Merge branch 'kirkwood/dt' into next/dt2

This was part of the for-next branch earlier but for some reasons
a rebuild of the tree missed it, so I'm putting it back in now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

9 files changed, 130 insertions, 197 deletions

diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index d4d08bd9205b..bd5b10eeeb40 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -92,8 +92,7 @@ static irqreturn_t ams_delta_serio_interrupt(int irq, void *dev_id)
 static int ams_delta_serio_open(struct serio *serio)
 {
         /* enable keyboard */
-        ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR,
-                        AMD_DELTA_LATCH2_KEYBRD_PWR);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_KEYBRD_PWR, 1);
 
         return 0;
 }
@@ -101,9 +100,32 @@ static int ams_delta_serio_open(struct serio *serio)
 static void ams_delta_serio_close(struct serio *serio)
 {
         /* disable keyboard */
-        ams_delta_latch2_write(AMD_DELTA_LATCH2_KEYBRD_PWR, 0);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_KEYBRD_PWR, 0);
 }
 
+static const struct gpio ams_delta_gpios[] __initconst_or_module = {
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_KEYBRD_DATA,
+                .flags  = GPIOF_DIR_IN,
+                .label  = "serio-data",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_KEYBRD_CLK,
+                .flags  = GPIOF_DIR_IN,
+                .label  = "serio-clock",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_KEYBRD_PWR,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "serio-power",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_KEYBRD_DATAOUT,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "serio-dataout",
+        },
+};
+
 static int __init ams_delta_serio_init(void)
 {
         int err;
@@ -123,19 +145,12 @@ static int __init ams_delta_serio_init(void)
         strlcpy(ams_delta_serio->phys, "GPIO/serio0",
                         sizeof(ams_delta_serio->phys));
 
-        err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_DATA, "serio-data");
+        err = gpio_request_array(ams_delta_gpios,
+                                ARRAY_SIZE(ams_delta_gpios));
         if (err) {
-                pr_err("ams_delta_serio: Couldn't request gpio pin for data\n");
+                pr_err("ams_delta_serio: Couldn't request gpio pins\n");
                 goto serio;
         }
-        gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
-
-        err = gpio_request(AMS_DELTA_GPIO_PIN_KEYBRD_CLK, "serio-clock");
-        if (err) {
-                pr_err("ams_delta_serio: couldn't request gpio pin for clock\n");
-                goto gpio_data;
-        }
-        gpio_direction_input(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
 
         err = request_irq(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK),
                         ams_delta_serio_interrupt, IRQ_TYPE_EDGE_RISING,
@@ -143,7 +158,7 @@ static int __init ams_delta_serio_init(void)
         if (err < 0) {
                 pr_err("ams_delta_serio: couldn't request gpio interrupt %d\n",
                                 gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK));
-                goto gpio_clk;
+                goto gpio;
         }
         /*
          * Since GPIO register handling for keyboard clock pin is performed
@@ -157,10 +172,9 @@ static int __init ams_delta_serio_init(void)
         dev_info(&ams_delta_serio->dev, "%s\n", ams_delta_serio->name);
 
         return 0;
-gpio_clk:
-        gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
-gpio_data:
-        gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+gpio:
+        gpio_free_array(ams_delta_gpios,
+                        ARRAY_SIZE(ams_delta_gpios));
 serio:
         kfree(ams_delta_serio);
         return err;
@@ -171,7 +185,7 @@ static void __exit ams_delta_serio_exit(void)
 {
         serio_unregister_port(ams_delta_serio);
         free_irq(OMAP_GPIO_IRQ(AMS_DELTA_GPIO_PIN_KEYBRD_CLK), 0);
-        gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_CLK);
-        gpio_free(AMS_DELTA_GPIO_PIN_KEYBRD_DATA);
+        gpio_free_array(ams_delta_gpios,
+                        ARRAY_SIZE(ams_delta_gpios));
 }
 module_exit(ams_delta_serio_exit);
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 9ca28fced2b9..f5d5c03676f8 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -74,13 +74,6 @@ config LEDS_S3C24XX
           This option enables support for LEDs connected to GPIO lines
           on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
 
