25 files changed, 594 insertions, 139 deletions

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 598edc9a81..3fb09fbec4 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -6,9 +6,9 @@ config ARM_SMP_TWD
 	bool
 	depends on ARM && CPU_V7
 
-config CLOCKSOURCE_BCM2835
+config CLOCKSOURCE_BCM283X
 	bool
-	depends on ARCH_BCM2835
+	depends on ARCH_BCM283X
 
 config CLOCKSOURCE_CLPS711X
 	bool
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index f5f5141a3d..4eb1656ee0 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -1,6 +1,6 @@
 obj-$(CONFIG_AMBA_SP804) += amba-sp804.o
 obj-$(CONFIG_ARM_SMP_TWD) += arm_smp_twd.o
-obj-$(CONFIG_CLOCKSOURCE_BCM2835) += bcm2835.o
+obj-$(CONFIG_CLOCKSOURCE_BCM283X) += bcm2835.o
 obj-$(CONFIG_CLOCKSOURCE_CLPS711X) += clps711x.o
 obj-$(CONFIG_CLOCKSOURCE_DIGIC)   += digic.o
 obj-$(CONFIG_CLOCKSOURCE_MVEBU)   += mvebu.o
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 9cb22613dd..d839d7a426 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -21,9 +21,9 @@ config GPIO_74164
 	  shift registers. This driver can be used to provide access
 	  to more gpio outputs.
 
-config GPIO_BCM2835
-	bool "GPIO support for BCM2835"
-	depends on ARCH_BCM2835
+config GPIO_BCM283X
+	bool "GPIO support for BCM283X"
+	depends on ARCH_BCM283X
 
 config GPIO_CLPS711X
 	bool "GPIO support for CLPS711X"
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index f39e8da6e1..8767eed1e8 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -2,7 +2,7 @@ obj-$(CONFIG_GPIOLIB)		+= gpiolib.o
 
 obj-$(CONFIG_GPIO_74164)	+= gpio-74164.o
 obj-$(CONFIG_MACH_MIPS_ATH79)	+= gpio-ath79.o
-obj-$(CONFIG_GPIO_BCM2835)	+= gpio-bcm2835.o
+obj-$(CONFIG_GPIO_BCM283X)	+= gpio-bcm2835.o
 obj-$(CONFIG_GPIO_DAVINCI)	+= gpio-davinci.o
 obj-$(CONFIG_GPIO_CLPS711X)	+= gpio-clps711x.o
 obj-$(CONFIG_GPIO_DIGIC)	+= gpio-digic.o
diff --git a/drivers/input/gpio_keys.c b/drivers/input/gpio_keys.c
index d017594662..5b03fd76cb 100644
--- a/drivers/input/gpio_keys.c
+++ b/drivers/input/gpio_keys.c
@@ -21,6 +21,9 @@ struct gpio_key {
 	int active_low;
 
 	int previous_state;
+
+	int debounce_interval;
+	u64 debounce_start;
 };
 
 struct gpio_keys {
@@ -60,11 +63,17 @@ static void gpio_key_poller(struct poller_struct *poller)
 		gb = &gk->buttons[i];
 		val = gpio_get_value(gb->gpio);
 
-		if (val != gb->previous_state && val != gb->active_low) {
-			kfifo_put(gk->recv_fifo, (u_char*)&gb->code, sizeof(int));
-			debug("pressed gpio(%d) as %d\n", gb->gpio, gb->code);
+		if (!is_timeout(gb->debounce_start, gb->debounce_interval * MSECOND))
+			continue;
+
+		if (val != gb->previous_state) {
+			gb->debounce_start = get_time_ns();
+			if (val != gb->active_low) {
+				kfifo_put(gk->recv_fifo, (u_char*)&gb->code, sizeof(int));
+				debug("pressed gpio(%d) as %d\n", gb->gpio, gb->code);
+			}
+			gb->previous_state = val;
 		}
-		gb->previous_state = val;
 	}
 }
 
@@ -111,6 +120,7 @@ static int gpio_keys_probe_pdata(struct gpio_keys *gk, struct device_d *dev)
 		gk->buttons[i].gpio = pdata->buttons[i].gpio;
 		gk->buttons[i].code = pdata->buttons[i].code;
 		gk->buttons[i].active_low = pdata->buttons[i].active_low;
+		gk->buttons[i].debounce_interval = 20;
 	}
 
 	return 0;
@@ -142,6 +152,11 @@ static int gpio_keys_probe_dt(struct gpio_keys *gk, struct device_d *dev)
 		if (ret)
 			return ret;
 
+		gk->buttons[i].debounce_interval = 20;
+
+		of_property_read_u32(npkey, "debounce-interval",
+				     &gk->buttons[i].debounce_interval);
+
 		gk->buttons[i].code = keycode;
 
 		i++;
diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig
index ebd8da9591..0f3504c735 100644
--- a/drivers/mci/Kconfig
+++ b/drivers/mci/Kconfig
@@ -62,9 +62,9 @@ config MCI_S3C
 	  Enable this entry to add support to read and write SD cards on a
 	  Samsung S3C24xx based system.
 
