1 files changed, 54 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp2000/system.h b/include/asm-arm/arch-ixp2000/system.h
new file mode 100644
index 000000000000..4f489cc0dfa5
--- /dev/null
+++ b/include/asm-arm/arch-ixp2000/system.h
@@ -0,0 +1,54 @@
+/*
+ * linux/include/asm-arm/arch-ixp2000/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 <asm/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()) {
+		*IXDP2X01_CPLD_FLASH_REG = ((0 >> IXDP2X01_FLASH_WINDOW_BITS)
+						| IXDP2X01_CPLD_FLASH_INTERN);
+		*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 moves the flash bank register back to 0.
+	 */
+	if (machine_is_ixdp2801()) {
+		unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
+		reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
+		*IXDP2X01_CPLD_RESET_REG = reset_reg;
+		mb();
+		*IXDP2X01_CPLD_RESET_REG = 0x80000000;
+	}
+
+	/*
+	 * We do a reset all if we are PCI master. We could be a slave and we
+	 * don't want to do anything funky on the PCI bus.
+	 */
+	if (*IXP2000_STRAP_OPTIONS & CFG_PCI_BOOT_HOST) {
+		*(IXP2000_RESET0) |= (RSTALL);
+	}
+}