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-rw-r--r--arch/arm/boot/dts/rk3188.dtsi631
1 files changed, 631 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
new file mode 100644
index 000000000..3b7cae6f4
--- /dev/null
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -0,0 +1,631 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/clock/rk3188-cru.h>
+#include "rk3xxx.dtsi"
+
+/ {
+ compatible = "rockchip,rk3188";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-method = "rockchip,rk3066-smp";
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x0>;
+ operating-points = <
+ /* kHz uV */
+ 1608000 1350000
+ 1416000 1250000
+ 1200000 1150000
+ 1008000 1075000
+ 816000 975000
+ 600000 950000
+ 504000 925000
+ 312000 875000
+ >;
+ clock-latency = <40000>;
+ clocks = <&cru ARMCLK>;
+ };
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x1>;
+ };
+ cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x2>;
+ };
+ cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x3>;
+ };
+ };
+
+ sram: sram@10080000 {
+ compatible = "mmio-sram";
+ reg = <0x10080000 0x8000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x10080000 0x8000>;
+
+ smp-sram@0 {
+ compatible = "rockchip,rk3066-smp-sram";
+ reg = <0x0 0x50>;
+ };
+ };
+
+ timer3: timer@2000e000 {
+ compatible = "rockchip,rk3188-timer", "rockchip,rk3288-timer";
+ reg = <0x2000e000 0x20>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_TIMER3>, <&cru SCLK_TIMER3>;
+ clock-names = "pclk", "timer";
+ };
+
+ timer6: timer@200380a0 {
+ compatible = "rockchip,rk3188-timer", "rockchip,rk3288-timer";
+ reg = <0x200380a0 0x20>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_TIMER0>, <&cru SCLK_TIMER6>;
+ clock-names = "pclk", "timer";
+ };
+
+ i2s0: i2s@1011a000 {
+ compatible = "rockchip,rk3188-i2s", "rockchip,rk3066-i2s";
+ reg = <0x1011a000 0x2000>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s0_bus>;
+ dmas = <&dmac1_s 6>, <&dmac1_s 7>;
+ dma-names = "tx", "rx";
+ clock-names = "i2s_hclk", "i2s_clk";
+ clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+ rockchip,playback-channels = <2>;
+ rockchip,capture-channels = <2>;
+ status = "disabled";
+ };
+
+ spdif: sound@1011e000 {
+ compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
+ reg = <0x1011e000 0x2000>;
+ #sound-dai-cells = <0>;
+ clock-names = "hclk", "mclk";
+ clocks = <&cru HCLK_SPDIF>, <&cru SCLK_SPDIF>;
+ dmas = <&dmac1_s 8>;
+ dma-names = "tx";
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spdif_tx>;
+ status = "disabled";
+ };
+
+ cru: clock-controller@20000000 {
+ compatible = "rockchip,rk3188-cru";
+ reg = <0x20000000 0x1000>;
+ rockchip,grf = <&grf>;
+
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
+
+ efuse: efuse@20010000 {
+ compatible = "rockchip,rk3188-efuse";
+ reg = <0x20010000 0x4000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ clocks = <&cru PCLK_EFUSE>;
+ clock-names = "pclk_efuse";
+
+ cpu_leakage: cpu_leakage@17 {
+ reg = <0x17 0x1>;
+ };
+ };
+
+ usbphy: phy {
+ compatible = "rockchip,rk3188-usb-phy", "rockchip,rk3288-usb-phy";
+ rockchip,grf = <&grf>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ usbphy0: usb-phy@10c {
+ #phy-cells = <0>;
+ reg = <0x10c>;
+ clocks = <&cru SCLK_OTGPHY0>;
+ clock-names = "phyclk";
+ #clock-cells = <0>;
+ };
+
+ usbphy1: usb-phy@11c {
+ #phy-cells = <0>;
+ reg = <0x11c>;
+ clocks = <&cru SCLK_OTGPHY1>;
+ clock-names = "phyclk";
+ #clock-cells = <0>;
+ };
+ };
+
+ pinctrl: pinctrl {
+ compatible = "rockchip,rk3188-pinctrl";
+ rockchip,grf = <&grf>;
+ rockchip,pmu = <&pmu>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gpio0: gpio0@2000a000 {
+ compatible = "rockchip,rk3188-gpio-bank0";
+ reg = <0x2000a000 0x100>;
+ interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_GPIO0>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio1: gpio1@2003c000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x2003c000 0x100>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_GPIO1>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio2: gpio2@2003e000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x2003e000 0x100>;
+ interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_GPIO2>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ gpio3: gpio3@20080000 {
+ compatible = "rockchip,gpio-bank";
+ reg = <0x20080000 0x100>;
+ interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru PCLK_GPIO3>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+
+ pcfg_pull_up: pcfg_pull_up {
+ bias-pull-up;
+ };
+
+ pcfg_pull_down: pcfg_pull_down {
+ bias-pull-down;
+ };
+
+ pcfg_pull_none: pcfg_pull_none {
+ bias-disable;
+ };
+
+ emmc {
+ emmc_clk: emmc-clk {
+ rockchip,pins = <RK_GPIO0 24 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ emmc_cmd: emmc-cmd {
+ rockchip,pins = <RK_GPIO0 26 RK_FUNC_2 &pcfg_pull_up>;
+ };
+
+ emmc_rst: emmc-rst {
+ rockchip,pins = <RK_GPIO0 27 RK_FUNC_2 &pcfg_pull_none>;
+ };
+
+ /*
+ * The data pins are shared between nandc and emmc and
+ * not accessible through pinctrl. Also they should've
+ * been already set correctly by firmware, as
+ * flash/emmc is the boot-device.
