brcm47xx: use libgpio instaed of implementing the gpio interface ourself.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32992 3c298f89-4303-0410-b956-a3cf2f4a3e73

13 files changed, 810 insertions, 377 deletions

diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
index 090fc5e3d5..cf6d789c29 100644
--- a/package/broadcom-diag/src/diag.c
+++ b/package/broadcom-diag/src/diag.c
@@ -156,9 +156,9 @@ static void __init bcm4780_init(void) {
 
 		/* Enables GPIO 3 that controls HDD and led power on ASUS WL-700gE */
 		printk(MODULE_NAME ": Spinning up HDD and enabling leds\n");
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 
 		/* Wait 5s, so the HDD can spin up */
 		set_current_state(TASK_INTERRUPTIBLE);
@@ -168,14 +168,14 @@ static void __init bcm4780_init(void) {
 static void __init NetCenter_init(void) {
 		/* unset pin 6 (+12V) */
 		int pin = 1 << 6;
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 		/* unset pin 1 (turn off red led, blue will light alone if +5V comes up) */
 		pin = 1 << 1;
-		gpio_outen(pin, pin);
-		gpio_control(pin, 0);
-		gpio_out(pin, pin);
+		bcm47xx_gpio_outen(pin, pin);
+		bcm47xx_gpio_control(pin, 0);
+		bcm47xx_gpio_out(pin, pin);
 		/* unset pin 3 (+5V) and wait 5 seconds (harddisk spin up) */
 		bcm4780_init();
 }
@@ -184,9 +184,9 @@ static void __init bcm57xx_init(void) {
 	int pin = 1 << 2;
 
 	/* FIXME: switch comes up, but port mappings/vlans not right */
-	gpio_outen(pin, pin);
-	gpio_control(pin, 0);
-	gpio_out(pin, pin);
+	bcm47xx_gpio_outen(pin, pin);
+	bcm47xx_gpio_control(pin, 0);
+	bcm47xx_gpio_out(pin, pin);
 }
 
 static struct platform_t __initdata platforms[] = {
@@ -1283,6 +1283,42 @@ static struct platform_t __init *platform_detect(void)
 	return NULL;
 }
 
+static inline void ssb_maskset32(struct ssb_device *dev,
+				  u16 offset, u32 mask, u32 set)
+{
+	ssb_write32(dev, offset, (ssb_read32(dev, offset) & mask) | set);
+}
+
+static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
+{
+	int irq;
+
+	irq = gpio_to_irq(0);
+	if (irq == -EINVAL) return;
+	
+	if (enabled) {
+		if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
+			return;
+	} else {
+		free_irq(irq, handler);
+	}
+
+	switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+	case BCM47XX_BUS_TYPE_SSB:
+		if (bcm47xx_bus.ssb.chipco.dev)
+			ssb_maskset32(bcm47xx_bus.ssb.chipco.dev, SSB_CHIPCO_IRQMASK, ~SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
+		break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		if (bcm47xx_bus.bcma.bus.drv_cc.core)
+			bcma_maskset32(bcm47xx_bus.bcma.bus.drv_cc.core, BCMA_CC_IRQMASK, ~BCMA_CC_IRQ_GPIO, (enabled ? BCMA_CC_IRQ_GPIO : 0));
+		break;
+#endif
+	}
+}
+
 static void register_buttons(struct button_t *b)
 {
 	for (; b->name; b++)
@@ -1290,18 +1326,18 @@ static void register_buttons(struct button_t *b)
 
 	platform.button_mask &= ~gpiomask;
 
-	gpio_outen(platform.button_mask, 0);
-	gpio_control(platform.button_mask, 0);
-	platform.button_polarity = gpio_in() & platform.button_mask;
-	gpio_intpolarity(platform.button_mask, platform.button_polarity);
-	gpio_setintmask(platform.button_mask, platform.button_mask);
+	bcm47xx_gpio_outen(platform.button_mask, 0);
+	bcm47xx_gpio_control(platform.button_mask, 0);
+	platform.button_polarity = bcm47xx_gpio_in(~0) & platform.button_mask;
+	bcm47xx_gpio_polarity(platform.button_mask, platform.button_polarity);
+	bcm47xx_gpio_intmask(platform.button_mask, platform.button_mask);
 
 	gpio_set_irqenable(1, button_handler);
 }
 
 static void unregister_buttons(struct button_t *b)
 {
-	gpio_setintmask(platform.button_mask, 0);
+	bcm47xx_gpio_intmask(platform.button_mask, 0);
 
 	gpio_set_irqenable(0, button_handler);
 }
@@ -1361,12 +1397,12 @@ static irqreturn_t button_handler(int irq, void *dev_id)
 	struct button_t *b;
 	u32 in, changed;
 
-	in = gpio_in() & platform.button_mask;
-	gpio_intpolarity(platform.button_mask, in);
+	in = bcm47xx_gpio_in(~0) & platform.button_mask;
+	bcm47xx_gpio_polarity(platform.button_mask, in);
 	changed = platform.button_polarity ^ in;
 	platform.button_polarity = in;
 
-	changed &= ~gpio_outen(0, 0);
+	changed &= ~bcm47xx_gpio_outen(0, 0);
 
 	for (b = platform.buttons; b->name; b++) {
 		struct event_t *event;
@@ -1422,10 +1458,10 @@ static void register_leds(struct led_t *l)
 		}
 	}
 
-	gpio_outen(mask, oe_mask);
-	gpio_control(mask, 0);
-	gpio_out(mask, val);
-	gpio_setintmask(mask, 0);
+	bcm47xx_gpio_outen(mask, oe_mask);
+	bcm47xx_gpio_control(mask, 0);
+	bcm47xx_gpio_out(mask, val);
+	bcm47xx_gpio_intmask(mask, 0);
 }
 
 static void unregister_leds(struct led_t *l)
@@ -1438,7 +1474,11 @@ static void unregister_leds(struct led_t *l)
 
 static void set_led_extif(struct led_t *led)
 {
-	gpio_set_extif(led->gpio, led->state);
+	volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
+	if (led->state)
+		*addr = 0xFF;
+	else
+		*addr;
 }
 
 static void led_flash(unsigned long dummy) {
@@ -1460,11 +1500,11 @@ static void led_flash(unsigned long dummy) {
 
 	mask &= ~gpiomask;
 	if (mask) {
-		u32 val = ~gpio_in();
+		u32 val = ~bcm47xx_gpio_in(~0);
 
