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Commit 7d170b1b authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Move out cayman-specific panic handler code to its own file. 



This moves out the cayman-specific panic handler code to a better
location, and leaves the generic implementation a simple stub that is
still used under emulation.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent ef9f8999

arch/sh/boards/mach-cayman/Makefile

+1 −1
Original line number Diff line number Diff line 
#

# Makefile for the Hitachi Cayman specific parts of the kernel

#

obj-y := setup.o irq.o
 
obj-y := setup.o irq.o panic.o

arch/sh/boards/mach-cayman/panic.c

0 → 100644
+49 −0
Original line number Diff line number Diff line 
/*

 * 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 <linux/io.h>

#include <cpu/registers.h>



/* THIS IS A PHYSICAL ADDRESS */

#define HDSP2534_ADDR (0x04002100)



static void poor_mans_delay(void)

{

	int i;



	for (i = 0; i < 2500000; i++)

		cpu_relax();

}



static void show_value(unsigned long x)

{

	int i;

	unsigned nibble;

	for (i = 0; i < 8; i++) {

		nibble = ((x >> (i * 4)) & 0xf);



		__raw_writeb(nibble + ((nibble > 9) ? 55 : 48),

			  HDSP2534_ADDR + 0xe0 + ((7 - i) << 2));

	}

}



void

panic_handler(unsigned long panicPC, unsigned long panicSSR,

	      unsigned long panicEXPEVT)

{

	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();

	}

}

arch/sh/lib64/panic.c

+0 −43
Original line number Diff line number Diff line
@@ -6,53 +6,10 @@ 
 * for more details.

 */



#include <linux/kernel.h>

#include <asm/io.h>

#include <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 (;;) ;



}