powerpc/86xx: Basic GPIO support for GE Fanuc SBC610

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Basic support for the GPIO available on the SBC610 VPX Single Board Computer
from GE Fanuc (PowerPC MPC8641D).

This patch adds basic support for the GPIO in the devices I/O FPGA, the GPIO
functionality is exposed through the AFIX pins on the backplane, unless used
by an AFIX card.

This code currently does not support switching between totem-pole and
open-drain outputs (when used as outputs, GPIOs default to totem-pole).
The interrupt capabilites of the GPIO lines is also not currently supported.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

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This commit is contained in:

Martyn Welch 2008-11-07 14:15:42 +00:00 • committed by Kumar Gala

parent 09a3fba8c1

commit 965dc5fc55

4 changed files with 153 additions and 1 deletions

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6

arch/powerpc/boot/dts/gef_sbc610.dts

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2

arch/powerpc/platforms/86xx/Kconfig

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3

arch/powerpc/platforms/86xx/Makefile

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143

arch/powerpc/platforms/86xx/gef_gpio.c

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