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-rw-r--r--src/northbridge/amd/amdmct/mct_ddr3/mct_d.c4
-rw-r--r--src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c201
2 files changed, 198 insertions, 7 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
index 033f07b808..c3c397677e 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c
@@ -903,8 +903,8 @@ static uint32_t fam15h_output_driver_compensation_code(struct DCTStatStruc *pDCT
}
} else if (MaxDimmsInstallable == 3) {
/* TODO
- * 3 DIMM/channel support unimplemented
- */
+ * 3 DIMM/channel support unimplemented
+ */
}
} else if (pDCTstat->Status & (1 << SB_LoadReduced)) {
/* LRDIMM */
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
index 3b53b110bb..3300716232 100644
--- a/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
+++ b/src/northbridge/amd/amdmct/mct_ddr3/mctsdi.c
@@ -38,6 +38,10 @@ static uint8_t fam15_rttwr(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t d
uint8_t frequency_index;
uint8_t rank_count = pDCTstat->DimmRanks[(dimm * 2) + dct];
+ uint8_t rank_count_dimm0;
+ uint8_t rank_count_dimm1;
+ uint8_t rank_count_dimm2;
+
if (is_fam15h())
frequency_index = Get_NB32_DCT(pDCTstat->dev_dct, dct, 0x94) & 0x1f;
else
@@ -50,11 +54,80 @@ static uint8_t fam15_rttwr(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t d
uint8_t MaxDimmsInstallable = 2;
if (is_fam15h()) {
- if (pDCTstat->Status & (1 << SB_Registered)) {
+ if (pDCTstat->Status & (1 << SB_LoadReduced)) {
/* TODO
- * RDIMM unimplemented
+ * LRDIMM unimplemented
*/
+ } else if (pDCTstat->Status & (1 << SB_Registered)) {
+ /* RDIMM */
+ if (package_type == PT_GR) {
+ /* Socket G34: Fam15h BKDG v3.14 Table 57 */
+ if (MaxDimmsInstallable == 1) {
+ if ((frequency_index == 0x4) || (frequency_index == 0x6)
+ || (frequency_index == 0xa) || (frequency_index == 0xe)) {
+ /* DDR3-667 - DDR3-1333 */
+ if (rank_count < 3)
+ term = 0x0;
+ else
+ term = 0x2;
+ } else {
+ /* DDR3-1600 */
+ term = 0x0;
+ }
+ } else if (MaxDimmsInstallable == 2) {
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
+
+ if ((frequency_index == 0x4) || (frequency_index == 0x6)) {
+ /* DDR3-667 - DDR3-800 */
+ if ((number_of_dimms == 1) && ((rank_count_dimm0 < 4)
+ && (rank_count_dimm1 < 4)))
+ term = 0x0;
+ else
+ term = 0x2;
+ } else if (frequency_index == 0xa) {
+ /* DDR3-1066 */
+ if (number_of_dimms == 1) {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4))
+ term = 0x0;
+ else
+ term = 0x2;
+ } else {
+ term = 0x1;
+ }
+ } else if (frequency_index == 0xe) {
+ /* DDR3-1333 */
+ term = 0x2;
+ } else {
+ /* DDR3-1600 */
+ if (number_of_dimms == 1)
+ term = 0x0;
+ else
+ term = 0x1;
+ }
+ } else if (MaxDimmsInstallable == 3) {
+ rank_count_dimm2 = pDCTstat->DimmRanks[(2 * 2) + dct];
+
+ if ((frequency_index == 0xa) || (frequency_index == 0xe)) {
+ /* DDR3-1066 - DDR3-1333 */
+ if (rank_count_dimm2 < 4)
+ term = 0x1;
+ else
+ term = 0x2;
+ } else if (frequency_index == 0x12) {
+ /* DDR3-1600 */
+ term = 0x1;
+ } else {
+ term = 0x2;
+ }
+ }
+ } else {
+ /* TODO
+ * Other sockets unimplemented
+ */
+ }
} else {
+ /* UDIMM */
if (package_type == PT_GR) {
