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| author | wdenk <wdenk> | 2000-11-20 17:21:10 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2000-11-20 17:21:10 +0000 |
| commit | 4248acf640a74762cd0c5376a1fd9f1a3a0f87ac (patch) | |
| tree | 0346c0a9645316b29d6699b01f35512121ff279d /include/asm-ppc/mc146818rtc.h | |
| parent | 0f89ba4320c42f9df753c7c5527aed1d8eaeca93 (diff) | |
| download | u-boot-imx-4248acf640a74762cd0c5376a1fd9f1a3a0f87ac.zip u-boot-imx-4248acf640a74762cd0c5376a1fd9f1a3a0f87ac.tar.gz u-boot-imx-4248acf640a74762cd0c5376a1fd9f1a3a0f87ac.tar.bz2 | |
Initial revision
Diffstat (limited to 'include/asm-ppc/mc146818rtc.h')
| -rw-r--r-- | include/asm-ppc/mc146818rtc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/asm-ppc/mc146818rtc.h b/include/asm-ppc/mc146818rtc.h new file mode 100644 index 0000000..5f806c4 --- /dev/null +++ b/include/asm-ppc/mc146818rtc.h @@ -0,0 +1,27 @@ +/* + * Machine dependent access functions for RTC registers. + */ +#ifndef __ASM_PPC_MC146818RTC_H +#define __ASM_PPC_MC146818RTC_H + +#include <asm/io.h> + +#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_PPC_MC146818RTC_H */ |