linux/arch/arm/mach-s3c24xx/mach-anubis.c
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   1// SPDX-License-Identifier: GPL-2.0
   2//
   3// Copyright 2003-2009 Simtec Electronics
   4//      http://armlinux.simtec.co.uk/
   5//      Ben Dooks <ben@simtec.co.uk>
   6
   7#include <linux/kernel.h>
   8#include <linux/types.h>
   9#include <linux/interrupt.h>
  10#include <linux/list.h>
  11#include <linux/timer.h>
  12#include <linux/init.h>
  13#include <linux/gpio.h>
  14#include <linux/serial_core.h>
  15#include <linux/serial_s3c.h>
  16#include <linux/platform_device.h>
  17#include <linux/ata_platform.h>
  18#include <linux/i2c.h>
  19#include <linux/io.h>
  20#include <linux/sm501.h>
  21#include <linux/sm501-regs.h>
  22
  23#include <asm/mach/arch.h>
  24#include <asm/mach/map.h>
  25#include <asm/mach/irq.h>
  26
  27#include <mach/hardware.h>
  28#include <asm/irq.h>
  29#include <asm/mach-types.h>
  30
  31#include <mach/regs-gpio.h>
  32#include <mach/regs-lcd.h>
  33#include <mach/gpio-samsung.h>
  34#include <linux/platform_data/mtd-nand-s3c2410.h>
  35#include <linux/platform_data/i2c-s3c2410.h>
  36
  37#include <linux/mtd/mtd.h>
  38#include <linux/mtd/rawnand.h>
  39#include <linux/mtd/nand_ecc.h>
  40#include <linux/mtd/partitions.h>
  41
  42#include <net/ax88796.h>
  43
  44#include <plat/devs.h>
  45#include <plat/cpu.h>
  46#include <linux/platform_data/asoc-s3c24xx_simtec.h>
  47#include <plat/samsung-time.h>
  48
  49#include "anubis.h"
  50#include "common.h"
  51#include "simtec.h"
  52
  53#define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"
  54
  55static struct map_desc anubis_iodesc[] __initdata = {
  56  /* ISA IO areas */
  57
  58  {
  59        .virtual        = (u32)S3C24XX_VA_ISA_BYTE,
  60        .pfn            = __phys_to_pfn(0x0),
  61        .length         = SZ_4M,
  62        .type           = MT_DEVICE,
  63  }, {
  64        .virtual        = (u32)S3C24XX_VA_ISA_WORD,
  65        .pfn            = __phys_to_pfn(0x0),
  66        .length         = SZ_4M,
  67        .type           = MT_DEVICE,
  68  },
  69
  70  /* we could possibly compress the next set down into a set of smaller tables
  71   * pagetables, but that would mean using an L2 section, and it still means
  72   * we cannot actually feed the same register to an LDR due to 16K spacing
  73   */
  74
  75  /* CPLD control registers */
  76
  77  {
  78        .virtual        = (u32)ANUBIS_VA_CTRL1,
  79        .pfn            = __phys_to_pfn(ANUBIS_PA_CTRL1),
  80        .length         = SZ_4K,
  81        .type           = MT_DEVICE,
  82  }, {
  83        .virtual        = (u32)ANUBIS_VA_IDREG,
  84        .pfn            = __phys_to_pfn(ANUBIS_PA_IDREG),
  85        .length         = SZ_4K,
  86        .type           = MT_DEVICE,
  87  },
  88};
  89
  90#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  91#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  92#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  93
  94static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
  95        [0] = {
  96                .hwport      = 0,
  97                .flags       = 0,
  98                .ucon        = UCON,
  99                .ulcon       = ULCON,
 100                .ufcon       = UFCON,
 101                .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 102        },
 103        [1] = {
 104                .hwport      = 2,
 105                .flags       = 0,
 106                .ucon        = UCON,
 107                .ulcon       = ULCON,
 108                .ufcon       = UFCON,
 109                .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 110        },
 111};
 112
 113/* NAND Flash on Anubis board */
 114
 115static int external_map[]   = { 2 };
 116static int chip0_map[]      = { 0 };
 117static int chip1_map[]      = { 1 };
 118
 119static struct mtd_partition __initdata anubis_default_nand_part[] = {
 120        [0] = {
 121                .name   = "Boot Agent",
 122                .size   = SZ_16K,
 123                .offset = 0,
 124        },
 125        [1] = {
 126                .name   = "/boot",
 127                .size   = SZ_4M - SZ_16K,
 128                .offset = SZ_16K,
 129        },
 130        [2] = {
 131                .name   = "user1",
 132                .offset = SZ_4M,
 133                .size   = SZ_32M - SZ_4M,
 134        },
 135        [3] = {
 136                .name   = "user2",
 137                .offset = SZ_32M,
 138                .size   = MTDPART_SIZ_FULL,
 139        }
 140};
 141
 142static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
 143        [0] = {
 144                .name   = "Boot Agent",
 145                .size   = SZ_128K,
 146                .offset = 0,
 147        },
 148        [1] = {
 149                .name   = "/boot",
 150                .size   = SZ_4M - SZ_128K,
 151                .offset = SZ_128K,
 152        },
 153        [2] = {
 154                .name   = "user1",
 155                .offset = SZ_4M,
 156                .size   = SZ_32M - SZ_4M,
 157        },
 158        [3] = {
 159                .name   = "user2",
 160                .offset = SZ_32M,
 161                .size   = MTDPART_SIZ_FULL,
 162        }
 163};
 164
 165/* the Anubis has 3 selectable slots for nand-flash, the two
 166 * on-board chip areas, as well as the external slot.
