diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 52a350974496..e5ccc3490d6a 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -183,7 +183,6 @@ load-$(CONFIG_MACH_JAZZ)	+= 0xffffffff80080000
 # Common Alchemy Au1x00 stuff
 #
 core-$(CONFIG_SOC_AU1X00)	+= arch/mips/alchemy/common/
-cflags-$(CONFIG_SOC_AU1X00)	+= -I$(srctree)/arch/mips/include/asm/mach-au1x00
 
 #
 # AMD Alchemy Pb1000 eval board
@@ -281,6 +280,10 @@ load-$(CONFIG_MIPS_MTX1)	+= 0xffffffff80100000
 libs-$(CONFIG_MIPS_XXS1500)	+= arch/mips/alchemy/xxs1500/
 load-$(CONFIG_MIPS_XXS1500)	+= 0xffffffff80100000
 
+# must be last for Alchemy systems for GPIO to work properly
+cflags-$(CONFIG_SOC_AU1X00)	+= -I$(srctree)/arch/mips/include/asm/mach-au1x00
+
+
 #
 # Cobalt Server
 #
diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index 8128aebfb155..00b498e97c83 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -1,3 +1,14 @@
+# au1000-style gpio
+config ALCHEMY_GPIO_AU1000
+	bool
+
+# select this in your board config if you don't want to use the gpio
+# namespace as documented in the manuals.  In this case however you need
+# to create the necessary gpio_* functions in your board code/headers!
+# see arch/mips/include/asm/mach-au1x00/gpio.h   for more information.
+config ALCHEMY_GPIO_INDIRECT
+	def_bool n
+
 choice
 	prompt "Machine type"
 	depends on MACH_ALCHEMY
@@ -108,22 +119,27 @@ endchoice
 config SOC_AU1000
 	bool
 	select SOC_AU1X00
+	select ALCHEMY_GPIO_AU1000
 
 config SOC_AU1100
 	bool
 	select SOC_AU1X00
+	select ALCHEMY_GPIO_AU1000
 
 config SOC_AU1500
 	bool
 	select SOC_AU1X00
+	select ALCHEMY_GPIO_AU1000
 
 config SOC_AU1550
 	bool
 	select SOC_AU1X00
+	select ALCHEMY_GPIO_AU1000
 
 config SOC_AU1200
 	bool
 	select SOC_AU1X00
+	select ALCHEMY_GPIO_AU1000
 
 config SOC_AU1X00
 	bool
@@ -134,4 +150,5 @@ config SOC_AU1X00
 	select SYS_HAS_CPU_MIPS32_R1
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_APM_EMULATION
-	select ARCH_REQUIRE_GPIOLIB
+	select GENERIC_GPIO
+	select ARCH_WANT_OPTIONAL_GPIOLIB
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index d50d4764eafe..b67fb512529d 100644
--- a/arch/mips/alchemy/common/Makefile
+++ b/arch/mips/alchemy/common/Makefile
@@ -7,7 +7,14 @@
 
 obj-y += prom.o irq.o puts.o time.o reset.o \
 	clocks.o platform.o power.o setup.o \
-	sleeper.o dma.o dbdma.o gpio.o
+	sleeper.o dma.o dbdma.o
+
+# optional gpiolib support
+ifeq ($(CONFIG_ALCHEMY_GPIO_INDIRECT),)
+ ifeq ($(CONFIG_GPIOLIB),y)
+  obj-$(CONFIG_ALCHEMY_GPIO_AU1000) += gpiolib-au1000.o
+ endif
+endif
 
 obj-$(CONFIG_PCI)		+= pci.o
 
diff --git a/arch/mips/alchemy/common/gpio.c b/arch/mips/alchemy/common/gpio.c
deleted file mode 100644
index 91a9c4436c39..000000000000
--- a/arch/mips/alchemy/common/gpio.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- *  Copyright (C) 2007-2009, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
- *  	Architecture specific GPIO support
- *
- *  This program is free software; you can redistribute	 it and/or modify it
- *  under  the terms of	 the GNU General  Public License as published by the
- *  Free Software Foundation;  either version 2 of the	License, or (at your
- *  option) any later version.
