0_config(conf);
 304
 305         if (!(conf & TX39_CONF_ICE))
 306                 pr_info("TX39XX I-Cache disabled.\n");
 307         if (!(conf & TX39_CONF_DCE))
 308                 pr_info("TX39XX D-Cache disabled.\n");
 309 }
 310 #else
 311 static inline void txx9_cache_fixup(void)
 312 {
 313 }
 314 #endif
 315
 316 static void __init preprocess_cmdline(void)
 317 {
 318         char cmdline[CL_SIZE];
 319         char *s;
 320
 321         strcpy(cmdline, arcs_cmdline);
 322         s = cmdline;
 323         arcs_cmdline[0] = '\0';
 324         while (s && *s) {
 325                 char *str = strsep(&s, " ");
 326                 if (strncmp(str, "board=", 6) == 0) {
 327                         txx9_board_vec = find_board_byname(str + 6);
 328                         continue;
 329                 } else if (strncmp(str, "masterclk=", 10) == 0) {
 330                         unsigned long val;
 331                         if (strict_strtoul(str + 10, 10, &val) == 0)
 332                                 txx9_master_clock = val;
 333                         continue;
 334                 } else if (strcmp(str, "icdisable") == 0) {
 335                         txx9_ic_disable = 1;
 336                         continue;
 337                 } else if (strcmp(str, "dcdisable") == 0) {
 338                         txx9_dc_disable = 1;
 339                         continue;
 340                 } else if (strcmp(str, "toeoff") == 0) {
 341                         txx9_ccfg_toeon = 0;
 342                         continue;
 343                 } else if (strcmp(str, "toeon") == 0) {
 344                         txx9_ccfg_toeon = 1;
 345                         continue;
 346                 }
 347                 if (arcs_cmdline[0])
 348                         strcat(arcs_cmdline, " ");
 349                 strcat(arcs_cmdline, str);
 350         }
 351
 352         txx9_cache_fixup();
 353 }
 354
 355 static void __init select_board(void)
 356 {
 357         const char *envstr;
 358
 359         /* first, determine by "board=" argument in preprocess_cmdline() */
 360         if (txx9_board_vec)
 361                 return;
 362         /* next, determine by "board" envvar */
 363         envstr = prom_getenv("board");
 364         if (envstr) {
 365                 txx9_board_vec = find_board_byname(envstr);
 366                 if (txx9_board_vec)
 367                         return;
 368         }
 369
 370         /* select "default" board */
 371 #ifdef CONFIG_CPU_TX39XX
 372         txx9_board_vec = &jmr3927_vec;
 373 #endif
 374 #ifdef CONFIG_CPU_TX49XX
 375         switch (TX4938_REV_PCODE()) {
 376 #ifdef CONFIG_TOSHIBA_RBTX4927
 377         case 0x4927:
 378                 txx9_board_vec = &rbtx4927_vec;
 379                 break;
 380         case 0x4937:
 381                 txx9_board_vec = &rbtx4937_vec;
 382                 break;
 383 #endif
 384 #ifdef CONFIG_TOSHIBA_RBTX4938
 385         case 0x4938:
 386                 txx9_board_vec = &rbtx4938_vec;
 387                 break;
 388 #endif
 389 #ifdef CONFIG_TOSHIBA_RBTX4939
 390         case 0x4939:
 391                 txx9_board_vec = &rbtx4939_vec;
 392                 break;
 393 #endif
 394         }
 395 #endif
 396 }
 397
 398 void __init prom_init(void)
 399 {
 400         prom_init_cmdline();
 401         preprocess_cmdline();
 402         select_board();
 403
 404         strcpy(txx9_system_type, txx9_board_vec->system);
 405
 406         txx9_board_vec->prom_init();
 407 }
 408
 409 void __init prom_free_prom_memory(void)
 410 {
 411         unsigned long saddr = PAGE_SIZE;
 412         unsigned long eaddr = __pa_symbol(&_text);
 413
 414         if (saddr < eaddr)
 415                 free_init_pages("prom memory", saddr, eaddr);
 416 }
 417
 418 const char *get_system_type(void)
 419 {
 420         return txx9_system_type;
 421 }
 422
 423 char * __init prom_getcmdline(void)
 424 {
 425         return &(arcs_cmdline[0]);
 426 }
 427
 428 const char *__init prom_getenv(const char *name)
 429 {
 430         const s32 *str;
 431
 432         if (fw_arg2 < CKSEG0)
 433                 return NULL;
 434
 435         str = (const s32 *)fw_arg2;
 436         /* YAMON style ("name", "value" pairs) */
 437         while (str[0] && str[1]) {
 438                 if (!strcmp((const char *)(unsigned long)str[0], name))
 439                         return (const char *)(unsigned long)str[1];
 440                 str += 2;
 441         }
 442         return NULL;
 443 }
 444
 445 static void __noreturn txx9_machine_halt(void)
 446 {
 447         local_irq_disable();
 448         clear_c0_status(ST0_IM);
 449         while (1) {
 450                 if (cpu_wait) {
 451                         (*cpu_wait)();
 452                         if (cpu_has_counter) {
 453                                 /*
 454                                  * Clear counter interrupt while it
 455                                  * breaks WAIT instruction even if
 456                                  * masked.
