arch/arm/mach-s3c2440/mach-anubis.c

   1 /* linux/arch/arm/mach-s3c2440/mach-anubis.c
   2  *
   3  * Copyright (c) 2003-2005,2008 Simtec Electronics
   4  *      http://armlinux.simtec.co.uk/
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10 */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/types.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/list.h>
  16 #include <linux/timer.h>
  17 #include <linux/init.h>
  18 #include <linux/serial_core.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/ata_platform.h>
  21 #include <linux/i2c.h>
  22 #include <linux/io.h>
  23 #include <linux/sm501.h>
  24 #include <linux/sm501-regs.h>
  25
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28 #include <asm/mach/irq.h>
  29
  30 #include <mach/anubis-map.h>
  31 #include <mach/anubis-irq.h>
  32 #include <mach/anubis-cpld.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/irq.h>
  36 #include <asm/mach-types.h>
  37
  38 #include <plat/regs-serial.h>
  39 #include <mach/regs-gpio.h>
  40 #include <mach/regs-mem.h>
  41 #include <mach/regs-lcd.h>
  42 #include <plat/nand.h>
  43 #include <plat/iic.h>
  44
  45 #include <linux/mtd/mtd.h>
  46 #include <linux/mtd/nand.h>
  47 #include <linux/mtd/nand_ecc.h>
  48 #include <linux/mtd/partitions.h>
  49
  50 #include <net/ax88796.h>
  51
  52 #include <plat/clock.h>
  53 #include <plat/devs.h>
  54 #include <plat/cpu.h>
  55
  56 #define COPYRIGHT ", (c) 2005 Simtec Electronics"
  57
  58 static struct map_desc anubis_iodesc[] __initdata = {
  59   /* ISA IO areas */
  60
  61   {
  62         .virtual        = (u32)S3C24XX_VA_ISA_BYTE,
  63         .pfn            = __phys_to_pfn(0x0),
  64         .length         = SZ_4M,
  65         .type           = MT_DEVICE,
  66   }, {
  67         .virtual        = (u32)S3C24XX_VA_ISA_WORD,
  68         .pfn            = __phys_to_pfn(0x0),
  69         .length         = SZ_4M,
  70         .type           = MT_DEVICE,
  71   },
  72
  73   /* we could possibly compress the next set down into a set of smaller tables
  74    * pagetables, but that would mean using an L2 section, and it still means
  75    * we cannot actually feed the same register to an LDR due to 16K spacing
  76    */
  77
  78   /* CPLD control registers */
  79
  80   {
  81         .virtual        = (u32)ANUBIS_VA_CTRL1,
  82         .pfn            = __phys_to_pfn(ANUBIS_PA_CTRL1),
  83         .length         = SZ_4K,
  84         .type           = MT_DEVICE,
  85   }, {
  86         .virtual        = (u32)ANUBIS_VA_IDREG,
  87         .pfn            = __phys_to_pfn(ANUBIS_PA_IDREG),
  88         .length         = SZ_4K,
  89         .type           = MT_DEVICE,
  90   },
  91 };
  92
  93 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  94 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  95 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  96
  97 static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = {
  98         [0] = {
  99                 .name           = "uclk",
 100                 .divisor        = 1,
 101                 .min_baud       = 0,
 102                 .max_baud       = 0,
 103         },
 104         [1] = {
 105                 .name           = "pclk",
 106                 .divisor        = 1,
 107                 .min_baud       = 0,
 108                 .max_baud       = 0,
 109         }
 110 };
 111
 112
 113 static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
 114         [0] = {
 115                 .hwport      = 0,
 116                 .flags       = 0,
 117                 .ucon        = UCON,
 118                 .ulcon       = ULCON,
 119                 .ufcon       = UFCON,
 120                 .clocks      = anubis_serial_clocks,
 121                 .clocks_size = ARRAY_SIZE(anubis_serial_clocks),
 122         },
 123         [1] = {
 124                 .hwport      = 2,
 125                 .flags       = 0,
 126                 .ucon        = UCON,
 127                 .ulcon       = ULCON,
 128                 .ufcon       = UFCON,
 129                 .clocks      = anubis_serial_clocks,
 130                 .clocks_size = ARRAY_SIZE(anubis_serial_clocks),
 131         },