-config MCI_BCM2835
-	bool "MCI support for BCM2835"
-	depends on ARCH_BCM2835
+config MCI_BCM283X
+	bool "MCI support for BCM283X"
+	depends on ARCH_BCM283X
 
 config MCI_IMX
 	bool "i.MX"
diff --git a/drivers/mci/Makefile b/drivers/mci/Makefile
index 1e8443c1af..88ec456aa3 100644
--- a/drivers/mci/Makefile
+++ b/drivers/mci/Makefile
@@ -1,6 +1,6 @@
 obj-$(CONFIG_MCI)		+= mci-core.o
 obj-$(CONFIG_MCI_ATMEL)		+= atmel_mci.o
-obj-$(CONFIG_MCI_BCM2835)	+= mci-bcm2835.o
+obj-$(CONFIG_MCI_BCM283X)	+= mci-bcm2835.o
 obj-$(CONFIG_MCI_IMX)		+= imx.o
 obj-$(CONFIG_MCI_IMX_ESDHC)	+= imx-esdhc.o
 obj-$(CONFIG_MCI_MXS)		+= mxs.o
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ca48f59de1..554d3d2f96 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -907,6 +907,134 @@ out:
 EXPORT_SYMBOL(nand_lock);
 
 /**
+ * nand_check_erased_buf - check if a buffer contains (almost) only 0xff data
+ * @buf: buffer to test
+ * @len: buffer length
+ * @bitflips_threshold: maximum number of bitflips
+ *
+ * Check if a buffer contains only 0xff, which means the underlying region
+ * has been erased and is ready to be programmed.
+ * The bitflips_threshold specify the maximum number of bitflips before
+ * considering the region is not erased.
+ * Note: The logic of this function has been extracted from the memweight
+ * implementation, except that nand_check_erased_buf function exit before
+ * testing the whole buffer if the number of bitflips exceed the
+ * bitflips_threshold value.
+ *
+ * Returns a positive number of bitflips less than or equal to
+ * bitflips_threshold, or -ERROR_CODE for bitflips in excess of the
+ * threshold.
+ */
+static int nand_check_erased_buf(void *buf, int len, int bitflips_threshold)
+{
+	const unsigned char *bitmap = buf;
+	int bitflips = 0;
+	int weight;
+
+	for (; len && ((uintptr_t)bitmap) % sizeof(long);
+	     len--, bitmap++) {
+		weight = hweight8(*bitmap);
+		bitflips += BITS_PER_BYTE - weight;
+		if (unlikely(bitflips > bitflips_threshold))
+			return -EBADMSG;
+	}
+
+	for (; len >= sizeof(long);
+	     len -= sizeof(long), bitmap += sizeof(long)) {
+		weight = hweight_long(*((unsigned long *)bitmap));
+		bitflips += BITS_PER_LONG - weight;
+		if (unlikely(bitflips > bitflips_threshold))
+			return -EBADMSG;
+	}
+
+	for (; len > 0; len--, bitmap++) {
+		weight = hweight8(*bitmap);
+		bitflips += BITS_PER_BYTE - weight;
+		if (unlikely(bitflips > bitflips_threshold))
+			return -EBADMSG;
+	}
+
+	return bitflips;
+}
+
+/**
+ * nand_check_erased_ecc_chunk - check if an ECC chunk contains (almost) only
+ *				 0xff data
+ * @data: data buffer to test
+ * @datalen: data length
+ * @ecc: ECC buffer
+ * @ecclen: ECC length
+ * @extraoob: extra OOB buffer
+ * @extraooblen: extra OOB length
+ * @bitflips_threshold: maximum number of bitflips
+ *
+ * Check if a data buffer and its associated ECC and OOB data contains only
+ * 0xff pattern, which means the underlying region has been erased and is
+ * ready to be programmed.
+ * The bitflips_threshold specify the maximum number of bitflips before
+ * considering the region as not erased.
+ *
+ * Note:
+ * 1/ ECC algorithms are working on pre-defined block sizes which are usually
+ *    different from the NAND page size. When fixing bitflips, ECC engines will
+ *    report the number of errors per chunk, and the NAND core infrastructure
+ *    expect you to return the maximum number of bitflips for the whole page.
+ *    This is why you should always use this function on a single chunk and
+ *    not on the whole page. After checking each chunk you should update your
+ *    max_bitflips value accordingly.
+ * 2/ When checking for bitflips in erased pages you should not only check
+ *    the payload data but also their associated ECC data, because a user might
+ *    have programmed almost all bits to 1 but a few. In this case, we
+ *    shouldn't consider the chunk as erased, and checking ECC bytes prevent
+ *    this case.
+ * 3/ The extraoob argument is optional, and should be used if some of your OOB
+ *    data are protected by the ECC engine.
+ *    It could also be used if you support subpages and want to attach some
+ *    extra OOB data to an ECC chunk.
+ *
+ * Returns a positive number of bitflips less than or equal to
+ * bitflips_threshold, or -ERROR_CODE for bitflips in excess of the
+ * threshold. In case of success, the passed buffers are filled with 0xff.
+ */
+int nand_check_erased_ecc_chunk(void *data, int datalen,
+				void *ecc, int ecclen,
+				void *extraoob, int extraooblen,
+				int bitflips_threshold)
+{
+	int data_bitflips = 0, ecc_bitflips = 0, extraoob_bitflips = 0;
+
+	data_bitflips = nand_check_erased_buf(data, datalen,
+					      bitflips_threshold);
+	if (data_bitflips < 0)
+		return data_bitflips;
+
+	bitflips_threshold -= data_bitflips;
+
+	ecc_bitflips = nand_check_erased_buf(ecc, ecclen, bitflips_threshold);
+	if (ecc_bitflips < 0)
+		return ecc_bitflips;
+
+	bitflips_threshold -= ecc_bitflips;
+
+	extraoob_bitflips = nand_check_erased_buf(extraoob, extraooblen,
+						  bitflips_threshold);
+	if (extraoob_bitflips < 0)
+		return extraoob_bitflips;
+
+	if (data_bitflips)
+		memset(data, 0xff, datalen);
+
+	if (ecc_bitflips)
+		memset(ecc, 0xff, ecclen);
+
+	if (extraoob_bitflips)
+		memset(extraoob, 0xff, extraooblen);
+
+	return data_bitflips + ecc_bitflips + extraoob_bitflips;
+}
+EXPORT_SYMBOL(nand_check_erased_ecc_chunk);
+
+/**
  * nand_read_page_raw - [INTERN] read raw page data without ecc
  * @mtd: mtd info structure
  * @chip: nand chip info structure
diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
index b3767e6cbe..7635e2a418 100644
--- a/drivers/mtd/nand/nand_mxs.c
+++ b/drivers/mtd/nand/nand_mxs.c
@@ -737,6 +737,8 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 	/* Read DMA completed, now do the mark swapping. */
 	mxs_nand_swap_block_mark(mtd, nand_info->data_buf, nand_info->oob_buf);
 
