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From: Tudor Ambarus
To: , ,
CC: , , "Tudor
Ambarus"
Subject: [mtd-www][PATCH] doc: nand: Add note about CONFIG_MTD_CHAR
Date: Tue, 19 Apr 2022 15:48:01 +0300
Message-ID: <20220419124801.74288-1-tudor.ambarus@microchip.com>
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Content preview: mtdchar module was merged in mtdcore a long time ago. Add
a comment about JFFS2 CONFIG_MTD_CHAR requirement. Signed-off-by: Tudor
Ambarus
--- doc/nand.xml | 4 +++- 1 file changed, 3
insertions(+), 1 deletion(-)
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mtdchar module was merged in mtdcore a long time ago. Add a comment about
JFFS2 CONFIG_MTD_CHAR requirement.
Signed-off-by: Tudor Ambarus
---
doc/nand.xml | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/doc/nand.xml b/doc/nand.xml
index 70bd4b4..ebd1255 100644
--- a/doc/nand.xml
+++ b/doc/nand.xml
@@ -315,7 +315,6 @@ maintainer to include it
if one of these settings is missing.
CONFIG_MTD=y
-CONFIG_MTD_CHAR=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_YOURBOARD=y
CONFIG_JFFS2_FS=y
@@ -323,6 +322,9 @@ CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_NAND=y
+mtdchar module was merged in mtdcore in kernel v3.10. Older kernels should
+set CONFIG_MTD_CHAR=y in order that JFFS2 to work on NAND.
+
Note that mounting a JFFS2 filesystem doesn't require using mtdblock. It's
possible to mount a rootfs using the MTD device on the "root=" bootargs as
"root=mtd2" or "root=mtd:name_of_device".