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dns323-setup.c

/*
 * arch/arm/mach-orion5x/dns323-setup.c
 *
 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
 *
 * Support for HW Rev C1:
 *
 * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/phy.h>
#include <linux/marvell_phy.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"

/* Rev A1 and B1 */
#define DNS323_GPIO_LED_RIGHT_AMBER 1
#define DNS323_GPIO_LED_LEFT_AMBER  2
#define DNS323_GPIO_SYSTEM_UP       3
#define DNS323_GPIO_LED_POWER1            4
#define DNS323_GPIO_LED_POWER2            5
#define DNS323_GPIO_OVERTEMP        6
#define DNS323_GPIO_RTC             7
#define DNS323_GPIO_POWER_OFF       8
#define DNS323_GPIO_KEY_POWER       9
#define DNS323_GPIO_KEY_RESET       10

/* Rev C1 */
#define DNS323C_GPIO_KEY_POWER            1
#define DNS323C_GPIO_POWER_OFF            2
#define DNS323C_GPIO_LED_RIGHT_AMBER      8
#define DNS323C_GPIO_LED_LEFT_AMBER 9
#define DNS323C_GPIO_LED_POWER            17
#define DNS323C_GPIO_FAN_BIT1       18
#define DNS323C_GPIO_FAN_BIT0       19

/* Exposed to userspace, do not change */
enum {
      DNS323_REV_A1,    /* 0 */
      DNS323_REV_B1,    /* 1 */
      DNS323_REV_C1,    /* 2 */
};


/****************************************************************************
 * PCI setup
 */

static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
      int irq;

      /*
       * Check for devices with hard-wired IRQs.
       */
      irq = orion5x_pci_map_irq(dev, slot, pin);
      if (irq != -1)
            return irq;

      return -1;
}

static struct hw_pci dns323_pci __initdata = {
      .nr_controllers = 2,
      .swizzle    = pci_std_swizzle,
      .setup            = orion5x_pci_sys_setup,
      .scan       = orion5x_pci_sys_scan_bus,
      .map_irq    = dns323_pci_map_irq,
};

static int __init dns323_pci_init(void)
{
      /* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
       * gets in the way of initialising the SATA controller.
       */
      if (machine_is_dns323() && system_rev == DNS323_REV_A1)
            pci_common_init(&dns323_pci);

      return 0;
}

subsys_initcall(dns323_pci_init);

/****************************************************************************
 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
 *
 * Layout as used by D-Link:
 *  0x00000000-0x00010000 : "MTD1"
 *  0x00010000-0x00020000 : "MTD2"
 *  0x00020000-0x001a0000 : "Linux Kernel"
 *  0x001a0000-0x007d0000 : "File System"
 *  0x007d0000-0x00800000 : "u-boot"
 */

#define DNS323_NOR_BOOT_BASE 0xf4000000
#define DNS323_NOR_BOOT_SIZE SZ_8M

static struct mtd_partition dns323_partitions[] = {
      {
            .name = "MTD1",
            .size = 0x00010000,
            .offset     = 0,
      }, {
            .name = "MTD2",
            .size = 0x00010000,
            .offset = 0x00010000,
      }, {
            .name = "Linux Kernel",
            .size = 0x00180000,
            .offset     = 0x00020000,
      }, {
            .name = "File System",
            .size = 0x00630000,
            .offset     = 0x001A0000,
      }, {
            .name = "u-boot",
            .size = 0x00030000,
            .offset     = 0x007d0000,
      },
};

static struct physmap_flash_data dns323_nor_flash_data = {
      .width            = 1,
      .parts            = dns323_partitions,
      .nr_parts   = ARRAY_SIZE(dns323_partitions)
};

static struct resource dns323_nor_flash_resource = {
      .flags            = IORESOURCE_MEM,
      .start            = DNS323_NOR_BOOT_BASE,
      .end        = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
};

static struct platform_device dns323_nor_flash = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev        = {
            .platform_data    = &dns323_nor_flash_data,
      },
      .resource   = &dns323_nor_flash_resource,
      .num_resources    = 1,
};

/****************************************************************************
 * Ethernet
 */

static struct mv643xx_eth_platform_data dns323_eth_data = {
      .phy_addr = MV643XX_ETH_PHY_ADDR(8),
};

