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 #include <linux/gpio.h>
  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/mach/arch.h>
  34 #include <asm/mach/pci.h>
  35 #include <asm/system_info.h>
  36 #include <plat/orion-gpio.h>
  37 #include "orion5x.h"
  38 #include "common.h"
  39 #include "mpp.h"
  40
  41 /* Rev A1 and B1 */
  42 #define DNS323_GPIO_LED_RIGHT_AMBER     1
  43 #define DNS323_GPIO_LED_LEFT_AMBER      2
  44 #define DNS323_GPIO_SYSTEM_UP           3
  45 #define DNS323_GPIO_LED_POWER1          4
  46 #define DNS323_GPIO_LED_POWER2          5
  47 #define DNS323_GPIO_OVERTEMP            6
  48 #define DNS323_GPIO_RTC                 7
  49 #define DNS323_GPIO_POWER_OFF           8
  50 #define DNS323_GPIO_KEY_POWER           9
  51 #define DNS323_GPIO_KEY_RESET           10
  52
  53 /* Rev C1 */
  54 #define DNS323C_GPIO_KEY_POWER          1
  55 #define DNS323C_GPIO_POWER_OFF          2
  56 #define DNS323C_GPIO_LED_RIGHT_AMBER    8
  57 #define DNS323C_GPIO_LED_LEFT_AMBER     9
  58 #define DNS323C_GPIO_LED_POWER          17
  59 #define DNS323C_GPIO_FAN_BIT1           18
  60 #define DNS323C_GPIO_FAN_BIT0           19
  61
  62 /* Exposed to userspace, do not change */
  63 enum {
  64         DNS323_REV_A1,  /* 0 */
  65         DNS323_REV_B1,  /* 1 */
  66         DNS323_REV_C1,  /* 2 */
  67 };
  68
  69
  70 /****************************************************************************
  71  * PCI setup
  72  */
  73
  74 static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  75 {
  76         int irq;
  77
  78         /*
  79          * Check for devices with hard-wired IRQs.
  80          */
  81         irq = orion5x_pci_map_irq(dev, slot, pin);
  82         if (irq != -1)
  83                 return irq;
  84
  85         return -1;
  86 }
  87
  88 static struct hw_pci dns323_pci __initdata = {
  89         .nr_controllers = 2,
  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: %pM\n", addr);
 240
 241         memcpy(dns323_eth_data.mac_addr, addr, 6);
 242
 243         return 0;
 244
 245 error_fail:
 246         iounmap(mac_page);
 247         return -EINVAL;
 248 }
 249
 250 /****************************************************************************
 251  * GPIO LEDs (simple - doesn't use hardware blinking support)
 252  */
 253
 254 static struct gpio_led dns323ab_leds[] = {
 255         {
 256                 .name = "power:blue",
 257                 .gpio = DNS323_GPIO_LED_POWER2,
 258                 .default_trigger = "default-on",
 259         }, {
 260                 .name = "right:amber",
 261                 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
 262                 .active_low = 1,
 263         }, {
 264                 .name = "left:amber",
 265                 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
 266                 .active_low = 1,
 267         },
 268 };
 269
 270
 271 static struct gpio_led dns323c_leds[] = {
 272         {
 273                 .name = "power:blue",
 274                 .gpio = DNS323C_GPIO_LED_POWER,
 275                 .default_trigger = "timer",
 276                 .active_low = 1,
 277         }, {
 278                 .name = "right:amber",
 279                 .gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
 280                 .active_low = 1,
 281         }, {
 282                 .name = "left:amber",
 283                 .gpio = DNS323C_GPIO_LED_LEFT_AMBER,
 284                 .active_low = 1,
 285         },
 286 };
 287
 288
 289 static struct gpio_led_platform_data dns323ab_led_data = {
 290         .num_leds       = ARRAY_SIZE(dns323ab_leds),
 291         .leds           = dns323ab_leds,
 292         .gpio_blink_set = orion_gpio_led_blink_set,
 293 };
 294
 295 static struct gpio_led_platform_data dns323c_led_data = {
 296         .num_leds       = ARRAY_SIZE(dns323c_leds),
 297         .leds           = dns323c_leds,
 298         .gpio_blink_set = orion_gpio_led_blink_set,
 299 };
 300
 301 static struct platform_device dns323_gpio_leds = {
