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https://github.com/lm-sensors/lm-sensors
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(Phil) Fixed some bugs in src/eeprom.c and added more stuff
to /prog/eeprom/decode-dimms.pl git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@94 7894878c-1315-0410-8ee3-d5d059ff63e0
This commit is contained in:
Philip Edelbrock
@@ -40,7 +40,7 @@ DECODE_DIMMS.PL
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---------------
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This Perl script attempts to make sense of the first 128 bytes of a SDRAM
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DIMM. Using the 'Serial Presence Detect (SPD)' Spec (Rev1.2a)** from
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PC-100 DIMM. Using the 'Serial Presence Detect (SPD)' Spec (Rev1.2a)** from
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Intel. When finished, it will decode and report all the values defined in
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the spec. Much of the information is technical timing and interfacing info
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(probably not all used by the Bios or clocking IC.
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@@ -77,7 +77,7 @@ which may not be the case.
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------------------------------------------------------------------------
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** PDF is available from Intel or our web site:
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** PDF is available from Intel or our web site (spdsd12a.pdf):
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http://www.netroedge.com/~lm78
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"eeprom" doc created Dec. 14, 1998 by Philip Edelbrock
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@@ -106,7 +106,9 @@ static ctl_table eeprom_dir_table_template[] = {
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL6, "data80-95", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL7, "data96-127", NULL, 0, 0644, NULL, &sensors_proc_real,
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{ EEPROM_SYSCTL7, "data96-111", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL8, "data112-127", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ 0 }
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};
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@@ -310,6 +312,7 @@ void eeprom_contents(struct i2c_client *client, int operation, int ctl_name,
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if (ctl_name == EEPROM_SYSCTL5){ base=64; }
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if (ctl_name == EEPROM_SYSCTL6){ base=80; }
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if (ctl_name == EEPROM_SYSCTL7){ base=96; }
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if (ctl_name == EEPROM_SYSCTL8){ base=112; }
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if (operation == SENSORS_PROC_REAL_INFO)
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*nrels_mag = 0;
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@@ -194,5 +194,6 @@ struct sensors_chips_data {
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#define EEPROM_SYSCTL5 1004
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#define EEPROM_SYSCTL6 1005
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#define EEPROM_SYSCTL7 1006
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#define EEPROM_SYSCTL8 1007
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#endif /* def SENSORS_SENSORS_H */
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@@ -2,7 +2,7 @@
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#
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# Copyright 1998, Philip Edelbrock <phil@netroedge.com>
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#
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# Version 0.2
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# Version 0.3
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#
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# EEPROM data decoding for SDRAM DIMM modules.
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#
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@@ -10,12 +10,17 @@
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# and Perl is at /usr/bin/perl
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#
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#
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# Reference: PC SDRAM Serial Presence
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# References:
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# PC SDRAM Serial Presence
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# Detect (SPD) Specification, Intel,
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# Dec '97, Rev 1.2A
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#
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#
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# Jedec Standards 4.1.x & 4.5.x
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# http://www.jedec.org
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#
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print "SDRAM Serial Presence Detect Tester/Decoder\n";
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print "PC-100 DIMM Serial Presence Detect Tester/Decoder\n";
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print "Written by Philip Edelbrock. Copyright 1998.\n";
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print "Version 0.2\n\n";
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@@ -26,6 +31,7 @@ $_=`ls /proc/sys/dev/sensors/`;
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for $i ( 0 .. $#dimm_list ) {
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$_=$dimm_list[$i];
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if (/^eeprom-/) {
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$dimm_checksum=0;
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$dimm_count=$dimm_count + 1;
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print "\nDecoding EEPROM: /proc/sys/dev/sensors/$dimm_list[$i]\n";
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@@ -38,6 +44,8 @@ for $i ( 0 .. $#dimm_list ) {
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data0-15`;
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@bytes=split(" ");
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for $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; }
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print "\t# of bytes written to SDRAM EEPROM:\t\t$bytes[0]\n";
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print "\tTotal number of bytes in EEPROM:\t\t";
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@@ -123,6 +131,7 @@ for $i ( 0 .. $#dimm_list ) {
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# Decode next 16 bytes
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data16-31`;
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@bytes=split(" ");
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for $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; }
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print "\tBurst lengths supported:\t\t\t";
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$temp="";
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@@ -265,6 +274,9 @@ for $i ( 0 .. $#dimm_list ) {
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# Decode next 16 bytes (32-47)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data32-47`;
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@bytes=split(" ");
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for $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; }
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print "\t\t----=== The Following are Proposed and Apply to SDRAM DIMMs ===----\n";
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print "\tCommand and Address Signal Setup Time:\t\t";
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if ($bytes[0] > 127) { $temp=($bytes[0]-128)>>4; $temp2=-1; } else { $temp=$bytes[0]>>4; $temp2=1;}
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@@ -287,7 +299,67 @@ for $i ( 0 .. $#dimm_list ) {
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print "nS\n";
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# That's it for the lower part of an SDRAM EEPROM's memory!
