From: John Crispin <john@openwrt.org>
Date: Mon, 26 Sep 2011 09:35:02 +0000 (+0000)
Subject: [lantiq]
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0ac484313151ab69f66f6848a459c06a2c28de5a;p=openwrt%2Fsvn-archive%2Farchive.git

[lantiq]
* rebase 3.0 patches
* fold some fixes into existing patches

SVN-Revision: 28308
---

diff --git a/target/linux/lantiq/patches-3.0/020-xway-fix-mtd.patch b/target/linux/lantiq/patches-3.0/020-xway-fix-mtd.patch
index 051ba86cf4..d74fcb69d5 100644
--- a/target/linux/lantiq/patches-3.0/020-xway-fix-mtd.patch
+++ b/target/linux/lantiq/patches-3.0/020-xway-fix-mtd.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/mach-easy50601.c
 +++ b/arch/mips/lantiq/xway/mach-easy50601.c
-@@ -32,12 +32,7 @@
+@@ -32,12 +32,7 @@ static struct mtd_partition easy50601_pa
  	{
  		.name	= "linux",
  		.offset	= 0x20000,
@@ -16,7 +16,7 @@
  
 --- a/arch/mips/lantiq/xway/mach-easy50712.c
 +++ b/arch/mips/lantiq/xway/mach-easy50712.c
-@@ -34,12 +34,7 @@
+@@ -34,12 +34,7 @@ static struct mtd_partition easy50712_pa
  	{
  		.name	= "linux",
  		.offset	= 0x20000,
diff --git a/target/linux/lantiq/patches-3.0/030-lmo-queue.patch b/target/linux/lantiq/patches-3.0/030-lmo-queue.patch
index feaa237774..2cb1d08231 100644
--- a/target/linux/lantiq/patches-3.0/030-lmo-queue.patch
+++ b/target/linux/lantiq/patches-3.0/030-lmo-queue.patch
@@ -11,7 +11,7 @@
  
 --- a/arch/mips/lantiq/clk.c
 +++ b/arch/mips/lantiq/clk.c
-@@ -100,6 +100,17 @@
+@@ -100,6 +100,17 @@ void clk_put(struct clk *clk)
  }
  EXPORT_SYMBOL(clk_put);
  
@@ -39,7 +39,7 @@
  
  #include <asm/bootinfo.h>
  #include <asm/irq_cpu.h>
-@@ -105,6 +106,7 @@
+@@ -99,6 +100,7 @@ void ltq_mask_and_ack_irq(struct irq_dat
  	ltq_icu_w32(ltq_icu_r32(ier) & ~(1 << irq_nr), ier);
  	ltq_icu_w32((1 << irq_nr), isr);
  }
@@ -58,7 +58,7 @@
  void __init plat_mem_setup(void)
  {
  	/* assume 16M as default incase uboot fails to pass proper ramsize */
-@@ -40,8 +42,8 @@
+@@ -40,8 +42,8 @@ void __init plat_mem_setup(void)
  		}
  		envp++;
  	}
diff --git a/target/linux/lantiq/patches-3.0/110-falcon_board.patch b/target/linux/lantiq/patches-3.0/110-falcon_board.patch
index aa38f87890..ec52d42d41 100644
--- a/target/linux/lantiq/patches-3.0/110-falcon_board.patch
+++ b/target/linux/lantiq/patches-3.0/110-falcon_board.patch
@@ -72,7 +72,7 @@
 +EXPORT_SYMBOL(ltq_get_fpi_hz);
 --- /dev/null
 +++ b/arch/mips/lantiq/falcon/devices.c
-@@ -0,0 +1,254 @@
+@@ -0,0 +1,258 @@
 +#include <linux/init.h>
 +#include <linux/module.h>
 +#include <linux/types.h>
@@ -109,6 +109,10 @@
 +unsigned char ltq_ethaddr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 +EXPORT_SYMBOL(ltq_ethaddr);
 +
++/* create dummy ebu spinlock for drivers shared with XWAY targets */
++DEFINE_SPINLOCK(ebu_lock);
++EXPORT_SYMBOL_GPL(ebu_lock);
++
 +static int __init
 +falcon_set_ethaddr(char *str)
 +{
@@ -793,7 +797,7 @@
 +EXPORT_SYMBOL(sys_gpe_hw_is_activated);
 --- /dev/null
 +++ b/arch/mips/lantiq/falcon/gpio.c
-@@ -0,0 +1,463 @@
+@@ -0,0 +1,505 @@
 +/*
 + *   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
@@ -842,6 +846,8 @@
 +#define gpio_w32(val, reg)			__raw_writel(val, reg)
 +#define gpio_w32_mask(clear, set, reg)	gpio_w32((gpio_r32(reg) & ~(clear)) | (set), reg)
 +
++#define MAX_PORTS			5
++#define PINS_PER_PORT			32
 +
 +/** register structure for padctrl
 +    (mainly needed for mux control) */
@@ -926,6 +932,8 @@
 +	unsigned int chained_irq;
 +};
 +
++static struct falcon_gpio_port ltq_gpio_port[MAX_PORTS];
++
 +static int gpio_exported = 0;
 +static int __init gpio_export_setup(char *str)
 +{
@@ -946,13 +954,6 @@
 +	return 0;
 +}
 +
-+static int falcon_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value)
-+{
-+	struct falcon_gpio_port *gpio_port = to_falcon_gpio_port(chip);
-+	gpio_w32(1<<offset, &gpio_port->port->dirset);
-+	return 0;
-+}
-+
 +static void falcon_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
 +{
 +	struct falcon_gpio_port *gpio_port = to_falcon_gpio_port(chip);
@@ -962,6 +963,14 @@
 +		gpio_w32(1<<offset, &gpio_port->port->outclr);
 +}
 +
++static int falcon_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value)
++{
++	struct falcon_gpio_port *gpio_port = to_falcon_gpio_port(chip);
++	falcon_gpio_set(chip, offset, value);
++	gpio_w32(1<<offset, &gpio_port->port->dirset);
++	return 0;
++}
++
 +static int falcon_gpio_get(struct gpio_chip *chip, unsigned int offset)
 +{
 +	struct falcon_gpio_port *gpio_port = to_falcon_gpio_port(chip);
@@ -1038,6 +1047,46 @@
 +	gpio_w32(1<<offset, &gpio_port->port->irncr);
 +}
 +
++int ltq_gpio_mux_set(unsigned int pin, unsigned int mux)
++{
++	int port = pin / 100;
++	int offset = pin % 100;
++	struct falcon_gpio_port *gpio_port;
++
++	if (offset >= PINS_PER_PORT || port >= MAX_PORTS)
++		return -EINVAL;
++
++	gpio_port = &ltq_gpio_port[port];
++	gpio_w32(mux, &gpio_port->pad->muxc[offset]);
++
++	return 0;
++}
++EXPORT_SYMBOL(ltq_gpio_mux_set);
++
++int ltq_gpio_request(unsigned int pin, unsigned int alt0,
++		     unsigned int alt1, unsigned int dir, const char *name)
++{
++	int port = pin / 100;
++	int offset = pin % 100;
++	unsigned int mux = (alt0 & 1) + (alt1 & 1) * 2;
++
++	if (offset >= PINS_PER_PORT || port >= MAX_PORTS)
++		return -EINVAL;
++
++	if (gpio_request(pin, name)) {
++		pr_err("failed to setup lantiq gpio: %s\n", name);
++		return -EBUSY;
++	}
++
++	if (dir)
++		gpio_direction_output(pin, 1);
++	else
++		gpio_direction_input(pin);
++
++	return ltq_gpio_mux_set(pin, mux);
++}
++EXPORT_SYMBOL(ltq_gpio_request);
++
 +static struct irq_chip falcon_gpio_irq_chip;
 +static int falcon_gpio_irq_type(struct irq_data *d, unsigned int type)
 +{
@@ -1115,16 +1164,16 @@
 +	struct resource *gpiores, *padres;
 +	int irq;
 +
++	if (pdev->id >= MAX_PORTS)
++		return -ENODEV;
++
 +	gpiores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 +	padres = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 +	irq = platform_get_irq(pdev, 0);
 +	if (!gpiores || !padres)
 +		return -ENODEV;
 +
-+	gpio_port = kzalloc(sizeof(*gpio_port), GFP_KERNEL);
-+	if (gpio_port == NULL)
-+		return -ENOMEM;
-+
++	gpio_port = &ltq_gpio_port[pdev->id];
 +	gpio_port->gpio_chip.label = "falcon-gpio";
 +	gpio_port->gpio_chip.direction_input = falcon_gpio_direction_input;
 +	gpio_port->gpio_chip.direction_output = falcon_gpio_direction_output;
@@ -1200,7 +1249,6 @@
 +		iounmap(gpio_port->port);
 +	if (gpio_port->pad)
 +		iounmap(gpio_port->pad);
-+	kfree(gpio_port);
 +	return ret;
 +}
 +
@@ -1218,8 +1266,6 @@
 +		iounmap(gpio_port->port);
 +	if (gpio_port->pad)
 +		iounmap(gpio_port->pad);
-+	if (ret == 0)
-+		kfree(gpio_port);
 +
 +	return ret;
 +}
@@ -1278,7 +1324,7 @@
 +#endif
 --- /dev/null
 +++ b/arch/mips/lantiq/falcon/reset.c
-@@ -0,0 +1,80 @@
+@@ -0,0 +1,95 @@
 +/*
 + * 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
@@ -1305,6 +1351,22 @@
 +#define WDT_PW2			0x00DC0000
 +#define WDT_REG_BASE		(KSEG1 | 0x1F8803F0)
 +
++struct gpon_reg_boot {
++	/* bootrom related virtual registers */
++	unsigned int rvec;
++	unsigned int nvec;
++	unsigned int evec;
++	unsigned int cp0_status;
++	unsigned int cp0_epc;
++	unsigned int cp0_eepc;
++	unsigned int size;
++	unsigned int cfg_stat;
++	/* additional virtual registers */
++	unsigned int magic0; /* magic for valid reboot */
++	unsigned int magic1; /*  -"-  */
++	unsigned int bcount; /* reboot counter, used by u-boot */
++} * const pBOOT = (struct gpon_reg_boot *)GPON_SBS0RAM_BASE;
++
 +/* This function is used by the watchdog driver */
 +int ltq_reset_cause(void)
 +{
@@ -1317,11 +1379,11 @@
 +{
 +	printk(KERN_NOTICE "System restart\n");
 +	local_irq_disable();
-+	ltq_w32(0, (void*)0xBF200000); /* reset Bootreg RVEC */
-+#if 0
-+	ltq_w32(RBT_CPU_TRIG, &pSYS1->rbt);
-+#else
-+	/* use workaround via watchdog timer */
++	/* write magic to signal a valid restart */
++	ltq_w32(0x4C545100, &pBOOT->magic0); /* 'LTQ\0' */
++	ltq_w32(0x0051544C, &pBOOT->magic1); /* '\0QTL' */
++	ltq_w32(0, &pBOOT->rvec); /* reset Bootreg RVEC */
++	/* reset via watchdog timer, to ensure reset of all hardware components */
 +	ltq_w32(WDT_PW1, (void*)WDT_REG_BASE);
 +	ltq_w32(WDT_PW2 |
 +		(0x3 << 26) | /* PWL */
@@ -1329,7 +1391,6 @@
 +		(0x1 << 31) | /* enable */
 +		(1), /* reload */
 +		(void*)WDT_REG_BASE);
-+#endif
 +	for(;;);
 +}
 +
@@ -1778,7 +1839,7 @@
 +#endif
 --- a/arch/mips/lantiq/Kconfig
 +++ b/arch/mips/lantiq/Kconfig
-@@ -16,8 +16,12 @@
+@@ -16,8 +16,12 @@ config SOC_XWAY
  	bool "XWAY"
  	select SOC_TYPE_XWAY
  	select HW_HAS_PCI
@@ -1793,21 +1854,21 @@
  endif
 --- a/arch/mips/lantiq/Makefile
 +++ b/arch/mips/lantiq/Makefile
-@@ -9,3 +9,4 @@
+@@ -9,3 +9,4 @@ obj-y := irq.o setup.o clk.o prom.o devi
  obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
  
