DDR3: Don't print the medium and fine time bases, they aren't directly
useful to the user. Simply store them for later use.
---
eeprom/decode-dimms | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
--- i2c-tools.orig/eeprom/decode-dimms 2013-04-10 14:30:19.753833437 +0200
+++ i2c-tools/eeprom/decode-dimms 2013-04-10 15:37:24.481817216 +0200
@@ -1335,6 +1335,7 @@ sub decode_ddr3_sdram($)
my $bytes = shift;
my $temp;
my $ctime;
+ my ($ftb, $mtb);
my @module_types = ("Undefined", "RDIMM", "UDIMM", "SO-DIMM",
"Micro-DIMM", "Mini-RDIMM", "Mini-UDIMM",
@@ -1346,18 +1347,17 @@ sub decode_ddr3_sdram($)
$module_types[$bytes->[3]] :
sprintf("Reserved (0x%.2X)",
$bytes->[3]));
+# time bases
+ if (($bytes->[9] & 0x0f) == 0 || $bytes->[11] == 0) {
+ print STDERR "Invalid time base divisor, can't decode\n";
+ return;
+ }
+ $ftb = ($bytes->[9] >> 4) / ($bytes->[9] & 0x0f);
+ $mtb = $bytes->[10] / $bytes->[11];
+
# speed
prints("Memory Characteristics");
- my $dividend = ($bytes->[9] >> 4) & 15;
- my $divisor = $bytes->[9] & 15;
- printl("Fine time base", sprintf("%.3f", $dividend / $divisor) . " ps");
-
- $dividend = $bytes->[10];
- $divisor = $bytes->[11];
- my $mtb = $dividend / $divisor;
- printl("Medium time base", tns3($mtb));
-
$ctime = $bytes->[12] * $mtb;
my $ddrclk = 2 * (1000 / $ctime);
my $tbits = 1 << (($bytes->[8] & 7) + 3);
--
Jean Delvare
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