[at91] Update the kernel to 3.3.x series, remove patches that doesn't apply anymore

Signed-off-by: Claudio Mignanti <c.mignanti@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31371 3c298f89-4303-0410-b956-a3cf2f4a3e73

8 files changed, 60 insertions, 463 deletions

diff --git a/target/linux/at91/Makefile b/target/linux/at91/Makefile
index 1d65d750d..f20b7e607 100644
--- a/target/linux/at91/Makefile
+++ b/target/linux/at91/Makefile
@@ -14,7 +14,7 @@ FEATURES:=squashfs jffs2 targz
 CFLAGS:=-Os -pipe -march=armv5te -mtune=arm926ej-s -fno-caller-saves
 SUBTARGETS:=netus tqma9263 flexibity
 
-LINUX_VERSION:=2.6.38.8
+LINUX_VERSION:=3.3.2
 DEVICE_TYPE=
 
 include $(INCLUDE_DIR)/target.mk
diff --git a/target/linux/at91/config-default b/target/linux/at91/config-default
index 29c72347e..1ffbb76e6 100644
--- a/target/linux/at91/config-default
+++ b/target/linux/at91/config-default
@@ -1,28 +1,32 @@
 CONFIG_ALIGNMENT_TRAP=y
-# CONFIG_ARCH_AT572D940HF is not set
 CONFIG_ARCH_AT91=y
 # CONFIG_ARCH_AT91CAP9 is not set
 # CONFIG_ARCH_AT91RM9200 is not set
-# CONFIG_ARCH_AT91RM9200DK is not set
 # CONFIG_ARCH_AT91SAM9260 is not set
 # CONFIG_ARCH_AT91SAM9261 is not set
 # CONFIG_ARCH_AT91SAM9263 is not set
 # CONFIG_ARCH_AT91SAM9G10 is not set
-# CONFIG_ARCH_AT91SAM9G20 is not set
+CONFIG_ARCH_AT91SAM9G20=y
 # CONFIG_ARCH_AT91SAM9G45 is not set
 # CONFIG_ARCH_AT91SAM9RL is not set
 # CONFIG_ARCH_AT91X40 is not set
+CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
+CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
+CONFIG_ARCH_NR_GPIO=0
+# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
 CONFIG_ARCH_REQUIRE_GPIOLIB=y
 # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
 # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
 # CONFIG_ARCH_SUPPORTS_MSI is not set
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
+# CONFIG_ARCH_USES_GETTIMEOFFSET is not set
 CONFIG_ARM=y
+# CONFIG_ARM_CPU_SUSPEND is not set
 CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_NR_BANKS=8
 CONFIG_ARM_THUMB=y
 # CONFIG_AT91SAM9X_WATCHDOG is not set
-# CONFIG_AT91_ADC is not set
-CONFIG_AT91_EARLY_DBGU=y
+CONFIG_AT91_EARLY_DBGU0=y
 # CONFIG_AT91_EARLY_USART0 is not set
 # CONFIG_AT91_EARLY_USART1 is not set
 # CONFIG_AT91_EARLY_USART2 is not set
@@ -31,15 +35,17 @@ CONFIG_AT91_EARLY_DBGU=y
 # CONFIG_AT91_EARLY_USART5 is not set
 CONFIG_AT91_PMC_UNIT=y
 CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
+CONFIG_AT91_SAM9_ALT_RESET=y
 CONFIG_AT91_TIMER_HZ=100
 # CONFIG_ATMEL_PWM is not set
 # CONFIG_ATMEL_SSC is not set
 # CONFIG_ATMEL_TCLIB is not set
-CONFIG_BITREVERSE=y
+CONFIG_BCMA_POSSIBLE=y
 # CONFIG_BLK_DEV is not set
-# CONFIG_BLK_DEV_IDE_AT91 is not set
 # CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_CACHE_L2X0 is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CPU_32v5=y
 CONFIG_CPU_ABRT_EV5TJ=y
 CONFIG_CPU_ARM926T=y
@@ -52,22 +58,23 @@ CONFIG_CPU_CP15_MMU=y
 # CONFIG_CPU_ICACHE_DISABLE is not set
 CONFIG_CPU_PABRT_LEGACY=y
 CONFIG_CPU_TLB_V4WBI=y
+CONFIG_CPU_USE_DOMAINS=y
+CONFIG_CRC16=y
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_USER is not set
