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Add SPD support for onboard ThinkPad T480S RAM

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Patchset 20 from:

https://review.coreboot.org/c/coreboot/+/83274/18..20

Updated to that. A bunch of changes I made locally have been
copied here, thus removed from lbmk.

The previous setup in lbmk was to have only the DIMM slot work,
on the ThinkPad T480S, without setting up SPD for the onboard RAM>

Mate Kukri reverse engineered the scheme by which the SPDs are
chosen at boot, based on the wiring of the board. This should
just about match the way Lenovo did it in their firmware.

Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2024-12-02 16:32:15 +00:00
parent 046529abd9
commit b95a411a36
11 changed files with 809 additions and 306 deletions
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config/coreboot/next/patches/0001-soc-intel-skylake-configure-usb-acpi.patch
+2 -2
View File
@@ -1,7 +1,7 @@
From b7b4f05005bfe46fc5ce67ae1f04d225e35cbd4d Mon Sep 17 00:00:00 2001
From 18b68185f44599cf6ea6a20816bf6a5eb7aeda17 Mon Sep 17 00:00:00 2001
From: Felix Singer <felixsinger@posteo.net>
Date: Wed, 26 Jun 2024 04:24:31 +0200
Subject: [PATCH 1/9] soc/intel/skylake: configure usb acpi
Subject: [PATCH 1/8] soc/intel/skylake: configure usb acpi
Change-Id: I53fc73046e4b107064fa8c3c617ba6d9b807b71d
Signed-off-by: Felix Singer <felixsinger@posteo.net>