arch/arm/mach-s3c24xx/mach-bast.c

   1 /* linux/arch/arm/mach-s3c2410/mach-bast.c
   2  *
   3  * Copyright 2003-2008 Simtec Electronics
   4  *   Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * http://www.simtec.co.uk/products/EB2410ITX/
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/types.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/list.h>
  17 #include <linux/timer.h>
  18 #include <linux/init.h>
  19 #include <linux/gpio.h>
  20 #include <linux/syscore_ops.h>
  21 #include <linux/serial_core.h>
  22 #include <linux/serial_s3c.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/dm9000.h>
  25 #include <linux/ata_platform.h>
  26 #include <linux/i2c.h>
  27 #include <linux/io.h>
  28 #include <linux/serial_8250.h>
  29
  30 #include <linux/mtd/mtd.h>
  31 #include <linux/mtd/nand.h>
  32 #include <linux/mtd/nand_ecc.h>
  33 #include <linux/mtd/partitions.h>
  34
  35 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
  36 #include <linux/platform_data/hwmon-s3c.h>
  37 #include <linux/platform_data/i2c-s3c2410.h>
  38 #include <linux/platform_data/mtd-nand-s3c2410.h>
  39
  40 #include <net/ax88796.h>
  41
  42 #include <asm/irq.h>
  43 #include <asm/mach/arch.h>
  44 #include <asm/mach/map.h>
  45 #include <asm/mach/irq.h>
  46 #include <asm/mach-types.h>
  47
  48 #include <mach/fb.h>
  49 #include <mach/hardware.h>
  50 #include <mach/regs-gpio.h>
  51 #include <mach/regs-lcd.h>
  52 #include <mach/gpio-samsung.h>
  53
  54 #include <plat/cpu.h>
  55 #include <plat/cpu-freq.h>
  56 #include <plat/devs.h>
  57 #include <plat/gpio-cfg.h>
  58 #include <plat/samsung-time.h>
  59
  60 #include "bast.h"
  61 #include "common.h"
  62 #include "simtec.h"
  63
  64 #define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
  65
  66 /* macros for virtual address mods for the io space entries */
  67 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  68 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  69 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  70 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  71
  72 /* macros to modify the physical addresses for io space */
  73
  74 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  75 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  76 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  77 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  78
  79 static struct map_desc bast_iodesc[] __initdata = {
  80   /* ISA IO areas */
  81   {
  82           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  83           .pfn          = PA_CS2(BAST_PA_ISAIO),
  84           .length       = SZ_16M,
  85           .type         = MT_DEVICE,
  86   }, {
  87           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  88           .pfn          = PA_CS3(BAST_PA_ISAIO),
  89           .length       = SZ_16M,
  90           .type         = MT_DEVICE,
  91   },
  92   /* bast CPLD control registers, and external interrupt controls */
  93   {
  94           .virtual      = (u32)BAST_VA_CTRL1,
  95           .pfn          = __phys_to_pfn(BAST_PA_CTRL1),
  96           .length       = SZ_1M,
  97           .type         = MT_DEVICE,
  98   }, {
  99           .virtual      = (u32)BAST_VA_CTRL2,
 100           .pfn          = __phys_to_pfn(BAST_PA_CTRL2),
 101           .length       = SZ_1M,
 102           .type         = MT_DEVICE,
 103   }, {
 104           .virtual      = (u32)BAST_VA_CTRL3,
 105           .pfn          = __phys_to_pfn(BAST_PA_CTRL3),
 106           .length       = SZ_1M,
 107           .type         = MT_DEVICE,
 108   }, {
 109           .virtual      = (u32)BAST_VA_CTRL4,
 110           .pfn          = __phys_to_pfn(BAST_PA_CTRL4),
 111           .length       = SZ_1M,
 112           .type         = MT_DEVICE,
 113   },
 114   /* PC104 IRQ mux */
 115   {
 116           .virtual      = (u32)BAST_VA_PC104_IRQREQ,
 117           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
 118           .length       = SZ_1M,
 119           .type         = MT_DEVICE,
 120   }, {
 121           .virtual      = (u32)BAST_VA_PC104_IRQRAW,
 122           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
 123           .length       = SZ_1M,
