[mirror_edk2.git] / ArmPkg / Library / ArmSmcPsciResetSystemLib / Arm / Reset.S

/** @file
  ResetSystemLib implementation using PSCI calls

  Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>

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

**/

#include <AsmMacroIoLib.h>

ASM_FUNC(DisableMmuAndReenterPei)
  push  {lr}

  bl    ArmDisableMmu

  // no memory accesses after MMU and caches have been disabled

  MOV32 (r0, FixedPcdGet64 (PcdFvBaseAddress))
  blx   r0

  // never returns
  nop
Commit	Line	Data
6556224e AB	1	/** @file
	2	ResetSystemLib implementation using PSCI calls
	3
	4	Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>
	5
4059386c	6	SPDX-License-Identifier: BSD-2-Clause-Patent
6556224e AB	7
	8	**/
	9
	10	#include <AsmMacroIoLib.h>
	11
	12	ASM_FUNC(DisableMmuAndReenterPei)
	13	push {lr}
	14
	15	bl ArmDisableMmu
	16
	17	// no memory accesses after MMU and caches have been disabled
	18
	19	MOV32 (r0, FixedPcdGet64 (PcdFvBaseAddress))
	20	blx r0
	21
	22	// never returns
	23	nop