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Commit eefe3a09 authored by Ricardo Cañuelo's avatar Ricardo Cañuelo Committed by Sjoerd Simons
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boards/chromebooks: add sarien board documentation

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---
title: Sarien Chromebooks
---
`sarien` is a board name for x86_64-based Chromebooks. Some examples are:
- [Dell Latitude 5400 Chromebook Enterprise](https://www.dell.com/en-us/work/shop/dell-laptops-and-notebooks/dell-latitude-5400-chromebook-enterprise/spd/latitude-14-5400-chrome-laptop/xctolc540014us1)
- [Dell Latitude 5300 2-in-1 Chromebook Enterprise](https://www.dell.com/en-us/work/shop/cty/pdp/spd/latitude-13-5300-2-in-1-chrome-laptop)
The specs for these chromebooks vary in terms of format, display, connectivity
and devices, but they are based on Intel Whiskey Lake 64 bit CPUs
such as the Celeron 4305U.
### Debugging interfaces
The Dell Latitude 5400 Chromebook Enterprise has been flashed and tested
with a [Servo Micro](../../01-debugging_interfaces) interface and a
RTL8152-based USB-Ethernet adapter. Note that these devices don't
support [CCD](../../02-ccd).
#### Network connectivity
An external USB-Ethernet dongle based on the Realtek RTL8152 can be used
to provide Ethernet connectivity in Depthcharge. Alternatively, A Servo v4 can be
used together with the Servo Micro to provide an Ethernet interface,
although this hasn't been tested yet.
#### Known issues
See [Common issues](../common_issues.md).
### Example kernel command line arguments
```
earlyprintk=uart8250,mmio32,0xde000000,115200n8 console_msg_format=syslog console=ttyS0,115200n8 root=/dev/nfs ip=dhcp rootwait rw nfsroot=192.168.2.100:/srv/nfs/chromebook,v3 nfsrootdebug
```
The IP and path of the NFS share are examples and should be adapted to
the test setup.
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