 457                                  */
 458                                 write_c0_compare(0);
 459                         }
 460                 }
 461         }
 462 }
 463
 464 /* Watchdog support */
 465 void __init txx9_wdt_init(unsigned long base)
 466 {
 467         struct resource res = {
 468                 .start  = base,
 469                 .end    = base + 0x100 - 1,
 470                 .flags  = IORESOURCE_MEM,
 471         };
 472         platform_device_register_simple("txx9wdt", -1, &res, 1);
 473 }
 474
 475 void txx9_wdt_now(unsigned long base)
 476 {
 477         struct txx9_tmr_reg __iomem *tmrptr =
 478                 ioremap(base, sizeof(struct txx9_tmr_reg));
 479         /* disable watch dog timer */
 480         __raw_writel(TXx9_TMWTMR_WDIS | TXx9_TMWTMR_TWC, &tmrptr->wtmr);
 481         __raw_writel(0, &tmrptr->tcr);
 482         /* kick watchdog */
 483         __raw_writel(TXx9_TMWTMR_TWIE, &tmrptr->wtmr);
 484         __raw_writel(1, &tmrptr->cpra); /* immediate */
 485         __raw_writel(TXx9_TMTCR_TCE | TXx9_TMTCR_CCDE | TXx9_TMTCR_TMODE_WDOG,
 486                      &tmrptr->tcr);
 487 }
 488
 489 /* SPI support */
 490 void __init txx9_spi_init(int busid, unsigned long base, int irq)
 491 {
 492         struct resource res[] = {
 493                 {
 494                         .start  = base,
 495                         .end    = base + 0x20 - 1,
 496                         .flags  = IORESOURCE_MEM,
 497                 }, {
 498                         .start  = irq,
 499                         .flags  = IORESOURCE_IRQ,
 500                 },
 501         };
 502         platform_device_register_simple("spi_txx9", busid,
 503                                         res, ARRAY_SIZE(res));
 504 }
 505
 506 void __init txx9_ethaddr_init(unsigned int id, unsigned char *ethaddr)
 507 {
 508         struct platform_device *pdev =
 509                 platform_device_alloc("tc35815-mac", id);
 510         if (!pdev ||
 511             platform_device_add_data(pdev, ethaddr, 6) ||
 512             platform_device_add(pdev))
 513                 platform_device_put(pdev);
 514 }
 515
 516 void __init txx9_sio_init(unsigned long baseaddr, int irq,
 517                           unsigned int line, unsigned int sclk, int nocts)
 518 {
 519 #ifdef CONFIG_SERIAL_TXX9
 520         struct uart_port req;
 521
 522         memset(&req, 0, sizeof(req));
 523         req.line = line;
 524         req.iotype = UPIO_MEM;
 525         req.membase = ioremap(baseaddr, 0x24);
 526         req.mapbase = baseaddr;
 527         req.irq = irq;
 528         if (!nocts)
 529                 req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
 530         if (sclk) {
 531                 req.flags |= UPF_MAGIC_MULTIPLIER /*USE_SCLK*/;
 532                 req.uartclk = sclk;
 533         } else
 534                 req.uartclk = TXX9_IMCLK;
 535         early_serial_txx9_setup(&req);
 536 #endif /* CONFIG_SERIAL_TXX9 */
 537 }
 538
 539 #ifdef CONFIG_EARLY_PRINTK
 540 static void __init null_prom_putchar(char c)
 541 {
 542 }
 543 void (*txx9_prom_putchar)(char c) __initdata = null_prom_putchar;
 544
 545 void __init prom_putchar(char c)
 546 {
 547         txx9_prom_putchar(c);
 548 }
 549
 550 static void __iomem *early_txx9_sio_port;
 551
 552 static void __init early_txx9_sio_putchar(char c)
 553 {
 554 #define TXX9_SICISR     0x0c
 555 #define TXX9_SITFIFO    0x1c
 556 #define TXX9_SICISR_TXALS       0x00000002
 557         while (!(__raw_readl(early_txx9_sio_port + TXX9_SICISR) &
 558                  TXX9_SICISR_TXALS))
 559                 ;
 560         __raw_writel(c, early_txx9_sio_port + TXX9_SITFIFO);
 561 }
 562
 563 void __init txx9_sio_putchar_init(unsigned long baseaddr)
 564 {
 565         early_txx9_sio_port = ioremap(baseaddr, 0x24);
 566         txx9_prom_putchar = early_txx9_sio_putchar;
 567 }
 568 #endif /* CONFIG_EARLY_PRINTK */
 569
 570 /* wrappers */
 571 void __init plat_mem_setup(void)
 572 {