 124           .type         = MT_DEVICE,
 125   }, {
 126           .virtual      = (u32)BAST_VA_PC104_IRQMASK,
 127           .pfn          = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
 128           .length       = SZ_1M,
 129           .type         = MT_DEVICE,
 130   },
 131
 132   /* peripheral space... one for each of fast/slow/byte/16bit */
 133   /* note, ide is only decoded in word space, even though some registers
 134    * are only 8bit */
 135
 136   /* slow, byte */
 137   { VA_C2(BAST_VA_ISAIO),   PA_CS2(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
 138   { VA_C2(BAST_VA_ISAMEM),  PA_CS2(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
 139   { VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
 140
 141   /* slow, word */
 142   { VA_C3(BAST_VA_ISAIO),   PA_CS3(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
 143   { VA_C3(BAST_VA_ISAMEM),  PA_CS3(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
 144   { VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
 145
 146   /* fast, byte */
 147   { VA_C4(BAST_VA_ISAIO),   PA_CS4(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
 148   { VA_C4(BAST_VA_ISAMEM),  PA_CS4(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
 149   { VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
 150
 151   /* fast, word */
 152   { VA_C5(BAST_VA_ISAIO),   PA_CS5(BAST_PA_ISAIO),    SZ_16M, MT_DEVICE },
 153   { VA_C5(BAST_VA_ISAMEM),  PA_CS5(BAST_PA_ISAMEM),   SZ_16M, MT_DEVICE },
 154   { VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO),  SZ_1M,  MT_DEVICE },
 155 };
 156
 157 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 158 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 159 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 160
 161 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
 162         [0] = {
 163                 .hwport      = 0,
 164                 .flags       = 0,
 165                 .ucon        = UCON,
 166                 .ulcon       = ULCON,
 167                 .ufcon       = UFCON,
 168         },
 169         [1] = {
 170                 .hwport      = 1,
 171                 .flags       = 0,
 172                 .ucon        = UCON,
 173                 .ulcon       = ULCON,
 174                 .ufcon       = UFCON,
 175         },
 176         /* port 2 is not actually used */
 177         [2] = {
 178                 .hwport      = 2,
 179                 .flags       = 0,
 180                 .ucon        = UCON,
 181                 .ulcon       = ULCON,
 182                 .ufcon       = UFCON,
 183         }
 184 };
 185
 186 /* NAND Flash on BAST board */
 187
 188 #ifdef CONFIG_PM
 189 static int bast_pm_suspend(void)
 190 {
 191         /* ensure that an nRESET is not generated on resume. */
 192         gpio_direction_output(S3C2410_GPA(21), 1);
 193         return 0;
 194 }
 195
 196 static void bast_pm_resume(void)
 197 {
 198         s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
 199 }
 200
 201 #else
 202 #define bast_pm_suspend NULL
 203 #define bast_pm_resume NULL
 204 #endif
 205
 206 static struct syscore_ops bast_pm_syscore_ops = {
 207         .suspend        = bast_pm_suspend,
 208         .resume         = bast_pm_resume,
 209 };
 210
 211 static int smartmedia_map[] = { 0 };
 212 static int chip0_map[] = { 1 };
 213 static int chip1_map[] = { 2 };
 214 static int chip2_map[] = { 3 };
 215
 216 static struct mtd_partition __initdata bast_default_nand_part[] = {
 217         [0] = {
 218                 .name   = "Boot Agent",
 219                 .size   = SZ_16K,
 220                 .offset = 0,
 221         },
 222         [1] = {
 223                 .name   = "/boot",
 224                 .size   = SZ_4M - SZ_16K,
 225                 .offset = SZ_16K,
 226         },
 227         [2] = {
 228                 .name   = "user",
 229                 .offset = SZ_4M,
 230                 .size   = MTDPART_SIZ_FULL,
 231         }
 232 };
 233
 234 /* the bast has 4 selectable slots for nand-flash, the three
 235  * on-board chip areas, as well as the external SmartMedia
 236  * slot.
 237  *
 238  * Note, there is no current hot-plug support for the SmartMedia
 239  * socket.
