XO1.75 Bringup

This page lists goals and plans for initial bringup of the XO 1.75 A1 motherboard, the first prototype of the XO-1.75 Laptop.

Status

Note that a check in any one of the two columns is generally sufficient to prove that the hardware works.

Bringup status

Subsystem	OFW	OFW->Linux
CPU Boot
Serial port
Audio playback (Int/Ext)
External IDE	Y	Y	Y
Phison chip IDE	Y	Y	Y
USB	Y USB 1.1 only, flaky	Y	Y
SD	?	Y	Y
SDIO WLAN	?	Y	Y
DCON	?	Y	?
Suspend + resume	Y	?	?
C-state switching	Y	?	?
Xorg	Y	n/a	Y
VIA framebuffer driver	Y9318	n/a	Y with vmalloc=256M

Goals

The goal of a A-phase board bring-up is get a small number of boards to an acceptable state of functionality. At this point, a larger number of boards are modified to match and distributed for both extended testing of basic functionality (esp. memory stability) and development of software to access further functionality.

The following are the goals of this bringup:

Personnel in Taiwan

• Wad (EE), Richard (EC/OFW), Mitch (OFW), and Chris (Linux) from OLPC
• Mars (PM), Beckham Chen (EE), Gary Chiang (EE), Bryan Ma (EC Firmware) from Quanta R&D

Sequence of Events

Dates too vague yet to book travel

Linux

After initial boot, this is mainly driver testing of hardware as functionality is confirmed with OFW.

• Initial boot
• USB
• SD
• Video
• DCON and OLPC display
• Audio

Miscellanious

Documentation

Early documentation may be obtained from a secure FTP site on dev.laptop.org:

sftp://dev.laptop.org/home/docs/1.75/
sftp://dev.laptop.org/home/docs/marvell/

If you already have a login on dev, let wad know and he will get you access privileges.

Information is also available on the Team Tech wiki.

Much of the documentation will be available on the XO 1.75 A1 board page.

Lodging

We will be staying at:

• The Riviera

Our recommended medical provider is:

• The Taipei Adventist Hospital - English speaking, decent care, just make sure to bring your own soap, towel, and arrange for outside food delivery.