 302         .name           = "leds-gpio",
 303         .id             = -1,
 304         .dev            = {
 305                 .platform_data  = &dns323ab_led_data,
 306         },
 307 };
 308
 309 /****************************************************************************
 310  * GPIO Attached Keys
 311  */
 312
 313 static struct gpio_keys_button dns323ab_buttons[] = {
 314         {
 315                 .code           = KEY_RESTART,
 316                 .gpio           = DNS323_GPIO_KEY_RESET,
 317                 .desc           = "Reset Button",
 318                 .active_low     = 1,
 319         }, {
 320                 .code           = KEY_POWER,
 321                 .gpio           = DNS323_GPIO_KEY_POWER,
 322                 .desc           = "Power Button",
 323                 .active_low     = 1,
 324         },
 325 };
 326
 327 static struct gpio_keys_platform_data dns323ab_button_data = {
 328         .buttons        = dns323ab_buttons,
 329         .nbuttons       = ARRAY_SIZE(dns323ab_buttons),
 330 };
 331
 332 static struct gpio_keys_button dns323c_buttons[] = {
 333         {
 334                 .code           = KEY_POWER,
 335                 .gpio           = DNS323C_GPIO_KEY_POWER,
 336                 .desc           = "Power Button",
 337                 .active_low     = 1,
 338         },
 339 };
 340
 341 static struct gpio_keys_platform_data dns323c_button_data = {
 342         .buttons        = dns323c_buttons,
 343         .nbuttons       = ARRAY_SIZE(dns323c_buttons),
 344 };
 345
 346 static struct platform_device dns323_button_device = {
 347         .name           = "gpio-keys",
 348         .id             = -1,
 349         .num_resources  = 0,
 350         .dev            = {
 351                 .platform_data  = &dns323ab_button_data,
 352         },
 353 };
 354
 355 /*****************************************************************************
 356  * SATA
 357  */
 358 static struct mv_sata_platform_data dns323_sata_data = {
 359        .n_ports        = 2,
 360 };
 361
 362 /****************************************************************************
 363  * General Setup
 364  */
 365 static unsigned int dns323a_mpp_modes[] __initdata = {
 366         MPP0_PCIE_RST_OUTn,
 367         MPP1_GPIO,              /* right amber LED (sata ch0) */
 368         MPP2_GPIO,              /* left amber LED (sata ch1) */
 369         MPP3_UNUSED,
 370         MPP4_GPIO,              /* power button LED */
 371         MPP5_GPIO,              /* power button LED */
 372         MPP6_GPIO,              /* GMT G751-2f overtemp */
 373         MPP7_GPIO,              /* M41T80 nIRQ/OUT/SQW */
 374         MPP8_GPIO,              /* triggers power off */
 375         MPP9_GPIO,              /* power button switch */
 376         MPP10_GPIO,             /* reset button switch */
 377         MPP11_UNUSED,
 378         MPP12_UNUSED,
 379         MPP13_UNUSED,
 380         MPP14_UNUSED,
 381         MPP15_UNUSED,
 382         MPP16_UNUSED,
 383         MPP17_UNUSED,
 384         MPP18_UNUSED,
 385         MPP19_UNUSED,
 386         0,
 387 };
 388
 389 static unsigned int dns323b_mpp_modes[] __initdata = {
 390         MPP0_UNUSED,
 391         MPP1_GPIO,              /* right amber LED (sata ch0) */
 392         MPP2_GPIO,              /* left amber LED (sata ch1) */
 393         MPP3_GPIO,              /* system up flag */
 394         MPP4_GPIO,              /* power button LED */
 395         MPP5_GPIO,              /* power button LED */
 396         MPP6_GPIO,              /* GMT G751-2f overtemp */
 397         MPP7_GPIO,              /* M41T80 nIRQ/OUT/SQW */
 398         MPP8_GPIO,              /* triggers power off */
 399         MPP9_GPIO,              /* power button switch */
 400         MPP10_GPIO,             /* reset button switch */
 401         MPP11_UNUSED,
 402         MPP12_SATA_LED,
 403         MPP13_SATA_LED,
 404         MPP14_SATA_LED,
 405         MPP15_SATA_LED,
 406         MPP16_UNUSED,
 407         MPP17_UNUSED,
 408         MPP18_UNUSED,
 409         MPP19_UNUSED,
