The proposed fix: http://www.sakoman.com/cgi-
bin/gitweb.cgi?p=u-boot.git;a=commitdiff;h=56b18c5248a1478b6d6263e428ada02af174df77

(if gets rebased, look for "ARMV7: OMAP4: Fix Panda pinmux setting to
enable Wifi/BT Module" at omap4-exp branch)

-- 
omap4: u-boot overrides pin-muxing settings from x-loader
https://bugs.launchpad.net/bugs/645167
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Developers, which is a direct subscriber.

Status in Linaro U-Boot: New
Status in “u-boot-linaro” package in Ubuntu: New
Status in “u-boot-linaro” source package in Maverick: New

Bug description:
u-boot is able to define a complete pin-muxing setting.
On OMAP4 today, we rely on x-loader for this purpose.

So we shall either:
1) deactivate pin-muxing setting for omap4, or
2) or use it and ensure we have the latest pin-mux updates integrated

Option 1 was used here: 
http://dev.omapzoom.org/?p=bootloader/u-boot.git;a=commit;h=cc49b2f4915bb550294b8c74f292e81cfdb11f4d

Today for example, the pin-mux for GPMC_A22 is not properly set in u-boot, 
resulting in non-functional BT feature.
For this specific BT issue, the correct pin-mux is described in this x-loader 
patch (included into x-loader-omap4 package):
http://gitorious.org/pandaboard/x-loader/commit/5d05eafab768f4b88aae4f890fc26fd5eb3002ce



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