diff options
| author | Caveh Jalali <caveh@chromium.org> | 2022-08-31 16:53:59 -0700 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-09-07 22:19:21 +0000 |
| commit | c762e231da33aeb4fbd53b15e429121d498f7b2a (patch) | |
| tree | f2029d13edf110ab3fb60922cb595c8b3ff60c24 /util | |
| parent | 9f1588c26d3cc7760c18062d587823750c3271b9 (diff) | |
util/spd_tools: Update LP5X support for ADL/RPL/MTL
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>
Diffstat (limited to 'util')
| -rw-r--r-- | util/spd_tools/src/spd_gen/lp5.go | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/util/spd_tools/src/spd_gen/lp5.go b/util/spd_tools/src/spd_gen/lp5.go index e4655cee73..bf7b8331e1 100644 --- a/util/spd_tools/src/spd_gen/lp5.go +++ b/util/spd_tools/src/spd_gen/lp5.go @@ -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 } |