This is a note to let you know that I've just added the patch titled
mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-spi-nor-spansion-enable-jffs2-write-buffer-for-infineon-s25hx-semper-flash.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4199c1719e24e73be0acc8b0146fc31ad8af9771 Mon Sep 17 00:00:00 2001
From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
Date: Thu, 6 Apr 2023 15:17:45 +0900
Subject: mtd: spi-nor: spansion: Enable JFFS2 write buffer for Infineon s25hx SEMPER flash
From: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
commit 4199c1719e24e73be0acc8b0146fc31ad8af9771 upstream.
Infineon(Cypress) SEMPER NOR flash family has on-die ECC and its program
granularity is 16-byte ECC data unit size. JFFS2 supports write buffer
mode for ECC'd NOR flash. Provide a way to clear the MTD_BIT_WRITEABLE
flag in order to enable JFFS2 write buffer mode support.
Fixes: b6b23833fc42 ("mtd: spi-nor: spansion: Add s25hl-t/s25hs-t IDs and fixups")
Suggested-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@xxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/a1cc128e094db4ec141f85bd380127598dfef17e.1680760742.git.Takahiro.Kuwano@xxxxxxxxxxxx
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mtd/spi-nor/spansion.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -255,13 +255,10 @@ static void s25hx_t_post_sfdp_fixup(stru
static void s25hx_t_late_init(struct spi_nor *nor)
{
- struct spi_nor_flash_parameter *params = nor->params;
-
/* Fast Read 4B requires mode cycles */
- params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
+ nor->params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
- /* The writesize should be ECC data unit size */
- params->writesize = 16;
+ cypress_nor_ecc_init(nor);
}
static struct spi_nor_fixups s25hx_t_fixups = {
Patches currently in stable-queue which might be from Takahiro.Kuwano@xxxxxxxxxxxx are
queue-6.2/mtd-spi-nor-spansion-enable-jffs2-write-buffer-for-infineon-s25hx-semper-flash.patch
