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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
32 lines
736 B
C
32 lines
736 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _ASM_POWERPC_MC146818RTC_H
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#define _ASM_POWERPC_MC146818RTC_H
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/*
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* Machine dependent access functions for RTC registers.
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*/
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#ifdef __KERNEL__
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#include <asm/io.h>
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#ifndef RTC_PORT
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#define RTC_PORT(x) (0x70 + (x))
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#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
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#endif
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/*
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* The yet supported machines all access the RTC index register via
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* an ISA port access but the way to access the date register differs ...
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*/
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#define CMOS_READ(addr) ({ \
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outb_p((addr),RTC_PORT(0)); \
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inb_p(RTC_PORT(1)); \
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})
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#define CMOS_WRITE(val, addr) ({ \
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outb_p((addr),RTC_PORT(0)); \
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outb_p((val),RTC_PORT(1)); \
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})
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_MC146818RTC_H */
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