-CONFIG_DECOMPRESS_LZMA=y
 CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
-# CONFIG_DM9000 is not set
+# CONFIG_DW_WATCHDOG is not set
 CONFIG_EXT4_FS=y
-# CONFIG_FPE_FASTFPE is not set
-# CONFIG_FPE_NWFPE is not set
 CONFIG_FRAME_POINTER=y
-# CONFIG_FSNOTIFY is not set
+CONFIG_FS_MBCACHE=y
 CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
-CONFIG_GENERIC_FIND_LAST_BIT=y
+# CONFIG_GENERIC_CPU_DEVICES is not set
 CONFIG_GENERIC_GPIO=y
-CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_DEVICE=y
 CONFIG_GPIO_SYSFS=y
@@ -78,41 +85,51 @@ CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
 CONFIG_HAVE_AOUT=y
 CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_AT91_DBGU0=y
 CONFIG_HAVE_AT91_USART3=y
 CONFIG_HAVE_AT91_USART4=y
 CONFIG_HAVE_AT91_USART5=y
 CONFIG_HAVE_CLK=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACER=y
 CONFIG_HAVE_GENERIC_DMA_COHERENT=y
-CONFIG_HAVE_IDE=y
+CONFIG_HAVE_GENERIC_HARDIRQS=y
+CONFIG_HAVE_IRQ_WORK=y
 CONFIG_HAVE_KERNEL_GZIP=y
 CONFIG_HAVE_KERNEL_LZMA=y
 CONFIG_HAVE_KERNEL_LZO=y
-CONFIG_HAVE_KPROBES=y
-CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_KERNEL_XZ=y
 CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_NET_MACB=y
 CONFIG_HAVE_OPROFILE=y
 CONFIG_HAVE_PERF_EVENTS=y
 CONFIG_HAVE_PROC_CPU=y
-# CONFIG_HW_RANDOM is not set
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SPARSE_IRQ=y
 # CONFIG_ISDN is not set
+CONFIG_JBD2=y
+CONFIG_KTIME_SCALAR=y
 # CONFIG_LEDS is not set
-# CONFIG_LEDS_ATMEL_PWM is not set
 # CONFIG_LEDS_GPIO is not set
-CONFIG_MACB=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+# CONFIG_MACB is not set
 # CONFIG_MACH_ACMENETUSFOXG20 is not set
-# CONFIG_MACH_AT91RM9200EK is not set
 # CONFIG_MACH_AT91SAM9G20EK is not set
-# CONFIG_MACH_AT91SAM9G20EK_2MMC is not set
+# CONFIG_MACH_AT91SAM_DT is not set
 # CONFIG_MACH_CPU9G20 is not set
-# CONFIG_MACH_CSB337 is not set
 # CONFIG_MACH_GSIA18S is not set
-# CONFIG_MACH_NETUS_FOXBOARD is not set
-# CONFIG_MACH_ONEARM is not set
 # CONFIG_MACH_PCONTROL_G20 is not set
 # CONFIG_MACH_PORTUXG20 is not set
 # CONFIG_MACH_SNAPPER_9260 is not set
 # CONFIG_MACH_STAMP9G20 is not set
+# CONFIG_MACH_USB_A9G20 is not set
+CONFIG_MDIO_BOARDINFO=y
 # CONFIG_MFD_T7L66XB is not set
 # CONFIG_MII is not set
 CONFIG_MMC=y
@@ -123,25 +140,20 @@ CONFIG_MTD_DATAFLASH=y
 # CONFIG_MTD_DATAFLASH_OTP is not set
 # CONFIG_MTD_DATAFLASH_WRITE_VERIFY is not set
 CONFIG_NEED_DMA_MAP_STATE=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETUS_FOXGM is not set
-CONFIG_NETUS_HEARTBEAT_LED=y
-CONFIG_NETUS_SERIALS=y
-# CONFIG_NETUS_USE_DATAFLASH is not set
+CONFIG_NEED_PER_CPU_KM=y
 CONFIG_NLS=y
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_PAGE_OFFSET=0xC0000000
-# CONFIG_PATA_AT91 is not set
 # CONFIG_PCI_SYSCALL is not set
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PHYLIB=y
+CONFIG_PHYS_OFFSET=0x0
+# CONFIG_PREEMPT_RCU is not set
+# CONFIG_QUOTACTL is not set
 CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_AT91SAM9=y
-CONFIG_RTC_DRV_AT91SAM9_GPBR=0
-CONFIG_RTC_DRV_AT91SAM9_RTT=0
