[U-Boot] [PATCH v4] spi: kirkwood_spi: implement workaround for FE-9144572

Jagan Teki jagannadh.teki at gmail.com
Mon Jan 22 09:53:29 UTC 2018


On Mon, Jan 22, 2018 at 3:14 PM, Chris Packham <judge.packham at gmail.com> wrote:
> Erratum NO. FE-9144572: The device SPI interface supports frequencies of
> up to 50 MHz.  However, due to this erratum, when the device core clock
> is 250 MHz and the SPI interfaces is configured for 50MHz SPI clock and
> CPOL=CPHA=1 there might occur data corruption on reads from the SPI
> device.
>
> Implement the workaround by setting the TMISO_SAMPLE value to 0x2
> in the timing1 register.
>
> Signed-off-by: Chris Packham <judge.packham at gmail.com>
> Reviewed-by: Stefan Roese <sr at denx.de>
> Reviewed-by: Jagan Teki <jagan at openedev.com>
> ---

Applied to u-boot-spi/master


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