- *
- *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
- *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
- *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the  GNU General Public License along
- *  with this program; if not, write  to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *  Notes :
- * 	au1000 SoC have only one GPIO line : GPIO1
- * 	others have a second one : GPIO2
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/gpio.h>
-
-struct au1000_gpio_chip {
-	struct gpio_chip	chip;
-	void __iomem		*regbase;
-};
-
-#if !defined(CONFIG_SOC_AU1000)
-static int au1000_gpio2_get(struct gpio_chip *chip, unsigned offset)
-{
-	u32 mask = 1 << offset;
-	struct au1000_gpio_chip *gpch;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-	return readl(gpch->regbase + AU1000_GPIO2_ST) & mask;
-}
-
-static void au1000_gpio2_set(struct gpio_chip *chip,
-				unsigned offset, int value)
-{
-	u32 mask = ((GPIO2_OUT_EN_MASK << offset) | (!!value << offset));
-	struct au1000_gpio_chip *gpch;
-	unsigned long flags;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
-	local_irq_save(flags);
-	writel(mask, gpch->regbase + AU1000_GPIO2_OUT);
-	local_irq_restore(flags);
-}
-
-static int au1000_gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
-{
-	u32 mask = 1 << offset;
-	u32 tmp;
-	struct au1000_gpio_chip *gpch;
-	unsigned long flags;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
-	local_irq_save(flags);
-	tmp = readl(gpch->regbase + AU1000_GPIO2_DIR);
-	tmp &= ~mask;
-	writel(tmp, gpch->regbase + AU1000_GPIO2_DIR);
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-static int au1000_gpio2_direction_output(struct gpio_chip *chip,
-					unsigned offset, int value)
-{
-	u32 mask = 1 << offset;
-	u32 out_mask = ((GPIO2_OUT_EN_MASK << offset) | (!!value << offset));
-	u32 tmp;
-	struct au1000_gpio_chip *gpch;
-	unsigned long flags;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
-	local_irq_save(flags);
-	tmp = readl(gpch->regbase + AU1000_GPIO2_DIR);
-	tmp |= mask;
-	writel(tmp, gpch->regbase + AU1000_GPIO2_DIR);
-	writel(out_mask, gpch->regbase + AU1000_GPIO2_OUT);
-	local_irq_restore(flags);
-
-	return 0;
-}
-#endif /* !defined(CONFIG_SOC_AU1000) */
-
-static int au1000_gpio1_get(struct gpio_chip *chip, unsigned offset)
-{
-	u32 mask = 1 << offset;
-	struct au1000_gpio_chip *gpch;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-	return readl(gpch->regbase + AU1000_GPIO1_ST) & mask;
-}
-
-static void au1000_gpio1_set(struct gpio_chip *chip,
-				unsigned offset, int value)
-{
-	u32 mask = 1 << offset;
-	u32 reg_offset;
-	struct au1000_gpio_chip *gpch;
-	unsigned long flags;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
-	if (value)
-		reg_offset = AU1000_GPIO1_OUT;
-	else
-		reg_offset = AU1000_GPIO1_CLR;
-
-	local_irq_save(flags);
-	writel(mask, gpch->regbase + reg_offset);
-	local_irq_restore(flags);
-}
-
-static int au1000_gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
-{
-	u32 mask = 1 << offset;
-	struct au1000_gpio_chip *gpch;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-	writel(mask, gpch->regbase + AU1000_GPIO1_ST);
-
-	return 0;
-}
-
-static int au1000_gpio1_direction_output(struct gpio_chip *chip,
-					unsigned offset, int value)
-{
-	u32 mask = 1 << offset;
-	struct au1000_gpio_chip *gpch;
-
-	gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
-	writel(mask, gpch->regbase + AU1000_GPIO1_TRI_OUT);
-	au1000_gpio1_set(chip, offset, value);
-
-	return 0;
-}
-
-struct au1000_gpio_chip au1000_gpio_chip[] = {
-	[0] = {
-		.regbase			= (void __iomem *)SYS_BASE,
-		.chip = {
-			.label			= "au1000-gpio1",
-			.direction_input	= au1000_gpio1_direction_input,
-			.direction_output	= au1000_gpio1_direction_output,
-			.get			= au1000_gpio1_get,
-			.set			= au1000_gpio1_set,
-			.base			= 0,
-			.ngpio			= 32,
-		},
-	},
-#if !defined(CONFIG_SOC_AU1000)
-	[1] = {
-		.regbase                        = (void __iomem *)GPIO2_BASE,
-		.chip = {
-			.label                  = "au1000-gpio2",
-			.direction_input        = au1000_gpio2_direction_input,
-			.direction_output       = au1000_gpio2_direction_output,
-			.get                    = au1000_gpio2_get,
-			.set                    = au1000_gpio2_set,
-			.base                   = AU1XXX_GPIO_BASE,
-			.ngpio                  = 32,
-		},
-	},
-#endif
-};
-
-static int __init au1000_gpio_init(void)
-{
-	gpiochip_add(&au1000_gpio_chip[0].chip);
-#if !defined(CONFIG_SOC_AU1000)
-	gpiochip_add(&au1000_gpio_chip[1].chip);
-#endif
-
-	return 0;
-}
-arch_initcall(au1000_gpio_init);
-
diff --git a/arch/mips/alchemy/common/gpiolib-au1000.c b/arch/mips/alchemy/common/gpiolib-au1000.c
new file mode 100644
index 000000000000..1bfa91f939f4
--- /dev/null
+++ b/arch/mips/alchemy/common/gpiolib-au1000.c
@@ -0,0 +1,130 @@
+/*
+ *  Copyright (C) 2007-2009, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ *  	GPIOLIB support for Au1000, Au1500, Au1100, Au1550 and Au12x0.
