kernel/2.6.29.6-aldebaran-rt/arch/mips/txx9/generic/setup.c

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