* 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
static inline void arch_reset(char mode)
{
- cli();
+ local_irq_disable();
- if (machine_is_ixdp2401() || machine_is_ixdp2801()) {
- *IXDP2X01_CPLD_FLASH_REG = ((0 >> IXDP2X01_FLASH_WINDOW_BITS) | IXDP2X01_CPLD_FLASH_INTERN);
- *IXDP2X01_CPLD_RESET_REG = 0xffffffff;
+ /*
+ * 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);
}
/*
- * 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.
+ * 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 (*IXP2000_STRAP_OPTIONS & CFG_PCI_BOOT_HOST) {
- *(IXP2000_RESET0) |= (RSTALL);
+ 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);
}