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);
+        }
+}