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authorTimothy Pearson <tpearson@raptorengineeringinc.com>2016-04-29 01:40:30 -0500
committerTimothy Pearson <tpearson@raptorengineeringinc.com>2016-05-01 00:50:47 +0200
commitac6bd5b037269a85eb67f444b81818618c88b33f (patch)
tree6da8221ec37361ce57f19ee9c13e6c500b15b09d
parent2bb1d30d69d807ee70d005b70f8ea5e9caa74fae (diff)
downloadcoreboot-ac6bd5b037269a85eb67f444b81818618c88b33f.tar.xz
nb/amd/mct_ddr3: Warn if MaxRdLatency training fails on Family 15h
Change-Id: Idb948acd1a508379f600fbd2fd40fb26b7571d7c Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> Reviewed-on: https://review.coreboot.org/14545 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Martin Roth <martinroth@google.com>
-rw-r--r--src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c b/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c
index 77ae4838cc..be956476b8 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c
@@ -1690,6 +1690,9 @@ static void dqsTrainMaxRdLatency_SW_Fam15(struct MCTStatStruc *pMCTstat,
break;
Set_NB32_index_wait_DCT(dev, Channel, index_reg, 0x00000050, 0x13131313);
}
+ dword = Get_NB32_DCT(dev, Channel, 0x268) & 0x3ffff;
+ if (dword)
+ printk(BIOS_ERR, "WARNING: MaxRdLatency training FAILED! Attempting to continue but your system may be unstable...\n");
/* 2.10.5.8.5.1.5 */
nb_pstate = 0;