+# CONFIG_RTC_DRV_AT91SAM9 is not set
 # CONFIG_RTC_DRV_CMOS is not set
 # CONFIG_SCSI_DMA is not set
-CONFIG_SCSI_MOD=y
 # CONFIG_SDIO_UART is not set
 # CONFIG_SERIAL_8250 is not set
 CONFIG_SERIAL_ATMEL=y
@@ -157,54 +169,38 @@ CONFIG_SPI_SPIDEV=y
 CONFIG_SPLIT_PTLOCK_CPUS=999999
 # CONFIG_STAGING is not set
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
-#CONFIG_SND_ATMEL_SOC is not set
 CONFIG_UID16=y
 # CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB_ARCH_HAS_XHCI is not set
 CONFIG_USB_AT91=y
-# CONFIG_USB_AUDIO is not set
 # CONFIG_USB_CDC_COMPOSITE is not set
+CONFIG_USB_COMMON=y
 CONFIG_USB_ETH=y
-CONFIG_USB_ETH_EEM=y
+# CONFIG_USB_ETH_EEM is not set
 CONFIG_USB_ETH_RNDIS=y
 # CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_FUNCTIONFS is not set
+# CONFIG_USB_FUSB300 is not set
 CONFIG_USB_GADGET=y
 # CONFIG_USB_GADGETFS is not set
-# CONFIG_USB_GADGET_AMD5536UDC is not set
-CONFIG_USB_GADGET_AT91=y
-# CONFIG_USB_GADGET_ATMEL_USBA is not set
-# CONFIG_USB_GADGET_CI13XXX is not set
 # CONFIG_USB_GADGET_DEBUG_FILES is not set
 # CONFIG_USB_GADGET_DEBUG_FS is not set
-# CONFIG_USB_GADGET_DUALSPEED is not set
-# CONFIG_USB_GADGET_DUMMY_HCD is not set
-# CONFIG_USB_GADGET_FSL_QE is not set
-# CONFIG_USB_GADGET_FSL_USB2 is not set
-# CONFIG_USB_GADGET_GOKU is not set
-# CONFIG_USB_GADGET_IMX is not set
-# CONFIG_USB_GADGET_LANGWELL is not set
-# CONFIG_USB_GADGET_LH7A40X is not set
-# CONFIG_USB_GADGET_M66592 is not set
-# CONFIG_USB_GADGET_MUSB_HDRC is not set
-# CONFIG_USB_GADGET_NET2280 is not set
-# CONFIG_USB_GADGET_OMAP is not set
-# CONFIG_USB_GADGET_PXA25X is not set
-# CONFIG_USB_GADGET_PXA27X is not set
-# CONFIG_USB_GADGET_PXA_U2O is not set
-# CONFIG_USB_GADGET_R8A66597 is not set
-# CONFIG_USB_GADGET_S3C2410 is not set
-# CONFIG_USB_GADGET_S3C_HSOTG is not set
-CONFIG_USB_GADGET_SELECTED=y
 CONFIG_USB_GADGET_VBUS_DRAW=2
 # CONFIG_USB_G_DBGP is not set
+# CONFIG_USB_G_HID is not set
 # CONFIG_USB_G_NCM is not set
 # CONFIG_USB_G_PRINTER is not set
 # CONFIG_USB_G_SERIAL is not set
-# CONFIG_USB_MIDI_GADGET is not set
+# CONFIG_USB_M66592 is not set
+# CONFIG_USB_MV_UDC is not set
+# CONFIG_USB_NET2272 is not set
+# CONFIG_USB_R8A66597 is not set
 CONFIG_USB_SUPPORT=y
 # CONFIG_USB_ZERO is not set
 CONFIG_VECTORS_BASE=0xffff0000
 # CONFIG_VFP is not set
 # CONFIG_WLAN is not set
+CONFIG_XZ_DEC=y
 CONFIG_ZBOOT_ROM_BSS=0
 CONFIG_ZBOOT_ROM_TEXT=0
 CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/at91/flexibity/config-2.6.39 b/target/linux/at91/flexibity/config-default
index c19458680..c19458680 100644
--- a/target/linux/at91/flexibity/config-2.6.39
+++ b/target/linux/at91/flexibity/config-default
diff --git a/target/linux/at91/flexibity/target.mk b/target/linux/at91/flexibity/target.mk
index 5e4c46063..113d2bfca 100644
--- a/target/linux/at91/flexibity/target.mk
+++ b/target/linux/at91/flexibity/target.mk
@@ -8,7 +8,6 @@
 SUBTARGET:=flexibity
 BOARDNAME:=Flexibity Connect (AT91)
 FEATURES:=ext2 tgz usb
-LINUX_VERSION:=2.6.39
 
 define Target/Description
   Build fimware images for Flexibity Connect board.
