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/*
* 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()) {
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);
}
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