Commit Graph

2 Commits

Author SHA1 Message Date
Eero Nurkkala
2f753a48c7 arm64: s/ARCH_BOOT_EL3/ARCH_ARM64_EXCEPTION_LEVEL/g
Search and replace ARCH_BOOT_EL3 with more generic
ARCH_ARM64_EXCEPTION_LEVEL that holds the EL level
in an integer variable.

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
2024-05-21 09:02:35 +08:00
Eero Nurkkala
1d3ce6b527 arm64/imx9: provide EL3 bootloader support for iMX9
This provides a capable bootloader that may be run from OCRAM.
The OCRAM contains regions that are always zero, so the linker
file avoids those with best effort.

iMX9 infrastructure expects:
  - 0x20480000 (Start of OCRAM, AHAB)
  - 0x2049a000 (NuttX or SPL)
  - 0x204e0000 (ARM Trustzone, not used)

When started from SD-card, the offsets are:
  - 0x1f000 with AHAB
  - 0xa000  without AHAB

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
2024-05-21 09:02:35 +08:00