arch/arm/mach-orion5x/dns323-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/dns323-setup.c
   3  *
   4  * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
   5  *
   6  * Support for HW Rev C1:
   7  *
   8  * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as
  12  * published by the Free Software Foundation; either version 2 of the
  13  * License, or (at your option) any later version.
  14  *
  15  */
  16
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/delay.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/pci.h>
  22 #include <linux/irq.h>
  23 #include <linux/mtd/physmap.h>
  24 #include <linux/mv643xx_eth.h>
  25 #include <linux/leds.h>
  26 #include <linux/gpio_keys.h>
  27 #include <linux/input.h>
  28 #include <linux/i2c.h>
  29 #include <linux/ata_platform.h>
  30 #include <linux/phy.h>
  31 #include <linux/marvell_phy.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/gpio.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/pci.h>
  36 #include <mach/orion5x.h>
  37 #include "common.h"
  38 #include "mpp.h"
  39
  40 /* Rev A1 and B1 */
  41 #define DNS323_GPIO_LED_RIGHT_AMBER     1
  42 #define DNS323_GPIO_LED_LEFT_AMBER      2
  43 #define DNS323_GPIO_SYSTEM_UP           3
  44 #define DNS323_GPIO_LED_POWER1          4
  45 #define DNS323_GPIO_LED_POWER2          5
  46 #define DNS323_GPIO_OVERTEMP            6
  47 #define DNS323_GPIO_RTC                 7
  48 #define DNS323_GPIO_POWER_OFF           8
  49 #define DNS323_GPIO_KEY_POWER           9
  50 #define DNS323_GPIO_KEY_RESET           10
  51
  52 /* Rev C1 */
  53 #define DNS323C_GPIO_KEY_POWER          1
  54 #define DNS323C_GPIO_POWER_OFF          2
  55 #define DNS323C_GPIO_LED_RIGHT_AMBER    8
  56 #define DNS323C_GPIO_LED_LEFT_AMBER     9
  57 #define DNS323C_GPIO_LED_POWER          17
  58 #define DNS323C_GPIO_FAN_BIT1           18
  59 #define DNS323C_GPIO_FAN_BIT0           19
  60
  61 /* Exposed to userspace, do not change */
  62 enum {
  63         DNS323_REV_A1,  /* 0 */
  64         DNS323_REV_B1,  /* 1 */
  65         DNS323_REV_C1,  /* 2 */
  66 };
  67
  68
  69 /****************************************************************************
  70  * PCI setup
  71  */
  72
  73 static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  74 {
  75         int irq;
  76
  77         /*
  78          * Check for devices with hard-wired IRQs.
  79          */
  80         irq = orion5x_pci_map_irq(dev, slot, pin);
  81         if (irq != -1)
  82                 return irq;
  83
  84         return -1;
  85 }
  86
  87 static struct hw_pci dns323_pci __initdata = {
  88         .nr_controllers = 2,
  89         .swizzle        = pci_std_swizzle,
  90         .setup          = orion5x_pci_sys_setup,
  91         .scan           = orion5x_pci_sys_scan_bus,
  92         .map_irq        = dns323_pci_map_irq,
  93 };
  94
  95 static int __init dns323_pci_init(void)
  96 {
  97         /* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
  98          * gets in the way of initialising the SATA controller.
