Am Donnerstag, 12. Mai 2016, 15:43:05 schrieb Brian Norris: > The output tap delay controls helps maintain the hold requirements for > eMMC. The exact value is dependent on the SoC and other factors, though > it isn't really an exact science. But the default of 0 is not very good, > as it doesn't give the eMMC much hold time, so let's bump up to 4 > (approx 90 degree phase?). If we need to configure this any further > (e.g., based on board or speed factors), we may need to consider a > device tree representation. > > Suggested-by: Shawn Lin <shawn....@rock-chips.com> > Signed-off-by: Brian Norris <briannor...@chromium.org>
on my rk3399-evb board the emmc still runs nicely with this patch, so Tested-by: Heiko Stuebner <he...@sntech.de>
