arch/arm/mach-s3c/mach-anubis.c

   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 <asm/irq.h>
  28 #include <asm/mach-types.h>
  29
  30 #include "regs-gpio.h"
  31 #include "gpio-samsung.h"
  32 #include <linux/platform_data/mtd-nand-s3c2410.h>
  33 #include <linux/platform_data/i2c-s3c2410.h>
  34
  35 #include <linux/mtd/mtd.h>
  36 #include <linux/mtd/rawnand.h>
  37 #include <linux/mtd/nand-ecc-sw-hamming.h>
  38 #include <linux/mtd/partitions.h>
  39
  40 #include <net/ax88796.h>
  41
  42 #include "devs.h"
  43 #include "cpu.h"
  44 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
  45
  46 #include "anubis.h"
  47 #include "s3c24xx.h"
  48 #include "simtec.h"
  49
  50 #define COPYRIGHT ", Copyright 2005-2009 Simtec Electronics"
  51
  52 static struct map_desc anubis_iodesc[] __initdata = {
  53   /* ISA IO areas */
  54
  55   {
  56         .virtual        = (u32)S3C24XX_VA_ISA_BYTE,
  57         .pfn            = __phys_to_pfn(0x0),
  58         .length         = SZ_4M,
  59         .type           = MT_DEVICE,
  60   }, {
  61         .virtual        = (u32)S3C24XX_VA_ISA_WORD,
  62         .pfn            = __phys_to_pfn(0x0),
  63         .length         = SZ_4M,
  64         .type           = MT_DEVICE,
  65   },
  66
  67   /* we could possibly compress the next set down into a set of smaller tables
  68    * pagetables, but that would mean using an L2 section, and it still means
  69    * we cannot actually feed the same register to an LDR due to 16K spacing
  70    */
  71
  72   /* CPLD control registers */
  73
  74   {
  75         .virtual        = (u32)ANUBIS_VA_CTRL1,
  76         .pfn            = __phys_to_pfn(ANUBIS_PA_CTRL1),
  77         .length         = SZ_4K,
  78         .type           = MT_DEVICE,
  79   }, {
  80         .virtual        = (u32)ANUBIS_VA_IDREG,
  81         .pfn            = __phys_to_pfn(ANUBIS_PA_IDREG),
  82         .length         = SZ_4K,
  83         .type           = MT_DEVICE,
  84   },
  85 };
  86
  87 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  88 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  89 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  90
  91 static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
  92         [0] = {
  93                 .hwport      = 0,
  94                 .flags       = 0,
  95                 .ucon        = UCON,
  96                 .ulcon       = ULCON,
  97                 .ufcon       = UFCON,
  98                 .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
  99         },
 100         [1] = {
 101                 .hwport      = 2,
 102                 .flags       = 0,
 103                 .ucon        = UCON,
 104                 .ulcon       = ULCON,
 105                 .ufcon       = UFCON,
 106                 .clk_sel        = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 107         },
 108 };
 109
 110 /* NAND Flash on Anubis board */
 111
 112 static int external_map[]   = { 2 };
 113 static int chip0_map[]      = { 0 };
 114 static int chip1_map[]      = { 1 };
 115
 116 static struct mtd_partition __initdata anubis_default_nand_part[] = {
 117         [0] = {
 118                 .name   = "Boot Agent",
 119                 .size   = SZ_16K,
 120                 .offset = 0,
 121         },
 122         [1] = {
 123                 .name   = "/boot",
 124                 .size   = SZ_4M - SZ_16K,
 125                 .offset = SZ_16K,
 126         },
 127         [2] = {
 128                 .name   = "user1",
 129                 .offset = SZ_4M,
 130                 .size   = SZ_32M - SZ_4M,
 131         },
 132         [3] = {
 133                 .name   = "user2",
 134                 .offset = SZ_32M,
 135                 .size   = MTDPART_SIZ_FULL,
 136         }
 137 };
 138
 139 static struct mtd_partition __initdata anubis_default_nand_part_large[] = {
 140         [0] = {
 141                 .name   = "Boot Agent",
 142                 .size   = SZ_128K,
 143                 .offset = 0,
 144         },
 145         [1] = {
 146                 .name   = "/boot",
 147                 .size   = SZ_4M - SZ_128K,
 148                 .offset = SZ_128K,
 149         },
 150         [2] = {
 151                 .name   = "user1",
 152                 .offset = SZ_4M,
 153                 .size   = SZ_32M - SZ_4M,
 154         },
 155         [3] = {
 156                 .name   = "user2",
 157                 .offset = SZ_32M,
 158                 .size   = MTDPART_SIZ_FULL,
 159         }
 160 };
 161
 162 /* the Anubis has 3 selectable slots for nand-flash, the two
 163  * on-board chip areas, as well as the external slot.
