[S] Change in coreboot[master]: soc/amd/picasso/acpi: use ROOT_BRIDGE macro

[Felix Held (Code Review)]

Attention is currently required from: Fred Reitberger, Jason Glenesk, Matt DeVillier.

Felix Held has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/75569?usp=email )

Change subject: soc/amd/picasso/acpi: use ROOT_BRIDGE macro
......................................................................

soc/amd/picasso/acpi: use ROOT_BRIDGE macro

Instead of having the different static parts of the PCI0 device in
northbridge.asl and sb_pci0_fch.asl, instantiate the static parts of the
PCI0 device via the ROOT_BRIDGE macro in soc.asl.

TEST=Both Ubuntu 2022.4 and Windows 10 still boot successfully and don't
show any new ACPI-related error.

Signed-off-by: Felix Held 
Change-Id: I2587d8bb270dc3edce9dfa570a5018116fc9187f
---
M src/soc/amd/picasso/acpi/northbridge.asl
M src/soc/amd/picasso/acpi/sb_pci0_fch.asl
M src/soc/amd/picasso/acpi/soc.asl
3 files changed, 5 insertions(+), 20 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/69/75569/1

diff --git a/src/soc/amd/picasso/acpi/northbridge.asl b/src/soc/amd/picasso/acpi/northbridge.asl
index 14c793e..bec9b46 100644
--- a/src/soc/amd/picasso/acpi/northbridge.asl
+++ b/src/soc/amd/picasso/acpi/northbridge.asl
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */

-/* Note: Only need HID on Primary Bus */
-Name(_HID, EISAID("PNP0A08"))	/* PCI Express Root Bridge */
-Name(_CID, EISAID("PNP0A03"))	/* PCI Root Bridge */
-
 /* Describe the Northbridge devices */

/* PCI Routing Table */
diff --git a/src/soc/amd/picasso/acpi/sb_pci0_fch.asl b/src/soc/amd/picasso/acpi/sb_pci0_fch.asl
index 898914c..ead676d 100644
--- a/src/soc/amd/picasso/acpi/sb_pci0_fch.asl
+++ b/src/soc/amd/picasso/acpi/sb_pci0_fch.asl
@@ -3,21 +3,6 @@
 /* System Bus */
 /*  _SB.PCI0 */

-/* Operating System Capabilities Method */
-Method(_OSC,4)
-{
-	/* Check for proper PCI/PCIe UUID */
-	If (Arg0 == ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))
-	{
-		/* Let OS control everything */
-		Return (Arg3)
-	} Else {
-		CreateDWordField(Arg3,0,CDW1)
-		CDW1 |= 4	// Unrecognized UUID
-		Return (Arg3)
-	}
-}
-
 /* 0:14.3 - LPC */
 #include <soc/amd/common/acpi/lpc.asl>
 #include <soc/amd/common/acpi/platform.asl>
diff --git a/src/soc/amd/picasso/acpi/soc.asl b/src/soc/amd/picasso/acpi/soc.asl
index f44f873..82c2766 100644
--- a/src/soc/amd/picasso/acpi/soc.asl
+++ b/src/soc/amd/picasso/acpi/soc.asl
@@ -1,6 +1,10 @@
 /* SPDX-License-Identifier: GPL-2.0-only */

-Device(PCI0) {
+#include <soc/amd/common/acpi/pci_root.asl>
+
+ROOT_BRIDGE(PCI0)
+
+Scope(PCI0) {
    /* Describe the AMD Northbridge */
    #include "northbridge.asl"