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-rw-r--r--src/cpu/intel/model_206ax/model_206ax.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/cpu/intel/model_206ax/model_206ax.h b/src/cpu/intel/model_206ax/model_206ax.h
index b6e2d65e96..195ef15810 100644
--- a/src/cpu/intel/model_206ax/model_206ax.h
+++ b/src/cpu/intel/model_206ax/model_206ax.h
@@ -6,6 +6,30 @@
#include <arch/cpu.h>
#include <stdint.h>
+/* SandyBridge CPU stepping */
+#define SNB_STEP_D0 5 /* Also J0 */
+#define SNB_STEP_D1 6
+#define SNB_STEP_D2 7 /* Also J1/Q0 */
+
+/* IvyBridge CPU stepping */
+#define IVB_STEP_A0 0
+#define IVB_STEP_B0 2
+#define IVB_STEP_C0 4
+#define IVB_STEP_K0 5
+#define IVB_STEP_D0 6
+
+#define IS_SANDY_CPU(x) ((x & 0xffff0) == 0x206a0)
+#define IS_SANDY_CPU_C(x) ((x & 0xf) == 4)
+#define IS_SANDY_CPU_D0(x) ((x & 0xf) == 5)
+#define IS_SANDY_CPU_D1(x) ((x & 0xf) == 6)
+#define IS_SANDY_CPU_D2(x) ((x & 0xf) == 7)
+
+#define IS_IVY_CPU(x) ((x & 0xffff0) == 0x306a0)
+#define IS_IVY_CPU_C(x) ((x & 0xf) == 4)
+#define IS_IVY_CPU_K(x) ((x & 0xf) == 5)
+#define IS_IVY_CPU_D(x) ((x & 0xf) == 6)
+#define IS_IVY_CPU_E(x) ((x & 0xf) >= 8)
+
/* SandyBridge/IvyBridge bus clock is fixed at 100MHz */
#define SANDYBRIDGE_BCLK 100