X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.nand;h=2295bb2d962a18e6c57ef415058cfb331ba1db59;hb=f34ccce50a1805a6fdb2d1604ec4e40d79302455;hp=96ffc489408853729292bb1818e4af2c355c9df5;hpb=d77fa2ff766bbb4b867e791187f78b6033071613;p=u-boot

diff --git a/doc/README.nand b/doc/README.nand
index 96ffc48940..2295bb2d96 100644
--- a/doc/README.nand
+++ b/doc/README.nand
@@ -137,7 +137,7 @@ Configuration Options:
       init:
 
 	/* chip is struct nand_chip, and is now provided by the driver. */
-	mtd = &chip.mtd;
+	mtd = nand_to_mtd(&chip);
 
 	/*
 	 * Fill in appropriate values if this driver uses these fields,
@@ -160,7 +160,7 @@ Configuration Options:
 
 	/*
 	 * devnum is the device number to be used in nand commands
-	 * and in mtd->name.  Must be less than CONFIG_SYS_NAND_MAX_DEVICE.
+	 * and in mtd->name.  Must be less than CONFIG_SYS_MAX_NAND_DEVICE.
 	 */
 	if (nand_register(devnum, mtd))
 		error out
@@ -271,7 +271,7 @@ Platform specific options
 
 		However, for 4K pagesize NAND
 		NAND_PAGESIZE = 4096
-		NAND_OOBSIZE = 64
+		NAND_OOBSIZE = 224
 		ECC_BYTES = 26
 		2 + (4096 / 512) * 26 = 210 < NAND_OOBSIZE
 		Thus BCH16 can be supported on 4K page NAND.
@@ -307,7 +307,7 @@ Miscellaneous and testing commands:
   DANGEROUS!!! Factory set bad blocks will be lost. Use only
   to remove artificial bad blocks created with the "markbad" command.
 
-  "torture offset"
+  "torture offset [size]"
   Torture block to determine if it is still reliable.
   Enabled by the CONFIG_CMD_NAND_TORTURE configuration option.
   This command returns 0 if the block is still reliable, else 1.
@@ -324,6 +324,10 @@ Miscellaneous and testing commands:
   automate actions following a nand->write() error. This would e.g. be required
   in order to program or update safely firmware to NAND, especially for the UBI
   part of such firmware.
+  Optionally, a second parameter size can be given to test multiple blocks with
+  one call. If size is not a multiple of the NAND's erase size, then the block
+  that contains offset + size will be tested in full. If used with size, this
+  command returns 0 if all tested blocks have been found reliable, else 1.
 
 
 NAND locking command (for chips with active LOCKPRE pin)