26 lines
		
	
	
		
			499 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			26 lines
		
	
	
		
			499 B
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
| /*
 | |
|  * Copyright (C) 2004-2006 Atmel Corporation
 | |
|  *
 | |
|  * This program is free software; you can redistribute it and/or modify
 | |
|  * it under the terms of the GNU General Public License version 2 as
 | |
|  * published by the Free Software Foundation.
 | |
|  */
 | |
| 
 | |
| #include <linux/linkage.h>
 | |
| #include <asm/page.h>
 | |
| 
 | |
| /*
 | |
|  * clear_page
 | |
|  * r12: P1 address (to)
 | |
|  */
 | |
| 	.text
 | |
| 	.global clear_page
 | |
| clear_page:
 | |
| 	sub	r9, r12, -PAGE_SIZE
 | |
| 	mov     r10, 0
 | |
| 	mov	r11, 0
 | |
| 0:      st.d    r12++, r10
 | |
| 	cp      r12, r9
 | |
| 	brne	0b
 | |
| 	mov     pc, lr
 |