37 lines
		
	
	
	
		
			720 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			37 lines
		
	
	
	
		
			720 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
|   | /*
 | ||
|  |  * linux/arch/unicore32/include/mach/ocd.h | ||
|  |  * | ||
|  |  * Code specific to PKUnity SoC and UniCore ISA | ||
|  |  * | ||
|  |  * Copyright (C) 2001-2010 GUAN Xue-tao | ||
|  |  * | ||
|  |  * 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. | ||
|  |  */ | ||
|  | 
 | ||
|  | #ifndef __MACH_PUV3_OCD_H__
 | ||
|  | #define __MACH_PUV3_OCD_H__
 | ||
|  | 
 | ||
|  | #if defined(CONFIG_DEBUG_OCD)
 | ||
|  | static inline void ocd_putc(unsigned int c) | ||
|  | { | ||
|  | 	int status, i = 0x2000000; | ||
|  | 
 | ||
|  | 	do { | ||
|  | 		if (--i < 0) | ||
|  | 			return; | ||
|  | 
 | ||
|  | 		asm volatile ("movc %0, p1.c0, #0" : "=r" (status)); | ||
|  | 	} while (status & 2); | ||
|  | 
 | ||
|  | 	asm("movc p1.c1, %0, #1" : : "r" (c)); | ||
|  | } | ||
|  | 
 | ||
|  | #define putc(ch)	ocd_putc(ch)
 | ||
|  | #else
 | ||
|  | #define putc(ch)
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #endif
 |