Merge branch 'master' into next

1 files changed, 49 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp2000/include/mach/system.h b/arch/arm/mach-ixp2000/include/mach/system.h
new file mode 100644
index 00000000000..2e9c68f95a2
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/system.h
@@ -0,0 +1,49 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/system.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyricht (C) 2003-2005 MontaVista Software, Inc.
+ *
+ * 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/mach-types.h>
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	local_irq_disable();
+
+	/*
+	 * Reset flash banking register so that we are pointing at
+	 * RedBoot bank.
+	 */
+	if (machine_is_ixdp2401()) {
+		ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG,
+					((0 >> IXDP2X01_FLASH_WINDOW_BITS)
+						| IXDP2X01_CPLD_FLASH_INTERN));
+		ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0xffffffff);
+	}
+
+	/*
+	 * On IXDP2801 we need to write this magic sequence to the CPLD
+	 * to cause a complete reset of the CPU and all external devices
+	 * and move the flash bank register back to 0.
+	 */
+	if (machine_is_ixdp2801() || machine_is_ixdp28x5()) {
+		unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
+
+		reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
+		ixp2000_reg_write(IXDP2X01_CPLD_RESET_REG, reset_reg);
+		ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0x80000000);
+	}
+
+	ixp2000_reg_wrb(IXP2000_RESET0, RSTALL);
+}