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OvmfPkg: extract the PBMA used in AcpiTimerLib into a PCD 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13719 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten 2012-09-12 07:18:35 +00:00
parent 67164dcd2e
commit 830067bfa2
3 changed files with 12 additions and 1 deletions
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5
OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.c
View File

@ -20,11 +20,12 @@
#include <Library/IoLib.h>
#include <Library/PciLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
//
// PIIX4 Power Management Base Address
//
UINT32 mPmba = 0xb000;
STATIC UINT32 mPmba;
#define PCI_BAR_IO 0x1
#define ACPI_TIMER_FREQUENCY 3579545
@ -56,6 +57,8 @@ AcpiTimerLibConstructor (
ASSERT (mPmba & PCI_BAR_IO);
mPmba &= ~PCI_BAR_IO;
} else {
mPmba = PcdGet16 (PcdAcpiPmBaseAddress);
PciAndThenOr32 (PCI_LIB_ADDRESS (0,Device,3,0x40),
(UINT32) ~0xfc0, mPmba);
PciOr8 (PCI_LIB_ADDRESS (0,Device,3,0x04), 0x01);

4
OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf
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@ -33,6 +33,10 @@
[Packages]
MdePkg/MdePkg.dec
OvmfPkg/OvmfPkg.dec
[Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdAcpiPmBaseAddress
[LibraryClasses]
BaseLib

4
OvmfPkg/OvmfPkg.dec
View File

@ -49,6 +49,10 @@
## This flag is used to control the destination port for PlatformDebugLibIoPort
gUefiOvmfPkgTokenSpaceGuid.PcdDebugIoPort|0x402|UINT16|4
## This flag determines the Power Management Base Address of choice, written
# to PIIX4 function 3 offset 0x40-0x43 bits [15:6].
gUefiOvmfPkgTokenSpaceGuid.PcdAcpiPmBaseAddress|0xB000|UINT16|5
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2