mirror of
https://github.com/brain-hackers/u-boot-brain
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4f63bfb689
The commit 51926d5ee0
COMMON: Use __stringify() instead of rest of implementations
forgot to update the wrctl funtion, and causes compilation error.
But there are builtin functions for control registers access in
nios2 comipiler. It is convenient to use them instead.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Cc: Marek Vasut <marex@denx.de>
57 lines
2.3 KiB
C
57 lines
2.3 KiB
C
/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __NIOS2_H__
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#define __NIOS2_H__
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/*------------------------------------------------------------------------
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* Control registers -- use with wrctl() & rdctl()
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*----------------------------------------------------------------------*/
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#define CTL_STATUS 0 /* Processor status reg */
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#define CTL_ESTATUS 1 /* Exception status reg */
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#define CTL_BSTATUS 2 /* Break status reg */
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#define CTL_IENABLE 3 /* Interrut enable reg */
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#define CTL_IPENDING 4 /* Interrut pending reg */
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/*------------------------------------------------------------------------
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* Access to control regs
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*----------------------------------------------------------------------*/
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#define rdctl(reg) __builtin_rdctl(reg)
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#define wrctl(reg, val) __builtin_wrctl(reg, val)
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/*------------------------------------------------------------------------
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* Control reg bit masks
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*----------------------------------------------------------------------*/
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#define STATUS_IE (1<<0) /* Interrupt enable */
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#define STATUS_U (1<<1) /* User-mode */
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/*------------------------------------------------------------------------
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* Bit-31 Cache bypass -- only valid for data access. When data cache
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* is not implemented, bit 31 is ignored for compatibility.
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*----------------------------------------------------------------------*/
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#define CACHE_BYPASS(a) ((a) | 0x80000000)
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#define CACHE_NO_BYPASS(a) ((a) & ~0x80000000)
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#endif /* __NIOS2_H__ */
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