[PATCH] eng: Add register block specification types

[Sebastian Huber]

On 13/09/2021 10:43, Chris Johns wrote:
> On 13/9/21 4:38 pm, Sebastian Huber wrote:
>> This approach is not limited to memory mapped register blocks.
> I think it is.
> 
> I would like to understand how bus types other than "memory" are specified for a
> generic device driver that needs to handle bus variability. I am concerned this
> is bespoke to a limited range of devices and use cases. If this is the case lets
> understand that.
> 
> I would be interested to see how the ns16550 driver would be specified and then
> generated to match how it is currently used:
> 
> https://git.rtems.org/rtems/tree/bsps/shared/dev/serial/ns16550.c
> 
> Note, it is selected because it maps to IO instructions and memory mapped IO bus
> architectures.

The register block specification doesn't aim to solve the above problem. 
The goal is to specify the register blocks of a particular chip, for 
example the GR740. It is disconnected from a bus API or a device driver 
framework.

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