  obj-$(CONFIG_SOC_TYPE_XWAY) += xway/
 +obj-$(CONFIG_SOC_FALCON) += falcon/
 --- a/arch/mips/lantiq/Platform
 +++ b/arch/mips/lantiq/Platform
-@@ -6,3 +6,4 @@
+@@ -6,3 +6,4 @@ platform-$(CONFIG_LANTIQ)	+= lantiq/
  cflags-$(CONFIG_LANTIQ)		+= -I$(srctree)/arch/mips/include/asm/mach-lantiq
  load-$(CONFIG_LANTIQ)		= 0xffffffff80002000
  cflags-$(CONFIG_SOC_TYPE_XWAY)	+= -I$(srctree)/arch/mips/include/asm/mach-lantiq/xway
 +cflags-$(CONFIG_SOC_FALCON)	+= -I$(srctree)/arch/mips/include/asm/mach-lantiq/falcon
 --- a/arch/mips/lantiq/machtypes.h
 +++ b/arch/mips/lantiq/machtypes.h
-@@ -15,6 +15,12 @@
+@@ -15,6 +15,12 @@ enum lantiq_mach_type {
  	LTQ_MACH_GENERIC = 0,
  	LTQ_MACH_EASY50712,	/* Danube evaluation board */
  	LTQ_MACH_EASY50601,	/* Amazon SE evaluation board */
@@ -2035,3 +2096,20 @@
 +
 +module_init(easy98000_addon_init);
 +module_exit(easy98000_addon_exit);
+--- a/arch/mips/lantiq/prom.c
++++ b/arch/mips/lantiq/prom.c
+@@ -45,10 +45,12 @@ static void __init prom_init_cmdline(voi
+ 	char **argv = (char **) KSEG1ADDR(fw_arg1);
+ 	int i;
+ 
++	arcs_cmdline[0] = '\0';
++
+ 	for (i = 0; i < argc; i++) {
+-		char *p = (char *)  KSEG1ADDR(argv[i]);
++		char *p = (char *) KSEG1ADDR(argv[i]);
+ 
+-		if (p && *p) {
++		if (CPHYSADDR(p) && *p) {
+ 			strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
+ 			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
+ 		}
diff --git a/target/linux/lantiq/patches-3.0/120-falcon-i2c.patch b/target/linux/lantiq/patches-3.0/120-falcon-i2c.patch
index c5d39c8c21..2def0a802a 100644
--- a/target/linux/lantiq/patches-3.0/120-falcon-i2c.patch
+++ b/target/linux/lantiq/patches-3.0/120-falcon-i2c.patch
@@ -9,7 +9,7 @@
  ccflags-$(CONFIG_I2C_DEBUG_BUS) := -DDEBUG
 --- a/drivers/i2c/busses/Kconfig
 +++ b/drivers/i2c/busses/Kconfig
-@@ -282,6 +282,10 @@ config I2C_POWERMAC
+@@ -284,6 +284,10 @@ config I2C_POWERMAC
  
  comment "I2C system bus drivers (mostly embedded / system-on-chip)"
  
