diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile
index 1c4b763..48db744 100644
--- a/arch/arm/cpu/armv7/sunxi/Makefile
+++ b/arch/arm/cpu/armv7/sunxi/Makefile
@@ -15,8 +15,10 @@
 obj-y	+= usbc.o
 obj-$(CONFIG_MACH_SUN6I)	+= prcm.o
 obj-$(CONFIG_MACH_SUN8I)	+= prcm.o
+obj-$(CONFIG_MACH_SUN9I)	+= prcm.o
 obj-$(CONFIG_MACH_SUN6I)	+= p2wi.o
 obj-$(CONFIG_MACH_SUN8I)	+= rsb.o
+obj-$(CONFIG_MACH_SUN9I)	+= rsb.o
 obj-$(CONFIG_MACH_SUN4I)	+= clock_sun4i.o
 obj-$(CONFIG_MACH_SUN5I)	+= clock_sun4i.o
 obj-$(CONFIG_MACH_SUN6I)	+= clock_sun6i.o
diff --git a/arch/arm/cpu/armv7/sunxi/rsb.c b/arch/arm/cpu/armv7/sunxi/rsb.c
index b72bb9d..55e9433 100644
--- a/arch/arm/cpu/armv7/sunxi/rsb.c
+++ b/arch/arm/cpu/armv7/sunxi/rsb.c
@@ -18,12 +18,23 @@
 
 static void rsb_cfg_io(void)
 {
+#ifdef CONFIG_MACH_SUN8I
 	sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_GPL0_R_RSB_SCK);
 	sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_GPL1_R_RSB_SDA);
 	sunxi_gpio_set_pull(SUNXI_GPL(0), 1);
 	sunxi_gpio_set_pull(SUNXI_GPL(1), 1);
 	sunxi_gpio_set_drv(SUNXI_GPL(0), 2);
 	sunxi_gpio_set_drv(SUNXI_GPL(1), 2);
+#elif defined CONFIG_MACH_SUN9I
+	sunxi_gpio_set_cfgpin(SUNXI_GPN(0), SUN9I_GPN0_R_RSB_SCK);
+	sunxi_gpio_set_cfgpin(SUNXI_GPN(1), SUN9I_GPN1_R_RSB_SDA);
+	sunxi_gpio_set_pull(SUNXI_GPN(0), 1);
+	sunxi_gpio_set_pull(SUNXI_GPN(1), 1);
+	sunxi_gpio_set_drv(SUNXI_GPN(0), 2);
+	sunxi_gpio_set_drv(SUNXI_GPN(1), 2);
+#else
+#error unsupported MACH_SUNXI
+#endif
 }
 
 static void rsb_set_clk(void)
diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
index a2a7839..04889c5 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu_sun9i.h
@@ -73,7 +73,6 @@
 #define SUNXI_CCM_BASE			(REGS_APB0_BASE + 0x0000)
 #define SUNXI_CCMMODULE_BASE		(REGS_APB0_BASE + 0x0400)
 #define SUNXI_PIO_BASE			(REGS_APB0_BASE + 0x0800)
-#define SUNXI_R_PIO_BASE		(0x08002C00)
 #define SUNXI_TIMER_BASE		(REGS_APB0_BASE + 0x0C00)
 #define SUNXI_PWM_BASE			(REGS_APB0_BASE + 0x1400)
 #define SUNXI_LRADC_BASE		(REGS_APB0_BASE + 0x1800)
@@ -92,8 +91,10 @@
 #define SUNXI_TWI4_BASE			(REGS_APB1_BASE + 0x3800)
 
 /* RCPUS Module */
-#define SUNXI_RPRCM_BASE		(REGS_RCPUS_BASE + 0x1400)
+#define SUNXI_PRCM_BASE			(REGS_RCPUS_BASE + 0x1400)
 #define SUNXI_R_UART_BASE		(REGS_RCPUS_BASE + 0x2800)
+#define SUNXI_R_PIO_BASE		(REGS_RCPUS_BASE + 0x2c00)
+#define SUNXI_RSB_BASE			(REGS_RCPUS_BASE + 0x3400)
 
 /* Misc. */
 #define SUNXI_BROM_BASE			0xFFFF0000 /* 32K */
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h
index 71cc879..f2c247d 100644
--- a/arch/arm/include/asm/arch-sunxi/gpio.h
+++ b/arch/arm/include/asm/arch-sunxi/gpio.h
@@ -45,9 +45,13 @@
  *
  * sun8i has 1 bank:
  * PL0 - PL11
+ *
+ * sun9i has 3 banks:
+ * PL0 - PL9  | PM0 - PM15  | PN0 - PN1
  */
 #define SUNXI_GPIO_L	11
 #define SUNXI_GPIO_M	12
+#define SUNXI_GPIO_N	13
 
 struct sunxi_gpio {
 	u32 cfg[4];
@@ -114,6 +118,7 @@
 	SUNXI_GPIO_I_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_H),
 	SUNXI_GPIO_L_START = 352,
 	SUNXI_GPIO_M_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_L),
+	SUNXI_GPIO_N_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_M),
 	SUNXI_GPIO_AXP0_START = 1024,
 };
 
@@ -129,6 +134,7 @@
 #define SUNXI_GPI(_nr)	(SUNXI_GPIO_I_START + (_nr))
 #define SUNXI_GPL(_nr)	(SUNXI_GPIO_L_START + (_nr))
 #define SUNXI_GPM(_nr)	(SUNXI_GPIO_M_START + (_nr))
+#define SUNXI_GPN(_nr)	(SUNXI_GPIO_N_START + (_nr))
 
 #define SUNXI_GPAXP0(_nr)	(SUNXI_GPIO_AXP0_START + (_nr))
 
@@ -187,6 +193,9 @@
 #define SUN8I_GPL2_R_UART_TX	2
 #define SUN8I_GPL3_R_UART_RX	2
 
+#define SUN9I_GPN0_R_RSB_SCK	3
+#define SUN9I_GPN1_R_RSB_SDA    3
+
 /* GPIO pin pull-up/down config */
 #define SUNXI_GPIO_PULL_DISABLE	0
 #define SUNXI_GPIO_PULL_UP	1