Add support for onboard MCP2518FD SPI CAN transceiver attached to SPI0
of RB5.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index d9f52703ba2a..ce22d4fa383e 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -25,6 +25,13 @@ chosen {
stdout-path = "serial0:115200n8";
};
+ /* Fixed crystal oscillator dedicated to MCP2518FD */
+ clk40M: can_clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <40000000>;
+ };
+
dc12v: dc12v-regulator {
compatible = "regulator-fixed";
regulator-name = "DC12V";
@@ -493,6 +500,16 @@ &sdhc_2 {
/* CAN */
&spi0 {
status = "okay";
+
+ can@0 {
+ compatible = "microchip,mcp2518fd";
+ reg = <0>;
+ clocks = <&clk40M>;
+ interrupts-extended = <&tlmm 15 IRQ_TYPE_LEVEL_LOW>;
+ spi-max-frequency = <10000000>;
+ vdd-supply = <&vdc_5v>;
+ xceiver-supply = <&vdc_5v>;
+ };
};
&tlmm {
--
2.25.1
