24 May
2018
24 May
'18
10:24 a.m.
The bcm2835 sdhost driver has a problem with "write multiple" commands. It seems to boil down to the fact that the controller dislikes its FIFO to get drained at the end of a block when a write multiple blocks command is in flight.
The easy fix is to simply get rid of all the IRQ driven logic and make the driver push as much data into the FIFO as it can. That way we never drain and we never run into the problem.
Reported-by: Jan Leonhardt jan@cyberdesigner.net Signed-off-by: Alexander Graf agraf@suse.de
Thanks, applied to rpi-next
Alex