+	memcpy(buf, nand_info->data_buf, mtd->writesize);
+
 	/* Loop over status bytes, accumulating ECC status. */
 	status = nand_info->oob_buf + mxs_nand_aux_status_offset();
 	for (i = 0; i < mxs_nand_ecc_chunk_cnt(mtd->writesize); i++) {
@@ -747,6 +749,44 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 			continue;
 
 		if (status[i] == 0xfe) {
+			int flips;
+
+			/*
+			 * The ECC hardware has an uncorrectable ECC status
+			 * code in case we have bitflips in an erased page. As
+			 * nothing was written into this subpage the ECC is
+			 * obviously wrong and we can not trust it. We assume
+			 * at this point that we are reading an erased page and
+			 * try to correct the bitflips in buffer up to
+			 * ecc_strength bitflips. If this is a page with random
+			 * data, we exceed this number of bitflips and have a
+			 * ECC failure. Otherwise we use the corrected buffer.
+			 */
+			if (i == 0) {
+				/* The first block includes metadata */
+				flips = nand_check_erased_ecc_chunk(
+						buf + i * MXS_NAND_CHUNK_DATA_CHUNK_SIZE,
+						MXS_NAND_CHUNK_DATA_CHUNK_SIZE,
+						NULL, 0,
+						nand_info->oob_buf,
+						MXS_NAND_METADATA_SIZE,
+						mtd->ecc_strength);
+			} else {
+				flips = nand_check_erased_ecc_chunk(
+						buf + i * MXS_NAND_CHUNK_DATA_CHUNK_SIZE,
+						MXS_NAND_CHUNK_DATA_CHUNK_SIZE,
+						NULL, 0,
+						NULL, 0,
+						mtd->ecc_strength);
+			}
+
+			if (flips > 0) {
+				max_bitflips = max_t(unsigned int,
+						     max_bitflips, flips);
+				corrected += flips;
+				continue;
+			}
+
 			failed++;
 			continue;
 		}
@@ -772,8 +812,6 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand,
 
 	nand->oob_poi[0] = nand_info->oob_buf[0];
 
-	memcpy(buf, nand_info->data_buf, mtd->writesize);
-
 	ret = 0;
 rtn:
 	mxs_nand_return_dma_descs(nand_info);
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 90475cfbca..d0a62bda91 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -43,3 +43,10 @@ config OF_BAREBOX_DRIVERS
 	  support for this feature. This currently allows to configure the
 	  environment path from devicetree and to partition devices. See
 	  Documentation/devicetree/bindings/barebox/ for more information.
+
+config OF_BAREBOX_ENV_IN_FS
+	depends on OF_BAREBOX_DRIVERS
+	bool "Allow environment to come from file"
+	help
+	  Allow the devie tree configuration of the barebox environment path
+	  to specify a file in filesystem, which will be mounted.
diff --git a/drivers/of/barebox.c b/drivers/of/barebox.c
index 1b3078eb47..125feef2cc 100644
--- a/drivers/of/barebox.c
+++ b/drivers/of/barebox.c
@@ -24,7 +24,46 @@
 #include <malloc.h>
 #include <partition.h>
 #include <envfs.h>
-#include <linux/mtd/mtd.h>
+#include <fs.h>
+
+#define ENV_MNT_DIR "/boot"	/* If env on filesystem, where to mount */
+
+/* If dev describes a file on a fs, mount the fs and change devpath to
+ * point to the file's path.  Otherwise leave devpath alone.  Does
+ * nothing in env in a file support isn't enabled.  */
+static int environment_check_mount(struct device_d *dev, char **devpath)
+{
+	const char *filepath;
+	int ret;
+
+	if (!IS_ENABLED(CONFIG_OF_BAREBOX_ENV_IN_FS))
+		return 0;
+
+	ret = of_property_read_string(dev->device_node, "file-path", &filepath);
+	if (ret == -EINVAL) {
+		/* No file-path so just use device-path */
+		return 0;
+	} else if (ret) {
+		/* file-path property exists, but has error */
+		dev_err(dev, "Problem with file-path property\n");
+		return ret;
+	}
+
+	/* Get device env is on and mount it */
+	mkdir(ENV_MNT_DIR, 0777);
+	ret = mount(*devpath, "fat", ENV_MNT_DIR, NULL);
+	if (ret) {
+		dev_err(dev, "Failed to load environment: mount %s failed (%d)\n",
+			*devpath, ret);
+		return ret;
+	}
+
+	/* Set env to be in a file on the now mounted device */
+	dev_dbg(dev, "Loading default env from %s on device %s\n",
+		filepath, *devpath);
+	*devpath = asprintf("%s/%s", ENV_MNT_DIR, filepath);
+	return 0;
+}
 
 static int environment_probe(struct device_d *dev)
 {
@@ -35,8 +74,12 @@ static int environment_probe(struct device_d *dev)
 	if (ret)
 		return ret;
 
