[U-Boot] [PATCH 0/2] arm nomadik: gpio and i2c

[Alessandro Rubini <rubini-list@gnudd.com>]

This adds gpio and i2c support for the Nomadik evaluation kit. They
are needed to turn on the LCD backlight in order to later add LCD
support.

I have one doubt and some questions on gpio:

To use soft_i2c I need to define some macros in the config file.
Instead of writing hard numbers there I called the gpio functions, but
the config file is inluded from asm sources as well.  I don't think my
approach is beautiful at all (both #ifndef __ASSEMBLY__ and #include
"../board/"), but I didn't find a better solution.

I would like to add a gpio command, and I've found no generic gpio
stuff.  Only one board (cm-bf527) has a gpio commands, but quite a few
have similar commands to set leds or other bits.  Is time ripe for a
generic gpio driver with board-specific limits and operations? Would
that be interesting for u-boot-next?  Should I process with a board-specific
gpio command by now?

/alessandro


Alessandro Rubini (2):
  arm nomadik: add gpio support
  arm nomadik: add i2c

 board/st/nhk8815/Makefile  |    2 +-
 board/st/nhk8815/gpio.c    |   99 ++++++++++++++++++++++++++++++++++++++++++++
 board/st/nhk8815/gpio.h    |   42 ++++++++++++++++++
 board/st/nhk8815/nhk8815.c |   16 ++++++-
 include/configs/nhk8815.h  |   18 ++++++++-
 5 files changed, 173 insertions(+), 4 deletions(-)
 create mode 100644 board/st/nhk8815/gpio.c
 create mode 100644 board/st/nhk8815/gpio.h