 240 */
 241
 242 static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
 243         [0] = {
 244                 .name           = "SmartMedia",
 245                 .nr_chips       = 1,
 246                 .nr_map         = smartmedia_map,
 247                 .options        = NAND_SCAN_SILENT_NODEV,
 248                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
 249                 .partitions     = bast_default_nand_part,
 250         },
 251         [1] = {
 252                 .name           = "chip0",
 253                 .nr_chips       = 1,
 254                 .nr_map         = chip0_map,
 255                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
 256                 .partitions     = bast_default_nand_part,
 257         },
 258         [2] = {
 259                 .name           = "chip1",
 260                 .nr_chips       = 1,
 261                 .nr_map         = chip1_map,
 262                 .options        = NAND_SCAN_SILENT_NODEV,
 263                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
 264                 .partitions     = bast_default_nand_part,
 265         },
 266         [3] = {
 267                 .name           = "chip2",
 268                 .nr_chips       = 1,
 269                 .nr_map         = chip2_map,
 270                 .options        = NAND_SCAN_SILENT_NODEV,
 271                 .nr_partitions  = ARRAY_SIZE(bast_default_nand_part),
 272                 .partitions     = bast_default_nand_part,
 273         }
 274 };
 275
 276 static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
 277 {
 278         unsigned int tmp;
 279
 280         slot = set->nr_map[slot] & 3;
 281
 282         pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
 283                  slot, set, set->nr_map);
 284
 285         tmp = __raw_readb(BAST_VA_CTRL2);
 286         tmp &= BAST_CPLD_CTLR2_IDERST;
 287         tmp |= slot;
 288         tmp |= BAST_CPLD_CTRL2_WNAND;
 289
 290         pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
 291
 292         __raw_writeb(tmp, BAST_VA_CTRL2);
 293 }
 294
 295 static struct s3c2410_platform_nand __initdata bast_nand_info = {
 296         .tacls          = 30,
 297         .twrph0         = 60,
 298         .twrph1         = 60,
 299         .nr_sets        = ARRAY_SIZE(bast_nand_sets),
 300         .sets           = bast_nand_sets,
 301         .select_chip    = bast_nand_select,
 302 };
 303
 304 /* DM9000 */
 305
 306 static struct resource bast_dm9k_resource[] = {
 307         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000, 4),
 308         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000 + 0x40, 0x40),
 309         [2] = DEFINE_RES_NAMED(BAST_IRQ_DM9000 , 1, NULL, IORESOURCE_IRQ \
 310                                         | IORESOURCE_IRQ_HIGHLEVEL),
 311 };
 312
 313 /* for the moment we limit ourselves to 16bit IO until some
 314  * better IO routines can be written and tested
 315 */
 316
 317 static struct dm9000_plat_data bast_dm9k_platdata = {
 318         .flags          = DM9000_PLATF_16BITONLY,
 319 };
 320
 321 static struct platform_device bast_device_dm9k = {
 322         .name           = "dm9000",
 323         .id             = 0,
 324         .num_resources  = ARRAY_SIZE(bast_dm9k_resource),
 325         .resource       = bast_dm9k_resource,
 326         .dev            = {
 327                 .platform_data = &bast_dm9k_platdata,
 328         }
 329 };
 330
 331 /* serial devices */
 332
 333 #define SERIAL_BASE  (S3C2410_CS2 + BAST_PA_SUPERIO)
 334 #define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
 335 #define SERIAL_CLK   (1843200)
 336
 337 static struct plat_serial8250_port bast_sio_data[] = {
 338         [0] = {
 339                 .mapbase        = SERIAL_BASE + 0x2f8,
 340                 .irq            = BAST_IRQ_PCSERIAL1,
 341                 .flags          = SERIAL_FLAGS,
 342                 .iotype         = UPIO_MEM,
 343                 .regshift       = 0,
 344                 .uartclk        = SERIAL_CLK,
 345         },
 346         [1] = {
 347                 .mapbase        = SERIAL_BASE + 0x3f8,
 348                 .irq            = BAST_IRQ_PCSERIAL2,
 349                 .flags          = SERIAL_FLAGS,
