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| author | Max Krummenacher <max.krummenacher@toradex.com> | 2024-02-07 16:17:19 +0100 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2024-02-07 18:50:27 +0100 |
| commit | 0dae0c54feafd327366df4eac6f8948d2b167afa (patch) | |
| tree | 15bac3b3d180297d0d6a85ad33881877087bfc83 /Documentation/dmaengine | |
| parent | 340d0000d1e277a5ec64e5bd903dab8ed1df1860 (diff) | |
Revert "Revert "mtd: rawnand: gpmi: Fix setting busy timeout setting""toradex_5.4.y
This reverts commit 15a3adfe75937c9e4e0e48f0ed40dd39a0e526e2.
The backport of [1] relies on having [2] also backported. Having only
one of the two results in a bogus hw->timing1 setting.
If only [2] is backportet the 16 bit register value likely underflows
resulting in a busy_wait_timeout of 0.
Or if only [1] is applied the value likely overflows with chances of
having last 16 LSBs all 0 which would then result in a
busy_wait_timeout of 0 too.
Both cases may lead to NAND data corruption, e.g. on a Colibri iMX7
setup this has been seen.
[1] commit 0fddf9ad06fd ("mtd: rawnand: gpmi: Set WAIT_FOR_READY
timeout based on program/erase times")
[2] commit 06781a5026350 ("mtd: rawnand: gpmi: Fix setting busy
timeout setting")
Upstream-Status: Submitted [https://lore.kernel.org/all/20240207174911.870822-1-max.oss.09@gmail.com/]
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'Documentation/dmaengine')
0 files changed, 0 insertions, 0 deletions