From eb50439b92b6298bf209a982f295ba9c0f7cb30b Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 20 Jan 2012 12:01:12 +0100
Subject: ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP

It turns out that the logical CPU mapping is useful even when !CONFIG_SMP
for manipulation of devices like interrupt and power controllers when
running a UP kernel on a CPU other than 0. This can happen when kexecing
a UP image from an SMP kernel.

In the future, multi-cluster systems running AMP configurations will
require something similar for mapping cluster IDs, so it makes sense to
decouple this logic in preparation for this support.

Acked-by: Yang Bai <hamo.by@gmail.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reported-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-imx/src.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'arch/arm/mach-imx')

diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 29bd1243781e..e15f1555c59b 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/smp.h>
+#include <asm/smp_plat.h>
 
 #define SRC_SCR				0x000
 #define SRC_GPR1			0x020
@@ -24,10 +25,6 @@
 
 static void __iomem *src_base;
 
-#ifndef CONFIG_SMP
-#define cpu_logical_map(cpu)		0
-#endif
-
 void imx_enable_cpu(int cpu, bool enable)
 {
 	u32 mask, val;
-- 
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