+ *
+ *  This program is free software; you can redistribute	 it and/or modify it
+ *  under  the terms of	 the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the	License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED	  ``AS	IS'' AND   ANY	EXPRESS OR IMPLIED
+ *  WARRANTIES,	  INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO	EVENT  SHALL   THE AUTHOR  BE	 LIABLE FOR ANY	  DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED	  TO, PROCUREMENT OF  SUBSTITUTE GOODS	OR SERVICES; LOSS OF
+ *  USE, DATA,	OR PROFITS; OR	BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN	 CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Notes :
+ * 	au1000 SoC have only one GPIO block : GPIO1
+ * 	Au1100, Au15x0, Au12x0 have a second one : GPIO2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio.h>
+
+#if !defined(CONFIG_SOC_AU1000)
+static int gpio2_get(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_get_value(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static void gpio2_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	alchemy_gpio2_set_value(offset + ALCHEMY_GPIO2_BASE, value);
+}
+
+static int gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_direction_input(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static int gpio2_direction_output(struct gpio_chip *chip, unsigned offset,
+				  int value)
+{
+	return alchemy_gpio2_direction_output(offset + ALCHEMY_GPIO2_BASE,
+						value);
+}
+
+static int gpio2_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio2_to_irq(offset + ALCHEMY_GPIO2_BASE);
+}
+#endif /* !defined(CONFIG_SOC_AU1000) */
+
+static int gpio1_get(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_get_value(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static void gpio1_set(struct gpio_chip *chip,
+				unsigned offset, int value)
+{
+	alchemy_gpio1_set_value(offset + ALCHEMY_GPIO1_BASE, value);
+}
+
+static int gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_direction_input(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static int gpio1_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	return alchemy_gpio1_direction_output(offset + ALCHEMY_GPIO1_BASE,
+					     value);
+}
+
+static int gpio1_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	return alchemy_gpio1_to_irq(offset + ALCHEMY_GPIO1_BASE);
+}
+
+struct gpio_chip alchemy_gpio_chip[] = {
+	[0] = {
+		.label			= "alchemy-gpio1",
+		.direction_input	= gpio1_direction_input,
+		.direction_output	= gpio1_direction_output,
+		.get			= gpio1_get,
+		.set			= gpio1_set,
+		.to_irq			= gpio1_to_irq,
+		.base			= ALCHEMY_GPIO1_BASE,
+		.ngpio			= ALCHEMY_GPIO1_NUM,
+	},
+#if !defined(CONFIG_SOC_AU1000)
+	[1] = {
+		.label                  = "alchemy-gpio2",
+		.direction_input        = gpio2_direction_input,
+		.direction_output       = gpio2_direction_output,
+		.get                    = gpio2_get,
+		.set                    = gpio2_set,
+		.to_irq			= gpio2_to_irq,
+		.base                   = ALCHEMY_GPIO2_BASE,
+		.ngpio                  = ALCHEMY_GPIO2_NUM,
+	},
+#endif
+};
+
+static int __init alchemy_gpiolib_init(void)
+{
+	gpiochip_add(&alchemy_gpio_chip[0]);
+#if !defined(CONFIG_SOC_AU1000)
+	gpiochip_add(&alchemy_gpio_chip[1]);
+#endif
+
+	return 0;
+}
+arch_initcall(alchemy_gpiolib_init);
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
new file mode 100644
index 000000000000..127d4ed9f073
--- /dev/null
+++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
@@ -0,0 +1,604 @@
+/*
+ * GPIO functions for Au1000, Au1500, Au1100, Au1550, Au1200
+ *
+ * Copyright (c) 2009 Manuel Lauss.
+ *
+ * Licensed under the terms outlined in the file COPYING.
+ */
+
+#ifndef _ALCHEMY_GPIO_AU1000_H_
+#define _ALCHEMY_GPIO_AU1000_H_
+
+#include <asm/mach-au1x00/au1000.h>
+
+/* The default GPIO numberspace as documented in the Alchemy manuals.
