arm64: dts: rockchip: Add ROCKPi 4A/4B support

Rock PI 4 has 3 variants of hardware platforms called
RockPI 4A, 4B, and 4C.

- Rock PI 4A has no Wif/BT.
- Rock PI 4B has AP6256 Wifi/BT, PoE.
- Rock PI 4C has AP6256 Wifi/BT, PoE, miniDP, USB Host enable
  GPIO pin change compared to 4B, 4C

So move common nodes, properties into dtsi file and include
on respective variant dts files.

Use 4B dts into default rock-pi-4 defconfig until we find any
solution for dynamic detection of these variants.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 82e9b18..bcd89af6 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -136,7 +136,8 @@
 	rk3399-puma-haikou.dtb \
 	rk3399-roc-pc.dtb \
 	rk3399-roc-pc-mezzanine.dtb \
-	rk3399-rock-pi-4.dtb \
+	rk3399-rock-pi-4a.dtb \
+	rk3399-rock-pi-4b.dtb \
 	rk3399-rock960.dtb \
 	rk3399-rockpro64.dtb \
 	rk3399pro-rock-pi-n10.dtb
diff --git a/arch/arm/dts/rk3399-rock-pi-4.dts b/arch/arm/dts/rk3399-rock-pi-4.dtsi
similarity index 94%
rename from arch/arm/dts/rk3399-rock-pi-4.dts
rename to arch/arm/dts/rk3399-rock-pi-4.dtsi
index 3923ec0..1c55a46 100644
--- a/arch/arm/dts/rk3399-rock-pi-4.dts
+++ b/arch/arm/dts/rk3399-rock-pi-4.dtsi
@@ -11,9 +11,6 @@
 #include "rk3399-opp.dtsi"
 
 / {
-	model = "Radxa ROCK Pi 4";
-	compatible = "radxa,rockpi4", "rockchip,rk3399";
-
 	chosen {
 		stdout-path = "serial2:1500000n8";
 	};
@@ -587,17 +584,6 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
 	sd-uhs-sdr104;
-	status = "okay";
-
-	brcmf: wifi@1 {
-		compatible = "brcm,bcm4329-fmac";
-		reg = <1>;
-		interrupt-parent = <&gpio0>;
-		interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;
-		interrupt-names = "host-wake";
-		pinctrl-names = "default";
-		pinctrl-0 = <&wifi_host_wake_l>;
-	};
 };
 
 &sdmmc {
@@ -666,18 +652,6 @@
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
-	status = "okay";
-
-	bluetooth {
-		compatible = "brcm,bcm43438-bt";
-		clocks = <&rk808 1>;
-		clock-names = "ext_clock";
-		device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
-		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
-		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
-	};
 };
 
 &uart2 {
diff --git a/arch/arm/dts/rk3399-rock-pi-4a.dts b/arch/arm/dts/rk3399-rock-pi-4a.dts
new file mode 100644
index 0000000..d96dd3e
--- /dev/null
+++ b/arch/arm/dts/rk3399-rock-pi-4a.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <Akash_Gajjar@mentor.com>
+ * Copyright (c) 2019 Pragnesh Patel <Pragnesh_Patel@mentor.com>
+ */
+
+/dts-v1/;
+#include "rk3399-rock-pi-4.dtsi"
+
+/ {
+	model = "Radxa ROCK Pi 4A";
+	compatible = "radxa,rockpi4", "rockchip,rk3399";
+};
diff --git a/arch/arm/dts/rk3399-rock-pi-4b-u-boot.dtsi b/arch/arm/dts/rk3399-rock-pi-4b-u-boot.dtsi
new file mode 100644
index 0000000..85ee577
--- /dev/null
+++ b/arch/arm/dts/rk3399-rock-pi-4b-u-boot.dtsi
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+#include "rk3399-rock-pi-4-u-boot.dtsi"
diff --git a/arch/arm/dts/rk3399-rock-pi-4b.dts b/arch/arm/dts/rk3399-rock-pi-4b.dts
new file mode 100644
index 0000000..4ca970a
--- /dev/null
+++ b/arch/arm/dts/rk3399-rock-pi-4b.dts
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <Akash_Gajjar@mentor.com>
+ * Copyright (c) 2019 Pragnesh Patel <Pragnesh_Patel@mentor.com>
+ */
+
+/dts-v1/;
+#include "rk3399-rock-pi-4.dtsi"
+
+/ {
+	model = "Radxa ROCK Pi 4B";
+	compatible = "radxa,rockpi4", "rockchip,rk3399";
+};
+
+&sdio0 {
+	status = "okay";
+
+	brcmf: wifi@1 {
+		compatible = "brcm,bcm4329-fmac";
+		reg = <1>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;
+		interrupt-names = "host-wake";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_host_wake_l>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&rk808 1>;
+		clock-names = "ext_clock";
+		device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
+		shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
+	};
+};