Merge tag 'for_3.17-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux...

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-shmobile / pm-r8a7791.c

diff --git a/arch/arm/mach-shmobile/pm-r8a7791.c b/arch/arm/mach-shmobile/pm-r8a7791.c
index b7e6513fb38a9710a0334838635a90b64aa91875..25f107bb36570d656efc18b45d39cc6aaa65e380 100644 (file)
--- 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 +45,29 @@ 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();
+       shmobile_smp_apmu_suspend_init();
 }