From cb42f4d467846f4b7e0b1dd5ce5f32c4c33e2ff9 Mon Sep 17 00:00:00 2001 From: Paul Fagerburg Date: Fri, 26 Apr 2019 13:29:29 -0600 Subject: soc/intel/cannonlake: Modify dq_map to provide for 6 entries Intel's DQ_DQS_RComp_Info_Utility generates data for 6 entries. MRC will return errors if we don't have all 6 entries in the map. BRANCH=none BUG=b:131103736 TEST=ensure the firmware builds without error; I don't have hardware available to test this just yet. Change-Id: I20a768de0e4440d7dde7b717794c4e2d0c62819c Signed-off-by: Paul Fagerburg Reviewed-on: https://review.coreboot.org/c/coreboot/+/32475 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh --- src/soc/intel/cannonlake/include/soc/cnl_memcfg_init.h | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'src/soc/intel') diff --git a/src/soc/intel/cannonlake/include/soc/cnl_memcfg_init.h b/src/soc/intel/cannonlake/include/soc/cnl_memcfg_init.h index c602180592..e602a33f78 100644 --- a/src/soc/intel/cannonlake/include/soc/cnl_memcfg_init.h +++ b/src/soc/intel/cannonlake/include/soc/cnl_memcfg_init.h @@ -52,17 +52,19 @@ struct spd_info { /* Board-specific memory dq mapping information */ struct cnl_mb_cfg { /* - * For each channel, there are 3 sets of DQ byte mappings, + * For each channel, there are 6 sets of DQ byte mappings, * where each set has a package 0 and a package 1 value (package 0 * represents the first 64-bit lpddr4 chip combination, and package 1 * represents the second 64-bit lpddr4 chip combination). * The first three sets are for CLK, CMD, and CTL. - * The fsp package actually expects 6 sets, but the last 3 sets are - * not used in CNL, so we only define the three sets that are used - * and let the meminit_lpddr4() routine take care of clearing the + * The fsp package actually expects 6 sets, even though the last 3 sets + * are not used in CNL. + * We let the meminit_lpddr4() routine take care of clearing the * unused fields for the caller. + * Note that dq_map is only used by LPDDR; it does not need to be + * initialized for designs using DDR4. */ - uint8_t dq_map[DDR_NUM_CHANNELS][3][DDR_NUM_PACKAGES]; + uint8_t dq_map[DDR_NUM_CHANNELS][6][DDR_NUM_PACKAGES]; /* * DQS CPU<>DRAM map Ch0 and Ch1. Each array entry represents a @@ -70,6 +72,8 @@ struct cnl_mb_cfg { * the memory part. The array index represents the dqs bit number * on the memory part, and the values in the array represent which * pin on the CPU that DRAM pin connects to. + * dqs_map is only used by LPDDR; same comments apply as for dq_map + * above. */ uint8_t dqs_map[DDR_NUM_CHANNELS][DQ_BITS_PER_DQS]; -- cgit v1.2.3