1 files changed, 69 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/include/mach/system.h b/arch/arm/mach-footbridge/include/mach/system.h
new file mode 100644
index 000000000000..01c9f407f498
--- /dev/null
+++ b/arch/arm/mach-footbridge/include/mach/system.h
@@ -0,0 +1,69 @@
+/*
+ *  arch/arm/mach-footbridge/include/mach/system.h
+ *
+ *  Copyright (C) 1996-1999 Russell King.
+ *
+ * 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 <asm/hardware/dec21285.h>
+#include <asm/io.h>
+#include <mach/hardware.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	if (mode == 's') {
+		/*
+		 * Jump into the ROM
+		 */
+		cpu_reset(0x41000000);
+	} else {
+		if (machine_is_netwinder()) {
+			/* open up the SuperIO chip
+			 */
+			outb(0x87, 0x370);
+			outb(0x87, 0x370);
+
+			/* aux function group 1 (logical device 7)
+			 */
+			outb(0x07, 0x370);
+			outb(0x07, 0x371);
+
+			/* set GP16 for WD-TIMER output
+			 */
+			outb(0xe6, 0x370);
+			outb(0x00, 0x371);
+
+			/* set a RED LED and toggle WD_TIMER for rebooting
+			 */
+			outb(0xc4, 0x338);
+		} else {
+			/* 
+			 * Force the watchdog to do a CPU reset.
+			 *
+			 * After making sure that the watchdog is disabled
+			 * (so we can change the timer registers) we first
+			 * enable the timer to autoreload itself.  Next, the
+			 * timer interval is set really short and any
+			 * current interrupt request is cleared (so we can
+			 * see an edge transition).  Finally, TIMER4 is
+			 * enabled as the watchdog.
+			 */
+			*CSR_SA110_CNTL &= ~(1 << 13);
+			*CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE |
+					   TIMER_CNTL_AUTORELOAD |
+					   TIMER_CNTL_DIV16;
+			*CSR_TIMER4_LOAD = 0x2;
+			*CSR_TIMER4_CLR  = 0;
+			*CSR_SA110_CNTL |= (1 << 13);
+		}
+	}
+}