register access

[Chris Johns]

On 13/11/19 4:10 pm, mojtaba nadi wrote:
> hello
> I have written a GPIO driver for xilinx-zedboard attached below. but when I try
> to write in register of GPIO that gave me SDK it doesn't work.
> Does RTEMS use the same register address as SDK? 
> Is there any memory mapping in RTEMS? 
> Or is there any extra thing that I have to do to access the register?

Is the register address mapped to an AXI port for logic in the PL?

If it is this may help ...

https://lists.rtems.org/pipermail/devel/2019-November/056015.html

Note, the table entry ...

  }, {
    .begin = 0x40000000U,
    .end   = 0xc0000000U,
    .flags = ARMV7_MMU_DEVICE
  }, {

... maps to your LED address base.

Chris