2020-02-17 03:27:23

by Joakim Zhang

Subject: [PATCH 7/7] arch: arm64: dts: imx8qxp: add device node for CAN in ADMA SS

Add device node for CAN in ADMA SS.

Signed-off-by: Joakim Zhang <[email protected]>
---
arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 47 +++++++++++++++
arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 59 +++++++++++++++++++
2 files changed, 106 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
index f88402ee650c..72a45dd7129e 100644
--- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
@@ -28,6 +28,25 @@
gpio = <&lsio_gpio4 19 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
+
+ reg_can_en: regulator-can-en {
+ compatible = "regulator-fixed";
+ regulator-name = "can-en";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&pca6416 3 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_can_stby: regulator-can-stby {
+ compatible = "regulator-fixed";
+ regulator-name = "can-stby";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&pca6416 5 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&reg_can_en>;
+ };
};

&cm40_i2c {
@@ -80,6 +99,20 @@
};
};

+&adma_flexcan0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan0>;
+ xceiver-supply = <&reg_can_stby>;
+ status = "okay";
+};
+
+&adma_flexcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1>;
+ xceiver-supply = <&reg_can_stby>;
+ status = "okay";
+};
+
&adma_i2c1 {
#address-cells = <1>;
#size-cells = <0>;
@@ -207,6 +240,20 @@
>;
};

+ pinctrl_flexcan0: flexcan0grp {
+ fsl,pins = <
+ IMX8QXP_FLEXCAN0_TX_ADMA_FLEXCAN0_TX 0x00000021
+ IMX8QXP_FLEXCAN0_RX_ADMA_FLEXCAN0_RX 0x00000021
+ >;
+ };
+
+ pinctrl_flexcan1: flexcan1grp {
+ fsl,pins = <
+ IMX8QXP_FLEXCAN1_TX_ADMA_FLEXCAN1_TX 0x00000021
+ IMX8QXP_FLEXCAN1_RX_ADMA_FLEXCAN1_RX 0x00000021
+ >;
+ };
+
pinctrl_ioexp_rst: ioexp_rst_grp {
fsl,pins = <
IMX8QXP_SPI2_SDO_LSIO_GPIO1_IO01 0x06000021
diff --git a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
index cd10519eced7..f549e33d1c82 100644
--- a/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qxp.dtsi
@@ -34,6 +34,9 @@
serial1 = &adma_lpuart1;
serial2 = &adma_lpuart2;
serial3 = &adma_lpuart3;
+ can0 = &adma_flexcan0;
+ can1 = &adma_flexcan1;
+ can2 = &adma_flexcan2;
};

cpus {
@@ -384,6 +387,62 @@
power-domains = <&pd IMX_SC_R_I2C_3>;
status = "disabled";
};
+
+ adma_flexcan0: can@5a8d0000 {
+ compatible = "fsl,imx8qxp-flexcan", "fsl,imx8qm-flexcan";
+ reg = <0x5a8d0000 0x10000>;
+ interrupts = <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ clocks = <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_CLK>,
+ <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_PE_CLK>;
+ clock-names = "ipg", "per";
+ assigned-clocks = <&clk IMX_ADMA_CAN0_CLK>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&pd IMX_SC_R_CAN_0>;
+ /* SLSlice[4] */
+ fsl,clk-source = <0>;
+ status = "disabled";
+ };
+
+ adma_flexcan1: can@5a8e0000 {
+ compatible = "fsl,imx8qxp-flexcan", "fsl,imx8qm-flexcan";
+ reg = <0x5a8e0000 0x10000>;
+ interrupts = <GIC_SPI 236 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ /* CAN0 clock and PD is shared among all CAN instances
+ * as CAN1 shares CAN0's clock and to enable CAN0's
+ * clock it has to be powered on.
+ */
+ clocks = <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_CLK>,
+ <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_PE_CLK>;
+ clock-names = "ipg", "per";
+ assigned-clocks = <&clk IMX_ADMA_CAN0_CLK>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&pd IMX_SC_R_CAN_1>;
+ /* SLSlice[4] */
+ fsl,clk-source = <0>;
+ status = "disabled";
+ };
+
+ adma_flexcan2: can@5a8f0000 {
+ compatible = "fsl,imx8qxp-flexcan", "fsl,imx8qm-flexcan";
+ reg = <0x5a8f0000 0x10000>;
+ interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&gic>;
+ /* CAN0 clock and PD is shared among all CAN instances
+ * as CAN2 shares CAN0's clock and to enable CAN0's
+ * clock it has to be powered on.
+ */
+ clocks = <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_CLK>,
+ <&adma_lpcg IMX_ADMA_LPCG_CAN0_IPG_PE_CLK>;
+ clock-names = "ipg", "per";
+ assigned-clocks = <&clk IMX_ADMA_CAN0_CLK>;
+ assigned-clock-rates = <40000000>;
+ power-domains = <&pd IMX_SC_R_CAN_2>;
+ /* SLSlice[4] */
+ fsl,clk-source = <0>;
+ status = "disabled";
+ };
};

conn_subsys: bus@5b000000 {
--
2.17.1