35 lines
845 B
C
35 lines
845 B
C
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
/*
|
||
|
|
* Common PowerQUICC II code.
|
||
|
|
*
|
||
|
|
* Author: Scott Wood <scottwood@freescale.com>
|
||
|
|
* Copyright (c) 2007 Freescale Semiconductor
|
||
|
|
*
|
||
|
|
* Based on code by Vitaly Bordug <vbordug@ru.mvista.com>
|
||
|
|
* pq2_restart fix by Wade Farnsworth <wfarnsworth@mvista.com>
|
||
|
|
* Copyright (c) 2006 MontaVista Software, Inc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kprobes.h>
|
||
|
|
|
||
|
|
#include <asm/cpm2.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/pci-bridge.h>
|
||
|
|
|
||
|
|
#include <platforms/82xx/pq2.h>
|
||
|
|
|
||
|
|
#define RMR_CSRE 0x00000001
|
||
|
|
|
||
|
|
void __noreturn pq2_restart(char *cmd)
|
||
|
|
{
|
||
|
|
local_irq_disable();
|
||
|
|
setbits32(&cpm2_immr->im_clkrst.car_rmr, RMR_CSRE);
|
||
|
|
|
||
|
|
/* Clear the ME,EE,IR & DR bits in MSR to cause checkstop */
|
||
|
|
mtmsr(mfmsr() & ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR));
|
||
|
|
in_8(&cpm2_immr->im_clkrst.res[0]);
|
||
|
|
|
||
|
|
panic("Restart failed\n");
|
||
|
|
}
|
||
|
|
NOKPROBE_SYMBOL(pq2_restart)
|