Re: hw_rpi acccess to MMIO

[Christian H. <chr...@ge...>]

Hello,

On Tue, Jun 23, 2015 at 08:29:37AM +0000, Duss Pirmin wrote:
> /* I/O mux registers */
> IOMUXC_BASE = 0x7e200000,
> IOMUXC_SIZE = 0x00610000,

reading your MMIO-range definitions I was reminded of a section in the
BCM2835 manual:

  Physical addresses range from 0x20000000 to 0x20FFFFFF for
  peripherals. The bus addresses for peripherals are set up to map
  onto the peripheral bus address range starting at 0x7E000000. Thus a
  peripheral advertised here at bus address 0x7Ennnnnn is available at
  physical address 0x20nnnnnn.

Maybe you have to transpose the MMIO range first?

Regards
-- 
Christian Helmuth
Genode Labs

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