SPI NOT working in LS1021A-iot board

prabinca4u — Tue, 10 Nov 2015 09:18:40 GMT

Hi all

I'm working on LS1021A-IOT board(rev 1) and SDK version is 1.8 , I need to test the spi interface for the same. For that I did RCW changes for enabling the SPI. Also added following on dts file.

&dspi1 {

status = "okay";

num-cs = <3>;

bus-num = <1>;

is-decoded-cs = <0>;

spidev@0 {

compatible = "spidev";

reg = <0x0>;

spi-max-frequency = <25000000>;

#address-cells = <1>;

#size-cells = <1>;

};

spidev@1 {

compatible = "spidev";

reg = <0x1>;

spi-max-frequency = <25000000>;

#address-cells = <1>;

#size-cells = <1>;

};

spidev@4 {

compatible = "spidev";

reg = <0x4>;

spi-max-frequency = <25000000>;

#address-cells = <1>;

#size-cells = <1>;

};

This dts is worked fine , that is it showing spidev1.x on /dev . But on probing SPI lines by MSO while reading/writing by spidev_test.c (available in ..../git/Documentation/spi) showing no changes on it. also the driver (spidev.ko) is getting called while read/write (that i have tested by putting some prints on spidev.c).

Please help me, Do i have to add any changes in any other files. Im running out of time.

please give some suggestion.

Thanks in advance

LayerscapeのトピックSPI NOT working in LS1021A-iot board

SPI NOT working in LS1021A-iot board