Merge branch 'u-boot/master' into 'u-boot-arm/master'

Conflicts:
	drivers/video/exynos_fb.c

7 files changed, 155 insertions, 43 deletions

diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index 60dbb78..cf10b0d 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -210,9 +210,11 @@ unsigned long flash_sector_size(flash_info_t *info, flash_sect_t sect)
 static inline void *
 flash_map (flash_info_t * info, flash_sect_t sect, uint offset)
 {
-	unsigned int byte_offset = offset * info->portwidth;
+	unsigned int byte_offset = offset * info->portwidth / info->chipwidth;
+	unsigned int addr = (info->start[sect] + byte_offset);
+	unsigned int mask = 0xffffffff << (info->portwidth - 1);
 
-	return (void *)(info->start[sect] + byte_offset);
+	return (void *)(uintptr_t)(addr & mask);
 }
 
 static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
@@ -398,6 +400,8 @@ void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
 #endif
 		flash_write64(cword.ll, addr);
 		break;
+	default:
+		printf("fwc: Unknown port width %d\n", info->portwidth);
 	}
 
 	/* Ensure all the instructions are fully finished */
@@ -585,7 +589,6 @@ static int flash_status_check (flash_info_t * info, flash_sect_t sector,
 				prompt, info->start[sector],
 				flash_read_long (info, sector, 0));
 			flash_write_cmd (info, sector, 0, info->cmd_reset);
-			udelay(1);
 			return ERR_TIMOUT;
 		}
 		udelay (1);		/* also triggers watchdog */
@@ -753,12 +756,8 @@ static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
 static flash_sect_t find_sector (flash_info_t * info, ulong addr)
 {
 	static flash_sect_t saved_sector; /* previously found sector */
-	static flash_info_t *saved_info; /* previously used flash bank */
 	flash_sect_t sector = saved_sector;
 
-	if ((info != saved_info) || (sector >= info->sector_count))
-		sector = 0;
-
 	while ((info->start[sector] < addr)
 			&& (sector < info->sector_count - 1))
 		sector++;
@@ -770,7 +769,6 @@ static flash_sect_t find_sector (flash_info_t * info, ulong addr)
 		sector--;
 
 	saved_sector = sector;
-	saved_info = info;
 	return sector;
 }
 
@@ -787,12 +785,15 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest,
 	/* Check if Flash is (sufficiently) erased */
 	switch (info->portwidth) {
 	case FLASH_CFI_8BIT:
+		debug("%s: 8-bit 0x%02x\n", __func__, cword.c);
 		flag = ((flash_read8(dstaddr) & cword.c) == cword.c);
 		break;
 	case FLASH_CFI_16BIT:
+		debug("%s: 16-bit 0x%04x\n", __func__, cword.w);
 		flag = ((flash_read16(dstaddr) & cword.w) == cword.w);
 		break;
 	case FLASH_CFI_32BIT:
+		debug("%s: 32-bit 0x%08lx\n", __func__, cword.l);
 		flag = ((flash_read32(dstaddr) & cword.l) == cword.l);
 		break;
 	case FLASH_CFI_64BIT:
@@ -1053,6 +1054,8 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
 	flash_sect_t sect;
 	int st;
 
+	debug("%s: erasing sectors %d to %d\n", __func__, s_first, s_last);
+
 	if (info->flash_id != FLASH_MAN_CFI) {
 		puts ("Can't erase unknown flash type - aborted\n");
 		return 1;
@@ -1162,6 +1165,9 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
 				rcode = 1;
 			else if (flash_verbose)
 				putc ('.');
+		} else {
+			debug("\nSector %d is protected.\n",
+						info->protect[sect]);
 		}
 	}
 
@@ -1857,7 +1863,7 @@ static void flash_read_cfi (flash_info_t *info, void *buf,
 	unsigned int i;
 
 	for (i = 0; i < len; i++)
-		p[i] = flash_read_uchar(info, start + i);
+		p[i] = flash_read_uchar(info, start + (i * 2));
 }
 
 static void __flash_cmd_reset(flash_info_t *info)
@@ -1878,21 +1884,40 @@ static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
 {
 	int cfi_offset;
 
