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8084e918bc
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>