diff --git a/target/linux/at91/netus/config-default b/target/linux/at91/netus/config-default
index c965f2395..a4287e735 100644
--- a/target/linux/at91/netus/config-default
+++ b/target/linux/at91/netus/config-default
@@ -1,8 +1,2 @@
 CONFIG_ARCH_AT91SAM9G20=y
-# CONFIG_ARCH_USES_GETTIMEOFFSET is not set
-CONFIG_CRC16=y
-CONFIG_JBD2=y
-CONFIG_MACH_NETUS_FOXBOARD=y
-# CONFIG_USB_FUNCTIONFS is not set
-# CONFIG_USB_G_HID is not set
-# CONFIG_USB_G_WEBCAM is not set
+CONFIG_MACH_ACMENETUSFOXG20=y
diff --git a/target/linux/at91/patches/100-at91_i2c.patch b/target/linux/at91/patches/100-at91_i2c.patch
deleted file mode 100644
index e78ffde08..000000000
--- a/target/linux/at91/patches/100-at91_i2c.patch
+++ /dev/null
@@ -1,285 +0,0 @@
---- a/drivers/i2c/busses/Kconfig
-+++ b/drivers/i2c/busses/Kconfig
-@@ -283,7 +283,7 @@ comment "I2C system bus drivers (mostly
- 
- config I2C_AT91
- 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
--	depends on ARCH_AT91 && EXPERIMENTAL && BROKEN
-+	depends on ARCH_AT91 && EXPERIMENTAL
- 	help
- 	  This supports the use of the I2C interface on Atmel AT91
- 	  processors.
---- a/drivers/i2c/busses/i2c-at91.c
-+++ b/drivers/i2c/busses/i2c-at91.c
-@@ -11,8 +11,18 @@
-     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.
-+
-+    D. Gilbert [20100318 AT91SAM9G20]
-+	- Check for NACK, a NACK will abort current tranfser,
-+          returned as errno=EREMOTEIO unless I2C_M_IGNORE_NAK is set
-+        - Only supports 7 bit I2C device (slave) address
-+	- clockrate adjustable (module_param).
- */
- 
-+
-+/* Uncomment following line to see dev_dbg() output in logs */
-+/* #define DEBUG 1 */
-+
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/err.h>
-@@ -32,26 +42,28 @@
- #define TWI_CLOCK		100000		/* Hz. max 400 Kbits/sec */
- 
- 
-+static unsigned int clockrate = TWI_CLOCK;
-+static unsigned int prev_clockrate = TWI_CLOCK;
- static struct clk *twi_clk;
- static void __iomem *twi_base;
- 
- #define at91_twi_read(reg)		__raw_readl(twi_base + (reg))
- #define at91_twi_write(reg, val)	__raw_writel((val), twi_base + (reg))
- 
--
- /*
-- * Initialize the TWI hardware registers.
