[yocto] [meta-raspberrypi] Problem enabling w1-gpio

[Markus W]

Hi again!

I should have mentioned that the image will also include a meta-mender
layer for updates. Additionally an extra layer for setting up the wifi &
ble for rpi and an application layer. So I am looking for an automated
approach where I can make production updates through mender.

I also have tried the RPI_EXTRA_CONFIG flag to set dtoverlay that didn't
make any difference.

INHERIT += "mender-full"
MACHINE = "raspberrypi3"
RPI_USE_U_BOOT = "1"

MENDER_PARTITION_ALIGNMENT = "4194304"
MENDER_BOOT_PART_SIZE_MB = "40"
IMAGE_INSTALL_append = " nodejs bluez5 kernel-image kernel-devicetree
mender-wait-for-timesync"
IMAGE_FSTYPES_remove += " rpi-sdimg"

DISTRO_FEATURES_append = " bluez5 bluetooth systemd"
VIRTUAL-RUNTIME_init_manager = "systemd"
DISTRO_FEATURES_BACKFILL_CONSIDERED = "sysvinit"
VIRTUAL-RUNTIME_initscripts = ""
IMAGE_FSTYPES = "ext4"
SDIMG_ROOTFS_TYPE = "ext4"

# SPI, i2c and w1-gpio settings
ENABLE_SPI_BUS = "1"
ENABLE_I2C = "1"
RPI_EXTRA_CONFIG = ' \n \
    dtoverlay=w1-gpio \n \
    '


On Sat, 6 Oct 2018 at 03:13, Khem Raj <raj.khem at gmail.com> wrote:

> On Fri, Oct 5, 2018 at 9:27 AM Andrei Gherzan <andrei at gherzan.ro> wrote:
> >
> > Hi Markus,
> >
> > On Fri, Oct 5, 2018 at 4:28 PM Markus W <markus4dev at gmail.com> wrote:
> >>
> >> Hi!
> >>
> >> I'm creating a yocto image (sumo) for the raspberrypi and got stuck on
> how to enable the one-wire interface on boot.
> >>
> >> I have enabled the SPI bus and I2C in my local.conf file.
> >>
> >> ENABLE_SPI_BUS = "1"
> >> ENABLE_I2C = "1"
> >>
> >> and checked that they are loaded on boot.
> >>
> >> I'm struggling to figure out where to set  "dtoverlay=w1-gpio" and how
> to enable the w1-gpio module on boot. The /boot/config.txt file doesn't
> exist by default after startup. If I create this file with the line above
> directly on the rpi and reboot it, the w1-gpio interface is still not
> enabled.
> >
> >
> > /boot when you run up the image is on the rootfs while the file you are
> looking for is in the boot partition. You will need to mount (or set a boot
> mount - fstab, systemd etc) the boot partition (p1) and you will see the
> file afterwards. Alternatively, just mount the SD card's partitions on your
> working station and modify the file offline.
> >
>
> if one starts using wic image instead of old sd-card image types then
> boot is automounted.
>
> Just add
>
> IMAGE_FSTYPES += "wic.xz"
>
> for nice xz compressed wic image.
>
> > ---
> > Andrei
> > --
> > _______________________________________________
> > yocto mailing list
> > yocto at yoctoproject.org
> > https://lists.yoctoproject.org/listinfo/yocto
>
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