Refine the detection of AMD family 10h processors with working

sensors.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@5814 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -28,7 +28,7 @@ SVN-HEAD
                   The SMSC LPC47M233 isn't currently supported
                   Support upcoming sysfs path to i2c adapters
                   Rename the modprobe configuration file to lm_sensors.conf
-                  Only report AMD Family 10h CPU with model > 2
+                  Only report AMD Family 10h CPU with working sensors
                   Add detection for AMD Family 11h thermal sensors
                   Add detection for Intel Atom thermal sensors
                   Add detection for National Semiconductor LM73

prog/detect/sensors-detect

@@ -5396,10 +5396,13 @@ sub fam10h_pci_detect
 		next unless $probecpu->{vendor_id} eq 'AuthenticAMD' &&
 			    $probecpu->{'cpu family'} == 0x10;
 
-		next if $probecpu->{model} == 2;	# DR-B*
-		next if $probecpu->{model} == 4 &&
-			$probecpu->{stepping} <= 2;	# RB-C2
+		next if $probecpu->{model} < 4;		# DR-B*
 		next if $probecpu->{model} == 8;	# HY-D0
+		if ($probecpu->{model} == 4) {		# RB-C*
+			my @dram_cfg = split /\n/, `setpci -d 1022:1202 94.L 2>/dev/null`;
+			next unless @dram_cfg >= 1;
+			next unless hex($dram_cfg[0]) & 0x00000100;	# DDR3
+		}
 
 		return 9;
 	}