nb/intel/sandybridge/raminit: Improve readability

Add debug messages for SPD probing.

Change-Id: I722102b7981781b88cdc4877f698294eb719ff32
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/21638
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c
index 2854a2b..bdba748 100644
--- a/src/northbridge/intel/sandybridge/raminit.c
+++ b/src/northbridge/intel/sandybridge/raminit.c
@@ -209,6 +209,9 @@
 		/* count dimms on channel */
 		for (slot = 0; slot < NUM_SLOTS; slot++) {
 			spd_slot = 2 * channel + slot;
+			printk(BIOS_DEBUG,
+			       "SPD probe channel%d, slot%d\n", channel, slot);
+
 			spd_decode_ddr3(&dimm->dimm[channel][slot], spd[spd_slot]);
 			if (dimm->dimm[channel][slot].dram_type == SPD_MEMORY_TYPE_SDRAM_DDR3)
 				dimms_on_channel++;
@@ -216,6 +219,9 @@
 
 		for (slot = 0; slot < NUM_SLOTS; slot++) {
 			spd_slot = 2 * channel + slot;
+			printk(BIOS_DEBUG,
+			       "SPD probe channel%d, slot%d\n", channel, slot);
+
 			/* search for XMP profile */
 			spd_xmp_decode_ddr3(&dimm->dimm[channel][slot],
 					spd[spd_slot],