u-boot/arch/openrisc/include/asm/system.h
Stefan Kristiansson ca9d3ab5c7 openrisc: Add architecture header files
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
2012-01-13 21:16:37 +01:00

39 lines
1.2 KiB
C

/*
* (C) Copyright 2011, Julius Baxter <julius@opencores.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASM_OPENRISC_SYSTEM_H
#define __ASM_OPENRISC_SYSTEM_H
#include <asm/spr-defs.h>
static inline unsigned long mfspr(unsigned long add)
{
unsigned long ret;
__asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
return ret;
}
static inline void mtspr(unsigned long add, unsigned long val)
{
__asm__ __volatile__ ("l.mtspr r0,%1,%0" : : "K" (add), "r" (val));
}
#endif /* __ASM_OPENRISC_SYSTEM_H */