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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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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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#ifndef __ASM_NIOS2_H__
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#define __ASM_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 /* __ASM_NIOS2_H__ */
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