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Subject[PATCH V1 1/3] ARM: dts: imx6sx-sdb: Add flexcan support
Date
From: Dong Aisheng <aisheng.dong@nxp.com>

CAN transceiver is different on RevA and RevB board.
It's active high on RevA while active low on Rev B.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
---
arch/arm/boot/dts/imx6sx-sdb-reva.dts | 12 ++++++++
arch/arm/boot/dts/imx6sx-sdb.dts | 5 ++++
arch/arm/boot/dts/imx6sx-sdb.dtsi | 42 +++++++++++++++++++++++++++
3 files changed, 59 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sx-sdb-reva.dts b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
index 9cc6ff206aea..d98dcf00b9c4 100644
--- a/arch/arm/boot/dts/imx6sx-sdb-reva.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb-reva.dts
@@ -10,6 +10,18 @@

/ {
model = "Freescale i.MX6 SoloX SDB RevA Board";
+
+ /* Transceiver EN/STBY is active high on RevA board */
+ reg_can_en: regulator-can-en {
+ gpio = <&gpio4 25 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reg_can_stby: regulator-can-stby {
+ gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ vin-supply = <&reg_can_en>;
+ };
};

&i2c1 {
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index 6dd9bebfe027..092b8de142a8 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -10,6 +10,11 @@

/ {
model = "Freescale i.MX6 SoloX SDB RevB Board";
+
+ /* Transceiver EN/STBY is active low on RevB board */
+ reg_can_stby: regulator-can-stby {
+ gpio = <&gpio4 27 GPIO_ACTIVE_LOW>;
+ };
};

&i2c1 {
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dtsi b/arch/arm/boot/dts/imx6sx-sdb.dtsi
index 53b3408b5fab..4de2473293aa 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dtsi
+++ b/arch/arm/boot/dts/imx6sx-sdb.dtsi
@@ -138,6 +138,20 @@
regulator-max-microvolt = <5000000>;
};

+ reg_can_en: regulator-can-en {
+ compatible = "regulator-fixed";
+ regulator-name = "can-en";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_can_stby: regulator-can-stby {
+ compatible = "regulator-fixed";
+ regulator-name = "can-stby";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
sound {
compatible = "fsl,imx6sx-sdb-wm8962", "fsl,imx-audio-wm8962";
model = "wm8962-audio";
@@ -204,6 +218,20 @@
status = "okay";
};

+&flexcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan1>;
+ xceiver-supply = <&reg_can_stby>;
+ status = "okay";
+};
+
+&flexcan2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_flexcan2>;
+ xceiver-supply = <&reg_can_stby>;
+ status = "okay";
+};
+
&i2c3 {
clock-frequency = <100000>;
pinctrl-names = "default";
@@ -399,6 +427,20 @@
>;
};

+ pinctrl_flexcan1: flexcan1grp {
+ fsl,pins = <
+ MX6SX_PAD_QSPI1B_DQS__CAN1_TX 0x1b020
+ MX6SX_PAD_QSPI1A_SS1_B__CAN1_RX 0x1b020
+ >;
+ };
+
+ pinctrl_flexcan2: flexcan2grp {
+ fsl,pins = <
+ MX6SX_PAD_QSPI1B_SS1_B__CAN2_RX 0x1b020
+ MX6SX_PAD_QSPI1A_DQS__CAN2_TX 0x1b020
+ >;
+ };
+
pinctrl_gpio_keys: gpio_keysgrp {
fsl,pins = <
MX6SX_PAD_CSI_DATA04__GPIO1_IO_18 0x17059
--
2.17.1
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