From c345927696d18c8c00d0f1d1820d2c21dee32a09 Mon Sep 17 00:00:00 2001 From: Max Krummenacher Date: Mon, 13 Jun 2016 10:15:48 +0200 Subject: nand: extend nand torture MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit nand torture currently works on exactly one nand block which is specified by giving the byteoffset to the beginning of the block. Extend this by allowing for a second parameter specifying the byte size to be tested. e.g. ==> nand torture 1000000 NAND torture: device 0 offset 0x1000000 size 0x20000 (block size 0x20000) Passed: 1, failed: 0 ==> nand torture 1000000 40000 NAND torture: device 0 offset 0x1000000 size 0x40000 (block size 0x20000) Passed: 2, failed: 0 Signed-off-by: Max Krummenacher Reviewed-by: Benoît Thébaudeau [scottwood: fix usage to show size as optional, and add misssing braces] Signed-off-by: Scott Wood (cherry picked from commit 1866be7d28ce807397e4aedd93f70564ac8bebc0) --- doc/README.nand | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'doc') diff --git a/doc/README.nand b/doc/README.nand index 0ff56331d5..a6925bd0d0 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -310,7 +310,7 @@ 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. @@ -327,6 +327,10 @@ 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) -- cgit v1.2.3