tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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