-	/* Issue FLASH reset command */
-	flash_cmd_reset(info);
-
 	for (cfi_offset=0;
 	     cfi_offset < sizeof(flash_offset_cfi) / sizeof(uint);
 	     cfi_offset++) {
+		/* Issue FLASH reset command */
+		flash_cmd_reset(info);
 		flash_write_cmd (info, 0, flash_offset_cfi[cfi_offset],
 				 FLASH_CMD_CFI);
-		if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
-		    && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R')
-		    && flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
+		if (flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP, 'Q') &&
+			flash_isequal(info, 0,
+					FLASH_OFFSET_CFI_RESP + 2, 'R') &&
+			flash_isequal(info, 0,
+					FLASH_OFFSET_CFI_RESP + 4, 'Y')) {
 			flash_read_cfi(info, qry, FLASH_OFFSET_CFI_RESP,
 					sizeof(struct cfi_qry));
+#ifdef CONFIG_SYS_FLASH_INTERFACE_WIDTH
+			info->interface = CONFIG_SYS_FLASH_INTERFACE_WIDTH;
+#else
 			info->interface	= le16_to_cpu(qry->interface_desc);
-
+			/* Some flash chips can support multiple bus widths.
+			 * In this case, override the interface width and
+			 * limit it to the port width.
+			 */
+			if ((info->interface == FLASH_CFI_X8X16) &&
+				(info->portwidth == FLASH_CFI_8BIT)) {
+					debug("Overriding 16-bit interface"
+						" width to 8-bit port width.\n");
+				info->interface = FLASH_CFI_X8;
+			} else if ((info->interface == FLASH_CFI_X16X32) &&
+				(info->portwidth == FLASH_CFI_16BIT)) {
+					debug("Overriding 16-bit interface"
+						" width to 16-bit port width.\n");
+				info->interface = FLASH_CFI_X16;
+			}
+#endif
 			info->cfi_offset = flash_offset_cfi[cfi_offset];
 			debug ("device interface is %d\n",
 			       info->interface);
@@ -1903,8 +1928,8 @@ static int __flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
 			       info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
 
 			/* calculate command offsets as in the Linux driver */
-			info->addr_unlock1 = 0x555;
-			info->addr_unlock2 = 0x2aa;
+			info->addr_unlock1 = 0xaaa;
+			info->addr_unlock2 = 0x555;
 
 			/*
 			 * modify the unlock address if we are
@@ -1938,8 +1963,12 @@ static int flash_detect_cfi (flash_info_t * info, struct cfi_qry *qry)
 		for (info->chipwidth = FLASH_CFI_BY8;
 		     info->chipwidth <= info->portwidth;
 		     info->chipwidth <<= 1)
-			if (__flash_detect_cfi(info, qry))
+			if (__flash_detect_cfi(info, qry)) {
+				debug("Found CFI flash, portwidth %d,"
+					" chipwidth %d\n",
+					info->portwidth, info->chipwidth);
 				return 1;
+			}
 	}
 	debug ("not found\n");
 	return 0;
@@ -1958,7 +1987,7 @@ static void flash_fixup_amd(flash_info_t *info, struct cfi_qry *qry)
 			/* CFI < 1.1, try to guess from device id */
 			if ((info->device_id & 0x80) != 0)
 				cfi_reverse_geometry(qry);
-		} else if (flash_read_uchar(info, info->ext_addr + 0xf) == 3) {
+		} else if (flash_read_uchar(info, info->ext_addr + 0x1e) == 3) {
 			/* CFI >= 1.1, deduct from top/bottom flag */
 			/* note: ext_addr is valid since cfi_version > 0 */
 			cfi_reverse_geometry(qry);
@@ -2024,6 +2053,26 @@ static void flash_fixup_sst(flash_info_t *info, struct cfi_qry *qry)
 	}
 }
 
