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https://github.com/AsahiLinux/u-boot
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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
1,009 B
C
42 lines
1,009 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>
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*/
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#ifndef __EARLY_CMOS_H
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#define __EARLY_CMOS_H
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/* CMOS actually resides in the RTC SRAM */
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#define CMOS_IO_PORT 0x70
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/**
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* cmos_read8() - Get 8-bit data stored at the given address
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*
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* This reads from CMOS for the 8-bit data stored at the given address.
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*
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* @addr: RTC SRAM address
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* @return: 8-bit data stored at the given address
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*/
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u8 cmos_read8(u8 addr);
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/**
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* cmos_read16() - Get 16-bit data stored at the given address
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*
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* This reads from CMOS for the 16-bit data stored at the given address.
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*
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* @addr: RTC SRAM address
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* @return: 16-bit data stored at the given address
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*/
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u16 cmos_read16(u8 addr);
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/**
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* cmos_read32() - Get 32-bit data stored at the given address
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*
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* This reads from CMOS for the 32-bit data stored at the given address.
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*
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* @addr: RTC SRAM address
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* @return: 32-bit data stored at the given address
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*/
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u32 cmos_read32(u8 addr);
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#endif /* __EARLY_CMOS_H */
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