 164  *
 165  * Note, there is no current hot-plug support for the External
 166  * socket.
 167 */
 168
 169 static struct s3c2410_nand_set __initdata anubis_nand_sets[] = {
 170         [1] = {
 171                 .name           = "External",
 172                 .nr_chips       = 1,
 173                 .nr_map         = external_map,
 174                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 175                 .partitions     = anubis_default_nand_part,
 176         },
 177         [0] = {
 178                 .name           = "chip0",
 179                 .nr_chips       = 1,
 180                 .nr_map         = chip0_map,
 181                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 182                 .partitions     = anubis_default_nand_part,
 183         },
 184         [2] = {
 185                 .name           = "chip1",
 186                 .nr_chips       = 1,
 187                 .nr_map         = chip1_map,
 188                 .nr_partitions  = ARRAY_SIZE(anubis_default_nand_part),
 189                 .partitions     = anubis_default_nand_part,
 190         },
 191 };
 192
 193 static void anubis_nand_select(struct s3c2410_nand_set *set, int slot)
 194 {
 195         unsigned int tmp;
 196
 197         slot = set->nr_map[slot] & 3;
 198
 199         pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n",
 200                  slot, set, set->nr_map);
 201
 202         tmp = __raw_readb(ANUBIS_VA_CTRL1);
 203         tmp &= ~ANUBIS_CTRL1_NANDSEL;
 204         tmp |= slot;
 205
 206         pr_debug("anubis_nand: ctrl1 now %02x\n", tmp);
 207
 208         __raw_writeb(tmp, ANUBIS_VA_CTRL1);
 209 }
 210
 211 static struct s3c2410_platform_nand __initdata anubis_nand_info = {
 212         .tacls          = 25,
 213         .twrph0         = 55,
 214         .twrph1         = 40,
 215         .nr_sets        = ARRAY_SIZE(anubis_nand_sets),
 216         .sets           = anubis_nand_sets,
 217         .select_chip    = anubis_nand_select,
 218         .engine_type    = NAND_ECC_ENGINE_TYPE_SOFT,
 219 };
 220
 221 /* IDE channels */
 222
 223 static struct pata_platform_info anubis_ide_platdata = {
 224         .ioport_shift   = 5,
 225 };
 226
 227 static struct resource anubis_ide0_resource[] = {
 228         [0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32),
 229         [2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32),
 230         [3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 231 };
 232
 233 static struct platform_device anubis_device_ide0 = {
 234         .name           = "pata_platform",
 235         .id             = 0,
 236         .num_resources  = ARRAY_SIZE(anubis_ide0_resource),
 237         .resource       = anubis_ide0_resource,
 238         .dev    = {
 239                 .platform_data = &anubis_ide_platdata,
 240                 .coherent_dma_mask = ~0,
 241         },
 242 };
 243
 244 static struct resource anubis_ide1_resource[] = {
 245         [0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32),
 246         [1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32),
 247         [2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0),
 248 };
 249
 250 static struct platform_device anubis_device_ide1 = {
 251         .name           = "pata_platform",
 252         .id             = 1,
 253         .num_resources  = ARRAY_SIZE(anubis_ide1_resource),
 254         .resource       = anubis_ide1_resource,
 255         .dev    = {
 256                 .platform_data = &anubis_ide_platdata,
 257                 .coherent_dma_mask = ~0,
 258         },
 259 };
 260
 261 /* Asix AX88796 10/100 ethernet controller */
 262
 263 static struct ax_plat_data anubis_asix_platdata = {
 264         .flags          = AXFLG_MAC_FROMDEV,
 265         .wordlength     = 2,
 266         .dcr_val        = 0x48,
 267         .rcr_val        = 0x40,
 268 };
 269
 270 static struct resource anubis_asix_resource[] = {
 271         [0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20),
 272         [1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX),
 273 };
 274
 275 static struct platform_device anubis_device_asix = {
 276         .name           = "ax88796",
 277         .id             = 0,
 278         .num_resources  = ARRAY_SIZE(anubis_asix_resource),
 279         .resource       = anubis_asix_resource,
 280         .dev            = {
 281                 .platform_data = &anubis_asix_platdata,
 282         }
 283 };
 284
 285 /* SM501 */
 286
 287 static struct resource anubis_sm501_resource[] = {
 288         [0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M),
 289         [1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M),
 290         [2] = DEFINE_RES_IRQ(IRQ_EINT0),
 291 };
 292