 167 *
 168 * Note, there is no current hot-plug support for the External
 169 * socket.
 170*/
 171
 172static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
 173        [1] = {
 174                .name           = "External",
 175                .nr_chips       = 1,
 176                .nr_map         = external_map,
 177                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 178                .partitions     = anubis_default_nand_part,
 179        },
 180        [0] = {
 181                .name           = "chip0",
 182                .nr_chips       = 1,
 183                .nr_map         = chip0_map,
 184                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 185                .partitions     = anubis_default_nand_part,
 186        },
 187        [2] = {
 188                .name           = "chip1",
 189                .nr_chips       = 1,
 190                .nr_map         = chip1_map,
 191                .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 192                .partitions     = anubis_default_nand_part,
 193        },
 194};
 195
 196static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
 197{
 198        unsigned int tmp;
 199
 200        slot = set->nr_map[slot] & 3;
 201
 202        pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
 203                 slot, set, set->nr_map);
 204
 205        tmp = __raw_readb(ANUBIS_VA_CTRL1);
 206        tmp &= ~ANUBIS_CTRL1_NANDSEL;
 207        tmp |= slot;
 208
 209        pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
 210
 211        __raw_writeb(tmp, ANUBIS_VA_CTRL1);
 212}
 213
 214static struct s3c2410_platform_nand __initdata anubis_nand_info = {
 215        .tacls          = 25,
 216        .twrph0         = 55,
 217        .twrph1         = 40,
 218        .nr_sets        = ARRAY_SIZE(anubis_nand_sets),
 219        .sets           = anubis_nand_sets,
 220        .select_chip    = anubis_nand_select,
 221        .ecc_mode       = NAND_ECC_SOFT,
 222};
 223
 224/* IDE channels */
 225
 226static struct pata_platform_info anubis_ide_platdata = {
 227        .ioport_shift   = 5,
 228};
 229
 230static struct resource anubis_ide0_resource[] = {
 231        [0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
 232        [2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
 233        [3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 234};
 235
 236static struct platform_device anubis_device_ide0 = {
 237        .name           = "pata_platform",
 238        .id             = 0,
 239        .num_resources  = ARRAY_SIZE(anubis_ide0_resource),
 240        .resource       = anubis_ide0_resource,
 241        .dev    = {
 242                .platform_data = &anubis_ide_platdata,
 243                .coherent_dma_mask = ~0,
 244        },
 245};
 246
 247static struct resource anubis_ide1_resource[] = {
 248        [0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
 249        [1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
 250        [2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 251};
 252
 253static struct platform_device anubis_device_ide1 = {
 254        .name           = "pata_platform",
 255        .id             = 1,
 256        .num_resources  = ARRAY_SIZE(anubis_ide1_resource),
 257        .resource       = anubis_ide1_resource,
 258        .dev    = {
 259                .platform_data = &anubis_ide_platdata,
 260                .coherent_dma_mask = ~0,
 261        },
 262};
 263
 264/* Asix AX88796 10/100 ethernet controller */
 265
 266static struct ax_plat_data anubis_asix_platdata = {
 267        .flags          = AXFLG_MAC_FROMDEV,
 268        .wordlength     = 2,
 269        .dcr_val        = 0x48,
 270        .rcr_val        = 0x40,
 271};
 272
 273static struct resource anubis_asix_resource[] = {
 274        [0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
 275        [1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
 276};
 277
 278static struct platform_device anubis_device_asix = {
 279        .name           = "ax88796",
 280        .id             = 0,
 281        .num_resources  = ARRAY_SIZE(anubis_asix_resource),
 282        .resource       = anubis_asix_resource,
 283        .dev            = {
 284                .platform_data = &anubis_asix_platdata,
 285        }
 286};
 287
 288/* SM501 */
 289
 290static struct resource anubis_sm501_resource[] = {
 291        [0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
 292        [1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
 293        [2] = DEFINE_RES_IRQ(IRQ_EINT0),
 294};
 295
