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Commit 10593b2e authored by Victor Kamensky's avatar Victor Kamensky Committed by Russell King
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ARM: 7881/1: __fixup_smp read of SCU config should do byteswap in BE case 



Commit "bc41b872 ARM: 7846/1:
Update SMP_ON_UP code to detect A9MPCore with 1 CPU devices"
added read of SCU config register into __fixup_smp function.
Such read should be followed by byteswap, if kernel runs in
BE mode.

Signed-off-by: default avatarVictor Kamensky <victor.kamensky@linaro.org>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 83651bb9

arch/arm/kernel/head.S

+1 −0
Original line number Diff line number Diff line
@@ -508,6 +508,7 @@ __fixup_smp: 
	teq	r0, #0x0		@ '0' on actual UP A9 hardware

	beq	__fixup_smp_on_up	@ So its an A9 UP

	ldr	r0, [r0, #4]		@ read SCU Config

ARM_BE8(rev	r0, r0)			@ byteswap if big endian

	and	r0, r0, #0x3		@ number of CPUs

	teq	r0, #0x0		@ is 1?

	movne	pc, lr