@@ -22,41 +22,49 @@
  	depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
 --- /dev/null
 +++ b/drivers/i2c/busses/i2c-falcon.c
-@@ -0,0 +1,803 @@
+@@ -0,0 +1,815 @@
 +/*
-+ *   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.
++ * Lantiq FALC(tm) ON - I2C bus adapter
 + *
-+ *   This program is distributed in the hope that it will be useful,
-+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ *   GNU General Public License for more details.
++ * Parts based on i2c-designware.c and other i2c drivers from Linux 2.6.33
 + *
-+ *   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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
++ * 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 program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * 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.
 + */
 +
 +/* #define DEBUG */
 +
++#include <linux/kernel.h>
 +#include <linux/module.h>
-+#include <linux/ioport.h>
-+#include <linux/init.h>
-+#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/slab.h> /* for kzalloc, kfree */
 +#include <linux/i2c.h>
-+#include <linux/interrupt.h>
-+#include <linux/spinlock.h>
-+#include <linux/io.h>
 +#include <linux/clk.h>
++#include <linux/errno.h>
++#include <linux/sched.h>
 +#include <linux/err.h>
-+#include <linux/slab.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++#include <linux/gpio.h>
++
++#include <falcon/lantiq_soc.h>
 +
 +/* CURRENT ISSUES:
 + * - no high speed support
-+ * - rx issue with "address mode" & "tx end" interrupts
-+ * - ten bit mode is not tested
++ * - supports only master mode
++ * - ten bit mode is not tested (no slave devices)
 + */
 +
 +/* mapping for access macros */
@@ -69,32 +77,34 @@
 +#define i2c	(priv->membase)
 +#include <falcon/i2c_reg.h>
 +
-+/* enable hacks to overcome current issue */
-+#define FALCON_FIX_ME
-+
-+#define FALCON_I2C_ADDR			0x00
-+#define FALCON_I2C_READY_TIMEOUT	1000
-+#define FALCON_I2C_WAIT_TIMEOUT		10
-+
 +#define DRV_NAME "i2c-falcon"
++#define DRV_VERSION "1.01"
 +
-+#if defined(DEBUG)
-+#define static /* no static functions for better debugging */
++#define FALCON_I2C_BUSY_TIMEOUT		20 /* ms */
++
++#ifdef DEBUG
++#define FALCON_I2C_XFER_TIMEOUT		25*HZ
++#else
++#define FALCON_I2C_XFER_TIMEOUT		HZ
++#endif
++#if defined(DEBUG) && 0
++#define PRINTK(arg...) printk(arg)
++#else
++#define PRINTK(arg...) do {} while (0)
 +#endif
 +
++#define FALCON_I2C_IMSC_DEFAULT_MASK	(I2C_IMSC_I2C_P_INT_EN | \
++					 I2C_IMSC_I2C_ERR_INT_EN)
++
 +#define FALCON_I2C_ARB_LOST	(1 << 0)
 +#define FALCON_I2C_NACK		(1 << 1)
 +#define FALCON_I2C_RX_UFL	(1 << 2)
 +#define FALCON_I2C_RX_OFL	(1 << 3)
 +#define FALCON_I2C_TX_UFL	(1 << 4)
 +#define FALCON_I2C_TX_OFL	(1 << 5)
-+#define FALCON_I2C_BURST_REQ	(1 << 6)
-+#define FALCON_I2C_RX		(1 << 7)
-+#define FALCON_I2C_TX_END	(1 << 8)
-+#define FALCON_I2C_ADDR_MATCH	(1 << 9) /* doesn't trigger */
 +
 +struct falcon_i2c {
-+	spinlock_t lock;
++	struct mutex mutex;
 +
 +	enum {
 +		FALCON_I2C_MODE_100	= 1,
@@ -102,504 +112,482 @@
 +		FALCON_I2C_MODE_3400	= 3
 +	} mode;				/* current speed mode */
 +
-+	int ten_bit;			/* current address mode */
-+	unsigned long status;		/* bus events holder */
 +	struct clk *clk;		/* clock input for i2c hardware block */
 +	struct gpon_reg_i2c __iomem *membase;	/* base of mapped registers */
 +	int irq_lb, irq_b, irq_err, irq_p;	/* last burst, burst, error,
 +						   protocol IRQs */
-+	struct completion done;
++
 +	struct i2c_adapter adap;
 +	struct device *dev;
-+};
 +
-+#define FALCON_I2C_ERROR_MASK		(FALCON_I2C_NACK \
-+					| FALCON_I2C_ARB_LOST \
-+					| FALCON_I2C_RX_OFL \
-+					| FALCON_I2C_RX_UFL \
-+					| FALCON_I2C_TX_OFL \
-+					| FALCON_I2C_TX_UFL)
++	struct completion	cmd_complete;
++
++	/* message transfer data */
++	/* current message */
++	struct i2c_msg		*current_msg;
++	/* number of messages to handle */
++	int			msgs_num;
++	/* current buffer */
++	u8			*msg_buf;
++	/* remaining length of current buffer */
++	u32			msg_buf_len;
++	/* error status of the current transfer */
++	int			msg_err;
++
++	/* master status codes */
++	enum {
++		STATUS_IDLE,
++		STATUS_ADDR,	/* address phase */
++		STATUS_WRITE,
++		STATUS_READ,
++		STATUS_READ_END,
++		STATUS_STOP
++	} status;
++};
 +
-+#define FALCON_I2C_ERROR(priv)		(priv->status & FALCON_I2C_ERROR_MASK)
-+#define FALCON_I2C_ERROR_CLEAR(priv)	do { \
-+						priv->status &= \
-+						~FALCON_I2C_ERROR_MASK; \
-+					} while (0)
++static irqreturn_t falcon_i2c_isr(int irq, void *dev_id);
 +
-+static void falcon_addr_configure(struct falcon_i2c *priv, int ten_bit)
++static inline void enable_burst_irq(struct falcon_i2c *priv)
 +{
-+	u32 ten_bit_mask = ten_bit ? I2C_ADDR_CFG_TBAM_10bit : 0;
-+
-+	/* configure address */
-+	i2c_w32(I2C_ADDR_CFG_SOPE_EN /* generate stop when no more data in the
-+					fifo */
-+		| I2C_ADDR_CFG_SONA_EN /* generate stop when NA received */
-+		| I2C_ADDR_CFG_MnS_EN /* we are master device */
-+		| ten_bit_mask
-+		| FALCON_I2C_ADDR, /* our address */
-+		addr_cfg);
++	i2c_w32_mask(0, I2C_IMSC_LBREQ_INT_EN | I2C_IMSC_BREQ_INT_EN, imsc);
 +}
-+
-+static irqreturn_t falcon_i2c_isr(int irq, void *dev_id)
++static inline void disable_burst_irq(struct falcon_i2c *priv)
 +{
-+	u32 i_raw, i_pro, i_err;
-+	struct falcon_i2c *priv = dev_id;
-+	unsigned long flags;
-+	unsigned int old_status;
-+
-+	spin_lock_irqsave(&priv->lock, flags);
-+
-+	old_status = (unsigned int)priv->status;
-+
-+	i_raw = i2c_r32(mis);
-+
-+	/* protocol interrupt */
-+	if (i_raw & I2C_RIS_I2C_P_INT_INTOCC) {
-+		i_pro = i2c_r32(p_irqss);
++	i2c_w32_mask(I2C_IMSC_LBREQ_INT_EN | I2C_IMSC_BREQ_INT_EN, 0, imsc);
++}
 +
-+		/* tx -> rx switch */
-+		if (i_pro & I2C_P_IRQSS_RX)
-+			priv->status |= FALCON_I2C_RX;
++static void prepare_msg_send_addr(struct falcon_i2c *priv)
++{
++	struct i2c_msg *msg = priv->current_msg;
++	int rd = !!(msg->flags & I2C_M_RD);	/* extends to 0 or 1 */
++	u16 addr = msg->addr;
++
++	/* new i2c_msg */
++	priv->msg_buf = msg->buf;
++	priv->msg_buf_len = msg->len;
++	if (rd)
++		priv->status = STATUS_READ;
++	else
++		priv->status = STATUS_WRITE;
 +
-+		/* tx end */
-+		if (i_pro & I2C_P_IRQSS_TX_END)
-+			priv->status |= FALCON_I2C_TX_END;
++	/* send slave address */
++	if (msg->flags & I2C_M_TEN) {
++		i2c_w32(0xf0 | ((addr & 0x300) >> 7) | rd, txd);
++		i2c_w32(addr & 0xff, txd);
++	} else
++		i2c_w32((addr & 0x7f) << 1 | rd, txd);
++}
 +
-+		/* not acknowledge */
-+		if (i_pro & I2C_P_IRQSS_NACK)
-+			priv->status |= FALCON_I2C_NACK;
++static void set_tx_len(struct falcon_i2c *priv)
++{
++	struct i2c_msg *msg = priv->current_msg;
++	int len = (msg->flags & I2C_M_TEN) ? 2 : 1;
 +
-+		/* arbitration lost */
-+		if (i_pro & I2C_P_IRQSS_AL)
-+			priv->status |= FALCON_I2C_ARB_LOST;
++	PRINTK("set_tx_len %cX\n", (msg->flags & I2C_M_RD)?'R':'T');
 +
-+		/* address match */
-+		if (i_pro & I2C_P_IRQSS_AM)
-+			priv->status |= FALCON_I2C_ADDR_MATCH;
++	priv->status = STATUS_ADDR;
 +
-+		i2c_w32(i_pro, p_irqsc);
++	if (!(msg->flags & I2C_M_RD)) {
++		len += msg->len;
++	} else {
++		/* set maximum received packet size (before rx int!) */
++		i2c_w32(msg->len, mrps_ctrl);
 +	}
++	i2c_w32(len, tps_ctrl);
++	enable_burst_irq(priv);
++}
 +
-+	/* error interrupt */
-+	if (i_raw & I2C_RIS_I2C_ERR_INT_INTOCC) {
-+		i_err = i2c_r32(err_irqss);
-+
-+		/* tx fifo overflow */
-+		if (i_err & I2C_ERR_IRQSS_TXF_OFL)
-+			priv->status |= FALCON_I2C_TX_OFL;
-+
-+		/* tx fifo underflow */
-+		if (i_err & I2C_ERR_IRQSS_TXF_UFL)
-+			priv->status |= FALCON_I2C_TX_UFL;
-+
-+		/* rx fifo overflow */
-+		if (i_err & I2C_ERR_IRQSS_RXF_OFL)
-+			priv->status |= FALCON_I2C_RX_OFL;
-+
-+		/* rx fifo underflow */
-+		if (i_err & I2C_ERR_IRQSS_RXF_UFL)
-+			priv->status |= FALCON_I2C_RX_UFL;
++static int falcon_i2c_hw_init(struct i2c_adapter *adap)
++{
++	struct falcon_i2c *priv = i2c_get_adapdata(adap);
 +
-+		i2c_w32(i_err, err_irqsc);
-+	}
++	/* disable bus */
++	i2c_w32_mask(I2C_RUN_CTRL_RUN_EN, 0, run_ctrl);
 +
-+	/* burst request */
-+	if (i_raw & I2C_RIS_BREQ_INT_INTOCC) {
-+		i2c_w32_mask(I2C_IMSC_BREQ_INT_EN, 0, imsc);
-+		i2c_w32_mask(0, I2C_ICR_BREQ_INT_CLR, icr);
++#ifndef DEBUG
++	/* set normal operation clock divider */
++	i2c_w32(1 << I2C_CLC_RMC_OFFSET, clc);
++#else
++	/* for debugging a higher divider value! */
++	i2c_w32(0xF0 << I2C_CLC_RMC_OFFSET, clc);
++#endif
 +
-+		priv->status |= FALCON_I2C_BURST_REQ;
++	/* set frequency */
++	if (priv->mode == FALCON_I2C_MODE_100) {
++		dev_dbg(priv->dev, "set standard mode (100 kHz)\n");
++		i2c_w32(0, fdiv_high_cfg);
++		i2c_w32((1 << I2C_FDIV_CFG_INC_OFFSET) |
++			(499 << I2C_FDIV_CFG_DEC_OFFSET),
++			fdiv_cfg);
++	} else if (priv->mode == FALCON_I2C_MODE_400) {
++		dev_dbg(priv->dev, "set fast mode (400 kHz)\n");
++		i2c_w32(0, fdiv_high_cfg);
++		i2c_w32((1 << I2C_FDIV_CFG_INC_OFFSET) |
++			(124 << I2C_FDIV_CFG_DEC_OFFSET),
++			fdiv_cfg);
++	} else if (priv->mode == FALCON_I2C_MODE_3400) {
++		dev_dbg(priv->dev, "set high mode (3.4 MHz)\n");
++		i2c_w32(0, fdiv_cfg);
++		/* TODO recalculate value for 100MHz input */
++		i2c_w32((41 << I2C_FDIV_HIGH_CFG_INC_OFFSET) |
++			(152 << I2C_FDIV_HIGH_CFG_DEC_OFFSET),
++			fdiv_high_cfg);
++	} else {
++		dev_warn(priv->dev, "unknown mode\n");
++		return -ENODEV;
 +	}
 +
-+	/* last burst request */
-+	if (i_raw & I2C_RIS_LBREQ_INT_INTOCC) {
-+		i2c_w32_mask(I2C_IMSC_LBREQ_INT_EN, 0, imsc);
-+		i2c_w32_mask(0, I2C_ICR_LBREQ_INT_CLR, icr);
-+
-+		priv->status |= FALCON_I2C_BURST_REQ;
-+	}
++	/* configure fifo */
++	i2c_w32(I2C_FIFO_CFG_TXFC | /* tx fifo as flow controller */
++		I2C_FIFO_CFG_RXFC | /* rx fifo as flow controller */
++		I2C_FIFO_CFG_TXFA_TXFA2 | /* tx fifo 4-byte aligned */
++		I2C_FIFO_CFG_RXFA_RXFA2 | /* rx fifo 4-byte aligned */
++		I2C_FIFO_CFG_TXBS_TXBS0 | /* tx fifo burst size is 1 word */
++		I2C_FIFO_CFG_RXBS_RXBS0,  /* rx fifo burst size is 1 word */
++		fifo_cfg);
 +
-+	if (old_status != (unsigned int)priv->status)
-+		complete(&priv->done);
++	/* configure address */
++	i2c_w32(I2C_ADDR_CFG_SOPE_EN |	/* generate stop when no more data in the
++					   fifo */
++		I2C_ADDR_CFG_SONA_EN |	/* generate stop when NA received */
++		I2C_ADDR_CFG_MnS_EN |	/* we are master device */
++		0,			/* our slave address (not used!) */
++		addr_cfg);
 +
-+	spin_unlock_irqrestore(&priv->lock, flags);
++	/* enable bus */
++	i2c_w32_mask(0, I2C_RUN_CTRL_RUN_EN, run_ctrl);
 +
-+	return IRQ_HANDLED;
++	return 0;
 +}
 +
-+static int falcon_i2c_ready(struct falcon_i2c *priv)
++static int falcon_i2c_wait_bus_not_busy(struct falcon_i2c *priv)
 +{
-+	int timeout;
-+	u32 bus_stat;
-+	unsigned long flags;
-+	int ret;
-+
-+	for (timeout = 0; timeout < FALCON_I2C_READY_TIMEOUT; timeout++) {
-+		bus_stat = i2c_r32(bus_stat);
-+
-+		if (bus_stat & I2C_BUS_STAT_BS_SC) {
-+			cpu_relax();
-+		} else {
-+			spin_lock_irqsave(&priv->lock, flags);
++	int timeout = FALCON_I2C_BUSY_TIMEOUT;
 +
-+			if (FALCON_I2C_ERROR(priv)) {
-+				ret = priv->status;
-+
-+				dev_dbg(priv->dev, "bus ready wait error 0x%08lx\n", priv->status);
-+
-+				FALCON_I2C_ERROR_CLEAR(priv);
-+			} else {
-+				ret = 0;
-+			}
-+
-+			spin_unlock_irqrestore(&priv->lock, flags);
-+
-+			return ret;
++	while ((i2c_r32(bus_stat) & I2C_BUS_STAT_BS_MASK)
++				 != I2C_BUS_STAT_BS_FREE) {
++		if (timeout <= 0) {
++			dev_warn(priv->dev, "timeout waiting for bus ready\n");
++			return -ETIMEDOUT;
 +		}
++		timeout--;
++		mdelay(1);
 +	}
 +
-+	dev_dbg(priv->dev, "bus ready wait timeout\n");
-+
-+	return -ETIME;
++	return 0;
 +}
 +
-+static int falcon_i2c_wait(struct falcon_i2c *priv, unsigned long status)
++static void falcon_i2c_tx(struct falcon_i2c *priv, int last)
 +{
-+	int ret = 0;
-+	unsigned long flags;
-+	unsigned int timeout;
-+
-+	spin_lock_irqsave(&priv->lock, flags);
-+
-+	priv->status &= FALCON_I2C_BURST_REQ;
-+
-+	/* check if the event already occurred */
-+	if ((priv->status & status) == status) {
-+		priv->status &= ~status;
-+		spin_unlock_irqrestore(&priv->lock, flags);
-+
-+		return 0;
++	if (priv->msg_buf_len && priv->msg_buf) {
++		i2c_w32(*priv->msg_buf, txd);
++
++		if (--priv->msg_buf_len)
++			priv->msg_buf++;
++		else
++			priv->msg_buf = NULL;
++	} else
++		last = 1;
++
++	if (last) {
++		disable_burst_irq(priv);
 +	}
++}
 +
-+	spin_unlock_irqrestore(&priv->lock, flags);
-+
-+	/* unmask burst interrupts */
-+	i2c_w32_mask(0, I2C_IMSC_LBREQ_INT_EN | I2C_IMSC_BREQ_INT_EN, imsc);
-+
-+	for (timeout = 0; timeout < FALCON_I2C_WAIT_TIMEOUT; timeout++) {
-+		/* wait for the data request */
-+		wait_for_completion_timeout(&priv->done, HZ / 10);
-+
-+		/* handle errors */
-+		spin_lock_irqsave(&priv->lock, flags);
-+
-+		if (FALCON_I2C_ERROR(priv)) {
-+			dev_dbg(priv->dev, "wait error 0x%08lx (waiting for 0x%08lx)\n",
-+			    priv->status,
-+			    status);
-+
-+			if (priv->status & FALCON_I2C_NACK)
-+				ret = -ENXIO;
-+			else
-+				ret = -EREMOTEIO;
-+
-+			FALCON_I2C_ERROR_CLEAR(priv);
-+		} else {
-+			if ((priv->status & status) == status) {
-+				priv->status &= ~status;
-+				spin_unlock_irqrestore(&priv->lock, flags);
-+
-+				return 0;
++static void falcon_i2c_rx(struct falcon_i2c *priv, int last)
++{
++	u32 fifo_stat,timeout;
++	if (priv->msg_buf_len && priv->msg_buf) {
++		timeout = 5000000;
++		do {
++			fifo_stat = i2c_r32(ffs_stat);
++		} while (!fifo_stat && --timeout);
++		if (!timeout) {
++			last = 1;
++			PRINTK("\nrx timeout\n");
++			goto err;
++		}
++		while (fifo_stat) {
++			*priv->msg_buf = i2c_r32(rxd);
++			if (--priv->msg_buf_len)
++				priv->msg_buf++;
++			else {
++				priv->msg_buf = NULL;
++				last = 1;
++				break;
 +			}
++			#if 0
++			fifo_stat = i2c_r32(ffs_stat);
++			#else
++			/* do not read more than burst size, otherwise no "last
++			burst" is generated and the transaction is blocked! */
++			fifo_stat = 0;
++			#endif
++		}
++	} else {
++		last = 1;
++	}
++err:
++	if (last) {
++		disable_burst_irq(priv);
++
++		if (priv->status == STATUS_READ_END) {
++			/* do the STATUS_STOP and complete() here, as sometimes
++			   the tx_end is already seen before this is finished */
++			priv->status = STATUS_STOP;
++			complete(&priv->cmd_complete);
++		} else {
++			i2c_w32(I2C_ENDD_CTRL_SETEND, endd_ctrl);
++			priv->status = STATUS_READ_END;
 +		}
-+
-+		spin_unlock_irqrestore(&priv->lock, flags);
-+
-+		if (ret)
-+			return ret;
 +	}
-+
-+	dev_dbg(priv->dev, "wait timeout error 0x%08lx (waiting for 0x%08lx)\n",
-+	    priv->status,
-+	    status);
-+
-+	return -ETIME;
 +}
 +
-+static int falcon_i2c_tx(struct falcon_i2c *priv, int ten_bit, u16 addr,
-+			 u8 *buf, int len)
++static void falcon_i2c_xfer_init(struct falcon_i2c *priv)
 +{
-+	int i;
-+	int ret;
-+
-+	dev_dbg(priv->dev, "%s\n", __func__);
-+
-+	/* tell fifo the number of bytes we are going to send */
-+	i2c_w32(len + (ten_bit ? 2 : 1), tps_ctrl);
-+
-+	/* wait for the data request */
-+	ret = falcon_i2c_wait(priv, FALCON_I2C_BURST_REQ);
-+	if (ret)
-+		return ret;
-+
-+	/* send slave address */
-+	if (ten_bit) {
-+		i2c_w32(0x78 | ((addr >> 7) & 0x7), txd);
-+		i2c_w32(0x78 | ((addr & 0x7f) << 1) | 0, txd);
-+	} else {
-+		i2c_w32((addr << 1) | 0, txd);
-+	}
++	/* enable interrupts */
++	i2c_w32(FALCON_I2C_IMSC_DEFAULT_MASK, imsc);
 +
-+	/* fill fifo */
-+	for (i = 0; i < len; i++) {
