I use DDR1600, so i defined BLDCFG_MEMORY_BUS_FREQUENCY_LIMIT to DDR1600_FREQUENCY.
Also a have #define BLDCFG_TIMING_MODE_SELECT TIMING_MODE_AUTO, so coreboot automaticaly finds optimal memory clock. I can see it coreboot log:
MemClkFreq: 333 MHz; MemClkFreq changed: 333 MHz -> 400 MHz; MemClkFreq changed: 400 MHz -> 533 MHz; MemClkFreq changed: 533 MHz -> 667 MHz; MemClkFreq changed: 667 MHz -> 800 MHz
----- Original Message ----- From: "WANG Siyuan" wangsiyuanbuaa@gmail.com To: "Константин Аладышев" aladyshev@nicevt.ru Cc: coreboot@coreboot.org Sent: Thursday, January 24, 2013 1:03 PM Subject: Re: [coreboot] RAM speed problem on Supermicro H8QGI (Family 15h)
Hi, Константин Did you try to change BLDCFG_MEMORY_BUS_FREQUENCY_LIMIT and BLDCFG_MEMORY_CLOCK_SELECT in src/mainboard/supermicro/h8qgi/buildOpts.c ? BLDCFG_USE_HT_ASSIST can't be set as TRUE on h8qgi now. I am sorry but I don't know how to debug this issue.