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| author | Francois Cartegnie <fcvlcdev@free.fr> | 2019-06-14 12:55:18 +0000 |
|---|---|---|
| committer | Jean Delvare <jdelvare@suse.de> | 2019-06-19 17:26:17 +0200 |
| commit | 5df0e20136ea75e44c087d7fe774225296f5a23e (patch) | |
| tree | 75828bae193a428472afa80e9fab40015645c8ea | |
| parent | 78edfefbcc7990958e48568d5c2f67cb7c9d835b (diff) | |
| download | i2c-tools-git-5df0e20136ea75e44c087d7fe774225296f5a23e.tar.gz | |
decode-dimms: display MAC from DDR3 SPD
JEDEC Standard No. 21-C, Annex K, Release 6
Byte 41 is specified, the lower part containing
the MAC value, identical as DDR4.
| -rwxr-xr-x | eeprom/decode-dimms | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/eeprom/decode-dimms b/eeprom/decode-dimms index b976442..9cbb751 100755 --- a/eeprom/decode-dimms +++ b/eeprom/decode-dimms @@ -1735,6 +1735,12 @@ sub decode_ddr3_sdram($) ($bytes->[32] & 128) ? "Yes" : "No"); printl("SDRAM Device Type", ddr3_device_type($bytes->[33])); + my @mac = ("Untested", + "700 K", "600 K", "500 K", "400 K", "300 K", "200 K", + undef, "Unlimited"); + my $mac = $bytes->[41] & 0x0f; + printl_cond(defined $mac[$mac], "Maximum Activate Count (MAC)", $mac[$mac]); + # Following bytes are type-specific, so don't continue if type # isn't known. return if $bytes->[3] == 0 || $bytes->[3] > $#module_types; |