-	dev_info(dev, "setting default environment path to %s\n", path);
+	/* Do we need to mount a fs and find env there? */
+	ret = environment_check_mount(dev, &path);
+	if (ret)
+		return ret;
 
+	dev_dbg(dev, "Setting default environment path to %s\n", path);
 	default_environment_path_set(path);
 
 	return 0;
diff --git a/drivers/of/of_path.c b/drivers/of/of_path.c
index 6903905259..ed620f1755 100644
--- a/drivers/of/of_path.c
+++ b/drivers/of/of_path.c
@@ -23,16 +23,6 @@
 
 #include <linux/mtd/mtd.h>
 
-struct of_path {
-	struct cdev *cdev;
-	struct device_d *dev;
-};
-
-struct of_path_type {
-	const char *name;
-	int (*parse)(struct of_path *op, const char *str);
-};
-
 struct device_d *of_find_device_by_node_path(const char *path)
 {
 	struct device_d *dev;
@@ -48,102 +38,44 @@ struct device_d *of_find_device_by_node_path(const char *path)
 }
 
 /**
- * of_path_type_partname - find a partition based on physical device and
- *                         partition name
- * @op: of_path context
- * @name: the partition name to find
+ * __of_find_path
+ *
+ * @node: The node to find the cdev for, can be the device or a
+ *        partition in the device
+ * @part: Optionally, a description of a parition of @node.  See of_find_path
+ * @outpath: if this function returns 0 outpath will contain the path belonging
+ *           to the input path description. Must be freed with free().
+ * @flags: use OF_FIND_PATH_FLAGS_BB to return the .bb device if available
+ *
  */
-static int of_path_type_partname(struct of_path *op, const char *name)
-{
-	if (!op->dev)
-		return -EINVAL;
-
-	op->cdev = device_find_partition(op->dev, name);
-	if (op->cdev) {
-		pr_debug("%s: found part '%s'\n", __func__, name);
-		return 0;
-	} else {
-		pr_debug("%s: cannot find part '%s'\n", __func__, name);
-		return -ENODEV;
-	}
-}
-
-static struct of_path_type of_path_types[] = {
-	{
-		.name = "partname",
-		.parse = of_path_type_partname,
-	},
-};
-
-static int of_path_parse_one(struct of_path *op, const char *str)
+static int __of_find_path(struct device_node *node, const char *part, char **outpath, unsigned flags)
 {
-	int i, ret;
-	char *name, *desc;
-
-	pr_debug("parsing: %s\n", str);
-
-	name = xstrdup(str);
-	desc = strchr(name, ':');
-	if (!desc) {
-		free(name);
-		return -EINVAL;
-	}
-
-	*desc = 0;
-	desc++;
-
-	for (i = 0; i < ARRAY_SIZE(of_path_types); i++) {
-		if (!strcmp(of_path_types[i].name, name)) {
-			ret = of_path_types[i].parse(op, desc);
-			goto out;
-		}
-	}
-
-	ret = -EINVAL;
-out:
-	free(name);
-
-	return ret;
-}
-
-static int __of_find_path(struct device_node *node, const char *propname, char **outpath, unsigned flags)
-{
-	struct of_path op = {};
-	const char *str;
+	struct device_d *dev;
+	struct cdev *cdev;
 	bool add_bb = false;
-	int i, ret;
 
-	op.dev = of_find_device_by_node_path(node->full_name);
-	if (!op.dev) {
-		op.dev = of_find_device_by_node_path(node->parent->full_name);
-		if (!op.dev)
+	dev = of_find_device_by_node_path(node->full_name);
+	if (!dev) {
+		dev = of_find_device_by_node_path(node->parent->full_name);
+		if (!dev)
 			return -ENODEV;
 	}
 
-	device_detect(op.dev);
-
-	op.cdev = cdev_by_device_node(node);
+	device_detect(dev);
 
-	i = 1;
+	if (part)
+		cdev = device_find_partition(dev, part);
+	else
+		cdev = cdev_by_device_node(node);
 
-	while (propname) {
-		ret = of_property_read_string_index(node, propname, i++, &str);
-		if (ret)
-			break;
-
-		ret = of_path_parse_one(&op, str);
-		if (ret)
-			return ret;
-	}
-
-	if (!op.cdev)
+	if (!cdev)
 		return -ENOENT;
 
-	if ((flags & OF_FIND_PATH_FLAGS_BB) && op.cdev->mtd &&
-	    mtd_can_have_bb(op.cdev->mtd))
+	if ((flags & OF_FIND_PATH_FLAGS_BB) && cdev->mtd &&
+	    mtd_can_have_bb(cdev->mtd))
 		add_bb = true;
 
-	*outpath = asprintf("/dev/%s%s", op.cdev->name, add_bb ? ".bb" : "");
+	*outpath = asprintf("/dev/%s%s", cdev->name, add_bb ? ".bb" : "");
 
 	return 0;
 }
@@ -193,6 +125,8 @@ int of_find_path(struct device_node *node, const char *propname, char **outpath,
 {
 	struct device_node *rnode;
 	const char *path;
+	const char *part = NULL;
+	const char partnamestr[] = "partname:";
 
 	path = of_get_property(node, propname, NULL);
 	if (!path)
@@ -202,5 +136,15 @@ int of_find_path(struct device_node *node, const char *propname, char **outpath,
 	if (!rnode)
 		return -ENODEV;
 
