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arm: mach-k3: Move DRAM address of ATF for AM62/AM62a

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The current address of TF-A in DRAM is just below the 512MB address line.
This means if the DRAM in a system is 512MB then TF-A is right at the
end of memory which is often reused, for instance U-Boot relocates itself
here. If a system has less than 512MB then that system wouldn't work at
all as TF-A would fail to load.

To avoid the issues above, move TF-A to the start of DRAM, which doesn't
change from system to system.

As TF-A is position independent, this has no dependency on TF-A. We
also fixup DT as needed when TF-A address is moved, so this change also
has no dependency on Linux and is fully forward/backward compatible.

Signed-off-by: Andrew Davis <afd@ti.com>
Acked-by: Bryan Brattlof <bb@ti.com>
This commit is contained in:
Andrew Davis
2024-02-14 10:30:09 -06:00
committed by Tom Rini
parent 69a5085219
commit cc0f759ddc
1 changed files with 1 additions and 1 deletions
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arch/arm/mach-k3/Kconfig
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@@ -123,7 +123,7 @@ config SYS_K3_SPL_ATF
config K3_ATF_LOAD_ADDR
hex "Load address of ATF image"
default 0x9e780000 if (SOC_K3_AM625 || SOC_K3_AM62A7)
default 0x80000000 if (SOC_K3_AM625 || SOC_K3_AM62A7)
default 0x70000000
help
The load address for the ATF image. This value is used to build the