[meta-freescale] Enabling PTP on the Kernel

[vr roriz]

Hi everyone,

I am starting with the Yocto project now. My target is an imx7dsabresd. I
started by adding the meta-freescale layer. After that, I added the
meta-freescale-3rdparty layer (by intuition) because it was the only layer
repo making some reference to PTP when I git grep the repos.

I started by compiling an image-core-base image, ending up by compiling an
image-core-fullcmdline image. I added some extra packages like
openserver-ssh. I am able to boot the device and cross-compile objs for
it.  However, when I try to run the gPTP (generalized precision time
protocol) daemon from Avnu, it fails to configure timestamping. This
happens specifically when the daemon tries to execute:

err = ioctl( sd, SIOCSHWTSTAMP, &device );

Errno is then set as "Invalid argument". I was wondering if I have to
somehow explicitly enable PTP in my build (before I was using some given
pre-built image and I didn't have this issue). If so, could you provide me
some info on how to do it (in a dummy-beginner way)?

A next step will be to set the network-driver for eth0/eth1 as dynamically
linked. I've read I can do this by generating .cfg files but I am not sure
on what CONFIG_ to set as "=m". (Please ignore the last question if it is
out of the scope of this list.)

PS.:  I attached my boot log in this mail.

Thanks and BR!
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Thu Jan  1 00:00:04 1970: Populating dev cache
Thu Jan  1 00:00:04 1970: tar: dev/disk/by-label/Bootx20imx7ds: Cannot stat: No such file or directory
Thu Jan  1 00:00:04 1970: tar: Exiting with failure status due to previous errors
Thu Jan  1 00:00:04 1970: udev-cache: update failed!
Tue Jul 18 13:29:17 2017: Tue Jul 18 13:29:17 UTC 2017
Tue Jul 18 13:29:17 2017: INIT: Entering runlevel: 5
Tue Jul 18 13:29:17 2017: Configuring network interfaces... udhcpc (v1.24.1) started
Tue Jul 18 13:29:17 2017: Sending discover...
Tue Jul 18 13:29:20 2017: Sending discover...
Tue Jul 18 13:29:23 2017: Sending discover...
Tue Jul 18 13:29:23 2017: Sending select for XX.XX.XX.XX... 
Tue Jul 18 13:29:23 2017: Lease of XX.XX.XX.XX obtained, lease time 251201
Tue Jul 18 13:29:23 2017: /etc/udhcpc.d/50default: Adding DNS XX.XX.XX.XX 
Tue Jul 18 13:29:23 2017: /etc/udhcpc.d/50default: Adding DNS XX.XX.XX.XX 
Tue Jul 18 13:29:23 2017: done.
Tue Jul 18 13:29:23 2017: Starting system message bus: dbus.
Tue Jul 18 13:29:23 2017: Starting OpenBSD Secure Shell server: sshd
Tue Jul 18 13:29:23 2017:   generating ssh RSA key...
Tue Jul 18 13:29:26 2017:   generating ssh ECDSA key...
Tue Jul 18 13:29:26 2017:   generating ssh DSA key...
Tue Jul 18 13:29:28 2017:   generating ssh ED25519 key...
Tue Jul 18 13:29:28 2017: done.
Tue Jul 18 13:29:28 2017: Starting rpcbind daemon...done.
Tue Jul 18 13:29:28 2017: starting statd: done
Tue Jul 18 13:29:28 2017: Starting atd: OK
Tue Jul 18 13:29:28 2017: exportfs: can't open /etc/exports for reading
Tue Jul 18 13:29:28 2017: NFS daemon support not enabled in kernel
Tue Jul 18 13:29:28 2017: Starting system log daemon...0
Tue Jul 18 13:29:28 2017: Starting kernel log daemon...0
Tue Jul 18 13:29:28 2017: Starting crond: OK