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

[Paul Kocialkowski]

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 at paulk.fr>
---
 configs/Lamobo_R1_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configs/Lamobo_R1_defconfig b/configs/Lamobo_R1_defconfig
index 92e682128c..cf60fdfaf4 100644
--- a/configs/Lamobo_R1_defconfig
+++ b/configs/Lamobo_R1_defconfig
@@ -2,7 +2,7 @@ CONFIG_ARM=y
 CONFIG_ARCH_SUNXI=y
 CONFIG_SYS_TEXT_BASE=0x4a000000
 CONFIG_MACH_SUN7I=y
-CONFIG_DRAM_CLK=432
+CONFIG_DRAM_CLK=384
 CONFIG_MACPWR="PH23"
 CONFIG_MMC0_CD_PIN="PH10"
 CONFIG_SATAPWR="PB3"
-- 
2.17.1