-		gpio_outen(mask, mask);
-		gpio_control(mask, 0);
-		gpio_out(mask, val);
+		bcm47xx_gpio_outen(mask, mask);
+		bcm47xx_gpio_control(mask, 0);
+		bcm47xx_gpio_out(mask, val);
 	}
 	if (mask || extif_blink) {
 		mod_timer(&led_timer, jiffies + FLASH_TIME);
@@ -1491,7 +1531,7 @@ static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t
 					if (led->gpio & GPIO_TYPE_EXTIF) {
 						len = sprintf(page, "%d\n", led->state);
 					} else {
-						u32 in = (gpio_in() & led->gpio ? 1 : 0);
+						u32 in = (bcm47xx_gpio_in(~0) & led->gpio ? 1 : 0);
 						u8 p = (led->polarity == NORMAL ? 0 : 1);
 						len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
 					}
@@ -1555,9 +1595,9 @@ static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count,
 						led->state = p ^ ((page[0] == '1') ? 1 : 0);
 						set_led_extif(led);
 					} else {
-						gpio_outen(led->gpio, led->gpio);
-						gpio_control(led->gpio, 0);
-						gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
+						bcm47xx_gpio_outen(led->gpio, led->gpio);
+						bcm47xx_gpio_control(led->gpio, 0);
+						bcm47xx_gpio_out(led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0));
 					}
 				}
 				break;
diff --git a/package/broadcom-diag/src/gpio.h b/package/broadcom-diag/src/gpio.h
index 4e382edeeb..d0e3e06c8a 100644
--- a/package/broadcom-diag/src/gpio.h
+++ b/package/broadcom-diag/src/gpio.h
@@ -6,150 +6,6 @@
 #include <linux/gpio.h>
 #include <bcm47xx.h>
 
-static inline u32 gpio_in(void)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_in(&bcm47xx_bus.ssb, ~0);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, ~0);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_out(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_outen(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
-		return 0;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-		return 0;
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_control(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_control(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_control(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_setintmask(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_intpolarity(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-#ifdef CONFIG_BCM47XX_SSB
-static inline u32 __ssb_write32_masked(struct ssb_device *dev, u16 offset,
-				       u32 mask, u32 value)
-{
-	value &= mask;
-	value |= ssb_read32(dev, offset) & ~mask;
-	ssb_write32(dev, offset, value);
-	return value;
-}
-#endif
-
-#ifdef CONFIG_BCM47XX_BCMA
-static inline u32 __bcma_write32_masked(struct bcma_device *dev, u16 offset,
-				       u32 mask, u32 value)
-{
-	value &= mask;
-	value |= bcma_read32(dev, offset) & ~mask;
-	bcma_write32(dev, offset, value);
-	return value;
-}
-#endif
-
-static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
-{
-	int irq;
-
-	irq = gpio_to_irq(0);
-	if (irq == -EINVAL) return;
-	
-	if (enabled) {
-		if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
-			return;
-	} else {
-		free_irq(irq, handler);
-	}
-
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		if (bcm47xx_bus.ssb.chipco.dev)
-			__ssb_write32_masked(bcm47xx_bus.ssb.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
-		break;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		if (bcm47xx_bus.bcma.bus.drv_cc.core)
-			__bcma_write32_masked(bcm47xx_bus.bcma.bus.drv_cc.core, BCMA_CC_IRQMASK, BCMA_CC_IRQ_GPIO, (enabled ? BCMA_CC_IRQ_GPIO : 0));
-		break;
-#endif
-	}
-}
-
 #define EXTIF_ADDR 0x1f000000
 #define EXTIF_UART (EXTIF_ADDR + 0x00800000)
 
@@ -157,13 +13,4 @@ static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
 #define GPIO_TYPE_EXTIF 	(0x1 << 24)
 #define GPIO_TYPE_MASK  	(0xf << 24)
 
-static inline void gpio_set_extif(int gpio, int value)
-{
-	volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK);
-	if (value)
-		*addr = 0xFF;
-	else
-		*addr;
-}
-
 #endif /* __DIAG_GPIO_H */
diff --git a/package/switch/src/gpio-bcm947xx.h b/package/switch/src/gpio-bcm947xx.h
deleted file mode 100644
index 23c221da87..0000000000
--- a/package/switch/src/gpio-bcm947xx.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef __SWITCH_GPIO_H
-#define __SWITCH_GPIO_H
-
-#include <linux/ssb/ssb_embedded.h>
-#include <linux/bcma/bcma_driver_chipcommon.h>
-#include <bcm47xx.h>
-
-static inline u32 gpio_in(void)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_in(&bcm47xx_bus.ssb, ~0);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc, ~0);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_out(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-#endif
-	}
-	return -EINVAL;
-}
-
-static inline u32 gpio_outen(u32 mask, u32 value)
-{
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
-		return 0;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, mask, value);
-		return 0;
-#endif
-	}
-	return -EINVAL;
-}
-
-#endif /* __SWITCH_GPIO_H */
diff --git a/package/switch/src/gpio.h b/package/switch/src/gpio.h
index 90bafd39ed..cb734f7b1b 100644
--- a/package/switch/src/gpio.h
+++ b/package/switch/src/gpio.h
@@ -9,16 +9,16 @@
 #define __GPIO_H
 
 #ifdef CONFIG_BCM47XX
-#include "gpio-bcm947xx.h"
+#include <linux/gpio.h>
 #else
 #warning "Unsupported configuration."
 