-+		ret = falcon_i2c_wait(priv, FALCON_I2C_BURST_REQ);
-+		if (ret)
-+			return ret;
++	/* trigger transfer of first msg */
++	set_tx_len(priv);
++}
 +
-+		i2c_w32(buf[i], txd);
++static void dump_msgs(struct i2c_msg msgs[], int num, int rx)
++{
++#if defined(DEBUG)
++	int i, j;
++	printk("Messages %d %s\n", num, rx ? "out" : "in");
++	for (i = 0; i < num; i++) {
++		printk("%2d %cX Msg(%d) addr=0x%X: ", i,
++			(msgs[i].flags & I2C_M_RD)?'R':'T',
++			msgs[i].len, msgs[i].addr);
++		if (!(msgs[i].flags & I2C_M_RD) || rx) {
++			for (j = 0; j < msgs[i].len; j++)
++				printk("%02X ", msgs[i].buf[j]);
++		}
++		printk("\n");
 +	}
++#endif
++}
 +
-+	return falcon_i2c_wait(priv, FALCON_I2C_TX_END);
++static void falcon_i2c_release_bus(struct falcon_i2c *priv)
++{
++	if ((i2c_r32(bus_stat) & I2C_BUS_STAT_BS_MASK) == I2C_BUS_STAT_BS_BM)
++		i2c_w32(I2C_ENDD_CTRL_SETEND, endd_ctrl);
 +}
 +
-+static int falcon_i2c_rx(struct falcon_i2c *priv, int ten_bit, u16 addr,
-+			 u8 *buf, int len)
++static int falcon_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
++			   int num)
 +{
-+	int i;
++	struct falcon_i2c *priv = i2c_get_adapdata(adap);
 +	int ret;
 +
-+	dev_dbg(priv->dev, "%s\n", __func__);
++	dev_dbg(priv->dev, "xfer %u messages\n", num);
++	dump_msgs(msgs, num, 0);
 +
-+	/* we need to transmit address only */
-+	i2c_w32(ten_bit ? 2 : 1, tps_ctrl);
++	mutex_lock(&priv->mutex);
 +
-+	/* set maximum received packet size */
-+	i2c_w32(len, mrps_ctrl);
++	INIT_COMPLETION(priv->cmd_complete);
++	priv->current_msg = msgs;
++	priv->msgs_num = num;
++	priv->msg_err = 0;
++	priv->status = STATUS_IDLE;
 +
-+	/* wait for the data request */
-+	ret = falcon_i2c_wait(priv, FALCON_I2C_BURST_REQ);
++	/* wait for the bus to become ready */
++	ret = falcon_i2c_wait_bus_not_busy(priv);
 +	if (ret)
-+		return ret;
-+
-+	/* write down the address */
-+	if (ten_bit) {
-+		i2c_w32(0x78 | ((addr >> 7) & 0x7), txd);
-+		i2c_w32(0x78 | ((addr & 0x7f) << 1) | 1, txd);
-+	} else {
-+		i2c_w32((addr << 1) | 1, txd);
++		goto done;
++
++	while (priv->msgs_num) {
++		/* start the transfers */
++		falcon_i2c_xfer_init(priv);
++
++		/* wait for transfers to complete */
++		ret = wait_for_completion_interruptible_timeout(
++			&priv->cmd_complete, FALCON_I2C_XFER_TIMEOUT);
++		if (ret == 0) {
++			dev_err(priv->dev, "controller timed out\n");
++			falcon_i2c_hw_init(adap);
++			ret = -ETIMEDOUT;
++			goto done;
++		} else if (ret < 0)
++			goto done;
++
++		if (priv->msg_err) {
++			if (priv->msg_err & FALCON_I2C_NACK)
++				ret = -ENXIO;
++			else
++				ret = -EREMOTEIO;
++			goto done;
++		}
++		if (--priv->msgs_num) {
++			priv->current_msg++;
++		}
 +	}
++	/* no error? */
++	ret = num;
 +
-+	/* wait for the read request */
-+	ret = falcon_i2c_wait(priv, FALCON_I2C_TX_END
-+#ifndef FALCON_FIX_ME
-+			      | FALCON_I2C_ADDR_MATCH
-+#endif
-+			      | FALCON_I2C_RX);
++done:
++	falcon_i2c_release_bus(priv);
 +
-+	if (ret)
-+		return ret;
++	mutex_unlock(&priv->mutex);
 +
-+	/* read bytes */
-+	for (i = 0; i < len; i++) {
-+#ifdef FALCON_FIX_ME
-+		while (i2c_r32(rps_stat) == 0)
-+			cpu_relax();
-+#else
-+		ret = falcon_i2c_wait(priv, FALCON_I2C_BURST_REQ);
-+
-+		if (ret)
-+			return ret;
-+#endif
-+
-+		buf[i] = i2c_r32(rxd);
-+	}
++	if (ret>=0)
++		dump_msgs(msgs, num, 1);
 +
-+#ifndef FALCON_FIX_ME
-+	/* wait for transmission end */
-+	return falcon_i2c_wait(priv, FALCON_I2C_TX_END);
-+#else
-+	return 0;
-+#endif
++	PRINTK("XFER ret %d\n", ret);
++	return ret;
 +}
 +
-+static int falcon_i2c_xfer_msg(struct falcon_i2c *priv, struct i2c_msg *msg)
++static irqreturn_t falcon_i2c_isr_burst(int irq, void *dev_id)
 +{
-+	int ret;
-+	int ten_bit;
-+	unsigned long flags;
-+
-+	dev_dbg(priv->dev, "%s %u byte(s) %s 0x%02x\n",
-+		(msg->flags & I2C_M_RD) ? "read" : "write", msg->len,
-+		(msg->flags & I2C_M_RD) ? "from" : "to", msg->addr);
++	struct falcon_i2c *priv = dev_id;
++	struct i2c_msg *msg = priv->current_msg;
++	int last = (irq == priv->irq_lb);
 +
-+	if (msg->flags & I2C_M_TEN)
-+		ten_bit = 1;
++	if (last)
++		PRINTK("LB ");
 +	else
-+		ten_bit = 0;
++		PRINTK("B ");
++
++	if (msg->flags & I2C_M_RD) {
++		switch (priv->status) {
++		case STATUS_ADDR:
++			PRINTK("X");
++			prepare_msg_send_addr(priv);
++			disable_burst_irq(priv);
++			break;
++		case STATUS_READ:
++		case STATUS_READ_END:
++			PRINTK("R");
++			falcon_i2c_rx(priv, last);
++			break;
++		default:
++			disable_burst_irq(priv);
++			printk("Status R %d\n", priv->status);
++			break;
++		}
++	} else {
++		switch (priv->status) {
++		case STATUS_ADDR:
++			PRINTK("x");
++			prepare_msg_send_addr(priv);
++			break;
++		case STATUS_WRITE:
++			PRINTK("w");
++			falcon_i2c_tx(priv, last);
++			break;
++		default:
++			disable_burst_irq(priv);
++			printk("Status W %d\n", priv->status);
++			break;
++		}
++	}
 +
-+	/* reconfigure bus if need to send message in different address mode */
-+	spin_lock_irqsave(&priv->lock, flags);
-+	if (ten_bit != priv->ten_bit) {
++	i2c_w32(I2C_ICR_BREQ_INT_CLR | I2C_ICR_LBREQ_INT_CLR, icr);
++	return IRQ_HANDLED;
++}
 +
-+		/* disable bus */
-+		i2c_w32_mask(I2C_RUN_CTRL_RUN_EN, 0, run_ctrl);
++static void falcon_i2c_isr_prot(struct falcon_i2c *priv)
++{
++	u32 i_pro = i2c_r32(p_irqss);
 +
-+		/* reconfigure address */
-+		falcon_addr_configure(priv, ten_bit);
++	PRINTK("i2c-p");
 +
-+		/* enable bus */
-+		i2c_w32_mask(0, I2C_RUN_CTRL_RUN_EN, run_ctrl);
++	/* not acknowledge */
++	if (i_pro & I2C_P_IRQSS_NACK) {
++		priv->msg_err |= FALCON_I2C_NACK;
++		PRINTK(" nack");
++	}
 +
-+		priv->ten_bit = ten_bit;
++	/* arbitration lost */
++	if (i_pro & I2C_P_IRQSS_AL) {
++		priv->msg_err |= FALCON_I2C_ARB_LOST;
++		PRINTK(" arb-lost");
 +	}
-+	spin_unlock_irqrestore(&priv->lock, flags);
++	/* tx -> rx switch */
++	if (i_pro & I2C_P_IRQSS_RX)
++		PRINTK(" rx");
 +
-+	/* read/write actual message */
-+	if (msg->flags & I2C_M_RD)
-+		ret = falcon_i2c_rx(priv, ten_bit, msg->addr, msg->buf,
-+				    msg->len);
-+	else
-+		ret = falcon_i2c_tx(priv, ten_bit, msg->addr, msg->buf,
-+				    msg->len);
++	/* tx end */
++	if (i_pro & I2C_P_IRQSS_TX_END)
++		PRINTK(" txend");
++	PRINTK("\n");
 +
-+	if (ret)
-+		return ret;
++	if (!priv->msg_err) {
++		/* tx -> rx switch */
++		if (i_pro & I2C_P_IRQSS_RX) {
++			priv->status = STATUS_READ;
++			enable_burst_irq(priv);
++		}
++		if (i_pro & I2C_P_IRQSS_TX_END) {
++			if (priv->status == STATUS_READ)
++				priv->status = STATUS_READ_END;
++			else {
++				disable_burst_irq(priv);
++				priv->status = STATUS_STOP;
++			}
++		}
++	}
 +
-+	return 0;
++	i2c_w32(i_pro, p_irqsc);
 +}
 +
-+static int falcon_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msg,
-+			   int num)
++static irqreturn_t falcon_i2c_isr(int irq, void *dev_id)
 +{
-+	int i;
-+	int ret;
-+	unsigned long flags;
-+	struct falcon_i2c *priv = i2c_get_adapdata(adap);
++	u32 i_raw, i_err=0;
++	struct falcon_i2c *priv = dev_id;
 +
-+	dev_dbg(priv->dev, "xfer %u messages\n", num);
++	i_raw = i2c_r32(mis);
++	PRINTK("i_raw 0x%08X\n", i_raw);
 +
-+	/* transfer each message */
-+	for (i = 0; i < num; i++) {
-+#ifdef FALCON_FIX_ME
-+		/* disable bus */
-+		i2c_w32_mask(I2C_RUN_CTRL_RUN_EN, 0, run_ctrl);
-+		/* enable bus */
-+		i2c_w32_mask(0, I2C_RUN_CTRL_RUN_EN, run_ctrl);
-+#endif
++	/* error interrupt */
++	if (i_raw & I2C_RIS_I2C_ERR_INT_INTOCC) {
++		i_err = i2c_r32(err_irqss);
++		PRINTK("i_err 0x%08X bus_stat 0x%04X\n",
++			i_err, i2c_r32(bus_stat));
 +
-+		/* clear bus status */
-+		spin_lock_irqsave(&priv->lock, flags);
-+		priv->status = 0;
-+		spin_unlock_irqrestore(&priv->lock, flags);
++		/* tx fifo overflow (8) */
++		if (i_err & I2C_ERR_IRQSS_TXF_OFL)
++			priv->msg_err |= FALCON_I2C_TX_OFL;
 +
-+		/* wait for the bus to become ready */
-+		ret = falcon_i2c_ready(priv);
-+		if (ret)
-+			return ret;
++		/* tx fifo underflow (4) */
++		if (i_err & I2C_ERR_IRQSS_TXF_UFL)
++			priv->msg_err |= FALCON_I2C_TX_UFL;
 +
-+		/* transfer message */
-+		ret = falcon_i2c_xfer_msg(priv, &msg[i]);
++		/* rx fifo overflow (2) */
++		if (i_err & I2C_ERR_IRQSS_RXF_OFL)
++			priv->msg_err |= FALCON_I2C_RX_OFL;
 +
-+		if (ret)
-+			return ret;
++		/* rx fifo underflow (1) */
++		if (i_err & I2C_ERR_IRQSS_RXF_UFL)
++			priv->msg_err |= FALCON_I2C_RX_UFL;
 +
-+		/* check for unhandled errors */
-+		spin_lock_irqsave(&priv->lock, flags);
-+		if (FALCON_I2C_ERROR(priv))
-+			ret = priv->status;
-+		spin_unlock_irqrestore(&priv->lock, flags);
++		i2c_w32(i_err, err_irqsc);
++	}
 +
-+		if (ret) {
-+			dev_warn(priv->dev, "message %u unhandled error 0x%x\n",
-+				i, ret);
++	/* protocol interrupt */
++	if (i_raw & I2C_RIS_I2C_P_INT_INTOCC)
++		falcon_i2c_isr_prot(priv);
 +
-+			return ret;
-+		}
-+	}
++	if ((priv->msg_err) || (priv->status == STATUS_STOP))
++		complete(&priv->cmd_complete);
 +
-+	return 0;
++	return IRQ_HANDLED;
 +}
 +
-+static u32 falcon_i2c_func(struct i2c_adapter *adap)
++static u32 falcon_i2c_functionality(struct i2c_adapter *adap)
 +{
-+	return I2C_FUNC_I2C | I2C_FUNC_10BIT_ADDR | I2C_FUNC_SMBUS_EMUL;
++	return	I2C_FUNC_I2C |
++		I2C_FUNC_10BIT_ADDR |
++		I2C_FUNC_SMBUS_EMUL;
 +}
 +
 +static struct i2c_algorithm falcon_i2c_algorithm = {
 +	.master_xfer	= falcon_i2c_xfer,
-+	.functionality	= falcon_i2c_func,
++	.functionality	= falcon_i2c_functionality,
 +};
 +
-+static int falcon_i2c_hw_init(struct i2c_adapter *adap)
-+{
-+	struct falcon_i2c *priv = i2c_get_adapdata(adap);
-+
-+	/* disable bus */
-+	i2c_w32_mask(I2C_RUN_CTRL_RUN_EN, 0, run_ctrl);
-+
-+	/* set normal operation clock divider */
-+	i2c_w32(1 << I2C_CLC_RMC_OFFSET, clc);
-+
-+	/* set frequency */
-+	if (priv->mode == FALCON_I2C_MODE_100) {
-+		dev_dbg(priv->dev, "set standard mode (100 kHz)\n");
-+
-+		i2c_w32(0, fdiv_high_cfg);
-+
-+		i2c_w32((1 << I2C_FDIV_CFG_INC_OFFSET)
-+			| (499 << I2C_FDIV_CFG_DEC_OFFSET),
-+			fdiv_cfg);
-+	} else if (priv->mode == FALCON_I2C_MODE_400) {
-+		dev_dbg(priv->dev, "set fast mode (400 kHz)\n");
-+
-+		i2c_w32(0, fdiv_high_cfg);
-+
-+		i2c_w32((1 << I2C_FDIV_CFG_INC_OFFSET)
-+			| (124 << I2C_FDIV_CFG_DEC_OFFSET),
-+			fdiv_cfg);
-+	} else if (priv->mode == FALCON_I2C_MODE_3400) {
-+		dev_dbg(priv->dev, "set high mode (3.4 MHz)\n");
-+
-+		i2c_w32(0, fdiv_cfg);
-+
-+		/* TODO recalculate value for 100MHz input */
-+		i2c_w32((41 << I2C_FDIV_CFG_INC_OFFSET)
-+			| (152 << I2C_FDIV_CFG_DEC_OFFSET),
-+			fdiv_high_cfg);
-+	} else {
-+		dev_warn(priv->dev, "unknown mode\n");
-+
-+		return -ENODEV;
-+	}
-+
-+	/* configure fifo */
-+	i2c_w32(I2C_FIFO_CFG_TXFC /* tx fifo as flow controller */
-+		| I2C_FIFO_CFG_RXFC /* rx fifo as flow controller */
-+		| I2C_FIFO_CFG_TXFA_TXFA2 /* tx fifo 4-byte aligned */
-+		| I2C_FIFO_CFG_RXFA_RXFA2 /* rx fifo 4-byte aligned */
-+		| I2C_FIFO_CFG_TXBS_TXBS0 /* tx fifo burst size is 1 word */
-+		| I2C_FIFO_CFG_RXBS_RXBS0, /* rx fifo burst size is 1 word */
-+		fifo_cfg);
-+
-+	/* configure address */
-+	falcon_addr_configure(priv, priv->ten_bit);
-+
-+	/* enable bus */
-+	i2c_w32_mask(0, I2C_RUN_CTRL_RUN_EN, run_ctrl);
-+
-+	/* mask burst interrupts */
-+	i2c_w32_mask(I2C_IMSC_LBREQ_INT_EN | I2C_IMSC_BREQ_INT_EN, 0, imsc);
-+
-+	/* enable interrupts */
-+	i2c_w32(I2C_IMSC_LBREQ_INT_EN
-+		| I2C_IMSC_BREQ_INT_EN
-+		| I2C_IMSC_I2C_P_INT_EN
-+		| I2C_IMSC_I2C_ERR_INT_EN,
-+		imsc);
-+
-+	return 0;
-+}
-+
 +static int __devinit falcon_i2c_probe(struct platform_device *pdev)
 +{
 +	int ret = 0;
@@ -649,12 +637,26 @@
 +	strlcpy(adap->name, DRV_NAME "-adapter", sizeof(adap->name));
 +	adap->algo = &falcon_i2c_algorithm;
 +
-+	priv->ten_bit = 0;
 +	priv->mode = FALCON_I2C_MODE_100;
 +	priv->clk = clk;
 +	priv->dev = &pdev->dev;
 +
-+	spin_lock_init(&priv->lock);
++	init_completion(&priv->cmd_complete);
++	mutex_init(&priv->mutex);
++
++	ret = ltq_gpio_request(107, 0, 0, 0, DRV_NAME":sda");
++	if (ret) {
++		dev_err(&pdev->dev, "I2C gpio 107 (sda) not available\n");
++		ret = -ENXIO;
++		goto err_free_priv;
++	}
++	ret = ltq_gpio_request(108, 0, 0, 0, DRV_NAME":scl");
++	if (ret) {
++		gpio_free(107);
++		dev_err(&pdev->dev, "I2C gpio 108 (scl) not available\n");
++		ret = -ENXIO;
++		goto err_free_priv;
++	}
 +
 +	ioarea = request_mem_region(mmres->start, resource_size(mmres),
 +					 pdev->name);
@@ -662,7 +664,7 @@
 +	if (ioarea == NULL) {
 +		dev_err(&pdev->dev, "I2C region already claimed\n");
 +		ret = -ENXIO;
-+		goto err_free_priv;
++		goto err_free_gpio;
 +	}
 +
 +	/* map memory */
@@ -674,7 +676,7 @@
 +	}
 +
 +	priv->irq_lb = irqres_lb->start;
-+	ret = request_irq(priv->irq_lb, falcon_i2c_isr, IRQF_DISABLED,
++	ret = request_irq(priv->irq_lb, falcon_i2c_isr_burst, IRQF_DISABLED,
 +			  irqres_lb->name, priv);
 +	if (ret) {
 +		dev_err(&pdev->dev, "can't get last burst IRQ %d\n", irqres_lb->start);
@@ -683,7 +685,7 @@
 +	}
 +
 +	priv->irq_b = irqres_b->start;
-+	ret = request_irq(priv->irq_b, falcon_i2c_isr, IRQF_DISABLED,
++	ret = request_irq(priv->irq_b, falcon_i2c_isr_burst, IRQF_DISABLED,
 +			  irqres_b->name, priv);
 +	if (ret) {
 +		dev_err(&pdev->dev, "can't get burst IRQ %d\n", irqres_b->start);
@@ -728,8 +730,6 @@
 +		(i2c_r32(id) & I2C_ID_ID_MASK) >> I2C_ID_ID_OFFSET,
 +		(i2c_r32(id) & I2C_ID_REV_MASK) >> I2C_ID_REV_OFFSET);
 +
-+	init_completion(&priv->done);
-+
 +	/* initialize HW */
 +	ret = falcon_i2c_hw_init(adap);
 +	if (ret) {
@@ -737,6 +737,8 @@
 +		goto err_remove_adapter;
 +	}
 +
++	dev_info(&pdev->dev, "version %s\n", DRV_VERSION);
++
 +	return 0;
 +
 +err_remove_adapter:
@@ -761,6 +763,10 @@
 +err_release_region:
 +	release_mem_region(mmres->start, resource_size(mmres));
 +
++err_free_gpio:
++	gpio_free(108);
++	gpio_free(107);
++
 +err_free_priv:
 +	kfree(priv);
 +
@@ -784,6 +790,11 @@
 +	free_irq(priv->irq_err, priv);
 +	free_irq(priv->irq_p, priv);
 +
++	iounmap(priv->membase);
++
++	gpio_free(108);
++	gpio_free(107);
++
 +	kfree(priv);
 +
 +	mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -810,7 +821,7 @@
 +	ret = platform_driver_register(&falcon_i2c_driver);
 +
 +	if (ret)
-+		printk(KERN_DEBUG DRV_NAME ": can't register platform driver");
++		pr_debug(DRV_NAME ": can't register platform driver\n");
 +
 +	return ret;
 +}
@@ -824,5 +835,6 @@
 +module_exit(falcon_i2c_exit);
 +
 +MODULE_DESCRIPTION("Lantiq FALC(tm) ON - I2C bus adapter");
-+MODULE_ALIAS("platform:i2c_falcon");
++MODULE_ALIAS("platform:" DRV_NAME);
 +MODULE_LICENSE("GPL");
++MODULE_VERSION(DRV_VERSION);
diff --git a/target/linux/lantiq/patches-3.0/130-falcon-spi-flash.patch b/target/linux/lantiq/patches-3.0/130-falcon-spi-flash.patch
index 94f13c98b2..cf618e046d 100644
--- a/target/linux/lantiq/patches-3.0/130-falcon-spi-flash.patch
+++ b/target/linux/lantiq/patches-3.0/130-falcon-spi-flash.patch
@@ -1,6 +1,6 @@
 --- a/drivers/spi/Makefile
 +++ b/drivers/spi/Makefile
-@@ -55,6 +55,7 @@ obj-$(CONFIG_SPI_SH_SCI)		+= spi_sh_sci.
+@@ -56,6 +56,7 @@ obj-$(CONFIG_SPI_SH_SCI)		+= spi_sh_sci.
  obj-$(CONFIG_SPI_SH_MSIOF)		+= spi_sh_msiof.o
  obj-$(CONFIG_SPI_STMP3XXX)		+= spi_stmp.o
  obj-$(CONFIG_SPI_NUC900)		+= spi_nuc900.o
@@ -484,7 +484,7 @@
 +MODULE_DESCRIPTION("Lantiq Falcon SPI controller driver");
 --- a/drivers/spi/Kconfig
 +++ b/drivers/spi/Kconfig
-@@ -210,6 +210,10 @@ config SPI_MPC52xx
+@@ -219,6 +219,10 @@ config SPI_MPC52xx
  	  This drivers supports the MPC52xx SPI controller in master SPI
  	  mode.
  
