On Wed, Nov 25, 2015 at 05:56:33PM +0100, Albert ARIBAUD wrote: > As of gcc 5.2.1 for Thumb-1, it is not possible any > more to assign gd from C code, as gd is mapped to r9, > and r9 may now be saved in the prolog sequence, and > restored in the epilog sequence, of any C functions. > > Therefore arch_setup_gd(), which is supposed to set > r9, may actually have no effect, causing U-Boot to > use a bad address to access GD. > > Fix this by never calling arch_setup_gd() for ARM, > and instead setting r9 in arch/arm/lib/crt0.S, to > the value returned by board_init_f_alloc_reserve(). > > Signed-off-by: Albert ARIBAUD <albert.u.b...@aribaud.net> > Reviewed-by: Simon Glass <s...@chromium.org>
Applied to u-boot/master, thanks! -- Tom
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