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

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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: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-05-08 17:41:59 +09:00
parent ef9f89996e
commit 7d170b1bc5
3 changed files with 50 additions and 44 deletions
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43
arch/sh/lib64/panic.c
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@@ -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 (;;) ;
}