-config LEDS_AMS_DELTA
-        tristate "LED Support for the Amstrad Delta (E3)"
-        depends on LEDS_CLASS
-        depends on MACH_AMS_DELTA
-        help
-          This option enables support for the LEDs on Amstrad Delta (E3).
-
 config LEDS_NET48XX
         tristate "LED Support for Soekris net48xx series Error LED"
         depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 1fc6875a8b20..8cab1bb96b5d 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_LEDS_LOCOMO)		+= leds-locomo.o
 obj-$(CONFIG_LEDS_LM3530)               += leds-lm3530.o
 obj-$(CONFIG_LEDS_MIKROTIK_RB532)       += leds-rb532.o
 obj-$(CONFIG_LEDS_S3C24XX)              += leds-s3c24xx.o
-obj-$(CONFIG_LEDS_AMS_DELTA)            += leds-ams-delta.o
 obj-$(CONFIG_LEDS_NET48XX)              += leds-net48xx.o
 obj-$(CONFIG_LEDS_NET5501)              += leds-net5501.o
 obj-$(CONFIG_LEDS_WRAP)                 += leds-wrap.o
diff --git a/drivers/leds/leds-ams-delta.c b/drivers/leds/leds-ams-delta.c
deleted file mode 100644
index 07428357c83f..000000000000
--- a/drivers/leds/leds-ams-delta.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * LEDs driver for Amstrad Delta (E3)
- *
- * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/leds.h>
-#include <plat/board-ams-delta.h>
-
-/*
- * Our context
- */
-struct ams_delta_led {
-        struct led_classdev     cdev;
-        u8                      bitmask;
-};
-
-static void ams_delta_led_set(struct led_classdev *led_cdev,
-                enum led_brightness value)
-{
-        struct ams_delta_led *led_dev =
-                container_of(led_cdev, struct ams_delta_led, cdev);
-
-        if (value)
-                ams_delta_latch1_write(led_dev->bitmask, led_dev->bitmask);
-        else
-                ams_delta_latch1_write(led_dev->bitmask, 0);
-}
-
-static struct ams_delta_led ams_delta_leds[] = {
-        {
-                .cdev           = {
-                        .name           = "ams-delta::camera",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_CAMERA,
-        },
-        {
-                .cdev           = {
-                        .name           = "ams-delta::advert",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_ADVERT,
-        },
-        {
-                .cdev           = {
-                        .name           = "ams-delta::email",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_EMAIL,
-        },
-        {
-                .cdev           = {
-                        .name           = "ams-delta::handsfree",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_HANDSFREE,
-        },
-        {
-                .cdev           = {
-                        .name           = "ams-delta::voicemail",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_VOICEMAIL,
-        },
-        {
-                .cdev           = {
-                        .name           = "ams-delta::voice",
-                        .brightness_set = ams_delta_led_set,
-                },
-                .bitmask        = AMS_DELTA_LATCH1_LED_VOICE,
-        },
-};
-
-static int ams_delta_led_probe(struct platform_device *pdev)
-{
-        int i, ret;
-
-        for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++) {
-                ams_delta_leds[i].cdev.flags |= LED_CORE_SUSPENDRESUME;
-                ret = led_classdev_register(&pdev->dev,
-                                &ams_delta_leds[i].cdev);
-                if (ret < 0)
-                        goto fail;
-        }
-
-        return 0;
-fail:
-        while (--i >= 0)
-                led_classdev_unregister(&ams_delta_leds[i].cdev);
-        return ret;     
-}
-
-static int ams_delta_led_remove(struct platform_device *pdev)
-{
-        int i;
-
-        for (i = 0; i < ARRAY_SIZE(ams_delta_leds); i++)
-                led_classdev_unregister(&ams_delta_leds[i].cdev);
-
-        return 0;
-}
-
-static struct platform_driver ams_delta_led_driver = {
-        .probe          = ams_delta_led_probe,
-        .remove         = ams_delta_led_remove,
-        .driver         = {
-                .name = "ams-delta-led",
-                .owner = THIS_MODULE,
-        },
-};
-
-module_platform_driver(ams_delta_led_driver);
-
-MODULE_AUTHOR("Jonathan McDowell <noodles@earth.li>");
-MODULE_DESCRIPTION("Amstrad Delta LED driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:ams-delta-led");
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 3197e9764fcd..73416951f4c1 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -26,7 +26,7 @@
 #include <asm/io.h>
 #include <mach/hardware.h>
 #include <asm/sizes.h>
-#include <asm/gpio.h>
+#include <linux/gpio.h>
 #include <plat/board-ams-delta.h>
 
