topic Re: ECSPI enabling in iMX6ULL in i.MX Processors

ECSPI enabling in iMX6ULL

mathew_k_t — Tue, 16 Jan 2018 05:00:30 GMT

Hi,I'm using iMX6ULL evk, and currently trying to enable ecspi but spidev is not foundin /dev. I have made changes in dts file and defconfig. Also enabled spi device driver in menuconfig. Please let me know what wrong in these changes.Do i need to change/add something.

Re: ECSPI enabling in iMX6ULL

Yuri — Tue, 16 Jan 2018 06:27:22 GMT

Hello,

I think it makes sense to configure SPI slave mode support in Linux (SPIDEV).
By default it is not supported, so, I suggest to use the following sequence for SPIDEV :

$ bitbake linux-imx -c menuconfig

# select DEVICE DRIVERS -> SPI Support -> User mode SPI device driver support

$ bitbake linux-imx
$ bitbake core-image-minimal

The recent command is used to deploy compiled files to file system.

Have a great day,
Yuri

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Re: ECSPI enabling in iMX6ULL

mathew_k_t — Tue, 16 Jan 2018 06:39:46 GMT

Hi Yuri,

I have done as you said. But still i'm not getting spidev in my /dev.

Re: ECSPI enabling in iMX6ULL

Yuri — Tue, 16 Jan 2018 08:46:20 GMT

Hello,

have You transferred all (new) file system to the boot device of the i.MX6?

Regards,

Yuri.

Re: ECSPI enabling in iMX6ULL

mathew_k_t — Tue, 16 Jan 2018 08:49:41 GMT

yes, I have created new image using* bitbake fsl-image-gui *and transferred

to the boot device

Re: ECSPI enabling in iMX6ULL

hardyb — Thu, 18 Jan 2018 18:52:20 GMT

Output of dmesg|grep spi ?

If there is nothing wrong in your dts, should see something like

root@wandboard-custom:~# dmesg|grep spi

spi_imx 2008000.ecspi: probed