-	return __of_find_path(rnode, propname, outpath, flags);
+	of_property_read_string_index(node, propname, 1, &part);
+	if (part) {
+		if (!strncmp(part, partnamestr, sizeof(partnamestr) - 1)) {
+			part += sizeof(partnamestr) - 1;
+		} else {
+			pr_err("Invalid device-path: %s\n", part);
+			return -EINVAL;
+		}
+	}
+
+	return __of_find_path(rnode, part, outpath, flags);
 }
diff --git a/drivers/pci/pci-imx6.c b/drivers/pci/pci-imx6.c
index eaa5f0ef58..d32bd2b4ce 100644
--- a/drivers/pci/pci-imx6.c
+++ b/drivers/pci/pci-imx6.c
@@ -13,6 +13,7 @@
 
 #include <common.h>
 #include <clock.h>
+#include <abort.h>
 #include <malloc.h>
 #include <io.h>
 #include <init.h>
@@ -51,6 +52,8 @@ struct imx6_pcie {
 #define PCIE_RC_LCR_MAX_LINK_SPEEDS_GEN2	0x2
 #define PCIE_RC_LCR_MAX_LINK_SPEEDS_MASK	0xf
 
+#define PCIE_RC_LCSR				0x80
+
 /* PCIe Port Logic registers (memory-mapped) */
 #define PL_OFFSET 0x700
 #define PCIE_PL_PFLR (PL_OFFSET + 0x08)
@@ -235,7 +238,10 @@ static int imx6_pcie_assert_core_reset(struct pcie_port *pp)
 		val = readl(pp->dbi_base + PCIE_PL_PFLR);
 		val &= ~PCIE_PL_PFLR_LINK_STATE_MASK;
 		val |= PCIE_PL_PFLR_FORCE_LINK;
+
+		data_abort_mask();
 		writel(val, pp->dbi_base + PCIE_PL_PFLR);
+		data_abort_unmask();
 
 		gpr12 &= ~IMX6Q_GPR12_PCIE_CTL_2;
 		writel(gpr12, imx6_pcie->iomuxc_gpr + IOMUXC_GPR12);
@@ -360,13 +366,29 @@ static int imx6_pcie_wait_for_link(struct pcie_port *pp)
 	}
 }
 
+static int imx6_pcie_wait_for_speed_change(struct pcie_port *pp)
+{
+	uint32_t tmp;
+	uint64_t start = get_time_ns();
+
+	while (!is_timeout(start, SECOND)) {
+		tmp = readl(pp->dbi_base + PCIE_LINK_WIDTH_SPEED_CONTROL);
+		/* Test if the speed change finished. */
+		if (!(tmp & PORT_LOGIC_SPEED_CHANGE))
+			return 0;
+	}
+
+	dev_err(pp->dev, "Speed change timeout\n");
+	return -EINVAL;
+}
+
+
 static int imx6_pcie_start_link(struct pcie_port *pp)
 {
 	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
 	uint32_t tmp;
 	int ret;
 	u32 gpr12;
-	u64 start;
 
 	/*
 	 * Force Gen1 operation when starting the link.  In case the link is
@@ -401,28 +423,22 @@ static int imx6_pcie_start_link(struct pcie_port *pp)
 	tmp |= PORT_LOGIC_SPEED_CHANGE;
 	writel(tmp, pp->dbi_base + PCIE_LINK_WIDTH_SPEED_CONTROL);
 
-	start = get_time_ns();
-	while (!is_timeout(start, SECOND)) {
-		tmp = readl(pp->dbi_base + PCIE_LINK_WIDTH_SPEED_CONTROL);
-		/* Test if the speed change finished. */
-		if (!(tmp & PORT_LOGIC_SPEED_CHANGE))
-			break;
+	ret = imx6_pcie_wait_for_speed_change(pp);
+	if (ret) {
+		dev_err(pp->dev, "Failed to bring link up!\n");
+		return ret;
 	}
 
 	/* Make sure link training is finished as well! */
-	if (tmp & PORT_LOGIC_SPEED_CHANGE)
-		ret = -EINVAL;
-	else
-		ret = imx6_pcie_wait_for_link(pp);
-
+	ret = imx6_pcie_wait_for_link(pp);
 	if (ret) {
 		dev_err(pp->dev, "Failed to bring link up!\n");
-	} else {
-		tmp = readl(pp->dbi_base + 0x80);
-		dev_dbg(pp->dev, "Link up, Gen=%i\n", (tmp >> 16) & 0xf);
+		return ret;
 	}
 
-	return ret;
+	tmp = readl(pp->dbi_base + PCIE_RC_LCSR);
+	dev_dbg(pp->dev, "Link up, Gen=%i\n", (tmp >> 16) & 0xf);
+	return 0;
 }
 
 static void imx6_pcie_host_init(struct pcie_port *pp)
@@ -592,9 +608,35 @@ static int __init imx6_pcie_probe(struct device_d *dev)
 	if (ret < 0)
 		return ret;
 
