1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
From 337818cec631161582a2e65d73cf3e1f9a611bb7 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Sat, 20 Jun 2015 20:02:49 -0500
Subject: [PATCH 064/143] northbridge/amd/amdmct: Clear memory before enabling
ECC
Change-Id: I992e7040520570893ba6a213138dd57bfa14733b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 45 ++++++++----------------
src/northbridge/amd/amdmct/mct_ddr3/mctecc_d.c | 38 +++++++++++++++++++-
2 files changed, 51 insertions(+), 32 deletions(-)
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index f4859d0..d8a09f0 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -51,8 +51,6 @@ static void DCTMemClr_Init_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat);
static void DCTMemClr_Sync_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat);
-static void MCTMemClrSync_D(struct MCTStatStruc *pMCTstat,
- struct DCTStatStruc *pDCTstatA);
static u8 NodePresent_D(u8 Node);
static void SyncDCTsReady_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstatA);
@@ -1500,10 +1498,11 @@ restartinit:
InterleaveChannels_D(pMCTstat, pDCTstatA);
printk(BIOS_DEBUG, "mctAutoInitMCT_D: ECCInit_D\n");
- if (ECCInit_D(pMCTstat, pDCTstatA)) { /* Setup ECC control and ECC check-bits*/
- printk(BIOS_DEBUG, "mctAutoInitMCT_D: MCTMemClr_D\n");
- MCTMemClr_D(pMCTstat,pDCTstatA);
- }
+ ECCInit_D(pMCTstat, pDCTstatA); /* Setup ECC control and ECC check-bits*/
+
+ /* mctDoWarmResetMemClr_D(); */
+ printk(BIOS_DEBUG, "mctAutoInitMCT_D: MCTMemClr_D\n");
+ MCTMemClr_D(pMCTstat,pDCTstatA);
printk(BIOS_DEBUG, "mctAutoInitMCT_D: mct_ForceNBPState0_Dis_Fam15\n");
for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) {
@@ -2094,9 +2093,6 @@ static void DQSTiming_D(struct MCTStatStruc *pMCTstat,
/* FIXME - currently uses calculated value TrainMaxReadLatency_D(pMCTstat, pDCTstatA); */
mctHookAfterAnyTraining();
-
- /* mctDoWarmResetMemClr_D(); */
- MCTMemClr_D(pMCTstat, pDCTstatA);
}
static void LoadDQSSigTmgRegs_D(struct MCTStatStruc *pMCTstat,
@@ -2384,26 +2380,6 @@ static void DCTMemClr_Init_D(struct MCTStatStruc *pMCTstat,
}
}
-static void MCTMemClrSync_D(struct MCTStatStruc *pMCTstat,
- struct DCTStatStruc *pDCTstatA)
-{
- /* Ensures that memory clear has completed on all node.*/
- u8 Node;
- struct DCTStatStruc *pDCTstat;
-
- if (!mctGet_NVbits(NV_DQSTrainCTL)){
- /* callback to wrapper: mctDoWarmResetMemClr_D */
- } else { /* NV_DQSTrainCTL == 1 */
- for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) {
- pDCTstat = pDCTstatA + Node;
-
- if (pDCTstat->NodePresent) {
- DCTMemClr_Sync_D(pMCTstat, pDCTstat);
- }
- }
- }
-}
-
static void DCTMemClr_Sync_D(struct MCTStatStruc *pMCTstat,
struct DCTStatStruc *pDCTstat)
{
@@ -2424,9 +2400,12 @@ static void DCTMemClr_Sync_D(struct MCTStatStruc *pMCTstat,
} while (!(val & (1 << Dr_MemClrStatus)));
}
- val = 0x0FE40FC0; /* BKDG recommended */
+ if (is_fam15h())
+ val = 0x0ce00f41; /* BKDG recommended */
+ else
+ val = 0x0fe40fc0; /* BKDG recommended */
