diff options
author | Jean Delvare <jdelvare@suse.de> | 2017-12-05 07:45:17 +0100 |
---|---|---|
committer | Jean Delvare <jdelvare@suse.de> | 2017-12-05 07:45:17 +0100 |
commit | 9ae51c4a4f8e1e1836470ac7e5fec9c7f6df8ce6 (patch) | |
tree | 6a8e6aaa8f866cdbdefca4e50f59086dae90e774 | |
parent | 56149a6f847933aa6c51392bfe9d513cbc0e443d (diff) | |
download | i2c-tools-9ae51c4a4f8e1e1836470ac7e5fec9c7f6df8ce6.tar.gz |
decode-dimms: Decode misc parameters of DDR4
Print some additional information for DDR4 SDRAM memory modules.
-rw-r--r-- | CHANGES | 1 | ||||
-rwxr-xr-x | eeprom/decode-dimms | 29 |
2 files changed, 30 insertions, 0 deletions
@@ -5,6 +5,7 @@ master tools: Fix potential buffer overflows in i2cbusses decode-dimms: Add preliminary DDR4 support Decode size and timings of DDR4 + Decode misc parameters of DDR4 4.0 (2017-10-30) tools: Fix build with recent compilers (gcc 4.6+) diff --git a/eeprom/decode-dimms b/eeprom/decode-dimms index dc193c1..2779ae4 100755 --- a/eeprom/decode-dimms +++ b/eeprom/decode-dimms @@ -1886,6 +1886,35 @@ sub decode_ddr4_sdram($) printl_cond($twtr, "Minimum Write to Read Time (tWTR_S)", tns3($twtr)); $twtr = ((($bytes->[43] & 0xf0) << 4) + $bytes->[45]) * $mtb / 1000; printl_cond($twtr, "Minimum Write to Read Time (tWTR_L)", tns3($twtr)); + +# miscellaneous stuff + prints("Other Information"); + + my $package_type = ($bytes->[6] & 0x80) == 0x00 ? "Monolithic" : + $signal_loading == 0x01 ? "Multi-load stack" : + $signal_loading == 0x02 ? "3DS" : "Unknown"; + $package_type .= sprintf(" (%u dies)", $die_count) if $die_count >= 2; + printl("Package Type", $package_type); + + my @mac = ("Untested", + "700 K", "600 K", "500 K", "400 K", "300 K", "200 K", + undef, "Unlimited"); + my $mac = $bytes->[7] & 0x0f; + printl_cond(defined $mac[$mac], "Maximum Activate Count", $mac[$mac]); + + my $ppr = $bytes->[9] >> 6; + printl("Post Package Repair", + $ppr == 0x00 ? "Not supported" : + $ppr == 0x01 ? "One row per bank group" : "Unknown"); + printl_cond($ppr != 0x00, "Soft PPR", $bytes->[9] & 0x20 ? + "Supported" : "Not Supported"); + + printl("Module Nominal Voltage", + $bytes->[11] & 0x01 ? "1.2 V" : + $bytes->[11] & 0x02 ? "Unknown (1.2 V endurant)" : "Unknown"); + + printl("Thermal Sensor", + $bytes->[14] & 0x80 ? "TSE2004 compliant" : "No"); } # Parameter: EEPROM bytes 0-127 (using 4-5) |