From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean Delvare Subject: [PATCH 2/6] DDR3: Fix core timings rounding Date: Wed, 10 Apr 2013 22:18:32 +0200 Message-ID: <20130410221832.34f38cd2@endymion.delvare> References: <20130410221330.213ca5be@endymion.delvare> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20130410221330.213ca5be-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linux I2C List-Id: linux-i2c@vger.kernel.org DDR3: Round core timings up, not down. --- eeprom/decode-dimms | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- i2c-tools.orig/eeprom/decode-dimms 2013-04-10 14:29:35.349802212 +0200 +++ i2c-tools/eeprom/decode-dimms 2013-04-10 14:30:19.753833437 +0200 @@ -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)); -- Jean Delvare