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util/spd_tools: Update LP5X support for ADL/RPL/MTL

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This updates the SPD utility and generated SPDs for LP5X to use memory
type code 0x15 (LPDDR5X) instead of 0x13 (LPDDR5). This is done based on
Intel Tech Advisory Doc ID #616599 dated May 2022, page 15.

SPDs were regenerated with:
  "util/spd_tools/bin/spd_gen spd/lp5/memory_parts.json lp5"

This only affects the SPDs for 2 memory parts for Intel SoCs and the
only board referencing these is rex.

BUG=b:242765117
TEST=inspected SPD hex dump

Change-Id: Iadb4688f1cb4265dab1dc7c242f0c301d5498b83
Signed-off-by: Caveh Jalali <caveh@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67265
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
This commit is contained in:
Caveh Jalali
2022-08-31 16:53:59 -07:00
committed by Martin L Roth
parent 9f1588c26d
commit c762e231da
3 changed files with 6 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
spd/lp5/set-0/spd-7.hex
View File

@@ -1,4 +1,4 @@
23 10 13 0E 16 22 95 08 00 00 00 00 02 01 00 00
23 10 15 0E 16 22 95 08 00 00 00 00 02 01 00 00
00 00 09 00 00 00 00 00 AB 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

2
spd/lp5/set-0/spd-8.hex
View File

@@ -1,4 +1,4 @@
23 10 13 0E 16 22 B5 08 00 00 00 00 0A 01 00 00
23 10 15 0E 16 22 B5 08 00 00 00 00 0A 01 00 00
00 00 09 00 00 00 00 00 AB 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

17
util/spd_tools/src/spd_gen/lp5.go
View File

@@ -72,7 +72,6 @@ type LP5Set struct {
otherOptionalFeatures byte
busWidthEncoding byte
speedToTCKMinPs map[int]int
lp5xOverrideType byte
}
/* ------------------------------------------------------------------------------------------ */
@@ -214,12 +213,6 @@ var LP5SetInfo = map[int]LP5Set{
6400 : 1250, /* 1 / (6400 / 2 / 4) */
5500 : 1455, /* 1 / (5500 / 2 / 4) */
},
/*
* Intel FSP code doesn't distinguish between LP5/5X, existing
* SPDs have been using 0x13 for both types.
*/
lp5xOverrideType: LP5SPDValueMemoryType,
},
1: {
SPDRevision: LP5SPDValueRevision1_1,
@@ -245,8 +238,6 @@ var LP5SetInfo = map[int]LP5Set{
* Set to 0x02.
*/
busWidthEncoding: 0x02,
lp5xOverrideType: LP5XSPDValueMemoryType,
},
}
@@ -473,12 +464,12 @@ func LP5GetBankGroups(memAttribs *LP5MemAttributes) int {
}
func LP5EncodeMemoryType(memAttribs *LP5MemAttributes) byte {
var b byte = LP5SPDValueMemoryType
var b byte
if memAttribs.LP5X {
if f, ok := LP5SetInfo[LP5CurrSet]; ok {
b = f.lp5xOverrideType
}
b = LP5XSPDValueMemoryType
} else {
b = LP5SPDValueMemoryType
}
return b
}