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

;/** @file
;  ResetSystemLib implementation using PSCI calls
;
;  Copyright (c) 2018, Linaro Ltd. All rights reserved.<BR>
;
;  SPDX-License-Identifier: BSD-2-Clause-Patent
;
;**/

  INCLUDE AsmMacroExport.inc
  PRESERVE8

  IMPORT ArmDisableMmu

RVCT_ASM_EXPORT DisableMmuAndReenterPei
  push  {lr}

  bl    ArmDisableMmu

  ; no memory accesses after MMU and caches have been disabled

  mov32 r0, FixedPcdGet64 (PcdFvBaseAddress)
  blx   r0

  ; never returns
  nop

  END
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 AsmMacroExport.inc
	11	PRESERVE8
	12
	13	IMPORT ArmDisableMmu
	14
	15	RVCT_ASM_EXPORT DisableMmuAndReenterPei
	16	push {lr}
	17
	18	bl ArmDisableMmu
	19
	20	; no memory accesses after MMU and caches have been disabled
	21
	22	mov32 r0, FixedPcdGet64 (PcdFvBaseAddress)
	23	blx r0
	24
	25	; never returns
	26	nop
	27
	28	END