 573         ioport_resource.start = 0;
 574         ioport_resource.end = ~0UL;     /* no limit */
 575         iomem_resource.start = 0;
 576         iomem_resource.end = ~0UL;      /* no limit */
 577
 578         /* fallback restart/halt routines */
 579         _machine_restart = (void (*)(char *))txx9_machine_halt;
 580         _machine_halt = txx9_machine_halt;
 581         pm_power_off = txx9_machine_halt;
 582
 583 #ifdef CONFIG_PCI
 584         pcibios_plat_setup = txx9_pcibios_setup;
 585 #endif
 586         txx9_board_vec->mem_setup();
 587 }
 588
 589 void __init arch_init_irq(void)
 590 {
 591         txx9_board_vec->irq_setup();
 592 }
 593
 594 void __init plat_time_init(void)
 595 {
 596 #ifdef CONFIG_CPU_TX49XX
 597         mips_hpt_frequency = txx9_cpu_clock / 2;
 598 #endif
 599         txx9_board_vec->time_init();
 600 }
 601
 602 static int __init _txx9_arch_init(void)
 603 {
 604         if (txx9_board_vec->arch_init)
 605                 txx9_board_vec->arch_init();
 606         return 0;
 607 }
 608 arch_initcall(_txx9_arch_init);
 609
 610 static int __init _txx9_device_init(void)
 611 {
 612         if (txx9_board_vec->device_init)
 613                 txx9_board_vec->device_init();
 614         return 0;
 615 }
 616 device_initcall(_txx9_device_init);
 617
 618 int (*txx9_irq_dispatch)(int pending);
 619 asmlinkage void plat_irq_dispatch(void)
 620 {
 621         int pending = read_c0_status() & read_c0_cause() & ST0_IM;
 622         int irq = txx9_irq_dispatch(pending);
 623
 624         if (likely(irq >= 0))
 625                 do_IRQ(irq);
 626         else
 627                 spurious_interrupt();
 628 }
 629
 630 /* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
 631 #ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
 632 static unsigned long __swizzle_addr_none(unsigned long port)
 633 {
 634         return port;
 635 }
 636 unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
 637 EXPORT_SYMBOL(__swizzle_addr_b);
 638 #endif
 639
 640 #ifdef NEEDS_TXX9_IOSWABW
 641 static u16 ioswabw_default(volatile u16 *a, u16 x)
 642 {
 643         return le16_to_cpu(x);
 644 }
 645 static u16 __mem_ioswabw_default(volatile u16 *a, u16 x)
 646 {
 647         return x;
 648 }
 649 u16 (*ioswabw)(volatile u16 *a, u16 x) = ioswabw_default;
 650 EXPORT_SYMBOL(ioswabw);
 651 u16 (*__mem_ioswabw)(volatile u16 *a, u16 x) = __mem_ioswabw_default;
 652 EXPORT_SYMBOL(__mem_ioswabw);
 653 #endif
 654
 655 void __init txx9_physmap_flash_init(int no, unsigned long addr,
 656                                     unsigned long size,
 657                                     const struct physmap_flash_data *pdata)
 658 {
 659 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 660         struct resource res = {
 661                 .start = addr,
 662                 .end = addr + size - 1,
 663                 .flags = IORESOURCE_MEM,
 664         };
 665         struct platform_device *pdev;
 666 #ifdef CONFIG_MTD_PARTITIONS
 667         static struct mtd_partition parts[2];
 668         struct physmap_flash_data pdata_part;
 669
 670         /* If this area contained boot area, make separate partition */
 671         if (pdata->nr_parts == 0 && !pdata->parts &&
 672             addr < 0x1fc00000 && addr + size > 0x1fc00000 &&
 673             !parts[0].name) {
 674                 parts[0].name = "boot";
 675                 parts[0].offset = 0x1fc00000 - addr;
 676                 parts[0].size = addr + size - 0x1fc00000;
 677                 parts[1].name = "user";
 678                 parts[1].offset = 0;
 679                 parts[1].size = 0x1fc00000 - addr;
 680                 pdata_part = *pdata;
 681                 pdata_part.nr_parts = ARRAY_SIZE(parts);
 682                 pdata_part.parts = parts;
 683                 pdata = &pdata_part;
 684         }
 685 #endif
 686         pdev = platform_device_alloc("physmap-flash", no);
 687         if (!pdev ||
 688             platform_device_add_resources(pdev, &res, 1) ||
