diff options
| author | Fabio Estevam <fabio.estevam@nxp.com> | 2016-09-12 11:38:36 -0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-10-04 12:01:14 +0200 |
| commit | ba4e159f9804c02a87ed38be0ed669a348d78f25 (patch) | |
| tree | 2fa21834b34f5ceb90b097dd6f63ab937da15625 /arch | |
| parent | 53fec162061811a73c7dab3207f8fdb2343ae289 (diff) | |
wandboard: Fix hang when going into low frequency
A kernel hang is observed when running wandboard 3.14 kernel and
going to the lowest operational point of cpufreq:
# ifconfig eth0 down
# echo 1 > /sys/class/graphics/fb0/blank
The problem is caused by incorrect setting of the REFR field
of register MDREF. Setting it to 4 refresh commands per refresh
cycle fixes the hang.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions