[U-Boot] [PATCH 2/8] arm: K3: Add support for AM654 SoC definition

[Lokesh Vutla]

On Friday 24 August 2018 07:41 PM, Tom Rini wrote:
> On Tue, Aug 21, 2018 at 08:00:49PM +0530, Lokesh Vutla wrote:
> 
>> The AM654 device is designed for industrial automation and PLC
>> controller class platforms among other applications. Introduce
>> base support for AM654 SoC.
> [snip]
>> +config NON_SECURE_MSRAM_SIZE
>> +	hex "Size of the MCU OC-MSRAM"
>> +	default 0x80000
>> +	help
>> +	  Describes the total size of the MCU MSRAM. This doesn't
>> +	  specify the total size of SPL as ROM can use some part
>> +	  of this RAM. Once ROM gives control to SPL then this
>> +	  complete size can be usable.
>> +
>> +config MAX_DOWNLODABLE_IMAGE_SIZE
>> +	hex "Maximum size of the image"
>> +	default 0x58000
>> +	help
>> +	  Describes the maximum size of the image that ROM can download
>> +	  from any boot media.
>> +
>> +config MCU_SCRATCHPAD_BASE
>> +	hex "Base address of Scratchpad RAM"
>> +	default 0x40280000 if SOC_K3_AM6
>> +	help
>> +	  Describes the base address of MCU Scratchpad RAM.
>> +
>> +config MCU_SCRATCHPAD_SIZE
>> +	hex "Size of Scratchpad RAM"
>> +	default 0x200 if SOC_K3_AM6
>> +	help
>> +	  Describes the size of MCU Scratchpad RAM.
> 
> These are very generic names.  And are these really things that can be
> configured and changed by the user?  MAX_DOWNLODABLE_IMAGE_SIZE is

You are right. These are not configurable by user, but changes from SoC
to SoC within K3 family. Will fix it in v2 by dropping the prompt string.

Thanks and regards,
Lokesh

> something we usually set in CONFIG_SPL_MAX_SIZE but I imagine the
> overall architecture means that perhaps that's not the exact variable
> we're talking about here.
>