cleanl2.s

freescale i.mx31 BSP CE5.0全部源码

;
; Copyright (c) Microsoft Corporation.  All rights reserved.
;
;
; Use of this source code is subject to the terms of the Microsoft end-user
; license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
; If you did not accept the terms of the EULA, you are not authorized to use
; this source code. For a copy of the EULA, please see the LICENSE.RTF on your
; install media.
;
;-------------------------------------------------------------------------------
;
;  File: cleanl2.s
;
;  This file implements L2 cache cleaning for the Freescale ARM1136 CPU.
;
;-------------------------------------------------------------------------------
        INCLUDE kxarm.h
        INCLUDE armmacros.s
        INCLUDE oal_cache.inc

L2CC_SYNC_OFFSET            EQU     0x730

        IMPORT g_pL2CC

        TEXTAREA

;-------------------------------------------------------------------------------
;
;  Function:  OALCleanL2Cache
;
        LEAF_ENTRY OALCleanL2Cache

        ldr     r1, =g_pL2CC
        ldr     r1, [r1]
        
        ; Since we configure the L2 for write-through mode, we only need to
        ; perform a L2 cache sync.

        ldr     r0, =0x0
        str     r0, [r1, #L2CC_SYNC_OFFSET]

        RETURN

        END

;-------------------------------------------------------------------------------