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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 <catalin.marinas@arm.com>
hifive-unleashed-5.1
Catalin Marinas 2009-07-24 12:34:59 +01:00
parent 68b7f7153f
commit 05efde9d04
1 changed files with 4 additions and 1 deletions
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5
arch/arm/kernel/head-nommu.S
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@ -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