| Date | Sat, 17 Aug 2013 17:38:02 +0200 | From | Thomas Petazzoni <> | Subject | Re: [RFC v1 5/5] ARM: mvebu: add board init for Armada 1500 |
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Dear Sebastian Hesselbarth,
On Fri, 16 Aug 2013 21:41:38 +0200, Sebastian Hesselbarth wrote:
> I am not so sure about the .map_io but I didn't yet fully understand > the mapping requirement. Anyway, it is required for iomap and friends > to work and basically remaps physical register addressed onto the same > virtual addresses.
You should normally be able to completely avoid the ->map_io() hook. If you leave it set to NULL, it will automatically call debug_ll_io_init(), which will setup the virt->phys mapping needed by DEBUG_LL stuff. All the other mappings will be created dynamically with ioremap().
The static mapping covering all registers is really no longer needed.
Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
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