 132 };
 133
 134 /* NAND Flash on Anubis board */
 135
 136 static int external_map[]   = { 2 };
 137 static int chip0_map[]      = { 0 };
 138 static int chip1_map[]      = { 1 };
 139
 140 static struct mtd_partition anubis_default_nand_part[] = {
 141         [0] = {
 142                 .name   = "Boot Agent",
 143                 .size   = SZ_16K,
 144                 .offset = 0,
 145         },
 146         [1] = {
 147                 .name   = "/boot",
 148                 .size   = SZ_4M - SZ_16K,
 149                 .offset = SZ_16K,
 150         },
 151         [2] = {
 152                 .name   = "user1",
 153                 .offset = SZ_4M,
 154                 .size   = SZ_32M - SZ_4M,
 155         },
 156         [3] = {
 157                 .name   = "user2",
 158                 .offset = SZ_32M,
 159                 .size   = MTDPART_SIZ_FULL,
 160         }
 161 };
 162
 163 static struct mtd_partition anubis_default_nand_part_large[] = {
 164         [0] = {
 165                 .name   = "Boot Agent",
 166                 .size   = SZ_128K,
 167                 .offset = 0,
 168         },
 169         [1] = {
 170                 .name   = "/boot",
 171                 .size   = SZ_4M - SZ_128K,
 172                 .offset = SZ_128K,
 173         },
 174         [2] = {
 175                 .name   = "user1",
 176                 .offset = SZ_4M,
 177                 .size   = SZ_32M - SZ_4M,
 178         },
 179         [3] = {
 180                 .name   = "user2",
 181                 .offset = SZ_32M,
 182                 .size   = MTDPART_SIZ_FULL,
 183         }
 184 };
 185
 186 /* the Anubis has 3 selectable slots for nand-flash, the two
 187  * on-board chip areas, as well as the external slot.
 188  *
 189  * Note, there is no current hot-plug support for the External
 190  * socket.
 191 */
 192
 193 static struct s3c2410_nand_set anubis_nand_sets[] = {
 194         [1] = {
 195                 .name           = "External",
 196                 .nr_chips       = 1,
 197                 .nr_map         = external_map,
 198                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 199                 .partitions     = anubis_default_nand_part,
 200         },
 201         [0] = {
 202                 .name           = "chip0",
 203                 .nr_chips       = 1,
 204                 .nr_map         = chip0_map,
 205                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 206                 .partitions     = anubis_default_nand_part,
 207         },
 208         [2] = {
 209                 .name           = "chip1",
 210                 .nr_chips       = 1,
 211                 .nr_map         = chip1_map,
 212                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 213                 .partitions     = anubis_default_nand_part,
 214         },
 215 };
 216
 217 static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
 218 {
 219         unsigned int tmp;
 220
 221         slot = set->nr_map[slot] & 3;
 222
 223         pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
 224                  slot, set, set->nr_map);
 225
 226         tmp = __raw_readb(ANUBIS_VA_CTRL1);
 227         tmp &= ~ANUBIS_CTRL1_NANDSEL;
 228         tmp |= slot;
 229
 230         pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
 231
 232         __raw_writeb(tmp, ANUBIS_VA_CTRL1);
 233 }
 234
 235 static struct s3c2410_platform_nand anubis_nand_info = {
 236         .tacls          = 25,
 237         .twrph0         = 55,
 238         .twrph1         = 40,
 239         .nr_sets        = ARRAY_SIZE(anubis_nand_sets),
 240         .sets           = anubis_nand_sets,
 241         .select_chip    = anubis_nand_select,
 242 };
 243
 244 /* IDE channels */
 245
 246 struct pata_platform_info anubis_ide_platdata = {
 247         .ioport_shift   = 5,
 248 };
 249
 250 static struct resource anubis_ide0_resource[] = {
 251         {
 252                 .start  = S3C2410_CS3,
 253                 .end    = S3C2410_CS3 + (8*32) - 1,
 254                 .flags  = IORESOURCE_MEM,
 255         }, {
 256                 .start  = S3C2410_CS3 + (1<<26) + (6*32),
