I am playing with the imx6ulevk and want to make a wifi/bluetooth combo module PAN9026 works on it by building a yocto image. The module uses sdio to communicate and the final built system can recognize the module but failed to download the binary FW through sdio as follow.
I am very confused about the error: cmd53 write error=-84, cannot find any detail about this error online.
The yocto image I built is based on the repo provided by the imx6ulevk manual
repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-rocko -m imx-4.9.88-2.0.0_ga.xml
The PAN9026 also provides a yocto build sample but based on the wandboard imx6DL.
So, I just move the meta-layer from PAN9026 ycto repo to the imx6ulevk repo and modify the bitbake .bb , machine config and distro config to make the image compile.
The sdio to module driver I used is from Marvell for 88W8977 chip in PAN9026
I think this driver is successfully installed.
and also sure the firmware requested in the system exist.
mmc0 also looks fine
Anyone has ideal?