  99          */
 100         if (machine_is_dns323() && system_rev == DNS323_REV_A1)
 101                 pci_common_init(&dns323_pci);
 102
 103         return 0;
 104 }
 105
 106 subsys_initcall(dns323_pci_init);
 107
 108 /****************************************************************************
 109  * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
 110  *
 111  * Layout as used by D-Link:
 112  *  0x00000000-0x00010000 : "MTD1"
 113  *  0x00010000-0x00020000 : "MTD2"
 114  *  0x00020000-0x001a0000 : "Linux Kernel"
 115  *  0x001a0000-0x007d0000 : "File System"
 116  *  0x007d0000-0x00800000 : "u-boot"
 117  */
 118
 119 #define DNS323_NOR_BOOT_BASE 0xf4000000
 120 #define DNS323_NOR_BOOT_SIZE SZ_8M
 121
 122 static struct mtd_partition dns323_partitions[] = {
 123         {
 124                 .name   = "MTD1",
 125                 .size   = 0x00010000,
 126                 .offset = 0,
 127         }, {
 128                 .name   = "MTD2",
 129                 .size   = 0x00010000,
 130                 .offset = 0x00010000,
 131         }, {
 132                 .name   = "Linux Kernel",
 133                 .size   = 0x00180000,
 134                 .offset = 0x00020000,
 135         }, {
 136                 .name   = "File System",
 137                 .size   = 0x00630000,
 138                 .offset = 0x001A0000,
 139         }, {
 140                 .name   = "u-boot",
 141                 .size   = 0x00030000,
 142                 .offset = 0x007d0000,
 143         },
 144 };
 145
 146 static struct physmap_flash_data dns323_nor_flash_data = {
 147         .width          = 1,
 148         .parts          = dns323_partitions,
 149         .nr_parts       = ARRAY_SIZE(dns323_partitions)
 150 };
 151
 152 static struct resource dns323_nor_flash_resource = {
 153         .flags          = IORESOURCE_MEM,
 154         .start          = DNS323_NOR_BOOT_BASE,
 155         .end            = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
 156 };
 157
 158 static struct platform_device dns323_nor_flash = {
 159         .name           = "physmap-flash",
 160         .id             = 0,
 161         .dev            = {
 162                 .platform_data  = &dns323_nor_flash_data,
 163         },
 164         .resource       = &dns323_nor_flash_resource,
 165         .num_resources  = 1,
 166 };
 167
 168 /****************************************************************************
 169  * Ethernet
 170  */
 171
 172 static struct mv643xx_eth_platform_data dns323_eth_data = {
 173         .phy_addr = MV643XX_ETH_PHY_ADDR(8),
 174 };
 175
 176 /* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
 177  * functions be kept somewhere?
 178  */
 179 static int __init dns323_parse_hex_nibble(char n)
 180 {
 181         if (n >= '0' && n <= '9')
 182                 return n - '0';
 183
 184         if (n >= 'A' && n <= 'F')
 185                 return n - 'A' + 10;
 186
 187         if (n >= 'a' && n <= 'f')
 188                 return n - 'a' + 10;
 189
 190         return -1;
 191 }
 192
 193 static int __init dns323_parse_hex_byte(const char *b)
 194 {
 195         int hi;
 196         int lo;
 197
 198         hi = dns323_parse_hex_nibble(b[0]);
 199         lo = dns323_parse_hex_nibble(b[1]);
 200
 201         if (hi < 0 || lo < 0)
 202                 return -1;
 203
 204         return (hi << 4) | lo;
 205 }
 206
 207 static int __init dns323_read_mac_addr(void)
 208 {
 209         u_int8_t addr[6];
 210         int i;
 211         char *mac_page;
 212
 213         /* MAC address is stored as a regular ol' string in /dev/mtdblock4
 214          * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
 215          */
 216         mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
 217         if (!mac_page)
 218                 return -ENOMEM;
 219
 220         /* Sanity check the string we're looking at */
 221         for (i = 0; i < 5; i++) {
 222                 if (*(mac_page + (i * 3) + 2) != ':') {
 223                         goto error_fail;
 224                 }
 225         }
 226
 227         for (i = 0; i < 6; i++) {
 228                 int byte;
 229
 230                 byte = dns323_parse_hex_byte(mac_page + (i * 3));
 231                 if (byte < 0) {
 232                         goto error_fail;
 233                 }
 234
 235                 addr[i] = byte;
 236         }
 237
