You've already forked edk2-platforms
mirror of
https://github.com/Dasharo/edk2-platforms.git
synced 2026-03-06 14:51:43 -08:00
885a686bb2
The Genet driver stub used by the Raspberry Pi 4 platform is designed to set the MAC address according to a PCD. To be able to set that PCD at runtime, by using the Raspberry Pi firmware interface, that has a dedicated call to retrieve the MAC address, and satisfy driver dependencies in a generic manner, we create a new PlatformPcdLib that can be referenced by the Genet driver, to set the MAC PCD before use there. While it is currently only tailored around MAC PCD population for Genet, we do expect this PCD library to be extended in the future, to provide additional PCD facilities for other drivers. Signed-off-by: Pete Batard <pete@akeo.ie> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/** @file
|
|
*
|
|
* Copyright (c) 2020, Pete Batard <pete@akeo.ie>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
*
|
|
**/
|
|
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/PcdLib.h>
|
|
#include <Library/PrintLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include <Library/UefiLib.h>
|
|
#include <Library/UefiRuntimeServicesTableLib.h>
|
|
#include <Protocol/RpiFirmware.h>
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
PlatformPcdLibConstructor (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT64 MacAddr;
|
|
RASPBERRY_PI_FIRMWARE_PROTOCOL *mFwProtocol;
|
|
|
|
if (PcdGet64 (PcdBcmGenetMacAddress) == 0) {
|
|
Status = gBS->LocateProtocol (&gRaspberryPiFirmwareProtocolGuid, NULL,
|
|
(VOID**)&mFwProtocol);
|
|
ASSERT_EFI_ERROR(Status);
|
|
|
|
//
|
|
// Get the MAC address from the firmware
|
|
//
|
|
Status = mFwProtocol->GetMacAddress ((UINT8*) &MacAddr);
|
|
if (EFI_ERROR (Status)) {
|
|
DEBUG ((DEBUG_WARN, "%a: failed to retrieve MAC address\n", __FUNCTION__));
|
|
} else {
|
|
PcdSet64S (PcdBcmGenetMacAddress, MacAddr);
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|