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| author | Felix Fietkau <nbd@nbd.name> | 2017-11-03 09:53:54 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2017-11-06 16:38:25 +0100 |
| commit | c08293893aadca182b52ef96d3c2b1700282f0f2 (patch) | |
| tree | b7cd8f1ea172201bb358c920437952dc53cf6c95 /target/linux/generic/config-4.9 | |
| parent | 94491a15712732c56dccbf4593000376ae275134 (diff) | |
| download | upstream-c08293893aadca182b52ef96d3c2b1700282f0f2.tar.gz upstream-c08293893aadca182b52ef96d3c2b1700282f0f2.tar.bz2 upstream-c08293893aadca182b52ef96d3c2b1700282f0f2.zip | |
kernel: add support for limiting 4K erase sector support based on flash chip size
Some targets need 4K sectors for small flash chips (e.g. some
routerboards, where the entire chip is just one "erase block"), whereas
on other devices 4K sectors lead to horrible flash erase/write
performance.
Set the default limit in the generic kernel configuration to 4 MiB to
ensure that all new platforms don't use 4K sectors for bigger flash
chips. On all existing targets use 16 MiB for now to avoid regressions.
They will be changed individually in follow-up commits.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target/linux/generic/config-4.9')
| -rw-r--r-- | target/linux/generic/config-4.9 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target/linux/generic/config-4.9 b/target/linux/generic/config-4.9 index 9512e494af..e591ac6655 100644 --- a/target/linux/generic/config-4.9 +++ b/target/linux/generic/config-4.9 @@ -2632,6 +2632,7 @@ CONFIG_MTD_ROOTFS_ROOT_DEV=y # CONFIG_MTD_SPINAND_MT29F is not set # CONFIG_MTD_SPI_NOR is not set # CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set +CONFIG_MTD_SPI_NOR_USE_4K_SECTORS_LIMIT=4096 CONFIG_MTD_SPLIT=y # CONFIG_MTD_SPLIT_BRNIMAGE_FW is not set # CONFIG_MTD_SPLIT_EVA_FW is not set |