2 * arch/arm/mach-ixp2000/include/mach/system.h
4 * Copyright (C) 2002 Intel Corp.
5 * Copyricht (C) 2003-2005 MontaVista Software, Inc.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <mach/hardware.h>
13 #include <asm/mach-types.h>
15 static inline void arch_idle(void)
20 static inline void arch_reset(char mode, const char *cmd)
23 * Reset flash banking register so that we are pointing at
26 if (machine_is_ixdp2401()) {
27 ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG,
28 ((0 >> IXDP2X01_FLASH_WINDOW_BITS)
29 | IXDP2X01_CPLD_FLASH_INTERN));
30 ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0xffffffff);
34 * On IXDP2801 we need to write this magic sequence to the CPLD
35 * to cause a complete reset of the CPU and all external devices
36 * and move the flash bank register back to 0.
38 if (machine_is_ixdp2801() || machine_is_ixdp28x5()) {
39 unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
41 reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
42 ixp2000_reg_write(IXDP2X01_CPLD_RESET_REG, reset_reg);
43 ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0x80000000);
46 ixp2000_reg_wrb(IXP2000_RESET0, RSTALL);