diff --git a/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts b/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
index 08e5bc0048dd..6c0c36c3f665 100644
--- a/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
+++ b/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
@@ -29,11 +29,6 @@
 
 	chosen { };
 
-	memory@00000000 {
-		device_type = "memory";
-		linux,usable-memory = <0x0 0x000000 0x0 0x80000000>;
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -203,6 +198,10 @@
 		irq_trigger_type = "GPIO_IRQ_HIGH";
 		power_on_pin = <&gpio        GPIOX_6         GPIO_ACTIVE_HIGH>;
 		dhd_static_buf; //if use bcm wifi, config dhd_static_buf
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwm_e_pins>;
+		pwms= <&pwm_ef MESON_PWM_0 30541 0>;
+		duty_cycle = <15270>;
 	};
 
 	deinterlace {
@@ -792,7 +791,7 @@
 			 "MMC_PM_KEEP_POWER",
 			 "MMC_CAP_SDIO_IRQ";
 		f_min = <400000>;
-		f_max = <60000000>;
+		f_max = <208000000>;
 	};
 };
 
diff --git a/drivers/amlogic/wifi/wifi_dt.c b/drivers/amlogic/wifi/wifi_dt.c
index 656b5ae19a4b..66c695bd2d86 100644
--- a/drivers/amlogic/wifi/wifi_dt.c
+++ b/drivers/amlogic/wifi/wifi_dt.c
@@ -669,7 +669,12 @@ static int wifi_dev_probe(struct platform_device *pdev)
 			plat->power_on_pin2 = desc_to_gpio(desc);
 		}
 
-		if (get_cpu_type() >= MESON_CPU_MAJOR_ID_GXTVBB) {
+		if (get_cpu_type() == MESON_CPU_MAJOR_ID_SM1) {
+			WIFI_INFO("set pwm as 32k output");
+			ret = pwm_single_channel_conf(plat);
+			if (ret)
+				pr_err("pwm config err\n");
+		} else if (get_cpu_type() >= MESON_CPU_MAJOR_ID_GXTVBB) {
 			ret = pwm_double_channel_conf_dt(plat);
 			if (ret != 0) {
 				WIFI_INFO("pwm_double_channel_conf_dt error\n");