diff options
| author | Feng Tang <feng.tang@intel.com> | 2010-11-10 17:29:00 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-11-11 11:34:27 +0100 |
| commit | 7309282c90d251cde77fe3b520a8276e25315c49 (patch) | |
| tree | da33c8a838d0ee779c1b8a70e13002bf29cd4527 /arch/x86/include/asm/mrst-vrtc.h | |
| parent | cfb505a7ebd4c84206b4cc7d9f966d864a2ac05a (diff) | |
x86: mrst: Add vrtc driver which serves as a wall clock device
Moorestown platform doesn't have a m146818 RTC device like traditional
x86 PC, but a firmware emulated virtual RTC device(vrtc), which provides
some basic RTC functions like get/set time. vrtc serves as the only
wall clock device on Moorestown platform.
[ tglx: Changed the exports to _GPL ]
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
LKML-Reference: <20101110172837.3311.40483.stgit@localhost.localdomain>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/mrst-vrtc.h')
| -rw-r--r-- | arch/x86/include/asm/mrst-vrtc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mrst-vrtc.h b/arch/x86/include/asm/mrst-vrtc.h new file mode 100644 index 00000000000..73668abdbed --- /dev/null +++ b/arch/x86/include/asm/mrst-vrtc.h @@ -0,0 +1,9 @@ +#ifndef _MRST_VRTC_H +#define _MRST_VRTC_H + +extern unsigned char vrtc_cmos_read(unsigned char reg); +extern void vrtc_cmos_write(unsigned char val, unsigned char reg); +extern unsigned long vrtc_get_time(void); +extern int vrtc_set_mmss(unsigned long nowtime); + +#endif |