 /*
@@ -34,8 +34,6 @@
  */
 static struct mtd_info *ams_delta_mtd = NULL;
 
-#define NAND_MASK (AMS_DELTA_LATCH2_NAND_NRE | AMS_DELTA_LATCH2_NAND_NWE | AMS_DELTA_LATCH2_NAND_CLE | AMS_DELTA_LATCH2_NAND_ALE | AMS_DELTA_LATCH2_NAND_NCE | AMS_DELTA_LATCH2_NAND_NWP)
-
 /*
  * Define partitions for flash devices
  */
@@ -68,10 +66,9 @@ static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte)
 
         writew(0, io_base + OMAP_MPUIO_IO_CNTL);
         writew(byte, this->IO_ADDR_W);
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_NWE, 0);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NWE, 0);
         ndelay(40);
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_NWE,
-                               AMS_DELTA_LATCH2_NAND_NWE);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NWE, 1);
 }
 
 static u_char ams_delta_read_byte(struct mtd_info *mtd)
@@ -80,12 +77,11 @@ static u_char ams_delta_read_byte(struct mtd_info *mtd)
         struct nand_chip *this = mtd->priv;
         void __iomem *io_base = this->priv;
 
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_NRE, 0);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0);
         ndelay(40);
         writew(~0, io_base + OMAP_MPUIO_IO_CNTL);
         res = readw(this->IO_ADDR_R);
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_NRE,
-                               AMS_DELTA_LATCH2_NAND_NRE);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 1);
 
         return res;
 }
@@ -132,15 +128,12 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd,
 {
 
         if (ctrl & NAND_CTRL_CHANGE) {
-                unsigned long bits;
-
-                bits = (~ctrl & NAND_NCE) ? AMS_DELTA_LATCH2_NAND_NCE : 0;
-                bits |= (ctrl & NAND_CLE) ? AMS_DELTA_LATCH2_NAND_CLE : 0;
-                bits |= (ctrl & NAND_ALE) ? AMS_DELTA_LATCH2_NAND_ALE : 0;
-
-                ams_delta_latch2_write(AMS_DELTA_LATCH2_NAND_CLE |
-                                AMS_DELTA_LATCH2_NAND_ALE |
-                                AMS_DELTA_LATCH2_NAND_NCE, bits);
+                gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NCE,
+                                (ctrl & NAND_NCE) == 0);
+                gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_CLE,
+                                (ctrl & NAND_CLE) != 0);
+                gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_ALE,
+                                (ctrl & NAND_ALE) != 0);
         }
 
         if (cmd != NAND_CMD_NONE)
@@ -152,6 +145,39 @@ static int ams_delta_nand_ready(struct mtd_info *mtd)
         return gpio_get_value(AMS_DELTA_GPIO_PIN_NAND_RB);
 }
 
+static const struct gpio _mandatory_gpio[] = {
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_NCE,
+                .flags  = GPIOF_OUT_INIT_HIGH,
+                .label  = "nand_nce",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_NRE,
+                .flags  = GPIOF_OUT_INIT_HIGH,
+                .label  = "nand_nre",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_NWP,
+                .flags  = GPIOF_OUT_INIT_HIGH,
+                .label  = "nand_nwp",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_NWE,
+                .flags  = GPIOF_OUT_INIT_HIGH,
+                .label  = "nand_nwe",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_ALE,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "nand_ale",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_NAND_CLE,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "nand_cle",
+        },
+};
+
 /*
  * Main initialization routine
  */
@@ -223,10 +249,9 @@ static int __devinit ams_delta_init(struct platform_device *pdev)
         platform_set_drvdata(pdev, io_base);
 
