83d290c56f
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>
42 lines
991 B
C
42 lines
991 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2010
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* Reinhard Meyer, reinhard.meyer@emk-elektronik.de
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*
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* General Purpose Backup Registers
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* Based on AT91SAM9XE datasheet
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*/
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#ifndef AT91_GPBR_H
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#define AT91_GPBR_H
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/*
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* The Atmel AT91SAM9 series has a small resource of 4 nonvolatile
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* 32 Bit registers (buffered by the Vbu power).
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*
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* Please consider carefully before using this resource for tasks
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* that do not really need nonvolatile registers. Maybe you can
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* store information in EEPROM or FLASH instead.
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*
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* However, if you use a GPBR please document its use here and
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* reference the define in your code!
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*
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* known typical uses of the GPBRs:
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* GPBR[0]: offset for RTT timekeeping (u-boot, kernel)
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* GPBR[1]: unused
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* GPBR[2]: unused
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* GPBR[3]: bootcount (u-boot)
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*/
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#define AT91_GPBR_INDEX_TIMEOFF 0
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#define AT91_GPBR_INDEX_BOOTCOUNT 3
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#ifndef __ASSEMBLY__
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typedef struct at91_gpbr {
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u32 reg[4];
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} at91_gpbr_t;
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#endif /* __ASSEMBLY__ */
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#endif
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