diff --git a/soc/renesas/rcar/rcar_gen3/Kconfig.defconfig b/soc/renesas/rcar/rcar_gen3/Kconfig.defconfig
index 173efde91373b4..da9a5674d46ff8 100644
--- a/soc/renesas/rcar/rcar_gen3/Kconfig.defconfig
+++ b/soc/renesas/rcar/rcar_gen3/Kconfig.defconfig
@@ -6,8 +6,7 @@
 if SOC_SERIES_RCAR_GEN3
 
 config NUM_IRQS
-	default 512 if SOC_R8A77951_R7
-	default 240 if SOC_R8A77961 || SOC_R8A77951_A57
+	default 512
 
 config PINCTRL
 	default y