         /* Set chip enabled, but  */
-        ams_delta_latch2_write(NAND_MASK, AMS_DELTA_LATCH2_NAND_NRE |
-                                          AMS_DELTA_LATCH2_NAND_NWE |
-                                          AMS_DELTA_LATCH2_NAND_NCE |
-                                          AMS_DELTA_LATCH2_NAND_NWP);
+        err = gpio_request_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
+        if (err)
+                goto out_gpio;
 
         /* Scan to find existence of the device */
         if (nand_scan(ams_delta_mtd, 1)) {
@@ -241,7 +266,10 @@ static int __devinit ams_delta_init(struct platform_device *pdev)
         goto out;
 
  out_mtd:
+        gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
+out_gpio:
         platform_set_drvdata(pdev, NULL);
+        gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
         iounmap(io_base);
 out_release_io:
         release_mem_region(res->start, resource_size(res));
@@ -262,6 +290,8 @@ static int __devexit ams_delta_cleanup(struct platform_device *pdev)
         /* Release resources, unregister device */
         nand_release(ams_delta_mtd);
 
+        gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio));
+        gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB);
         iounmap(io_base);
         release_mem_region(res->start, resource_size(res));
 
diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c
index 768e2edb9678..0dd8421d41c3 100644
--- a/drivers/rtc/rtc-mv.c
+++ b/drivers/rtc/rtc-mv.c
@@ -12,6 +12,7 @@
 #include <linux/bcd.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
 #include <linux/module.h>
@@ -294,11 +295,19 @@ static int __exit mv_rtc_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_OF
+static struct of_device_id rtc_mv_of_match_table[] = {
+        { .compatible = "mrvl,orion-rtc", },
+        {}
+};
+#endif
+
 static struct platform_driver mv_rtc_driver = {
         .remove         = __exit_p(mv_rtc_remove),
         .driver         = {
                 .name   = "rtc-mv",
                 .owner  = THIS_MODULE,
+                .of_match_table = of_match_ptr(rtc_mv_of_match_table),
         },
 };
 
diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 13448c832c44..e496f799b7a9 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -359,11 +359,6 @@ static int orion_spi_setup(struct spi_device *spi)
 
         orion_spi = spi_master_get_devdata(spi->master);
 
-        /* Fix ac timing if required.   */
-        if (orion_spi->spi_info->enable_clock_fix)
-                orion_spi_setbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
-                                  (1 << 14));
-
         if ((spi->max_speed_hz == 0)
                         || (spi->max_speed_hz > orion_spi->max_speed))
                 spi->max_speed_hz = orion_spi->max_speed;
diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
index 0fdd6f6873bf..d3a311327227 100644
--- a/drivers/video/omap/lcd_ams_delta.c
+++ b/drivers/video/omap/lcd_ams_delta.c
@@ -25,6 +25,7 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <linux/lcd.h>
+#include <linux/gpio.h>
 
 #include <plat/board-ams-delta.h>
 #include <mach/hardware.h>
@@ -98,29 +99,41 @@ static struct lcd_ops ams_delta_lcd_ops = {
 
 /* omapfb panel section */
 
+static const struct gpio _gpios[] = {
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_LCD_VBLEN,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "lcd_vblen",
+        },
+        {
+                .gpio   = AMS_DELTA_GPIO_PIN_LCD_NDISP,
+                .flags  = GPIOF_OUT_INIT_LOW,
+                .label  = "lcd_ndisp",
+        },
+};
+
 static int ams_delta_panel_init(struct lcd_panel *panel,
                 struct omapfb_device *fbdev)
 {
-        return 0;
+        return gpio_request_array(_gpios, ARRAY_SIZE(_gpios));
 }
 
 static void ams_delta_panel_cleanup(struct lcd_panel *panel)
 {
+        gpio_free_array(_gpios, ARRAY_SIZE(_gpios));
 }
 
 static int ams_delta_panel_enable(struct lcd_panel *panel)
 {
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP,
-                        AMS_DELTA_LATCH2_LCD_NDISP);
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN,
-                        AMS_DELTA_LATCH2_LCD_VBLEN);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_NDISP, 1);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_VBLEN, 1);
         return 0;
 }
 
