[U-Boot] [PATCH v2 2/7] spi: cadence_qspi: Fix baud rate calculation

Marek Vasut marex at denx.de
Fri Nov 4 21:58:38 CET 2016


On 11/03/2016 01:19 PM, Phil Edworthy wrote:
> With the existing code, when the requested SPI clock rate is near
> to the lowest that can be achieved by the hardware (max divider
> of the ref clock is 32), the generated clock rate is wrong.
> For example, with a 50MHz ref clock, when asked for anything less
> than a 1.5MHz SPI clock, the code sets up the divider to generate
> 25MHz.
> 
> This change fixes the calculation.
> 
> Signed-off-by: Phil Edworthy <phil.edworthy at renesas.com>
> ---
> v2:
>  - Use the DIV_ROUND_UP macro

Acked-by: Marek Vasut <marex at denx.de>


-- 
Best regards,
Marek Vasut


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