/* Socket G34: Fam15h BKDG v3.14 Table 56 */
if (MaxDimmsInstallable == 1) {
@@ -99,6 +172,9 @@ static uint8_t fam15_rttnom(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t
uint8_t number_of_dimms = pDCTstat->MAdimms[dct];
uint8_t frequency_index;
+ uint8_t rank_count_dimm0;
+ uint8_t rank_count_dimm1;
+
if (is_fam15h())
frequency_index = Get_NB32_DCT(pDCTstat->dev_dct, dct, 0x94) & 0x1f;
else
@@ -116,10 +192,125 @@ static uint8_t fam15_rttnom(struct DCTStatStruc *pDCTstat, uint8_t dct, uint8_t
* LRDIMM unimplemented
*/
} else if (pDCTstat->Status & (1 << SB_Registered)) {
- /* TODO
- * RDIMM unimplemented
- */
+ /* RDIMM */
+ if (package_type == PT_GR) {
+ /* Socket G34: Fam15h BKDG v3.14 Table 57 */
+ if (MaxDimmsInstallable == 1) {
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+
+ if ((frequency_index == 0x4) || (frequency_index == 0x6)) {
+ /* DDR3-667 - DDR3-800 */
+ if (rank_count_dimm0 < 4) {
+ term = 0x2;
+ } else {
+ if (!rank)
+ term = 0x2;
+ else
+ term = 0x0;
+ }
+ } else if (frequency_index == 0xa) {
+ /* DDR3-1066 */
+ term = 0x1;
+ } else if (frequency_index == 0xe) {
+ /* DDR3-1333 */
+ if (rank_count_dimm0 < 4) {
+ term = 0x1;
+ } else {
+ if (!rank)
+ term = 0x3;
+ else
+ term = 0x0;
+ }
+ } else {
+ term = 0x3;
+ }
+ } else if (MaxDimmsInstallable == 2) {
+ rank_count_dimm0 = pDCTstat->DimmRanks[(0 * 2) + dct];
+ rank_count_dimm1 = pDCTstat->DimmRanks[(1 * 2) + dct];
+
+ if ((frequency_index == 0x4) || (frequency_index == 0x6)) {
+ /* DDR3-667 - DDR3-800 */
+ if (number_of_dimms == 1) {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4))
+ term = 0x2;
+ else if (rank)
+ term = 0x0;
+ else
+ term = 0x2;
+ } else {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4)) {
+ term = 0x3;
+ } else {
+ if (rank_count_dimm0 == 4) {
+ if (rank_count_dimm1 == 1)
+ term = 0x5;
+ else
+ term = 0x1;
+ } else if (rank_count_dimm1 == 4) {
+ if (rank_count_dimm0 == 1)
+ term = 0x5;
+ else
+ term = 0x1;
+ }
+ if (rank)
+ term = 0x0;
+ }
+ }
+ } else if (frequency_index == 0xa) {
+ /* DDR3-1066 */
+ if (number_of_dimms == 1) {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4))
+ term = 0x1;
+ else if (rank)
+ term = 0x0;
+ else
+ term = 0x1;
+ } else {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4)) {
+ term = 0x3;
+ } else {
+ if (rank_count_dimm0 == 4) {
+ if (rank_count_dimm1 == 1)
+ term = 0x5;
+ else
+ term = 0x1;
+ } else if (rank_count_dimm1 == 4) {
+ if (rank_count_dimm0 == 1)
+ term = 0x5;
+ else
+ term = 0x1;
+ }
+ if (rank)
+ term = 0x0;
+ }
+ }
+ } else if (frequency_index == 0xe) {
+ /* DDR3-1333 */
+ if (number_of_dimms == 1) {
+ if ((rank_count_dimm0 < 4) && (rank_count_dimm1 < 4))
+ term = 0x1;
+ else if (rank)
+ term = 0x0;
+ else
+ term = 0x3;
+ } else {
+ term = 0x5;
+ }
+ } else {
+ /* DDR3-1600 */
+ if (number_of_dimms == 1)
+ term = 0x3;
+ else
+ term = 0x4;
+ }
+ } else if (MaxDimmsInstallable == 3) {
+ /* TODO
+ * 3 DIMM/channel support unimplemented
+ */
+ }
+ }
} else {
+ /* UDIMM */
if (package_type == PT_GR) {
/* Socket G34: Fam15h BKDG v3.14 Table 56 */
if (MaxDimmsInstallable == 1) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 21:27:31 +0000