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