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authorShelley Chen <shchen@google.com>2023-12-26 11:01:31 -0800
committerShelley Chen <shchen@google.com>2023-12-28 00:08:13 +0000
commit00a9bc68feeb068e141c182c281824a0ee038d43 (patch)
treeeae5f1cfc239185ff2d77d8635e8e9f49c8d5f1e /src/mainboard/google
parentb6dfcb7d1848a5731a5e3bf732fcfdf07d4ed00a (diff)
mb/google/brox: Add new GFX devices
Add GFX devices for DDI (eDP and HDMI) and TCP (USC C0 and C2 ports). Copied the PLD placements from USB PLDs. BUG=b:300690448 BRANCH=None TEST=emerge-brox coreboot Change-Id: Ic39916819f64ede1c80eccfd05ba4916b9f285af Signed-off-by: Shelley Chen <shchen@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79731 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>
Diffstat (limited to 'src/mainboard/google')
-rw-r--r--src/mainboard/google/brox/variants/brox/overridetree.cb23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/mainboard/google/brox/variants/brox/overridetree.cb b/src/mainboard/google/brox/variants/brox/overridetree.cb
index d7fc83ab78..c9767bc358 100644
--- a/src/mainboard/google/brox/variants/brox/overridetree.cb
+++ b/src/mainboard/google/brox/variants/brox/overridetree.cb
@@ -1,5 +1,28 @@
chip soc/intel/alderlake
device domain 0 on
+ device ref igpu on
+ chip drivers/gfx/generic
+ register "device_count" = "6"
+ # DDIA for eDP
+ register "device[0].name" = ""LCD""
+ # DDIB for HDMI
+ # If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB
+ register "device[1].name" = ""DD01""
+ # TCP0 (DP-1) for port C0
+ register "device[2].name" = ""DD02""
+ register "device[2].use_pld" = "true"
+ register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))"
+ # TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1
+ register "device[3].name" = ""DD03""
+ # TCP2 (DP-3) for port C2
+ register "device[4].name" = ""DD04""
+ register "device[4].use_pld" = "true"
+ register "device[4].pld" = "ACPI_PLD_TYPE_C(LEFT, RIGHT, ACPI_PLD_GROUP(2, 1))"
+ # TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3
+ register "device[5].name" = ""DD05""
+ device generic 0 on end
+ end
+ end # Integrated Graphics Device
device ref pch_espi on
chip ec/google/chromeec
use conn0 as mux_conn[0]