-#define gpio_in()			(-1U)
-#define gpio_out(mask, value)		(-1U)
-#define gpio_outen(mask, value)		(-1U)
-#define gpio_control(mask, value)	(-1U)
-#define gpio_intmask(mask, value)	(-1U)
-#define gpio_intpolarity(mask, value)	(-1U)
+#define bcm47xx_gpio_in(mask)			(-1U)
+#define bcm47xx_gpio_out(mask, value)		(-1U)
+#define bcm47xx_gpio_outen(mask, value)		(-1U)
+#define bcm47xx_gpio_control(mask, value)	(-1U)
+#define bcm47xx_gpio_intmask(mask, value)	(-1U)
+#define bcm47xx_gpio_polarity(mask, value)	(-1U)
 
 #endif
 
diff --git a/package/switch/src/switch-adm.c b/package/switch/src/switch-adm.c
index 3826ca57f8..9a6d32b1ef 100644
--- a/package/switch/src/switch-adm.c
+++ b/package/switch/src/switch-adm.c
@@ -104,7 +104,7 @@ static void adm_write(int cs, char *buf, unsigned int bits)
 	int i, len = (bits + 7) / 8;
 	__u8 mask;
 
-	gpio_out(eecs, (cs ? eecs : 0));
+	bcm47xx_gpio_out(eecs, (cs ? eecs : 0));
 	udelay(EECK_EDGE_TIME);
 
 	/* Byte assemble from MSB to LSB */
@@ -112,25 +112,25 @@ static void adm_write(int cs, char *buf, unsigned int bits)
 		/* Bit bang from MSB to LSB */
 		for (mask = 0x80; mask && bits > 0; mask >>= 1, bits --) {
 			/* Clock low */
-			gpio_out(eesk, 0);
+			bcm47xx_gpio_out(eesk, 0);
 			udelay(EECK_EDGE_TIME);
 
 			/* Output on rising edge */
-			gpio_out(eedi, ((mask & buf[i]) ? eedi : 0));
+			bcm47xx_gpio_out(eedi, ((mask & buf[i]) ? eedi : 0));
 			udelay(EEDI_SETUP_TIME);
 
 			/* Clock high */
-			gpio_out(eesk, eesk);
+			bcm47xx_gpio_out(eesk, eesk);
 			udelay(EECK_EDGE_TIME);
 		}
 	}
 
 	/* Clock low */
-	gpio_out(eesk, 0);
+	bcm47xx_gpio_out(eesk, 0);
 	udelay(EECK_EDGE_TIME);
 
 	if (cs)
-		gpio_out(eecs, 0);
+		bcm47xx_gpio_out(eecs, 0);
 }
 
 
@@ -139,7 +139,7 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 	int i, len = (bits + 7) / 8;
 	__u8 mask;
 
-	gpio_out(eecs, (cs ? eecs : 0));
+	bcm47xx_gpio_out(eecs, (cs ? eecs : 0));
 	udelay(EECK_EDGE_TIME);
 
 	/* Byte assemble from MSB to LSB */
@@ -151,16 +151,16 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 			__u8 gp;
 
 			/* Clock low */
-			gpio_out(eesk, 0);
+			bcm47xx_gpio_out(eesk, 0);
 			udelay(EECK_EDGE_TIME);
 
 			/* Input on rising edge */
-			gp = gpio_in();
+			gp = bcm47xx_gpio_in(~0);
 			if (gp & eedi)
 				byte |= mask;
 
 			/* Clock high */
-			gpio_out(eesk, eesk);
+			bcm47xx_gpio_out(eesk, eesk);
 			udelay(EECK_EDGE_TIME);
 		}
 
@@ -168,11 +168,11 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 	}
 
 	/* Clock low */
-	gpio_out(eesk, 0);
+	bcm47xx_gpio_out(eesk, 0);
 	udelay(EECK_EDGE_TIME);
 
 	if (cs)
-		gpio_out(eecs, 0);
+		bcm47xx_gpio_out(eecs, 0);
 }
 
 
@@ -180,10 +180,10 @@ static void adm_read(int cs, char *buf, unsigned int bits)
 static void adm_enout(__u8 pins, __u8 val)
 {
 	/* Prepare GPIO output value */
-	gpio_out(pins, val);
+	bcm47xx_gpio_out(pins, val);
 
 	/* Enable GPIO outputs */
-	gpio_outen(pins, pins);
+	bcm47xx_gpio_outen(pins, pins);
 	udelay(EECK_EDGE_TIME);
 }
 
@@ -192,7 +192,7 @@ static void adm_enout(__u8 pins, __u8 val)
 static void adm_disout(__u8 pins)
 {
 	/* Disable GPIO outputs */
-	gpio_outen(pins, 0);
+	bcm47xx_gpio_outen(pins, 0);
 	udelay(EECK_EDGE_TIME);
 }
 
@@ -203,11 +203,11 @@ static void adm_adclk(int clocks)
 	int i;
 	for (i = 0; i < clocks; i++) {
 		/* Clock high */
-		gpio_out(eesk, eesk);
+		bcm47xx_gpio_out(eesk, eesk);
 		udelay(EECK_EDGE_TIME);
 
