soc/intel/apollolake: clarify meaning of LPDDR4 density meaning

The 'dram density' is a misnomer because the memory initialization
code treats that input parameter as a per rank density. Therefore,
update the variables to further clarify how it's actually being
used.

BUG=chrome-os-partner:55446

Change-Id: Ie4c944f35b531812205ac0bb1c70f39ac401495e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15773
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/soc/intel/apollolake/include/soc/meminit.h b/src/soc/intel/apollolake/include/soc/meminit.h
index b619b95642..a7da1ac2bd 100644
--- a/src/soc/intel/apollolake/include/soc/meminit.h
+++ b/src/soc/intel/apollolake/include/soc/meminit.h
@@ -92,13 +92,13 @@ void meminit_lpddr4(struct FSP_M_CONFIG *cfg, int speed);
  * to the memory reference code.
  */
 void meminit_lpddr4_enable_channel(struct FSP_M_CONFIG *cfg, int logical_chan,
-					int device_density, int dual_rank,
+					int rank_density, int dual_rank,
 					const struct lpddr4_swizzle_cfg *scfg);
 
 struct lpddr4_sku {
 	int speed;
-	int ch0_density;
-	int ch1_density;
+	int ch0_rank_density;
+	int ch1_rank_density;
 	int ch0_dual_rank;
 	int ch1_dual_rank;
 };