From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wy0-f177.google.com ([74.125.82.177]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PvHUT-0003XT-L8 for barebox@lists.infradead.org; Thu, 03 Mar 2011 22:59:33 +0000 Received: by wyf23 with SMTP id 23so1676366wyf.36 for ; Thu, 03 Mar 2011 14:59:24 -0800 (PST) From: franck.jullien@gmail.com Date: Thu, 3 Mar 2011 23:58:54 +0100 Message-Id: <4d701d4b.9009d80a.2cd3.5e9d@mx.google.com> In-Reply-To: References: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 40/54] Add arch/nios2/include/asm/nios2.h To: barebox@lists.infradead.org From: Franck JULLIEN Add arch/nios2/include/asm/nios2.h --- arch/nios2/include/asm/nios2.h | 63 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 63 insertions(+), 0 deletions(-) create mode 100644 arch/nios2/include/asm/nios2.h diff --git a/arch/nios2/include/asm/nios2.h b/arch/nios2/include/asm/nios2.h new file mode 100644 index 0000000..54954e3 --- /dev/null +++ b/arch/nios2/include/asm/nios2.h @@ -0,0 +1,63 @@ +/* + * (C) Copyright 2004, Psyent Corporation + * Scott McNutt + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 __NIOS2_H__ +#define __NIOS2_H__ + +/*------------------------------------------------------------------------ + * Control registers -- use with wrctl() & rdctl() + *----------------------------------------------------------------------*/ +#define CTL_STATUS 0 /* Processor status reg */ +#define CTL_ESTATUS 1 /* Exception status reg */ +#define CTL_BSTATUS 2 /* Break status reg */ +#define CTL_IENABLE 3 /* Interrut enable reg */ +#define CTL_IPENDING 4 /* Interrut pending reg */ + +/*------------------------------------------------------------------------ + * Access to control regs + *----------------------------------------------------------------------*/ +#define _str_(x) #x + +#define rdctl(reg)\ + ({unsigned int val;\ + asm volatile( "rdctl %0, ctl" _str_(reg)\ + : "=r" (val) ); val;}) + +#define wrctl(reg,val)\ + asm volatile( "wrctl ctl" _str_(reg) ",%0"\ + : : "r" (val)) + +/*------------------------------------------------------------------------ + * Control reg bit masks + *----------------------------------------------------------------------*/ +#define STATUS_IE (1<<0) /* Interrupt enable */ +#define STATUS_U (1<<1) /* User-mode */ + +/*------------------------------------------------------------------------ + * Bit-31 Cache bypass -- only valid for data access. When data cache + * is not implemented, bit 31 is ignored for compatibility. + *----------------------------------------------------------------------*/ +#define CACHE_BYPASS(a) ((a) | 0x80000000) +#define CACHE_NO_BYPASS(a) ((a) & ~0x80000000) + +#endif /* __NIOS2_H__ */ -- 1.7.3.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox