arm64: dts: qcom: qrb5165-rb5: Add support for MCP2518FD

Add support for onboard MCP2518FD SPI CAN transceiver attached to SPI0
of RB5.

Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20201127173044.55144-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index d9f52703ba2ad80d52e125aa13d8fbe697e63827..ce22d4fa383e6a50fb0903a83c59514d05c33fdc 100644 (file)
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -25,6 +25,13 @@
                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 @@
 /* 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 {