diff --git a/target/linux/lantiq/patches-3.0/150-falcon-easy98020.patch b/target/linux/lantiq/patches-3.0/150-falcon-easy98020.patch
index 7defccba04..7ddf77ab21 100644
--- a/target/linux/lantiq/patches-3.0/150-falcon-easy98020.patch
+++ b/target/linux/lantiq/patches-3.0/150-falcon-easy98020.patch
@@ -116,7 +116,7 @@
 +			easy98020_init);
 --- a/arch/mips/lantiq/falcon/Kconfig
 +++ b/arch/mips/lantiq/falcon/Kconfig
-@@ -6,6 +6,10 @@
+@@ -6,6 +6,10 @@ config LANTIQ_MACH_EASY98000
  	bool "Easy98000"
  	default y
  
@@ -129,7 +129,7 @@
  endif
 --- a/arch/mips/lantiq/falcon/Makefile
 +++ b/arch/mips/lantiq/falcon/Makefile
-@@ -3,3 +3,4 @@
+@@ -3,3 +3,4 @@ obj-y += softdog_vpe.o
  obj-$(CONFIG_LANTIQ_MACH_EASY98000) += addon-easy98000.o
  obj-$(CONFIG_LANTIQ_MACH_EASY98000) += mach-easy98000.o
  obj-$(CONFIG_LANTIQ_MACH_EASY98000) += dev-leds-easy98000-cpld.o
diff --git a/target/linux/lantiq/patches-3.0/160-falcon-95C3AM1.patch b/target/linux/lantiq/patches-3.0/160-falcon-95C3AM1.patch
index f18d42c07f..7245eb5b62 100644
--- a/target/linux/lantiq/patches-3.0/160-falcon-95C3AM1.patch
+++ b/target/linux/lantiq/patches-3.0/160-falcon-95C3AM1.patch
@@ -102,7 +102,7 @@
 +			board_95C3AM1_init);
 --- a/arch/mips/lantiq/falcon/Kconfig
 +++ b/arch/mips/lantiq/falcon/Kconfig
-@@ -10,6 +10,10 @@
+@@ -10,6 +10,10 @@ config LANTIQ_MACH_EASY98020
  	bool "Easy98020"
  	default y
  
