fec73db6cf
functions needed by the following patch. - i2c-tools-hackweek-9-improve-DDR3-support.diff: Improve DDR3 support. This was my hackweek 9 project. OBS-URL: https://build.opensuse.org/package/show/Base:System/i2c-tools?expand=0&rev=27
35 lines
837 B
Diff
35 lines
837 B
Diff
Subject: decode-dimms: Backport two functions
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Upstream: yes, r6079 (partial), r6093 (partial), r6095 (partial)
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Backport functions as_ddr() and ddr_core_timings() which are needed
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by the hackweek 9 code.
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---
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eeprom/decode-dimms | 16 ++++++++++++++++
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1 file changed, 16 insertions(+)
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--- a/eeprom/decode-dimms
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+++ b/eeprom/decode-dimms
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@@ -826,6 +826,22 @@ sub decode_sdr_sdram($)
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(($bytes->[35] >> 7) ? -$temp : $temp) . " ns");
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}
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+sub as_ddr($$)
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+{
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+ my ($gen, $ctime) = @_;
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+
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+ return " as DDR" . ($gen == 1 ? "" : $gen) . "-" .
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+ int(2000 / $ctime);
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+}
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+
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+sub ddr_core_timings($$$$$)
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+{
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+ my ($cas, $ctime, $trcd, $trp, $tras) = @_;
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+
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+ return $cas . "-" . ceil($trcd/$ctime) . "-" . ceil($trp/$ctime) .
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+ "-" . ceil($tras/$ctime);
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+}
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+
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# Parameter: EEPROM bytes 0-127 (using 3-62)
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sub decode_ddr_sdram($)
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{
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