val |= MCCH_FlushWrOnStpGnt; /* Set for S3 */
- Set_NB32(dev, 0x11C, val);
+ Set_NB32(dev, 0x11c, val);
}
static u8 NodePresent_D(u8 Node)
@@ -3089,6 +3068,8 @@ static void GetPresetmaxF_D(struct MCTStatStruc *pMCTstat,
u16 proposedFreq;
u16 word;
+ printk(BIOS_DEBUG, "%s: Start\n", __func__);
+
/* Get CPU Si Revision defined limit (NPT) */
if (is_fam15h())
proposedFreq = 933;
@@ -3113,6 +3094,8 @@ static void GetPresetmaxF_D(struct MCTStatStruc *pMCTstat,
pDCTstat->PresetmaxFreq = word;
}
/* Check F3xE8[DdrMaxRate] for maximum DRAM data rate support */
+
+ printk(BIOS_DEBUG, "%s: Done\n", __func__);
}
static void SPDGetTCL_D(struct MCTStatStruc *pMCTstat,
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctecc_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mctecc_d.c
index 3a9fecc..918e91e 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mctecc_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mctecc_d.c
@@ -88,6 +88,10 @@ u8 ECCInit_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA)
u32 val;
u16 nvbits;
+ uint32_t dword;
+ uint8_t sync_flood_on_dram_err[MAX_NODES_SUPPORTED];
+ uint8_t sync_flood_on_any_uc_err[MAX_NODES_SUPPORTED];
+
mctHookBeforeECC();
/* Construct these booleans, based on setup options, for easy handling
@@ -111,6 +115,25 @@ u8 ECCInit_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA)
nvbits = mctGet_NVbits(NV_DramBKScrub);
OF_ScrubCTL |= nvbits;
+ /* Prevent lockups on DRAM errors during ECC init */
+ for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) {
+ struct DCTStatStruc *pDCTstat;
+ pDCTstat = pDCTstatA + Node;
+
+ if (NodePresent_D(Node)) {
+ dword = Get_NB32(pDCTstat->dev_nbmisc, 0x44);
+ sync_flood_on_dram_err[Node] = (dword >> 30) & 0x1;
+ sync_flood_on_any_uc_err[Node] = (dword >> 21) & 0x1;
+ dword &= ~(0x1 << 30);
+ dword &= ~(0x1 << 21);
+ Set_NB32(pDCTstat->dev_nbmisc, 0x44, dword);
+
+ /* Clear the RAM before enabling ECC to prevent MCE-related lockups */
+ DCTMemClr_Init_D(pMCTstat, pDCTstat);
+ DCTMemClr_Sync_D(pMCTstat, pDCTstat);
+ }
+ }
+
AllECC = 1;
MemClrECC = 0;
for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) {
@@ -157,7 +180,7 @@ u8 ECCInit_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA)
} /* Node has Dram */
if (MemClrECC) {
- MCTMemClrSync_D(pMCTstat, pDCTstatA);
+ DCTMemClr_Sync_D(pMCTstat, pDCTstat);
}
if (pDCTstat->LogicalCPUID & (AMD_DR_GT_D0 | AMD_FAM15_ALL)) {
@@ -170,6 +193,19 @@ u8 ECCInit_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA)
} /* if Node present */
}
+ /* Restore previous MCA error handling settings */
+ for (Node = 0; Node < MAX_NODES_SUPPORTED; Node++) {
+ struct DCTStatStruc *pDCTstat;
+ pDCTstat = pDCTstatA + Node;
+
+ if (NodePresent_D(Node)) {
+ dword = Get_NB32(pDCTstat->dev_nbmisc, 0x44);
+ dword |= (sync_flood_on_dram_err[Node] & 0x1) << 30;
+ dword |= (sync_flood_on_any_uc_err[Node] & 0x1) << 21;
+ Set_NB32(pDCTstat->dev_nbmisc, 0x44, dword);
+ }
+ }
+
if(AllECC)
pMCTstat->GStatus |= 1<<GSB_ECCDIMMs;
else
--
1.7.9.5
|