 350                 .iotype         = UPIO_MEM,
 351                 .regshift       = 0,
 352                 .uartclk        = SERIAL_CLK,
 353         },
 354         { }
 355 };
 356
 357 static struct platform_device bast_sio = {
 358         .name                   = "serial8250",
 359         .id                     = PLAT8250_DEV_PLATFORM,
 360         .dev                    = {
 361                 .platform_data  = &bast_sio_data,
 362         },
 363 };
 364
 365 /* we have devices on the bus which cannot work much over the
 366  * standard 100KHz i2c bus frequency
 367 */
 368
 369 static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
 370         .flags          = 0,
 371         .slave_addr     = 0x10,
 372         .frequency      = 100*1000,
 373 };
 374
 375 /* Asix AX88796 10/100 ethernet controller */
 376
 377 static struct ax_plat_data bast_asix_platdata = {
 378         .flags          = AXFLG_MAC_FROMDEV,
 379         .wordlength     = 2,
 380         .dcr_val        = 0x48,
 381         .rcr_val        = 0x40,
 382 };
 383
 384 static struct resource bast_asix_resource[] = {
 385         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET, 0x18 * 0x20),
 386         [1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20), 1),
 387         [2] = DEFINE_RES_IRQ(BAST_IRQ_ASIX),
 388 };
 389
 390 static struct platform_device bast_device_asix = {
 391         .name           = "ax88796",
 392         .id             = 0,
 393         .num_resources  = ARRAY_SIZE(bast_asix_resource),
 394         .resource       = bast_asix_resource,
 395         .dev            = {
 396                 .platform_data = &bast_asix_platdata
 397         }
 398 };
 399
 400 /* Asix AX88796 10/100 ethernet controller parallel port */
 401
 402 static struct resource bast_asixpp_resource[] = {
 403         [0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20), \
 404                                         0x30 * 0x20),
 405 };
 406
 407 static struct platform_device bast_device_axpp = {
 408         .name           = "ax88796-pp",
 409         .id             = 0,
 410         .num_resources  = ARRAY_SIZE(bast_asixpp_resource),
 411         .resource       = bast_asixpp_resource,
 412 };
 413
 414 /* LCD/VGA controller */
 415
 416 static struct s3c2410fb_display __initdata bast_lcd_info[] = {
 417         {
 418                 .type           = S3C2410_LCDCON1_TFT,
 419                 .width          = 640,
 420                 .height         = 480,
 421
 422                 .pixclock       = 33333,
 423                 .xres           = 640,
 424                 .yres           = 480,
 425                 .bpp            = 4,
 426                 .left_margin    = 40,
 427                 .right_margin   = 20,
 428                 .hsync_len      = 88,
 429                 .upper_margin   = 30,
 430                 .lower_margin   = 32,
 431                 .vsync_len      = 3,
 432
 433                 .lcdcon5        = 0x00014b02,
 434         },
 435         {
 436                 .type           = S3C2410_LCDCON1_TFT,
 437                 .width          = 640,
 438                 .height         = 480,
 439
 440                 .pixclock       = 33333,
 441                 .xres           = 640,
 442                 .yres           = 480,
 443                 .bpp            = 8,
 444                 .left_margin    = 40,
 445                 .right_margin   = 20,
 446                 .hsync_len      = 88,
 447                 .upper_margin   = 30,
 448                 .lower_margin   = 32,
 449                 .vsync_len      = 3,
 450
 451                 .lcdcon5        = 0x00014b02,
 452         },
 453         {
 454                 .type           = S3C2410_LCDCON1_TFT,
 455                 .width          = 640,
 456                 .height         = 480,
 457
 458                 .pixclock       = 33333,
 459                 .xres           = 640,
 460                 .yres           = 480,
 461                 .bpp            = 16,
 462                 .left_margin    = 40,
 463                 .right_margin   = 20,
 464                 .hsync_len      = 88,
 465                 .upper_margin   = 30,
 466                 .lower_margin   = 32,