+static void flash_fixup_num(flash_info_t *info, struct cfi_qry *qry)
+{
+	/*
+	 * The M29EW devices seem to report the CFI information wrong
+	 * when it's in 8 bit mode.
+	 * There's an app note from Numonyx on this issue.
+	 * So adjust the buffer size for M29EW while operating in 8-bit mode
+	 */
+	if (((qry->max_buf_write_size) > 0x8) &&
+			(info->device_id == 0x7E) &&
+			(info->device_id2 == 0x2201 ||
+			info->device_id2 == 0x2301 ||
+			info->device_id2 == 0x2801 ||
+			info->device_id2 == 0x4801)) {
+		debug("Adjusted buffer size on Numonyx flash"
+			" M29EW family in 8 bit mode\n");
+		qry->max_buf_write_size = 0x8;
+	}
+}
+
 /*
  * The following code cannot be run from FLASH!
  *
@@ -2054,14 +2103,15 @@ ulong flash_get_size (phys_addr_t base, int banknum)
 
 	if (flash_detect_cfi (info, &qry)) {
 		info->vendor = le16_to_cpu(qry.p_id);
-		info->ext_addr = le16_to_cpu(qry.p_adr);
+		info->ext_addr = le16_to_cpu(qry.p_adr) * 2;
+		debug("extended address is 0x%x\n", info->ext_addr);
 		num_erase_regions = qry.num_erase_regions;
 
 		if (info->ext_addr) {
 			info->cfi_version = (ushort) flash_read_uchar (info,
-						info->ext_addr + 3) << 8;
+						info->ext_addr + 6) << 8;
 			info->cfi_version |= (ushort) flash_read_uchar (info,
-						info->ext_addr + 4);
+						info->ext_addr + 8);
 		}
 
 #ifdef DEBUG
@@ -2105,6 +2155,9 @@ ulong flash_get_size (phys_addr_t base, int banknum)
 		case 0x00bf: /* SST */
 			flash_fixup_sst(info, &qry);
 			break;
+		case 0x0089: /* Numonyx */
+			flash_fixup_num(info, &qry);
+			break;
 		}
 
 		debug ("manufacturer is %d\n", info->vendor);
@@ -2112,6 +2165,8 @@ ulong flash_get_size (phys_addr_t base, int banknum)
 		debug ("device id is 0x%x\n", info->device_id);
 		debug ("device id2 is 0x%x\n", info->device_id2);
 		debug ("cfi version is 0x%04x\n", info->cfi_version);
+		debug("port width: %d, chipwidth: %d, interface: %d\n",
+			info->portwidth, info->chipwidth, info->interface);
 
 		size_ratio = info->portwidth / info->chipwidth;
 		/* if the chip is x8/x16 reduce the ratio by half */
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 96dcda2..cbfc679 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -347,16 +347,18 @@ static struct mtd_part *add_one_partition(struct mtd_info *master,
 		if (mtd_mod_by_eb(cur_offset, master) != 0) {
 			/* Round up to next erasesize */
 			slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize;
-			printk(KERN_NOTICE "Moving partition %d: "
-			       "0x%012llx -> 0x%012llx\n", partno,
-			       (unsigned long long)cur_offset, (unsigned long long)slave->offset);
+			debug("Moving partition %d: 0x%012llx -> 0x%012llx\n",
+			      partno, (unsigned long long)cur_offset,
+			      (unsigned long long)slave->offset);
 		}
 	}
 	if (slave->mtd.size == MTDPART_SIZ_FULL)
 		slave->mtd.size = master->size - slave->offset;
 
-	printk(KERN_NOTICE "0x%012llx-0x%012llx : \"%s\"\n", (unsigned long long)slave->offset,
-		(unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);
+	debug("0x%012llx-0x%012llx : \"%s\"\n",
+	      (unsigned long long)slave->offset,
+	      (unsigned long long)(slave->offset + slave->mtd.size),
+	      slave->mtd.name);
 