+ * GPIO0-31 from GPIO1 block,   GPIO200-215 from GPIO2 block.
+ */
+#define ALCHEMY_GPIO1_BASE	0
+#define ALCHEMY_GPIO2_BASE	200
+
+#define ALCHEMY_GPIO1_NUM	32
+#define ALCHEMY_GPIO2_NUM	16
+#define ALCHEMY_GPIO1_MAX 	(ALCHEMY_GPIO1_BASE + ALCHEMY_GPIO1_NUM - 1)
+#define ALCHEMY_GPIO2_MAX	(ALCHEMY_GPIO2_BASE + ALCHEMY_GPIO2_NUM - 1)
+
+#define MAKE_IRQ(intc, off)	(AU1000_INTC##intc##_INT_BASE + (off))
+
+
+static inline int au1000_gpio1_to_irq(int gpio)
+{
+	return MAKE_IRQ(1, gpio - ALCHEMY_GPIO1_BASE);
+}
+
+static inline int au1000_gpio2_to_irq(int gpio)
+{
+	return -ENXIO;
+}
+
+#ifdef CONFIG_SOC_AU1000
+static inline int au1000_irq_to_gpio(int irq)
+{
+	if ((irq >= AU1000_GPIO_0) && (irq <= AU1000_GPIO_31))
+		return ALCHEMY_GPIO1_BASE + (irq - AU1000_GPIO_0) + 0;
+
+	return -ENXIO;
+}
+#endif
+
+static inline int au1500_gpio1_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO1_BASE;
+
+	switch (gpio) {
+	case 0 ... 15:
+	case 20:
+	case 23 ... 28:	return MAKE_IRQ(1, gpio);
+	}
+
+	return -ENXIO;
+}
+
+static inline int au1500_gpio2_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO2_BASE;
+
+	switch (gpio) {
+	case 0 ... 3:	return MAKE_IRQ(1, 16 + gpio - 0);
+	case 4 ... 5:	return MAKE_IRQ(1, 21 + gpio - 4);
+	case 6 ... 7:	return MAKE_IRQ(1, 29 + gpio - 6);
+	}
+
+	return -ENXIO;
+}
+
+#ifdef CONFIG_SOC_AU1500
+static inline int au1500_irq_to_gpio(int irq)
+{
+	switch (irq) {
+	case AU1000_GPIO_0 ... AU1000_GPIO_15:
+	case AU1500_GPIO_20:
+	case AU1500_GPIO_23 ... AU1500_GPIO_28:
+		return ALCHEMY_GPIO1_BASE + (irq - AU1000_GPIO_0) + 0;
+	case AU1500_GPIO_200 ... AU1500_GPIO_203:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1500_GPIO_200) + 0;
+	case AU1500_GPIO_204 ... AU1500_GPIO_205:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1500_GPIO_204) + 4;
+	case AU1500_GPIO_206 ... AU1500_GPIO_207:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1500_GPIO_206) + 6;
+	case AU1500_GPIO_208_215:
+		return ALCHEMY_GPIO2_BASE + 8;
+	}
+
+	return -ENXIO;
+}
+#endif
+
+static inline int au1100_gpio1_to_irq(int gpio)
+{
+	return MAKE_IRQ(1, gpio - ALCHEMY_GPIO1_BASE);
+}
+
+static inline int au1100_gpio2_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO2_BASE;
+
+	if ((gpio >= 8) && (gpio <= 15))
+		return MAKE_IRQ(0, 29);		/* shared GPIO208_215 */
+}
+
+#ifdef CONFIG_SOC_AU1100
+static inline int au1100_irq_to_gpio(int irq)
+{
+	switch (irq) {
+	case AU1000_GPIO_0 ... AU1000_GPIO_31:
+		return ALCHEMY_GPIO1_BASE + (irq - AU1000_GPIO_0) + 0;
+	case AU1100_GPIO_208_215:
+		return ALCHEMY_GPIO2_BASE + 8;
+	}
+
+	return -ENXIO;
+}
+#endif
+
+static inline int au1550_gpio1_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO1_BASE;
+
+	switch (gpio) {
+	case 0 ... 15:
+	case 20 ... 28:	return MAKE_IRQ(1, gpio);
+	case 16 ... 17:	return MAKE_IRQ(1, 18 + gpio - 16);
+	}
+
+	return -ENXIO;
+}
+
+static inline int au1550_gpio2_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO2_BASE;
+
+	switch (gpio) {
+	case 0:		return MAKE_IRQ(1, 16);
+	case 1 ... 5:	return MAKE_IRQ(1, 17);	/* shared GPIO201_205 */
+	case 6 ... 7:	return MAKE_IRQ(1, 29 + gpio - 6);
+	case 8 ... 15:	return MAKE_IRQ(1, 31);	/* shared GPIO208_215 */
