I am working on a substantial rewrite of E7501's raminit.c to get it into a form that is easier to understand. I'll fix it there. But the changes may be too radical for the LB community-at-large, and probably won't be available for a few weeks.
Steve
-----Original Message----- From: Ronald G. Minnich [mailto:rminnich@lanl.gov] Sent: Tuesday, June 14, 2005 10:38 AM To: Steven J. Magnani Cc: linuxbios@openbios.org Subject: RE: [LinuxBIOS] E7501 SDRAM command bug?
On Tue, 14 Jun 2005, Steven J. Magnani wrote:
The boundaries are configured during the "sdram_set_registers" phase of setup, but (for E7501) the "sdram_set_spd_registers" phase overrides those values before the RAM commands are sent in the "sdram_enable" phase. There is evidence in the code that this was not always the case.
yes, that is a wrong sequence. boundaries should always be set LAST.
do you want to take a stab at fixing this?
ron