-+ * Set TWI clock dividers based on clockrate (clock rate for SCL)
-  */
--static void __devinit at91_twi_hwinit(void)
-+static void at91_twi_clock_dividers(void)
- {
- 	unsigned long cdiv, ckdiv;
- 
--	at91_twi_write(AT91_TWI_IDR, 0xffffffff);	/* Disable all interrupts */
--	at91_twi_write(AT91_TWI_CR, AT91_TWI_SWRST);	/* Reset peripheral */
--	at91_twi_write(AT91_TWI_CR, AT91_TWI_MSEN);	/* Set Master mode */
-+	if (clockrate < 1000)
-+		clockrate = 1000;	
-+	else if (clockrate > 400000)
-+		clockrate = 400000;	
- 
--	/* Calcuate clock dividers */
--	cdiv = (clk_get_rate(twi_clk) / (2 * TWI_CLOCK)) - 3;
-+	/* Calculate clock dividers */
-+	cdiv = (clk_get_rate(twi_clk) / (2 * clockrate)) - 3;
- 	cdiv = cdiv + 1;	/* round up */
- 	ckdiv = 0;
- 	while (cdiv > 255) {
-@@ -61,41 +73,92 @@ static void __devinit at91_twi_hwinit(vo
- 
- 	if (cpu_is_at91rm9200()) {			/* AT91RM9200 Errata #22 */
- 		if (ckdiv > 5) {
--			printk(KERN_ERR "AT91 I2C: Invalid TWI_CLOCK value!\n");
-+			printk(KERN_ERR "i2c-at91: Invalid AT91RM9200 clock rate\n");
- 			ckdiv = 5;
- 		}
- 	}
-+	/* AT91SAM9G20 has 3 bits for ckdiv so it cannot exceed 7 */
-+	if (cpu_is_at91sam9g20()) {
-+		if (ckdiv > 7) {
-+			printk(KERN_ERR "i2c-at91: Invalid AT91SAM9G20 clock "
-+			       "rate, ckdiv=%lu\n", ckdiv);
-+			ckdiv = 7;
-+		}
-+	}
- 
- 	at91_twi_write(AT91_TWI_CWGR, (ckdiv << 16) | (cdiv << 8) | cdiv);
-+	prev_clockrate = clockrate;
- }
- 
- /*
-- * Poll the i2c status register until the specified bit is set.
-- * Returns 0 if timed out (100 msec).
-+ * Initialize the TWI hardware registers.
-  */
--static short at91_poll_status(unsigned long bit)
-+static void __devinit at91_twi_hwinit(void)
- {
--	int loop_cntr = 10000;
-+	at91_twi_write(AT91_TWI_IDR, 0xffffffff);  /* Disable all interrupts */
-+	at91_twi_write(AT91_TWI_CR, AT91_TWI_SWRST);     /* Reset peripheral */
-+	/* Set Master mode; Atmel suggests disabling slave mode */
-+	at91_twi_write(AT91_TWI_CR, AT91_TWI_MSEN | AT91_TWI_SVDIS);
- 
-+	at91_twi_clock_dividers();
-+}
-+
-+/*
-+ * Poll the i2c status register until the specified bit is set or a NACK
-+ * occurs. Returns 0 if timed out (50 msec). If nack_seen_p is non-NULL
-+ * then write 0 to it first, then if the NACK bit is set in the status
-+ * register then write 1 to it and immediately return with a value of 1.