+	}
+
+	return -ENXIO;
+}
+
+#ifdef CONFIG_SOC_AU1550
+static inline int au1550_irq_to_gpio(int irq)
+{
+	switch (irq) {
+	case AU1000_GPIO_0 ... AU1000_GPIO_15:
+		return ALCHEMY_GPIO1_BASE + (irq - AU1000_GPIO_0) + 0;
+	case AU1550_GPIO_200:
+	case AU1500_GPIO_201_205:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1550_GPIO_200) + 0;
+	case AU1500_GPIO_16 ... AU1500_GPIO_28:
+		return ALCHEMY_GPIO1_BASE + (irq - AU1500_GPIO_16) + 16;
+	case AU1500_GPIO_206 ... AU1500_GPIO_208_218:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1500_GPIO_206) + 6;
+	}
+
+	return -ENXIO;
+}
+#endif
+
+static inline int au1200_gpio1_to_irq(int gpio)
+{
+	return MAKE_IRQ(1, gpio - ALCHEMY_GPIO1_BASE);
+}
+
+static inline int au1200_gpio2_to_irq(int gpio)
+{
+	gpio -= ALCHEMY_GPIO2_BASE;
+
+	switch (gpio) {
+	case 0 ... 2:	return MAKE_IRQ(0, 5 + gpio - 0);
+	case 3:		return MAKE_IRQ(0, 22);
+	case 4 ... 7:	return MAKE_IRQ(0, 24 + gpio - 4);
+	case 8 ... 15:	return MAKE_IRQ(0, 28);	/* shared GPIO208_215 */
+	}
+
+	return -ENXIO;
+}
+
+#ifdef CONFIG_SOC_AU1200
+static inline int au1200_irq_to_gpio(int irq)
+{
+	switch (irq) {
+	case AU1000_GPIO_0 ... AU1000_GPIO_31:
+		return ALCHEMY_GPIO1_BASE + (irq - AU1000_GPIO_0) + 0;
+	case AU1200_GPIO_200 ... AU1200_GPIO_202:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1200_GPIO_200) + 0;
+	case AU1200_GPIO_203:
+		return ALCHEMY_GPIO2_BASE + 3;
+	case AU1200_GPIO_204 ... AU1200_GPIO_208_215:
+		return ALCHEMY_GPIO2_BASE + (irq - AU1200_GPIO_204) + 4;
+	}
+
+	return -ENXIO;
+}
+#endif
+
+/*
+ * GPIO1 block macros for common linux gpio functions.
+ */
+static inline void alchemy_gpio1_set_value(int gpio, int v)
+{
+	unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE);
+	unsigned long r = v ? SYS_OUTPUTSET : SYS_OUTPUTCLR;
+	au_writel(mask, r);
+	au_sync();
+}
+
+static inline int alchemy_gpio1_get_value(int gpio)
+{
+	unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE);
+	return au_readl(SYS_PINSTATERD) & mask;
+}
+
+static inline int alchemy_gpio1_direction_input(int gpio)
+{
+	unsigned long mask = 1 << (gpio - ALCHEMY_GPIO1_BASE);
+	au_writel(mask, SYS_TRIOUTCLR);
+	au_sync();
+	return 0;
+}
+
+static inline int alchemy_gpio1_direction_output(int gpio, int v)
+{
+	/* hardware switches to "output" mode when one of the two
+	 * "set_value" registers is accessed.
+	 */
+	alchemy_gpio1_set_value(gpio, v);
+	return 0;
+}
+
+static inline int alchemy_gpio1_is_valid(int gpio)
+{
+	return ((gpio >= ALCHEMY_GPIO1_BASE) && (gpio <= ALCHEMY_GPIO1_MAX));
+}
+
+static inline int alchemy_gpio1_to_irq(int gpio)
+{
+#if defined(CONFIG_SOC_AU1000)
+	return au1000_gpio1_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1100)
+	return au1100_gpio1_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1500)
+	return au1500_gpio1_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1550)
+	return au1550_gpio1_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1200)
+	return au1200_gpio1_to_irq(gpio);
+#else
+	return -ENXIO;
+#endif
+}
+
+/*
+ * GPIO2 block macros for common linux GPIO functions. The 'gpio'
+ * parameter must be in range of ALCHEMY_GPIO2_BASE..ALCHEMY_GPIO2_MAX.
