doc: boards: ehl_crb: Reuse net_boot.rst

Reuse net_boot.rst for network boot, moving extra docs to notes.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>

Author: finikorg

boards/x86/ehl_crb/doc/index.rst

@@ -60,100 +60,28 @@ Booting the Elkhart Lake CRB Board using UEFI
 Booting the Elkhart Lake CRB Board over network
 ===============================================
 
-Build Zephyr image
-------------------
+.. include:: ../../common/net_boot.rst
 
-#. Follow `Build Zephyr application`_ steps to build Zephyr image.
-
-Prepare Linux host
-------------------
-
-#. Install DHCP, TFTP servers. For example ``dnsmasq``
-
-   .. code-block:: console
-
-      $ sudo apt-get install dnsmasq
-
-#. Configure DHCP server. Configuration for ``dnsmasq`` is below:
-
-   .. code-block:: console
-
-      # Only listen to this interface
-      interface=eno2
-      dhcp-range=10.1.1.20,10.1.1.30,12h
-
-#. Configure TFTP server.
-
-   .. code-block:: console
-
-      # tftp
-      enable-tftp
-      tftp-root=/srv/tftp
-      dhcp-boot=zephyr.efi
-
-   ``zephyr.efi`` is a Zephyr EFI binary created above.
-
-#. Copy the Zephyr EFI image :file:`zephyr/zephyr.efi` to the
-   :file:`/srv/tftp` folder.
-
-    .. code-block:: console
-
-       $ cp zephyr/zephyr.efi /srv/tftp/
-
-#. Restart ``dnsmasq`` service:
-
-   .. code-block:: console
-
-      $ sudo systemctl restart dnsmasq.service
-
-Prepare Elkhart Lake CRB board for network boot
------------------------------------------------
-
-#. Enable boot from PXE. Go to EFI shell and make sure that the first boot
-   option is ``UEFI PXEv4``.
-
-   .. code-block:: console
-
-      Shell> bcfg boot dump
-      Option: 00. Variable: Boot0007
-        Desc    - UEFI PXEv4 (MAC:6805CABC1997)
-        DevPath - PciRoot(0x0)/Pci(0x1C,0x0)/Pci(0x0,0x0)/MAC(6805CABC1997,0x0)/IPv4(0.0.0.0)
-        Optional- Y
-      ...
-
-#. If UEFI PXEv4 is not the first boot option use ``bcfg boot mv`` command to
-   change boot order
-
-   .. code-block:: console
-
-      Shell> bcfg boot mv 7 0
-
-Booting Elkhart Lake CRB
-------------------------
-
-#. Connect the board to the host system using the serial cable and
-   configure your host system to watch for serial data.
-
-#. Power on the Elkhart Lake CRB board.
-
-#. Verify that the board got an IP address:
+.. note::
+   To enable PXE boot for Elkhart Lake CRB board do the following:
 
-   .. code-block:: console
+   #. Enable boot from PXE. Go to EFI shell and make sure that the first boot
+      option is ``UEFI PXEv4``.
 
-      $ journalctl -f -u dnsmasq
-      dnsmasq-dhcp[5386]: DHCPDISCOVER(eno2) 00:07:32:52:25:88
-      dnsmasq-dhcp[5386]: DHCPOFFER(eno2) 10.1.1.28 00:07:32:52:25:88
-      dnsmasq-dhcp[5386]: DHCPREQUEST(eno2) 10.1.1.28 00:07:32:52:25:88
-      dnsmasq-dhcp[5386]: DHCPACK(eno2) 10.1.1.28 00:07:32:52:25:88
+      .. code-block:: console
 
-#. Verify that network booting is started:
+         Shell> bcfg boot dump
+         Option: 00. Variable: Boot0007
+           Desc    - UEFI PXEv4 (MAC:6805CABC1997)
+           DevPath - PciRoot(0x0)/Pci(0x1C,0x0)/Pci(0x0,0x0)/MAC(6805CABC1997,0x0)/IPv4(0.0.0.0)
+           Optional- Y
+         ...
 
-   .. code-block:: console
+   #. If UEFI PXEv4 is not the first boot option use ``bcfg boot mv`` command to
+      change boot order
 
-      $ journalctl -f -u dnsmasq
-      dnsmasq-tftp[5386]: sent /srv/tftp/zephyr.efi to 10.1.1.28
+      .. code-block:: console
 
-#. When the boot process completes, you have finished booting the
-   Zephyr application image.
+         Shell> bcfg boot mv 7 0
 
 .. _EHL: https://www.intel.com/content/www/us/en/products/docs/processors/embedded/enhanced-for-iot-platform-brief.html