 293 static struct sm501_initdata anubis_sm501_initdata = {
 294         .gpio_high      = {
 295                 .set    = 0x3F000000,           /* 24bit panel */
 296                 .mask   = 0x0,
 297         },
 298         .misc_timing    = {
 299                 .set    = 0x010100,             /* SDRAM timing */
 300                 .mask   = 0x1F1F00,
 301         },
 302         .misc_control   = {
 303                 .set    = SM501_MISC_PNL_24BIT,
 304                 .mask   = 0,
 305         },
 306
 307         .devices        = SM501_USE_GPIO,
 308
 309         /* set the SDRAM and bus clocks */
 310         .mclk           = 72 * MHZ,
 311         .m1xclk         = 144 * MHZ,
 312 };
 313
 314 static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = {
 315         [0] = {
 316                 .bus_num        = 1,
 317                 .pin_scl        = 44,
 318                 .pin_sda        = 45,
 319         },
 320         [1] = {
 321                 .bus_num        = 2,
 322                 .pin_scl        = 40,
 323                 .pin_sda        = 41,
 324         },
 325 };
 326
 327 static struct sm501_platdata anubis_sm501_platdata = {
 328         .init           = &anubis_sm501_initdata,
 329         .gpio_base      = -1,
 330         .gpio_i2c       = anubis_sm501_gpio_i2c,
 331         .gpio_i2c_nr    = ARRAY_SIZE(anubis_sm501_gpio_i2c),
 332 };
 333
 334 static struct platform_device anubis_device_sm501 = {
 335         .name           = "sm501",
 336         .id             = 0,
 337         .num_resources  = ARRAY_SIZE(anubis_sm501_resource),
 338         .resource       = anubis_sm501_resource,
 339         .dev            = {
 340                 .platform_data = &anubis_sm501_platdata,
 341         },
 342 };
 343
 344 /* Standard Anubis devices */
 345
 346 static struct platform_device *anubis_devices[] __initdata = {
 347         &s3c2410_device_dclk,
 348         &s3c_device_ohci,
 349         &s3c_device_wdt,
 350         &s3c_device_adc,
 351         &s3c_device_i2c0,
 352         &s3c_device_rtc,
 353         &s3c_device_nand,
 354         &anubis_device_ide0,
 355         &anubis_device_ide1,
 356         &anubis_device_asix,
 357         &anubis_device_sm501,
 358 };
 359
 360 /* I2C devices. */
 361
 362 static struct i2c_board_info anubis_i2c_devs[] __initdata = {
 363         {
 364                 I2C_BOARD_INFO("tps65011", 0x48),
 365                 .irq    = IRQ_EINT20,
 366         }
 367 };
 368
 369 /* Audio setup */
 370 static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = {
 371         .have_mic       = 1,
 372         .have_lout      = 1,
 373         .output_cdclk   = 1,
 374         .use_mpllin     = 1,
 375         .amp_gpio       = S3C2410_GPB(2),
 376         .amp_gain[0]    = S3C2410_GPD(10),
 377         .amp_gain[1]    = S3C2410_GPD(11),
 378 };
 379
 380 static void __init anubis_map_io(void)
 381 {
 382         s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc));
 383         s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs));
 384         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 385
 386         /* check for the newer revision boards with large page nand */
 387
 388         if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) {
 389                 printk(KERN_INFO "ANUBIS-B detected (revision %d)\n",
 390                        __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK);
 391                 anubis_nand_sets[0].partitions = anubis_default_nand_part_large;
 392                 anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large);
 393         } else {
 394                 /* ensure that the GPIO is setup */
 395                 gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
 396                 gpio_free(S3C2410_GPA(0));
 397         }
 398 }
 399
 400 static void __init anubis_init_time(void)
 401 {
 402         s3c2440_init_clocks(12000000);
 403         s3c24xx_timer_init();
 404 }
 405
 406 static void __init anubis_init(void)
 407 {
 408         s3c_i2c0_set_platdata(NULL);
 409         s3c_nand_set_platdata(&anubis_nand_info);
 410         simtec_audio_add(NULL, false, &anubis_audio);
 411
 412         platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices));
 413
 414         i2c_register_board_info(0, anubis_i2c_devs,
 415                                 ARRAY_SIZE(anubis_i2c_devs));
 416 }
 417
 418
 419 MACHINE_START(ANUBIS, "Simtec-Anubis")
 420         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 421         .atag_offset    = 0x100,
 422         .map_io         = anubis_map_io,
 423         .init_machine   = anubis_init,
 424         .init_irq       = s3c2440_init_irq,
 425         .init_time      = anubis_init_time,
 426 MACHINE_END