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Viewing changes to roms/u-boot/include/nios2.h

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/include/nios2.h
 
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/*
 
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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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 * SPDX-License-Identifier:     GPL-2.0+
 
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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__ */