/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
 * functions be kept somewhere?
 */
static int __init dns323_parse_hex_nibble(char n)
{
      if (n >= '0' && n <= '9')
            return n - '0';

      if (n >= 'A' && n <= 'F')
            return n - 'A' + 10;

      if (n >= 'a' && n <= 'f')
            return n - 'a' + 10;

      return -1;
}

static int __init dns323_parse_hex_byte(const char *b)
{
      int hi;
      int lo;

      hi = dns323_parse_hex_nibble(b[0]);
      lo = dns323_parse_hex_nibble(b[1]);

      if (hi < 0 || lo < 0)
            return -1;

      return (hi << 4) | lo;
}

static int __init dns323_read_mac_addr(void)
{
      u_int8_t addr[6];
      int i;
      char *mac_page;

      /* MAC address is stored as a regular ol' string in /dev/mtdblock4
       * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
       */
      mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
      if (!mac_page)
            return -ENOMEM;

      /* Sanity check the string we're looking at */
      for (i = 0; i < 5; i++) {
            if (*(mac_page + (i * 3) + 2) != ':') {
                  goto error_fail;
            }
      }

      for (i = 0; i < 6; i++) {
            int byte;

            byte = dns323_parse_hex_byte(mac_page + (i * 3));
            if (byte < 0) {
                  goto error_fail;
            }

            addr[i] = byte;
      }

      iounmap(mac_page);
      printk("DNS-323: Found ethernet MAC address: ");
      for (i = 0; i < 6; i++)
            printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");

      memcpy(dns323_eth_data.mac_addr, addr, 6);

      return 0;

error_fail:
      iounmap(mac_page);
      return -EINVAL;
}

/****************************************************************************
 * GPIO LEDs (simple - doesn't use hardware blinking support)
 */

#define ORION_BLINK_HALF_PERIOD 100 /* ms */

static int dns323_gpio_blink_set(unsigned gpio, int state,
      unsigned long *delay_on, unsigned long *delay_off)
{

      if (delay_on && delay_off && !*delay_on && !*delay_off)
            *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;

      switch(state) {
      case GPIO_LED_NO_BLINK_LOW:
      case GPIO_LED_NO_BLINK_HIGH:
            orion_gpio_set_blink(gpio, 0);
            gpio_set_value(gpio, state);
            break;
      case GPIO_LED_BLINK:
            orion_gpio_set_blink(gpio, 1);
      }
      return 0;
}

static struct gpio_led dns323ab_leds[] = {
      {
            .name = "power:blue",
            .gpio = DNS323_GPIO_LED_POWER2,
            .default_trigger = "default-on",
      }, {
            .name = "right:amber",
            .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
            .active_low = 1,
      }, {
            .name = "left:amber",
            .gpio = DNS323_GPIO_LED_LEFT_AMBER,
            .active_low = 1,
      },
};


static struct gpio_led dns323c_leds[] = {
      {
            .name = "power:blue",
            .gpio = DNS323C_GPIO_LED_POWER,
            .default_trigger = "timer",
            .active_low = 1,
      }, {
            .name = "right:amber",
            .gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
            .active_low = 1,
      }, {
            .name = "left:amber",
            .gpio = DNS323C_GPIO_LED_LEFT_AMBER,
            .active_low = 1,
      },
};


static struct gpio_led_platform_data dns323ab_led_data = {
      .num_leds   = ARRAY_SIZE(dns323ab_leds),
      .leds       = dns323ab_leds,
      .gpio_blink_set = dns323_gpio_blink_set,
};

static struct gpio_led_platform_data dns323c_led_data = {
      .num_leds   = ARRAY_SIZE(dns323c_leds),
      .leds       = dns323c_leds,
      .gpio_blink_set = dns323_gpio_blink_set,
};

static struct platform_device dns323_gpio_leds = {
      .name       = "leds-gpio",
      .id         = -1,
      .dev        = {
            .platform_data    = &dns323ab_led_data,
      },
};

