Re: [U-Boot] [PATCH] configs: Lower Lamobo R1 DRAM clock rate to 384 MHz

On Fri, Jun 15, 2018 at 10:52:39PM +0200, Paul Kocialkowski wrote:

When running at 432 MHz, the Lamobo R1 DRAM tends to get corrupted under stressing workloads. Reducing the clock rate to 384 MHz results in significantly-improved stability.

One reliable way to trigger a corruption at 432 MHz is to run I/O-intensive operations on an attached SATA disk. The same operations when operating the DRAM at 384 MHz typically go fine.

For some unexplained reason, running at 408 MHz worsens the situation.

Signed-off-by: Paul Kocialkowski contact@paulk.fr

What RAM settings are used by the Allwinner BSP, and can you reproduce the issue there if they are the same?

Maxime