[PATCH] ARM: dts: stm32: Define FMC2 base address

[Marek Vasut]

On 4/1/20 3:45 PM, Patrick DELAUNAY wrote:
> Hi Marek,

Hi,

>> From: Marek Vasut <marex at denx.de>
>> Sent: jeudi 26 mars 2020 16:57
>>
>> Define FMC2 base address, for use in board files, until there is an actual FMC2
>> bus driver.
>>
>> Signed-off-by: Marek Vasut <marex at denx.de>
>> Cc: Patrick Delaunay <patrick.delaunay at st.com>
>> Cc: Patrice Chotard <patrice.chotard at st.com>
>> ---
>>  arch/arm/mach-stm32mp/include/mach/stm32.h | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm/mach-stm32mp/include/mach/stm32.h b/arch/arm/mach-
>> stm32mp/include/mach/stm32.h
>> index f0636005e5..62d95d7f88 100644
>> --- a/arch/arm/mach-stm32mp/include/mach/stm32.h
>> +++ b/arch/arm/mach-stm32mp/include/mach/stm32.h
>> @@ -13,6 +13,7 @@
>>  #define STM32_RCC_BASE			0x50000000
>>  #define STM32_PWR_BASE			0x50001000
>>  #define STM32_DBGMCU_BASE		0x50081000
>> +#define STM32_FMC2_BASE			0x58002000
> 
> For me, the address should be defined in this file only for the few addresses used
> before device tree avaibility: I want to avoid to have all the device defined here.
> 
> But normally it is not the case for FMC2, even if I understand the current need, without FMC2 bus driver....
> I will take this patch only it is not possible to get FMC2 address from device tree.

I can parse this information from the DT, but what would be the benefit?
Slower boot due to the need to traverse DT and more complex code?