 257                 .end    = S3C2410_CS3 + (1<<26) + (7*32) - 1,
 258                 .flags  = IORESOURCE_MEM,
 259         }, {
 260                 .start  = IRQ_IDE0,
 261                 .end    = IRQ_IDE0,
 262                 .flags  = IORESOURCE_IRQ,
 263         },
 264 };
 265
 266 static struct platform_device anubis_device_ide0 = {
 267         .name           = "pata_platform",
 268         .id             = 0,
 269         .num_resources  = ARRAY_SIZE(anubis_ide0_resource),
 270         .resource       = anubis_ide0_resource,
 271         .dev    = {
 272                 .platform_data = &anubis_ide_platdata,
 273                 .coherent_dma_mask = ~0,
 274         },
 275 };
 276
 277 static struct resource anubis_ide1_resource[] = {
 278         {
 279                 .start  = S3C2410_CS4,
 280                 .end    = S3C2410_CS4 + (8*32) - 1,
 281                 .flags  = IORESOURCE_MEM,
 282         }, {
 283                 .start  = S3C2410_CS4 + (1<<26) + (6*32),
 284                 .end    = S3C2410_CS4 + (1<<26) + (7*32) - 1,
 285                 .flags  = IORESOURCE_MEM,
 286         }, {
 287                 .start  = IRQ_IDE0,
 288                 .end    = IRQ_IDE0,
 289                 .flags  = IORESOURCE_IRQ,
 290         },
 291 };
 292
 293 static struct platform_device anubis_device_ide1 = {
 294         .name           = "pata_platform",
 295         .id             = 1,
 296         .num_resources  = ARRAY_SIZE(anubis_ide1_resource),
 297         .resource       = anubis_ide1_resource,
 298         .dev    = {
 299                 .platform_data = &anubis_ide_platdata,
 300                 .coherent_dma_mask = ~0,
 301         },
 302 };
 303
 304 /* Asix AX88796 10/100 ethernet controller */
 305
 306 static struct ax_plat_data anubis_asix_platdata = {
 307         .flags          = AXFLG_MAC_FROMDEV,
 308         .wordlength     = 2,
 309         .dcr_val        = 0x48,
 310         .rcr_val        = 0x40,
 311 };
 312
 313 static struct resource anubis_asix_resource[] = {
 314         [0] = {
 315                 .start = S3C2410_CS5,
 316                 .end   = S3C2410_CS5 + (0x20 * 0x20) -1,
 317                 .flags = IORESOURCE_MEM
 318         },
 319         [1] = {
 320                 .start = IRQ_ASIX,
 321                 .end   = IRQ_ASIX,
 322                 .flags = IORESOURCE_IRQ
 323         }
 324 };
 325
 326 static struct platform_device anubis_device_asix = {
 327         .name           = "ax88796",
 328         .id             = 0,
 329         .num_resources  = ARRAY_SIZE(anubis_asix_resource),
 330         .resource       = anubis_asix_resource,
 331         .dev            = {
 332                 .platform_data = &anubis_asix_platdata,
 333         }
 334 };
 335
 336 /* SM501 */
 337
 338 static struct resource anubis_sm501_resource[] = {
 339         [0] = {
 340                 .start  = S3C2410_CS2,
 341                 .end    = S3C2410_CS2 + SZ_8M,
 342                 .flags  = IORESOURCE_MEM,
 343         },
 344         [1] = {
 345                 .start  = S3C2410_CS2 + SZ_64M - SZ_2M,
 346                 .end    = S3C2410_CS2 + SZ_64M - 1,
 347                 .flags  = IORESOURCE_MEM,
 348         },
 349         [2] = {
 350                 .start  = IRQ_EINT0,
 351                 .end    = IRQ_EINT0,
 352                 .flags  = IORESOURCE_IRQ,
 353         },
 354 };
 355
 356 static struct sm501_initdata anubis_sm501_initdata = {
 357         .gpio_high      = {
 358                 .set    = 0x3F000000,           /* 24bit panel */
 359                 .mask   = 0x0,
 360         },
 361         .misc_timing    = {
 362                 .set    = 0x010100,             /* SDRAM timing */
 363                 .mask   = 0x1F1F00,
 364         },
 365         .misc_control   = {
 366                 .set    = SM501_MISC_PNL_24BIT,
 367                 .mask   = 0,
 368         },
 369
 370         .devices        = SM501_USE_GPIO,
 371
 372         /* set the SDRAM and bus clocks */
 373         .mclk           = 72 * MHZ,
 374         .m1xclk         = 144 * MHZ,
 375 };
 376
 377 static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
