X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=ArmVirtPkg%2FVirtFdtDxe%2FVirtFdtDxe.c;h=cebd4aa91fd9e6f0af50b2af546159bfa2142e6f;hb=1e7143d81a08c18d0b684853a756362ad7f693f3;hp=31e0ca7db8b480c90bfb048f5cb23b04e756cb7c;hpb=ffea0a2ce21e8e9878587de2419959a7bfea4021;p=mirror_edk2.git

diff --git a/ArmVirtPkg/VirtFdtDxe/VirtFdtDxe.c b/ArmVirtPkg/VirtFdtDxe/VirtFdtDxe.c
index 31e0ca7db8..cebd4aa91f 100644
--- a/ArmVirtPkg/VirtFdtDxe/VirtFdtDxe.c
+++ b/ArmVirtPkg/VirtFdtDxe/VirtFdtDxe.c
@@ -28,7 +28,6 @@
 #include <libfdt.h>
 #include <Library/XenIoMmioLib.h>
 
-#include <Guid/Fdt.h>
 #include <Guid/VirtioMmioTransport.h>
 #include <Guid/FdtHob.h>
 
@@ -42,9 +41,7 @@ typedef struct {
 
 typedef enum {
   PropertyTypeUnknown,
-  PropertyTypeRtc,
   PropertyTypeVirtio,
-  PropertyTypeUart,
   PropertyTypeXen,
 } PROPERTY_TYPE;
 
@@ -54,9 +51,7 @@ typedef struct {
 } PROPERTY;
 
 STATIC CONST PROPERTY CompatibleProperties[] = {
-  { PropertyTypeRtc,     "arm,pl031"             },
   { PropertyTypeVirtio,  "virtio,mmio"           },
-  { PropertyTypeUart,    "arm,pl011"             },
   { PropertyTypeXen,     "xen,xen"               },
   { PropertyTypeUnknown, ""                      }
 };
@@ -96,7 +91,6 @@ InitializeVirtFdtDxe (
   VOID                           *Hob;
   VOID                           *DeviceTreeBase;
   INT32                          Node, Prev;
-  INT32                          RtcNode;
   EFI_STATUS                     Status;
   CONST CHAR8                    *Type;
   INT32                          Len;
@@ -119,7 +113,6 @@ InitializeVirtFdtDxe (
 
   DEBUG ((EFI_D_INFO, "%a: DTB @ 0x%p\n", __FUNCTION__, DeviceTreeBase));
 
-  RtcNode = -1;
   //
   // Now enumerate the nodes and install peripherals that we are interested in,
   // i.e., GIC, RTC and virtio MMIO nodes
@@ -196,18 +189,6 @@ InitializeVirtFdtDxe (
       }
       break;
 
-    case PropertyTypeRtc:
-      ASSERT (Len == 16);
-
-      RegBase = fdt64_to_cpu (((UINT64 *)RegProp)[0]);
-      ASSERT (RegBase < MAX_UINT32);
-
-      PcdSet32 (PcdPL031RtcBase, (UINT32)RegBase);
-
-      DEBUG ((EFI_D_INFO, "Found PL031 RTC @ 0x%Lx\n", RegBase));
-      RtcNode = Node;
-      break;
-
     case PropertyTypeXen:
       ASSERT (Len == 16);
 
@@ -233,25 +214,5 @@ InitializeVirtFdtDxe (
     }
   }
 
-  if (!FeaturePcdGet (PcdPureAcpiBoot)) {
-    //
-    // Only install the FDT as a configuration table if we want to leave it up
-    // to the OS to decide whether it prefers ACPI over DT.
-    //
-    Status = gBS->InstallConfigurationTable (&gFdtTableGuid, DeviceTreeBase);
-    ASSERT_EFI_ERROR (Status);
-
-    //
-    // UEFI takes ownership of the RTC hardware, and exposes its functionality
-    // through the UEFI Runtime Services GetTime, SetTime, etc. This means we
-    // need to disable it in the device tree to prevent the OS from attaching its
-    // device driver as well.
-    //
-    if ((RtcNode != -1) &&
-        fdt_setprop_string (DeviceTreeBase, RtcNode, "status",
-          "disabled") != 0) {
-      DEBUG ((EFI_D_WARN, "Failed to set PL031 status to 'disabled'\n"));
-    }
-  }
   return EFI_SUCCESS;
 }