diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 9d67847..7c69be9 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -363,6 +363,12 @@
 	See I2C0_ENABLE help text.
 endif
 
+config R_I2C_ENABLE
+	bool "Enable the PRCM I2C/TWI controller"
+	default n
+	---help---
+	Set this to y to enable the I2C controller which is part of the PRCM.
+
 if MACH_SUN7I
 config I2C4_ENABLE
 	bool "Enable I2C/TWI controller 4"
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 386e2e0..1cc39e4 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -422,6 +422,12 @@
 	clock_twi_onoff(4, 1);
 #endif
 #endif
+
+#ifdef CONFIG_R_I2C_ENABLE
+	clock_twi_onoff(5, 1);
+	sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_H3_GPL_R_TWI);
+	sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_H3_GPL_R_TWI);
+#endif
 }
 
 #ifdef CONFIG_SPL_BUILD