@@ -115,14 +115,14 @@
  endif
 --- a/arch/mips/lantiq/falcon/Makefile
 +++ b/arch/mips/lantiq/falcon/Makefile
-@@ -4,3 +4,4 @@
+@@ -4,3 +4,4 @@ obj-$(CONFIG_LANTIQ_MACH_EASY98000) += a
  obj-$(CONFIG_LANTIQ_MACH_EASY98000) += mach-easy98000.o
  obj-$(CONFIG_LANTIQ_MACH_EASY98000) += dev-leds-easy98000-cpld.o
  obj-$(CONFIG_LANTIQ_MACH_EASY98020) += mach-easy98020.o
 +obj-$(CONFIG_LANTIQ_MACH_95C3AM1)   += mach-95C3AM1.o
 --- a/arch/mips/lantiq/machtypes.h
 +++ b/arch/mips/lantiq/machtypes.h
-@@ -21,6 +21,7 @@
+@@ -21,6 +21,7 @@ enum lantiq_mach_type {
  	LANTIQ_MACH_EASY98000SF,	/* Falcon Eval Board, Serial Flash */
  	LANTIQ_MACH_EASY98000NAND,	/* Falcon Eval Board, NAND Flash */
  	LANTIQ_MACH_EASY98020,		/* Falcon Reference Board */
diff --git a/target/linux/lantiq/patches-3.0/170-falcon-dm9000-polling.patch b/target/linux/lantiq/patches-3.0/170-falcon-dm9000-polling.patch
index 83763182e5..64313c5968 100644
--- a/target/linux/lantiq/patches-3.0/170-falcon-dm9000-polling.patch
+++ b/target/linux/lantiq/patches-3.0/170-falcon-dm9000-polling.patch
@@ -8,7 +8,7 @@
  #include <linux/module.h>
  #include <linux/ioport.h>
  #include <linux/netdevice.h>
-@@ -125,6 +126,8 @@
+@@ -125,6 +126,8 @@ typedef struct board_info {
  	struct delayed_work phy_poll;
  	struct net_device  *ndev;
  
@@ -17,7 +17,7 @@
  	spinlock_t	lock;
  
  	struct mii_if_info mii;
-@@ -824,6 +827,8 @@
+@@ -824,6 +827,8 @@ static void dm9000_timeout(struct net_de
  	netif_stop_queue(dev);
  	dm9000_reset(db);
  	dm9000_init_dm9000(dev);
@@ -26,7 +26,7 @@
  	/* We can accept TX packets again */
  	dev->trans_start = jiffies; /* prevent tx timeout */
  	netif_wake_queue(dev);
-@@ -895,6 +900,12 @@
+@@ -895,6 +900,12 @@ dm9000_start_xmit(struct sk_buff *skb, s
  	/* free this SKB */
  	dev_kfree_skb(skb);
  
@@ -39,7 +39,7 @@
  	return NETDEV_TX_OK;
  }
  
-@@ -1136,6 +1147,18 @@
+@@ -1136,6 +1147,18 @@ static void dm9000_poll_controller(struc
  }
  #endif
  
@@ -58,7 +58,7 @@
  /*
   *  Open the interface.
   *  The interface is opened whenever "ifconfig" actives it.
-@@ -1149,14 +1172,15 @@
+@@ -1149,14 +1172,15 @@ dm9000_open(struct net_device *dev)
  	if (netif_msg_ifup(db))
  		dev_dbg(db->dev, "enabling %s\n", dev->name);
  
@@ -80,7 +80,7 @@
  	/* GPIO0 on pre-activate PHY, Reg 1F is not set by reset */
  	iow(db, DM9000_GPR, 0);	/* REG_1F bit0 activate phyxcer */
  	mdelay(1); /* delay needs by DM9000B */
-@@ -1165,8 +1189,14 @@
+@@ -1165,8 +1189,14 @@ dm9000_open(struct net_device *dev)
  	dm9000_reset(db);
  	dm9000_init_dm9000(dev);
  
@@ -97,7 +97,7 @@
  
  	/* Init driver variable */
  	db->dbug_cnt = 0;
-@@ -1174,6 +1204,9 @@
+@@ -1174,6 +1204,9 @@ dm9000_open(struct net_device *dev)
  	mii_check_media(&db->mii, netif_msg_link(db), 1);
  	netif_start_queue(dev);
  	
@@ -107,7 +107,7 @@
  	dm9000_schedule_poll(db);
  
  	return 0;
-@@ -1371,6 +1404,7 @@
+@@ -1371,6 +1404,7 @@ dm9000_probe(struct platform_device *pde
  	mutex_init(&db->addr_lock);
  
  	INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work);
diff --git a/target/linux/lantiq/patches-3.0/180-falcon-linux3.0.patch b/target/linux/lantiq/patches-3.0/180-falcon-linux3.0.patch
index 6dcfef376a..3dd79640e7 100644
--- a/target/linux/lantiq/patches-3.0/180-falcon-linux3.0.patch
+++ b/target/linux/lantiq/patches-3.0/180-falcon-linux3.0.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/irq.c
 +++ b/arch/mips/lantiq/irq.c
-@@ -51,6 +51,7 @@
+@@ -52,6 +52,7 @@
  #define ltq_eiu_w32(x, y)	ltq_w32((x), ltq_eiu_membase + (y))
  #define ltq_eiu_r32(x)		ltq_r32(ltq_eiu_membase + (x))
  
@@ -8,7 +8,7 @@
  static unsigned short ltq_eiu_irq[MAX_EIU] = {
  	LTQ_EIU_IR0,
  	LTQ_EIU_IR1,
-@@ -59,6 +60,7 @@
+@@ -60,6 +61,7 @@ static unsigned short ltq_eiu_irq[MAX_EI
  	LTQ_EIU_IR4,
  	LTQ_EIU_IR5,
  };
@@ -16,7 +16,7 @@
  
  static struct resource ltq_icu_resource = {
  	.name	= "icu",
-@@ -67,15 +69,19 @@
+@@ -68,15 +70,19 @@ static struct resource ltq_icu_resource
  	.flags	= IORESOURCE_MEM,
  };
  
@@ -36,7 +36,7 @@
  
  void ltq_disable_irq(struct irq_data *d)
  {
-@@ -120,6 +126,7 @@
+@@ -122,6 +128,7 @@ void ltq_enable_irq(struct irq_data *d)
  	ltq_icu_w32(ltq_icu_r32(ier) | (1 << irq_nr), ier);
  }
  
@@ -44,7 +44,7 @@
  static unsigned int ltq_startup_eiu_irq(struct irq_data *d)
  {
  	int i;
-@@ -159,6 +166,7 @@
+@@ -161,6 +168,7 @@ static void ltq_shutdown_eiu_irq(struct
  		}
  	}
  }
@@ -52,7 +52,7 @@
  
  static struct irq_chip ltq_irq_type = {
  	"icu",
-@@ -170,6 +178,7 @@
+@@ -172,6 +180,7 @@ static struct irq_chip ltq_irq_type = {
  	.irq_mask_ack = ltq_mask_and_ack_irq,
  };
  
@@ -60,7 +60,7 @@
  static struct irq_chip ltq_eiu_type = {
  	"eiu",
  	.irq_startup = ltq_startup_eiu_irq,
-@@ -181,6 +190,7 @@
+@@ -183,6 +192,7 @@ static struct irq_chip ltq_eiu_type = {
  	.irq_mask = ltq_disable_irq,
  	.irq_mask_ack = ltq_mask_and_ack_irq,
  };
@@ -68,7 +68,7 @@
  
  static void ltq_hw_irqdispatch(int module)
  {
-@@ -196,10 +206,12 @@
+@@ -198,10 +208,12 @@ static void ltq_hw_irqdispatch(int modul
  	irq = __fls(irq);
  	do_IRQ((int)irq + INT_NUM_IM0_IRL0 + (INT_NUM_IM_OFFSET * module));
  
@@ -81,7 +81,7 @@
  }
  
  #define DEFINE_HWx_IRQDISPATCH(x)					\
-@@ -262,6 +274,7 @@
+@@ -264,6 +276,7 @@ void __init arch_init_irq(void)
  	if (!ltq_icu_membase)
  		panic("Failed to remap icu memory\n");
  
@@ -89,7 +89,7 @@
  	if (insert_resource(&iomem_resource, &ltq_eiu_resource) < 0)
  		panic("Failed to insert eiu memory\n");
  
-@@ -273,6 +286,7 @@
+@@ -275,6 +288,7 @@ void __init arch_init_irq(void)
  				resource_size(&ltq_eiu_resource));
  	if (!ltq_eiu_membase)
  		panic("Failed to remap eiu memory\n");
@@ -97,7 +97,7 @@
  
  	/* make sure all irqs are turned off by default */
  	for (i = 0; i < 5; i++)
-@@ -298,6 +312,7 @@
+@@ -300,6 +314,7 @@ void __init arch_init_irq(void)
  
  	for (i = INT_NUM_IRQ0;
  		i <= (INT_NUM_IRQ0 + (5 * INT_NUM_IM_OFFSET)); i++)
@@ -105,7 +105,7 @@
  		if ((i == LTQ_EIU_IR0) || (i == LTQ_EIU_IR1) ||
  			(i == LTQ_EIU_IR2))
  			irq_set_chip_and_handler(i, &ltq_eiu_type,
-@@ -308,6 +323,7 @@
+@@ -310,6 +325,7 @@ void __init arch_init_irq(void)
  			irq_set_chip_and_handler(i, &ltq_eiu_type,
  				handle_level_irq);
  		else
@@ -115,7 +115,7 @@
  
 --- a/arch/mips/lantiq/clk.c
 +++ b/arch/mips/lantiq/clk.c
-@@ -46,6 +46,7 @@
+@@ -46,6 +46,7 @@ static struct clk cpu_clk_generic[] = {
  	},
  };
  
@@ -123,7 +123,7 @@
  static struct resource ltq_cgu_resource = {
  	.name	= "cgu",
  	.start	= LTQ_CGU_BASE_ADDR,
-@@ -55,6 +56,7 @@
+@@ -55,6 +56,7 @@ static struct resource ltq_cgu_resource
  
  /* remapped clock register range */
  void __iomem *ltq_cgu_membase;
@@ -131,7 +131,7 @@
  
  void clk_init(void)
  {
-@@ -120,6 +122,7 @@
+@@ -131,6 +133,7 @@ void __init plat_time_init(void)
  {
  	struct clk *clk;
  
@@ -139,7 +139,7 @@
  	if (insert_resource(&iomem_resource, &ltq_cgu_resource) < 0)
  		panic("Failed to insert cgu memory\n");
  
-@@ -133,6 +136,7 @@
+@@ -144,6 +147,7 @@ void __init plat_time_init(void)
  		pr_err("Failed to remap cgu memory\n");
  		unreachable();
  	}
diff --git a/target/linux/lantiq/patches-3.0/190-falcon-fix_include.patch b/target/linux/lantiq/patches-3.0/190-falcon-fix_include.patch
index 332ba93712..371a94bb5c 100644
--- a/target/linux/lantiq/patches-3.0/190-falcon-fix_include.patch
+++ b/target/linux/lantiq/patches-3.0/190-falcon-fix_include.patch
@@ -1,6 +1,6 @@
 --- /dev/null
 +++ b/arch/mips/include/asm/mach-lantiq/falcon/lantiq_soc.h
-@@ -0,0 +1,40 @@
+@@ -0,0 +1,45 @@
 +/*
 + *  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
@@ -39,5 +39,10 @@
 +#define LTQ_WDT_BASE_ADDR	0x1F8803F0
 +#define LTQ_WDT_SIZE		0x10
 +
++extern int ltq_gpio_request(unsigned int pin, unsigned int alt0,
++                          unsigned int alt1, unsigned int dir,
++                          const char *name);
++extern int ltq_gpio_mux_set(unsigned int pin, unsigned int mux);
++
 +#endif /* CONFIG_SOC_FALCON */
 +#endif /* _LTQ_XWAY_H__ */
diff --git a/target/linux/lantiq/patches-3.0/200-netif_receive_skb.patch b/target/linux/lantiq/patches-3.0/200-netif_receive_skb.patch
index 7e870e28f9..120266c999 100644
--- a/target/linux/lantiq/patches-3.0/200-netif_receive_skb.patch
+++ b/target/linux/lantiq/patches-3.0/200-netif_receive_skb.patch
@@ -1,6 +1,6 @@
 --- a/drivers/net/lantiq_etop.c
 +++ b/drivers/net/lantiq_etop.c
-@@ -155,8 +155,12 @@
+@@ -147,8 +147,12 @@ ltq_etop_hw_receive(struct ltq_etop_chan
  
  	skb_put(skb, len);
  	skb->dev = ch->netdev;
diff --git a/target/linux/lantiq/patches-3.0/210-mtd_uimage_split.patch b/target/linux/lantiq/patches-3.0/210-mtd_uimage_split.patch
index 16173a3d27..6c6a45ac04 100644
--- a/target/linux/lantiq/patches-3.0/210-mtd_uimage_split.patch
+++ b/target/linux/lantiq/patches-3.0/210-mtd_uimage_split.patch
@@ -1,7 +1,7 @@
 --- a/drivers/mtd/Kconfig
 +++ b/drivers/mtd/Kconfig
-@@ -57,6 +57,10 @@ config MTD_ROOTFS_SPLIT
- 	depends on MTD_PARTITIONS
+@@ -41,6 +41,10 @@ config MTD_ROOTFS_SPLIT
+ 	bool "Automatically split 'rootfs' partition for squashfs"
  	default y
  