 689             platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
 690             platform_device_add(pdev))
 691                 platform_device_put(pdev);
 692 #endif
 693 }
 694
 695 void __init txx9_ndfmc_init(unsigned long baseaddr,
 696                             const struct txx9ndfmc_platform_data *pdata)
 697 {
 698 #if defined(CONFIG_MTD_NAND_TXX9NDFMC) || \
 699         defined(CONFIG_MTD_NAND_TXX9NDFMC_MODULE)
 700         struct resource res = {
 701                 .start = baseaddr,
 702                 .end = baseaddr + 0x1000 - 1,
 703                 .flags = IORESOURCE_MEM,
 704         };
 705         struct platform_device *pdev = platform_device_alloc("txx9ndfmc", -1);
 706
 707         if (!pdev ||
 708             platform_device_add_resources(pdev, &res, 1) ||
 709             platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
 710             platform_device_add(pdev))
 711                 platform_device_put(pdev);
 712 #endif
 713 }
 714
 715 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 716 static DEFINE_SPINLOCK(txx9_iocled_lock);
 717
 718 #define TXX9_IOCLED_MAXLEDS 8
 719
 720 struct txx9_iocled_data {
 721         struct gpio_chip chip;
 722         u8 cur_val;
 723         void __iomem *mmioaddr;
 724         struct gpio_led_platform_data pdata;
 725         struct gpio_led leds[TXX9_IOCLED_MAXLEDS];
 726         char names[TXX9_IOCLED_MAXLEDS][32];
 727 };
 728
 729 static int txx9_iocled_get(struct gpio_chip *chip, unsigned int offset)
 730 {
 731         struct txx9_iocled_data *data =
 732                 container_of(chip, struct txx9_iocled_data, chip);
 733         return data->cur_val & (1 << offset);
 734 }
 735
 736 static void txx9_iocled_set(struct gpio_chip *chip, unsigned int offset,
 737                             int value)
 738 {
 739         struct txx9_iocled_data *data =
 740                 container_of(chip, struct txx9_iocled_data, chip);
 741         unsigned long flags;
 742         spin_lock_irqsave(&txx9_iocled_lock, flags);
 743         if (value)
 744                 data->cur_val |= 1 << offset;
 745         else
 746                 data->cur_val &= ~(1 << offset);
 747         writeb(data->cur_val, data->mmioaddr);
 748         mmiowb();
 749         spin_unlock_irqrestore(&txx9_iocled_lock, flags);
 750 }
 751
 752 static int txx9_iocled_dir_in(struct gpio_chip *chip, unsigned int offset)
 753 {
 754         return 0;
 755 }
 756
 757 static int txx9_iocled_dir_out(struct gpio_chip *chip, unsigned int offset,
 758                                int value)
 759 {
 760         txx9_iocled_set(chip, offset, value);
 761         return 0;
 762 }
 763
 764 void __init txx9_iocled_init(unsigned long baseaddr,
 765                              int basenum, unsigned int num, int lowactive,
 766                              const char *color, char **deftriggers)
 767 {
 768         struct txx9_iocled_data *iocled;
 769         struct platform_device *pdev;
 770         int i;
 771         static char *default_triggers[] __initdata = {
 772                 "heartbeat",
 773                 "ide-disk",
 774                 "nand-disk",
 775                 NULL,
 776         };
 777
 778         if (!deftriggers)
 779                 deftriggers = default_triggers;
 780         iocled = kzalloc(sizeof(*iocled), GFP_KERNEL);
 781         if (!iocled)
 782                 return;
 783         iocled->mmioaddr = ioremap(baseaddr, 1);
 784         if (!iocled->mmioaddr)
 785                 goto out_free;
 786         iocled->chip.get = txx9_iocled_get;
 787         iocled->chip.set = txx9_iocled_set;
 788         iocled->chip.direction_input = txx9_iocled_dir_in;
 789         iocled->chip.direction_output = txx9_iocled_dir_out;
 790         iocled->chip.label = "iocled";
 791         iocled->chip.base = basenum;
 792         iocled->chip.ngpio = num;
 793         if (gpiochip_add(&iocled->chip))
 794                 goto out_unmap;
 795         if (basenum < 0)
 796                 basenum = iocled->chip.base;
 797