 	/* let's do some sanity checks */
 	if (slave->offset >= master->size) {
@@ -463,7 +465,7 @@ int add_mtd_partitions(struct mtd_info *master,
 	if (mtd_partitions.next == NULL)
 		INIT_LIST_HEAD(&mtd_partitions);
 
-	printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
+	debug("Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
 
 	for (i = 0; i < nbparts; i++) {
 		slave = add_one_partition(master, parts + i, i, cur_offset);
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 507bbc2..eeba521 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -30,8 +30,6 @@
 
 #define DRIVER_NAME "mxc_nand"
 
-typedef enum {false, true} bool;
-
 struct mxc_nand_host {
 	struct mtd_info			mtd;
 	struct nand_chip		*nand;
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index ff2d348..4727f9c 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -416,11 +416,13 @@ int nand_unlock(struct mtd_info *mtd, loff_t start, size_t length,
  * @param nand NAND device
  * @param offset offset in flash
  * @param length image length
+ * @param used length of flash needed for the requested length
  * @return 0 if the image fits and there are no bad blocks
  *         1 if the image fits, but there are bad blocks
  *        -1 if the image does not fit
  */
-static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length)
+static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length,
+		size_t *used)
 {
 	size_t len_excl_bad = 0;
 	int ret = 0;
@@ -442,8 +444,13 @@ static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length)
 			ret = 1;
 
 		offset += block_len;
+		*used += block_len;
 	}
 
+	/* If the length is not a multiple of block_len, adjust. */
+	if (len_excl_bad > length)
+		*used -= (len_excl_bad - length);
+
 	return ret;
 }
 
@@ -476,23 +483,36 @@ static size_t drop_ffs(const nand_info_t *nand, const u_char *buf,
  * Write image to NAND flash.
  * Blocks that are marked bad are skipped and the is written to the next
  * block instead as long as the image is short enough to fit even after
- * skipping the bad blocks.
+ * skipping the bad blocks.  Due to bad blocks we may not be able to
+ * perform the requested write.  In the case where the write would
+ * extend beyond the end of the NAND device, both length and actual (if
+ * not NULL) are set to 0.  In the case where the write would extend
+ * beyond the limit we are passed, length is set to 0 and actual is set
+ * to the required length.
  *
  * @param nand  	NAND device
  * @param offset	offset in flash
  * @param length	buffer length
+ * @param actual	set to size required to write length worth of
+ *			buffer or 0 on error, if not NULL
+ * @param lim		maximum size that actual may be in order to not
+ *			exceed the buffer
  * @param buffer        buffer to read from
  * @param flags		flags modifying the behaviour of the write to NAND
  * @return		0 in case of success
  */
 int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
-			u_char *buffer, int flags)
+		size_t *actual, loff_t lim, u_char *buffer, int flags)
 {
 	int rval = 0, blocksize;
 	size_t left_to_write = *length;
+	size_t used_for_write = 0;
 	u_char *p_buffer = buffer;
 	int need_skip;
 
+	if (actual)
+		*actual = 0;
+
 #ifdef CONFIG_CMD_NAND_YAFFS
 	if (flags & WITH_YAFFS_OOB) {
 		if (flags & ~WITH_YAFFS_OOB)
@@ -529,13 +549,23 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
 		return -EINVAL;
 	}
 
-	need_skip = check_skip_len(nand, offset, *length);
+	need_skip = check_skip_len(nand, offset, *length, &used_for_write);
+
+	if (actual)
+		*actual = used_for_write;
+
 	if (need_skip < 0) {
 		printf("Attempt to write outside the flash area\n");
 		*length = 0;
 		return -EINVAL;
 	}
 