/****************************************************************************
 * GPIO Attached Keys
 */

static struct gpio_keys_button dns323ab_buttons[] = {
      {
            .code       = KEY_RESTART,
            .gpio       = DNS323_GPIO_KEY_RESET,
            .desc       = "Reset Button",
            .active_low = 1,
      }, {
            .code       = KEY_POWER,
            .gpio       = DNS323_GPIO_KEY_POWER,
            .desc       = "Power Button",
            .active_low = 1,
      },
};

static struct gpio_keys_platform_data dns323ab_button_data = {
      .buttons    = dns323ab_buttons,
      .nbuttons   = ARRAY_SIZE(dns323ab_buttons),
};

static struct gpio_keys_button dns323c_buttons[] = {
      {
            .code       = KEY_POWER,
            .gpio       = DNS323C_GPIO_KEY_POWER,
            .desc       = "Power Button",
            .active_low = 1,
      },
};

static struct gpio_keys_platform_data dns323c_button_data = {
      .buttons    = dns323c_buttons,
      .nbuttons   = ARRAY_SIZE(dns323c_buttons),
};

static struct platform_device dns323_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &dns323ab_button_data,
      },
};

/*****************************************************************************
 * SATA
 */
static struct mv_sata_platform_data dns323_sata_data = {
       .n_ports        = 2,
};

/****************************************************************************
 * General Setup
 */
static struct orion5x_mpp_mode dns323a_mpp_modes[] __initdata = {
      {  0, MPP_PCIE_RST_OUTn },
      {  1, MPP_GPIO },       /* right amber LED (sata ch0) */
      {  2, MPP_GPIO },       /* left amber LED (sata ch1) */
      {  3, MPP_UNUSED },
      {  4, MPP_GPIO },       /* power button LED */
      {  5, MPP_GPIO },       /* power button LED */
      {  6, MPP_GPIO },       /* GMT G751-2f overtemp */
      {  7, MPP_GPIO },       /* M41T80 nIRQ/OUT/SQW */
      {  8, MPP_GPIO },       /* triggers power off */
      {  9, MPP_GPIO },       /* power button switch */
      { 10, MPP_GPIO },       /* reset button switch */
      { 11, MPP_UNUSED },
      { 12, MPP_UNUSED },
      { 13, MPP_UNUSED },
      { 14, MPP_UNUSED },
      { 15, MPP_UNUSED },
      { 16, MPP_UNUSED },
      { 17, MPP_UNUSED },
      { 18, MPP_UNUSED },
      { 19, MPP_UNUSED },
      { -1 },
};

static struct orion5x_mpp_mode dns323b_mpp_modes[] __initdata = {
      {  0, MPP_UNUSED },
      {  1, MPP_GPIO },       /* right amber LED (sata ch0) */
      {  2, MPP_GPIO },       /* left amber LED (sata ch1) */
      {  3, MPP_GPIO },       /* system up flag */
      {  4, MPP_GPIO },       /* power button LED */
      {  5, MPP_GPIO },       /* power button LED */
      {  6, MPP_GPIO },       /* GMT G751-2f overtemp */
      {  7, MPP_GPIO },       /* M41T80 nIRQ/OUT/SQW */
      {  8, MPP_GPIO },       /* triggers power off */
      {  9, MPP_GPIO },       /* power button switch */
      { 10, MPP_GPIO },       /* reset button switch */
      { 11, MPP_UNUSED },
      { 12, MPP_SATA_LED },
      { 13, MPP_SATA_LED },
      { 14, MPP_SATA_LED },
      { 15, MPP_SATA_LED },
      { 16, MPP_UNUSED },
      { 17, MPP_UNUSED },
      { 18, MPP_UNUSED },
      { 19, MPP_UNUSED },
      { -1 },
};

static struct orion5x_mpp_mode dns323c_mpp_modes[] __initdata = {
      {  0, MPP_GPIO },       /* ? input */
      {  1, MPP_GPIO },       /* input power switch (0 = pressed) */
      {  2, MPP_GPIO },       /* output power off */
      {  3, MPP_UNUSED },           /* ? output */
      {  4, MPP_UNUSED },           /* ? output */
      {  5, MPP_UNUSED },           /* ? output */
      {  6, MPP_UNUSED },           /* ? output */
      {  7, MPP_UNUSED },           /* ? output */
      {  8, MPP_GPIO },       /* i/o right amber LED */
      {  9, MPP_GPIO },       /* i/o left amber LED */
      { 10, MPP_GPIO },       /* input */
      { 11, MPP_UNUSED },
      { 12, MPP_SATA_LED },
      { 13, MPP_SATA_LED },
      { 14, MPP_SATA_LED },
      { 15, MPP_SATA_LED },
      { 16, MPP_UNUSED },
      { 17, MPP_GPIO },       /* power button LED */
      { 18, MPP_GPIO },       /* fan speed bit 0 */
      { 19, MPP_GPIO },       /* fan speed bit 1 */
      { -1 },
};

