Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/*

 * 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/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 (;;) ;

}