diff --git a/src/soc/rockchip/rk3399/Makefile.inc b/src/soc/rockchip/rk3399/Makefile.inc
index bd6200f30a..773d87f32e 100644
--- a/src/soc/rockchip/rk3399/Makefile.inc
+++ b/src/soc/rockchip/rk3399/Makefile.inc
@@ -41,6 +41,7 @@ romstage-y += ../common/spi.c
 romstage-$(CONFIG_DRIVERS_UART) += ../common/uart.c
 romstage-y += clock.c
 romstage-y += mmu_operations.c
+romstage-y += ../common/pwm.c
 romstage-y += timer.c
 romstage-y += romstage.c
 
diff --git a/src/soc/rockchip/rk3399/include/soc/addressmap.h b/src/soc/rockchip/rk3399/include/soc/addressmap.h
index 90d1356298..30bb46495a 100644
--- a/src/soc/rockchip/rk3399/include/soc/addressmap.h
+++ b/src/soc/rockchip/rk3399/include/soc/addressmap.h
@@ -56,6 +56,7 @@
 
 #define TSADC_BASE		0xff260000
 #define SARADC_BASE		0xff100000
+#define RK_PWM_BASE		0xff420000
 
 #define IC_BASES  { I2C0_BASE, I2C1_BASE, I2C2_BASE, I2C3_BASE,		\
 			I2C4_BASE, I2C5_BASE, I2C6_BASE, I2C7_BASE, I2C8_BASE }
diff --git a/src/soc/rockchip/rk3399/include/soc/clock.h b/src/soc/rockchip/rk3399/include/soc/clock.h
index 4c5a455a8b..ff4edb57ff 100644
--- a/src/soc/rockchip/rk3399/include/soc/clock.h
+++ b/src/soc/rockchip/rk3399/include/soc/clock.h
@@ -95,6 +95,8 @@ static struct rk3399_cru_reg * const cru_ptr = (void *)CRU_BASE;
 #define PERILP1_HCLK_HZ	(99000*KHz)
 #define PERILP1_PCLK_HZ	(49500*KHz)
 
+#define PWM_CLOCK_HZ    PMU_PCLK_HZ
+
 enum apll_l_frequencies {
 	APLL_L_1600_MHZ,
 	APLL_L_600_MHZ,