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