From: Magnus Damm <damm+renesas@opensource.se>
Date: Fri, 6 Jun 2014 07:21:11 +0000 (+0900)
Subject: ARM: shmobile: Move r8a7791 reset code to pm-r8a7791.c
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8e26118d44c4877fa52dc8117692f3cc9af3c769;p=linux-beck.git

ARM: shmobile: Move r8a7791 reset code to pm-r8a7791.c

Move r8a7791 specific reset vector setup code from the
SMP glue code to PM code. This makes the code one step
closer to allow PM operations such as Suspend-to-RAM
in the case when SMP is disabled in the kernel config.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
[horms+renesas@verge.net.au: updated for recent header file changes]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---

diff --git a/arch/arm/mach-shmobile/pm-r8a7791.c b/arch/arm/mach-shmobile/pm-r8a7791.c
index b7e6513fb38a..c44304c3c6df 100644
--- a/arch/arm/mach-shmobile/pm-r8a7791.c
+++ b/arch/arm/mach-shmobile/pm-r8a7791.c
@@ -11,12 +11,17 @@
  */
 
 #include <linux/kernel.h>
-
+#include <linux/smp.h>
 #include <asm/io.h>
-
+#include "common.h"
 #include "pm-rcar.h"
 #include "r8a7791.h"
 
+#define RST		0xe6160000
+#define CA15BAR		0x0020
+#define CA15RESCNT	0x0040
+#define RAM		0xe6300000
+
 /* SYSC */
 #define SYSCIER 0x0c
 #define SYSCIMR 0x10
@@ -40,10 +45,28 @@ static inline void r8a7791_sysc_init(void) {}
 
 void __init r8a7791_pm_init(void)
 {
+	void __iomem *p;
+	u32 bar;
 	static int once;
 
 	if (once++)
 		return;
 
+	/* RAM for jump stub, because BAR requires 256KB aligned address */
+	p = ioremap_nocache(RAM, shmobile_boot_size);
+	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+	iounmap(p);
+
+	/* setup reset vectors */
+	p = ioremap_nocache(RST, 0x63);
+	bar = (RAM >> 8) & 0xfffffc00;
+	writel_relaxed(bar, p + CA15BAR);
+	writel_relaxed(bar | 0x10, p + CA15BAR);
+
+	/* enable clocks to all CPUs */
+	writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
+		       p + CA15RESCNT);
+	iounmap(p);
+
 	r8a7791_sysc_init();
 }
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c
index 248255524127..df086aa79630 100644
--- a/arch/arm/mach-shmobile/smp-r8a7791.c
+++ b/arch/arm/mach-shmobile/smp-r8a7791.c
@@ -24,35 +24,11 @@
 #include "r8a7791.h"
 #include "rcar-gen2.h"
 
-#define RST		0xe6160000
-#define CA15BAR		0x0020
-#define CA15RESCNT	0x0040
-#define RAM		0xe6300000
-
 static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
 {
-	void __iomem *p;
-	u32 bar;
-
 	/* let APMU code install data related to shmobile_boot_vector */
 	shmobile_smp_apmu_prepare_cpus(max_cpus);
 
-	/* RAM for jump stub, because BAR requires 256KB aligned address */
-	p = ioremap_nocache(RAM, shmobile_boot_size);
-	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
-	iounmap(p);
-
-	/* setup reset vectors */
-	p = ioremap_nocache(RST, 0x63);
-	bar = (RAM >> 8) & 0xfffffc00;
-	writel_relaxed(bar, p + CA15BAR);
-	writel_relaxed(bar | 0x10, p + CA15BAR);
-
-	/* enable clocks to all CPUs */
-	writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
-		       p + CA15RESCNT);
-	iounmap(p);
-
 	r8a7791_pm_init();
 	shmobile_smp_apmu_suspend_init();
 }