linux/arch/arm/mach-s3c24xx/mach-anubis.c
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   1/* linux/arch/arm/mach-s3c2440/mach-anubis.c
   2 *
   3 * Copyright 2003-2009 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/gpio.h>
  19#include <linux/serial_core.h>
  20#include <linux/serial_s3c.h>
  21#include <linux/platform_device.h>
  22#include <linux/ata_platform.h>
  23#include <linux/i2c.h>
  24#include <linux/io.h>
  25#include <linux/sm501.h>
  26#include <linux/sm501-regs.h>
  27
  28#include <asm/mach/arch.h>
  29#include <asm/mach/map.h>
  30#include <asm/mach/irq.h>
  31
  32#include <mach/hardware.h>
  33#include <asm/irq.h>
  34#include <asm/mach-types.h>
  35
  36#include <mach/regs-gpio.h>
  37#include <mach/regs-lcd.h>
  38#include <mach/gpio-samsung.h>
  39#include <linux/platform_data/mtd-nand-s3c2410.h>
  40#include <linux/platform_data/i2c-s3c2410.h>
  41
  42#include <linux/mtd/mtd.h>
  43#include <linux/mtd/nand.h>
  44#include <linux/mtd/nand_ecc.h>
  45#include <linux/mtd/partitions.h>
  46
  47#include <net/ax88796.h>
  48
  49#include <plat/devs.h>
  50#include <plat/cpu.h>
  51#include <linux/platform_data/asoc-s3c24xx_simtec.h>
  52#include <plat/samsung-time.h>
  53
  54#include "anubis.h"
  55#include "common.h"
  56#include "simtec.h"
  57
  58#define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"
  59
  60static struct map_desc anubis_iodesc[] __initdata = {
  61  /* ISA IO areas */
  62
  63  {
  64        .virtual        = (u32)S3C24XX_VA_ISA_BYTE,
  65        .pfn            = __phys_to_pfn(0x0),
  66        .length         = SZ_4M,
  67        .type           = MT_DEVICE,
  68  }, {
  69        .virtual        = (u32)S3C24XX_VA_ISA_WORD,
  70        .pfn            = __phys_to_pfn(0x0),
  71        .length         = SZ_4M,
  72        .type           = MT_DEVICE,
  73  },
  74
  75  /* we could possibly compress the next set down into a set of smaller tables
  76   * pagetables, but that would mean using an L2 section, and it still means
  77   * we cannot actually feed the same register to an LDR due to 16K spacing
  78   */
  79
  80  /* CPLD control registers */
  81
  82  {
  83        .virtual        = (u32)ANUBIS_VA_CTRL1,
  84        .pfn            = __phys_to_pfn(ANUBIS_PA_CTRL1),
  85        .length         = SZ_4K,
  86        .type           = MT_DEVICE,
  87  }, {
  88        .virtual        = (u32)ANUBIS_VA_IDREG,
  89        .pfn            = __phys_to_pfn(ANUBIS_PA_IDREG),
  90        .length         = SZ_4K,
  91        .type           = MT_DEVICE,
  92  },
  93};
  94
  95#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  96#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  97#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  98
  99static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
 100        [0] = {
 101                .hwport      = 0,
 102                .flags       = 0,
 103                .ucon        = UCON,
 104                .ulcon       = ULCON,
 105                .ufcon       = UFCON,
 106                .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 107        },
 108        [1] = {
 109                .hwport      = 2,
 110                .flags       = 0,
 111                .ucon        = UCON,
 112                .ulcon       = ULCON,
 113                .ufcon       = UFCON,
 114                .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 115        },
 116};
 117
 118/* NAND Flash on Anubis board */
 119
 120static int external_map[]   = { 2 };
 121static int chip0_map[]      = { 0 };
 122static int chip1_map[]      = { 1 };
 123
 124static struct mtd_partition __initdata anubis_default_nand_part[] = {
 125        [0] = {
 126                .name   = "Boot Agent",
 127                .size   = SZ_16K,
 128                .offset = 0,
 129        },
 130        [1] = {
 131                .name   = "/boot",
 132                .size   = SZ_4M - SZ_16K,
 133                .offset = SZ_16K,
 134        },
 135        [2] = {
 136                .name   = "user1",
 137                .offset = SZ_4M,
 138                .size   = SZ_32M - SZ_4M,
 139        },
 140        [3] = {
 141                .name   = "user2",
 142                .offset = SZ_32M,
 143                .size   = MTDPART_SIZ_FULL,
 144        }
 145};
 146
 147static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
 148        [0] = {
 149                .name   = "Boot Agent",
 150                .size   = SZ_128K,
 151                .offset = 0,
 152        },
 153        [1] = {
 154                .name   = "/boot",
 155                .size   = SZ_4M - SZ_128K,
 156                .offset = SZ_128K,
 157        },
 158        [2] = {
 159                .name   = "user1",
 160                .offset = SZ_4M,
 161                .size   = SZ_32M - SZ_4M,
 162        },
 163        [3] = {
 164                .name   = "user2",
 165                .offset = SZ_32M,
 166                .size   = MTDPART_SIZ_FULL,
 167        }
 168};
 169
 170/* the Anubis has 3 selectable slots for nand-flash, the two
 171 * on-board chip areas, as well as the external slot.
