diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2017-06-02 22:29:55 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-06-28 13:22:41 +0300 |
| commit | ae7ce6b1e0a98132e2ecb2f64ebaa8c535b6b9f5 (patch) | |
| tree | ac34e15bb2f8de554cba3b6df9ca11dd9b7a0ff5 /arch/mips/include/asm/mach-generic | |
| parent | e889dfca12ce95cdeaa50f66d1f33ad8fed4ca58 (diff) | |
| download | linux-ae7ce6b1e0a98132e2ecb2f64ebaa8c535b6b9f5.tar.xz | |
MIPS: generic: Set RTC_ALWAYS_BCD to 0
Drivers for the mc146818 RTC generally check control registers to
determine whether a value is encoded as binary or as a binary coded
decimal. Setting RTC_ALWAYS_BCD to 1 effectively bypasses these checks
and causes drivers to always expect binary coded decimal values,
regardless of control register values.
This does not seem like a sane default - defaulting to 0 allows the
drivers to check control registers to determine encoding type & allows
the driver to work generically with both binary & BCD encodings. Set
this in mach-generic/mc146818rtc.h such that the generic kernel, or
platforms which don't provide a custom mc146818rtc.h, can have an RTC
driver which works with both encodings.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16185/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/mach-generic')
| -rw-r--r-- | arch/mips/include/asm/mach-generic/mc146818rtc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/mach-generic/mc146818rtc.h b/arch/mips/include/asm/mach-generic/mc146818rtc.h index 0b9a942f079d..9c72e540ff56 100644 --- a/arch/mips/include/asm/mach-generic/mc146818rtc.h +++ b/arch/mips/include/asm/mach-generic/mc146818rtc.h @@ -27,7 +27,7 @@ static inline void CMOS_WRITE(unsigned char data, unsigned long addr) outb_p(data, RTC_PORT(1)); } -#define RTC_ALWAYS_BCD 1 +#define RTC_ALWAYS_BCD 0 #ifndef mc146818_decode_year #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900) |