+ */
+ };
+
+ emac {
+ emac_xfer: emac-xfer {
+ rockchip,pins = <RK_GPIO3 16 RK_FUNC_2 &pcfg_pull_none>, /* tx_en */
+ <RK_GPIO3 17 RK_FUNC_2 &pcfg_pull_none>, /* txd1 */
+ <RK_GPIO3 18 RK_FUNC_2 &pcfg_pull_none>, /* txd0 */
+ <RK_GPIO3 19 RK_FUNC_2 &pcfg_pull_none>, /* rxd0 */
+ <RK_GPIO3 20 RK_FUNC_2 &pcfg_pull_none>, /* rxd1 */
+ <RK_GPIO3 21 RK_FUNC_2 &pcfg_pull_none>, /* mac_clk */
+ <RK_GPIO3 22 RK_FUNC_2 &pcfg_pull_none>, /* rx_err */
+ <RK_GPIO3 23 RK_FUNC_2 &pcfg_pull_none>; /* crs_dvalid */
+ };
+
+ emac_mdio: emac-mdio {
+ rockchip,pins = <RK_GPIO3 24 RK_FUNC_2 &pcfg_pull_none>,
+ <RK_GPIO3 25 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ i2c0 {
+ i2c0_xfer: i2c0-xfer {
+ rockchip,pins = <RK_GPIO1 24 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 25 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ i2c1 {
+ i2c1_xfer: i2c1-xfer {
+ rockchip,pins = <RK_GPIO1 26 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 27 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ i2c2 {
+ i2c2_xfer: i2c2-xfer {
+ rockchip,pins = <RK_GPIO1 28 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 29 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ i2c3 {
+ i2c3_xfer: i2c3-xfer {
+ rockchip,pins = <RK_GPIO3 14 RK_FUNC_2 &pcfg_pull_none>,
+ <RK_GPIO3 15 RK_FUNC_2 &pcfg_pull_none>;
+ };
+ };
+
+ i2c4 {
+ i2c4_xfer: i2c4-xfer {
+ rockchip,pins = <RK_GPIO1 30 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 31 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm0 {
+ pwm0_out: pwm0-out {
+ rockchip,pins = <RK_GPIO3 27 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm1 {
+ pwm1_out: pwm1-out {
+ rockchip,pins = <RK_GPIO3 28 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm2 {
+ pwm2_out: pwm2-out {
+ rockchip,pins = <RK_GPIO3 29 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ pwm3 {
+ pwm3_out: pwm3-out {
+ rockchip,pins = <RK_GPIO3 30 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ spi0 {
+ spi0_clk: spi0-clk {
+ rockchip,pins = <RK_GPIO1 6 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_cs0: spi0-cs0 {
+ rockchip,pins = <RK_GPIO1 7 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_tx: spi0-tx {
+ rockchip,pins = <RK_GPIO1 5 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_rx: spi0-rx {
+ rockchip,pins = <RK_GPIO1 4 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ spi0_cs1: spi0-cs1 {
+ rockchip,pins = <RK_GPIO1 15 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ };
+
+ spi1 {
+ spi1_clk: spi1-clk {
+ rockchip,pins = <RK_GPIO0 30 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ spi1_cs0: spi1-cs0 {
+ rockchip,pins = <RK_GPIO0 31 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ spi1_rx: spi1-rx {
+ rockchip,pins = <RK_GPIO0 28 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ spi1_tx: spi1-tx {
+ rockchip,pins = <RK_GPIO0 29 RK_FUNC_1 &pcfg_pull_up>;
+ };
+ spi1_cs1: spi1-cs1 {
+ rockchip,pins = <RK_GPIO1 14 RK_FUNC_2 &pcfg_pull_up>;
+ };
+ };
+
+ uart0 {
+ uart0_xfer: uart0-xfer {
+ rockchip,pins = <RK_GPIO1 0 RK_FUNC_1 &pcfg_pull_up>,
+ <RK_GPIO1 1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_cts: uart0-cts {
+ rockchip,pins = <RK_GPIO1 2 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart0_rts: uart0-rts {
+ rockchip,pins = <RK_GPIO1 3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ uart1 {
+ uart1_xfer: uart1-xfer {
+ rockchip,pins = <RK_GPIO1 4 RK_FUNC_1 &pcfg_pull_up>,
+ <RK_GPIO1 5 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart1_cts: uart1-cts {
+ rockchip,pins = <RK_GPIO1 6 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart1_rts: uart1-rts {
+ rockchip,pins = <RK_GPIO1 7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ uart2 {
+ uart2_xfer: uart2-xfer {
+ rockchip,pins = <RK_GPIO1 8 RK_FUNC_1 &pcfg_pull_up>,
+ <RK_GPIO1 9 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ /* no rts / cts for uart2 */
+ };
+
+ uart3 {
+ uart3_xfer: uart3-xfer {
+ rockchip,pins = <RK_GPIO1 10 RK_FUNC_1 &pcfg_pull_up>,
+ <RK_GPIO1 11 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart3_cts: uart3-cts {
+ rockchip,pins = <RK_GPIO1 12 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ uart3_rts: uart3-rts {
+ rockchip,pins = <RK_GPIO1 13 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ sd0 {
+ sd0_clk: sd0-clk {
