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| author | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-01-15 13:22:19 +0300 |
|---|---|---|
| committer | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-03-17 04:19:12 +0300 |
| commit | 28bab059a23aac6bb129b307410e5b63e132a290 (patch) | |
| tree | 574dc1cf3a7fd6c0744e8c2a5fdc7f49e94d4733 /arch/unicore32/include/mach | |
| parent | 6dea1ba1c82013c108d235ec32c6d8bd9ff6b48d (diff) | |
| download | linux-28bab059a23aac6bb129b307410e5b63e132a290.tar.xz | |
unicore32 additional architecture files: low-level lib: ocd debug
This patch implements low-level debug libraries with On-Chip-Debugger hardware support.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/unicore32/include/mach')
| -rw-r--r-- | arch/unicore32/include/mach/ocd.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/unicore32/include/mach/ocd.h b/arch/unicore32/include/mach/ocd.h new file mode 100644 index 000000000000..189fd71bfa34 --- /dev/null +++ b/arch/unicore32/include/mach/ocd.h @@ -0,0 +1,36 @@ +/* + * 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 |