+	if (used_for_write > lim) {
+		puts("Size of write exceeds partition or device limit\n");
+		*length = 0;
+		return -EFBIG;
+	}
+
 	if (!need_skip && !(flags & WITH_DROP_FFS)) {
 		rval = nand_write(nand, offset, length, buffer);
 		if (rval == 0)
@@ -626,36 +656,58 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
  *
  * Read image from NAND flash.
  * Blocks that are marked bad are skipped and the next block is read
- * instead as long as the image is short enough to fit even after skipping the
- * bad blocks.
+ * instead as long as the image is short enough to fit even after
+ * skipping the bad blocks.  Due to bad blocks we may not be able to
+ * perform the requested read.  In the case where the read would extend
+ * beyond the end of the NAND device, both length and actual (if not
+ * NULL) are set to 0.  In the case where the read would extend beyond
+ * the limit we are passed, length is set to 0 and actual is set to the
+ * required length.
  *
  * @param nand NAND device
  * @param offset offset in flash
  * @param length buffer length, on return holds number of read bytes
+ * @param actual set to size required to read length worth of buffer or 0
+ * on error, if not NULL
+ * @param lim maximum size that actual may be in order to not exceed the
+ * buffer
  * @param buffer buffer to write to
  * @return 0 in case of success
  */
 int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
-		       u_char *buffer)
+		size_t *actual, loff_t lim, u_char *buffer)
 {
 	int rval;
 	size_t left_to_read = *length;
+	size_t used_for_read = 0;
 	u_char *p_buffer = buffer;
 	int need_skip;
 
 	if ((offset & (nand->writesize - 1)) != 0) {
 		printf("Attempt to read non page-aligned data\n");
 		*length = 0;
+		if (actual)
+			*actual = 0;
 		return -EINVAL;
 	}
 
-	need_skip = check_skip_len(nand, offset, *length);
+	need_skip = check_skip_len(nand, offset, *length, &used_for_read);
+
+	if (actual)
+		*actual = used_for_read;
+
 	if (need_skip < 0) {
 		printf("Attempt to read outside the flash area\n");
 		*length = 0;
 		return -EINVAL;
 	}
 
+	if (used_for_read > lim) {
+		puts("Size of read exceeds partition or device limit\n");
+		*length = 0;
+		return -EFBIG;
+	}
+
 	if (!need_skip) {
 		rval = nand_read(nand, offset, length, buffer);
 		if (!rval || rval == -EUCLEAN)
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index d144ac2..a708162 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -478,19 +478,19 @@ static int attach_by_scanning(struct ubi_device *ubi)
 
 	err = ubi_eba_init_scan(ubi, si);
 	if (err)
-		goto out_wl;
+		goto out_vtbl;
 
 	err = ubi_wl_init_scan(ubi, si);
 	if (err)
-		goto out_vtbl;
+		goto out_eba;
 
 	ubi_scan_destroy_si(si);
 	return 0;
 
+out_eba:
+	ubi_eba_close(ubi);
 out_vtbl:
 	vfree(ubi->vtbl);
-out_wl:
-	ubi_wl_close(ubi);
 out_si:
 	ubi_scan_destroy_si(si);
 	return err;
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 14c3a5f..044e849 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -59,7 +59,11 @@
 #define UBI_NAME_STR "ubi"
 
 /* Normal UBI messages */
+#ifdef CONFIG_UBI_SILENCE_MSG
+#define ubi_msg(fmt, ...)
+#else
 #define ubi_msg(fmt, ...) printk(KERN_NOTICE "UBI: " fmt "\n", ##__VA_ARGS__)
+#endif
 /* UBI warning messages */
 #define ubi_warn(fmt, ...) printk(KERN_WARNING "UBI warning: %s: " fmt "\n", \
 				  __func__, ##__VA_ARGS__)
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 88b867a..d1ba722 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1538,6 +1538,7 @@ int ubi_wl_init_scan(struct ubi_device *ubi, struct ubi_scan_info *si)
 	if (ubi->avail_pebs < WL_RESERVED_PEBS) {
 		ubi_err("no enough physical eraseblocks (%d, need %d)",
 			ubi->avail_pebs, WL_RESERVED_PEBS);
+		err = -ENOSPC;
 		goto out_free;
 	}
 	ubi->avail_pebs -= WL_RESERVED_PEBS;