-+ */
-+static short at91_poll_status(unsigned long bit, int * nack_seen_p)
-+{
-+	int loop_cntr = 5000;
-+	unsigned long stat;
-+
-+	if (nack_seen_p)
-+		*nack_seen_p = 0;
-+	if (clockrate <= 20000)
-+		loop_cntr = 100;
- 	do {
--		udelay(10);
--	} while (!(at91_twi_read(AT91_TWI_SR) & bit) && (--loop_cntr > 0));
-+		if (clockrate <= 20000)
-+			udelay(100);
-+		else if (clockrate <= 100000)
-+			udelay(10);
-+		else
-+			udelay(3);
-+		stat = at91_twi_read(AT91_TWI_SR);
-+		if ((stat & AT91_TWI_NACK) && nack_seen_p) {
-+			*nack_seen_p = 1;
-+			return 1;
-+		}
-+	} while (!(stat & bit) && (--loop_cntr > 0));
- 
- 	return (loop_cntr > 0);
- }
- 
- static int xfer_read(struct i2c_adapter *adap, unsigned char *buf, int length)
- {
-+	int nack_seen = 0;
-+	int sent_stop = 0;
-+
- 	/* Send Start */
--	at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
-+	if (1 == length) {
-+	    at91_twi_write(AT91_TWI_CR, AT91_TWI_START | AT91_TWI_STOP);
-+	    sent_stop = 1;
-+	} else
-+	    at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
- 
- 	/* Read data */
- 	while (length--) {
--		if (!length)	/* need to send Stop before reading last byte */
-+		/* send Stop before reading last byte (if not already done) */
-+		if ((0 == length) && (0 == sent_stop))
- 			at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
--		if (!at91_poll_status(AT91_TWI_RXRDY)) {
-+		if (!at91_poll_status(AT91_TWI_RXRDY, &nack_seen)) {
- 			dev_dbg(&adap->dev, "RXRDY timeout\n");
- 			return -ETIMEDOUT;
-+		} else if (nack_seen) {
-+			dev_dbg(&adap->dev, "read NACKed\n");
-+			/* NACK supplies Stop */
-+			return -EREMOTEIO;
- 		}
- 		*buf++ = (at91_twi_read(AT91_TWI_RHR) & 0xff);
- 	}
-@@ -105,16 +168,24 @@ static int xfer_read(struct i2c_adapter
- 
- static int xfer_write(struct i2c_adapter *adap, unsigned char *buf, int length)
- {
-+	int nack_seen = 0;
-+
- 	/* Load first byte into transmitter */
- 	at91_twi_write(AT91_TWI_THR, *buf++);
- 
--	/* Send Start */
-+	/* Send Start [AT91SAM9G20 does not need this on write] */
- 	at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
- 
- 	do {
--		if (!at91_poll_status(AT91_TWI_TXRDY)) {
-+		if (!at91_poll_status(AT91_TWI_TXRDY, &nack_seen)) {
- 			dev_dbg(&adap->dev, "TXRDY timeout\n");
-+			/* Set Master mode again */
-+			at91_twi_write(AT91_TWI_CR, AT91_TWI_MSEN);
- 			return -ETIMEDOUT;
-+		} else if (nack_seen) {
-+			dev_dbg(&adap->dev, "write NACKed\n");
-+			/* NACK supplies Stop */
-+			return -EREMOTEIO;
- 		}
- 
- 		length--;	/* byte was transmitted */
-@@ -123,7 +194,7 @@ static int xfer_write(struct i2c_adapter
- 			at91_twi_write(AT91_TWI_THR, *buf++);
- 	} while (length);
- 
--	/* Send Stop */
-+	/* Send Stop [AT91SAM9G20 does not need this on write] */
- 	at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
- 
- 	return 0;
-@@ -136,11 +207,19 @@ static int xfer_write(struct i2c_adapter
-  * Instead the "internal device address" has to be written using a separate
-  * i2c message.