+	dev->priv = imx6_pcie;
+
 	return 0;
 }
 
+static void imx6_pcie_remove(struct device_d *dev)
+{
+	struct imx6_pcie *imx6_pcie = dev->priv;
+	u32 val;
+
+	val = readl(imx6_pcie->pp.dbi_base + PCIE_PL_PFLR);
+	val &= ~PCIE_PL_PFLR_LINK_STATE_MASK;
+	val |= PCIE_PL_PFLR_FORCE_LINK;
+	data_abort_mask();
+	writel(val, imx6_pcie->pp.dbi_base + PCIE_PL_PFLR);
+	data_abort_unmask();
+
+	val = readl(imx6_pcie->iomuxc_gpr + IOMUXC_GPR12);
+	val &= ~IMX6Q_GPR12_PCIE_CTL_2;
+	writel(val, imx6_pcie->iomuxc_gpr + IOMUXC_GPR12);
+
+	val = readl(imx6_pcie->iomuxc_gpr + IOMUXC_GPR1);
+	val |= IMX6Q_GPR1_PCIE_TEST_PD;
+	writel(val, imx6_pcie->iomuxc_gpr + IOMUXC_GPR1);
+
+	val &= ~IMX6Q_GPR1_PCIE_REF_CLK_EN;
+	writel(val, imx6_pcie->iomuxc_gpr + IOMUXC_GPR1);
+}
+
 static struct of_device_id imx6_pcie_of_match[] = {
 	{ .compatible = "fsl,imx6q-pcie", },
 	{},
@@ -604,6 +646,7 @@ static struct driver_d imx6_pcie_driver = {
 	.name = "imx6-pcie",
 	.of_compatible = DRV_OF_COMPAT(imx6_pcie_of_match),
 	.probe = imx6_pcie_probe,
+	.remove = imx6_pcie_remove,
 };
 device_platform_driver(imx6_pcie_driver);
 
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 05c3f48980..4b4125254f 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -11,9 +11,9 @@ config REGULATOR_FIXED
 	  This enables a simple fixed regulator. It is used for regulators
 	  which are not software controllable or controllable via gpio.
 
-config REGULATOR_BCM2835
+config REGULATOR_BCM283X
 	bool
-	depends on ARCH_BCM2835
+	depends on ARCH_BCM283X
 	default y
 
 endif
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index d663c16b1a..a8dd9bd055 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -1,3 +1,3 @@
 obj-$(CONFIG_REGULATOR) += core.o
 obj-$(CONFIG_REGULATOR_FIXED) += fixed.o
-obj-$(CONFIG_REGULATOR_BCM2835) += bcm2835.o
+obj-$(CONFIG_REGULATOR_BCM283X) += bcm2835.o
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 0f900a92d0..59f75ca475 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -190,6 +190,7 @@ struct reset_control *of_reset_control_get(struct device_node *node,
 
 	rstc->rcdev = rcdev;
 	rstc->id = rstc_id;
+	rstc->gpio = -ENODEV;
 
 	return rstc;
 }
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 191ad97fb8..7d181949ee 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -33,6 +33,9 @@ config RTC_DRV_DS1307
 	  registers may add features such as NVRAM, a trickle charger for
 	  the RTC/NVRAM backup power, and alarms.
 
+config RTC_DRV_ABRACON
+	tristate "Abracon RTCs"
+
 endif # I2C
 
 config RTC_DRV_JZ4740
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 1cc9bb8b4b..68741c26a1 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -7,5 +7,6 @@ obj-$(CONFIG_RTC_CLASS)         += class.o
 
 # Keep the list ordered.
 
+obj-$(CONFIG_RTC_DRV_ABRACON)   += rtc-abracon.o
 obj-$(CONFIG_RTC_DRV_DS1307)    += rtc-ds1307.o
 obj-$(CONFIG_RTC_DRV_JZ4740)	+= rtc-jz4740.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 356707be2f..8b047a638d 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -46,7 +46,16 @@ EXPORT_SYMBOL(rtc_read_time);
 
 int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
 {
-	return rtc->ops->set_time(rtc, tm);
+	struct rtc_time time;
+	unsigned long secs;
+
+	if (rtc_valid_tm(tm))
+		return -EINVAL;
+
+	rtc_tm_to_time(tm, &secs);
+	rtc_time_to_tm(secs, &time);
+
+	return rtc->ops->set_time(rtc, &time);
 }
 EXPORT_SYMBOL(rtc_set_time);
 
