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From 4d620e5796f863926d6926d85326091847970974 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Tue, 24 Nov 2015 14:11:47 -0600
Subject: [PATCH 08/45] northbridge/amd/amdfam10: Update DRAM speed limits for
C32 sockets
The existing code applied G34-specific speed limits to all socket
types. Update G34 and C32 specific speed limits to be in line with
BKDG recommendations.
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/northbridge/amd/amdfam10/raminit_amdmct.c | 346 +++++++++++++++++++-------
1 file changed, 259 insertions(+), 87 deletions(-)
diff --git a/src/northbridge/amd/amdfam10/raminit_amdmct.c b/src/northbridge/amd/amdfam10/raminit_amdmct.c
index a40c5a1..1407631 100644
--- a/src/northbridge/amd/amdfam10/raminit_amdmct.c
+++ b/src/northbridge/amd/amdfam10/raminit_amdmct.c
@@ -180,141 +180,313 @@ static uint16_t mct_MaxLoadFreq(uint8_t count, uint8_t highest_rank_count, uint8
}
if (is_fam15h()) {
- if (IS_ENABLED(CONFIG_DIMM_REGISTERED) && registered) {
- /* Fam15h BKDG Rev. 3.14 Table 27 */
- if (voltage & 0x4) {
- /* 1.25V */
- if (count > 1) {
- if (highest_rank_count > 1) {
- /* Limit to DDR3-1066 */
- if (freq > 533) {
- freq = 533;
- printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ if (CONFIG_CPU_SOCKET_TYPE == 0x15) {
+ /* Socket G34 */
+ if (IS_ENABLED(CONFIG_DIMM_REGISTERED) && registered) {
+ /* Fam15h BKDG Rev. 3.14 Table 27 */
+ if (voltage & 0x4) {
+ /* 1.25V */
+ if (count > 1) {
+ if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
}
} else {
/* Limit to DDR3-1333 */
if (freq > 666) {
freq = 666;
+ printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else if (voltage & 0x2) {
+ /* 1.35V */
+ if (count > 1) {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
}
+ } else {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
}
- } else {
- /* Limit to DDR3-1333 */
- if (freq > 666) {
- freq = 666;
- printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ } else if (voltage & 0x1) {
+ /* 1.50V */
+ if (count > 1) {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1866 */
+ if (freq > 933) {
+ freq = 933;
+ printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1866\n", __func__, voltage_index_to_mv(voltage));
+ }
}
}
- } else if (voltage & 0x2) {
- /* 1.35V */
- if (count > 1) {
- /* Limit to DDR3-1333 */
- if (freq > 666) {
- freq = 666;
- printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
- }
- } else {
- /* Limit to DDR3-1600 */
- if (freq > 800) {
- freq = 800;
- printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ } else {
+ /* Fam15h BKDG Rev. 3.14 Table 26 */
+ if (voltage & 0x4) {
+ /* 1.25V */
+ if (count > 1) {
+ if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
}
- }
- } else if (voltage & 0x1) {
- /* 1.50V */
- if (count > 1) {
- /* Limit to DDR3-1600 */
- if (freq > 800) {
- freq = 800;
- printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ } else if (voltage & 0x2) {
+ /* 1.35V */
+ if (MaxDimmsInstallable > 1) {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
}
- } else {
- /* Limit to DDR3-1866 */
- if (freq > 933) {
- freq = 933;
- printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1866\n", __func__, voltage_index_to_mv(voltage));
+ } else if (voltage & 0x1) {
+ if (MaxDimmsInstallable == 1) {
+ if (count > 1) {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1866 */
+ if (freq > 933) {
+ freq = 933;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1866\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
+ if (count > 1) {
+ if (highest_rank_count > 1) {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
}
}
}
- } else {
- /* Fam15h BKDG Rev. 3.14 Table 26 */
- if (voltage & 0x4) {
- /* 1.25V */
- if (count > 1) {
- if (highest_rank_count > 1) {
- /* Limit to DDR3-1066 */
- if (freq > 533) {
