[PATCH 1/4] ARM: imx: imx8m: Introduce and use UART_BASE_ADDR(n)

[Marek Vasut]

On 4/25/22 15:05, Tom Rini wrote:
> On Mon, Apr 25, 2022 at 03:02:29PM +0200, Marek Vasut wrote:
>> On 4/25/22 14:46, Fabio Estevam wrote:
>>> Hi Marek,
>>>
>>> On 24/04/2022 18:44, Marek Vasut wrote:
>>>> Introduce helper macro UART_BASE_ADDR(n), which returns Nth UART base
>>>> address. Convert all board configurations to this new macro. This is the
>>>> first step toward switching CONFIG_MXC_UART_BASE to Kconfig. This is a
>>>> clean up, no functional change.
>>>
>>> As DM_SERIAL is mandatory now, we should get rid of CONFIG_MXC_UART_BASE.
>>>
>>> I would prefer a patch that removes CONFIG_MXC_UART_BASE instead.
>>
>> DM is mandatory in SPL too ? I doubt it.
> 
> It is strongly encouraged, but not mandatory.  It is not used on I guess
> imx27/31/5, but is for all of the imx8 families.  So
> CONFIG_MXC_UART_BASE still needs to be moved out of board.h files (and
> perhaps out of CONFIG namespace since it's not configurable, it's part
> of the SoC) and perhaps the path for imx8* is to drop the references
> since it's all DM?

MX8M SPL is not DM serial either. But I think I will just postpone this 
cleanup until I have time to finish it.