diff options
| -rw-r--r-- | hw/arm/sbsa-ref.c | 1 | ||||
| -rw-r--r-- | hw/watchdog/sbsa_gwdt.c | 15 | ||||
| -rw-r--r-- | include/hw/watchdog/sbsa_gwdt.h | 3 |
3 files changed, 16 insertions, 3 deletions
diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c index 36f6f71..57c337f 100644 --- a/hw/arm/sbsa-ref.c +++ b/hw/arm/sbsa-ref.c @@ -543,6 +543,7 @@ static void create_wdt(const SBSAMachineState *sms) SysBusDevice *s = SYS_BUS_DEVICE(dev); int irq = sbsa_ref_irqmap[SBSA_GWDT_WS0]; + qdev_prop_set_uint64(dev, "clock-frequency", SBSA_GTIMER_HZ); sysbus_realize_and_unref(s, &error_fatal); sysbus_mmio_map(s, 0, rbase); sysbus_mmio_map(s, 1, cbase); diff --git a/hw/watchdog/sbsa_gwdt.c b/hw/watchdog/sbsa_gwdt.c index 96895d7..d437535 100644 --- a/hw/watchdog/sbsa_gwdt.c +++ b/hw/watchdog/sbsa_gwdt.c @@ -18,6 +18,7 @@ #include "qemu/osdep.h" #include "sysemu/reset.h" #include "sysemu/watchdog.h" +#include "hw/qdev-properties.h" #include "hw/watchdog/sbsa_gwdt.h" #include "qemu/timer.h" #include "migration/vmstate.h" @@ -109,7 +110,7 @@ static void sbsa_gwdt_update_timer(SBSA_GWDTState *s, WdtRefreshType rtype) timeout = s->woru; timeout <<= 32; timeout |= s->worl; - timeout = muldiv64(timeout, NANOSECONDS_PER_SECOND, SBSA_TIMER_FREQ); + timeout = muldiv64(timeout, NANOSECONDS_PER_SECOND, s->freq); timeout += qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); if ((rtype == EXPLICIT_REFRESH) || ((rtype == TIMEOUT_REFRESH) && @@ -261,6 +262,17 @@ static void wdt_sbsa_gwdt_realize(DeviceState *dev, Error **errp) dev); } +static Property wdt_sbsa_gwdt_props[] = { + /* + * Timer frequency in Hz. This must match the frequency used by + * the CPU's generic timer. Default 62.5Hz matches QEMU's legacy + * CPU timer frequency default. + */ + DEFINE_PROP_UINT64("clock-frequency", struct SBSA_GWDTState, freq, + 62500000), + DEFINE_PROP_END_OF_LIST(), +}; + static void wdt_sbsa_gwdt_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -271,6 +283,7 @@ static void wdt_sbsa_gwdt_class_init(ObjectClass *klass, void *data) set_bit(DEVICE_CATEGORY_WATCHDOG, dc->categories); dc->vmsd = &vmstate_sbsa_gwdt; dc->desc = "SBSA-compliant generic watchdog device"; + device_class_set_props(dc, wdt_sbsa_gwdt_props); } static const TypeInfo wdt_sbsa_gwdt_info = { diff --git a/include/hw/watchdog/sbsa_gwdt.h b/include/hw/watchdog/sbsa_gwdt.h index 70b137d..4bdc6c6 100644 --- a/include/hw/watchdog/sbsa_gwdt.h +++ b/include/hw/watchdog/sbsa_gwdt.h @@ -55,8 +55,6 @@ #define SBSA_GWDT_RMMIO_SIZE 0x1000 #define SBSA_GWDT_CMMIO_SIZE 0x1000 -#define SBSA_TIMER_FREQ 62500000 /* Hz */ - typedef struct SBSA_GWDTState { /* <private> */ SysBusDevice parent_obj; @@ -67,6 +65,7 @@ typedef struct SBSA_GWDTState { qemu_irq irq; QEMUTimer *timer; + uint64_t freq; uint32_t id; uint32_t wcs; |