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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/sparc/include/asm/mc146818rtc_64.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sparc/include/asm/mc146818rtc_64.h')
| -rw-r--r-- | arch/sparc/include/asm/mc146818rtc_64.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/mc146818rtc_64.h b/arch/sparc/include/asm/mc146818rtc_64.h new file mode 100644 index 000000000..b1708a7e5 --- /dev/null +++ b/arch/sparc/include/asm/mc146818rtc_64.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef __ASM_SPARC64_MC146818RTC_H +#define __ASM_SPARC64_MC146818RTC_H + +#include <asm/io.h> + +#ifndef RTC_PORT +extern unsigned long cmos_regs; +#define RTC_PORT(x) (cmos_regs + (x)) +#define RTC_ALWAYS_BCD 0 +#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_SPARC64_MC146818RTC_H */ |