#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Protocol/FdtClient.h>

Macros
#define	RTC_INDEX_REG_OFFSET 0x0ULL

#define	RTC_TARGET_REG_OFFSET 0x1ULL

Functions
STATIC EFI_STATUS	KvmtoolRtcMapMemory (IN EFI_HANDLE ImageHandle, IN EFI_PHYSICAL_ADDRESS RtcPageBase)

EFI_STATUS EFIAPI	KvmtoolRtcFdtClientLibConstructor (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Detailed Description

FDT client library for motorola,mc146818 RTC driver

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file KvmtoolRtcFdtClientLib.c.

Macro Definition Documentation

◆ RTC_INDEX_REG_OFFSET

#define RTC_INDEX_REG_OFFSET 0x0ULL

RTC Index register is at offset 0x0

Definition at line 19 of file KvmtoolRtcFdtClientLib.c.

◆ RTC_TARGET_REG_OFFSET

#define RTC_TARGET_REG_OFFSET 0x1ULL

RTC Target register is at offset 0x1

Definition at line 23 of file KvmtoolRtcFdtClientLib.c.

Function Documentation

◆ KvmtoolRtcFdtClientLibConstructor()

EFI_STATUS EFIAPI KvmtoolRtcFdtClientLibConstructor	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Entrypoint for KvmtoolRtcFdtClientLib.

Locate the RTC node in the DT and update the Index and Target register base addresses in the respective PCDs. Add the RTC memory region to the memory map. Disable the RTC node as the RTC is owned by UEFI.

Parameters

[in]	ImageHandle	The handle to the image.
[in]	SystemTable	Pointer to the System Table.

Return values

EFI_SUCCESS	Success.
EFI_INVALID_PARAMETER	A parameter is invalid.
EFI_NOT_FOUND	Flash device not found.

Definition at line 120 of file KvmtoolRtcFdtClientLib.c.

◆ KvmtoolRtcMapMemory()

STATIC EFI_STATUS KvmtoolRtcMapMemory	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_PHYSICAL_ADDRESS	RtcPageBase
	)

Add the RTC controller address range to the memory map.