 172 *
 173 * Note, there is no current hot-plug support for the External
 174 * socket.
 175*/
 176
 177static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
 178        [1] = {
 179                .name           = "External",
 180                .nr_chips       = 1,
 181                .nr_map         = external_map,
 182                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 183                .partitions     = anubis_default_nand_part,
 184        },
 185        [0] = {
 186                .name           = "chip0",
 187                .nr_chips       = 1,
 188                .nr_map         = chip0_map,
 189                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 190                .partitions     = anubis_default_nand_part,
 191        },
 192        [2] = {
 193                .name           = "chip1",
 194                .nr_chips       = 1,
 195                .nr_map         = chip1_map,
 196                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 197                .partitions     = anubis_default_nand_part,
 198        },
 199};
 200
 201static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
 202{
 203        unsigned int tmp;
 204
 205        slot = set->nr_map[slot] & 3;
 206
 207        pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
 208                 slot, set, set->nr_map);
 209
 210        tmp = __raw_readb(ANUBIS_VA_CTRL1);
 211        tmp &= ~ANUBIS_CTRL1_NANDSEL;
 212        tmp |= slot;
 213
 214        pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
 215
 216        __raw_writeb(tmp, ANUBIS_VA_CTRL1);
 217}
 218
 219static struct s3c2410_platform_nand __initdata anubis_nand_info = {
 220        .tacls          = 25,
 221        .twrph0         = 55,
 222        .twrph1         = 40,
 223        .nr_sets        = ARRAY_SIZE(anubis_nand_sets),
 224        .sets           = anubis_nand_sets,
 225        .select_chip    = anubis_nand_select,
 226        .ecc_mode       = NAND_ECC_SOFT,
 227};
 228
 229/* IDE channels */
 230
 231static struct pata_platform_info anubis_ide_platdata = {
 232        .ioport_shift   = 5,
 233};
 234
 235static struct resource anubis_ide0_resource[] = {
 236        [0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
 237        [2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
 238        [3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 239};
 240
 241static struct platform_device anubis_device_ide0 = {
 242        .name           = "pata_platform",
 243        .id             = 0,
 244        .num_resources  = ARRAY_SIZE(anubis_ide0_resource),
 245        .resource       = anubis_ide0_resource,
 246        .dev    = {
 247                .platform_data = &anubis_ide_platdata,
 248                .coherent_dma_mask = ~0,
 249        },
 250};
 251
 252static struct resource anubis_ide1_resource[] = {
 253        [0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
 254        [1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
 255        [2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 256};
 257
 258static struct platform_device anubis_device_ide1 = {
 259        .name           = "pata_platform",
 260        .id             = 1,
 261        .num_resources  = ARRAY_SIZE(anubis_ide1_resource),
 262        .resource       = anubis_ide1_resource,
 263        .dev    = {
 264                .platform_data = &anubis_ide_platdata,
 265                .coherent_dma_mask = ~0,
 266        },
 267};
 268
 269/* Asix AX88796 10/100 ethernet controller */
 270
 271static struct ax_plat_data anubis_asix_platdata = {
 272        .flags          = AXFLG_MAC_FROMDEV,
 273        .wordlength     = 2,
 274        .dcr_val        = 0x48,
 275        .rcr_val        = 0x40,
 276};
 277
 278static struct resource anubis_asix_resource[] = {
 279        [0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
 280        [1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
 281};
 282
 283static struct platform_device anubis_device_asix = {
 284        .name           = "ax88796",
 285        .id             = 0,
 286        .num_resources  = ARRAY_SIZE(anubis_asix_resource),
 287        .resource       = anubis_asix_resource,
 288        .dev            = {
 289                .platform_data = &anubis_asix_platdata,
 290        }
 291};
 292
 293/* SM501 */
 294
 295static struct resource anubis_sm501_resource[] = {
 296        [0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
 297        [1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
 298        [2] = DEFINE_RES_IRQ(IRQ_EINT0),
 299};
 300
