Murata kit for IMX7ULP EVK

[zoy74758]

I try having Murata 1MW module working on IMX7ULP EVK. But I cannot make it work. The problem is as follows:

I would like to follow Murata datasheets for building Yocto for IMX7ULP EVK.

The user guide is excellent. It says how the Yocto customized for Murata can be downloaded and built.

The only problem is lack of documentation for IMX7.

The entire Yocto project is built with different name for the images and dtb files.

image and dtb file list

121634816 Jun 13 21:31 core-image-base-imx7ulpevk-20190613060108.rootfs.ext4      8859 Jun 13 21:31 core-image-base-imx7ulpevk-20190613060108.rootfs.manifest  39223560 Jun 13 21:49 core-image-base-imx7ulpevk-20190613060108.rootfs.sdcard.bz2  32569715 Jun 13 21:58 core-image-base-imx7ulpevk-20190613060108.rootfs.tar.bz2    150811 Jun 13 21:31 core-image-base-imx7ulpevk-20190613060108.testdata.json        53 Jun 14 15:28 core-image-base-imx7ulpevk.ext4 -> core-image-base-imx7ulpevk-20190613060108.rootfs.ext4        57 Jun 14 15:28 core-image-base-imx7ulpevk.manifest -> core-image-base-imx7ulpevk-20190613060108.rootfs.manifest        59 Jun 14 15:28 core-image-base-imx7ulpevk.sdcard.bz2 -> core-image-base-imx7ulpevk-20190613060108.rootfs.sdcard.bz2        56 Jun 14 15:28 core-image-base-imx7ulpevk.tar.bz2 -> core-image-base-imx7ulpevk-20190613060108.rootfs.tar.bz2        55 Jun 14 15:28 core-image-base-imx7ulpevk.testdata.json -> core-image-base-imx7ulpevk-20190613060108.testdata.json     61912 Jun 13 21:31 imx7ulp_erpc_matrix_multiply_rpmsg_rtos_imxcm4.img        48 Jun 14 15:28 imx7ulp-evk.dtb -> zImage--4.9.88-r0-imx7ulp-evk-20190613060108.dtb        53 Jun 14 15:28 imx7ulp-evk-emmc.dtb -> zImage--4.9.88-r0-imx7ulp-evk-emmc-20190613060108.dtb        58 Jun 14 15:28 imx7ulp-evk-emmc-qspi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-emmc-qspi-20190613060108.dtb        55 Jun 14 15:28 imx7ulp-evk-ft5416.dtb -> zImage--4.9.88-r0-imx7ulp-evk-ft5416-20190613060108.dtb        55 Jun 14 15:28 imx7ulp-evk-lpuart.dtb -> zImage--4.9.88-r0-imx7ulp-evk-lpuart-20190613060108.dtb        53 Jun 14 15:28 imx7ulp-evk-mipi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-mipi-20190613060108.dtb        53 Jun 14 15:28 imx7ulp-evk-qspi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-qspi-20190613060108.dtb        52 Jun 14 15:28 imx7ulp-evk-sd1.dtb -> zImage--4.9.88-r0-imx7ulp-evk-sd1-20190613060108.dtb        64 Jun 14 15:28 imx7ulp-evk-sensors-to-i2c5.dtb -> zImage--4.9.88-r0-imx7ulp-evk-sensors-to-i2c5-20190613060108.dtb        55 Jun 14 15:28 imx7ulp-evk-wm8960.dtb -> zImage--4.9.88-r0-imx7ulp-evk-wm8960-20190613060108.dtb     70077 Jun 13 21:31 imx7ulp_m4_demo.img     59060 Jun 13 21:31 imx7ulp_rpmsg_lite_pingpong_rtos.img     59212 Jun 13 21:31 imx7ulp_rpmsg_lite_str_echo_rtos.img     79703 Jun 13 21:31 imx7ulp_wireless_uart_bridge.img    623986 Jun 13 21:08 modules--4.9.88-r0-imx7ulpevk-20190613060108.tgz        48 Jun 14 15:28 modules-imx7ulpevk.tgz -> modules--4.9.88-r0-imx7ulpevk-20190613060108.tgz        24 Jun 14 15:28 u-boot.imx -> u-boot-sd-2017.03-r0.imx        24 Jun 14 15:28 u-boot-imx7ulpevk.imx -> u-boot-sd-2017.03-r0.imx        24 Jun 14 15:28 u-boot-imx7ulpevk.imx-sd -> u-boot-sd-2017.03-r0.imx        24 Jun 14 15:28 u-boot.imx-sd -> u-boot-sd-2017.03-r0.imx    465920 Jun 13 21:31 u-boot-sd-2017.03-r0.imx        47 Jun 14 15:28 zImage -> zImage--4.9.88-r0-imx7ulpevk-20190613060108.bin   6892912 Jun 13 21:08 zImage--4.9.88-r0-imx7ulpevk-20190613060108.bin     21223 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-20190613060108.dtb     21235 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-emmc-20190613060108.dtb     21695 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-emmc-qspi-20190613060108.dtb     21213 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-ft5416-20190613060108.dtb     21223 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-lpuart-20190613060108.dtb     21229 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-mipi-20190613060108.dtb     21687 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-qspi-20190613060108.dtb     21487 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-sd1-20190613060108.dtb     21415 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-sensors-to-i2c5-20190613060108.dtb     24195 Jun 13 21:08 zImage--4.9.88-r0-imx7ulp-evk-wm8960-20190613060108.dtb        47 Jun 14 15:28 zImage-imx7ulpevk.bin -> zImage--4.9.88-r0-imx7ulpevk-20190613060108.bin        48 Jun 14 15:28 zImage-imx7ulp-evk.dtb -> zImage--4.9.88-r0-imx7ulp-evk-20190613060108.dtb        53 Jun 14 15:28 zImage-imx7ulp-evk-emmc.dtb -> zImage--4.9.88-r0-imx7ulp-evk-emmc-20190613060108.dtb        58 Jun 14 15:28 zImage-imx7ulp-evk-emmc-qspi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-emmc-qspi-20190613060108.dtb        55 Jun 14 15:28 zImage-imx7ulp-evk-ft5416.dtb -> zImage--4.9.88-r0-imx7ulp-evk-ft5416-20190613060108.dtb        55 Jun 14 15:28 zImage-imx7ulp-evk-lpuart.dtb -> zImage--4.9.88-r0-imx7ulp-evk-lpuart-20190613060108.dtb        53 Jun 14 15:28 zImage-imx7ulp-evk-mipi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-mipi-20190613060108.dtb        53 Jun 14 15:28 zImage-imx7ulp-evk-qspi.dtb -> zImage--4.9.88-r0-imx7ulp-evk-qspi-20190613060108.dtb        52 Jun 14 15:28 zImage-imx7ulp-evk-sd1.dtb -> zImage--4.9.88-r0-imx7ulp-evk-sd1-20190613060108.dtb        64 Jun 14 15:28 zImage-imx7ulp-evk-sensors-to-i2c5.dtb -> zImage--4.9.88-r0-imx7ulp-evk-sensors-to-i2c5-20190613060108.dtb        55 Jun 14 15:28 zImage-imx7ulp-evk-wm8960.dtb -> zImage--4.9.88-r0-imx7ulp-evk-wm8960-20190613060108.dtb

