[PATCH] ARM: dts: am437x-gp-evm: Boot fixes

Tony Lindgren tony at atomide.com
Tue Apr 22 12:01:32 PDT 2014

* Dave Gerlach <d-gerlach at ti.com> [140422 11:52]:
> This patch, along with patch here [1], fixes boot for am437x-gp-evm. The
> bootloader configures gpio5_7 to control the DDR3 termination regulator,
> the linked patch prevents that gpio bank from being reset and losing
> the previously configured state, and this patch binds the gpio to a
> regulator so the kernel is aware of the state of the gpio.
> [1] https://www.mail-archive.com/linux-omap@vger.kernel.org/msg102941.html

Setting up the GPIO regulator makes sense to me. But the hack in the
link above is potentially a nasty time bomb for anybody trying to
use GPIO bank 5 on that board.

What tests have been done that the GPIO bank behaves properly when
it's not reset?



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