Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 58 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2410/include/mach/system.h b/arch/arm/mach-s3c2410/include/mach/system.h
new file mode 100644
index 00000000000..e9f676bc011
--- /dev/null
+++ b/arch/arm/mach-s3c2410/include/mach/system.h
@@ -0,0 +1,58 @@
+/* arch/arm/mach-s3c2410/include/mach/system.h
+ *
+ * Copyright (c) 2003 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - System function defines and includes
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <mach/hardware.h>
+#include <asm/io.h>
+
+#include <mach/map.h>
+#include <mach/idle.h>
+#include <mach/reset.h>
+
+#include <mach/regs-clock.h>
+
+void (*s3c24xx_idle)(void);
+void (*s3c24xx_reset_hook)(void);
+
+void s3c24xx_default_idle(void)
+{
+	unsigned long tmp;
+	int i;
+
+	/* idle the system by using the idle mode which will wait for an
+	 * interrupt to happen before restarting the system.
+	 */
+
+	/* Warning: going into idle state upsets jtag scanning */
+
+	__raw_writel(__raw_readl(S3C2410_CLKCON) | S3C2410_CLKCON_IDLE,
+		     S3C2410_CLKCON);
+
+	/* the samsung port seems to do a loop and then unset idle.. */
+	for (i = 0; i < 50; i++) {
+		tmp += __raw_readl(S3C2410_CLKCON); /* ensure loop not optimised out */
+	}
+
+	/* this bit is not cleared on re-start... */
+
+	__raw_writel(__raw_readl(S3C2410_CLKCON) & ~S3C2410_CLKCON_IDLE,
+		     S3C2410_CLKCON);
+}
+
+static void arch_idle(void)
+{
+	if (s3c24xx_idle != NULL)
+		(s3c24xx_idle)();
+	else
+		s3c24xx_default_idle();
+}
+
+#include <mach/system-reset.h>