AnsweredAssumed Answered

IMX6UL wifi/bt module FW download error 

Question asked by Jiadong Chen on Dec 13, 2018
Latest reply on Dec 16, 2018 by igorpadykov

Hi all,

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

SD-WLAN-SD-BT-8977-U16-MMC-V16.68.1.p170-16.26.1.p170-C4X16544_V2-MGPL.zip

I think this driver is successfully installed.

and also sure the firmware requested in the system exist.

mmc0 also looks fine

system info

Anyone has ideal?

 

Thanks

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