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authorIngo Molnar <mingo@kernel.org>2014-08-22 10:04:15 +0200
committerIngo Molnar <mingo@kernel.org>2014-08-22 10:04:15 +0200
commit80b304fd00e8b667775ff791121b61ecd7cd0c03 (patch)
treeb4f2ec59fe062c43343ee4c2f10a6bcd0e4dcd1b /arch/arm/mach-shmobile/pm-r8a7790.c
parentx86_32, entry: Clean up sysenter_badsys declaration (diff)
parentefi/arm64: Store Runtime Services revision (diff)
downloadlinux-80b304fd00e8b667775ff791121b61ecd7cd0c03.tar.xz
linux-80b304fd00e8b667775ff791121b61ecd7cd0c03.zip
Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming: * WARN_ON(!spin_is_locked()) always triggers on non-SMP machines. Swap it for the more canonical lockdep_assert_held() which always does the right thing - Guenter Roeck * Assign the correct value to efi.runtime_version on arm64 so that all the runtime services can be invoked - Semen Protsenko Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/mach-shmobile/pm-r8a7790.c')
-rw-r--r--arch/arm/mach-shmobile/pm-r8a7790.c45
1 files changed, 41 insertions, 4 deletions
diff --git a/arch/arm/mach-shmobile/pm-r8a7790.c b/arch/arm/mach-shmobile/pm-r8a7790.c
index fc82839e2c2a..80e8d95e54d3 100644
--- a/arch/arm/mach-shmobile/pm-r8a7790.c
+++ b/arch/arm/mach-shmobile/pm-r8a7790.c
@@ -11,9 +11,21 @@
*/
#include <linux/kernel.h>
+#include <linux/smp.h>
#include <asm/io.h>
-#include <mach/pm-rcar.h>
-#include <mach/r8a7790.h>
+#include "common.h"
+#include "pm-rcar.h"
+#include "r8a7790.h"
+
+/* RST */
+#define RST 0xe6160000
+#define CA15BAR 0x0020
+#define CA7BAR 0x0030
+#define CA15RESCNT 0x0040
+#define CA7RESCNT 0x0044
+
+/* On-chip RAM */
+#define MERAM 0xe8080000
/* SYSC */
#define SYSCIER 0x0c
@@ -38,8 +50,33 @@ static inline void r8a7790_sysc_init(void) {}
void __init r8a7790_pm_init(void)
{
+ void __iomem *p;
+ u32 bar;
static int once;
- if (!once++)
- r8a7790_sysc_init();
+ if (once++)
+ return;
+
+ /* MERAM for jump stub, because BAR requires 256KB aligned address */
+ p = ioremap_nocache(MERAM, shmobile_boot_size);
+ memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+ iounmap(p);
+
+ /* setup reset vectors */
+ p = ioremap_nocache(RST, 0x63);
+ bar = (MERAM >> 8) & 0xfffffc00;
+ writel_relaxed(bar, p + CA15BAR);
+ writel_relaxed(bar, p + CA7BAR);
+ writel_relaxed(bar | 0x10, p + CA15BAR);
+ writel_relaxed(bar | 0x10, p + CA7BAR);
+
+ /* de-assert reset for all CPUs */
+ writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
+ p + CA15RESCNT);
+ writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) | 0x5a5a0000,
+ p + CA7RESCNT);
+ iounmap(p);
+
+ r8a7790_sysc_init();
+ shmobile_smp_apmu_suspend_init();
}