+ */
+static inline void __alchemy_gpio2_mod_dir(int gpio, int to_out)
+{
+	unsigned long mask = 1 << (gpio - ALCHEMY_GPIO2_BASE);
+	unsigned long d = au_readl(GPIO2_DIR);
+	if (to_out)
+		d |= mask;
+	else
+		d &= ~mask;
+	au_writel(d, GPIO2_DIR);
+	au_sync();
+}
+
+static inline void alchemy_gpio2_set_value(int gpio, int v)
+{
+	unsigned long mask;
+	mask = ((v) ? 0x00010001 : 0x00010000) << (gpio - ALCHEMY_GPIO2_BASE);
+	au_writel(mask, GPIO2_OUTPUT);
+	au_sync();
+}
+
+static inline int alchemy_gpio2_get_value(int gpio)
+{
+	return au_readl(GPIO2_PINSTATE) & (1 << (gpio - ALCHEMY_GPIO2_BASE));
+}
+
+static inline int alchemy_gpio2_direction_input(int gpio)
+{
+	unsigned long flags;
+	local_irq_save(flags);
+	__alchemy_gpio2_mod_dir(gpio, 0);
+	local_irq_restore(flags);
+	return 0;
+}
+
+static inline int alchemy_gpio2_direction_output(int gpio, int v)
+{
+	unsigned long flags;
+	alchemy_gpio2_set_value(gpio, v);
+	local_irq_save(flags);
+	__alchemy_gpio2_mod_dir(gpio, 1);
+	local_irq_restore(flags);
+	return 0;
+}
+
+static inline int alchemy_gpio2_is_valid(int gpio)
+{
+	return ((gpio >= ALCHEMY_GPIO2_BASE) && (gpio <= ALCHEMY_GPIO2_MAX));
+}
+
+static inline int alchemy_gpio2_to_irq(int gpio)
+{
+#if defined(CONFIG_SOC_AU1000)
+	return au1000_gpio2_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1100)
+	return au1100_gpio2_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1500)
+	return au1500_gpio2_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1550)
+	return au1550_gpio2_to_irq(gpio);
+#elif defined(CONFIG_SOC_AU1200)
+	return au1200_gpio2_to_irq(gpio);
+#else
+	return -ENXIO;
+#endif
+}
+
+/**********************************************************************/
+
+/* On Au1000, Au1500 and Au1100 GPIOs won't work as inputs before
+ * SYS_PININPUTEN is written to at least once.  On Au1550/Au1200 this
+ * register enables use of GPIOs as wake source.
+ */
+static inline void alchemy_gpio1_input_enable(void)
+{
+	au_writel(0, SYS_PININPUTEN);	/* the write op is key */
+	au_sync();
+}
+
+/* GPIO2 shared interrupts and control */
+
+static inline void __alchemy_gpio2_mod_int(int gpio2, int en)
+{
+	unsigned long r = au_readl(GPIO2_INTENABLE);
+	if (en)
+		r |= 1 << gpio2;
+	else
+		r &= ~(1 << gpio2);
+	au_writel(r, GPIO2_INTENABLE);
+	au_sync();
+}
+
+/**
+ * alchemy_gpio2_enable_int - Enable a GPIO2 pins' shared irq contribution.
+ * @gpio2:	The GPIO2 pin to activate (200...215).
+ *
+ * GPIO208-215 have one shared interrupt line to the INTC.  They are
+ * and'ed with a per-pin enable bit and finally or'ed together to form
+ * a single irq request (useful for active-high sources).
+ * With this function, a pins' individual contribution to the int request
+ * can be enabled.  As with all other GPIO-based interrupts, the INTC
+ * must be programmed to accept the GPIO208_215 interrupt as well.
+ *
+ * NOTE: Calling this macro is only necessary for GPIO208-215; all other
+ * GPIO2-based interrupts have their own request to the INTC.  Please
+ * consult your Alchemy databook for more information!
+ *
+ * NOTE: On the Au1550, GPIOs 201-205 also have a shared interrupt request
+ * line to the INTC, GPIO201_205.  This function can be used for those
+ * as well.
+ *
+ * NOTE: 'gpio2' parameter must be in range of the GPIO2 numberspace
+ * (200-215 by default). No sanity checks are made,
+ */
+static inline void alchemy_gpio2_enable_int(int gpio2)
+{
+	unsigned long flags;
+
+	gpio2 -= ALCHEMY_GPIO2_BASE;
+
+#if defined(CONFIG_SOC_AU1100) || defined(CONFIG_SOC_AU1500)
+	/* Au1100/Au1500 have GPIO208-215 enable bits at 0..7 */
+	gpio2 -= 8;
+#endif
+	local_irq_save(flags);
+	__alchemy_gpio2_mod_int(gpio2, 1);
+	local_irq_restore(flags);
+}
+
+/**
+ * alchemy_gpio2_disable_int - Disable a GPIO2 pins' shared irq contribution.