 static void ams_delta_panel_disable(struct lcd_panel *panel)
 {
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_VBLEN, 0);
-        ams_delta_latch2_write(AMS_DELTA_LATCH2_LCD_NDISP, 0);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_VBLEN, 0);
+        gpio_set_value(AMS_DELTA_GPIO_PIN_LCD_NDISP, 0);
 }
 
 static unsigned long ams_delta_panel_get_caps(struct lcd_panel *panel)
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 4ad78f868515..1368e4ca3100 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -28,9 +28,9 @@
 /*
  * Watchdog timer block registers.
  */
-#define TIMER_CTRL              (TIMER_VIRT_BASE + 0x0000)
+#define TIMER_CTRL              0x0000
 #define  WDT_EN                 0x0010
-#define WDT_VAL                 (TIMER_VIRT_BASE + 0x0024)
+#define WDT_VAL                 0x0024
 
 #define WDT_MAX_CYCLE_COUNT     0xffffffff
 #define WDT_IN_USE              0
@@ -40,6 +40,7 @@ static int nowayout = WATCHDOG_NOWAYOUT;
 static int heartbeat = -1;              /* module parameter (seconds) */
 static unsigned int wdt_max_duration;   /* (seconds) */
 static unsigned int wdt_tclk;
+static void __iomem *wdt_reg;
 static unsigned long wdt_status;
 static DEFINE_SPINLOCK(wdt_lock);
 
@@ -48,7 +49,7 @@ static void orion_wdt_ping(void)
         spin_lock(&wdt_lock);
 
         /* Reload watchdog duration */
-        writel(wdt_tclk * heartbeat, WDT_VAL);
+        writel(wdt_tclk * heartbeat, wdt_reg + WDT_VAL);
 
         spin_unlock(&wdt_lock);
 }
@@ -60,7 +61,7 @@ static void orion_wdt_enable(void)
         spin_lock(&wdt_lock);
 
         /* Set watchdog duration */
-        writel(wdt_tclk * heartbeat, WDT_VAL);
+        writel(wdt_tclk * heartbeat, wdt_reg + WDT_VAL);
 
         /* Clear watchdog timer interrupt */
         reg = readl(BRIDGE_CAUSE);
@@ -68,9 +69,9 @@ static void orion_wdt_enable(void)
         writel(reg, BRIDGE_CAUSE);
 
         /* Enable watchdog timer */
-        reg = readl(TIMER_CTRL);
+        reg = readl(wdt_reg + TIMER_CTRL);
         reg |= WDT_EN;
-        writel(reg, TIMER_CTRL);
+        writel(reg, wdt_reg + TIMER_CTRL);
 
         /* Enable reset on watchdog */
         reg = readl(RSTOUTn_MASK);
@@ -92,9 +93,9 @@ static void orion_wdt_disable(void)
         writel(reg, RSTOUTn_MASK);
 
         /* Disable watchdog timer */
-        reg = readl(TIMER_CTRL);
+        reg = readl(wdt_reg + TIMER_CTRL);
         reg &= ~WDT_EN;
-        writel(reg, TIMER_CTRL);
+        writel(reg, wdt_reg + TIMER_CTRL);
 
         spin_unlock(&wdt_lock);
 }
@@ -102,7 +103,7 @@ static void orion_wdt_disable(void)
 static int orion_wdt_get_timeleft(int *time_left)
 {
         spin_lock(&wdt_lock);
-        *time_left = readl(WDT_VAL) / wdt_tclk;
+        *time_left = readl(wdt_reg + WDT_VAL) / wdt_tclk;
         spin_unlock(&wdt_lock);
         return 0;
 }
@@ -236,6 +237,7 @@ static struct miscdevice orion_wdt_miscdev = {
 static int __devinit orion_wdt_probe(struct platform_device *pdev)
 {
         struct orion_wdt_platform_data *pdata = pdev->dev.platform_data;
+        struct resource *res;
         int ret;
 
         if (pdata) {
@@ -245,6 +247,10 @@ static int __devinit orion_wdt_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+        wdt_reg = ioremap(res->start, resource_size(res));
+
         if (orion_wdt_miscdev.parent)
                 return -EBUSY;
         orion_wdt_miscdev.parent = &pdev->dev;