From: Alessandro Rubini <rubini@gnudd.com>
Date: Sun, 3 Dec 2023 17:08:26 +0000 (+0100)
Subject: tools: mxsboot: pre-fill buffer with 0xff, not 0
X-Git-Url: http://git.dujemihanovic.xyz/html/index.html?a=commitdiff_plain;h=4ac5620270ddc5b31cf8600ffa5990be197597c9;p=u-boot.git

tools: mxsboot: pre-fill buffer with 0xff, not 0

The tool works for me, with imx28 and NAND memory, but the resulting
blocks are reported as bad, both by u-boot and the kernel.

This makes it impossible to erase from Linux (for an upgrade without
console access, for example -- u-boot can "nand scrub" but linux can't).

pre-filling with 0xff creates a proper boot loader image, but no
bad-block marker is there when written to flash.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
---

diff --git a/tools/mxsboot.c b/tools/mxsboot.c
index 04d86f87a8..8f4018aa56 100644
--- a/tools/mxsboot.c
+++ b/tools/mxsboot.c
@@ -478,7 +478,7 @@ static int mx28_create_nand_image(int infd, int outfd)
 		goto err0;
 	}
 
-	memset(buf, 0, size);
+	memset(buf, 0xff, size);
 
 	fcb = mx28_nand_get_fcb(MAX_BOOTSTREAM_SIZE);
 	if (!fcb) {