3 files changed, 19 insertions, 5 deletions
diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c
index 672081405a..907a4f8c5a 100644
--- a/arch/arm/mach-shmobile/pm-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c
@@ -46,15 +46,16 @@ void __init rcar_gen2_pm_init(void)
 {
 	void __iomem *p;
 	u32 bar;
-	static int once;
 	struct device_node *np;
 	bool has_a7 = false;
 	bool has_a15 = false;
 	struct resource res;
 	int error;
 
-	if (once++)
+	if (!request_mem_region(0, SZ_256K, "Boot Area")) {
+		pr_err("Failed to request boot area\n");
 		return;
+	}
 
 	for_each_of_cpu_node(np) {
 		if (of_device_is_compatible(np, "arm,cortex-a15"))
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index 1bc609986c..474c325323 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -38,7 +38,14 @@ static int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
 
 static void __init r8a7779_smp_prepare_cpus(unsigned int max_cpus)
 {
-	void __iomem *base = ioremap(HPBREG_BASE, 0x1000);
+	void __iomem *base;
+
+	if (!request_mem_region(0, SZ_4K, "Boot Area")) {
+		pr_err("Failed to request boot area\n");
+		return;
+	}
+
+	base = ioremap(HPBREG_BASE, 0x1000);
 
 	/* Map the reset vector (in headsmp-scu.S, headsmp.S) */
 	writel(__pa(shmobile_boot_vector), base + AVECR);
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 453d488650..9196b37ea2 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -44,10 +44,16 @@ static int sh73a0_boot_secondary(unsigned int cpu, struct task_struct *idle)
 
 static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus)
 {
-	void __iomem *ap = ioremap(AP_BASE, PAGE_SIZE);
-	void __iomem *sysc = ioremap(SYSC_BASE, PAGE_SIZE);
+	void __iomem *ap, *sysc;
+
+	if (!request_mem_region(0, SZ_4K, "Boot Area")) {
+		pr_err("Failed to request boot area\n");
+		return;
+	}
 
 	/* Map the reset vector (in headsmp.S) */
+	ap = ioremap(AP_BASE, PAGE_SIZE);
+	sysc = ioremap(SYSC_BASE, PAGE_SIZE);
 	writel(0, ap + APARMBAREA);      /* 4k */
 	writel(__pa(shmobile_boot_vector), sysc + SBAR);
 	iounmap(sysc);