DDR problem

[Andrew Ip]

Hi,

	I'm testing 2 DDR from Samsung on EPIA-M, M368L1713DTL-CB0 and
M368L1624DTL-CB0.  Both of them are DDR266 128MB.  The main different is
M368L1713DTL-CB0 has 8x16MB IC's and M368L1624DTL-CB0 has 4x32MB IC's.
So far, LinuxBIOS can boot flawlessly with M368L1713DTL-CB0.  However,
it fails when running ram test.  Here is the log

dump northbridge:
00: 06 11 23 31 06 00 30 02 00 00 00 06 00 00 00 00
10: 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 a0 00 00 00 00 00 00 00 00 00 00 00
40: 00 18 88 80 82 44 00 00 18 99 88 80 82 44 00 00
50: c8 de cf 88 c0 04 00 00 6c 00 08 08 10 10 00 00
60: 0a 00 00 00 e6 32 01 20 c5 25 43 58 00 44 00 00
70: 82 48 00 01 01 08 50 00 01 00 00 00 00 00 02 02
80: 00 61 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 02 c0 20 00 01 02 00 1f 00 00 00 00 00 02 00 00
b0: 00 00 00 00 80 00 00 00 68 00 00 00 00 00 00 00
c0: 01 00 02 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 01 00 40 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 03 13 00 00 00 00 00 00 00 00
Done.
Testing SDRAM : 00000000-0009ffff
SDRAM fill:
0009ffff
SDRAM verify:
00000000:00001000
00000004:00001004
00000008:00001008
0000000c:0000100c
00000010:00001010
00000014:00001014
00000018:00001018
0000001c:0000101c
00000020:00001020
00000024:00001024
00000028:00001028
0000002c:0000102c
00000030:00001030
00000034:00001034
00000038:00001038
0000003c:0000103c
Too many errors.

BTW, normal bios doesn't have this problem.  And I have also compared 
settings between regular and LinuxBIOS bios, even double check with DDR 
init sequence.  I haven't found anything strange yet.  Have any seen this 
kind of strange behavior?

-Andrew

-- 
Andrew Ip
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