XO1.5 Bringup

This page lists goals and plans for initial bringup of the XO 1.5 (CL1B) board.

Goals

• Embedded Controller and power distribution working
• Memory controller working and memory stable (memtest86)
• OLPC display working
• Keyboard/mouse working
• USB working
• SD memory cards working
• Boots Linux kernel from USB and SD card
• Audio

Non-goals

• Camera input (driver won't be ready in time)
• Power management from Linux
• Power management from OFW
• SDIO WLAN
• X

Personnel in Taiwan

• Wad, Richard, and Mitch from OLPC
• Gordon Chu (PM), Beckham Chen (EE), Danny Tsai (power), Gary Chiang (EE), Bryan Ma (firmware) from Quanta
• Harald Welte and BIOS/memory controller expert from Via

Tools

• Cheetah SPI programmer qty 1 (Richard)
• Artec LPC dongle (FLASH + port 80) qty 3 (Mitch 1, Richard 2)
• Cleverscope qty 1 (Mitch)
• PROMjet SPI FLASH emulator qty 1 (Mitch)
• OLPC serial port dongles + cables qty 5 (Mitch 2, Richard 3)
• High speed oscilloscope for memory checkout - (Quanta)

Sequence

• Richard arrives several days before bringup, to work together with Bryan Ma on final EC code.
• Wad, Mitch, and the boards arrive and bringup starts.
  • Get the EC running.
  • Basic power supply operation and sequencing
  • Main CPU booting
• Via becomes involved (VX855 support)
  • Bring up memory controller
  • VGA Video output
  • Start memory stability tests
  • OFW generally functional
• Harald Welte arrives
  • Linux boot
• Team members work in parallel on their respective areas of expertise