2015-05-16 9:58 GMT+02:00 Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx>: > secondary_startup_arm is used as ARM mode secondary start up function > when ther kernel is compiled in THUMB mode, however the label itself > is still in .thumb mode. readelf shows: > > 160979: c020a581 120 FUNC GLOBAL DEFAULT 2 secondary_startup_arm > > Make sure the label is in ARM mode as well. > > Signed-off-by: Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx> > --- > arch/arm/kernel/head.S | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S > index 3637973..58ee8a2 100644 > --- a/arch/arm/kernel/head.S > +++ b/arch/arm/kernel/head.S > @@ -346,8 +346,8 @@ __turn_mmu_on_loc: > > #if defined(CONFIG_SMP) > .text > -ENTRY(secondary_startup_arm) > .arm > +ENTRY(secondary_startup_arm) > THUMB( adr r9, BSYM(1f) ) @ Kernel is entered in ARM. > THUMB( bx r9 ) @ If this is a Thumb-2 kernel, > THUMB( .thumb ) @ switch to Thumb now. This fixes and issue we had with SMP on mt6589. Tested-by: Matthias Brugger <matthias.bgg@xxxxxxxxx> -- motzblog.wordpress.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
