diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2019-10-25 14:17:08 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-10-25 14:17:08 +0100 |
| commit | bad76ac319556dab2497429d473b49a237672e1c (patch) | |
| tree | b97e8459af7e56c945ae0e033d9e36547e13004c /hw/rtc/sun4v-rtc.c | |
| parent | 7bc8f9734213b76e76631a483be13d6737c2adbc (diff) | |
| parent | fabb862f76f093cdd1610571de9ba714d3333c1c (diff) | |
Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-pull-request' into staging
Fix typos and docs, trivial changes and RTC devices split
# gpg: Signature made Fri 25 Oct 2019 09:35:02 BST
# gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg: issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C
* remotes/vivier2/tags/trivial-branch-pull-request:
hw/rtc/aspeed_rtc: Remove unused includes
hw/rtc/xlnx-zynqmp-rtc: Remove unused "ptimer.h" include
hw/rtc/mc146818: Include mc146818rtc_regs.h a bit less
hw: Move Aspeed RTC from hw/timer/ to hw/rtc/ subdirectory
hw: Move Exynos4210 RTC from hw/timer/ to hw/rtc/ subdirectory
hw: Move Xilinx ZynqMP RTC from hw/timer/ to hw/rtc/ subdirectory
hw: Move DS1338 device from hw/timer/ to hw/rtc/ subdirectory
hw: Move TWL92230 device from hw/timer/ to hw/rtc/ subdirectory
hw: Move sun4v hypervisor RTC from hw/timer/ to hw/rtc/ subdirectory
hw: Move M41T80 device from hw/timer/ to hw/rtc/ subdirectory
hw: Move M48T59 device from hw/timer/ to hw/rtc/ subdirectory
hw: Move MC146818 device from hw/timer/ to hw/rtc/ subdirectory
hw: Move PL031 device from hw/timer/ to hw/rtc/ subdirectory
hw/timer: Compile devices not target-dependent as common object
qemu-timer: reuse MIN macro in qemu_timeout_ns_to_ms
event_notifier: avoid dandling file descriptor in event_notifier_cleanup
util/async: avoid useless cast
pci_bridge: fix a typo in comment
qemu-options.hx: Update for reboot-timeout parameter
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# hw/timer/trace-events
Diffstat (limited to 'hw/rtc/sun4v-rtc.c')
| -rw-r--r-- | hw/rtc/sun4v-rtc.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/hw/rtc/sun4v-rtc.c b/hw/rtc/sun4v-rtc.c new file mode 100644 index 0000000000..ada01b5774 --- /dev/null +++ b/hw/rtc/sun4v-rtc.c @@ -0,0 +1,95 @@ +/* + * QEMU sun4v Real Time Clock device + * + * The sun4v_rtc device (sun4v tod clock) + * + * Copyright (c) 2016 Artyom Tarasenko + * + * This code is licensed under the GNU GPL v3 or (at your option) any later + * version. + */ + +#include "qemu/osdep.h" +#include "hw/sysbus.h" +#include "qemu/module.h" +#include "qemu/timer.h" +#include "hw/rtc/sun4v-rtc.h" +#include "trace.h" + + +#define TYPE_SUN4V_RTC "sun4v_rtc" +#define SUN4V_RTC(obj) OBJECT_CHECK(Sun4vRtc, (obj), TYPE_SUN4V_RTC) + +typedef struct Sun4vRtc { + SysBusDevice parent_obj; + + MemoryRegion iomem; +} Sun4vRtc; + +static uint64_t sun4v_rtc_read(void *opaque, hwaddr addr, + unsigned size) +{ + uint64_t val = get_clock_realtime() / NANOSECONDS_PER_SECOND; + if (!(addr & 4ULL)) { + /* accessing the high 32 bits */ + val >>= 32; + } + trace_sun4v_rtc_read(addr, val); + return val; +} + +static void sun4v_rtc_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + trace_sun4v_rtc_write(addr, val); +} + +static const MemoryRegionOps sun4v_rtc_ops = { + .read = sun4v_rtc_read, + .write = sun4v_rtc_write, + .endianness = DEVICE_NATIVE_ENDIAN, +}; + +void sun4v_rtc_init(hwaddr addr) +{ + DeviceState *dev; + SysBusDevice *s; + + dev = qdev_create(NULL, TYPE_SUN4V_RTC); + s = SYS_BUS_DEVICE(dev); + + qdev_init_nofail(dev); + + sysbus_mmio_map(s, 0, addr); +} + +static void sun4v_rtc_realize(DeviceState *dev, Error **errp) +{ + SysBusDevice *sbd = SYS_BUS_DEVICE(dev); + Sun4vRtc *s = SUN4V_RTC(dev); + + memory_region_init_io(&s->iomem, OBJECT(s), &sun4v_rtc_ops, s, + "sun4v-rtc", 0x08ULL); + sysbus_init_mmio(sbd, &s->iomem); +} + +static void sun4v_rtc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = sun4v_rtc_realize; +} + +static const TypeInfo sun4v_rtc_info = { + .name = TYPE_SUN4V_RTC, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(Sun4vRtc), + .class_init = sun4v_rtc_class_init, +}; + +static void sun4v_rtc_register_types(void) +{ + type_register_static(&sun4v_rtc_info); +} + +type_init(sun4v_rtc_register_types) |