tree b5253cac4e72e90a72b04ed1fabe40a49ce9d555
parent bcf941fa052092bbf8f85a90905be670fce4f6a5
author Raul Benet <raul.benet@kaptivo.com> 1560434397 +0100
committer Matthias Brugger <mbrugger@suse.com> 1567786619 +0200

mmc: bcm2835-host: Fix wait_transfer_complete

Function bcm_2835_wait_transfer_complete() is not waiting long enough.
The previous code was claiming to wait for ~1 seconds, but as it depends
on register reads it's time actually varies.
Some cards require wait times of up to ~56 ms to perform
the command 'saveenv' on an EXT4 partition.

Re-implement the loop exit condition to use get_timer() which allows
to specify the wait time in more reliable manner. Set the maximum wait
time to the originally intended 1 second.

Signed-off by: Raul Benet <raul.benet_at_kaptivo.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>