From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/arm/include/asm/mc146818rtc.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 arch/arm/include/asm/mc146818rtc.h (limited to 'arch/arm/include/asm/mc146818rtc.h') diff --git a/arch/arm/include/asm/mc146818rtc.h b/arch/arm/include/asm/mc146818rtc.h new file mode 100644 index 000000000..58922879a --- /dev/null +++ b/arch/arm/include/asm/mc146818rtc.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef _ASM_MC146818RTC_H +#define _ASM_MC146818RTC_H + +#include +#include + +#define RTC_IRQ BUILD_BUG_ON(1) + +#ifndef RTC_PORT +#define RTC_PORT(x) (0x70 + (x)) +#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */ +#endif + +/* + * The yet supported machines all access the RTC index register via + * an ISA port access but the way to access the date register differs ... + */ +#define CMOS_READ(addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +inb_p(RTC_PORT(1)); \ +}) +#define CMOS_WRITE(val, addr) ({ \ +outb_p((addr),RTC_PORT(0)); \ +outb_p((val),RTC_PORT(1)); \ +}) + +#endif /* _ASM_MC146818RTC_H */ -- cgit v1.2.3