nvvram: no checksum error recording on WRT54G3GV2(-VF)

The CFE of the WRT54G3GV2 expects two firmware images, if one of them
produces a CRC error (which is the case after you installed OpenWrt, as
there is no second image), it writes one of three consecutive bytes to
the flash. (Look for "Image Status : IMG2_BAD" during boot.)

After the third boot with a CRC error, it stops and waits for a new
firmware image. To prevent this 'noset_try_flag' must be set to 1 on boot.

Tested with my own box.

Signed-off-by: Niclas Koeser <nks at informatik.uni-kiel.de>

SVN-Revision: 23007

1 files changed, 6 insertions, 0 deletions

diff --git a/package/nvram/files/nvram.init b/package/nvram/files/nvram.init
index 0267a80..467ab28 100755
--- a/package/nvram/files/nvram.init
+++ b/package/nvram/files/nvram.init
@@ -59,6 +59,12 @@ fixup_linksys() {
 				echo "sdram_init is invaild: $(printf 0x%04x $SDRAM_INIT), force to default!"
 				nvram_set sdram_init 0x0009
 			}
+			# on WRT54G3GV2 set flag, so checksum errors of firmware image 2 don't stop the boot process
+			noset_try_flag=$(nvram get noset_try_flag)
+			[ "$noset_try_flag" = 0 ] && {
+				echo "setting noset_try_flag to 1."
+				nvram_set noset_try_flag 1
+			}
 			[ "$COMMIT" = 1 ] && {
 				nvram_set sdram_ncdl 0x0
 			}