Hi!
I am now having issues with i2c on T113. The pin nodes were added to
sunxi-d1s-t113.dts. They are not there by default.
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -52,6 +52,11 @@ pio: pinctrl@2000000 {
#gpio-cells = <3>;
#interrupt-cells = <3>;
+ i2c0_pins: i2c0-pins {
+ pins = "PB3", "PB2";
+ function = "i2c0";
+ };
+
/omit-if-no-ref/
can0_pins: can0-pins {
pins = "PB2", "PB3";
and added i2c0 to my dts.
+&i2c0 {
+ pinctrl-0 = <&i2c0_pins>;
+ clock-frequency = <400000>;
+ status = "okay";
+};
There are pullups on the board and the lines are actually pulled up to 3.3V.
But the i2cdetect command results in faulure. With connected i2c-slave and
without.
Error message is: mv64xxx: I2C bus locked, block: 1
pinctrl-sun20i-d1.c does have the correct definitions. So that should be
fine.
I also tried pins = "PB3", "PB2", because i think in other dtsi the first
pin is SCL.
Anyone has a working i2c on this chip?
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