Creating a current armbian-Image with network-fix

[Dippywood]

Hi,

In order to make this a a little more update resistant, you might find the following script useful

Code:

#!/bin/bash

DTB_NAME=sun50i-a64-sopine-baseboard.dtb
DTB_PATH=/boot/dtb/allwinner
TMPFILE=/tmp/tmp.dts
NEWFILE=/tmp/new.dts

clean_up() {
        rm $TMPFILE $NEWFILE > /dev/null 2>&1
}

if [ ! -f $DTB_PATH/$DTB_NAME ]
then
        echo dtb file not found
        exit 999
fi


dtc -I dtb -O dts -o $TMPFILE $DTB_PATH/$DTB_NAME > /dev/null 2>&1
if [ $? != 0 ]
then
        echo Cannot extract dts from $DTB_PATH/$DTB_NAME
        exit 998
fi

retcode=0
grep 'allwinner,tx-delay-ps' $TMPFILE > /dev/null 2>&1
if [ $? != 0 ]
then
        sed -e '/ethernet@1c30000 {$/,/phandle = <0x88>;/!b;/phandle = <0x88>;/a\\t\t\tallwinner,tx-delay-ps = <500>;' $TMPFILE > $NEWFILE
        if [ $? != 0 ]
        then
                echo Could not update temporary DTS file
                retcode=997
        else
                dtc -O dtb -o $DTB_PATH/$DTB_NAME -b 0 $NEWFILE > /dev/null 2>&1
                if [ $? != 0 ]
                then
                        echo Could not create new dts file
                        retcode=996
                fi
        fi

else
        echo Fix already in place
fi

clean_up

exit $retcode

This will check whether the supplied update is in place, and, if not, apply it using SED.

How you use this is up to you - perhaps putting a call to it in rc.local... If the card boots, and the fix is not present then it will be applied and all should be well for the next boot.

If you want to test it first on a mounted image, simply adjust the value of DTB_PATH.

I hope that it is found useful, but use as your own risk, no guarantees of any sort etc etc