greybus: arche-apb-ctrl: Add APB control driver

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It was messy to integrate both SVC, APB (and any other arche
platform specific control) into one single driver. Especially
due to cross-dependency.

AP first needs to bringup SVC, as SVC should enable clock to APB.
APB should come up before HUB, as due to some reason HUB wouldn't
enumerate APB's is APB comes up later.
And on top of that we should have clean picture of hardware description
in DT file.

So this patch introduces APB control driver. Mostly copied from original
arche-platform driver + fixed boot sequence.

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

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This commit is contained in:

Vaibhav Hiremath 2015-12-16 16:29:19 +05:30 • committed by Greg Kroah-Hartman

parent 7fa6065475

commit 5a78178718

2 changed files with 402 additions and 0 deletions

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2

drivers/staging/greybus/Makefile

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400

drivers/staging/greybus/arche-apb-ctrl.c

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