 		/* Clock low */
-		gpio_out(eesk, 0);
+		bcm47xx_gpio_out(eesk, 0);
 		udelay(EECK_EDGE_TIME);
 	}
 }
diff --git a/target/linux/brcm47xx/config-3.3 b/target/linux/brcm47xx/config-3.3
index 4ee8142f37..e207cf1743 100644
--- a/target/linux/brcm47xx/config-3.3
+++ b/target/linux/brcm47xx/config-3.3
@@ -1,6 +1,7 @@
 CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
 CONFIG_ARCH_DISCARD_MEMBLOCK=y
 CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
 # CONFIG_ARPD is not set
 CONFIG_B44=y
@@ -15,6 +16,7 @@ CONFIG_BCMA=y
 CONFIG_BCMA_BLOCKIO=y
 CONFIG_BCMA_DEBUG=y
 CONFIG_BCMA_DRIVER_GMAC_CMN=y
+CONFIG_BCMA_DRIVER_GPIO=y
 CONFIG_BCMA_DRIVER_MIPS=y
 CONFIG_BCMA_DRIVER_PCI_HOSTMODE=y
 CONFIG_BCMA_HOST_PCI=y
@@ -50,6 +52,8 @@ CONFIG_GENERIC_CMOS_UPDATE=y
 CONFIG_GENERIC_GPIO=y
 CONFIG_GENERIC_IRQ_SHOW=y
 CONFIG_GENERIC_PCI_IOMAP=y
+# CONFIG_GENERIC_PWM is not set
+CONFIG_GPIOLIB=y
 CONFIG_HARDWARE_WATCHPOINTS=y
 CONFIG_HAS_DMA=y
 CONFIG_HAS_IOMEM=y
diff --git a/target/linux/brcm47xx/patches-3.3/050-bcma-export-needed-gpio-functions.patch b/target/linux/brcm47xx/patches-3.3/050-bcma-export-needed-gpio-functions.patch
deleted file mode 100644
index 7d172d4c93..0000000000
--- a/target/linux/brcm47xx/patches-3.3/050-bcma-export-needed-gpio-functions.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From f6e41db3ee7ead99e1398def222c14893fc265de Mon Sep 17 00:00:00 2001
-From: Hauke Mehrtens <hauke@hauke-m.de>
-Date: Thu, 4 Aug 2011 21:09:48 +0200
-Subject: [PATCH 26/26] bcma: export needed gpio functions
-
-
-Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
----
- drivers/bcma/driver_chipcommon.c |    5 +++++
- 1 files changed, 5 insertions(+), 0 deletions(-)
-
---- a/drivers/bcma/driver_chipcommon.c
-+++ b/drivers/bcma/driver_chipcommon.c
-@@ -81,16 +81,19 @@ u32 bcma_chipco_gpio_in(struct bcma_drv_
- {
- 	return bcma_cc_read32(cc, BCMA_CC_GPIOIN) & mask;
- }
-+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_in);
- 
- u32 bcma_chipco_gpio_out(struct bcma_drv_cc *cc, u32 mask, u32 value)
- {
- 	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUT, mask, value);
- }
-+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_out);
- 
- u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value)
- {
- 	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUTEN, mask, value);
- }
-+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_outen);
- 
- u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value)
- {
-@@ -102,11 +105,13 @@ u32 bcma_chipco_gpio_intmask(struct bcma
- {
- 	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOIRQ, mask, value);
- }
-+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_intmask);
- 
- u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value)
- {
- 	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOPOL, mask, value);
- }
-+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_polarity);
- 
- #ifdef CONFIG_BCMA_DRIVER_MIPS
- void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
diff --git a/target/linux/brcm47xx/patches-3.3/140-bcm47xx-add-gpio_set_debounce.patch b/target/linux/brcm47xx/patches-3.3/140-bcm47xx-add-gpio_set_debounce.patch
deleted file mode 100644
index c37bb13d14..0000000000
--- a/target/linux/brcm47xx/patches-3.3/140-bcm47xx-add-gpio_set_debounce.patch
+++ /dev/null
@@ -1,12 +0,0 @@
---- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
-+++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
-@@ -151,5 +151,9 @@ static inline int gpio_polarity(unsigned
- 	return -EINVAL;
- }
- 
-+static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-+{
-+	return -ENOSYS;
-+}
- 
- #endif /* __BCM47XX_GPIO_H */
diff --git a/target/linux/brcm47xx/patches-3.3/220-add_gpio_request_one.patch b/target/linux/brcm47xx/patches-3.3/220-add_gpio_request_one.patch
deleted file mode 100644
index 00005e2d5a..0000000000
--- a/target/linux/brcm47xx/patches-3.3/220-add_gpio_request_one.patch
+++ /dev/null
@@ -1,51 +0,0 @@
---- a/arch/mips/bcm47xx/gpio.c
-+++ b/arch/mips/bcm47xx/gpio.c
-@@ -7,6 +7,7 @@
-  */
- 
- #include <linux/export.h>
-+#include <linux/gpio.h>
- #include <linux/ssb/ssb.h>
- #include <linux/ssb/ssb_driver_chipcommon.h>
- #include <linux/ssb/ssb_driver_extif.h>
-@@ -100,3 +101,30 @@ int gpio_to_irq(unsigned gpio)
- 	return -EINVAL;
- }
- EXPORT_SYMBOL_GPL(gpio_to_irq);
-+
-+/**
-+ * gpio_request_one - request a single GPIO with initial configuration
-+ * @gpio:	the GPIO number
-+ * @flags:	GPIO configuration as specified by GPIOF_*
-+ * @label:	a literal description string of this GPIO
-+ */
-+int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
-+{
-+	int err;
-+
-+	err = gpio_request(gpio, label);
-+	if (err)
-+		return err;
-+
-+	if (flags & GPIOF_DIR_IN)
-+		err = gpio_direction_input(gpio);
-+	else
-+		err = gpio_direction_output(gpio,
-+				(flags & GPIOF_INIT_HIGH) ? 1 : 0);
-+
-+	if (err)
-+		gpio_free(gpio);
-+
-+	return err;
-+}
-+EXPORT_SYMBOL_GPL(gpio_request_one);
---- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
-+++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
-@@ -19,6 +19,7 @@
- extern int gpio_request(unsigned gpio, const char *label);
- extern void gpio_free(unsigned gpio);
- extern int gpio_to_irq(unsigned gpio);
-+extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
- 
- static inline int gpio_get_value(unsigned gpio)
- {
diff --git a/target/linux/brcm47xx/patches-3.3/500-ssb-add-function-to-return-number-of-gpio-lines.patch b/target/linux/brcm47xx/patches-3.3/500-ssb-add-function-to-return-number-of-gpio-lines.patch
new file mode 100644
index 0000000000..f1b483e4a4
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/500-ssb-add-function-to-return-number-of-gpio-lines.patch
@@ -0,0 +1,40 @@
+--- a/drivers/ssb/embedded.c
++++ b/drivers/ssb/embedded.c
+@@ -136,6 +136,18 @@ u32 ssb_gpio_polarity(struct ssb_bus *bu
+ }
+ EXPORT_SYMBOL(ssb_gpio_polarity);
+ 
++int ssb_gpio_count(struct ssb_bus *bus)
++{
++	if (ssb_chipco_available(&bus->chipco))
++		return SSB_GPIO_CHIPCO_LINES;
++	else if (ssb_extif_available(&bus->extif))
++		return SSB_GPIO_EXTIF_LINES;
++	else
++		SSB_WARN_ON(1);
++	return 0;
++}
++EXPORT_SYMBOL(ssb_gpio_count);
++
+ #ifdef CONFIG_SSB_DRIVER_GIGE
+ static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data)
+ {
+--- a/include/linux/ssb/ssb_embedded.h
++++ b/include/linux/ssb/ssb_embedded.h
+@@ -7,6 +7,9 @@
+ 
+ extern int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks);
+ 
++#define SSB_GPIO_EXTIF_LINES	5
++#define SSB_GPIO_CHIPCO_LINES	16
++
+ /* Generic GPIO API */
+ u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask);
+ u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value);
+@@ -14,5 +17,6 @@ u32 ssb_gpio_outen(struct ssb_bus *bus,
+ u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value);
+ u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value);
+ u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value);
++int ssb_gpio_count(struct ssb_bus *bus);
+ 
+ #endif /* LINUX_SSB_EMBEDDED_H_ */
diff --git a/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
new file mode 100644
index 0000000000..1fd2cffffb
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
@@ -0,0 +1,170 @@
+--- a/drivers/bcma/Kconfig
++++ b/drivers/bcma/Kconfig
+@@ -39,6 +39,11 @@ config BCMA_HOST_SOC
+ 	depends on BCMA_DRIVER_MIPS
+ 	select USB_HCD_BCMA if USB_EHCI_HCD || USB_OHCI_HCD
+ 
++config BCMA_DRIVER_GPIO
++	bool
++	depends on BCMA_DRIVER_MIPS
++	default y
++
+ config BCMA_SFLASH
+ 	bool
+ 	depends on BCMA_DRIVER_MIPS
+--- a/drivers/bcma/Makefile
++++ b/drivers/bcma/Makefile
+@@ -6,6 +6,7 @@ bcma-y					+= driver_pci.o
+ bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE)	+= driver_pci_host.o
+ bcma-$(CONFIG_BCMA_DRIVER_MIPS)		+= driver_mips.o
+ bcma-$(CONFIG_BCMA_DRIVER_GMAC_CMN)	+= driver_gmac_cmn.o
++bcma-$(CONFIG_BCMA_DRIVER_GPIO)		+= driver_gpio.o
+ bcma-$(CONFIG_BCMA_HOST_PCI)		+= host_pci.o
+ bcma-$(CONFIG_BCMA_HOST_SOC)		+= host_soc.o
+ obj-$(CONFIG_BCMA)			+= bcma.o
+--- /dev/null
++++ b/drivers/bcma/driver_gpio.c
+@@ -0,0 +1,96 @@
++/*
++ * Broadcom specific AMBA
++ * GPIO driver for SoCs
++ *
++ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include <linux/export.h>
++#include <linux/bcma/bcma.h>
++#include <linux/bcma/bcma_driver_gpio.h>
++
++u32 bcma_gpio_in(struct bcma_bus *bus, u32 mask)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_in(&bus->drv_cc, mask);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_in);
++
++u32 bcma_gpio_out(struct bcma_bus *bus, u32 mask, u32 value)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_out(&bus->drv_cc, mask, value);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_out);
++
++u32 bcma_gpio_outen(struct bcma_bus *bus, u32 mask, u32 value)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_outen(&bus->drv_cc, mask, value);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_outen);
++
++u32 bcma_gpio_control(struct bcma_bus *bus, u32 mask, u32 value)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_control(&bus->drv_cc, mask, value);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_control);
++
++u32 bcma_gpio_intmask(struct bcma_bus *bus, u32 mask, u32 value)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_intmask(&bus->drv_cc, mask, value);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_intmask);
++
++u32 bcma_gpio_polarity(struct bcma_bus *bus, u32 mask, u32 value)
++{
++	unsigned long flags;
++	u32 res = 0;
++
++	spin_lock_irqsave(&bus->gpio_lock, flags);
++	res = bcma_chipco_gpio_polarity(&bus->drv_cc, mask, value);
++	spin_unlock_irqrestore(&bus->gpio_lock, flags);
++
++	return res;
++}
++EXPORT_SYMBOL(bcma_gpio_polarity);
++
++int bcma_gpio_count(struct bcma_bus *bus)
++{
++	return BCMA_GPIO_CC_LINES;
++}
++EXPORT_SYMBOL(bcma_gpio_count);
+--- a/drivers/bcma/scan.c
++++ b/drivers/bcma/scan.c
+@@ -422,6 +422,10 @@ void bcma_init_bus(struct bcma_bus *bus)
+ 	if (bus->init_done)
+ 		return;
+ 