+ rockchip,pins = <RK_GPIO3 2 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_cmd: sd0-cmd {
+ rockchip,pins = <RK_GPIO3 3 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_cd: sd0-cd {
+ rockchip,pins = <RK_GPIO3 8 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_wp: sd0-wp {
+ rockchip,pins = <RK_GPIO3 9 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_pwr: sd0-pwr {
+ rockchip,pins = <RK_GPIO3 1 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_bus1: sd0-bus-width1 {
+ rockchip,pins = <RK_GPIO3 4 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd0_bus4: sd0-bus-width4 {
+ rockchip,pins = <RK_GPIO3 4 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 5 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 6 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 7 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ sd1 {
+ sd1_clk: sd1-clk {
+ rockchip,pins = <RK_GPIO3 21 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd1_cmd: sd1-cmd {
+ rockchip,pins = <RK_GPIO3 16 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd1_cd: sd1-cd {
+ rockchip,pins = <RK_GPIO3 22 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd1_wp: sd1-wp {
+ rockchip,pins = <RK_GPIO3 23 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd1_bus1: sd1-bus-width1 {
+ rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_none>;
+ };
+
+ sd1_bus4: sd1-bus-width4 {
+ rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 18 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 19 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO3 20 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ i2s0 {
+ i2s0_bus: i2s0-bus {
+ rockchip,pins = <RK_GPIO1 16 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 17 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 18 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 19 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 20 RK_FUNC_1 &pcfg_pull_none>,
+ <RK_GPIO1 21 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+
+ spdif {
+ spdif_tx: spdif-tx {
+ rockchip,pins = <RK_GPIO1 14 RK_FUNC_1 &pcfg_pull_none>;
+ };
+ };
+ };
+};
+
+&emac {
+ compatible = "rockchip,rk3188-emac";
+};
+
+&global_timer {
+ interrupts = <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+ status = "disabled";
+};
+
+&local_timer {
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
+};
+
+&gpu {
+ compatible = "rockchip,rk3188-mali", "arm,mali-400";
+ interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "gp",
+ "gpmmu",
+ "pp0",
+ "ppmmu0",
+ "pp1",
+ "ppmmu1",
+ "pp2",
+ "ppmmu2",
+ "pp3",
+ "ppmmu3";
+};
+
+&i2c0 {
+ compatible = "rockchip,rk3188-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_xfer>;
+};
+
+&i2c1 {
+ compatible = "rockchip,rk3188-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_xfer>;
+};
+
+&i2c2 {
+ compatible = "rockchip,rk3188-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_xfer>;
+};
+
+&i2c3 {
+ compatible = "rockchip,rk3188-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c3_xfer>;
+};
+
+&i2c4 {
+ compatible = "rockchip,rk3188-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c4_xfer>;
+};
+
+&pwm0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_out>;
+};
+
+&pwm1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1_out>;
+};
+
+&pwm2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2_out>;
+};
+
+&pwm3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm3_out>;
+};
+
+&spi0 {
+ compatible = "rockchip,rk3188-spi", "rockchip,rk3066-spi";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_clk &spi0_tx &spi0_rx &spi0_cs0>;
+};
+
+&spi1 {
+ compatible = "rockchip,rk3188-spi", "rockchip,rk3066-spi";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi1_clk &spi1_tx &spi1_rx &spi1_cs0>;
+};
+
+&uart0 {
+ compatible = "rockchip,rk3188-uart", "snps,dw-apb-uart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer>;
+};
+
+&uart1 {
+ compatible = "rockchip,rk3188-uart", "snps,dw-apb-uart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_xfer>;
+};
+
+&uart2 {
+ compatible = "rockchip,rk3188-uart", "snps,dw-apb-uart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_xfer>;
+};
+
+&uart3 {
+ compatible = "rockchip,rk3188-uart", "snps,dw-apb-uart";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_xfer>;
+};
+
+&wdt {
+ compatible = "rockchip,rk3188-wdt", "snps,dw-wdt";
+};