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xilinx gpio in kernel 2.6

DISCUSSION Mirek23 1 participant 1 message Apr 30, 2007

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Mirek23

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Hi All,

I am trying to build the kernel 2.6 for my ml403 board. I use the
kernel 2.6 by Grant.
The ethernet (Temac) and serial drivers work fine. It is however no support for xilinx gpio in the kernel tree.

To satisfy that I have generated the xilinx_gpio driver by means of the EDK 8.2 .

I have tried to place the xilinx_gpio to the kernel 2.6 tree under drivers/char/xilinx_gpio.

I have done the suitable configuration on the Makefile and Kconfig level. When I build the kernel, the crosscompiler complaines about the xgpio_ioctl.h which comes
from the adapter.c file.

It seems to be that xgpio_ioctl.h conatins the missing macros:
XGPIO_IN
XGPIO_OUT
XGPIO_TRISTATE
XGPIO_OPEN_DRAIN
.
.
.

Did sombody of you face the same problem?
The second thing is that I did not find any documentation how to use GPIO on the user level to access things like LEDS and Swiches on my xilinx board. Do you have an idea how to do that (ie. which function calls to use).

Many thanks in advance for any hint.

Best Regards

Mirek

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