diff --git a/drivers/rtc/rtc-abracon.c b/drivers/rtc/rtc-abracon.c
new file mode 100644
index 0000000000..b3af990b9c
--- /dev/null
+++ b/drivers/rtc/rtc-abracon.c
@@ -0,0 +1,126 @@
+/*
+ * 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; version 2.
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <init.h>
+#include <driver.h>
+#include <xfuncs.h>
+#include <errno.h>
+#include <i2c/i2c.h>
+#include <rtc.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+
+struct abracon {
+	struct rtc_device	rtc;
+	struct i2c_client	*client;
+};
+
+static inline struct abracon *to_abracon_priv(struct rtc_device *rtcdev)
+{
+	return container_of(rtcdev, struct abracon, rtc);
+}
+
+static int abracon_get_time(struct rtc_device *rtcdev, struct rtc_time *t)
+{
+	struct abracon *abracon = to_abracon_priv(rtcdev);
+	struct i2c_client *client = abracon->client;
+	u8 cp[7] = {};
+	u8 reg = 8;
+	struct i2c_msg msg[2] = {};
+	int ret;
+
+	msg[0].addr = client->addr;
+	msg[0].buf = &reg;
+	msg[0].len = 1;
+
+	msg[1].addr = client->addr;
+	msg[1].flags = I2C_M_RD;
+	msg[1].buf = cp;
+	msg[1].len = 7;
+
+	ret = i2c_transfer(client->adapter, msg, 2);
+	if (ret != 2)
+		return -EIO;
+
+	t->tm_sec = bcd2bin(cp[0]);
+	t->tm_min = bcd2bin(cp[1]);
+	t->tm_hour = bcd2bin(cp[2]);
+	t->tm_mday = bcd2bin(cp[3]);
+	t->tm_wday = bcd2bin(cp[4]);
+	t->tm_mon = bcd2bin(cp[5]);
+	t->tm_year = bcd2bin(cp[6]) + 100;
+
+	return 0;
+}
+
+static int abracon_set_time(struct rtc_device *rtcdev, struct rtc_time *t)
+{
+	struct abracon *abracon = to_abracon_priv(rtcdev);
+	struct i2c_client *client = abracon->client;
+	u8 cp[8] = {};
+	int ret;
+
+	cp[0] = 8;
+	cp[1] = bin2bcd(t->tm_sec);
+	cp[2] = bin2bcd(t->tm_min);
+	cp[3] = bin2bcd(t->tm_hour);
+	cp[4] = bin2bcd(t->tm_mday);
+	cp[5] = bin2bcd(t->tm_wday);
+	cp[6] = bin2bcd(t->tm_mon);
+	cp[7] = bin2bcd(t->tm_year - 100);
+
+	ret = i2c_master_send(client, cp, 8);
+	if (ret != 8)
+		return -EIO;
+
+	return 0;
+}
+
+static const struct rtc_class_ops ds13xx_rtc_ops = {
+	.read_time	= abracon_get_time,
+	.set_time	= abracon_set_time,
+};
+
+static int abracon_probe(struct device_d *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct abracon *abracon;
+	int ret;
+
+	abracon = xzalloc(sizeof(*abracon));
+
+	abracon->client = client;
+
+	abracon->rtc.ops = &ds13xx_rtc_ops;
+	abracon->rtc.dev = dev;
+
+	ret = rtc_register(&abracon->rtc);
+
+	return ret;
+};
+
+static struct platform_device_id abracon_id[] = {
+	{ "ab-rtcmc-32.768khz-eoz9-s3", 0 },
+	{ }
+};
+
+static struct driver_d abracon_driver = {
+	.name	= "rtc-abracon",
+	.probe		= abracon_probe,
+	.id_table	= abracon_id,
+};
+
+static int __init abracon_init(void)
+{
+	return i2c_driver_register(&abracon_driver);
+}
+device_initcall(abracon_init);
\ No newline at end of file
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index d78faa892d..e2d561b96f 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -17,6 +17,7 @@
 #include <init.h>
 #include <driver.h>
 #include <xfuncs.h>
+#include <malloc.h>
 #include <errno.h>
 #include <i2c/i2c.h>
 #include <rtc.h>
@@ -31,7 +32,9 @@
  */
 enum ds_type {
 	ds_1307,
+	ds_1337,
 	ds_1338,
+	ds_1341,
 	last_ds_type /* always last */
 };
 
@@ -62,6 +65,28 @@ enum ds_type {
 #	define DS1307_BIT_SQWE		0x10
 #	define DS1307_BIT_RS1		0x02
 #	define DS1307_BIT_RS0		0x01
+#define DS1337_REG_CONTROL	0x0e
+#	define DS1337_BIT_nEOSC		0x80
+#	define DS1339_BIT_BBSQI		0x20
+#	define DS3231_BIT_BBSQW		0x40 /* same as BBSQI */
+#	define DS1337_BIT_RS2		0x10
+#	define DS1337_BIT_RS1		0x08
+#	define DS1337_BIT_INTCN		0x04
+#	define DS1337_BIT_A2IE		0x02
+#	define DS1337_BIT_A1IE		0x01
+#define DS1340_REG_CONTROL	0x07
+#	define DS1340_BIT_OUT		0x80
+#	define DS1340_BIT_FT		0x40
+#	define DS1340_BIT_CALIB_SIGN	0x20
+#	define DS1340_M_CALIBRATION	0x1f
+#define DS1340_REG_FLAG		0x09
+#	define DS1340_BIT_OSF		0x80
+#define DS1337_REG_STATUS	0x0f
+#	define DS1337_BIT_OSF		0x80
+#	define DS1341_BIT_ECLK		0x04
+#	define DS1337_BIT_A2I		0x02
+#	define DS1337_BIT_A1I		0x01
+
 
 struct ds1307 {
 	struct rtc_device	rtc;
@@ -78,7 +103,9 @@ struct ds1307 {
 
 static struct platform_device_id ds1307_id[] = {
 	{ "ds1307", ds_1307 },
+	{ "ds1337", ds_1337 },
 	{ "ds1338", ds_1338 },
+	{ "ds1341", ds_1341 },
 	{ "pt7c4338", ds_1307 },
 	{ }
 };
@@ -224,6 +251,16 @@ static int ds1307_set_time(struct rtc_device *rtcdev, struct rtc_time *t)
 	tmp = t->tm_year - 100;
 	buf[DS1307_REG_YEAR] = bin2bcd(tmp);
 