+ * @gpio2:	The GPIO2 pin to activate (200...215).
+ *
+ * see function alchemy_gpio2_enable_int() for more information.
+ */
+static inline void alchemy_gpio2_disable_int(int gpio2)
+{
+	unsigned long flags;
+
+	gpio2 -= ALCHEMY_GPIO2_BASE;
+
+#if defined(CONFIG_SOC_AU1100) || defined(CONFIG_SOC_AU1500)
+	/* Au1100/Au1500 have GPIO208-215 enable bits at 0..7 */
+	gpio2 -= 8;
+#endif
+	local_irq_save(flags);
+	__alchemy_gpio2_mod_int(gpio2, 0);
+	local_irq_restore(flags);
+}
+
+/**
+ * alchemy_gpio2_enable -  Activate GPIO2 block.
+ *
+ * The GPIO2 block must be enabled excplicitly to work.  On systems
+ * where this isn't done by the bootloader, this macro can be used.
+ */
+static inline void alchemy_gpio2_enable(void)
+{
+	au_writel(3, GPIO2_ENABLE);	/* reset, clock enabled */
+	au_sync();
+	au_writel(1, GPIO2_ENABLE);	/* clock enabled */
+	au_sync();
+}
+
+/**
+ * alchemy_gpio2_disable - disable GPIO2 block.
+ *
+ * Disable and put GPIO2 block in low-power mode.
+ */
+static inline void alchemy_gpio2_disable(void)
+{
+	au_writel(2, GPIO2_ENABLE);	/* reset, clock disabled */
+	au_sync();
+}
+
+/**********************************************************************/
+
+/* wrappers for on-chip gpios; can be used before gpio chips have been
+ * registered with gpiolib.
+ */
+static inline int alchemy_gpio_direction_input(int gpio)
+{
+	return (gpio >= ALCHEMY_GPIO2_BASE) ?
+		alchemy_gpio2_direction_input(gpio) :
+		alchemy_gpio1_direction_input(gpio);
+}
+
+static inline int alchemy_gpio_direction_output(int gpio, int v)
+{
+	return (gpio >= ALCHEMY_GPIO2_BASE) ?
+		alchemy_gpio2_direction_output(gpio, v) :
+		alchemy_gpio1_direction_output(gpio, v);
+}
+
+static inline int alchemy_gpio_get_value(int gpio)
+{
+	return (gpio >= ALCHEMY_GPIO2_BASE) ?
+		alchemy_gpio2_get_value(gpio) :
+		alchemy_gpio1_get_value(gpio);
+}
+
+static inline void alchemy_gpio_set_value(int gpio, int v)
+{
+	if (gpio >= ALCHEMY_GPIO2_BASE)
+		alchemy_gpio2_set_value(gpio, v);
+	else
+		alchemy_gpio1_set_value(gpio, v);
+}
+
+static inline int alchemy_gpio_is_valid(int gpio)
+{
+	return (gpio >= ALCHEMY_GPIO2_BASE) ?
+		alchemy_gpio2_is_valid(gpio) :
+		alchemy_gpio1_is_valid(gpio);
+}
+
+static inline int alchemy_gpio_cansleep(int gpio)
+{
+	return 0;	/* Alchemy never gets tired */
+}
+
+static inline int alchemy_gpio_to_irq(int gpio)
+{
+	return (gpio >= ALCHEMY_GPIO2_BASE) ?
+		alchemy_gpio2_to_irq(gpio) :
+		alchemy_gpio1_to_irq(gpio);
+}
+
+static inline int alchemy_irq_to_gpio(int irq)
+{
+#if defined(CONFIG_SOC_AU1000)
+	return au1000_irq_to_gpio(irq);
+#elif defined(CONFIG_SOC_AU1100)
+	return au1100_irq_to_gpio(irq);
+#elif defined(CONFIG_SOC_AU1500)
+	return au1500_irq_to_gpio(irq);
+#elif defined(CONFIG_SOC_AU1550)
+	return au1550_irq_to_gpio(irq);
+#elif defined(CONFIG_SOC_AU1200)
+	return au1200_irq_to_gpio(irq);
+#else
+	return -ENXIO;
+#endif
+}
+
+/**********************************************************************/
+
+/* Linux gpio framework integration.
+ *
+ * 4 use cases of Au1000-Au1200 GPIOS:
+ *(1) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=y:
+ *	Board must register gpiochips.
+ *(2) GPIOLIB=y, ALCHEMY_GPIO_INDIRECT=n:
+ *	2 (1 for Au1000) gpio_chips are registered.