/* Rev C1 Fan speed notes:
 *
 * The fan is controlled by 2 GPIOs on this board. The settings
 * of the bits is as follow:
 *
 *  GPIO 18    GPIO 19    Fan
 *
 *    0          0        stopped
 *    0          1        low speed
 *    1          0        high speed
 *    1          1        don't do that (*)
 *
 * (*) I think the two bits control two feed-in resistors into a fixed
 *     PWN circuit, setting both bits will basically go a 'bit' faster
 *     than high speed, but d-link doesn't do it and you may get out of
 *     HW spec so don't do it.
 */

/*
 * On the DNS-323 A1 and B1 the following devices are attached via I2C:
 *
 *  i2c addr | chip        | description
 *  0x3e     | GMT G760Af  | fan speed PWM controller
 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 *  0x68     | ST M41T80   | RTC w/ alarm
 */
static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
      {
            I2C_BOARD_INFO("g760a", 0x3e),
      }, {
            I2C_BOARD_INFO("lm75", 0x48),
      }, {
            I2C_BOARD_INFO("m41t80", 0x68),
      },
};

/*
 * On the DNS-323 C1 the following devices are attached via I2C:
 *
 *  i2c addr | chip        | description
 *  0x48     | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
 *  0x68     | ST M41T80   | RTC w/ alarm
 */
static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
      {
            I2C_BOARD_INFO("lm75", 0x48),
      }, {
            I2C_BOARD_INFO("m41t80", 0x68),
      },
};

/* DNS-323 rev. A specific power off method */
static void dns323a_power_off(void)
{
      pr_info("DNS-323: Triggering power-off...\n");
      gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
}

/* DNS-323 rev B specific power off method */
static void dns323b_power_off(void)
{
      pr_info("DNS-323: Triggering power-off...\n");
      /* Pin has to be changed to 1 and back to 0 to do actual power off. */
      gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
      mdelay(100);
      gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
}

/* DNS-323 rev. C specific power off method */
static void dns323c_power_off(void)
{
      pr_info("DNS-323: Triggering power-off...\n");
      gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
}

static int dns323c_phy_fixup(struct phy_device *phy)
{
      phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;

      return 0;
}

static int __init dns323_identify_rev(void)
{
      u32 dev, rev, i, reg;

      pr_debug("DNS-323: Identifying board ... \n");

      /* Rev A1 has a 5181 */
      orion5x_pcie_id(&dev, &rev);
      if (dev == MV88F5181_DEV_ID) {
            pr_debug("DNS-323: 5181 found, board is A1\n");
            return DNS323_REV_A1;
      }
      pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");

      /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
       * a bit gross but we want to do that without links into the eth
       * driver so let's poke at it directly. We default to rev B1 in
       * case the accesses fail
       */

#define ETH_SMI_REG           (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
#define  SMI_BUSY       0x10000000
#define  SMI_READ_VALID       0x08000000
#define  SMI_OPCODE_READ      0x04000000
#define  SMI_OPCODE_WRITE     0x00000000

      for (i = 0; i < 1000; i++) {
            reg = readl(ETH_SMI_REG);
            if (!(reg & SMI_BUSY))
                  break;
      }
      if (i >= 1000) {
            pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
            return DNS323_REV_B1;
      }
      writel((3 << 21)  /* phy ID reg */ |
             (8 << 16)  /* phy addr */ |
             SMI_OPCODE_READ, ETH_SMI_REG);
      for (i = 0; i < 1000; i++) {
            reg = readl(ETH_SMI_REG);
            if (reg & SMI_READ_VALID)
                  break;
      }
      if (i >= 1000) {
            pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
            return DNS323_REV_B1;
      }
      pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);

      /* Note: the Marvell tools mask the ID with 0x3f0 before comparison
       * but I don't see that making a difference here, at least with
       * any known Marvell PHY ID
       */
      switch(reg & 0xfff0) {
      case 0x0cc0: /* MV88E1111 */
            return DNS323_REV_B1;
      case 0x0e10: /* MV88E1118 */
            return DNS323_REV_C1;
      default:
            pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
                     reg & 0xffff);
      }
      return DNS323_REV_B1;
}

static void __init dns323_init(void)
{
      /* Setup basic Orion functions. Need to be called early. */
      orion5x_init();