 798         pdev = platform_device_alloc("leds-gpio", basenum);
 799         if (!pdev)
 800                 goto out_gpio;
 801         iocled->pdata.num_leds = num;
 802         iocled->pdata.leds = iocled->leds;
 803         for (i = 0; i < num; i++) {
 804                 struct gpio_led *led = &iocled->leds[i];
 805                 snprintf(iocled->names[i], sizeof(iocled->names[i]),
 806                          "iocled:%s:%u", color, i);
 807                 led->name = iocled->names[i];
 808                 led->gpio = basenum + i;
 809                 led->active_low = lowactive;
 810                 if (deftriggers && *deftriggers)
 811                         led->default_trigger = *deftriggers++;
 812         }
 813         pdev->dev.platform_data = &iocled->pdata;
 814         if (platform_device_add(pdev))
 815                 goto out_pdev;
 816         return;
 817 out_pdev:
 818         platform_device_put(pdev);
 819 out_gpio:
 820         gpio_remove(&iocled->chip);
 821 out_unmap:
 822         iounmap(iocled->mmioaddr);
 823 out_free:
 824         kfree(iocled);
 825 }
 826 #else /* CONFIG_LEDS_GPIO */
 827 void __init txx9_iocled_init(unsigned long baseaddr,
 828                              int basenum, unsigned int num, int lowactive,
 829                              const char *color, char **deftriggers)
 830 {
 831 }
 832 #endif /* CONFIG_LEDS_GPIO */
 833
 834 void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
 835                            const struct txx9dmac_platform_data *pdata)
 836 {
 837 #if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE)
 838         struct resource res[] = {
 839                 {
 840                         .start = baseaddr,
 841                         .end = baseaddr + 0x800 - 1,
 842                         .flags = IORESOURCE_MEM,
 843 #ifndef CONFIG_MACH_TX49XX
 844                 }, {
 845                         .start = irq,
 846                         .flags = IORESOURCE_IRQ,
 847 #endif
 848                 }
 849         };
 850 #ifdef CONFIG_MACH_TX49XX
 851         struct resource chan_res[] = {
 852                 {
 853                         .flags = IORESOURCE_IRQ,
 854                 }
 855         };
 856 #endif
 857         struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
 858         struct txx9dmac_chan_platform_data cpdata;
 859         int i;
 860
 861         if (!pdev ||
 862             platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
 863             platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
 864             platform_device_add(pdev)) {
 865                 platform_device_put(pdev);
 866                 return;
 867         }
 868         memset(&cpdata, 0, sizeof(cpdata));
 869         cpdata.dmac_dev = pdev;
 870         for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
 871 #ifdef CONFIG_MACH_TX49XX
 872                 chan_res[0].start = irq + i;
 873 #endif
 874                 pdev = platform_device_alloc("txx9dmac-chan",
 875                                              id * TXX9_DMA_MAX_NR_CHANNELS + i);
 876                 if (!pdev ||
 877 #ifdef CONFIG_MACH_TX49XX
 878                     platform_device_add_resources(pdev, chan_res,
 879                                                   ARRAY_SIZE(chan_res)) ||
 880 #endif
 881                     platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
 882                     platform_device_add(pdev))
 883                         platform_device_put(pdev);
 884         }
 885 #endif
 886 }
 887
 888 void __init txx9_aclc_init(unsigned long baseaddr, int irq,
 889                            unsigned int dmac_id,
 890                            unsigned int dma_chan_out,
 891                            unsigned int dma_chan_in)
 892 {
 893 #if defined(CONFIG_SND_SOC_TXX9ACLC) || \
 894         defined(CONFIG_SND_SOC_TXX9ACLC_MODULE)
 895         unsigned int dma_base = dmac_id * TXX9_DMA_MAX_NR_CHANNELS;
 896         struct resource res[] = {
 897                 {
