> -----Ursprüngliche Nachricht-----
> Von: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
> Gesendet: Sonntag, 6. Dezember 2020 21:15
> >> As it's now working in general, Sven can test from setup under Linux.
> >
> > if I try to load under linux with:
> > sudo dtoverlay mcp251xfd spi0-0 interrupt=25
> >
> > I get:
> > [ 36.154548] CAN device driver interface
> > [ 36.158644] mcp251xfd spi0.0: No Oscillator (clock) defined.
>
> The clock is missing. Let's see if it is added to the DT.
>
> Do a diff of the DT before and after applying the overlay.
>
> | sudo dtc -I fs /proc/device-tree -o before
> | sudo dtoverlay mcp251xfd spi0-0 interrupt=25
> | sudo dtc -I fs /proc/device-tree -o after
> | diff -u before after
>
> Send the output of the diff.
Here is the diff:
--- before 2020-12-06 20:31:40.430361119 +0000
+++ after 2020-12-06 20:32:35.939656243 +0000
@@ -35,6 +35,13 @@
clock-frequency = < 0x337f980 >;
};
+ mcp251xfd-spi0-0-osc {
+ compatible = "fixed-clock";
+ #clock-cells = < 0x00 >;
+ phandle = < 0xde >;
+ clock-frequency = < 0x2625a00 >;
+ };
+
clk-usb {
compatible = "fixed-clock";
#clock-cells = < 0x00 >;
@@ -1029,6 +1036,12 @@
brcm,function = < 0x04 >;
};
+ mcp251xfd_spi0_0_pins {
+ brcm,pins = < 0x19 >;
+ phandle = < 0xdd >;
+ brcm,function = < 0x00 >;
+ };
+
uart1_pins {
brcm,pins;
phandle = < 0x15 >;
@@ -1546,6 +1559,18 @@
dmas = < 0x0b 0x06 0x0b 0x07 >;
pinctrl-names = "default";
+ mcp251xfd@0 {
+ compatible = "microchip,mcp251xfd";
+ clocks = < 0xde >;
+ interrupt-parent = < 0x0f >;
+ interrupts = < 0x19 0x08 >;
+ phandle = < 0xdf >;
+ reg = < 0x00 >;
+ pinctrl-0 = < 0xdd >;
+ spi-max-frequency = < 0x1312d00 >;
+ pinctrl-names = "default";
+ };
+
spidev@1 {
compatible = "spidev";
#address-cells = < 0x01 >;
@@ -1557,6 +1582,7 @@
spidev@0 {
compatible = "spidev";
+ status = "disabled";
#address-cells = < 0x01 >;
#size-cells = < 0x00 >;
phandle = < 0xa6 >;
Sven
--
Sven Schuchmann
Schleißheimer Soft- und
Hardwareentwicklung GmbH
Am Kalkofen 10
61206 Nieder-Wöllstadt
GERMANY
Phone: +49 6034 9148 711
Fax: +49 6034 9148 91
Email: schuchmann@xxxxxxxxxxxxxxxxx