++#ifdef CONFIG_BCMA_DRIVER_GPIO
++	spin_lock_init(&bus->gpio_lock);
++#endif
++
+ 	INIT_LIST_HEAD(&bus->cores);
+ 	bus->nr_cores = 0;
+ 
+--- a/include/linux/bcma/bcma.h
++++ b/include/linux/bcma/bcma.h
+@@ -255,6 +255,11 @@ struct bcma_bus {
+ 	struct bcma_drv_mips drv_mips;
+ 	struct bcma_drv_gmac_cmn drv_gmac_cmn;
+ 
++#ifdef CONFIG_BCMA_DRIVER_GPIO
++	/* Lock for GPIO register access. */
++	spinlock_t gpio_lock;
++#endif /* CONFIG_BCMA_DRIVER_GPIO */
++
+ 	/* We decided to share SPROM struct with SSB as long as we do not need
+ 	 * any hacks for BCMA. This simplifies drivers code. */
+ 	struct ssb_sprom sprom;
+--- /dev/null
++++ b/include/linux/bcma/bcma_driver_gpio.h
+@@ -0,0 +1,17 @@
++#ifndef LINUX_BCMA_DRIVER_GPIO_H_
++#define LINUX_BCMA_DRIVER_GPIO_H_
++
++#include <linux/types.h>
++#include <linux/bcma/bcma.h>
++
++#define BCMA_GPIO_CC_LINES	16
++
++u32 bcma_gpio_in(struct bcma_bus *bus, u32 mask);
++u32 bcma_gpio_out(struct bcma_bus *bus, u32 mask, u32 value);
++u32 bcma_gpio_outen(struct bcma_bus *bus, u32 mask, u32 value);
++u32 bcma_gpio_control(struct bcma_bus *bus, u32 mask, u32 value);
++u32 bcma_gpio_intmask(struct bcma_bus *bus, u32 mask, u32 value);
++u32 bcma_gpio_polarity(struct bcma_bus *bus, u32 mask, u32 value);
++int bcma_gpio_count(struct bcma_bus *bus);
++
++#endif /* LINUX_BCMA_DRIVER_GPIO_H_ */
diff --git a/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch b/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch
new file mode 100644
index 0000000000..4aa2e46d77
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch
@@ -0,0 +1,490 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -92,6 +92,7 @@ config ATH79
+ 
+ config BCM47XX
+ 	bool "Broadcom BCM47XX based boards"
++	select ARCH_REQUIRE_GPIOLIB
+ 	select BOOT_RAW
+ 	select CEVT_R4K
+ 	select CSRC_R4K
+@@ -100,7 +101,6 @@ config BCM47XX
+ 	select IRQ_CPU
+ 	select SYS_SUPPORTS_32BIT_KERNEL
+ 	select SYS_SUPPORTS_LITTLE_ENDIAN
+-	select GENERIC_GPIO
+ 	select CFE
+ 	help
+ 	 Support for BCM47XX based boards
+--- a/arch/mips/bcm47xx/gpio.c
++++ b/arch/mips/bcm47xx/gpio.c
+@@ -4,81 +4,198 @@
+  * for more details.
+  *
+  * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
++ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
++ *
++ * Parts of this file are based on Atheros AR71XX/AR724X/AR913X GPIO
+  */
+ 
+ #include <linux/export.h>
++#include <linux/gpio.h>
+ #include <linux/ssb/ssb.h>
+-#include <linux/ssb/ssb_driver_chipcommon.h>
+-#include <linux/ssb/ssb_driver_extif.h>
+-#include <asm/mach-bcm47xx/bcm47xx.h>
+-#include <asm/mach-bcm47xx/gpio.h>
++#include <linux/ssb/ssb_embedded.h>
++#include <linux/bcma/bcma.h>
++#include <linux/bcma/bcma_driver_gpio.h>
++
++#include <bcm47xx.h>
+ 
+-#if (BCM47XX_CHIPCO_GPIO_LINES > BCM47XX_EXTIF_GPIO_LINES)
+-static DECLARE_BITMAP(gpio_in_use, BCM47XX_CHIPCO_GPIO_LINES);
+-#else
+-static DECLARE_BITMAP(gpio_in_use, BCM47XX_EXTIF_GPIO_LINES);
+-#endif
+ 
+-int gpio_request(unsigned gpio, const char *tag)
++static unsigned long bcm47xx_gpio_count;
++
++/* low level BCM47xx gpio api */
++u32 bcm47xx_gpio_in(u32 mask)
+ {
+ 	switch (bcm47xx_bus_type) {
+ #ifdef CONFIG_BCM47XX_SSB
+ 	case BCM47XX_BUS_TYPE_SSB:
+-		if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) &&
+-		    ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES))
+-			return -EINVAL;
+-
+-		if (ssb_extif_available(&bcm47xx_bus.ssb.extif) &&
+-		    ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES))
+-			return -EINVAL;
++		return ssb_gpio_in(&bcm47xx_bus.ssb, mask);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_gpio_in(&bcm47xx_bus.bcma.bus, mask);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_in);
+ 
+-		if (test_and_set_bit(gpio, gpio_in_use))
+-			return -EBUSY;
++u32 bcm47xx_gpio_out(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_out(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_gpio_out(&bcm47xx_bus.bcma.bus, mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_out);
+ 
+-		return 0;
++u32 bcm47xx_gpio_outen(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_outen(&bcm47xx_bus.ssb, mask, value);
+ #endif
+ #ifdef CONFIG_BCM47XX_BCMA
+ 	case BCM47XX_BUS_TYPE_BCMA:
+-		if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
+-			return -EINVAL;
++		return bcma_gpio_outen(&bcm47xx_bus.bcma.bus, mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_outen);
+ 
+-		if (test_and_set_bit(gpio, gpio_in_use))
+-			return -EBUSY;
++u32 bcm47xx_gpio_control(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_control(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_gpio_control(&bcm47xx_bus.bcma.bus, mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_control);
+ 
+-		return 0;
++u32 bcm47xx_gpio_intmask(u32 mask, u32 value)
++{
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		return ssb_gpio_intmask(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_gpio_intmask(&bcm47xx_bus.bcma.bus, mask, value);
+ #endif
+ 	}
