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aspeed: add a watchdog controller 

This enables reboot of a guest from U-Boot and Linux.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-id: 1485452251-1593-3-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2017-02-07 18:29:59 +00:00 committed by Peter Maydell
parent 854123bf8d
commit 013befe1ca
2 changed files with 15 additions and 0 deletions
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13
hw/arm/aspeed_soc.c
View File

@ -31,6 +31,7 @@
#define ASPEED_SOC_SCU_BASE 0x1E6E2000
#define ASPEED_SOC_SRAM_BASE 0x1E720000
#define ASPEED_SOC_TIMER_BASE 0x1E782000
#define ASPEED_SOC_WDT_BASE 0x1E785000
#define ASPEED_SOC_I2C_BASE 0x1E78A000
static const int uart_irqs[] = { 9, 32, 33, 34, 10 };
@ -170,6 +171,10 @@ static void aspeed_soc_init(Object *obj)
sc->info->silicon_rev);
object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
"ram-size", &error_abort);
object_initialize(&s->wdt, sizeof(s->wdt), TYPE_ASPEED_WDT);
object_property_add_child(obj, "wdt", OBJECT(&s->wdt), NULL);
qdev_set_parent_bus(DEVICE(&s->wdt), sysbus_get_default());
}
static void aspeed_soc_realize(DeviceState *dev, Error **errp)
@ -286,6 +291,14 @@ static void aspeed_soc_realize(DeviceState *dev, Error **errp)
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdmc), 0, ASPEED_SOC_SDMC_BASE);
/* Watch dog */
object_property_set_bool(OBJECT(&s->wdt), true, "realized", &err);
if (err) {
error_propagate(errp, err);
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt), 0, ASPEED_SOC_WDT_BASE);
}
static void aspeed_soc_class_init(ObjectClass *oc, void *data)

2
include/hw/arm/aspeed_soc.h
View File

@ -19,6 +19,7 @@
#include "hw/timer/aspeed_timer.h"
#include "hw/i2c/aspeed_i2c.h"
#include "hw/ssi/aspeed_smc.h"
#include "hw/watchdog/wdt_aspeed.h"
#define ASPEED_SPIS_NUM 2
@ -37,6 +38,7 @@ typedef struct AspeedSoCState {
AspeedSMCState fmc;
AspeedSMCState spi[ASPEED_SPIS_NUM];
AspeedSDMCState sdmc;
AspeedWDTState wdt;
} AspeedSoCState;
#define TYPE_ASPEED_SOC "aspeed-soc"