On Fri Mar 7, 2025 at 9:28 PM IST, Tom Rini wrote: > 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.
I wanted to get some feedback first before updating the documentation in case there were any changes to the boot flow. Once we have finalized that, I will update the documentation in an upcoming revision of this patch set. Anshul
