GL.iNet GL-S1300 i2c enable

chackl · 2021-07-30T17:35:31.857Z

Hi!

I’ve just enabled i2c on my GL-MT300N-V2 on OpenWrt 21.02.0 RC3 and got it working.
(i use the OpenWRT Git from RC3)
For the GL-MT300N-V2 I modified the “mt7628an_glinet_gl-mt300n-v2.dts” file (Showing that there is an RTC DS1307):

&i2c {                                      
    status = "okay";
    ds1307: ds1307@68 {
        compatible = "maxim,ds1307";
        reg = <0x68>;
        status = "okay";
    };
};

Today i wanted to do the same on the S1300.

It seems to come up with 2 i2c interfaced that are both not activated. So i added this to the file “qcom-ipq4029-gl-s1300.dts”:

&blsp1_i2c3 {                                      
    status = "okay";
};

&blsp1_i2c4 {                                      
    status = "okay";
};

After boot the device shows up 2 i2c interfaces - but if i do “i2cdetect -y 0” or “i2cdetect -y 1” i can not find any device, but the RTC ist on the bus an working with the GL-MT300N-V2

As i did not find any introductions how to enable i2c on a S1300 i just wanted to ask if i have missed something and if it even would work.

Kind regards, C.Hackl

hansome · 2021-07-31T10:39:41.484Z

Please try the attached dts for s1300 i2c.
qcom-ipq4029-gl-s1300.zip (1.8 KB)

chackl · 2021-07-31T13:18:58.784Z

Hi!
Thanks! It works.
Kind regards