diff --git a/i2c-tools-r6106-vendors-JEP106AG.diff b/i2c-tools-r6106-vendors-JEP106AG.diff
index 5415199..efb6efb 100644
--- a/i2c-tools-r6106-vendors-JEP106AG.diff
+++ b/i2c-tools-r6106-vendors-JEP106AG.diff
@@ -1,5 +1,5 @@
 Subject: decode-dimms: Update vendor list
-Upstream: yes, r6106
+Upstream: yes, r6106, r6156
 
 Update vendor list based on Jedec document JEP106AG. Contributed by
 Thomas Gibson.
@@ -70,7 +70,7 @@ Thomas Gibson.
   "Marvell Semiconductors", "Netergy Microelectronic", "NVIDIA", "Internet Machines",
   "Peak Electronics", "Litchfield Communication", "Accton Technology", "Teradiant Networks",
 - "Europe Technologies", "Cortina Systems", "RAM Components", "Raqia Networks",
-+ "Scaleo Chip (former Europe Technlogies)", "Cortina Systems", "RAM Components", "Raqia Networks",
++ "Scaleo Chip (former Europe Technologies)", "Cortina Systems", "RAM Components", "Raqia Networks",
   "ClearSpeed", "Matsushita Battery", "Xelerated", "SimpleTech",
   "Utron Technology", "Astec International", "AVM gmbH", "Redux Communications",
   "Dot Hill Systems", "TeraChip"],
diff --git a/i2c-tools-r6151-space-before-MHz.diff b/i2c-tools-r6151-space-before-MHz.diff
new file mode 100644
index 0000000..dd76f58
--- /dev/null
+++ b/i2c-tools-r6151-space-before-MHz.diff
@@ -0,0 +1,59 @@
+Subject: decode-dimms: Print a space before "MHz" to improve readability
+Upstream: yes, r6151
+
+Print a space before "MHz" to improve readability.
+---
+ eeprom/decode-dimms |   14 +++++++-------
+ 1 file changed, 7 insertions(+), 7 deletions(-)
+
+--- a/eeprom/decode-dimms
++++ b/eeprom/decode-dimms
+@@ -842,7 +842,7 @@ sub decode_ddr_sdram($)
+ 	$pcclk += 100 if ($pcclk % 100) >= 50; # Round properly
+ 	$pcclk = $pcclk - ($pcclk % 100);
+ 	$ddrclk = int ($ddrclk);
+-	printl("Maximum module speed", "${ddrclk}MHz (PC${pcclk})");
++	printl("Maximum module speed", "$ddrclk MHz (PC${pcclk})");
+ 
+ #size computation
+ 	my $k = 0;
+@@ -1031,7 +1031,7 @@ sub decode_ddr2_sdram($)
+ 	# Round down to comply with Jedec
+ 	$pcclk = $pcclk - ($pcclk % 100);
+ 	$ddrclk = int ($ddrclk);
+-	printl("Maximum module speed", "${ddrclk}MHz (PC2-${pcclk})");
++	printl("Maximum module speed", "$ddrclk MHz (PC2-${pcclk})");
+ 
+ #size computation
+ 	my $k = 0;
+@@ -1189,7 +1189,7 @@ sub decode_ddr3_sdram($)
+ 	my $tbits = 1 << (($bytes->[8] & 7) + 3);
+ 	my $pcclk = int ($ddrclk * $tbits / 8);
+ 	$ddrclk = int ($ddrclk);
+-	printl("Maximum module speed", "${ddrclk}MHz (PC3-${pcclk})");
++	printl("Maximum module speed", "$ddrclk MHz (PC3-${pcclk})");
+ 
+ # Size computation
+ 
+@@ -1494,9 +1494,9 @@ sub decode_intel_spec_freq($)
+ 
+ 	prints("Intel Specification");
+ 
+-	if ($bytes->[126] == 0x66) { $temp = "66MHz"; }
+-	elsif ($bytes->[126] == 100) { $temp = "100MHz or 133MHz"; }
+-	elsif ($bytes->[126] == 133) { $temp = "133MHz"; }
++	if ($bytes->[126] == 0x66) { $temp = "66 MHz"; }
++	elsif ($bytes->[126] == 100) { $temp = "100 MHz or 133 MHz"; }
++	elsif ($bytes->[126] == 133) { $temp = "133 MHz"; }
+ 	else { $temp = "Undefined!"; }
+ 	printl("Frequency", $temp);
+ 
+@@ -1512,7 +1512,7 @@ sub decode_intel_spec_freq($)
