diff --git a/include/dt-bindings/power/renesas,r8a779h0-sysc.h b/include/dt-bindings/power/renesas,r8a779h0-sysc.h
new file mode 100644
index 0000000..f27976f
--- /dev/null
+++ b/include/dt-bindings/power/renesas,r8a779h0-sysc.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+#ifndef __DT_BINDINGS_POWER_RENESAS_R8A779H0_SYSC_H__
+#define __DT_BINDINGS_POWER_RENESAS_R8A779H0_SYSC_H__
+
+/*
+ * These power domain indices match the Power Domain Register Numbers (PDR)
+ */
+
+#define R8A779H0_PD_A1E0D0C0		0
+#define R8A779H0_PD_A1E0D0C1		1
+#define R8A779H0_PD_A1E0D0C2		2
+#define R8A779H0_PD_A1E0D0C3		3
+#define R8A779H0_PD_A2E0D0		16
+#define R8A779H0_PD_A3CR0		21
+#define R8A779H0_PD_A3CR1		22
+#define R8A779H0_PD_A3CR2		23
+#define R8A779H0_PD_A33DGA		24
+#define R8A779H0_PD_A23DGB		25
+#define R8A779H0_PD_C4			31
+#define R8A779H0_PD_A1DSP0		33
+#define R8A779H0_PD_A2IMP01		34
+#define R8A779H0_PD_A2PSC		35
+#define R8A779H0_PD_A2CV0		36
+#define R8A779H0_PD_A2CV1		37
+#define R8A779H0_PD_A3IMR0		38
+#define R8A779H0_PD_A3IMR1		39
+#define R8A779H0_PD_A3VC		40
+#define R8A779H0_PD_A2CN0		42
+#define R8A779H0_PD_A1CN0		44
+#define R8A779H0_PD_A1DSP1		45
+#define R8A779H0_PD_A2DMA		47
+#define R8A779H0_PD_A2CV2		48
+#define R8A779H0_PD_A2CV3		49
+#define R8A779H0_PD_A3IMR2		50
+#define R8A779H0_PD_A3IMR3		51
+#define R8A779H0_PD_A3PCI		52
+#define R8A779H0_PD_A2PCIPHY		53
+#define R8A779H0_PD_A3VIP0		56
+#define R8A779H0_PD_A3VIP2		58
+#define R8A779H0_PD_A3ISP0		60
+#define R8A779H0_PD_A3DUL		62
+
+/* Always-on power area */
+#define R8A779H0_PD_ALWAYS_ON		64
+
+#endif /* __DT_BINDINGS_POWER_RENESAS_R8A779H0_SYSC_H__ */