 301static struct sm501_initdata anubis_sm501_initdata = {
 302        .gpio_high      = {
 303                .set    = 0x3F000000,           /* 24bit panel */
 304                .mask   = 0x0,
 305        },
 306        .misc_timing    = {
 307                .set    = 0x010100,             /* SDRAM timing */
 308                .mask   = 0x1F1F00,
 309        },
 310        .misc_control   = {
 311                .set    = SM501_MISC_PNL_24BIT,
 312                .mask   = 0,
 313        },
 314
 315        .devices        = SM501_USE_GPIO,
 316
 317        /* set the SDRAM and bus clocks */
 318        .mclk           = 72 * MHZ,
 319        .m1xclk         = 144 * MHZ,
 320};
 321
 322static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
 323        [0] = {
 324                .bus_num        = 1,
 325                .pin_scl        = 44,
 326                .pin_sda        = 45,
 327        },
 328        [1] = {
 329                .bus_num        = 2,
 330                .pin_scl        = 40,
 331                .pin_sda        = 41,
 332        },
 333};
 334
 335static struct sm501_platdata anubis_sm501_platdata = {
 336        .init           = &anubis_sm501_initdata,
 337        .gpio_base      = -1,
 338        .gpio_i2c       = anubis_sm501_gpio_i2c,
 339        .gpio_i2c_nr    = ARRAY_SIZE(anubis_sm501_gpio_i2c),
 340};
 341
 342static struct platform_device anubis_device_sm501 = {
 343        .name           = "sm501",
 344        .id             = 0,
 345        .num_resources  = ARRAY_SIZE(anubis_sm501_resource),
 346        .resource       = anubis_sm501_resource,
 347        .dev            = {
 348                .platform_data = &anubis_sm501_platdata,
 349        },
 350};
 351
 352/* Standard Anubis devices */
 353
 354static struct platform_device *anubis_devices[] __initdata = {
 355        &s3c2410_device_dclk,
 356        &s3c_device_ohci,
 357        &s3c_device_wdt,
 358        &s3c_device_adc,
 359        &s3c_device_i2c0,
 360        &s3c_device_rtc,
 361        &s3c_device_nand,
 362        &anubis_device_ide0,
 363        &anubis_device_ide1,
 364        &anubis_device_asix,
 365        &anubis_device_sm501,
 366};
 367
 368/* I2C devices. */
 369
 370static struct i2c_board_info anubis_i2c_devs[] __initdata = {
 371        {
 372                I2C_BOARD_INFO("tps65011", 0x48),
 373                .irq    = IRQ_EINT20,
 374        }
 375};
 376
 377/* Audio setup */
 378static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
 379        .have_mic       = 1,
 380        .have_lout      = 1,
 381        .output_cdclk   = 1,
 382        .use_mpllin     = 1,
 383        .amp_gpio       = S3C2410_GPB(2),
 384        .amp_gain[0]    = S3C2410_GPD(10),
 385        .amp_gain[1]    = S3C2410_GPD(11),
 386};
 387
 388static void __init anubis_map_io(void)
 389{
 390        s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
 391        s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
 392        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 393
 394        /* check for the newer revision boards with large page nand */
 395
 396        if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
 397                printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
 398                       __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
 399                anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
 400                anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
 401        } else {
 402                /* ensure that the GPIO is setup */
 403                gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
 404                gpio_free(S3C2410_GPA(0));
 405        }
 406}
 407
 408static void __init anubis_init_time(void)
 409{
 410        s3c2440_init_clocks(12000000);
 411        samsung_timer_init();
 412}
 413
 414static void __init anubis_init(void)
 415{
 416        s3c_i2c0_set_platdata(NULL);
 417        s3c_nand_set_platdata(&anubis_nand_info);
 418        simtec_audio_add(NULL, false, &anubis_audio);
 419
 420        platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
 421
 422        i2c_register_board_info(0, anubis_i2c_devs,
 423                                ARRAY_SIZE(anubis_i2c_devs));
 424}
 425
 426
 427MACHINE_START(ANUBIS, "Simtec-Anubis")
 428        /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 429        .atag_offset    = 0x100,
 430        .map_io         = anubis_map_io,
 431        .init_machine   = anubis_init,
 432        .init_irq       = s3c2440_init_irq,
 433        .init_time      = anubis_init_time,
 434MACHINE_END
 435