On Wed, Jan 6, 2021 at 11:06 PM Andre Przywara <[email protected]> wrote: > > The H6 manual explicitly lists a frequency limit of 150 MHz for the bus > frequency of the MMC controllers. So far we had no explicit limits in the > DT, which limited eMMC to a rather conservative 52 MHz.
I'd say this is implementation specific. FreeBSD might have other defaults? > Put those maximum frequencies in the SoC .dtsi, to allow higher speed > modes (which still would need to be explicitly enabled, per board). > > Tested with an eMMC using HS-200 on a Pine H64. Running at the spec'ed > 200 MHz indeed fails with I/O errors, but 150 MHz seems to work stably. > > Signed-off-by: Andre Przywara <[email protected]> Fixes tag? Thanks ChenYu -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/CAGb2v64NM9iyYG1x1gvBZ8biwTG-%3Dp1a%3DWPidyX17sjZTVjt6Q%40mail.gmail.com.
