On February 14, 2024 thus sayeth Andrew Davis:
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
Thanks for this! This will make adding SIP support much easier.
~Bryan
arch/arm/mach-k3/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-k3/Kconfig b/arch/arm/mach-k3/Kconfig index 55bb874d9aa..33f20f61f83 100644 --- a/arch/arm/mach-k3/Kconfig +++ b/arch/arm/mach-k3/Kconfig @@ -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
-- 2.39.2