 410         0,
 411 };
 412
 413 static unsigned int dns323c_mpp_modes[] __initdata = {
 414         MPP0_GPIO,              /* ? input */
 415         MPP1_GPIO,              /* input power switch (0 = pressed) */
 416         MPP2_GPIO,              /* output power off */
 417         MPP3_UNUSED,            /* ? output */
 418         MPP4_UNUSED,            /* ? output */
 419         MPP5_UNUSED,            /* ? output */
 420         MPP6_UNUSED,            /* ? output */
 421         MPP7_UNUSED,            /* ? output */
 422         MPP8_GPIO,              /* i/o right amber LED */
 423         MPP9_GPIO,              /* i/o left amber LED */
 424         MPP10_GPIO,             /* input */
 425         MPP11_UNUSED,
 426         MPP12_SATA_LED,
 427         MPP13_SATA_LED,
 428         MPP14_SATA_LED,
 429         MPP15_SATA_LED,
 430         MPP16_UNUSED,
 431         MPP17_GPIO,             /* power button LED */
 432         MPP18_GPIO,             /* fan speed bit 0 */
 433         MPP19_GPIO,             /* fan speed bit 1 */
 434         0,
 435 };
 436
 437 /* Rev C1 Fan speed notes:
 438  *
 439  * The fan is controlled by 2 GPIOs on this board. The settings
 440  * of the bits is as follow:
 441  *
 442  *  GPIO 18    GPIO 19    Fan
 443  *
 444  *    0          0        stopped
 445  *    0          1        low speed
 446  *    1          0        high speed
 447  *    1          1        don't do that (*)
 448  *
 449  * (*) I think the two bits control two feed-in resistors into a fixed
 450  *     PWN circuit, setting both bits will basically go a 'bit' faster
 451  *     than high speed, but d-link doesn't do it and you may get out of
 452  *     HW spec so don't do it.
 453  */
 454
 455 /*
 456  * On the DNS-323 A1 and B1 the following devices are attached via I2C:
 457  *
 458  *  i2c addr | chip        | description
 459  *  0x3e     | GMT G760Af  | fan speed PWM controller
 460  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 461  *  0x68     | ST M41T80   | RTC w/ alarm
 462  */
 463 static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
 464         {
 465                 I2C_BOARD_INFO("g760a", 0x3e),
 466         }, {
 467                 I2C_BOARD_INFO("lm75", 0x48),
 468         }, {
 469                 I2C_BOARD_INFO("m41t80", 0x68),
 470         },
 471 };
 472
 473 /*
 474  * On the DNS-323 C1 the following devices are attached via I2C:
 475  *
 476  *  i2c addr | chip        | description
 477  *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 478  *  0x68     | ST M41T80   | RTC w/ alarm
 479  */
 480 static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
 481         {
 482                 I2C_BOARD_INFO("lm75", 0x48),
 483         }, {
 484                 I2C_BOARD_INFO("m41t80", 0x68),
 485         },
 486 };
 487
 488 /* DNS-323 rev. A specific power off method */
 489 static void dns323a_power_off(void)
 490 {
 491         pr_info("DNS-323: Triggering power-off...\n");
 492         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 493 }
 494
 495 /* DNS-323 rev B specific power off method */
 496 static void dns323b_power_off(void)
 497 {
 498         pr_info("DNS-323: Triggering power-off...\n");
 499         /* Pin has to be changed to 1 and back to 0 to do actual power off. */
 500         gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
 501         mdelay(100);
 502         gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
 503 }
 504
 505 /* DNS-323 rev. C specific power off method */
 506 static void dns323c_power_off(void)
 507 {
 508         pr_info("DNS-323: Triggering power-off...\n");
 509         gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
 510 }
 511
 512 static int dns323c_phy_fixup(struct phy_device *phy)
 513 {
 514         phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
 515
 516         return 0;
 517 }
 518
 519 static int __init dns323_identify_rev(void)
 520 {
 521         u32 dev, rev, i, reg;
 522
 523         pr_debug("DNS-323: Identifying board ... \n");
 524
 525         /* Rev A1 has a 5181 */
