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authorFeng Tang <feng.tang@intel.com>2010-11-10 17:29:00 +0000
committerThomas Gleixner <tglx@linutronix.de>2010-11-11 11:34:27 +0100
commit7309282c90d251cde77fe3b520a8276e25315c49 (patch)
treeda33c8a838d0ee779c1b8a70e13002bf29cd4527 /arch/x86/include/asm/mrst.h
parentcfb505a7ebd4c84206b4cc7d9f966d864a2ac05a (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.h')
-rw-r--r--arch/x86/include/asm/mrst.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
index 283debd29fc0..719f00b28ff5 100644
--- a/arch/x86/include/asm/mrst.h
+++ b/arch/x86/include/asm/mrst.h
@@ -14,7 +14,9 @@
#include <linux/sfi.h>
extern int pci_mrst_init(void);
-int __init sfi_parse_mrtc(struct sfi_table_header *table);
+extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
+extern int sfi_mrtc_num;
+extern struct sfi_rtc_table_entry sfi_mrtc_array[];
/*
* Medfield is the follow-up of Moorestown, it combines two chip solution into
@@ -54,4 +56,10 @@ extern void hsu_early_console_init(void);
extern void intel_scu_devices_create(void);
extern void intel_scu_devices_destroy(void);
+/* VRTC timer */
+#define MRST_VRTC_MAP_SZ (1024)
+/*#define MRST_VRTC_PGOFFSET (0xc00) */
+
+extern void mrst_rtc_init(void);
+
#endif /* _ASM_X86_MRST_H */