7 Dec
2020
7 Dec
'20
11:20 p.m.
On Wed, Nov 18, 2020 at 05:45:59PM +0100, Michael Walle wrote:
The BL31 expects the GIC to be uninitialized. Thus, if we are loading the BL31 by the SPL we must not initialize it. If u-boot is loaded by the SPL directly, it will initialize the GIC again (in the same lowlevel_init()).
This was tested on a custom board with SPL loading the BL31 and jumping to u-boot as BL33 as well as loading u-boot directly by the SPL. In case the ATF BL1/BL2 is used, this patch won't change anything, because no SPL is used at all.
Signed-off-by: Michael Walle michael@walle.cc
Applied to u-boot/next, thanks!
--
Tom