      /* Identify revision */
      system_rev = dns323_identify_rev();
      pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);

      /* Just to be tricky, the 5182 has a completely different
       * set of MPP modes to the 5181.
       */
      switch(system_rev) {
      case DNS323_REV_A1:
            orion5x_mpp_conf(dns323a_mpp_modes);
            writel(0, MPP_DEV_CTRL);            /* DEV_D[31:16] */
            break;
      case DNS323_REV_B1:
            orion5x_mpp_conf(dns323b_mpp_modes);
            break;
      case DNS323_REV_C1:
            orion5x_mpp_conf(dns323c_mpp_modes);
            break;
      }

      /* setup flash mapping
       * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
       */
      orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
      platform_device_register(&dns323_nor_flash);

      /* Sort out LEDs, Buttons and i2c devices */
      switch(system_rev) {
      case DNS323_REV_A1:
            /* The 5181 power LED is active low and requires
             * DNS323_GPIO_LED_POWER1 to also be low.
             */
             dns323ab_leds[0].active_low = 1;
             gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
             gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
            /* Fall through */
      case DNS323_REV_B1:
            i2c_register_board_info(0, dns323ab_i2c_devices,
                        ARRAY_SIZE(dns323ab_i2c_devices));
            break;
      case DNS323_REV_C1:
            /* Hookup LEDs & Buttons */
            dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
            dns323_button_device.dev.platform_data = &dns323c_button_data;

            /* Hookup i2c devices and fan driver */
            i2c_register_board_info(0, dns323c_i2c_devices,
                        ARRAY_SIZE(dns323c_i2c_devices));
            platform_device_register_simple("dns323c-fan", 0, NULL, 0);

            /* Register fixup for the PHY LEDs */
            phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
                                 MARVELL_PHY_ID_MASK,
                                 dns323c_phy_fixup);
      }

      platform_device_register(&dns323_gpio_leds);
      platform_device_register(&dns323_button_device);

      /*
       * Configure peripherals.
       */
      if (dns323_read_mac_addr() < 0)
            printk("DNS-323: Failed to read MAC address\n");
      orion5x_ehci0_init();
      orion5x_eth_init(&dns323_eth_data);
      orion5x_i2c_init();
      orion5x_uart0_init();

      /* Remaining GPIOs */
      switch(system_rev) {
      case DNS323_REV_A1:
            /* Poweroff GPIO */
            if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
                gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
                  pr_err("DNS-323: failed to setup power-off GPIO\n");
            pm_power_off = dns323a_power_off;
            break;
      case DNS323_REV_B1:
            /* 5182 built-in SATA init */
            orion5x_sata_init(&dns323_sata_data);

            /* The DNS323 rev B1 has flag to indicate the system is up.
             * Without this flag set, power LED will flash and cannot be
             * controlled via leds-gpio.
             */
            if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
                  gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);

            /* Poweroff GPIO */
            if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
                gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
                  pr_err("DNS-323: failed to setup power-off GPIO\n");
            pm_power_off = dns323b_power_off;
            break;
      case DNS323_REV_C1:
            /* 5182 built-in SATA init */
            orion5x_sata_init(&dns323_sata_data);

            /* Poweroff GPIO */
            if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
                gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
                  pr_err("DNS-323: failed to setup power-off GPIO\n");
            pm_power_off = dns323c_power_off;

            /* Now, -this- should theorically be done by the sata_mv driver
             * once I figure out what's going on there. Maybe the behaviour
             * of the LEDs should be somewhat passed via the platform_data.
             * for now, just whack the register and make the LEDs happy
             *
             * Note: AFAIK, rev B1 needs the same treatement but I'll let
             * somebody else test it.
             */
            writel(0x5, ORION5X_SATA_VIRT_BASE | 0x2c);
            break;
      }
}

/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
MACHINE_START(DNS323, "D-Link DNS-323")
      /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
      .boot_params      = 0x00000100,
      .init_machine     = dns323_init,
      .map_io           = orion5x_map_io,
      .init_irq   = orion5x_init_irq,
      .timer            = &orion5x_timer,
      .fixup            = tag_fixup_mem32,
MACHINE_END

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