- freq = 533;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ } else if (CONFIG_CPU_SOCKET_TYPE == 0x14) {
+ /* Socket C32 */
+ if (IS_ENABLED(CONFIG_DIMM_REGISTERED) && registered) {
+ /* Fam15h BKDG Rev. 3.14 Table 30 */
+ if (voltage & 0x4) {
+ /* 1.25V */
+ if (count > 1) {
+ if (highest_rank_count > 2) {
+ /* Limit to DDR3-800 */
+ if (freq > 400) {
+ freq = 400;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-800\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
}
} else {
/* Limit to DDR3-1333 */
if (freq > 666) {
freq = 666;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
}
}
- } else {
- /* Limit to DDR3-1333 */
- if (freq > 666) {
- freq = 666;
- printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
- }
- }
- } else if (voltage & 0x2) {
- /* 1.35V */
- if (MaxDimmsInstallable > 1) {
- /* Limit to DDR3-1333 */
- if (freq > 666) {
- freq = 666;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
- }
- } else {
- /* Limit to DDR3-1600 */
- if (freq > 800) {
- freq = 800;
- printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
- }
- }
- } else if (voltage & 0x1) {
- if (MaxDimmsInstallable == 1) {
+ } else if (voltage & 0x2) {
+ /* 1.35V */
if (count > 1) {
+ if (highest_rank_count > 2) {
+ /* Limit to DDR3-800 */
+ if (freq > 400) {
+ freq = 400;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-800\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
/* Limit to DDR3-1600 */
if (freq > 800) {
freq = 800;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
- }
- } else {
- /* Limit to DDR3-1866 */
- if (freq > 933) {
- freq = 933;
- printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1866\n", __func__, voltage_index_to_mv(voltage));
+ printk(BIOS_DEBUG, "%s: 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
}
}
- } else {
+ } else if (voltage & 0x1) {
+ /* 1.50V */
if (count > 1) {
- if (highest_rank_count > 1) {
+ if (highest_rank_count > 2) {
+ /* Limit to DDR3-800 */
+ if (freq > 400) {
+ freq = 400;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-800\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
/* Limit to DDR3-1333 */
if (freq > 666) {
freq = 666;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
+ if (highest_rank_count > 2) {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
}
} else {
/* Limit to DDR3-1600 */
if (freq > 800) {
freq = 800;
- printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ printk(BIOS_DEBUG, "%s: More than 1 registered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ }
+ }
+ } else {
+ /* Fam15h BKDG Rev. 3.14 Table 29 */
+ if (voltage & 0x4) {
+ /* 1.25V */
+ if (count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else if (voltage & 0x2) {
+ if (count > 1) {
+ if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
}
}
} else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else if (voltage & 0x1) {
+ if (MaxDimmsInstallable == 1) {
/* Limit to DDR3-1600 */
if (freq > 800) {
freq = 800;
printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
}
+ } else {
+ if (count > 1) {
+ if (highest_rank_count > 1) {
+ /* Limit to DDR3-1066 */
+ if (freq > 533) {
+ freq = 533;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1066\n", __func__, voltage_index_to_mv(voltage));
+ }
+ } else {
+ /* Limit to DDR3-1333 */
+ if (freq > 666) {
+ freq = 666;
+ printk(BIOS_DEBUG, "%s: More than 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1333\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
+ } else {
+ /* Limit to DDR3-1600 */
+ if (freq > 800) {
+ freq = 800;
+ printk(BIOS_DEBUG, "%s: 1 unbuffered DIMM on %dmV channel; limiting to DDR3-1600\n", __func__, voltage_index_to_mv(voltage));
+ }
+ }
}
}
}
+ } else {
+ /* TODO
+ * Other socket support unimplemented
+ */
}
} else {
if (IS_ENABLED(CONFIG_DIMM_REGISTERED) && registered) {
--
2.1.4
|