+ 	return -EINVAL;
+ }
+-EXPORT_SYMBOL(gpio_request);
++EXPORT_SYMBOL(bcm47xx_gpio_intmask);
+ 
+-void gpio_free(unsigned gpio)
++u32 bcm47xx_gpio_polarity(u32 mask, u32 value)
+ {
+ 	switch (bcm47xx_bus_type) {
+ #ifdef CONFIG_BCM47XX_SSB
+ 	case BCM47XX_BUS_TYPE_SSB:
+-		if (ssb_chipco_available(&bcm47xx_bus.ssb.chipco) &&
+-		    ((unsigned)gpio >= BCM47XX_CHIPCO_GPIO_LINES))
+-			return;
++		return ssb_gpio_polarity(&bcm47xx_bus.ssb, mask, value);
++#endif
++#ifdef CONFIG_BCM47XX_BCMA
++	case BCM47XX_BUS_TYPE_BCMA:
++		return bcma_gpio_polarity(&bcm47xx_bus.bcma.bus, mask, value);
++#endif
++	}
++	return -EINVAL;
++}
++EXPORT_SYMBOL(bcm47xx_gpio_polarity);
++
++
++
++static int bcm47xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
++{
++	return bcm47xx_gpio_in(1 << gpio);
++}
++
++static void bcm47xx_gpio_set_value(struct gpio_chip *chip,
++				   unsigned gpio, int value)
++{
++	bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
++}
++
++static int bcm47xx_gpio_direction_input(struct gpio_chip *chip,
++					unsigned gpio)
++{
++	bcm47xx_gpio_outen(1 << gpio, 0);
++	return 0;
++}
++
++static int bcm47xx_gpio_direction_output(struct gpio_chip *chip,
++					 unsigned gpio, int value)
++{
++	/* first set the gpio out value */
++	bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
++	/* then set the gpio mode */
++	bcm47xx_gpio_outen(1 << gpio, 1 << gpio);
++	return 0;
++}
++
++static struct gpio_chip bcm47xx_gpio_chip = {
++	.label			= "bcm47xx",
++	.get			= bcm47xx_gpio_get_value,
++	.set			= bcm47xx_gpio_set_value,
++	.direction_input	= bcm47xx_gpio_direction_input,
++	.direction_output	= bcm47xx_gpio_direction_output,
++	.base			= 0,
++};
+ 
+-		if (ssb_extif_available(&bcm47xx_bus.ssb.extif) &&
+-		    ((unsigned)gpio >= BCM47XX_EXTIF_GPIO_LINES))
+-			return;
++void __init bcm47xx_gpio_init(void)
++{
++	int err;
+ 
+-		clear_bit(gpio, gpio_in_use);
+-		return;
++	switch (bcm47xx_bus_type) {
++#ifdef CONFIG_BCM47XX_SSB
++	case BCM47XX_BUS_TYPE_SSB:
++		bcm47xx_gpio_count = ssb_gpio_count(&bcm47xx_bus.ssb);
+ #endif
+ #ifdef CONFIG_BCM47XX_BCMA
+ 	case BCM47XX_BUS_TYPE_BCMA:
+-		if (gpio >= BCM47XX_CHIPCO_GPIO_LINES)
+-			return;
+-
+-		clear_bit(gpio, gpio_in_use);
+-		return;
++		bcm47xx_gpio_count = bcma_gpio_count(&bcm47xx_bus.bcma.bus);
+ #endif
+ 	}
++
++	bcm47xx_gpio_chip.ngpio = bcm47xx_gpio_count;
++
++	err = gpiochip_add(&bcm47xx_gpio_chip);
++	if (err)
++		panic("cannot add BCM47xx GPIO chip, error=%d", err);
+ }
+-EXPORT_SYMBOL(gpio_free);
++
++int gpio_get_value(unsigned gpio)
++{
++	if (gpio < bcm47xx_gpio_count)
++		return bcm47xx_gpio_in(1 << gpio);
++
++	return __gpio_get_value(gpio);
++}
++EXPORT_SYMBOL(gpio_get_value);
++
++void gpio_set_value(unsigned gpio, int value)
++{
++	if (gpio < bcm47xx_gpio_count)
++		bcm47xx_gpio_out(1 << gpio, value ? 1 << gpio : 0);
++	else
++		__gpio_set_value(gpio, value);
++}
++EXPORT_SYMBOL(gpio_set_value);
+ 
+ int gpio_to_irq(unsigned gpio)
+ {
+@@ -99,4 +216,11 @@ int gpio_to_irq(unsigned gpio)
+ 	}
+ 	return -EINVAL;
+ }
+-EXPORT_SYMBOL_GPL(gpio_to_irq);
++EXPORT_SYMBOL(gpio_to_irq);
++
++int irq_to_gpio(unsigned irq)
++{
++	/* FIXME */
++	return -EINVAL;
++}
++EXPORT_SYMBOL(irq_to_gpio);
+--- a/arch/mips/bcm47xx/setup.c
++++ b/arch/mips/bcm47xx/setup.c
+@@ -344,6 +344,8 @@ void __init plat_mem_setup(void)
+ 	_machine_restart = bcm47xx_machine_restart;
+ 	_machine_halt = bcm47xx_machine_halt;
+ 	pm_power_off = bcm47xx_machine_halt;
++
++	bcm47xx_gpio_init();
+ }
+ 
+ static int __init bcm47xx_register_bus_complete(void)
+--- a/arch/mips/bcm47xx/wgt634u.c
++++ b/arch/mips/bcm47xx/wgt634u.c
+@@ -133,6 +133,7 @@ static int __init wgt634u_init(void)
+ 	 * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
+ 	 */
+ 	u8 *et0mac;
++	int err;
+ 
+ 	if (bcm47xx_bus_type != BCM47XX_BUS_TYPE_SSB)
+ 		return -ENODEV;
+@@ -146,6 +147,12 @@ static int __init wgt634u_init(void)
+ 
+ 		printk(KERN_INFO "WGT634U machine detected.\n");
+ 
++		err = gpio_request(WGT634U_GPIO_RESET, "reset-buton");
++		if (err) {
++			printk(KERN_INFO "Can not register gpio fir reset button\n");
++			return 0;
++		}
++
+ 		if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
+ 				 gpio_interrupt, IRQF_SHARED,
+ 				 "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
+--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
++++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
+@@ -56,4 +56,6 @@ void bcm47xx_fill_bcma_boardinfo(struct
+ 				 const char *prefix);
+ #endif
+ 
++void bcm47xx_gpio_init(void);
++
+ #endif /* __ASM_BCM47XX_H */
+--- a/arch/mips/include/asm/mach-bcm47xx/gpio.h
++++ b/arch/mips/include/asm/mach-bcm47xx/gpio.h
+@@ -4,152 +4,39 @@
+  * for more details.
+  *
+  * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
++ * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
+  */
+ 
+ #ifndef __BCM47XX_GPIO_H
+ #define __BCM47XX_GPIO_H
+ 
+-#include <linux/ssb/ssb_embedded.h>
+-#include <linux/bcma/bcma.h>