 238         iounmap(mac_page);
 239         printk("DNS-323: Found ethernet MAC address: ");
 240         for (i = 0; i < 6; i++)
 241                 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
 242
 243         memcpy(dns323_eth_data.mac_addr, addr, 6);
 244
 245         return 0;
 246
 247 error_fail:
 248         iounmap(mac_page);
 249         return -EINVAL;
 250 }
 251
 252 /****************************************************************************
 253  * GPIO LEDs (simple - doesn't use hardware blinking support)
 254  */
 255
 256 #define ORION_BLINK_HALF_PERIOD 100 /* ms */
 257
 258 static int dns323_gpio_blink_set(unsigned gpio, int state,
 259         unsigned long *delay_on, unsigned long *delay_off)
 260 {
 261
 262         if (delay_on && delay_off && !*delay_on && !*delay_off)
 263                 *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
 264
 265         switch(state) {
 266         case GPIO_LED_NO_BLINK_LOW:
 267         case GPIO_LED_NO_BLINK_HIGH:
 268                 orion_gpio_set_blink(gpio, 0);
 269                 gpio_set_value(gpio, state);
 270                 break;
 271         case GPIO_LED_BLINK:
 272                 orion_gpio_set_blink(gpio, 1);
 273         }
 274         return 0;
 275 }
 276
 277 static struct gpio_led dns323ab_leds[] = {
 278         {
 279                 .name = "power:blue",
 280                 .gpio = DNS323_GPIO_LED_POWER2,
 281                 .default_trigger = "default-on",
 282         }, {
 283                 .name = "right:amber",
 284                 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
 285                 .active_low = 1,
 286         }, {
 287                 .name = "left:amber",
 288                 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
 289                 .active_low = 1,
 290         },
 291 };
 292
 293
 294 static struct gpio_led dns323c_leds[] = {
 295         {
 296                 .name = "power:blue",
 297                 .gpio = DNS323C_GPIO_LED_POWER,
 298                 .default_trigger = "timer",
 299                 .active_low = 1,
 300         }, {
 301                 .name = "right:amber",
 302                 .gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
 303                 .active_low = 1,
 304         }, {
 305                 .name = "left:amber",
 306                 .gpio = DNS323C_GPIO_LED_LEFT_AMBER,
 307                 .active_low = 1,
 308         },
 309 };
 310
 311
 312 static struct gpio_led_platform_data dns323ab_led_data = {
 313         .num_leds       = ARRAY_SIZE(dns323ab_leds),
 314         .leds           = dns323ab_leds,
 315         .gpio_blink_set = dns323_gpio_blink_set,
 316 };
 317
 318 static struct gpio_led_platform_data dns323c_led_data = {
 319         .num_leds       = ARRAY_SIZE(dns323c_leds),
 320         .leds           = dns323c_leds,
 321         .gpio_blink_set = dns323_gpio_blink_set,
 322 };
 323
 324 static struct platform_device dns323_gpio_leds = {
 325         .name           = "leds-gpio",
 326         .id             = -1,
 327         .dev            = {
 328                 .platform_data  = &dns323ab_led_data,
 329         },
 330 };
 331
 332 /****************************************************************************
 333  * GPIO Attached Keys
 334  */
 335
 336 static struct gpio_keys_button dns323ab_buttons[] = {
 337         {
 338                 .code           = KEY_RESTART,
 339                 .gpio           = DNS323_GPIO_KEY_RESET,
 340                 .desc           = "Reset Button",
 341                 .active_low     = 1,
 342         }, {
 343                 .code           = KEY_POWER,
 344                 .gpio           = DNS323_GPIO_KEY_POWER,
 345                 .desc           = "Power Button",
 346                 .active_low     = 1,
 347         },
 348 };
 349
 350 static struct gpio_keys_platform_data dns323ab_button_data = {
 351         .buttons        = dns323ab_buttons,
 352         .nbuttons       = ARRAY_SIZE(dns323ab_buttons),
 353 };
 354
 355 static struct gpio_keys_button dns323c_buttons[] = {
 356         {
 357                 .code           = KEY_POWER,
 358                 .gpio           = DNS323C_GPIO_KEY_POWER,
 359                 .desc           = "Power Button",
 360                 .active_low     = 1,
 361         },
 362 };
 363
 364 static struct gpio_keys_platform_data dns323c_button_data = {
