Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

05/09/2017

06:46 PM Software Development: RE: Altera spi

Thanks Dan,
This cleared up the errors on the DTB. I have tried to run the spi_test.c provided in a different post a... Brian Wentworth

05/08/2017

06:18 PM Software Development: RE: Altera spi

Hi Brian,
Sorry you'll also have to set #size-cells to 0x0 for the altera spi driver nodes, this info was taken fr... Daniel Vincelette

05:11 PM Software Development: RE: Altera spi

I'm still getting the same error. Brian Wentworth

04:57 PM Software Development: RE: Altera spi

Hi Brain,
Sorry for the delay. Looking at the warnings you're getting from the critical link toolchain you need to... Daniel Vincelette

01:24 PM Software Development: RE: Altera spi

I was able to comply the DTB using a tool chain from rocketboards and a spi device showed up under /dev/spidev. Writi... Brian Wentworth

05/02/2017

07:59 PM Software Development: RE: Altera spi

Thanks for the reply. I have updated the dts and I'm getting the following warnings:
Warning (reg_format): "reg" p... Brian Wentworth

02:54 PM Software Development: RE: Altera spi

Hi Brian,
Are you trying to use the device from user space with the spidev driver? If so, then you need to fix th... Michael Williamson

05/01/2017

02:48 PM Software Development: Altera spi

I am trying to use an altera spi as a master. I have enabled the driver in the kernel and added the device to the DTB... Brian Wentworth

04/15/2017

02:41 PM Software Development: RE: SPI Comm - can transmit data from Linux, but not receive

For completeness:
I think the reason U-boot wouldn't boot the device tree I attached for you is because it's too l... Jared Kirschner

04/14/2017

06:01 PM Software Development: RE: SPI Comm - can transmit data from Linux, but not receive

That's awesome to hear! Sorry for the bit of delay, I was working on packaging up my old build to send out to you guy... Daniel Vincelette

05:57 PM Software Development: RE: SPI Comm - can transmit data from Linux, but not receive

Update:
We got loopback working (so no longer need the FPGA project to compare with).
After regenerating our pr... Jared Kirschner

05:04 PM Software Development: RE: SPI Comm - can transmit data from Linux, but not receive

Edit: I see the device tree source above, so the FPGA project is the only information we'd need. Jared Kirschner

04:08 PM Software Development: RE: SPI Comm - can transmit data from Linux, but not receive

Hello Dan,
I'm back from vacation and looking into this again with my hardware engineer colleague. Our first attem... Jared Kirschner