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authorTimothy Pearson <tpearson@raptorengineeringinc.com>2016-05-07 17:26:40 -0500
committerTimothy Pearson <tpearson@raptorengineeringinc.com>2016-05-09 20:44:11 +0200
commit84da72c988955c7bdeccf889b1f682582a428752 (patch)
treef3bf0fa44f57e04b6301ef3d48029703829c2d50 /src/northbridge/amd/amdmct
parent251ce85b585b75c90d80b4ae3d0ecd0769afba8a (diff)
downloadcoreboot-84da72c988955c7bdeccf889b1f682582a428752.tar.xz
nb/amd/mct_ddr3: Report correct DIMM size in SMBIOS structure
The existing DIMM size calculation for DDR3 was incorrect. Use the recommended calculation from the DDR3 SPD specification. Change-Id: Id6a39e2b38b5d9f483341ebef8f2960ae52bda6c Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: https://review.coreboot.org/14739 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/northbridge/amd/amdmct')
-rw-r--r--src/northbridge/amd/amdmct/mct_ddr3/mct_d.c2
-rw-r--r--src/northbridge/amd/amdmct/mct_ddr3/mct_d.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index 1e1ef188c8..4fa7e66ae3 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -5706,6 +5706,8 @@ static u8 DIMMPresence_D(struct MCTStatStruc *pMCTstat,
pDCTstat->DimmRanks[i] = ((pDCTstat->spd_data.spd_bytes[i][SPD_Organization] & 0x38) >> 3) + 1;
pDCTstat->DimmBanks[i] = 1ULL << (((pDCTstat->spd_data.spd_bytes[i][SPD_Density] & 0x70) >> 4) + 3);
pDCTstat->DimmWidth[i] = 1ULL << ((pDCTstat->spd_data.spd_bytes[i][SPD_BusWidth] & 0x7) + 3);
+ pDCTstat->DimmChipSize[i] = 1ULL << ((pDCTstat->spd_data.spd_bytes[i][SPD_Density] & 0xf) + 28);
+ pDCTstat->DimmChipWidth[i] = 1ULL << ((pDCTstat->spd_data.spd_bytes[i][SPD_Organization] & 0x7) + 2);
}
/* Check supported voltage(s) */
pDCTstat->DimmSupportedVoltages[i] = pDCTstat->spd_data.spd_bytes[i][SPD_Voltage] & 0x7;
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h
index a5a3d88044..e1d9da53fb 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h
@@ -621,6 +621,8 @@ struct DCTStatStruc { /* A per Node structure*/
uint8_t DimmRanks[MAX_DIMMS_SUPPORTED];
uint8_t DimmBanks[MAX_DIMMS_SUPPORTED];
uint8_t DimmWidth[MAX_DIMMS_SUPPORTED];
+ uint64_t DimmChipSize[MAX_DIMMS_SUPPORTED];
+ uint32_t DimmChipWidth[MAX_DIMMS_SUPPORTED];
uint8_t DimmRegistered[MAX_DIMMS_SUPPORTED];
uint8_t DimmLoadReduced[MAX_DIMMS_SUPPORTED];