 365         .buttons        = dns323c_buttons,
 366         .nbuttons       = ARRAY_SIZE(dns323c_buttons),
 367 };
 368
 369 static struct platform_device dns323_button_device = {
 370         .name           = "gpio-keys",
 371         .id             = -1,
 372         .num_resources  = 0,
 373         .dev            = {
 374                 .platform_data  = &dns323ab_button_data,
 375         },
 376 };
 377
 378 /*****************************************************************************
 379  * SATA
 380  */
 381 static struct mv_sata_platform_data dns323_sata_data = {
 382        .n_ports        = 2,
 383 };
 384
 385 /****************************************************************************
 386  * General Setup
 387  */
 388 static unsigned int dns323a_mpp_modes[] __initdata = {
 389         MPP0_PCIE_RST_OUTn,
 390         MPP1_GPIO,              /* right amber LED (sata ch0) */
 391         MPP2_GPIO,              /* left amber LED (sata ch1) */
 392         MPP3_UNUSED,
 393         MPP4_GPIO,              /* power button LED */
 394         MPP5_GPIO,              /* power button LED */
 395         MPP6_GPIO,              /* GMT G751-2f overtemp */
 396         MPP7_GPIO,              /* M41T80 nIRQ/OUT/SQW */
 397         MPP8_GPIO,              /* triggers power off */
 398         MPP9_GPIO,              /* power button switch */
 399         MPP10_GPIO,             /* reset button switch */
 400         MPP11_UNUSED,
 401         MPP12_UNUSED,
 402         MPP13_UNUSED,
 403         MPP14_UNUSED,
 404         MPP15_UNUSED,
 405         MPP16_UNUSED,
 406         MPP17_UNUSED,
 407         MPP18_UNUSED,
 408         MPP19_UNUSED,
 409         0,
 410 };
 411
 412 static unsigned int dns323b_mpp_modes[] __initdata = {
 413         MPP0_UNUSED,
 414         MPP1_GPIO,              /* right amber LED (sata ch0) */
 415         MPP2_GPIO,              /* left amber LED (sata ch1) */
 416         MPP3_GPIO,              /* system up flag */
 417         MPP4_GPIO,              /* power button LED */
 418         MPP5_GPIO,              /* power button LED */
 419         MPP6_GPIO,              /* GMT G751-2f overtemp */
 420         MPP7_GPIO,              /* M41T80 nIRQ/OUT/SQW */
 421         MPP8_GPIO,              /* triggers power off */
 422         MPP9_GPIO,              /* power button switch */
 423         MPP10_GPIO,             /* reset button switch */
 424         MPP11_UNUSED,
 425         MPP12_SATA_LED,
 426         MPP13_SATA_LED,
 427         MPP14_SATA_LED,
 428         MPP15_SATA_LED,
 429         MPP16_UNUSED,
 430         MPP17_UNUSED,
 431         MPP18_UNUSED,
 432         MPP19_UNUSED,
 433         0,
 434 };
 435
 436 static unsigned int dns323c_mpp_modes[] __initdata = {
 437         MPP0_GPIO,              /* ? input */
 438         MPP1_GPIO,              /* input power switch (0 = pressed) */
 439         MPP2_GPIO,              /* output power off */
 440         MPP3_UNUSED,            /* ? output */
 441         MPP4_UNUSED,            /* ? output */
 442         MPP5_UNUSED,            /* ? output */
 443         MPP6_UNUSED,            /* ? output */
 444         MPP7_UNUSED,            /* ? output */
 445         MPP8_GPIO,              /* i/o right amber LED */
 446         MPP9_GPIO,              /* i/o left amber LED */
 447         MPP10_GPIO,             /* input */
 448         MPP11_UNUSED,
 449         MPP12_SATA_LED,
 450         MPP13_SATA_LED,
 451         MPP14_SATA_LED,
 452         MPP15_SATA_LED,
 453         MPP16_UNUSED,
 454         MPP17_GPIO,             /* power button LED */
 455         MPP18_GPIO,             /* fan speed bit 0 */
 456         MPP19_GPIO,             /* fan speed bit 1 */
 457         0,
 458 };
 459
 460 /* Rev C1 Fan speed notes:
 461  *
 462  * The fan is controlled by 2 GPIOs on this board. The settings
 463  * of the bits is as follow:
 464  *
 465  *  GPIO 18    GPIO 19    Fan
 466  *
 467  *    0          0        stopped
 468  *    0          1        low speed
 469  *    1          0        high speed
 470  *    1          1        don't do that (*)
 471  *
 472  * (*) I think the two bits control two feed-in resistors into a fixed
 473  *     PWN circuit, setting both bits will basically go a 'bit' faster
 474  *     than high speed, but d-link doesn't do it and you may get out of
 475  *     HW spec so don't do it.
