1 files changed, 40 insertions, 0 deletions
diff --git a/OvmfPkg/LoongArchVirt/Library/LsRealTimeClockLib/LsRealTimeClock.h b/OvmfPkg/LoongArchVirt/Library/LsRealTimeClockLib/LsRealTimeClock.h
new file mode 100644
index 0000000..5ad0b14
--- /dev/null
+++ b/OvmfPkg/LoongArchVirt/Library/LsRealTimeClockLib/LsRealTimeClock.h
@@ -0,0 +1,40 @@
+/** @file
+  Implement EFI RealTimeClock runtime services via RTC Lib.
+
+  Copyright (c) 2024 Loongson Technology Corporation Limited. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef LS_REAL_TIME_CLOCK_H_
+#define LS_REAL_TIME_CLOCK_H_
+
+#define TOY_WRITE0_REG  0x24
+#define TOY_WRITE1_REG  0x28
+#define TOY_READ0_REG   0x2c
+#define TOY_READ1_REG   0x30
+#define RTC_CTRL_REG    0x40
+
+/* TOY Enable bits */
+#define RTC_ENABLE_BIT  (1UL << 13)
+#define TOY_ENABLE_BIT  (1UL << 11)
+#define OSC_ENABLE_BIT  (1UL << 8)
+
+/*
+ * shift bits and filed mask
+ */
+#define TOY_MON_MASK   0x3f
+#define TOY_DAY_MASK   0x1f
+#define TOY_HOUR_MASK  0x1f
+#define TOY_MIN_MASK   0x3f
+#define TOY_SEC_MASK   0x3f
+#define TOY_MSEC_MASK  0xf
+
+#define TOY_MON_SHIFT   26
+#define TOY_DAY_SHIFT   21
+#define TOY_HOUR_SHIFT  16
+#define TOY_MIN_SHIFT   10
+#define TOY_SEC_SHIFT   4
+
+#endif // LS_REAL_TIME_CLOCK_H_