 526         orion5x_pcie_id(&dev, &rev);
 527         if (dev == MV88F5181_DEV_ID) {
 528                 pr_debug("DNS-323: 5181 found, board is A1\n");
 529                 return DNS323_REV_A1;
 530         }
 531         pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
 532
 533         /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
 534          * a bit gross but we want to do that without links into the eth
 535          * driver so let's poke at it directly. We default to rev B1 in
 536          * case the accesses fail
 537          */
 538
 539 #define ETH_SMI_REG             (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
 540 #define  SMI_BUSY               0x10000000
 541 #define  SMI_READ_VALID         0x08000000
 542 #define  SMI_OPCODE_READ        0x04000000
 543 #define  SMI_OPCODE_WRITE       0x00000000
 544
 545         for (i = 0; i < 1000; i++) {
 546                 reg = readl(ETH_SMI_REG);
 547                 if (!(reg & SMI_BUSY))
 548                         break;
 549         }
 550         if (i >= 1000) {
 551                 pr_warn("DNS-323: Timeout accessing PHY, assuming rev B1\n");
 552                 return DNS323_REV_B1;
 553         }
 554         writel((3 << 21)        /* phy ID reg */ |
 555                (8 << 16)        /* phy addr */ |
 556                SMI_OPCODE_READ, ETH_SMI_REG);
 557         for (i = 0; i < 1000; i++) {
 558                 reg = readl(ETH_SMI_REG);
 559                 if (reg & SMI_READ_VALID)
 560                         break;
 561         }
 562         if (i >= 1000) {
 563                 pr_warn("DNS-323: Timeout reading PHY, assuming rev B1\n");
 564                 return DNS323_REV_B1;
 565         }
 566         pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
 567
 568         /* Note: the Marvell tools mask the ID with 0x3f0 before comparison
 569          * but I don't see that making a difference here, at least with
 570          * any known Marvell PHY ID
 571          */
 572         switch(reg & 0xfff0) {
 573         case 0x0cc0: /* MV88E1111 */
 574                 return DNS323_REV_B1;
 575         case 0x0e10: /* MV88E1118 */
 576                 return DNS323_REV_C1;
 577         default:
 578                 pr_warn("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
 579                         reg & 0xffff);
 580         }
 581         return DNS323_REV_B1;
 582 }
 583
 584 static void __init dns323_init(void)
 585 {
 586         /* Setup basic Orion functions. Need to be called early. */
 587         orion5x_init();
 588
 589         /* Identify revision */
 590         system_rev = dns323_identify_rev();
 591         pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
 592
 593         /* Just to be tricky, the 5182 has a completely different
 594          * set of MPP modes to the 5181.
 595          */
 596         switch(system_rev) {
 597         case DNS323_REV_A1:
 598                 orion5x_mpp_conf(dns323a_mpp_modes);
 599                 writel(0, MPP_DEV_CTRL);                /* DEV_D[31:16] */
 600                 break;
 601         case DNS323_REV_B1:
 602                 orion5x_mpp_conf(dns323b_mpp_modes);
 603                 break;
 604         case DNS323_REV_C1:
 605                 orion5x_mpp_conf(dns323c_mpp_modes);
 606                 break;
 607         }
 608
 609         /* setup flash mapping
 610          * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
 611          */
 612         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 613                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 614                                     DNS323_NOR_BOOT_BASE,
 615                                     DNS323_NOR_BOOT_SIZE);
 616         platform_device_register(&dns323_nor_flash);
 617
 618         /* Sort out LEDs, Buttons and i2c devices */
 619         switch(system_rev) {
 620         case DNS323_REV_A1:
 621                 /* The 5181 power LED is active low and requires
 622                  * DNS323_GPIO_LED_POWER1 to also be low.
