Go to advanced search

by ctag
Thu Oct 04, 2018 11:21 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

Thanks, PhilE. I hate that I can't seem to catch fish on my own here. I took the sample dt-blob (https://github.com/raspberrypi/firmware/blob/master/extra/dt-blob.dts) and tweaked it with WL_ON, but must have done it incorrectly. The system behaves as it did before. I also don't see dt-blob.bin ment...
by ctag
Wed Oct 03, 2018 9:55 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

Still using the Murata part. The PCBs are already manufactured, so I can't change much about them at this point. If you're referring to the WL_REG_ON line, I can leave it out of config.txt, and then manually set it high after the system boots. It works about the same, brcmfmac sees something but doe...
by ctag
Wed Oct 03, 2018 8:52 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

If I change the overclock to 20, then brcmfmac is loaded automatically after the system boot. dtoverlay=sdio-wifi,poll_once=off,bus_width=4,sdio_overclock=20 gpio=41=op,dh dmesg: [ 3.975695] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) [ 4.109643] systemd-journald[104]: Received request to flush ru...
by ctag
Wed Oct 03, 2018 8:04 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

I looked at a clean raspbian image and noticed some of the overlays and device tree files were different. So I flashed a clean installation of Rasbian to test against. With the clean system image, all of the pins are INPUT, like PhilE said. I didn't see a /boot/overlays/sdio-sdhost.dtbo file, so I t...
by ctag
Wed Oct 03, 2018 5:19 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

dt-blob.dts is attached. I inherited this project, and have noticed that stock rasbian does not include this file. I read on one of the DT documentation pages that compute modules would probably want a custom dt-blob.bin, but I'm not sure how this one was generated. I tried renaming dt-blob.bin to d...
by ctag
Wed Oct 03, 2018 3:33 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

Re: DT overlay does not seem to have effect

Thanks PhilE. The raspi-gpio output is included. I'm still going over it, but so far haven't found anything that makes sense to me. BANK0 (GPIO 0 to 27): GPIO 0: level=1 fsel=0 func=INPUT GPIO 1: level=1 fsel=0 func=INPUT GPIO 2: level=1 fsel=0 func=INPUT GPIO 3: level=1 fsel=0 func=INPUT GPIO 4: le...
by ctag
Tue Oct 02, 2018 6:57 pm
Forum: Device Tree
Topic: DT overlay does not seem to have effect
Replies: 10
Views: 5198

DT overlay does not seem to have effect

Hi, I'm trying to reach an LBEE5KL1DX ( https://wireless.murata.com/RFM/data/lbee5kl1dx.pdf ) wireless chip from a Compute Module 3 over sdio. The SDIO pinout is: * GPIO34 -- SDIO_CLK * GPIO35 -- SDIO_CMD * GPIO36 -- SDIO_DATA_0 * GPIO37 -- SDIO_DATA_1 * GPIO38 -- SDIO_DATA_2 * GPIO39 -- SDIO_DATA_3...

Go to advanced search