On Wed, 9 Feb 2022 14:05:57 +0100 Michael Walle <[email protected]> wrote:
Hi, > >> The problem I have is that I boot a custom SOC into u-boot and when u-boot > >> tries > >> to boot linux I get an error exception when u-boot calls > >> armv8_switch_to_el2 to enter linux. > > > > So that means that U-Boot runs in EL3, is that the first and only firmware > > that you run? I think the EL3 part of U-Boot is not widely used and tested > > beyond the very few platforms that use it. > > FWIW, the u-boot on the kontron_sl28 (which is a A72 core) is running > in EL3. But it's a layerscape so it might be worth looking in > arch/arm/cpu/armv8/fsl-layerscale/ if there is anything special. Thanks Michael, that's what I meant: the generic EL3 code in arch/arm/cpu/armv8 might depend on more platform specific code to make it work. Cheers, Andre
