util/spd_tools: Limit memory speed to 5500 Mbps for Sabrina

In Sabrina platform, memory speed is limited to 5500 Mbps. Update the
SPD generation tool to limit to that speed.

BUG=b:238074863
TEST=Build and boot to OS in Skyrim.

Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: Ie3507898167012e0d812c9b1aacba72e9055fcd8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>

spd/lp5/platforms_manifest.generated.txt

@@ -1,6 +1,6 @@
 # Generated by:
 # util/spd_tools/bin/spd_gen spd/lp5/memory_parts.json lp5
 
-ADL,set-0
 MTL,set-0
+ADL,set-0
 SBR,set-1

spd/lp5/set-1/parts_spd_manifest.generated.txt

@@ -7,8 +7,8 @@ H9JCNNNCP3MLYR-N6E,spd-2.hex
 K3LKBKB0BM-MGCP,spd-3.hex
 H9JCNNNBK3MLYR-N6E,spd-1.hex
 MT62F2G32D8DR-031 WT:B,spd-4.hex
-K3LKLKL0EM-MGCN,spd-5.hex
+K3LKLKL0EM-MGCN,spd-1.hex
 H58G56AK6BX069,spd-3.hex
 MT62F1G32D4DS-031 WT:B,spd-2.hex
-K3LKCKC0BM-MGCP,spd-6.hex
+K3LKCKC0BM-MGCP,spd-5.hex
-MT62F1G32D2DS-026 WT:B,spd-7.hex
+MT62F1G32D2DS-026 WT:B,spd-3.hex

spd/lp5/set-1/spd-1.hex

@@ -1,11 +1,11 @@
 23 11 13 0E 85 19 95 18 00 40 00 00 02 02 00 00
-00 00 03 00 00 00 00 00 2B 00 90 A8 90 90 06 C0
+00 00 03 00 00 00 00 00 2C 00 90 A8 90 90 06 C0
 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 B9 00 C1 00 00
+00 00 00 00 00 00 00 00 00 00 00 C9 00 F4 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

spd/lp5/set-1/spd-2.hex

@@ -1,11 +1,11 @@
 23 11 13 0E 85 19 B5 18 00 40 00 00 0A 02 00 00
-00 00 03 00 00 00 00 00 2B 00 90 A8 90 90 06 C0
+00 00 03 00 00 00 00 00 2C 00 90 A8 90 90 06 C0
 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 B9 00 C1 00 00
+00 00 00 00 00 00 00 00 00 00 00 C9 00 F4 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

spd/lp5/set-1/spd-3.hex

@@ -1,11 +1,11 @@
 23 11 13 0E 86 21 95 18 00 40 00 00 02 02 00 00
-00 00 03 00 00 00 00 00 2B 00 90 A8 90 C0 08 60
+00 00 03 00 00 00 00 00 2C 00 90 A8 90 C0 08 60
 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 B9 00 C1 00 00
+00 00 00 00 00 00 00 00 00 00 00 C9 00 F4 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

spd/lp5/set-1/spd-4.hex

@@ -1,11 +1,11 @@
 23 11 13 0E 85 21 F9 18 00 40 00 00 09 02 00 00
-00 00 03 00 00 00 00 00 2B 00 90 A8 90 90 06 C0
+00 00 03 00 00 00 00 00 2C 00 90 A8 90 90 06 C0
 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 B9 00 C1 00 00
+00 00 00 00 00 00 00 00 00 00 00 C9 00 F4 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

spd/lp5/set-1/spd-5.hex

@@ -1,6 +1,6 @@
-23 11 13 0E 85 19 95 18 00 40 00 00 02 02 00 00
+23 11 13 0E 86 21 B5 18 00 40 00 00 0A 02 00 00
-00 00 03 00 00 00 00 00 2C 00 90 A8 90 90 06 C0
+00 00 03 00 00 00 00 00 2C 00 90 A8 90 C0 08 60
-03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

spd/lp5/set-1/spd-6.hex

@@ -1,32 +0,0 @@
-23 11 13 0E 86 21 B5 18 00 40 00 00 0A 02 00 00
-00 00 03 00 00 00 00 00 2B 00 90 A8 90 C0 08 60
-04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 B9 00 C1 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20
-20 20 20 20 20 20 20 20 20 20 20 20 20 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

util/spd_tools/src/spd_gen/lp5.go

@@ -70,6 +70,7 @@ type LP5Set struct {
 	otherOptionalFeatures  byte
 	busWidthEncoding  byte
 	speedToTCKMinPs map[int]int
+	maxSpeedMbps int
 }
 
 /* ------------------------------------------------------------------------------------------ */
@@ -234,6 +235,8 @@ var LP5SetInfo = map[int]LP5Set{
 		 * Set to 0x02.
 		 */
 		busWidthEncoding: 0x02,
+		/* Sabrina supports max speed of 5500 MT/s */
+		maxSpeedMbps: 5500,
 	},
 }
 
@@ -637,6 +640,14 @@ func LP5EncodeTRFCPBMinLsb(memAttribs *LP5MemAttributes) byte {
 	return byte(convNsToMtb(memAttribs.TRFCPBNs) & 0xff)
 }
 
+func LP5UpdateSpeedMbps(memAttribs *LP5MemAttributes) {
+	f, ok := LP5SetInfo[LP5CurrSet]
+
+	if ok && f.maxSpeedMbps != 0 && memAttribs.SpeedMbps > f.maxSpeedMbps {
+		memAttribs.SpeedMbps = f.maxSpeedMbps
+	}
+}
+
 func LP5UpdateTCKMin(memAttribs *LP5MemAttributes) {
 	if memAttribs.TCKMinPs == 0 {
 		memAttribs.TCKMinPs = LP5GetTCKMinPs(memAttribs)
@@ -684,6 +695,7 @@ func LP5UpdateTRPPB(memAttribs *LP5MemAttributes) {
 }
 
 func lp5UpdateMemoryAttributes(memAttribs *LP5MemAttributes) {
+	LP5UpdateSpeedMbps(memAttribs)
 	LP5UpdateTCKMin(memAttribs)
 	LP5UpdateTAAMin(memAttribs)
 	LP5UpdateTRFCAB(memAttribs)