From 501890705f0fa3e8d9250c88dfda3d2c5a68ba5e Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Sat, 13 Apr 2013 16:27:15 +0000
Subject: [PATCH] DDR3: Round core timings up, not down.

git-svn-id: http://lm-sensors.org/svn/i2c-tools/trunk@6130 7894878c-1315-0410-8ee3-d5d059ff63e0
---
 CHANGES             | 1 +
 eeprom/decode-dimms | 8 ++++----
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/CHANGES b/CHANGES
index 3d9295b..5939e76 100644
--- a/CHANGES
+++ b/CHANGES
@@ -25,6 +25,7 @@ SVN HEAD
                 Prevent hang on reserved DDR3 module type
                 Decode more DDR3 module types
                 Fix DDR3 tRAS decoding
+                Fix DDR3 core timings rounding
   i2cdetect: Do a best effort detection if functionality is missing
              Clarify the SMBus commands used for probing by default
   i2c-dev.h: Minimize differences with kernel flavor
diff --git a/eeprom/decode-dimms b/eeprom/decode-dimms
index ed8181b..7473b3a 100755
--- a/eeprom/decode-dimms
+++ b/eeprom/decode-dimms
@@ -1390,10 +1390,10 @@ sub decode_ddr3_sdram($)
 	my $trp;
 	my $tras;
 
-	$taa  = int($bytes->[16] / $bytes->[12]);
-	$trcd = int($bytes->[18] / $bytes->[12]);
-	$trp  = int($bytes->[20] / $bytes->[12]);
-	$tras = int(((($bytes->[21] & 0x0f) << 8) + $bytes->[22]) / $bytes->[12]);
+	$taa  = ceil($bytes->[16] / $bytes->[12]);
+	$trcd = ceil($bytes->[18] / $bytes->[12]);
+	$trp  = ceil($bytes->[20] / $bytes->[12]);
+	$tras = ceil(((($bytes->[21] & 0x0f) << 8) + $bytes->[22]) / $bytes->[12]);
 
 	printl("tCL-tRCD-tRP-tRAS", join("-", $taa, $trcd, $trp, $tras));