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Add watchdog and bus error handling functions (these features live in 

IMC space, thus should be handled here rather than in ip2x.c)
This commit is contained in:
sekiya 2004-01-10 05:00:50 +00:00
parent 782d376ab0
commit 280b50a365
1 changed files with 27 additions and 2 deletions
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29
sys/arch/sgimips/dev/imc.c
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@ -1,4 +1,4 @@
/* $NetBSD: imc.c,v 1.10 2003/12/14 07:21:51 sekiya Exp $ */
/* $NetBSD: imc.c,v 1.11 2004/01/10 05:00:50 sekiya Exp $ */
/*
* Copyright (c) 2001 Rafal K. Boni
@ -28,7 +28,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: imc.c,v 1.10 2003/12/14 07:21:51 sekiya Exp $");
__KERNEL_RCSID(0, "$NetBSD: imc.c,v 1.11 2004/01/10 05:00:50 sekiya Exp $");
#include <sys/param.h>
#include <sys/device.h>
@ -57,6 +57,8 @@ static int imc_match(struct device *, struct cfdata *, void *);
static void imc_attach(struct device *, struct device *, void *);
static int imc_print(void *, const char *);
void imc_bus_reset(void);
void imc_bus_error(void);
void imc_watchdog_tickle(void);
CFATTACH_DECL(imc, sizeof(struct imc_softc),
imc_match, imc_attach, NULL, NULL);
@ -213,6 +215,12 @@ imc_attach(parent, self, aux)
iaa.iaa_name = "gio";
(void)config_found(self, (void*)&iaa, imc_print);
/* enable watchdog and clear it */
reg = bus_space_read_4(isc.iot, isc.ioh, IMC_CPUCTRL0);
reg |= IMC_CPUCTRL0_WDOG;
bus_space_write_4(isc.iot, isc.ioh, IMC_CPUCTRL0, reg);
imc_watchdog_tickle();
}
@ -235,3 +243,20 @@ imc_bus_reset(void)
bus_space_write_4(isc.iot, isc.ioh, IMC_CPU_ERRSTAT, 0);
bus_space_write_4(isc.iot, isc.ioh, IMC_GIO_ERRSTAT, 0);
}
void
imc_bus_error(void)
{
printf("bus error: cpu_stat %08x addr %08x, gio_stat %08x addr %08x\n",
bus_space_read_4(isc.iot, isc.ioh, IMC_CPU_ERRSTAT),
bus_space_read_4(isc.iot, isc.ioh, IMC_CPU_ERRADDR),
bus_space_read_4(isc.iot, isc.ioh, IMC_GIO_ERRSTAT),
bus_space_read_4(isc.iot, isc.ioh, IMC_GIO_ERRADDR) );
imc_bus_reset();
}
void
imc_watchdog_tickle(void)
{
bus_space_write_4(isc.iot, isc.ioh, IMC_WDOG, 0);
}