XO-1.75/TODO List

This is a list of stuff we need to do for 1.75

Hiring

• project manager
• hardware designer
• kernel maintainer - porting android
• kernel developer - writing new code
• X developer
• multitouch UI graphics design / visual? Maybe on Sugar Labs staff
• multitouch UI engineer
• build engineer
• release manager

Software

Linux

• SPI driver
• setup new build machine
• Choose distro
• ALSA support for Realtek codec
• TCON support/debugging
• touchscreen driver
• C-state management
• X driver
  • 2D
  • 3D
• camera driver - same camera, different port
• pretty boot w/o DCON freeze hack
• acceler/magnet-ometer driver
• button GPIO event support
• power management in all its glory

EC

• new repository
• Power-up sequencing
• SPI driver
• PS2 keyboard/mouse
• battery - use 1wire interface, use new timer code
• jump to RAM (if doesn't work, need to mux pins)

OFW

• memory init
• SPI driver
• DCON driver
• Marvell USB driver
  • also deal with the hub
• Marvell SD driver
• Marvell NAND HW driver
• audio - Realtek codec
• TCON - init over I2C - support/debugging
• C-state management
• camera driver - same camera, different port for diags
• touchscreen diag
• accelerometer diag
• button GPIO support for startup and diags
• mfgdiags integration

Hardware

• Hardware Description
• XO-1.75 Bringup plans

A1

• touchscreen parameters
• touchscreen technology selection (interface choice is urgent)
• take unused pins over to something we can connect to after the fact
• schematics
• power distribution
• critical signals
• choose memory chips (single bank)
• choose NAND chips
• choose SPI FLASH chips

A2

• EC needs power control for uSD
• fix termination on camera clock. eliminate ferrites.
• Keep outs on serial connectors!!!
• move camera connector back (again)
• change jtag connector

B1 and later

• TCON specs
• move from expensive PCB to FR4
• choose LCD panel