mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
|
|
* 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);
|
|
}
|
|
}
|