[U-Boot] [PATCH 3/6 v3] nios2: add gpio support to nios2-generic board

[Scott McNutt]

Thomas Chou wrote:
> This patch adds gpio support of Altera PIO component to the
> nios2-generic board. Though it drives only gpio_led at the
> moment, it supports bidirectional port to control bit-banging
> I2C, NAND flash busy status or button switches, etc.
> 
> Signed-off-by: Thomas Chou <thomas at wytron.com.tw>
> ---
> v3: split patches for gpio and spi, based gpio on altera pio core.
> v2: remove mmc_spi_init()
> 
>  board/altera/nios2-generic/Makefile |    1 +
>  board/altera/nios2-generic/gpio.c   |   55 +++++++++++++++++++++++++++++++++++
>  include/configs/nios2-generic.h     |    6 ++--
>  3 files changed, 59 insertions(+), 3 deletions(-)
>  create mode 100644 board/altera/nios2-generic/gpio.c
> 
> diff --git a/board/altera/nios2-generic/Makefile b/board/altera/nios2-generic/Makefile
> index 6780872..d1fca70 100644
> --- a/board/altera/nios2-generic/Makefile
> +++ b/board/altera/nios2-generic/Makefile
> @@ -32,6 +32,7 @@ LIB	= $(obj)lib$(BOARD).a
>  COBJS-y	:= $(BOARD).o
>  COBJS-$(CONFIG_CMD_IDE) += ../common/cfide.o
>  COBJS-$(CONFIG_EPLED) += ../common/epled.o
> +COBJS-$(CONFIG_GPIO) += gpio.o
>  COBJS-$(CONFIG_SEVENSEG) += ../common/sevenseg.o

This will build a u-boot image that will not work with any
of the standard configurations ... correct? ... since the
GPIO component is custom (not supplied by the vendor)?

--Scott