 623                  */
 624                  dns323ab_leds[0].active_low = 1;
 625                  gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
 626                  gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
 627                 /* Fall through */
 628         case DNS323_REV_B1:
 629                 i2c_register_board_info(0, dns323ab_i2c_devices,
 630                                 ARRAY_SIZE(dns323ab_i2c_devices));
 631                 break;
 632         case DNS323_REV_C1:
 633                 /* Hookup LEDs & Buttons */
 634                 dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
 635                 dns323_button_device.dev.platform_data = &dns323c_button_data;
 636
 637                 /* Hookup i2c devices and fan driver */
 638                 i2c_register_board_info(0, dns323c_i2c_devices,
 639                                 ARRAY_SIZE(dns323c_i2c_devices));
 640                 platform_device_register_simple("dns323c-fan", 0, NULL, 0);
 641
 642                 /* Register fixup for the PHY LEDs */
 643                 if (!IS_BUILTIN(CONFIG_PHYLIB))
 644                         break;
 645                 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
 646                                            MARVELL_PHY_ID_MASK,
 647                                            dns323c_phy_fixup);
 648         }
 649
 650         platform_device_register(&dns323_gpio_leds);
 651         platform_device_register(&dns323_button_device);
 652
 653         /*
 654          * Configure peripherals.
 655          */
 656         if (dns323_read_mac_addr() < 0)
 657                 printk("DNS-323: Failed to read MAC address\n");
 658         orion5x_ehci0_init();
 659         orion5x_eth_init(&dns323_eth_data);
 660         orion5x_i2c_init();
 661         orion5x_uart0_init();
 662
 663         /* Remaining GPIOs */
 664         switch(system_rev) {
 665         case DNS323_REV_A1:
 666                 /* Poweroff GPIO */
 667                 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 668                     gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 669                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 670                 pm_power_off = dns323a_power_off;
 671                 break;
 672         case DNS323_REV_B1:
 673                 /* 5182 built-in SATA init */
 674                 orion5x_sata_init(&dns323_sata_data);
 675
 676                 /* The DNS323 rev B1 has flag to indicate the system is up.
 677                  * Without this flag set, power LED will flash and cannot be
 678                  * controlled via leds-gpio.
 679                  */
 680                 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
 681                         gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
 682
 683                 /* Poweroff GPIO */
 684                 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 685                     gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
 686                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 687                 pm_power_off = dns323b_power_off;
 688                 break;
 689         case DNS323_REV_C1:
 690                 /* 5182 built-in SATA init */
 691                 orion5x_sata_init(&dns323_sata_data);
 692
 693                 /* Poweroff GPIO */
 694                 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
 695                     gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
 696                         pr_err("DNS-323: failed to setup power-off GPIO\n");
 697                 pm_power_off = dns323c_power_off;
 698
 699                 /* Now, -this- should theorically be done by the sata_mv driver
 700                  * once I figure out what's going on there. Maybe the behaviour
 701                  * of the LEDs should be somewhat passed via the platform_data.
 702                  * for now, just whack the register and make the LEDs happy
 703                  *
 704                  * Note: AFAIK, rev B1 needs the same treatement but I'll let
 705                  * somebody else test it.
 706                  */
 707                 writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c);
 708                 break;
 709         }
 710 }
 711
 712 /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
 713 MACHINE_START(DNS323, "D-Link DNS-323")
 714         /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
 715         .atag_offset    = 0x100,
 716         .nr_irqs        = ORION5X_NR_IRQS,
 717         .init_machine   = dns323_init,
 718         .map_io         = orion5x_map_io,
 719         .init_early     = orion5x_init_early,
 720         .init_irq       = orion5x_init_irq,
 721         .init_time      = orion5x_timer_init,
 722         .fixup          = tag_fixup_mem32,
 723         .restart        = orion5x_restart,
 724 MACHINE_END