I chose image: core-image-base-imx7ulpevk-20190613060108.rootfs.sdcard.bz2

But, I am not sure which dtb file I should choose.

So, I gave it a try.

I tested all the `.dtb` files

imx7ulp-evk.dtb
imx7ulp-evk-emmc.dtb
imx7ulp-evk-emmc-qspi.dtb
imx7ulp-evk-ft5416.dtb
imx7ulp-evk-lpuart.dtb
imx7ulp-evk-mipi.dtb
imx7ulp-evk-qspi.dtb
imx7ulp-evk-sd1.dtb
imx7ulp-evk-sensors-to-i2c5.dtb
imx7ulp-evk-wm8960.dtb
zImage--4.9.88-r0-imx7ulp-evk-20190613060108.dtb

with both jumper J1 on 1-2 and 3-4.

and saved them via

setenv fdt_file PATH_TO_FILE.dtb && saveenv && boot

None of them work. Among them 

imx7ulp-evk-emmc-qspi.dtb
imx7ulp-evk-qspi.dtb

keep printing 

mmc0: Switching to 3.3V signalling voltage failed

regardless of J1 jumper.

The rest show no response to 

dmesg | grep wifi

as well as failing of:

ifconfig wlan0 up

ifconfig: SIOCGIFFLAGS: No such device

I occasionally observe 

random: crng init done

[diegoadrian]

Hello,

Unfortunately, we are unable to assist you, since the i.MX7ULP is still in pre-production and we do not have information about the product. That is the reason why there is not enough information about the product. 

I recommend you to go with your DFAE. They could help you with this problem.

I apologize for the inconveniences this could give you.

Best regards,

Diego.