[PATCH 09/10] config: add falcon boot config fragment for am62x

[Tom Rini]

On Fri, Mar 07, 2025 at 01:25:37PM +0530, Anshul Dalal wrote:
> This fragment enables falcon boot for the am62x, 62a and 62p.
> 
> To have enough stack and heap space for loading kernel image as FIT, the
> memory map was modified as shown below, the PRELOADED_BL33_BASE in ATF
> has to also be updated to 0x80200000 since the kernel requires to be
> loaded at 2MiB aligned address.
> 
> Memory Map (changed addresses marked with *):
> 
> 0x80000000 +-------------------------------+ Start of DDR
>   512KiB   |   ATF reserved memory space   | CONFIG_K3_ATF_LOAD_ADDR
> 0x80080000 +-------------------------------+
>   1.5MiB   |            Unused             |
> 0x80200000 +-------------------------------+ PRELOADED_BL33_BASE* in ATF
>            |                               | CONFIG_SYS_LOAD_ADDR* (load
>    30MiB   |   Kernel + initramfs Image    | address for kernel)
>            |                               |
> 0x82000000 +-------------------------------+ K3_HW_CONFIG_BASE in ATF
>            |                               | CONFIG_SPL_PAYLOAD_ARGS_ADDR*
>     1MiB   |          Kernel DTB           |
>            |                               |
> 0x82100000 +-------------------------------+ CONFIG_SPL_LOAD_FIT_ADDRESS*
>            |                               |
>    55MiB   |Initial Download Region for FIT|
>            |                               |
> 0x85800000 +-------------------------------+
>            |                               |
>            |  R5 U-Boot SPL Stack + Heap   |
>    56MiB   |       (size defined by        |
>            | SPL_STACK_R_MALLOC_SIMPLE_LEN)|
>            |                               |
> 0x89000000 +-------------------------------+ CONFIG_SPL_STACK_R_ADDR*
>   344MiB   |       Device Manager (DM)     |
> 0x9e800000 +-------------------------------+ BL32_BASE in ATF
>    24MiB   |             OPTEE             |
> 0xa0000000 +-------------------------------+ End of DDR (512MiB)

This information is good and belongs in a relevant rst file, not just
commit message.

-- 
Tom
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