From: Catalin Marinas Date: Fri, 24 Jul 2009 11:34:59 +0000 (+0100) Subject: nommu: Do not override the CP15 control reg value returned from initfunc X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=05efde9d04ccc1d66a9d2225527c6ee638baa385;p=linux-beck.git nommu: Do not override the CP15 control reg value returned from initfunc The patch removes the "mrc" instruction in head-nommu.S overriding the r0 register containing the value to be written in the CP15 system control register. Signed-off-by: Catalin Marinas --- diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index b16393d2b71e..e5dfc2895e24 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -61,7 +61,10 @@ ENDPROC(stext) */ __after_proc_init: #ifdef CONFIG_CPU_CP15 - mrc p15, 0, r0, c1, c0, 0 @ read control reg + /* + * CP15 system control register value returned in r0 from + * the CPU init function. + */ #ifdef CONFIG_ALIGNMENT_TRAP orr r0, r0, #CR_A #else