mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2003 Richard Curnow, SuperH UK Limited
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <asm/io.h>
|
|
#include <asm/cpu/registers.h>
|
|
|
|
/* THIS IS A PHYSICAL ADDRESS */
|
|
#define HDSP2534_ADDR (0x04002100)
|
|
|
|
#ifdef CONFIG_SH_CAYMAN
|
|
|
|
static void poor_mans_delay(void)
|
|
{
|
|
int i;
|
|
for (i = 0; i < 2500000; i++) {
|
|
} /* poor man's delay */
|
|
}
|
|
|
|
static void show_value(unsigned long x)
|
|
{
|
|
int i;
|
|
unsigned nibble;
|
|
for (i = 0; i < 8; i++) {
|
|
nibble = ((x >> (i * 4)) & 0xf);
|
|
|
|
ctrl_outb(nibble + ((nibble > 9) ? 55 : 48),
|
|
HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
void
|
|
panic_handler(unsigned long panicPC, unsigned long panicSSR,
|
|
unsigned long panicEXPEVT)
|
|
{
|
|
#ifdef CONFIG_SH_CAYMAN
|
|
while (1) {
|
|
/* This piece of code displays the PC on the LED display */
|
|
show_value(panicPC);
|
|
poor_mans_delay();
|
|
show_value(panicSSR);
|
|
poor_mans_delay();
|
|
show_value(panicEXPEVT);
|
|
poor_mans_delay();
|
|
}
|
|
#endif
|
|
|
|
/* Never return from the panic handler */
|
|
for (;;) ;
|
|
|
|
}
|