arch/unicore32/include/mach/ocd.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * linux/arch/unicore32/include/mach/ocd.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 */

#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