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

Tom Rini trini at konsulko.com
Fri Aug 24 14:11:00 UTC 2018


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
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.

-- 
Tom
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