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harigs's avatar
harigs
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3 years ago

altera i2c linux driver bringup for fabric i2c - Agilex

Hi, I am working to bringup altera i2c linux driver on our custom fpga board based on agilex. Following are my bsp details linux 5.15.50 uboot v2022.04 Yocto : Kirkstone I am able to program t...
Jeet14's avatar
Jeet14
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3 years ago

Hi,


Please update on my previous reply.


Regards

Tiwari


  • harigs's avatar
    harigs
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi Tiwari,

    Please find the requested device tree files and boot logs attached.

    I took different approach and I was able to get the driver loaded with the device trees attached.

    But, the altera i2c linux driver complains with the following error

    [008674] altera-i2c f9000080.i2c: Altera SoftIP I2C Probe Complete
    [ 6.469673] altera-i2c f9000080.i2c: Core Status not IDLE...
    [ 6.757649] altera-i2c f9000080.i2c: Core Status not IDLE...

    I am unable to probe the hardware at the moment and hence unable to check the SDA & SCL line status.

    Also, register address probed in linux-socfpga-lts/drivers/i2c/busses/i2c-altera.c are not aligned with the one mentioned in Embedded Peripherals IP user guide.

    What am I missing here?

    Thanks

    Hari