OLPC Firmware q3a52

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This release has been pulled -- no longer available.

Contents

OLPC Firmware Release q3a52 2010-09-09

Works on XO-1.5 A1, A2, B1, B2, B3, C1 ,C2 and C3 systems, but does not work on any XO-1 machines.

This release has been pulled -- no longer available. Download: q3a52.rom

Changes since q3a50

Open Firmware svn 1946

  • OLPC XO-1.5 - Added keyjector script for XO-1.5, also tweaked XO-1 keyject.bth to reflect the latest olpc.bth .
  • OLPC XO-1.5 - trac 10344 - Fixed the kb-suspend command to freeze the screen properly, so it doesn't fade out between keystrokes.
  • OLPC XO-1.5 - Changed some of the port 80 callouts in romreset.bth to better delineate major substeps including init-codec.
  • Fixed stack pile-up problem in $copy-all (pack should have been place) and added running stack comments to the affected source code.
  • OLPC - setup BIOS Data Area when booting Linux, because recent Linux versions now use the "lowmem size" BDA field.
  • OLPC XO-1.5 - added commentary describing the address bit layout for the SDRAM Mode Register Set cycle.
  • x86 - memtest86 - Completed the process begun by svn 1938 by reverted the change in svn 1937 and going back to -Os . -Os now works with both GCC 4.2.1 and GCC 4.4.3 (-O1 also works with both).
  • SD driver - added the ability to disable high-speed operation on specific platforms.

EC code is version 1.9.31

  • 20 second delay for SD card power off on S3 and S5 transitions

WLAN firmware is Libertas thinfirm 9.0.7.p2

  • no change


Which Firmware Do You Have?

The best method for finding out what firmware version you have on a laptop depends on whether the laptop is secured or not, and what operating state it is in.

Unsecured Laptop

Obtain the Ok prompt, the firmware version is displayed in the startup banner, thus:

 OLPC ..., ... memory installed, ..., S/N SHF7250024D
 OpenFirmware  q3a52 ...   EC Firmware Ver:...
               ^^^^^

You can also obtain the built date:

 ok .built

This is the date and time that this image of the firmware was built by the release engineer.

Secured Laptop

Power up the laptop with the "check" game button held down. You will be asked to Release the game keys to continue. Release the "check" game button and watch carefully. For a short time the startup banner will be displayed, like this:

 OLPC ..., ... memory installed, ..., S/N SHF7250024D
 OpenFirmware  q3a52 ...   EC Firmware Ver:...
               ^^^^^

Alternatively, if the laptop is already booted, go to the Sugar home view, click on the icon at the centre of the screen and select "My Settings" then "About my Computer." The firmware version is displayed there.

Alternatively, in the Terminal activity or a text console, type:

 cat /proc/device-tree/openprom/model

or

 cat /ofw/openprom/model

With certain older firmware versions, if the operating system will not start, and the laptop is secured, you will not be able to obtain the firmware version using the above methods, so our recommendation is to go ahead and upgrade anyway. The procedure is safe and will not do anything if you already have up-to-date firmware.


Installation

When installing new firmware, you must have a well-charged battery and the AC adapter plugged in. The firmware update code will not proceed otherwise. Possible error messages are:

error message how to fix
AC not present plug in the power cord, check the battery LED is on, then try again.
No external power plug in the power cord, check the battery LED is on, then try again,
No battery plug in the battery, check the latches, then try again, or try another battery,
Battery low allow more time for the battery to charge, then try again, or try another battery.

Unsecured Laptop

This section is for unsecured laptops. Most XO-1.5 and XO-1.75 laptops are unsecured. Most developer XO laptops are unsecured. To unsecure your laptop, follow the instructions at Activation and Developer Keys.

You may install using either:

  • a USB drive or SD card,
  • the laptop's internal drive,
  • a network.

Choose one.

Using a USB drive or SD card

  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • insert the USB drive or SD card,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if the downloaded file is on a USB drive, type:
 flash u:\q3a52.rom
  • if the downloaded file is on an external SD card:
 flash sd:\boot\q3a52.rom
  • wait for the laptop to reboot itself,
  • remove the USB drive or SD card.

(Expert users may remove the USB drive after the message "Got firmware" ... at this stage the file has been read and closed.)

Using the laptop internal drive

An alternate method is to download the firmware file to the laptop internal drive and then install from the internal drive.

  • start the laptop,
  • connect to a wireless or wired network,
su
cd /versions/boot/current/boot/
wget http://dev.laptop.org/pub/firmware/q3a52/q3a52.rom
  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if the downloaded file is on an XO-1, type:
flash n:\boot\q3a52.rom
  • if the file is on the internal SD card of an XO-1.5 or XO-1.75:
flash int:\boot\q3a52.rom

Using a network

You will need a compatible USB to ethernet adapter, or an open or WEP wireless access point, connected to the internet.

  • check the battery is inserted and locked,
  • check that the power cord is in place and the battery indicator is green,
  • turn on the laptop, and get to the 'ok' prompt. See Ok for more detail. You should see:
ok
  • if using wireless, type the essid of the wireless network:
essid mynetwork
  • if using a WPA wireless access point, type the WPA key for the network:
wpa passphrase
  • type the flash command using the download link above, but change all slash characters so they are backwards, for example:
flash http:\\dev.laptop.org\pub\firmware\q3a52\q3a52.rom

Secured Laptop

Secured laptops can only use flash firmware that has been signed. All mass-production machines had the latest firmware at the time of manufacture.

Upgrading firmware describes how to upgrade to a newer signed firmware release.

See also

  • Cheat codes for information about how game buttons control startup options.
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