Riko
May 2, 2017, 11:39pm
1
Hello everyone,
I have question regarding compiling overlay for cape,
I got the example from :https://github.com/beagleboard/bb.org-overlays/tree/master/src/arm
Some information that I can collect,
#include <dt-bindings/board/am335x-bbw-bbb-base.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/pinctrl/am33xx.h>
`#1 SMP Fri Mar 17 13:08:22 UTC 2017 armv7l GNU/Linux
`
the error :
dtc EBB-GPIO-Example.dts -O dtb -o EBB-GPIO-Example-00A0.dtbo Error: EBB-GPIO-Example.dts:17.1-9 syntax error FATAL ERROR: Unable to parse input tree
Does anyone know how to fix it ? or experience the same thing ?
Without the source, no one will be able to give you a correct answer. That is, the source file EXACTLY how it is when you got that error.
Additionally. This is an error that one typically gets, when trying to compile one of those overlays without compiling it from the bb-overlay git project. e.g. downloading one file, and trying ot compile it manually through dtc. Instead of putting your source file into the src/arm directory, and moving into the git root directory and issuing “make”. Two ways to go about that, but we can get to that later.
So, knowing what command you used EXACTLY what command when you attempted to build your file would be necessary.
Riko
May 3, 2017, 2:10am
4
Yes I only use the “include” for a test on GPIO,
how can I use one of the overlay and modify it ? thanks
The complete code :
/*
Copyright © 2012 Texas Instruments Incorporated - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Purpose License Version 2 as * published by the Free Software Foundation * * Original from: github.com/jadonk/validation-scripts/blob/master/test-capemgr/ * * / /dts-v1/; /plugin/; #include <dt-bindings/board/am335x-bbw-bbb-base.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/pinctrl/am33xx.h> /{ compatible = “ti,beaglebone”, “ti,beaglebone-black”; part-number = “EBB-GPIO-Example”; version = “00A0”; fragment@0 { target = <&am33xx_pinmux>; overlay { ebb_example: EBB_GPIO_Example { pinctrl-single,pins = < 0x070 0x07 // P9_11 PINS$28 GPIO0_30 = 30 Output Mode7 pulldown 0x074 0x37 // P9_13 PINS$29 GPIO0_31 = 31 Input Mode7 pullup / OUTPUT GPIO(mode7) 0x07 pulldown, 0x17 pullup, 0x?f no pullup/down / / INPUT GPIO(mode7) 0x27 pulldown, 0x37 pullup, 0x?f no pullup/down */ >; }; }; }; fragment@1 { target = <&ocp>; overlay { gpio_helper { compatible = “gpio-of-helper”; status = “okay”; pinctrl-names = “default”; pinctrl-0 = <&ebb_example>; }; }; }; };
You want a definitive answer ? Learn how device tree overlays work. Modify
Which is to say the question you pose it something like "My car won;t
Dont call "dtc" directly.. you have "#include "'s dtc doesn't know how
run:
make arm/EBB-GPIO-Example.dtbo
so the gcc preprocessor which is defined in the makefile runs..
Regards,
Riko
May 3, 2017, 3:01am
7
@William Hermans
#include <dt-bindings/board/am335x-bbw-bbb-base.h>#include <dt-bindings/gpio/gpio.h>#include <dt-bindings/pinctrl/am33xx.h>
/{
fragment@0 {
__overlay__ {
no reason for the 3 includes if your just going to hard code ^...
Regards,
easy like i sad..(adjusted for the ./src/ path)
make src/arm/EBB-GPIO-Example.dtbo
Here's the full step by step:
voodoo@hestia:/opt/git_repo$ git clonehttps://github.com/beagleboard/bb.org-overlays
voodoo@hestia:/opt/git_repo/bb.org-overlays$ gedit src/arm/EBB-GPIO-Example.dts
<copy your code block in>
voodoo@hestia:/opt/git_repo/bb.org-overlays$ make src/arm/EBB-GPIO-Example.dtbo
voodoo@hestia:/opt/git_repo/bb.org-overlays$ ls -lh src/arm/EBB-GPIO-Example.dt*
Regards,
Riko
May 3, 2017, 3:25am
10
Wow, thank you very much for that, I’ll try and return to you later on.
Just remember to use the repo
https://github.com/beagleboard/bb.org-overlays
The "examples" aren't just there to look pretty..
The repo is used in production, and everything is abstracted out to
Regards,
No, you're right, it's not a problem. But it helps if you ask a question.
I messed that answer all up., Anyhow the point is you need to ask specific
Riko
May 3, 2017, 4:47am
15
hehehe, fsck yourself if you don’t know how to answer…yes it is the sky is blue…and don’t worry to answer if you don’t know…as simple as that.
Done mate
Riko
May 3, 2017, 5:41am
16
Almost get there but there is error?
make src/arm/EBB-GPIO-Example.dtbo DTC src/arm/EBB-GPIO-Example.dtbo /bin/sh: 1: scripts/basic/fixdep: Permission denied Makefile:136: recipe for target ‘src/arm/EBB-GPIO-Example.dtbo’ failed make[1]: *** [src/arm/EBB-GPIO-Example.dtbo] Error 126 Makefile:100: recipe for target ‘src/arm/EBB-GPIO-Example.dtbo’ failed make: *** [src/arm/EBB-GPIO-Example.dtbo] Error 2
Riko
May 3, 2017, 5:46am
17
Fix it, thanks a lot for the clues
ls -alh total 12K drwxr-xr-x 2 debian debian 4.0K May 2 11:02 . drwxr-xr-x 3 debian debian 4.0K May 2 11:02 … -rw-r–r-- 1 debian debian 656 May 1 17:23 fixdep chmod +x fixdep cd … cd … make src/arm/EBB-GPIO-Example.dtbo DTC src/arm/EBB-GPIO-Example.dtbo
Except, I had a really good idea what your problem was, just that you were