+ 	if ($bytes->[127] & 128) { $temp .= "CLK 0 Connected\n"; }
+ 	if (($bytes->[127] & 192) == 192) { $temp .= "Double-sided DIMM\n"; }
+ 	elsif (($bytes->[127] & 192) != 0) { $temp .= "Single-sided DIMM\n"; }
+-	printl("Details for 100MHz Support", $temp);
++	printl("Details for 100 MHz Support", $temp);
+ }
+ 
+ # Read various hex dump style formats: hexdump, hexdump -C, i2cdump, eeprog
diff --git a/i2c-tools-r6152-fix-DDR3-tRAS-decoding.diff b/i2c-tools-r6152-fix-DDR3-tRAS-decoding.diff
new file mode 100644
index 0000000..e68b7f9
--- /dev/null
+++ b/i2c-tools-r6152-fix-DDR3-tRAS-decoding.diff
@@ -0,0 +1,19 @@
+Subject: decode-dimms: Fix DDR3 tRAS decoding
+Upstream: yes, r6152
+
+DDR3: Use the right nibble from byte 21 as the MSB of tRAS.
+---
+ eeprom/decode-dimms |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/eeprom/decode-dimms
++++ b/eeprom/decode-dimms
+@@ -1217,7 +1217,7 @@ sub decode_ddr3_sdram($)
+ 	$taa  = int($bytes->[16] / $bytes->[12]);
+ 	$trcd = int($bytes->[18] / $bytes->[12]);
+ 	$trp  = int($bytes->[20] / $bytes->[12]);
+-	$tras = int((($bytes->[21] >> 4) * 256 + $bytes->[22]) / $bytes->[12]);
++	$tras = int(((($bytes->[21] & 0x0f) << 8) + $bytes->[22]) / $bytes->[12]);
+ 
+ 	printl("tCL-tRCD-tRP-tRAS", join("-", $taa, $trcd, $trp, $tras));
+ 
diff --git a/i2c-tools-r6153-fix-DDR3-timings-rounding.diff b/i2c-tools-r6153-fix-DDR3-timings-rounding.diff
new file mode 100644
index 0000000..e746aa7
--- /dev/null
+++ b/i2c-tools-r6153-fix-DDR3-timings-rounding.diff
@@ -0,0 +1,25 @@
+Subject: decode-dimms: Fix DDR3 core timings rounding
+Upstream: yes, r6153
+
+DDR3: Round core timings up, not down.
+---
+ eeprom/decode-dimms |    8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+--- a/eeprom/decode-dimms
++++ b/eeprom/decode-dimms
+@@ -1214,10 +1214,10 @@ sub decode_ddr3_sdram($)
+ 	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, $tras));
+ 
diff --git a/i2c-tools-r6154-round-down-PC3-numbers.diff b/i2c-tools-r6154-round-down-PC3-numbers.diff
new file mode 100644
index 0000000..7b09efe
--- /dev/null
+++ b/i2c-tools-r6154-round-down-PC3-numbers.diff
@@ -0,0 +1,19 @@
+Subject: decode-dimms: Round down PC3 numbers to comply with Jedec
+Upstream: yes, r6154
+
+DDR3: Round down PC3 numbers to comply with Jedec.
+---
+ eeprom/decode-dimms |    2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/eeprom/decode-dimms
++++ b/eeprom/decode-dimms
+@@ -1188,6 +1188,8 @@ sub decode_ddr3_sdram($)
+ 	my $ddrclk = 2 * (1000 / $ctime);
+ 	my $tbits = 1 << (($bytes->[8] & 7) + 3);
+ 	my $pcclk = int ($ddrclk * $tbits / 8);
++	# Round down to comply with Jedec
++	$pcclk = $pcclk - ($pcclk % 100);
+ 	$ddrclk = int ($ddrclk);
+ 	printl("Maximum module speed", "$ddrclk MHz (PC3-${pcclk})");
+ 
diff --git a/i2c-tools-r6157-vendors-JEP106AK.diff b/i2c-tools-r6157-vendors-JEP106AK.diff
new file mode 100644
index 0000000..6144bae
--- /dev/null
+++ b/i2c-tools-r6157-vendors-JEP106AK.diff
@@ -0,0 +1,24 @@
+Subject: decode-dimms: Update vendor list
+Upstream: yes, r6157, r6160
+
+Add manufacturer names from Jedec document JEP106AK.