+ *
+ *(3) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=y:
+ *	the boards' gpio.h must provide	the linux gpio wrapper functions,
+ *
+ *(4) GPIOLIB=n, ALCHEMY_GPIO_INDIRECT=n:
+ *	inlinable gpio functions are provided which enable access to the
+ *	Au1000 gpios only by using the numbers straight out of the data-
+ *	sheets.
+
+ * Cases 1 and 3 are intended for boards which want to provide their own
+ * GPIO namespace and -operations (i.e. for example you have 8 GPIOs
+ * which are in part provided by spare Au1000 GPIO pins and in part by
+ * an external FPGA but you still want them to be accssible in linux
+ * as gpio0-7. The board can of course use the alchemy_gpioX_* functions
+ * as required).
+ */
+
+#ifndef CONFIG_GPIOLIB
+
+
+#ifndef CONFIG_ALCHEMY_GPIO_INDIRECT	/* case (4) */
+
+static inline int gpio_direction_input(int gpio)
+{
+	return alchemy_gpio_direction_input(gpio);
+}
+
+static inline int gpio_direction_output(int gpio, int v)
+{
+	return alchemy_gpio_direction_output(gpio, v);
+}
+
+static inline int gpio_get_value(int gpio)
+{
+	return alchemy_gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(int gpio, int v)
+{
+	alchemy_gpio_set_value(gpio, v);
+}
+
+static inline int gpio_is_valid(int gpio)
+{
+	return alchemy_gpio_is_valid(gpio);
+}
+
+static inline int gpio_cansleep(int gpio)
+{
+	return alchemy_gpio_cansleep(gpio);
+}
+
+static inline int gpio_to_irq(int gpio)
+{
+	return alchemy_gpio_to_irq(gpio);
+}
+
+static inline int irq_to_gpio(int irq)
+{
+	return alchemy_irq_to_gpio(irq);
+}
+
+#endif	/* !CONFIG_ALCHEMY_GPIO_INDIRECT */
+
+
+#else	/* CONFIG GPIOLIB */
+
+
+ /* using gpiolib to provide up to 2 gpio_chips for on-chip gpios */
+#ifndef CONFIG_ALCHEMY_GPIO_INDIRECT	/* case (2) */
+
+/* get everything through gpiolib */
+#define gpio_to_irq	__gpio_to_irq
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+#define irq_to_gpio	alchemy_irq_to_gpio
+
+#include <asm-generic/gpio.h>
+
+#endif	/* !CONFIG_ALCHEMY_GPIO_INDIRECT */
+
+
+#endif	/* !CONFIG_GPIOLIB */
+
+#endif /* _ALCHEMY_GPIO_AU1000_H_ */
diff --git a/arch/mips/include/asm/mach-au1x00/gpio.h b/arch/mips/include/asm/mach-au1x00/gpio.h
index 34d9b7279024..f9b7d41c659a 100644
--- a/arch/mips/include/asm/mach-au1x00/gpio.h
+++ b/arch/mips/include/asm/mach-au1x00/gpio.h
@@ -1,33 +1,10 @@
-#ifndef _AU1XXX_GPIO_H_
-#define _AU1XXX_GPIO_H_
+#ifndef _ALCHEMY_GPIO_H_
+#define _ALCHEMY_GPIO_H_
 
-#include <linux/types.h>
+#if defined(CONFIG_ALCHEMY_GPIO_AU1000)
 
-#define AU1XXX_GPIO_BASE	200
+#include <asm/mach-au1x00/gpio-au1000.h>
 
-/* GPIO bank 1 offsets */
-#define AU1000_GPIO1_TRI_OUT	0x0100
-#define AU1000_GPIO1_OUT	0x0108
-#define AU1000_GPIO1_ST		0x0110
-#define AU1000_GPIO1_CLR	0x010C
+#endif
 
-/* GPIO bank 2 offsets */
-#define AU1000_GPIO2_DIR	0x00
-#define AU1000_GPIO2_RSVD	0x04
-#define AU1000_GPIO2_OUT	0x08
-#define AU1000_GPIO2_ST		0x0C
-#define AU1000_GPIO2_INT	0x10
-#define AU1000_GPIO2_EN		0x14
-
-#define GPIO2_OUT_EN_MASK	0x00010000
-
-#define gpio_to_irq(gpio)	NULL
-
-#define gpio_get_value __gpio_get_value
-#define gpio_set_value __gpio_set_value
-
-#define gpio_cansleep __gpio_cansleep
-
-#include <asm-generic/gpio.h>
-
-#endif /* _AU1XXX_GPIO_H_ */
+#endif	/* _ALCHEMY_GPIO_H_ */