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>
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@ -31,6 +31,7 @@
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#define ASPEED_SOC_SCU_BASE 0x1E6E2000
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#define ASPEED_SOC_SRAM_BASE 0x1E720000
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#define ASPEED_SOC_TIMER_BASE 0x1E782000
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#define ASPEED_SOC_WDT_BASE 0x1E785000
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#define ASPEED_SOC_I2C_BASE 0x1E78A000
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static const int uart_irqs[] = { 9, 32, 33, 34, 10 };
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@ -170,6 +171,10 @@ static void aspeed_soc_init(Object *obj)
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sc->info->silicon_rev);
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object_property_add_alias(obj, "ram-size", OBJECT(&s->sdmc),
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"ram-size", &error_abort);
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object_initialize(&s->wdt, sizeof(s->wdt), TYPE_ASPEED_WDT);
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object_property_add_child(obj, "wdt", OBJECT(&s->wdt), NULL);
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qdev_set_parent_bus(DEVICE(&s->wdt), sysbus_get_default());
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}
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static void aspeed_soc_realize(DeviceState *dev, Error **errp)
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@ -286,6 +291,14 @@ static void aspeed_soc_realize(DeviceState *dev, Error **errp)
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return;
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}
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->sdmc), 0, ASPEED_SOC_SDMC_BASE);
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/* Watch dog */
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object_property_set_bool(OBJECT(&s->wdt), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt), 0, ASPEED_SOC_WDT_BASE);
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}
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static void aspeed_soc_class_init(ObjectClass *oc, void *data)
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@ -19,6 +19,7 @@
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#include "hw/timer/aspeed_timer.h"
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#include "hw/i2c/aspeed_i2c.h"
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#include "hw/ssi/aspeed_smc.h"
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#include "hw/watchdog/wdt_aspeed.h"
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#define ASPEED_SPIS_NUM 2
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@ -37,6 +38,7 @@ typedef struct AspeedSoCState {
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AspeedSMCState fmc;
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AspeedSMCState spi[ASPEED_SPIS_NUM];
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AspeedSDMCState sdmc;
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AspeedWDTState wdt;
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} AspeedSoCState;
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#define TYPE_ASPEED_SOC "aspeed-soc"
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