 898                         .start = baseaddr,
 899                         .end = baseaddr + 0x100 - 1,
 900                         .flags = IORESOURCE_MEM,
 901                 }, {
 902                         .start = irq,
 903                         .flags = IORESOURCE_IRQ,
 904                 }, {
 905                         .name = "txx9dmac-chan",
 906                         .start = dma_base + dma_chan_out,
 907                         .flags = IORESOURCE_DMA,
 908                 }, {
 909                         .name = "txx9dmac-chan",
 910                         .start = dma_base + dma_chan_in,
 911                         .flags = IORESOURCE_DMA,
 912                 }
 913         };
 914         struct platform_device *pdev =
 915                 platform_device_alloc("txx9aclc-ac97", -1);
 916
 917         if (!pdev ||
 918             platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
 919             platform_device_add(pdev))
 920                 platform_device_put(pdev);
 921 #endif
 922 }
 923
 924 static struct sysdev_class txx9_sramc_sysdev_class;
 925
 926 struct txx9_sramc_sysdev {
 927         struct sys_device dev;
 928         struct bin_attribute bindata_attr;
 929         void __iomem *base;
 930 };
 931
 932 static ssize_t txx9_sram_read(struct kobject *kobj,
 933                               struct bin_attribute *bin_attr,
 934                               char *buf, loff_t pos, size_t size)
 935 {
 936         struct txx9_sramc_sysdev *dev = bin_attr->private;
 937         size_t ramsize = bin_attr->size;
 938
 939         if (pos >= ramsize)
 940                 return 0;
 941         if (pos + size > ramsize)
 942                 size = ramsize - pos;
 943         memcpy_fromio(buf, dev->base + pos, size);
 944         return size;
 945 }
 946
 947 static ssize_t txx9_sram_write(struct kobject *kobj,
 948                                struct bin_attribute *bin_attr,
 949                                char *buf, loff_t pos, size_t size)
 950 {
 951         struct txx9_sramc_sysdev *dev = bin_attr->private;
 952         size_t ramsize = bin_attr->size;
 953
 954         if (pos >= ramsize)
 955                 return 0;
 956         if (pos + size > ramsize)
 957                 size = ramsize - pos;
 958         memcpy_toio(dev->base + pos, buf, size);
 959         return size;
 960 }
 961
 962 void __init txx9_sramc_init(struct resource *r)
 963 {
 964         struct txx9_sramc_sysdev *dev;
 965         size_t size;
 966         int err;
 967
 968         if (!txx9_sramc_sysdev_class.name) {
 969                 txx9_sramc_sysdev_class.name = "txx9_sram";
 970                 err = sysdev_class_register(&txx9_sramc_sysdev_class);
 971                 if (err) {
 972                         txx9_sramc_sysdev_class.name = NULL;
 973                         return;
 974                 }
 975         }
 976         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 977         if (!dev)
 978                 return;
 979         size = resource_size(r);
 980         dev->base = ioremap(r->start, size);
 981         if (!dev->base)
 982                 goto exit;
 983         dev->dev.cls = &txx9_sramc_sysdev_class;
 984         dev->bindata_attr.attr.name = "bindata";
 985         dev->bindata_attr.attr.mode = S_IRUSR | S_IWUSR;
 986         dev->bindata_attr.read = txx9_sram_read;
 987         dev->bindata_attr.write = txx9_sram_write;
 988         dev->bindata_attr.size = size;
 989         dev->bindata_attr.private = dev;
 990         err = sysdev_register(&dev->dev);
 991         if (err)
 992                 goto exit;
 993         err = sysfs_create_bin_file(&dev->dev.kobj, &dev->bindata_attr);
 994         if (err) {
 995                 sysdev_unregister(&dev->dev);
 996                 goto exit;
 997         }
 998         return;
 999 exit:
1000         if (dev) {
1001                 if (dev->base)
1002                         iounmap(dev->base);
1003                 kfree(dev);
1004         }
1005 }