[U-Boot] [PATCH 3/3] ubi: Add "skipcheck" command to set/clear this bit in the UBI volume hdr

Heiko Schocher hs at denx.de
Tue Sep 17 05:45:40 UTC 2019

Hello Stefan,

Am 12.09.2019 um 16:41 schrieb Stefan Roese:
> U-Boot now supports the "skip_check" flag to optionally skip the CRC
> check at open time. Currently its only possible to set this bit upon
> UBI volume creation. But it might be very useful to also set this bit
> on already installed systems (e.g. field upgrade) to make also use of
> the boot-time decrease on those systems.
> This patch now adds a new "ubi" command "ubi skipcheck" to set or clear
> this bit in the UBI volume header:
> => ubi skipcheck rootfs0 on
> Setting skip_check on volume rootfs0
> BTW: This saves approx. 10 seconds Linux bootup time on a MT7688 based
> target with 128MiB of SPI NAND.
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Quentin Schulz <quentin.schulz at bootlin.com>
> Cc: Boris Brezillon <boris.brezillon at bootlin.com>
> Cc: Heiko Schocher <hs at denx.de>
> ---
>   cmd/ubi.c | 34 ++++++++++++++++++++++++++++++++++
>   1 file changed, 34 insertions(+)

Reviewed-by: Heiko Schocher <hs at denx.de>

Could you please send a v2 with the suggestion from Andreas to add
some infos into doc/README.ubi?


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