sunxi: OLinuXino Lime A20 boards: Use 384 MHz DRAM clock
authorJosh Marshall <josh.marshall@tecevo.com>
Fri, 30 Sep 2016 05:19:58 +0000 (15:19 +1000)
committerHans de Goede <hdegoede@redhat.com>
Mon, 10 Oct 2016 07:24:00 +0000 (09:24 +0200)
commit55cdcdaad3edb24779b76716d5cf9c36db2fed44
tree9d240da5e00ee049f852031bfd320ca3d9a6aa3b
parent7c9454d4439ad4a9984394cbde77f0f8bc330d2c
sunxi: OLinuXino Lime A20 boards: Use 384 MHz DRAM clock

We have a number of OlinuXino Lime2 boards (both NAND and eMMC versions)
which were experiencing sporadic hangs. After testing with some heavy
benchmarking and help from the Armbian forum, it was pinned down as the
DRAM settings for the board. The default is 480MHz, but this is unstable,
and even the build instructions from the vendor Olimex themselves say to
set the DRAM clock to 384. See line 96 at:
https://github.com/OLIMEX/OLINUXINO/blob/master/SOFTWARE/A20/A20-build-3.4.103-release-2/BUILD_DESCRIPTION_A20_Olimex_kernel_3.4.103%2B_Jessie_rel_2.txt

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
configs/A20-OLinuXino-Lime2_defconfig
configs/A20-OLinuXino-Lime_defconfig