[U-Boot] [PATCH 0/4] dra7xx: QSPI: Increase SPI bus speed.
Tom Rini
trini at konsulko.com
Mon Jul 25 15:38:00 CEST 2016
On Mon, Jul 25, 2016 at 03:45:43PM +0530, Vignesh R wrote:
> By configuring DPLL_PER_HS13 divider value to provide 76.8MHz clock as
> QSPI fclk on dra7xx, it is possible to operate SPI slave clock at
> 768.MHz which is the maximum supported frequency as per AM572x DM
> SPRS953A. This helps to increase flash read speed by ~2MB/s.
>
> Tested on DRA74 Rev G & H, DRA72 Rev B & C EVMs.
And for the record, there is no HW that exists "in the wild" that would
not support these options, yes? Thanks!
--
Tom
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