On Mon, Jan 07, 2019 at 11:13:19PM +0100, Wolfram Sang wrote: > Documentation for ES1.0 says that some bits in TDSEL must be set (ch > 5.3.39 in R-Car H2 v0.91). However, the reset value of the register is > 0, so software has to do it. Add this to the kernel driver to ensure > this is really done independent of firmware versions and use > whitelisting for ES versions known to need this. > > This is needed for some SD cards supporting SDR104 transfer mode. For > me, TDSEL was not initialized by the firmware and I had problems with > the card when re-inserting it. > > Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