 +config MTD_UIMAGE_SPLIT
@@ -13,7 +13,7 @@
  	---help---
 --- a/drivers/mtd/mtdpart.c
 +++ b/drivers/mtd/mtdpart.c
-@@ -860,6 +860,82 @@ static int refresh_rootfs_split(struct m
+@@ -861,6 +861,82 @@ static int refresh_rootfs_split(struct m
  }
  #endif /* CONFIG_MTD_ROOTFS_SPLIT */
  
@@ -96,7 +96,7 @@
  /*
   * This function, given a master MTD object and a partition table, creates
   * and registers slave MTD objects which are bound to the master according to
-@@ -893,6 +969,17 @@ int add_mtd_partitions(struct mtd_info *
+@@ -894,6 +970,17 @@ int add_mtd_partitions(struct mtd_info *
  
  		add_mtd_device(&slave->mtd);
  
diff --git a/target/linux/lantiq/patches-3.0/230-cmdline_hack.patch b/target/linux/lantiq/patches-3.0/230-cmdline_hack.patch
index 3b8c581763..8ce57ba0aa 100644
--- a/target/linux/lantiq/patches-3.0/230-cmdline_hack.patch
+++ b/target/linux/lantiq/patches-3.0/230-cmdline_hack.patch
@@ -35,7 +35,7 @@
  static void __init prom_init_cmdline(void)
  {
  	int argc = fw_arg0;
-@@ -53,6 +81,7 @@ static void __init prom_init_cmdline(voi
+@@ -55,6 +83,7 @@ static void __init prom_init_cmdline(voi
  			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
  		}
  	}
diff --git a/target/linux/lantiq/patches-3.0/240-udp_redirect.patch b/target/linux/lantiq/patches-3.0/240-udp_redirect.patch
index d66ca55cc4..79ecb7c2b2 100644
--- a/target/linux/lantiq/patches-3.0/240-udp_redirect.patch
+++ b/target/linux/lantiq/patches-3.0/240-udp_redirect.patch
@@ -250,7 +250,7 @@
 --- a/net/ipv4/Makefile
 +++ b/net/ipv4/Makefile
 @@ -14,6 +14,9 @@ obj-y     := route.o inetpeer.o protocol
- 	     inet_fragment.o
+ 	     inet_fragment.o ping.o
  
  obj-$(CONFIG_SYSCTL) += sysctl_net_ipv4.o
 +ifneq ($(CONFIG_IFX_UDP_REDIRECT),)
@@ -279,9 +279,9 @@
 -	int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
 +	int (*getfrag)(void *, char *, int, int, int, struct sk_buff *) = NULL;
  	struct sk_buff *skb;
+ 	struct ip_options_data opt_copy;
  
- 	if (len > 0xFFFF)
-@@ -818,7 +822,13 @@ int udp_sendmsg(struct kiocb *iocb, stru
+@@ -819,7 +823,13 @@ int udp_sendmsg(struct kiocb *iocb, stru
  	ipc.opt = NULL;
  	ipc.tx_flags = 0;
  
@@ -294,9 +294,9 @@
 +#endif /* IFX_UDP_REDIRECT */
 +		getfrag = is_udplite ? udplite_getfrag : ip_generic_getfrag;
  
+ 	fl4 = &inet->cork.fl.u.ip4;
  	if (up->pending) {
- 		/*
-@@ -1608,6 +1618,7 @@ int __udp4_lib_rcv(struct sk_buff *skb,
+@@ -1619,6 +1629,7 @@ int __udp4_lib_rcv(struct sk_buff *skb,
  	struct rtable *rt = skb_rtable(skb);
  	__be32 saddr, daddr;
  	struct net *net = dev_net(skb->dev);
@@ -304,7 +304,7 @@
  
  	/*
  	 *  Validate the packet.
-@@ -1640,7 +1651,16 @@ int __udp4_lib_rcv(struct sk_buff *skb,
+@@ -1651,7 +1662,16 @@ int __udp4_lib_rcv(struct sk_buff *skb,
  	sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
  
  	if (sk != NULL) {
@@ -322,7 +322,7 @@
  		sock_put(sk);
  
  		/* a return value > 0 means to resubmit the input, but
-@@ -1937,7 +1957,7 @@ struct proto udp_prot = {
+@@ -1948,7 +1968,7 @@ struct proto udp_prot = {
  	.clear_sk	   = sk_prot_clear_portaddr_nulls,
  };
  EXPORT_SYMBOL(udp_prot);
diff --git a/target/linux/lantiq/patches-3.0/250-mt-vpe.patch b/target/linux/lantiq/patches-3.0/250-mt-vpe.patch
index 6bb38b44ca..4a8e8d5534 100644
--- a/target/linux/lantiq/patches-3.0/250-mt-vpe.patch
+++ b/target/linux/lantiq/patches-3.0/250-mt-vpe.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/Kconfig
 +++ b/arch/mips/Kconfig
-@@ -1871,6 +1871,28 @@ config MIPS_VPE_LOADER
+@@ -1905,6 +1905,28 @@ config MIPS_VPE_LOADER
  	  Includes a loader for loading an elf relocatable object
  	  onto another VPE and running it.
  
@@ -140,7 +140,7 @@
  #define read_tc_gpr_sp()		mftgpr(29)
 --- a/arch/mips/kernel/Makefile
 +++ b/arch/mips/kernel/Makefile
-@@ -85,7 +85,8 @@ obj-$(CONFIG_MIPS32_O32)	+= binfmt_elfo3
+@@ -86,7 +86,8 @@ obj-$(CONFIG_MIPS32_O32)	+= binfmt_elfo3
  
  obj-$(CONFIG_KGDB)		+= kgdb.o
  obj-$(CONFIG_PROC_FS)		+= proc.o
diff --git a/target/linux/lantiq/patches-3.0/260-ar9-cache-split.patch b/target/linux/lantiq/patches-3.0/260-ar9-cache-split.patch
index 254fc61aa3..5ae2d11569 100644
--- a/target/linux/lantiq/patches-3.0/260-ar9-cache-split.patch
+++ b/target/linux/lantiq/patches-3.0/260-ar9-cache-split.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/Kconfig
 +++ b/arch/mips/Kconfig
-@@ -1878,6 +1878,28 @@ config IFX_VPE_EXT
+@@ -1912,6 +1912,28 @@ config IFX_VPE_EXT
  	help
  	  IFX included extensions in APRP
  
@@ -113,7 +113,7 @@
  	write_vpe_c0_cause(0);
 --- a/arch/mips/mm/c-r4k.c
 +++ b/arch/mips/mm/c-r4k.c
-@@ -1345,6 +1345,106 @@ static int __init setcoherentio(char *st
+@@ -1346,6 +1346,106 @@ static int __init setcoherentio(char *st
  __setup("coherentio", setcoherentio);
  #endif
  
@@ -220,7 +220,7 @@
  void __cpuinit r4k_cache_init(void)
  {
  	extern void build_clear_page(void);
-@@ -1364,6 +1464,78 @@ void __cpuinit r4k_cache_init(void)
+@@ -1365,6 +1465,78 @@ void __cpuinit r4k_cache_init(void)
  		break;
  	}
  
diff --git a/target/linux/lantiq/patches-3.0/410-spi2.patch b/target/linux/lantiq/patches-3.0/410-spi2.patch
index ee07188ed2..e7909caecd 100644
--- a/target/linux/lantiq/patches-3.0/410-spi2.patch
+++ b/target/linux/lantiq/patches-3.0/410-spi2.patch
@@ -10,7 +10,7 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
 
 --- a/drivers/spi/Kconfig
 +++ b/drivers/spi/Kconfig
-@@ -193,6 +193,14 @@
+@@ -202,6 +202,14 @@ config SPI_IMX
  	  This enables using the Freescale i.MX SPI controllers in master
  	  mode.
  
@@ -27,7 +27,7 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
  	depends on PARPORT && EXPERIMENTAL
 --- a/drivers/spi/Makefile
 +++ b/drivers/spi/Makefile
-@@ -26,6 +26,7 @@
+@@ -27,6 +27,7 @@ obj-$(CONFIG_SPI_EP93XX)		+= ep93xx_spi.
  obj-$(CONFIG_SPI_GPIO)			+= spi_gpio.o
  obj-$(CONFIG_SPI_GPIO_OLD)		+= spi_gpio_old.o
  obj-$(CONFIG_SPI_IMX)			+= spi_imx.o
diff --git a/target/linux/lantiq/patches-3.0/420-spi3.patch b/target/linux/lantiq/patches-3.0/420-spi3.patch
index 62b68d343e..f4bc661a18 100644
--- a/target/linux/lantiq/patches-3.0/420-spi3.patch
+++ b/target/linux/lantiq/patches-3.0/420-spi3.patch
@@ -34,7 +34,7 @@ Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
  
  #include <asm/bootinfo.h>
  #include <asm/irq.h>
-@@ -119,3 +120,41 @@
+@@ -119,3 +120,41 @@ ltq_register_etop(struct ltq_eth_data *e
  		platform_device_register(&ltq_etop);
  	}
  }
diff --git a/target/linux/lantiq/patches-3.0/440-dwc_otg.patch b/target/linux/lantiq/patches-3.0/440-dwc_otg.patch
index b833454705..73222ccacd 100644
--- a/target/linux/lantiq/patches-3.0/440-dwc_otg.patch
+++ b/target/linux/lantiq/patches-3.0/440-dwc_otg.patch
@@ -1,6 +1,6 @@
 --- a/drivers/usb/Kconfig
 +++ b/drivers/usb/Kconfig
-@@ -116,6 +116,8 @@
+@@ -116,6 +116,8 @@ source "drivers/usb/wusbcore/Kconfig"
  
  source "drivers/usb/host/Kconfig"
  
@@ -11,7 +11,7 @@
  source "drivers/usb/renesas_usbhs/Kconfig"
 --- a/drivers/usb/Makefile
 +++ b/drivers/usb/Makefile
-@@ -28,6 +28,8 @@
+@@ -28,6 +28,8 @@ obj-$(CONFIG_USB_C67X00_HCD)	+= c67x00/
  
  obj-$(CONFIG_USB_WUSB)		+= wusbcore/
  
@@ -15615,7 +15615,7 @@
 +#endif
 --- a/drivers/usb/core/hub.c
 +++ b/drivers/usb/core/hub.c
-@@ -2879,11 +2879,11 @@
+@@ -2885,11 +2885,11 @@ hub_port_init (struct usb_hub *hub, stru
  		udev->ttport = hdev->ttport;
  	} else if (udev->speed != USB_SPEED_HIGH
  			&& hdev->speed == USB_SPEED_HIGH) {
diff --git a/target/linux/lantiq/patches-3.0/450-mach-arv45xx.patch b/target/linux/lantiq/patches-3.0/450-mach-arv45xx.patch
index 711dd76768..a05d1a519c 100644
--- a/target/linux/lantiq/patches-3.0/450-mach-arv45xx.patch
+++ b/target/linux/lantiq/patches-3.0/450-mach-arv45xx.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/Kconfig
 +++ b/arch/mips/lantiq/xway/Kconfig
-@@ -6,6 +6,10 @@
+@@ -6,6 +6,10 @@ config LANTIQ_MACH_EASY50712
  	bool "Easy50712 - Danube"
  	default y
  