+---
+ eeprom/decode-dimms |    7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+--- a/eeprom/decode-dimms
++++ b/eeprom/decode-dimms
+@@ -296,7 +296,12 @@ $revision =~ s/ \([^()]*\)//;
+  "Eorex Corporation", "Xingtera", "Netsol", "Bestdon Technology Co. Ltd.", "Baysand Inc.",
+  "Uroad Technology Co. Ltd. (former Triple Grow Industrial Ltd.)", "Wilk Elektronik S.A.",
+  "AAI", "Harman", "Berg Microelectronics Inc.", "ASSIA, Inc.", "Visiontek Products LLC",
+- "OCMEMORY", "Welink Solution Inc."]
++ "OCMEMORY", "Welink Solution Inc.", "Shark Gaming", "Avalanche Technology",
++ "R&D Center ELVEES OJSC", "KingboMars Technology Co. Ltd.",
++ "High Bridge Solutions Industria Eletronica", "Transcend Technology Co. Ltd.",
++ "Everspin Technologies", "Hon-Hai Precision", "Smart Storage Systems", "Toumaz Group",
++ "Zentel Electronics Corporation", "Panram International Corporation",
++ "Silicon Space Technology"]
+ );
+ 
+ $use_sysfs = -d '/sys/bus';
diff --git a/i2c-tools.changes b/i2c-tools.changes
index 8c3f77c..d775c67 100644
--- a/i2c-tools.changes
+++ b/i2c-tools.changes
@@ -1,3 +1,18 @@
+-------------------------------------------------------------------
+Wed Apr 17 22:10:55 CEST 2013 - jdelvare@suse.de
+
+Backport fixes from upstream 3.1 branch:
+- i2c-tools-r6151-space-before-MHz.diff: Print a space before "MHz"
+  to improve readability.
+- i2c-tools-r6152-fix-DDR3-tRAS-decoding.diff: Fix DDR3 tRAS
+  decoding.
+- i2c-tools-r6153-fix-DDR3-timings-rounding.diff: Fix DDR3 core
+  timings rounding.
+- i2c-tools-r6154-round-down-PC3-numbers.diff: Round down PC3
+  numbers to comply with Jedec.
+- i2c-tools-r6157-vendors-JEP106AK.diff: Update vendor list based
+   on Jedec document JEP106AK.
+
 -------------------------------------------------------------------
 Thu Mar 28 08:53:09 UTC 2013 - mmeister@suse.com
 
diff --git a/i2c-tools.spec b/i2c-tools.spec
index 98bb6b4..0c162be 100644
--- a/i2c-tools.spec
+++ b/i2c-tools.spec
@@ -35,6 +35,11 @@ Patch5:         i2c-tools-r6109-fix-decoding-revision.diff
 Patch6:         i2c-tools-r6110-i2cdetect-clarify-probing.diff
 Patch7:         i2c-tools-r6121-typo-sprint.diff
 Patch8:         i2c-tools-r6122-more-DDR3-module-types.diff
+Patch9:         i2c-tools-r6151-space-before-MHz.diff
+Patch10:        i2c-tools-r6152-fix-DDR3-tRAS-decoding.diff
+Patch11:        i2c-tools-r6153-fix-DDR3-timings-rounding.diff
+Patch12:        i2c-tools-r6154-round-down-PC3-numbers.diff
+Patch13:        i2c-tools-r6157-vendors-JEP106AK.diff
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 ExcludeArch:    s390 s390x
 
@@ -62,6 +67,11 @@ Authors:
 %patch6 -p1
 %patch7 -p1
 %patch8 -p1
+%patch9 -p1
+%patch10 -p1
+%patch11 -p1
+%patch12 -p1
+%patch13 -p1
 
 %build
 make %{?_smp_mflags} CFLAGS="$RPM_OPT_FLAGS" CC="%{__cc}"