+	switch (ds1307->type) {
+	case ds_1337:
+	case ds_1341:
+		buf[DS1307_REG_MONTH] |= DS1337_BIT_CENTURY;
+		break;
+	default:
+		break;
+	}
+
+
 	dev_dbg(dev, "%s: %7ph\n", "write", buf);
 
 	result = ds1307->write_block_data(ds1307->client,
@@ -263,6 +300,61 @@ static int ds1307_probe(struct device_d *dev)
 	ds1307->read_block_data = ds1307_read_block_data;
 	ds1307->write_block_data = ds1307_write_block_data;
 
+
+	switch (ds1307->type) {
+	case ds_1337:
+	case ds_1341:
+		/* get registers that the "rtc" read below won't read... */
+		tmp = ds1307->read_block_data(ds1307->client,
+					      DS1337_REG_CONTROL, 2, buf);
+
+		if (tmp != 2) {
+			dev_dbg(&client->dev, "read error %d\n", tmp);
+			err = -EIO;
+			goto exit;
+		}
+
+		/* oscillator off?  turn it on, so clock can tick. */
+		if (ds1307->regs[0] & DS1337_BIT_nEOSC)
+			ds1307->regs[0] &= ~DS1337_BIT_nEOSC;
+
+
+		/*
+		  Make sure no alarm interrupts or square wave signals
+		  are produced by the chip while we are in
+		  bootloader. We do this by configuring the RTC to
+		  generate alarm interrupts (thus disabling square
+		  wave generation), but disabling each individual
+		  alarm interrupt source
+		 */
+		ds1307->regs[0] |= DS1337_BIT_INTCN;
+		ds1307->regs[0] &= ~(DS1337_BIT_A2IE | DS1337_BIT_A1IE);
+
+		i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL,
+					  ds1307->regs[0]);
+
+		/*
+		  For the above to be true, DS1341 also has to have
+		  ECLK bit set to 0
+		 */
+		if (ds1307->type == ds_1341) {
+			ds1307->regs[1] &= DS1341_BIT_ECLK;
+			i2c_smbus_write_byte_data(client, DS1337_REG_STATUS,
+						  ds1307->regs[1]);
+		}
+
+
+		/* oscillator fault?  clear flag, and warn */
+		if (ds1307->regs[1] & DS1337_BIT_OSF) {
+			i2c_smbus_write_byte_data(client, DS1337_REG_STATUS,
+				ds1307->regs[1] & ~DS1337_BIT_OSF);
+			dev_warn(&client->dev, "SET TIME!\n");
+		}
+
+	default:
+		break;
+	}
+
 read_rtc:
 	/* read RTC registers */
 	tmp = ds1307->read_block_data(client, ds1307->offset, 8, buf);
@@ -331,6 +423,8 @@ read_rtc:
 	err = rtc_register(&ds1307->rtc);
 
 exit:
+	if (err)
+		free(ds1307);
 	return err;
 }
 
diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c
index 1b23458a57..83d80455da 100644
--- a/drivers/rtc/rtc-lib.c
+++ b/drivers/rtc/rtc-lib.c
@@ -90,6 +90,8 @@ int rtc_valid_tm(struct rtc_time *tm)
 {
 	if (tm->tm_year < 70
 		|| ((unsigned)tm->tm_mon) >= 12
+		|| tm->tm_wday < 0
+		|| tm->tm_wday > 6
 		|| tm->tm_mday < 1
 		|| tm->tm_mday > rtc_month_days(tm->tm_mon, tm->tm_year + 1900)
 		|| ((unsigned)tm->tm_hour) >= 24
diff --git a/drivers/usb/imx/chipidea-imx.c b/drivers/usb/imx/chipidea-imx.c
index ae307183bc..a1c36cf644 100644
--- a/drivers/usb/imx/chipidea-imx.c
+++ b/drivers/usb/imx/chipidea-imx.c
@@ -242,7 +242,8 @@ static int imx_chipidea_probe(struct device_d *dev)
 
 	ci->vbus = regulator_get(dev, "vbus");
 
-	regulator_enable(ci->vbus);
+	if (!IS_ERR(ci->vbus))
+		regulator_enable(ci->vbus);
 
 	base = dev_request_mem_region(dev, 0);
 	if (IS_ERR(base))
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index eabd246d53..7ff67e525e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -82,11 +82,11 @@ config DRIVER_VIDEO_PXA
 	  Add support for the frame buffer device found on the PXA270
 	  CPU.
 
-config DRIVER_VIDEO_BCM2835
-	bool "BCM2835 framebuffer driver"
-	depends on ARCH_BCM2835
+config DRIVER_VIDEO_BCM283X
+	bool "BCM283X framebuffer driver"
+	depends on ARCH_BCM283X
 	help
-	  Add support for the BCM2835/VideoCore frame buffer device.
+	  Add support for the BCM283X/VideoCore frame buffer device.
 
 source drivers/video/imx-ipu-v3/Kconfig
 
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 57e4864a6d..a64fc5f24d 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -17,6 +17,6 @@ obj-$(CONFIG_DRIVER_VIDEO_S3C24XX) += s3c24xx.o
 obj-$(CONFIG_DRIVER_VIDEO_PXA) += pxa.o
 obj-$(CONFIG_DRIVER_VIDEO_SDL) += sdl.o
 obj-$(CONFIG_DRIVER_VIDEO_OMAP) += omap.o
-obj-$(CONFIG_DRIVER_VIDEO_BCM2835) += bcm2835.o
+obj-$(CONFIG_DRIVER_VIDEO_BCM283X) += bcm2835.o
 obj-$(CONFIG_DRIVER_VIDEO_SIMPLEFB) += simplefb.o
 obj-$(CONFIG_DRIVER_VIDEO_IMX_IPUV3) += imx-ipu-v3/