[edk2-devel] [PATCH v1] MinPlatformPkg: Add PCD PcdMinPciBridgePC00 to support \_SB.PCI0 and \_SB.PC00

[Chen, Aryeh]

From: Aryeh Chen <aryeh.chen at intel.com>

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=4329

To add PCD PcdMinPciBridgePC00 to support \_SB.PCI0 and \_SB.PC00
on MinDsdt.asl because PciBridge has modified from \_SB.PCI0 to
\_SB.PC00 since Client ADL platform.

Signed-off-by: Aryeh Chen <aryeh.chen at intel.com>
Cc: Chasel Chiu <chasel.chiu at intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
Cc: Isaac Oram <isaac.w.oram at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Cc: Eric Dong <eric.dong at intel.com>
---
 Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.asl | 4 ++++
 Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.inf | 1 +
 Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec       | 3 +++
 3 files changed, 8 insertions(+)

diff --git a/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.asl b/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.asl
index 4efb8709ac..b7361b6d44 100644
--- a/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.asl
+++ b/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.asl
@@ -23,7 +23,11 @@ DefinitionBlock (
   //---------------------------------------------------------------------------
   // Begin PCI tree object scope
   //---------------------------------------------------------------------------
+#if FixedPcdGetBool (PcdMinPciBridgePC00) == 1
+    Device(PC00) { // PCI Bridge "Host Bridge"
+#else
     Device(PCI0) { // PCI Bridge "Host Bridge"
+#endif
       Name(_HID, EISAID("PNP0A08")) // Indicates PCI Express/PCI-X Mode2 host hierarchy
       Name(_CID, EISAID("PNP0A03")) // To support legacy OS that doesn't understand the new HID
       Name(_SEG, 0)
diff --git a/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.inf b/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.inf
index 3437bc489c..b3b45039cc 100644
--- a/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.inf
+++ b/Platform/Intel/MinPlatformPkg/Acpi/MinDsdt/MinDsdt.inf
@@ -40,6 +40,7 @@
 [Pcd]
   gMinPlatformPkgTokenSpaceGuid.PcdPciReservedMemBase
   gMinPlatformPkgTokenSpaceGuid.PcdPciReservedMemLimit
+  gMinPlatformPkgTokenSpaceGuid.PcdMinPciBridgePC00
 
 [Depex]
   gEfiAcpiTableProtocolGuid           AND
diff --git a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
index e6f714b181..68a76db4de 100644
--- a/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
+++ b/Platform/Intel/MinPlatformPkg/MinPlatformPkg.dec
@@ -139,6 +139,9 @@
   gMinPlatformPkgTokenSpaceGuid.PcdAcpiXGpe1BlkRegisterBitWidth|0x00|UINT8|0x00010056
   gMinPlatformPkgTokenSpaceGuid.PcdAcpiS4BiosReq|0x0000|UINT8|0x00010055
 
+  # The PCD controls MinDsdt PciBridge
+  gMinPlatformPkgTokenSpaceGuid.PcdMinPciBridgePC00|FALSE|BOOLEAN|0x00010057
+
   #
   # FADT Duty Offset - The zero-based index of where the processor's duty cycle
   # setting is within the processor's P_CNT register.
-- 
2.26.2.windows.1



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