[U-Boot] [RFC PATCH 0/1] GPIO support for Microblaze

[Michal Simek <michal.simek@xilinx.com>]

I want to also write gpio support for Zynq
and this driver should be also used for arm zynq.

Currently we have support just for only gpio controller
but not for various of them.
That's why I would like to get some input from you
if possible to add dynamic gpio allocation which
could be also helpful for OF support.

Output from my gpio status on Microblaze is below.

Thanks,
Michal

U-Boot> gpio status

gpio_info: reset/40000000 (0-0)
GPIO_0:	reset_pin is an INPUT value = 0

gpio_info: led/40040000 (1-5)
GPIO_1:	UNKNOWN is an INPUT value = 0
GPIO_2:	UNKNOWN is an OUTPUT value = 1
GPIO_3:	UNKNOWN is an INPUT value = 0
GPIO_4:	UNKNOWN is an INPUT value = 0
GPIO_5:	UNKNOWN is an OUTPUT value = 0


Michal Simek (1):
  gpio: Add support for microblaze xilinx GPIO

 arch/microblaze/include/asm/gpio.h                 |  50 +---
 .../xilinx/microblaze-generic/microblaze-generic.c |  17 +-
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/xilinx_gpio.c                         | 323 +++++++++++++++++++++
 include/configs/microblaze-generic.h               |   3 +-
 5 files changed, 353 insertions(+), 41 deletions(-)
 create mode 100644 drivers/gpio/xilinx_gpio.c

--
1.8.2.1

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