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authorKeith Hui <buurin@gmail.com>2010-03-17 02:15:07 +0000
committerStefan Reinauer <stepan@openbios.org>2010-03-17 02:15:07 +0000
commitb48ba6625b4028a12ddf22ec660922a8dc51113a (patch)
treea49fd88c6fa78f1f7c8d191bb1d5cfe7e159aeff /src/mainboard/supermicro/x6dhr_ig2
parentd4ab7c5efbe3e8bc398dd541465bbfc5efe37035 (diff)
From Keith Hui:
This patch implements a full SDRAM buffer strength programming algorithm in set_dram_buffer_strength(), checked against my P2B-LS factory BIOS. With this in place, I now have 133MHz (!) stability with three 256MB PC133 modules, and can boot Fedora 11 all the way to the init daemon (actually upstart, but that's another story). Not to login prompt yet. We'll find out why later. This again assumes a 4-DIMM board because that's all I have. I need someone with a 3-DIMM board to test it. As a bonus, there's a big comment block within that illustrates the algorithm. :-) Signed-off-by: Keith Hui <buurin@gmail.com> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5238 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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