[PATCH 2/3] arm: caches: add DCACHE_DEFAULT_OPTION

[Marek Vasut]

On 4/8/20 9:07 PM, Patrick DELAUNAY wrote:
> Hi
> 
>> From: Marek Vasut <marex at denx.de>
>> Sent: mercredi 8 avril 2020 20:18
>>
>> On 4/8/20 8:16 PM, Patrick DELAUNAY wrote:
>>> Dear Marek,
>>>
>>>> From: Marek Vasut <marex at denx.de>
>>>> Sent: vendredi 3 avril 2020 23:29
>>>>
>>>> On 4/3/20 10:28 AM, Patrick Delaunay wrote:
>>>>> Add the new flags DCACHE_DEFAULT_OPTION to define the default option
>>>>> to use according the compilation flags
>>>>> CONFIG_SYS_ARM_CACHE_WRITETHROUGH or
>>>> CONFIG_SYS_ARM_CACHE_WRITEALLOC.
>>>>
>>>> Can't you unify these macros into a single Kconfig "select" statement
>>>> instead , and then just select the matching cache configuration in Kconfig ?
>>>
>>> Yes I will try, with 2 steps
>>> - migrate existing CONFIG_SYS_ARM_CACHE_.... in Kconfig
>>> - add new option CONFIG_SYS_ARM_CACHE_OPTION
>>>
>>>> Or better yet, can't you extract this info from DT ?
>>>
>>> I don't think.... it is called before device tree parsing
>>>
>>
>> The FDT access should be set up as one of the first things during U-Boot's
>> boot_init_f , so it should be possible.
> 
> But I try to activate de dcache to speed-up the device tree parsing.... 
> So the MMU function is now called really early,  in arch init.
> 
> Or I miss something.

Ah, oops, please forget what I said.