nb/intel/sandybridge: Use cached CPUID

Now that we have it, we might as well pass it around.

Tested on Asus P8Z77-V LX2, still boots fine.

Change-Id: Ia5aa2f932321983f11d2f8869aa624832afe9347
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39721
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index 9eb60c7..41d683b 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -168,15 +168,14 @@
 
 static void dram_odt_stretch(ramctr_timing *ctrl, int channel)
 {
-	u32 addr, cpu, stretch;
+	u32 addr, stretch;
 
 	stretch = ctrl->ref_card_offset[channel];
 	/*
 	 * ODT stretch:
 	 * Delay ODT signal by stretch value. Useful for multi DIMM setups on the same channel.
 	 */
-	cpu = cpu_get_cpuid();
-	if (IS_SANDY_CPU(cpu) && IS_SANDY_CPU_C(cpu)) {
+	if (IS_SANDY_CPU(ctrl->cpu) && IS_SANDY_CPU_C(ctrl->cpu)) {
 		if (stretch == 2)
 			stretch = 3;
 
@@ -2992,10 +2991,8 @@
 	}
 }
 
-void set_wmm_behavior(void)
+void set_wmm_behavior(const u32 cpu)
 {
-	u32 cpu = cpu_get_cpuid();
-
 	if (IS_SANDY_CPU(cpu) && (IS_SANDY_CPU_D0(cpu) || IS_SANDY_CPU_D1(cpu))) {
 		MCHBAR32(SC_WDBWM) = 0x141d1519;
 	} else {