 467                 .vsync_len      = 3,
 468
 469                 .lcdcon5        = 0x00014b02,
 470         },
 471 };
 472
 473 /* LCD/VGA controller */
 474
 475 static struct s3c2410fb_mach_info __initdata bast_fb_info = {
 476
 477         .displays = bast_lcd_info,
 478         .num_displays = ARRAY_SIZE(bast_lcd_info),
 479         .default_display = 1,
 480 };
 481
 482 /* I2C devices fitted. */
 483
 484 static struct i2c_board_info bast_i2c_devs[] __initdata = {
 485         {
 486                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 487         }, {
 488                 I2C_BOARD_INFO("simtec-pmu", 0x6b),
 489         }, {
 490                 I2C_BOARD_INFO("ch7013", 0x75),
 491         },
 492 };
 493
 494 static struct s3c_hwmon_pdata bast_hwmon_info = {
 495         /* LCD contrast (0-6.6V) */
 496         .in[0] = &(struct s3c_hwmon_chcfg) {
 497                 .name           = "lcd-contrast",
 498                 .mult           = 3300,
 499                 .div            = 512,
 500         },
 501         /* LED current feedback */
 502         .in[1] = &(struct s3c_hwmon_chcfg) {
 503                 .name           = "led-feedback",
 504                 .mult           = 3300,
 505                 .div            = 1024,
 506         },
 507         /* LCD feedback (0-6.6V) */
 508         .in[2] = &(struct s3c_hwmon_chcfg) {
 509                 .name           = "lcd-feedback",
 510                 .mult           = 3300,
 511                 .div            = 512,
 512         },
 513         /* Vcore (1.8-2.0V), Vref 3.3V  */
 514         .in[3] = &(struct s3c_hwmon_chcfg) {
 515                 .name           = "vcore",
 516                 .mult           = 3300,
 517                 .div            = 1024,
 518         },
 519 };
 520
 521 /* Standard BAST devices */
 522 // cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
 523
 524 static struct platform_device *bast_devices[] __initdata = {
 525         &s3c2410_device_dclk,
 526         &s3c_device_ohci,
 527         &s3c_device_lcd,
 528         &s3c_device_wdt,
 529         &s3c_device_i2c0,
 530         &s3c_device_rtc,
 531         &s3c_device_nand,
 532         &s3c_device_adc,
 533         &s3c_device_hwmon,
 534         &bast_device_dm9k,
 535         &bast_device_asix,
 536         &bast_device_axpp,
 537         &bast_sio,
 538 };
 539
 540 static struct s3c_cpufreq_board __initdata bast_cpufreq = {
 541         .refresh        = 7800, /* 7.8usec */
 542         .auto_io        = 1,
 543         .need_io        = 1,
 544 };
 545
 546 static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
 547         .have_mic       = 1,
 548         .have_lout      = 1,
 549 };
 550
 551 static void __init bast_map_io(void)
 552 {
 553         s3c_hwmon_set_platdata(&bast_hwmon_info);
 554
 555         s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
 556         s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
 557         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 558 }
 559
 560 static void __init bast_init_time(void)
 561 {
 562         s3c2410_init_clocks(12000000);
 563         samsung_timer_init();
 564 }
 565
 566 static void __init bast_init(void)
 567 {
 568         register_syscore_ops(&bast_pm_syscore_ops);
 569
 570         s3c_i2c0_set_platdata(&bast_i2c_info);
 571         s3c_nand_set_platdata(&bast_nand_info);
 572         s3c24xx_fb_set_platdata(&bast_fb_info);
 573         platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
 574
 575         i2c_register_board_info(0, bast_i2c_devs,
 576                                 ARRAY_SIZE(bast_i2c_devs));
 577
 578         usb_simtec_init();
 579         nor_simtec_init();
 580         simtec_audio_add(NULL, true, &bast_audio);
 581
 582         WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
 583
 584         s3c_cpufreq_setboard(&bast_cpufreq);
 585 }
 586
 587 MACHINE_START(BAST, "Simtec-BAST")
 588         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 589         .atag_offset    = 0x100,
 590         .map_io         = bast_map_io,
 591         .init_irq       = s3c2410_init_irq,
 592         .init_machine   = bast_init,
 593         .init_time      = bast_init_time,
 594 MACHINE_END