-  * http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-September/024411.html
-+ * [dpg] By 2010 silicon bugs should be fixed, will need IADR for 10 bit device address
-  */
- static int at91_xfer(struct i2c_adapter *adap, struct i2c_msg *pmsg, int num)
- {
- 	int i, ret;
-+	int nack_seen = 0;
- 
-+	if (prev_clockrate != clockrate) {
-+		dev_dbg(&adap->dev, "at91_xfer: prev_clockrate=%u "
-+			"clockrate=%u, change\n", prev_clockrate, clockrate);
-+		at91_twi_clock_dividers();
-+		msleep(1);	/* let things settle */
-+	}
- 	dev_dbg(&adap->dev, "at91_xfer: processing %d messages:\n", num);
- 
- 	for (i = 0; i < num; i++) {
-@@ -158,13 +237,23 @@ static int at91_xfer(struct i2c_adapter
- 			else
- 				ret = xfer_write(adap, pmsg->buf, pmsg->len);
- 
--			if (ret)
--				return ret;
--
-+			if (ret) {
-+				if ((I2C_M_IGNORE_NAK & pmsg->flags) &&
-+				    (-EREMOTEIO == ret)) {
-+					dev_dbg(&adap->dev, "transfer "
-+						"NACKed, skip to next\n");
-+					pmsg++;
-+					continue;
-+				} else
-+					return ret;
-+			}
- 			/* Wait until transfer is finished */
--			if (!at91_poll_status(AT91_TWI_TXCOMP)) {
-+			if (!at91_poll_status(AT91_TWI_TXCOMP, &nack_seen)) {
- 				dev_dbg(&adap->dev, "TXCOMP timeout\n");
- 				return -ETIMEDOUT;
-+			} else if (nack_seen) {
-+				dev_dbg(&adap->dev, "TXCOMP NACKed\n");
-+				return -EREMOTEIO;
- 			}
- 		}
- 		dev_dbg(&adap->dev, "transfer complete\n");
-@@ -239,7 +328,8 @@ static int __devinit at91_i2c_probe(stru
- 		goto fail3;
- 	}
- 
--	dev_info(&pdev->dev, "AT91 i2c bus driver.\n");
-+	dev_info(&pdev->dev, "AT91 TWI (I2C) bus driver [SCL %d Hz]\n",
-+		 clockrate);
- 	return 0;
- 
- fail3:
-@@ -295,6 +385,11 @@ static int at91_i2c_resume(struct platfo
- #define at91_i2c_resume		NULL
- #endif
- 
-+/* I2C clock speed, in Hz 0-400kHz*/
-+module_param(clockrate, uint,  S_IRUGO | S_IWUSR);
-+MODULE_PARM_DESC(clockrate,
-+		 "SCL clock rate, 1000 to 400000 Hz (def: 100 kHz)");
-+
- /* work with "modprobe at91_i2c" from hotplugging or coldplugging */
- MODULE_ALIAS("platform:at91_i2c");
- 
-@@ -323,5 +418,5 @@ module_init(at91_i2c_init);
- module_exit(at91_i2c_exit);
- 
- MODULE_AUTHOR("Rick Bronson");
--MODULE_DESCRIPTION("I2C (TWI) driver for Atmel AT91");
-+MODULE_DESCRIPTION("I2C (TWI) master driver for Atmel AT91");
- MODULE_LICENSE("GPL");
diff --git a/target/linux/at91/patches/200-experimenta_adc_driver.patch b/target/linux/at91/patches/200-experimenta_adc_driver.patch
deleted file mode 100644
index 48bb61e36..000000000
--- a/target/linux/at91/patches/200-experimenta_adc_driver.patch
+++ /dev/null
@@ -1,23 +0,0 @@
---- a/drivers/misc/Kconfig
-+++ b/drivers/misc/Kconfig
-@@ -104,6 +104,10 @@ config ATMEL_TCB_CLKSRC_BLOCK
- 	  TC can be used for other purposes, such as PWM generation and
- 	  interval timing.
- 
-+config AT91_ADC
-+	tristate "AT91 ADC converter"
-+	depends on ARCH_AT91 && SYSFS
-+
- config IBM_ASM
- 	tristate "Device driver for IBM RSA service processor"
- 	depends on X86 && PCI && INPUT && EXPERIMENTAL
---- a/drivers/misc/Makefile
-+++ b/drivers/misc/Makefile
-@@ -9,6 +9,7 @@ obj-$(CONFIG_AD525X_DPOT_SPI)	+= ad525x_
- obj-$(CONFIG_ATMEL_PWM)		+= atmel_pwm.o
- obj-$(CONFIG_ATMEL_SSC)		+= atmel-ssc.o
- obj-$(CONFIG_ATMEL_TCLIB)	+= atmel_tclib.o
-+obj-$(CONFIG_AT91_ADC)		+= at91-adc.o
- obj-$(CONFIG_BMP085)		+= bmp085.o
- obj-$(CONFIG_ICS932S401)	+= ics932s401.o
- obj-$(CONFIG_LKDTM)		+= lkdtm.o
