OLPC Firmware Q2B11

From OLPC
Jump to: navigation, search
  This page is monitored by the OLPC team.

OLPC Firmware Production Release Q2B11 - 2006-12-25

This is the update release for the B-test build.

File:Olpc-Q2B11.rom

MD5: ccd0acbfbbc681fbb9a083c0b0e5916b olpc-Q2B11.rom

Changes since Q2A71

  • EC: update to B11
  • EC: Fix battery over-charging when percentage is 100%.
    • Implement two mechanisms to prevent over charging.
    1. To always turn off CHG_ON when battery is not in charging mode.
    2. Add a time out for charging.
      • fast charging (system off) is 160 minutes for 0 ~ 100%.
      • slow charging (system on) is 320 minutes for 0 ~ 100%.

Installation Caveats

  • If you have a B1 system:
  1. Perform the auto-reinstall procedure at http://wiki.laptop.org/go/Autoreinstallation_image before upgrading to this firmware version
  2. DO NOT use olpcflash to write new firmware images. Doing so will erase the manufacturing data that was added at the factory.
  • After you reflash, you must power cycle by physically removing power from the system. A warm-start or button-induced restart is not sufficient. Please remove both the battery pack and wall adapter for 10 seconds.

ATest users only: If you use olpcflash to write this image, you must use the --brick option.
Example: olpcflash --brick -w image.rom
This will update your EC code.

Known issues

  • Auto-repeat is slow on some USB keyboards
  • NVRAM storage for configuration variables is not yet implemented.
  • JFFS2 does not handle ECC
  • The boot menu is incomplete
  • Dirctory symlinks have a problem.

ATest -- Infineon RAMs only

Thise is a special purpose image. Do not use except on A-test boards with Infineon RAMS.

For more info see Upgrading_to_LinuxBIOS#Checking_your_DRAM_type

File:Olpc-Q2B11 CL2.5.rom

MD5: 55205a5ab58c95f7e555ec7199418b62 olpc-Q2B11_CL2.5.rom

Retrieved from "http://wiki.laptop.org/mediawiki/index.php?title=OLPC_Firmware_Q2B11&oldid=20907"