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| H A D | spl.c | ba4e159f9804c02a87ed38be0ed669a348d78f25 Mon Sep 12 14:38:36 UTC 2016 Fabio Estevam <fabio.estevam@nxp.com> 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>
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