www.pudn.com > S2410_eboot.rar > UTIL.S

; 
; 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. 
; 
;****************************************************************************** 
;* 
;* System On Chip(SOC) 
;* 
;* Copyright (c) 2002 Software Center, Samsung Electronics, Inc. 
;* All rights reserved. 
;* 
;* This software is the confidential and proprietary information of Samsung  
;* Electronics, Inc("Confidential Information"). You Shall not disclose such  
;* Confidential Information and shall use it only in accordance with the terms  
;* of the license agreement you entered into Samsung. 
;* 
;*----------------------------------------------------------------------------- 
;* 
;*  S3C2410 BSP (WinCE3.0 & PocketPC2002) 
;* 
;* util.s :     EBoot Utility Srcs for S3C2410 Board 
;* 
;* @author  zartoven@samsung.com (SOC, SWC, SAMSUNG Electronics) 
;* 
;* @date    2002/04/08 
;*  
;* Log: 
;*      2002/04/08  Start 
;*       
;****************************************************************************** 
 
    INCLUDE kxarm.h 
 
PHY_RAM_START   EQU 0x30000000 
VIR_RAM_START   EQU 0x8c000000 
 
    TEXTAREA 
 
    LEAF_ENTRY Launch 
 
    ldr r2, = PhysicalStart 
    ldr     r3, = (VIR_RAM_START - PHY_RAM_START) 
 
    sub     r2, r2, r3 
 
    mov     r1, #0x0070             ; Disable MMU 
    mcr     p15, 0, r1, c1, c0, 0 
    nop 
    mov     pc, r2                  ; Jump to PStart 
    nop 
 
    ; MMU & caches now disabled. 
 
PhysicalStart 
 
    mov     r2, #0 
    mcr     p15, 0, r2, c8, c7, 0   ; Flush the TLB 
    mov     pc, r0          ; Jump to program we are launching. 
 
    ;++ 
    ;  Routine: 
    ; 
    ;      ShowLights 
    ; 
    ;  Description: 
    ; 
    ;      Set the Hexadecimal LED array to the values specified 
    ; 
    ;  Arguments: 
    ; 
    ;      r0 = word containing 8 nibble values to write to the Hexadecimal LED 
    ;       
    ; 
    ;-- 
 
    LEAF_ENTRY ShowLights 
 
    mov pc, lr 
 
    END