hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models

Document the Atom series D2000 and N2000 (Cedar Trail) as being supported.
List and set TjMax for those series.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp
index f6aed44..71d83d2 100644 (file)
--- a/Documentation/hwmon/coretemp
+++ b/Documentation/hwmon/coretemp
@@ -7,7 +7,8 @@ Supported chips:
     CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm),
                               0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm),
                               0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield),
-                              0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom)
+                              0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom),
+                              0x36 (Cedar Trail Atom)
     Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
                Volume 3A: System Programming Guide
                http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
@@ -68,6 +69,8 @@ Process               Processor                                       TjMax(C)
 
 32nm           Atom Processors
                Z2460                                           90
+               D2700/2550/2500                                 100
+               N2850/2800/2650/2600                            100
 
 45nm           Xeon Processors 5400 Quad-Core
                X5492, X5482, X5472, X5470, X5460, X5450        85

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 495add5..42c2f43 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -224,6 +224,9 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id,
                        tjmax = 90000;
 
                pci_dev_put(host_bridge);
+       } else if (c->x86_model == 0x36) {
+               usemsr_ee = 0;
+               tjmax = 100000;
        }
 
        if (c->x86_model > 0xe && usemsr_ee) {