MdeModulePkg/PciBus: Shadow option ROM after BARs are programmed

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / PciBusDxe / PciOptionRomSupport.c

diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
index c2be85a906af289ce694dc5f2114ce6d6be007a4..aa314474dd7715510af211b2f6b31ae57da1e9c9 100644 (file)
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
@@ -583,23 +583,10 @@ RomDecode (
   )\r
 {\r
   UINT32              Value32;\r
-  UINT32              Offset;\r
-  UINT32              OffsetMax;\r
   EFI_PCI_IO_PROTOCOL *PciIo;\r
 \r
   PciIo = &PciDevice->PciIo;\r
   if (Enable) {\r
-    //\r
-    // Clear all bars\r
-    //\r
-    OffsetMax = 0x24;\r
-    if (IS_PCI_BRIDGE(&PciDevice->Pci)) {\r
-      OffsetMax = 0x14;\r
-    }\r
-\r
-    for (Offset = 0x10; Offset <= OffsetMax; Offset += sizeof (UINT32)) {\r
-      PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, Offset, 1, &gAllZero);\r
-    }\r
 \r
     //\r
     // set the Rom base address: now is hardcode\r