 296static struct sm501_initdata anubis_sm501_initdata = {
 297        .gpio_high      = {
 298                .set    = 0x3F000000,           /* 24bit panel */
 299                .mask   = 0x0,
 300        },
 301        .misc_timing    = {
 302                .set    = 0x010100,             /* SDRAM timing */
 303                .mask   = 0x1F1F00,
 304        },
 305        .misc_control   = {
 306                .set    = SM501_MISC_PNL_24BIT,
 307                .mask   = 0,
 308        },
 309
 310        .devices        = SM501_USE_GPIO,
 311
 312        /* set the SDRAM and bus clocks */
 313        .mclk           = 72 * MHZ,
 314        .m1xclk         = 144 * MHZ,
 315};
 316
 317static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
 318        [0] = {
 319                .bus_num        = 1,
 320                .pin_scl        = 44,
 321                .pin_sda        = 45,
 322        },
 323        [1] = {
 324                .bus_num        = 2,
 325                .pin_scl        = 40,
 326                .pin_sda        = 41,
 327        },
 328};
 329
 330static struct sm501_platdata anubis_sm501_platdata = {
 331        .init           = &anubis_sm501_initdata,
 332        .gpio_base      = -1,
 333        .gpio_i2c       = anubis_sm501_gpio_i2c,
 334        .gpio_i2c_nr    = ARRAY_SIZE(anubis_sm501_gpio_i2c),
 335};
 336
 337static struct platform_device anubis_device_sm501 = {
 338        .name           = "sm501",
 339        .id             = 0,
 340        .num_resources  = ARRAY_SIZE(anubis_sm501_resource),
 341        .resource       = anubis_sm501_resource,
 342        .dev            = {
 343                .platform_data = &anubis_sm501_platdata,
 344        },
 345};
 346
 347/* Standard Anubis devices */
 348
 349static struct platform_device *anubis_devices[] __initdata = {
 350        &s3c2410_device_dclk,
 351        &s3c_device_ohci,
 352        &s3c_device_wdt,
 353        &s3c_device_adc,
 354        &s3c_device_i2c0,
 355        &s3c_device_rtc,
 356        &s3c_device_nand,
 357        &anubis_device_ide0,
 358        &anubis_device_ide1,
 359        &anubis_device_asix,
 360        &anubis_device_sm501,
 361};
 362
 363/* I2C devices. */
 364
 365static struct i2c_board_info anubis_i2c_devs[] __initdata = {
 366        {
 367                I2C_BOARD_INFO("tps65011", 0x48),
 368                .irq    = IRQ_EINT20,
 369        }
 370};
 371
 372/* Audio setup */
 373static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
 374        .have_mic       = 1,
 375        .have_lout      = 1,
 376        .output_cdclk   = 1,
 377        .use_mpllin     = 1,
 378        .amp_gpio       = S3C2410_GPB(2),
 379        .amp_gain[0]    = S3C2410_GPD(10),
 380        .amp_gain[1]    = S3C2410_GPD(11),
 381};
 382
 383static void __init anubis_map_io(void)
 384{
 385        s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
 386        s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
 387        samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 388
 389        /* check for the newer revision boards with large page nand */
 390
 391        if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
 392                printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
 393                       __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
 394                anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
 395                anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
 396        } else {
 397                /* ensure that the GPIO is setup */
 398                gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
 399                gpio_free(S3C2410_GPA(0));
 400        }
 401}
 402
 403static void __init anubis_init_time(void)
 404{
 405        s3c2440_init_clocks(12000000);
 406        samsung_timer_init();
 407}
 408
 409static void __init anubis_init(void)
 410{
 411        s3c_i2c0_set_platdata(NULL);
 412        s3c_nand_set_platdata(&anubis_nand_info);
 413        simtec_audio_add(NULL, false, &anubis_audio);
 414
 415        platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
 416
 417        i2c_register_board_info(0, anubis_i2c_devs,
 418                                ARRAY_SIZE(anubis_i2c_devs));
 419}
 420
 421
 422MACHINE_START(ANUBIS, "Simtec-Anubis")
 423        /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 424        .atag_offset    = 0x100,
 425        .map_io         = anubis_map_io,
 426        .init_machine   = anubis_init,
 427        .init_irq       = s3c2440_init_irq,
 428        .init_time      = anubis_init_time,
 429MACHINE_END
 430