On 21/04/2018 17:11, Mans Rullgard wrote: > The code attempts to preserve the value of LR by storing it in R12/IP > across the lowevel_init() call. However, this register is not saved > by the callee. Use a register that guaranteed to be preserved instead. > > Signed-off-by: Mans Rullgard <[email protected]> > --- > arch/arm/cpu/arm926ejs/start.S | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S > index 959d1ed86d8a..a6f0bdb70345 100644 > --- a/arch/arm/cpu/arm926ejs/start.S > +++ b/arch/arm/cpu/arm926ejs/start.S > @@ -105,9 +105,9 @@ flush_dcache: > /* > * Go setup Memory and board specific bits prior to relocation. > */ > - mov ip, lr /* perserve link reg across call */ > + mov r4, lr /* perserve link reg across call */ > bl lowlevel_init /* go setup pll,mux,memory */ > - mov lr, ip /* restore link */ > + mov lr, r4 /* restore link */ > #endif > mov pc, lr /* back to my caller */ > #endif /* CONFIG_SKIP_LOWLEVEL_INIT */ >
Applied to u-boot-imx, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: [email protected] ===================================================================== _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
