Re: Interrupt questions
Robert Swindells <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.arm |
|---|---|
| Message-ID | <[email protected]> |
Vincent DEFERT <[email protected]> wrote: >> Do you need it to work in interrupt mode, or would it be enough to >> use PIO mode at first? > > With a CPU running in the GHz range I didn't dare using polling, but > I'll give it a try. I meant PIO mode of the I2C controller, looking at the datasheet it supports both that and interrupt/DMA modes. You could also check that the clock definitions are correct. Have you made any local device tree modifications? From a dump of the .dtb file that we build, the i2c controllers seem to be marked as disabled and don't have clock names defined for them.