 476  */
 477
 478 /*
 479  * On the DNS-323 A1 and B1 the following devices are attached via I2C:
 480  *
 481  *  i2c addr | chip        | description
 482  *  0x3e     | GMT G760Af  | fan speed PWM controller
 483  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 484  *  0x68     | ST M41T80   | RTC w/ alarm
 485  */
 486 static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
 487         {
 488                 I2C_BOARD_INFO("g760a", 0x3e),
 489         }, {
 490                 I2C_BOARD_INFO("lm75", 0x48),
 491         }, {
 492                 I2C_BOARD_INFO("m41t80", 0x68),
 493         },
 494 };
 495
 496 /*
 497  * On the DNS-323 C1 the following devices are attached via I2C:
 498  *
 499  *  i2c addr | chip        | description
 500  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 501  *  0x68     | ST M41T80   | RTC w/ alarm
 502  */
 503 static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
 504         {
 505                 I2C_BOARD_INFO("lm75", 0x48),
 506         }, {
 507                 I2C_BOARD_INFO("m41t80", 0x68),
 508         },
 509 };
 510
 511 /* DNS-323 rev. A specific power off method */
 512 static void dns323a_power_off(void)
 513 {
 514         pr_info("DNS-323: Triggering power-off...\n");
 515         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 516 }
 517
 518 /* DNS-323 rev B specific power off method */
 519 static void dns323b_power_off(void)
 520 {
 521         pr_info("DNS-323: Triggering power-off...\n");
 522         /* Pin has to be changed to 1 and back to 0 to do actual power off. */
 523         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 524         mdelay(100);
 525         gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
 526 }
 527
 528 /* DNS-323 rev. C specific power off method */
 529 static void dns323c_power_off(void)
 530 {
 531         pr_info("DNS-323: Triggering power-off...\n");
 532         gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
 533 }
 534
 535 static int dns323c_phy_fixup(struct phy_device *phy)
 536 {
 537         phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
 538
 539         return 0;
 540 }
 541
 542 static int __init dns323_identify_rev(void)
 543 {
 544         u32 dev, rev, i, reg;
 545
 546         pr_debug("DNS-323: Identifying board ... \n");
 547
 548         /* Rev A1 has a 5181 */
 549         orion5x_pcie_id(&dev, &rev);
 550         if (dev == MV88F5181_DEV_ID) {
 551                 pr_debug("DNS-323: 5181 found, board is A1\n");
 552                 return DNS323_REV_A1;
 553         }
 554         pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
 555
 556         /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
 557          * a bit gross but we want to do that without links into the eth
 558          * driver so let's poke at it directly. We default to rev B1 in
 559          * case the accesses fail
 560          */
 561
 562 #define ETH_SMI_REG             (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
 563 #define  SMI_BUSY               0x10000000
 564 #define  SMI_READ_VALID         0x08000000
 565 #define  SMI_OPCODE_READ        0x04000000
 566 #define  SMI_OPCODE_WRITE       0x00000000
 567
 568         for (i = 0; i < 1000; i++) {
 569                 reg = readl(ETH_SMI_REG);
 570                 if (!(reg & SMI_BUSY))
 571                         break;
 572         }
 573         if (i >= 1000) {
 574                 pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
 575                 return DNS323_REV_B1;
 576         }
 577         writel((3 << 21)        /* phy ID reg */ |
 578                (8 << 16)        /* phy addr */ |
 579                SMI_OPCODE_READ, ETH_SMI_REG);
 580         for (i = 0; i < 1000; i++) {
 581                 reg = readl(ETH_SMI_REG);
 582                 if (reg & SMI_READ_VALID)
 583                         break;
 584         }
 585         if (i >= 1000) {
 586                 pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
 587                 return DNS323_REV_B1;
 588         }
 589         pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
 590
 591         /* Note: the Marvell tools mask the ID with 0x3f0 before comparison
 592          * but I don't see that making a difference here, at least with
 593          * any known Marvell PHY ID
 594          */
 595         switch(reg & 0xfff0) {
 596         case 0x0cc0: /* MV88E1111 */
 597                 return DNS323_REV_B1;
 598         case 0x0e10: /* MV88E1118 */
 599                 return DNS323_REV_C1;
 600         default:
 601                 pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
 602                            reg & 0xffff);
 603         }
 604         return DNS323_REV_B1;
 605 }
 606
 607 static void __init dns323_init(void)
 608 {
 609         /* Setup basic Orion functions. Need to be called early. */
 610         orion5x_init();
 611
 612         /* Identify revision */
 613         system_rev = dns323_identify_rev();
 614         pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
 615
 616         /* Just to be tricky, the 5182 has a completely different
 617          * set of MPP modes to the 5181.
