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arm64: Do not set the SMP/nAMP processor bit

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If such bit exists on a given CPU, it must be set by the firmware or
boot-loader prior to starting the kernel (see
Documentation/arm64/booting.txt).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Catalin Marinas 2012-09-24 18:06:16 +01:00
parent 38074229de
commit 0d0109a440
1 changed files with 0 additions and 11 deletions
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11
arch/arm64/mm/proc.S
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@ -108,17 +108,6 @@ cpu_name:
* value of the SCTLR_EL1 register.
*/
ENTRY(__cpu_setup)
#ifdef CONFIG_SMP
/* TODO: only do this for certain CPUs */
/*
* Enable SMP/nAMP mode.
*/
mrs x0, actlr_el1
tbnz x0, #6, 1f // already enabled?
orr x0, x0, #1 << 6
msr actlr_el1, x0
1:
#endif
/*
* Preserve the link register across the function call.
*/