diff --git a/target/linux/at91/patches/600-usb_vbus_active_high.patch b/target/linux/at91/patches/600-usb_vbus_active_high.patch
deleted file mode 100644
index 08dfcb303..000000000
--- a/target/linux/at91/patches/600-usb_vbus_active_high.patch
+++ /dev/null
@@ -1,84 +0,0 @@
---- a/arch/arm/mach-at91/at91cap9_devices.c
-+++ b/arch/arm/mach-at91/at91cap9_devices.c
-@@ -77,7 +77,7 @@ void __init at91_add_device_usbh(struct
- 	/* Enable VBus control for UHP ports */
- 	for (i = 0; i < data->ports; i++) {
- 		if (data->vbus_pin[i])
--			at91_set_gpio_output(data->vbus_pin[i], 0);
-+			at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high);
- 	}
- 
- 	usbh_data = *data;
---- a/arch/arm/mach-at91/at91sam9263_devices.c
-+++ b/arch/arm/mach-at91/at91sam9263_devices.c
-@@ -71,7 +71,7 @@ void __init at91_add_device_usbh(struct
- 	/* Enable VBus control for UHP ports */
- 	for (i = 0; i < data->ports; i++) {
- 		if (data->vbus_pin[i])
--			at91_set_gpio_output(data->vbus_pin[i], 0);
-+			at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high);
- 	}
- 
- 	usbh_data = *data;
---- a/arch/arm/mach-at91/at91sam9g45_devices.c
-+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
-@@ -121,7 +121,7 @@ void __init at91_add_device_usbh_ohci(st
- 	/* Enable VBus control for UHP ports */
- 	for (i = 0; i < data->ports; i++) {
- 		if (data->vbus_pin[i])
--			at91_set_gpio_output(data->vbus_pin[i], 0);
-+			at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high);
- 	}
- 
- 	usbh_ohci_data = *data;
-@@ -176,7 +176,7 @@ void __init at91_add_device_usbh_ehci(st
- 	/* Enable VBus control for UHP ports */
- 	for (i = 0; i < data->ports; i++) {
- 		if (data->vbus_pin[i])
--			at91_set_gpio_output(data->vbus_pin[i], 0);
-+			at91_set_gpio_output(data->vbus_pin[i], data->vbus_active_high);
- 	}
- 
- 	usbh_ehci_data = *data;
---- a/arch/arm/mach-at91/include/mach/board.h
-+++ b/arch/arm/mach-at91/include/mach/board.h
-@@ -96,8 +96,9 @@ extern void __init at91_add_device_eth(s
- 
-  /* USB Host */
- struct at91_usbh_data {
--	u8		ports;		/* number of ports on root hub */
--	u8		vbus_pin[2];	/* port power-control pin */
-+	u8		ports;			/* number of ports on root hub */
-+	u8		vbus_pin[2];		/* port power-control pin */
-+	u8		vbus_active_high;	/* true == vbus_pins are active high */
- };
- extern void __init at91_add_device_usbh(struct at91_usbh_data *data);
- extern void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data);
---- a/drivers/usb/host/ohci-at91.c
-+++ b/drivers/usb/host/ohci-at91.c
-@@ -277,14 +277,13 @@ static int ohci_hcd_at91_drv_probe(struc
- 	if (pdata) {
- 		/* REVISIT make the driver support per-port power switching,
- 		 * and also overcurrent detection.  Here we assume the ports
--		 * are always powered while this driver is active, and use
--		 * active-low power switches.
-+		 * are always powered while this driver is active.
- 		 */
- 		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
- 			if (pdata->vbus_pin[i] <= 0)
- 				continue;
- 			gpio_request(pdata->vbus_pin[i], "ohci_vbus");
--			gpio_direction_output(pdata->vbus_pin[i], 0);
-+			gpio_direction_output(pdata->vbus_pin[i], pdata->vbus_active_high);
- 		}
- 	}
- 
-@@ -301,7 +300,7 @@ static int ohci_hcd_at91_drv_remove(stru
- 		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
- 			if (pdata->vbus_pin[i] <= 0)
- 				continue;
--			gpio_direction_output(pdata->vbus_pin[i], 1);
-+			gpio_direction_output(pdata->vbus_pin[i], !pdata->vbus_active_high);
- 			gpio_free(pdata->vbus_pin[i]);
- 		}
- 	}