diff options
| author | Nicolas Dechesne <nicolas.dechesne@linaro.org> | 2015-07-28 16:34:10 +0200 |
|---|---|---|
| committer | Nicolas Dechesne <nicolas.dechesne@linaro.org> | 2015-07-28 16:34:10 +0200 |
| commit | e7c796224d1440d01ed282b78ae0030a7d9d613c (patch) | |
| tree | d184c21afe5efacba186afbca5f789e144b31a6a /ubuntu | |
| parent | b3c843e2f9068d44c7a49f9e9bcd5c3f1b1f1dbc (diff) | |
snapdragon: add wlan workaround
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Diffstat (limited to 'ubuntu')
| -rw-r--r-- | ubuntu/boards/snapdragon/README.textile.in | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ubuntu/boards/snapdragon/README.textile.in b/ubuntu/boards/snapdragon/README.textile.in index d3a1942..397e27e 100644 --- a/ubuntu/boards/snapdragon/README.textile.in +++ b/ubuntu/boards/snapdragon/README.textile.in @@ -435,8 +435,20 @@ Firefox is using Gstreamer as its main media framework, as a consequence, if you h4. Known issues and limitations +* WLAN might not work properly. There is a race condition during the boot, and wlan might not work properly, there are 2 workarounds for now: +** at boot, before starting the desktop interface, run: @modprobe -r ath6kl_sdio@, then @modprobe ath6kl_sdio@. That needs to be done at each boot +** for a more permanent workaround, run the following commands: + +bc. sudo mkdir /mnt +sudo mount /dev/disk/by-partlabel/userdata /mnt +sudo cp -a /lib/firmware/* /mnt/lib/firmware/ +sudo umount /mnt +reboot + * The serial/uart driver does not support high speed transfer, and is limited to 115200 speed. Since UART is used between the on-boart Bluetooth devices and the SoC, this limits the bandwidth between Bluetooth device and the Snapdragon 600. Some use cases such as Bluetooth audio cannot work properly at such low speed. Some other use cases such as data transfer will work but slower than expected. Suppport for high speed UART is being implemented, and will be released in a future release. + * Some software codecs might not be installed by default; you might install additional codecs such as @gstreamer1.0-plugins-ugly@. + * Once you have flashed the boot partition with a valid boot image, the board will automatically boot that image when powered on. To avoid automatically booting you can jumper the board as explained in this "page":http://mydragonboard.org/2013/forcing-ifc6410-into-fastboot/ for IFC6410. To boot the ERAGON600 board in fastboot mode, please refer @section 7.4.2 Fastboot mode@ on @Software Reference Manual@ at "eInfochips support centre":http://www.supportcenter.einfochips.com/. If you cannot use this method and still needs to reboot into fastboot mode, you can erase the boot partition on a running target using the following command @sudo cat /dev/zero > /dev/disk/by-partlabel/boot@ h4. Feedback and Support |