+-#include <asm/mach-bcm47xx/bcm47xx.h>
+-
+-#define BCM47XX_EXTIF_GPIO_LINES	5
+-#define BCM47XX_CHIPCO_GPIO_LINES	16
+-
+-extern int gpio_request(unsigned gpio, const char *label);
+-extern void gpio_free(unsigned gpio);
+-extern int gpio_to_irq(unsigned gpio);
++#define ARCH_NR_GPIOS	64
++#include <asm-generic/gpio.h>
+ 
+-static inline int gpio_get_value(unsigned gpio)
+-{
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio);
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc,
+-					   1 << gpio);
+-#endif
+-	}
+-	return -EINVAL;
+-}
+-
+-#define gpio_get_value_cansleep	gpio_get_value
+-
+-static inline void gpio_set_value(unsigned gpio, int value)
+-{
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
+-			     value ? 1 << gpio : 0);
+-		return;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
+-				     value ? 1 << gpio : 0);
+-		return;
+-#endif
+-	}
+-}
+-
+-#define gpio_set_value_cansleep gpio_set_value
+-
+-static inline int gpio_cansleep(unsigned gpio)
+-{
+-	return 0;
+-}
++/* low level BCM47xx gpio api */
++u32 bcm47xx_gpio_in(u32 mask);
++u32 bcm47xx_gpio_out(u32 mask, u32 value);
++u32 bcm47xx_gpio_outen(u32 mask, u32 value);
++u32 bcm47xx_gpio_control(u32 mask, u32 value);
++u32 bcm47xx_gpio_intmask(u32 mask, u32 value);
++u32 bcm47xx_gpio_polarity(u32 mask, u32 value);
+ 
+-static inline int gpio_is_valid(unsigned gpio)
+-{
+-	return gpio < (BCM47XX_EXTIF_GPIO_LINES + BCM47XX_CHIPCO_GPIO_LINES);
+-}
++int gpio_to_irq(unsigned gpio);
++int irq_to_gpio(unsigned irq);
++int gpio_get_value(unsigned gpio);
++void gpio_set_value(unsigned gpio, int value);
+ 
+-
+-static inline int gpio_direction_input(unsigned gpio)
++static inline void gpio_intmask(unsigned gpio, int value)
+ {
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0);
+-		return 0;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
+-				       0);
+-		return 0;
+-#endif
+-	}
+-	return -EINVAL;
++	bcm47xx_gpio_intmask(1 << gpio, value ? 1 << gpio : 0);
+ }
+ 
+-static inline int gpio_direction_output(unsigned gpio, int value)
++static inline void gpio_polarity(unsigned gpio, int value)
+ {
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		/* first set the gpio out value */
+-		ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
+-			     value ? 1 << gpio : 0);
+-		/* then set the gpio mode */
+-		ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio);
+-		return 0;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		/* first set the gpio out value */
+-		bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
+-				     value ? 1 << gpio : 0);
+-		/* then set the gpio mode */
+-		bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
+-				       1 << gpio);
+-		return 0;
+-#endif
+-	}
+-	return -EINVAL;
++	bcm47xx_gpio_polarity(1 << gpio, value ? 1 << gpio : 0);
+ }
+ 
+-static inline int gpio_intmask(unsigned gpio, int value)
+-{
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		ssb_gpio_intmask(&bcm47xx_bus.ssb, 1 << gpio,
+-				 value ? 1 << gpio : 0);
+-		return 0;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
+-					 1 << gpio, value ? 1 << gpio : 0);
+-		return 0;
+-#endif
+-	}
+-	return -EINVAL;
+-}
+-
+-static inline int gpio_polarity(unsigned gpio, int value)
+-{
+-	switch (bcm47xx_bus_type) {
+-#ifdef CONFIG_BCM47XX_SSB
+-	case BCM47XX_BUS_TYPE_SSB:
+-		ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << gpio,
+-				  value ? 1 << gpio : 0);
+-		return 0;
+-#endif
+-#ifdef CONFIG_BCM47XX_BCMA
+-	case BCM47XX_BUS_TYPE_BCMA:
+-		bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
+-					  1 << gpio, value ? 1 << gpio : 0);
+-		return 0;
+-#endif
+-	}
+-	return -EINVAL;
+-}
+ 
++#define gpio_cansleep	__gpio_cansleep
+ 
+ #endif /* __BCM47XX_GPIO_H */
diff --git a/target/linux/brcm47xx/patches-3.3/812-disable_wgt634u_crap.patch b/target/linux/brcm47xx/patches-3.3/812-disable_wgt634u_crap.patch
index 76419e823c..6b44254017 100644
--- a/target/linux/brcm47xx/patches-3.3/812-disable_wgt634u_crap.patch
+++ b/target/linux/brcm47xx/patches-3.3/812-disable_wgt634u_crap.patch
@@ -7,7 +7,7 @@
 -obj-$(CONFIG_BCM47XX_SSB)	+= wgt634u.o
 --- a/arch/mips/bcm47xx/wgt634u.c
 +++ /dev/null
-@@ -1,170 +0,0 @@
+@@ -1,177 +0,0 @@
 -/*
 - * This file is subject to the terms and conditions of the GNU General Public
 - * License.  See the file "COPYING" in the main directory of this archive
@@ -143,6 +143,7 @@
 -	 * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
 -	 */
 -	u8 *et0mac;
+-	int err;
 -
 -	if (bcm47xx_bus_type != BCM47XX_BUS_TYPE_SSB)
 -		return -ENODEV;
@@ -156,6 +157,12 @@
 -
 -		printk(KERN_INFO "WGT634U machine detected.\n");
 -
+-		err = gpio_request(WGT634U_GPIO_RESET, "reset-buton");
+-		if (err) {
+-			printk(KERN_INFO "Can not register gpio fir reset button\n");
+-			return 0;
+-		}
+-
 -		if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
 -				 gpio_interrupt, IRQF_SHARED,
 -				 "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {