1/*
2 * linux/arch/unicore32/include/mach/ocd.h
3 *
4 * Code specific to PKUnity SoC and UniCore ISA
5 *
6 * Copyright (C) 2001-2010 GUAN Xue-tao
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#ifndef __MACH_PUV3_OCD_H__
14#define __MACH_PUV3_OCD_H__
15
16#if defined(CONFIG_DEBUG_OCD)
17static inline void ocd_putc(unsigned int c)
18{
19	int status, i = 0x2000000;
20
21	do {
22		if (--i < 0)
23			return;
24
25		asm volatile ("movc %0, p1.c0, #0" : "=r" (status));
26	} while (status & 2);
27
28	asm("movc p1.c1, %0, #1" : : "r" (c));
29}
30
31#define putc(ch)	ocd_putc(ch)
32#else
33#define putc(ch)
34#endif
35
36#endif
37