@@ -13,7 +13,7 @@
  endif
 --- a/arch/mips/lantiq/xway/Makefile
 +++ b/arch/mips/lantiq/xway/Makefile
-@@ -5,3 +5,4 @@
+@@ -5,3 +5,4 @@ obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o
  
  obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
  obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
@@ -518,7 +518,7 @@
 +			arv752dpw22_init);
 --- a/arch/mips/lantiq/machtypes.h
 +++ b/arch/mips/lantiq/machtypes.h
-@@ -22,6 +22,17 @@
+@@ -22,6 +22,17 @@ enum lantiq_mach_type {
  	LANTIQ_MACH_EASY98000NAND,	/* Falcon Eval Board, NAND Flash */
  	LANTIQ_MACH_EASY98020,		/* Falcon Reference Board */
  	LANTIQ_MACH_95C3AM1,		/* Board 95C3AM1 */
diff --git a/target/linux/lantiq/patches-3.0/460-mach-dgn3500.patch b/target/linux/lantiq/patches-3.0/460-mach-dgn3500.patch
index 1d074ec85d..dc904255f2 100644
--- a/target/linux/lantiq/patches-3.0/460-mach-dgn3500.patch
+++ b/target/linux/lantiq/patches-3.0/460-mach-dgn3500.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/machtypes.h
 +++ b/arch/mips/lantiq/machtypes.h
-@@ -33,6 +33,9 @@
+@@ -33,6 +33,9 @@ enum lantiq_mach_type {
  	LANTIQ_MACH_ARV752DPW,		/* Arcor easybox a802 */
  	LANTIQ_MACH_ARV752DPW22,	/* Arcor easybox a803 */
  	LANTIQ_MACH_ARV7518PW,		/* ASTORIA */
@@ -12,7 +12,7 @@
  #endif
 --- a/arch/mips/lantiq/xway/Kconfig
 +++ b/arch/mips/lantiq/xway/Kconfig
-@@ -10,6 +10,10 @@
+@@ -10,6 +10,10 @@ config LANTIQ_MACH_ARV45XX
  	bool "ARV45XX"
  	default y
  
@@ -25,7 +25,7 @@
  endif
 --- a/arch/mips/lantiq/xway/Makefile
 +++ b/arch/mips/lantiq/xway/Makefile
-@@ -6,3 +6,4 @@
+@@ -6,3 +6,4 @@ obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o
  obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
  obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
  obj-$(CONFIG_LANTIQ_MACH_ARV45XX) += mach-arv45xx.o
diff --git a/target/linux/lantiq/patches-3.0/470-mach-gigasx76x.patch b/target/linux/lantiq/patches-3.0/470-mach-gigasx76x.patch
index 3cce208ec2..2c55032a62 100644
--- a/target/linux/lantiq/patches-3.0/470-mach-gigasx76x.patch
+++ b/target/linux/lantiq/patches-3.0/470-mach-gigasx76x.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/Kconfig
 +++ b/arch/mips/lantiq/xway/Kconfig
-@@ -14,6 +14,10 @@
+@@ -14,6 +14,10 @@ config LANTIQ_MACH_NETGEAR
  	bool "Netgear"
  	default y
  
@@ -13,7 +13,7 @@
  endif
 --- a/arch/mips/lantiq/xway/Makefile
 +++ b/arch/mips/lantiq/xway/Makefile
-@@ -7,3 +7,4 @@
+@@ -7,3 +7,4 @@ obj-$(CONFIG_LANTIQ_MACH_EASY50712) += m
  obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
  obj-$(CONFIG_LANTIQ_MACH_ARV45XX) += mach-arv45xx.o
  obj-$(CONFIG_LANTIQ_MACH_NETGEAR) += mach-netgear.o
@@ -132,7 +132,7 @@
 +			gigasx76x_init);
 --- a/arch/mips/lantiq/machtypes.h
 +++ b/arch/mips/lantiq/machtypes.h
-@@ -36,6 +36,9 @@
+@@ -36,6 +36,9 @@ enum lantiq_mach_type {
  
  	/* Netgear */
  	LANTIQ_MACH_DGN3500B,		/* Netgear DGN3500 */
diff --git a/target/linux/lantiq/patches-3.0/480-mach-easy98020.patch b/target/linux/lantiq/patches-3.0/480-mach-easy98020.patch
new file mode 100644
index 0000000000..46bd9db146
--- /dev/null
+++ b/target/linux/lantiq/patches-3.0/480-mach-easy98020.patch
@@ -0,0 +1,27 @@
+--- a/arch/mips/lantiq/falcon/mach-easy98020.c
++++ b/arch/mips/lantiq/falcon/mach-easy98020.c
+@@ -111,3 +111,13 @@ MIPS_MACHINE(LANTIQ_MACH_EASY98020,
+ 			"EASY98020",
+ 			"EASY98020 Eval Board",
+ 			easy98020_init);
++
++MIPS_MACHINE(LANTIQ_MACH_EASY98020_1LAN,
++			"EASY98020_1LAN",
++			"EASY98020 Eval Board (1 LAN port)",
++			easy98020_init);
++
++MIPS_MACHINE(LANTIQ_MACH_EASY98020_2LAN,
++			"EASY98020_2LAN",
++			"EASY98020 Eval Board (2 LAN ports)",
++			easy98020_init);
+--- a/arch/mips/lantiq/machtypes.h
++++ b/arch/mips/lantiq/machtypes.h
+@@ -21,6 +21,8 @@ enum lantiq_mach_type {
+ 	LANTIQ_MACH_EASY98000SF,	/* Falcon Eval Board, Serial Flash */
+ 	LANTIQ_MACH_EASY98000NAND,	/* Falcon Eval Board, NAND Flash */
+ 	LANTIQ_MACH_EASY98020,		/* Falcon Reference Board */
++	LANTIQ_MACH_EASY98020_1LAN,	/* Falcon Reference Board (1 LAN port) */
++	LANTIQ_MACH_EASY98020_2LAN,	/* Falcon Reference Board (2 LAN ports) */
+ 	LANTIQ_MACH_95C3AM1,		/* Board 95C3AM1 */
+ 
+ 	/* Arcadyan */
diff --git a/target/linux/lantiq/patches-3.0/510-register_madwifi.patch b/target/linux/lantiq/patches-3.0/510-register_madwifi.patch
index c09c38d27b..9a8575fa7e 100644
--- a/target/linux/lantiq/patches-3.0/510-register_madwifi.patch
+++ b/target/linux/lantiq/patches-3.0/510-register_madwifi.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/devices.c
 +++ b/arch/mips/lantiq/xway/devices.c
-@@ -121,6 +121,16 @@
+@@ -121,6 +121,16 @@ ltq_register_etop(struct ltq_eth_data *e
  	}
  }
  
@@ -19,7 +19,7 @@
  		.start  = LTQ_SSC_BASE_ADDR,
 --- a/arch/mips/lantiq/xway/devices.h
 +++ b/arch/mips/lantiq/xway/devices.h
-@@ -19,5 +19,6 @@
+@@ -19,5 +19,6 @@ extern void ltq_register_ase_asc(void);
  extern void ltq_register_etop(struct ltq_eth_data *eth);
  extern void ltq_register_spi(struct ltq_spi_platform_data *pdata,
  	struct spi_board_info const *info, unsigned n);
diff --git a/target/linux/lantiq/patches-3.0/520-register_buttons.patch b/target/linux/lantiq/patches-3.0/520-register_buttons.patch
index 4674437f81..df48d7cfd9 100644
--- a/target/linux/lantiq/patches-3.0/520-register_buttons.patch
+++ b/target/linux/lantiq/patches-3.0/520-register_buttons.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/devices.c
 +++ b/arch/mips/lantiq/xway/devices.c
-@@ -131,6 +131,26 @@
+@@ -131,6 +131,26 @@ ltq_register_madwifi_eep(void)
  	lantiq_emulate_madwifi_eep = 1;
  }
  
@@ -37,7 +37,7 @@
  
  extern void ltq_register_gpio(void);
  extern void ltq_register_gpio_stp(void);
-@@ -20,5 +21,6 @@
+@@ -20,5 +21,6 @@ extern void ltq_register_etop(struct ltq
  extern void ltq_register_spi(struct ltq_spi_platform_data *pdata,
  	struct spi_board_info const *info, unsigned n);
  extern void ltq_register_madwifi_eep(void);
diff --git a/target/linux/lantiq/patches-3.0/530-register_tapi.patch b/target/linux/lantiq/patches-3.0/530-register_tapi.patch
index 286c0f0234..e2b0b30649 100644
--- a/target/linux/lantiq/patches-3.0/530-register_tapi.patch
+++ b/target/linux/lantiq/patches-3.0/530-register_tapi.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/devices.c
 +++ b/arch/mips/lantiq/devices.c
-@@ -120,3 +120,20 @@
+@@ -120,3 +120,20 @@ void __init ltq_register_pci(struct ltq_
  	pr_err("kernel is compiled without PCI support\n");
  }
  #endif
@@ -23,7 +23,7 @@
 +}
 --- a/arch/mips/lantiq/devices.h
 +++ b/arch/mips/lantiq/devices.h
-@@ -19,5 +19,6 @@
+@@ -19,5 +19,6 @@ extern void ltq_register_nor(struct phys
  extern void ltq_register_wdt(void);
  extern void ltq_register_asc(int port);
  extern void ltq_register_pci(struct ltq_pci_data *data);
@@ -32,7 +32,7 @@
  #endif
 --- a/arch/mips/lantiq/xway/mach-easy50712.c
 +++ b/arch/mips/lantiq/xway/mach-easy50712.c
-@@ -61,6 +61,7 @@
+@@ -61,6 +61,7 @@ static void __init easy50712_init(void)
  	ltq_register_nor(&easy50712_flash_data);
  	ltq_register_pci(&ltq_pci_data);
  	ltq_register_etop(&ltq_eth_data);
diff --git a/target/linux/lantiq/patches-3.0/550-register_ebu.patch b/target/linux/lantiq/patches-3.0/550-register_ebu.patch
index 92057d2059..564c166000 100644
--- a/target/linux/lantiq/patches-3.0/550-register_ebu.patch
+++ b/target/linux/lantiq/patches-3.0/550-register_ebu.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/lantiq/xway/devices.c
 +++ b/arch/mips/lantiq/xway/devices.c
-@@ -151,6 +151,29 @@
+@@ -151,6 +151,29 @@ ltq_register_gpio_buttons(struct gpio_bu
  	platform_device_register(&ltq_gpio_buttons_platform_device);
  }
  
diff --git a/target/linux/lantiq/patches-3.0/998-easy98000-asc1.patch b/target/linux/lantiq/patches-3.0/998-easy98000-asc1.patch
new file mode 100644
index 0000000000..6d6aea86ee
--- /dev/null
+++ b/target/linux/lantiq/patches-3.0/998-easy98000-asc1.patch
@@ -0,0 +1,59 @@
+activate serial driver for ASC1 if "use_asc1=x" is given on kernel commandline
+mux setup for pins is done via late_initcall, when the gpio driver is initialized
+
+only implemented for EASY98000, generic version t.b.d.
+--- a/arch/mips/lantiq/falcon/devices.c
++++ b/arch/mips/lantiq/falcon/devices.c
+@@ -75,6 +75,7 @@ void __init falcon_register_asc(int port
+ 	case 1:
+ 		platform_device_register_simple("ltq_asc", 1,
+ 			falcon_asc1_resources, ARRAY_SIZE(falcon_asc1_resources));
++		sys1_hw_activate(ACTS_ASC1_ACT);
+ 		break;
+ 	default:
+ 		break;
+--- a/arch/mips/lantiq/falcon/mach-easy98000.c
++++ b/arch/mips/lantiq/falcon/mach-easy98000.c
+@@ -15,6 +15,7 @@
+ #include <linux/spi/spi.h>
+ #include <linux/spi/spi_gpio.h>
+ #include <linux/spi/eeprom.h>
++#include <falcon/lantiq_soc.h>
+ 
+ #include "../machtypes.h"
+ 
+@@ -206,9 +207,34 @@ static void __init easy98000_spi_gpio_in
+ 	platform_device_register(&easy98000_spi_gpio_device);
+ }
+ 
++static int register_asc1 = 0;
++static int __init parse_asc1(char *p)
++{
++	register_asc1 = 1;
++	return 0;
++}
++__setup("use_asc1", parse_asc1);
++
++#define MUXC_SIF_RX_PIN		112
++#define MUXC_SIF_TX_PIN		113
++
++static int __init asc1_mux_setup(void)
++{
++	if (register_asc1) {
++		if (ltq_gpio_request(MUXC_SIF_RX_PIN, 1, 1, 0, "asc1-rx"))
++			return -1;
++		if (ltq_gpio_request(MUXC_SIF_TX_PIN, 1, 1, 1, "asc1-tx"))
++			return -1;
++	}
++	return 0;
++}
++late_initcall(asc1_mux_setup);
++
+ static void __init easy98000_init_common(void)
+ {
+ 	falcon_register_asc(0);
++	if (register_asc1)
++		falcon_register_asc(1);
+ 	falcon_register_gpio();
+ 	falcon_register_wdt();
+ 	falcon_register_i2c();