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# Decode next 16 bytes (48-63)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data48-63`;
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@bytes=split(" ");
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for $j ( 0 .. 14 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; }
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print "\tSPD Revision code:\t\t\t\t$bytes[14]\n";
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print "\tEEPROM Checksum of bytes 0-62:\t\t\t";
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printf("0x%.4X (verses calculated: 0x%.4X)\n",$bytes[15],$dimm_checksum);
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# Decode next 16 bytes (64-79)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data64-79`;
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@bytes=split(" ");
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print "\tManufacturer's JEDEC ID Code:\t\t\t";
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printf("0x%.4X%.4X%.4X%.4X%.4X%.4X%.4X%.4X\n",$bytes[0],$bytes[1],$bytes[2],$bytes[3],$bytes[4],$bytes[5],$bytes[6],$bytes[7]);
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print "\tManufacturing Location Code:\t\t\t";
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printf("0x%.4X\n",$bytes[8]);
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print "\tManufacurer's Part Number:\t\t\t\"";
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# Decode next 16 bytes (80-95)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data80-95`;
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@bytes2=split(" ");
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print pack("cccccccccccccccccc",$bytes[9],$bytes[10],$bytes[11],$bytes[12],$bytes[13],$bytes[14],$bytes[15],
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$bytes2[0],$bytes2[1],$bytes2[2],$bytes2[3],$bytes2[4],$bytes2[5],$bytes2[6],$bytes2[7],$bytes2[8],$bytes2[9]);
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print "\"\n";
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print "\tRevision Code:\t\t\t\t\t";
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printf("0x%.4X%.4X\n",$bytes2[10],$bytes2[11]);
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print "\tManufacturing Date:\t\t\t\t";
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printf("0x%.4X%.4X\n",$bytes2[12],$bytes2[13]);
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print "\tAssembly Serial Number:\t\t\t\t";
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# Decode next 16 bytes (96-111)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data96-111`;
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@bytes=split(" ");
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printf("0x%.4X%.4X%.4X%.4X\n",$bytes2[15],$bytes[0],$bytes[1],$bytes[2]);
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# Decode next 16 bytes (112-127)
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$_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/data112-127`;
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@bytes=split(" ");
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print "\tIntel Specification for Frequency:\t\t";
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if ($bytes[14] == 102) { print "66MHz\n"; } elsif ($bytes[14] == 100) { print "100MHz\n"; } else { print "Undefined!\n"; }
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print "\tIntel Spec Details for 100MHz Support:\t\t";
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$temp="";
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if (($bytes[15] & 1) > 0) { print "${temp}Intel Concurrent AutoPrecharge\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 2) > 0) { print "${temp}CAS Latency = 2\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 4) > 0) { print "${temp}CAS Latency = 3\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 8) > 0) { print "${temp}Junction Temp A (90 degrees C)\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 8) == 0) { print "${temp}Junction Temp B (100 degrees C)\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 16) > 0) { print "${temp}CLK 3 Connected\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 32) > 0) { print "${temp}CLK 2 Connected\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 64) > 0) { print "${temp}CLK 1 Connected\n"; $temp="\t\t\t\t\t\t\t";}
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if (($bytes[15] & 128) > 0) { print "${temp}CLK 0 Connected\n"; $temp="\t\t\t\t\t\t\t";}
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if ($bytes[15] > 175) { print "${temp}Double Sided DIMM\n"; $temp="\t\t\t\t\t\t\t";
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} else {print "${temp}Single Sided DIMM\n"; $temp="\t\t\t\t\t\t\t";}
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}
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}
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print "\n\nNumber of SDRAM DIMMs detected and decoded: $dimm_count\n";
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@@ -106,7 +106,9 @@ static ctl_table eeprom_dir_table_template[] = {
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL6, "data80-95", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL7, "data96-127", NULL, 0, 0644, NULL, &sensors_proc_real,
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{ EEPROM_SYSCTL7, "data96-111", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ EEPROM_SYSCTL8, "data112-127", NULL, 0, 0644, NULL, &sensors_proc_real,
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&sensors_sysctl_real, NULL, &eeprom_contents },
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{ 0 }
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};
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@@ -310,6 +312,7 @@ void eeprom_contents(struct i2c_client *client, int operation, int ctl_name,
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if (ctl_name == EEPROM_SYSCTL5){ base=64; }
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if (ctl_name == EEPROM_SYSCTL6){ base=80; }
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if (ctl_name == EEPROM_SYSCTL7){ base=96; }
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if (ctl_name == EEPROM_SYSCTL8){ base=112; }
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if (operation == SENSORS_PROC_REAL_INFO)
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*nrels_mag = 0;
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@@ -194,5 +194,6 @@ struct sensors_chips_data {
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#define EEPROM_SYSCTL5 1004
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#define EEPROM_SYSCTL6 1005
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#define EEPROM_SYSCTL7 1006
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#define EEPROM_SYSCTL8 1007
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#endif /* def SENSORS_SENSORS_H */
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