 378         [0] = {
 379                 .bus_num        = 1,
 380                 .pin_scl        = 44,
 381                 .pin_sda        = 45,
 382         },
 383         [1] = {
 384                 .bus_num        = 2,
 385                 .pin_scl        = 40,
 386                 .pin_sda        = 41,
 387         },
 388 };
 389
 390 static struct sm501_platdata anubis_sm501_platdata = {
 391         .init           = &anubis_sm501_initdata,
 392         .gpio_base      = -1,
 393         .gpio_i2c       = anubis_sm501_gpio_i2c,
 394         .gpio_i2c_nr    = ARRAY_SIZE(anubis_sm501_gpio_i2c),
 395 };
 396
 397 static struct platform_device anubis_device_sm501 = {
 398         .name           = "sm501",
 399         .id             = 0,
 400         .num_resources  = ARRAY_SIZE(anubis_sm501_resource),
 401         .resource       = anubis_sm501_resource,
 402         .dev            = {
 403                 .platform_data = &anubis_sm501_platdata,
 404         },
 405 };
 406
 407 /* Standard Anubis devices */
 408
 409 static struct platform_device *anubis_devices[] __initdata = {
 410         &s3c_device_usb,
 411         &s3c_device_wdt,
 412         &s3c_device_adc,
 413         &s3c_device_i2c0,
 414         &s3c_device_rtc,
 415         &s3c_device_nand,
 416         &anubis_device_ide0,
 417         &anubis_device_ide1,
 418         &anubis_device_asix,
 419         &anubis_device_sm501,
 420 };
 421
 422 static struct clk *anubis_clocks[] __initdata = {
 423         &s3c24xx_dclk0,
 424         &s3c24xx_dclk1,
 425         &s3c24xx_clkout0,
 426         &s3c24xx_clkout1,
 427         &s3c24xx_uclk,
 428 };
 429
 430 /* I2C devices. */
 431
 432 static struct i2c_board_info anubis_i2c_devs[] __initdata = {
 433         {
 434                 I2C_BOARD_INFO("tps65011", 0x48),
 435                 .irq    = IRQ_EINT20,
 436         }
 437 };
 438
 439 static void __init anubis_map_io(void)
 440 {
 441         /* initialise the clocks */
 442
 443         s3c24xx_dclk0.parent = &clk_upll;
 444         s3c24xx_dclk0.rate   = 12*1000*1000;
 445
 446         s3c24xx_dclk1.parent = &clk_upll;
 447         s3c24xx_dclk1.rate   = 24*1000*1000;
 448
 449         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
 450         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
 451
 452         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
 453
 454         s3c24xx_register_clocks(anubis_clocks, ARRAY_SIZE(anubis_clocks));
 455
 456         s3c_device_nand.dev.platform_data = &anubis_nand_info;
 457
 458         s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
 459         s3c24xx_init_clocks(0);
 460         s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
 461
 462         /* check for the newer revision boards with large page nand */
 463
 464         if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
 465                 printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
 466                        __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
 467                 anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
 468                 anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
 469         } else {
 470                 /* ensure that the GPIO is setup */
 471                 s3c2410_gpio_setpin(S3C2410_GPA0, 1);
 472         }
 473 }
 474
 475 static void __init anubis_init(void)
 476 {
 477         s3c_i2c0_set_platdata(NULL);
 478         platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
 479
 480         i2c_register_board_info(0, anubis_i2c_devs,
 481                                 ARRAY_SIZE(anubis_i2c_devs));
 482 }
 483
 484
 485 MACHINE_START(ANUBIS, "Simtec-Anubis")
 486         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 487         .phys_io        = S3C2410_PA_UART,
 488         .io_pg_offst    = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 489         .boot_params    = S3C2410_SDRAM_PA + 0x100,
 490         .map_io         = anubis_map_io,
 491         .init_machine   = anubis_init,
 492         .init_irq       = s3c24xx_init_irq,
 493         .timer          = &s3c24xx_timer,
 494 MACHINE_END