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kernel: move Toshiba-TC58NVG0S3H patch to ipq40xx

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Hannu Nyman wrote in openwrt's github issue #9962:
|Based on forum discussion, the commit 0bc794a
|"kernel: add support for Toshiba TC58NVG0S3HTA00 NAND flash"
|causes flash memory chip misdetection for some other
|Fritzbox devices, as the commit only defines a 4-byte flash
|memory chip ID that matches several chips used in the devices.
|
|See discussion from this onward
|<https://forum.openwrt.org/t/openwrt-22-03-0-rc1-first-release-candidate/126045/182>
|
|OpenWrt 22.03.0-rc2 and rc3 are causing on a Fritzbox 7412
|bootloops due to a misdetected flash chip.
|
|Yup, that patch is missing the 5th ID byte entirely - both chips
|share the same first 4;
|
| TC58NVG0S3HTA00 = 0x98 0xf1 0x80 0x15 0x72 (digikey datasheet, page 35)
| TC58BVG0S3HTA00 = 0x98 0xf1 0x80 0x15 0xf2 (digikey datasheet, page 28)
|
|The commit has also been backported to openwrt-22.03 after rc1,
|so both rc2 and rc3 suffer from this bug."

Andreas' TC58NVG0S3H seems not to follow Toshibas/Kioxa's own datasheet.
It only reports the first four bytes: "98 f1 80 15 00 00 00 00".

This patch changes the id_len in the entry to 8. This makes it so that
Andreas' NAND is still detected. At the same time, this prevents other
Toshiba NAND flash chips - that share the same four bytes - from being
misdetected.

The issue has been reported upstream, since they also accepted the initial
patch... so if not addressed, 5.19/5.20 will also break those affected
devices again.

Reported-by: Peter-vdL
Fixes: 0bc794a668 ("kernel: add support for Toshiba TC58NVG0S3HTA00 NAND flash")
Link: <https://github.com/openwrt/openwrt/issues/9962>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Christian Lamparter 2022-06-05 20:44:27 +02:00
parent 156488d1d6
commit b047ca1aa0
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
target/linux/generic/pending-5.10/444-mtd-nand-rawnand-add-support-for-Toshiba-TC58NVG0S3H.patch
View File

@ -13,6 +13,7 @@ has 128 bytes OOB. This adds a static NAND ID entry to correct this.
Tested on FRITZ!Box 7530 flashed with OpenWrt.
Signed-off-by: Andreas Böhler <dev@aboehler.at>
(changed id_len to 8)
---
drivers/mtd/nand/raw/nand_ids.c | 3 +++
1 file changed, 3 insertions(+)
@ -27,7 +28,7 @@ index 6e41902be35f..d64adbd1ce6b 100644
SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512), },
+ {"TC58NVG0S3HTA00 1G 3.3V 8-bit",
+ { .id = {0x98, 0xf1, 0x80, 0x15} },
+ SZ_2K, SZ_128, SZ_128K, 0, 4, 128, NAND_ECC_INFO(8, SZ_512), },
+ SZ_2K, SZ_128, SZ_128K, 0, 8, 128, NAND_ECC_INFO(8, SZ_512), },
{"TC58NVG2S0F 4G 3.3V 8-bit",
{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} },
SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) },

3
target/linux/generic/pending-5.15/444-mtd-nand-rawnand-add-support-for-Toshiba-TC58NVG0S3H.patch
View File

@ -13,6 +13,7 @@ has 128 bytes OOB. This adds a static NAND ID entry to correct this.
Tested on FRITZ!Box 7530 flashed with OpenWrt.
Signed-off-by: Andreas Böhler <dev@aboehler.at>
(changed id_len to 8)
---
drivers/mtd/nand/raw/nand_ids.c | 3 +++
1 file changed, 3 insertions(+)
@ -25,7 +26,7 @@ Signed-off-by: Andreas Böhler <dev@aboehler.at>
SZ_2K, SZ_128, SZ_128K, 0, 8, 64, NAND_ECC_INFO(1, SZ_512), },
+ {"TC58NVG0S3HTA00 1G 3.3V 8-bit",
+ { .id = {0x98, 0xf1, 0x80, 0x15} },
+ SZ_2K, SZ_128, SZ_128K, 0, 4, 128, NAND_ECC_INFO(8, SZ_512), },
+ SZ_2K, SZ_128, SZ_128K, 0, 8, 128, NAND_ECC_INFO(8, SZ_512), },
{"TC58NVG2S0F 4G 3.3V 8-bit",
{ .id = {0x98, 0xdc, 0x90, 0x26, 0x76, 0x15, 0x01, 0x08} },
SZ_4K, SZ_512, SZ_256K, 0, 8, 224, NAND_ECC_INFO(4, SZ_512) },