 618          */
 619         switch(system_rev) {
 620         case DNS323_REV_A1:
 621                 orion5x_mpp_conf(dns323a_mpp_modes);
 622                 writel(0, MPP_DEV_CTRL);                /* DEV_D[31:16] */
 623                 break;
 624         case DNS323_REV_B1:
 625                 orion5x_mpp_conf(dns323b_mpp_modes);
 626                 break;
 627         case DNS323_REV_C1:
 628                 orion5x_mpp_conf(dns323c_mpp_modes);
 629                 break;
 630         }
 631
 632         /* setup flash mapping
 633          * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
 634          */
 635         orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
 636         platform_device_register(&dns323_nor_flash);
 637
 638         /* Sort out LEDs, Buttons and i2c devices */
 639         switch(system_rev) {
 640         case DNS323_REV_A1:
 641                 /* The 5181 power LED is active low and requires
 642                  * DNS323_GPIO_LED_POWER1 to also be low.
 643                  */
 644                  dns323ab_leds[0].active_low = 1;
 645                  gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
 646                  gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
 647                 /* Fall through */
 648         case DNS323_REV_B1:
 649                 i2c_register_board_info(0, dns323ab_i2c_devices,
 650                                 ARRAY_SIZE(dns323ab_i2c_devices));
 651                 break;
 652         case DNS323_REV_C1:
 653                 /* Hookup LEDs & Buttons */
 654                 dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
 655                 dns323_button_device.dev.platform_data = &dns323c_button_data;
 656
 657                 /* Hookup i2c devices and fan driver */
 658                 i2c_register_board_info(0, dns323c_i2c_devices,
 659                                 ARRAY_SIZE(dns323c_i2c_devices));
 660                 platform_device_register_simple("dns323c-fan", 0, NULL, 0);
 661
 662                 /* Register fixup for the PHY LEDs */
 663                 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
 664                                            MARVELL_PHY_ID_MASK,
 665                                            dns323c_phy_fixup);
 666         }
 667
 668         platform_device_register(&dns323_gpio_leds);
 669         platform_device_register(&dns323_button_device);
 670
 671         /*
 672          * Configure peripherals.
 673          */
 674         if (dns323_read_mac_addr() < 0)
 675                 printk("DNS-323: Failed to read MAC address\n");
 676         orion5x_ehci0_init();
 677         orion5x_eth_init(&dns323_eth_data);
 678         orion5x_i2c_init();
 679         orion5x_uart0_init();
 680
 681         /* Remaining GPIOs */
 682         switch(system_rev) {
 683         case DNS323_REV_A1:
 684                 /* Poweroff GPIO */
 685                 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 686                     gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 687                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 688                 pm_power_off = dns323a_power_off;
 689                 break;
 690         case DNS323_REV_B1:
 691                 /* 5182 built-in SATA init */
 692                 orion5x_sata_init(&dns323_sata_data);
 693
 694                 /* The DNS323 rev B1 has flag to indicate the system is up.
 695                  * Without this flag set, power LED will flash and cannot be
 696                  * controlled via leds-gpio.
 697                  */
 698                 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
 699                         gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
 700
 701                 /* Poweroff GPIO */
 702                 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 703                     gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 704                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 705                 pm_power_off = dns323b_power_off;
 706                 break;
 707         case DNS323_REV_C1:
 708                 /* 5182 built-in SATA init */
 709                 orion5x_sata_init(&dns323_sata_data);
 710
 711                 /* Poweroff GPIO */
 712                 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 713                     gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
 714                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 715                 pm_power_off = dns323c_power_off;
 716
 717                 /* Now, -this- should theorically be done by the sata_mv driver
 718                  * once I figure out what's going on there. Maybe the behaviour
 719                  * of the LEDs should be somewhat passed via the platform_data.
 720                  * for now, just whack the register and make the LEDs happy
 721                  *
 722                  * Note: AFAIK, rev B1 needs the same treatement but I'll let
 723                  * somebody else test it.
 724                  */
 725                 writel(0x5, ORION5X_SATA_VIRT_BASE | 0x2c);
 726                 break;
 727         }
 728 }
 729
 730 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
 731 MACHINE_START(DNS323, "D-Link DNS-323")
 732         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 733         .boot_params    = 0x00000100,
 734         .init_machine   = dns323_init,
 735         .map_io         = orion5x_map_io,
 736         .init_early     = orion5x_init_early,
 737         .init_irq       = orion5x_init_irq,
 738         .timer          = &orion5x_timer,
 739         .fixup          = tag_fixup_mem32,
 740 MACHINE_END