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| H A D | orangepi_zero_defconfig | 8792a64d87708139bc0cf8b48d4a580a39167473 Sun Jul 23 20:14:23 UTC 2017 Clément Bœsch <u@pkh.me> sunxi: reduce Orange Pi Zero DRAM clock speed
Using `fel-boot-lima-memtester-on-orange-pi-pc 672` on an Orange Pi
without heatsink results in the following error after a few minutes:
WRITE FAILURE: 0x00200000 != 0xffdfffff at offset 0x0137f47c (bitflip).
Also, the constructor repository (github/orangepi-xunlong) seems to
contain that 624 Mhz clock speed in its u-boot fork. It may be that 672
Mhz is the advertized overclocked speed.
According to http://linux-sunxi.org/Orange_Pi_PC#DRAM_clock_speed_limit
it may be worth decreasing that value with other Orange Pi boards.
See also e7d6aa0b74b7f4d08ee68da8a586c76c761348e2.
Signed-off-by: Clément Bœsch <u@pkh.me>
[Add s-o-b line]
Signed-off-by: Jagan Teki <jagan@openedev.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
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| H A D | orangepi_pc_defconfig | e7d6aa0b74b7f4d08ee68da8a586c76c761348e2 Wed Dec 23 10:48:40 UTC 2015 Hans de Goede <hdegoede@redhat.com> sunxi: Reduce Orangepi PC RAM speed to 624 MHz
There are some reports of stability issues at 672 MHz, see:
http://linux-sunxi.org/Orange_Pi_PC#DRAM_clock_speed_limit
So reduce the DRAM speed to 624MHz which seems to be reliable everywhere.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
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