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This patch fixes an edge case for K8 raminit. Specifically, it brings the code 

in line with the K10 code.

I was trying to use DDR2 800 (CL6) memory on an m57sli, but booting failed.
Marc Jones found this bug (thanks!), which fixes booting with this specific
memory. For the record, it was Crucial CT2KIT25664AA800.

I put the machine through a few days of use. It also succesfully passed a run
of http://people.redhat.com/dledford/memtest.shtml:

  $ ./memtest
  TEST_DIR:               /tmp
  SOURCE_FILE:            linux-2.6.29.1.tar.bz2
  NR_PASSES:              20
  MEGS_PER_COPY:          270
  NR_COPIES:              45
  PARALLEL:               no
  COMPRESS_RATIO:         5
  COMPRESS_FLAG:          j
  COMPRESS_PROG:          /bin/bzip2
  EXTRACT:                yes

  Creating comparison source...done.
  Starting test pass #1: unpacking, comparing, removing, done.
  Starting test pass #2: unpacking, comparing, removing, done.
  Starting test pass #3: unpacking, comparing, removing, done.
  Starting test pass #4: unpacking, comparing, removing, done.
  Starting test pass #5: unpacking, comparing, removing, done.
  Starting test pass #6: unpacking, comparing, removing, done.
  Starting test pass #7: unpacking, comparing, removing, done.
  Starting test pass #8: unpacking, comparing, removing, done.
  Starting test pass #9: unpacking, comparing, removing, done.
  Starting test pass #10: unpacking, comparing, removing, done.
  Starting test pass #11: unpacking, comparing, removing, done.
  Starting test pass #12: unpacking, comparing, removing, done.
  Starting test pass #13: unpacking, comparing, removing, done.
  Starting test pass #14: unpacking, comparing, removing, done.
  Starting test pass #15: unpacking, comparing, removing, done.
  Starting test pass #16: unpacking, comparing, removing, done.
  Starting test pass #17: unpacking, comparing, removing, done.
  Starting test pass #18: unpacking, comparing, removing, done.
  Starting test pass #19: unpacking, comparing, removing, done.
  Starting test pass #20: unpacking, comparing, removing, done.

Signed-off-by: Ward Vandewege <ward@gnu.org>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4094 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Ward Vandewege 2009-04-11 18:09:03 +00:00
parent ebdc7c7cfe
commit a3ec56c17a
1 changed files with 2 additions and 1 deletions
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3
src/northbridge/amd/amdk8/raminit_f.c
View File

@ -2071,7 +2071,8 @@ static int update_dimm_TT_1_4(const struct mem_controller *ctrl, const struct me
}
if (clocks > TT_MAX) {
return 0;
printk_info("warning spd byte : %x = %x > TT_MAX: %x, setting TT_MAX", SPD_TT, value, TT_MAX);
clocks = TT_MAX;
}
dtl = pci_read_config32(ctrl->f2, TT_REG);