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-rw-r--r--hw/timer/Kconfig3
-rw-r--r--hw/timer/Makefile.objs1
-rw-r--r--hw/timer/pl031.c344
-rw-r--r--hw/timer/trace-events7
4 files changed, 0 insertions, 355 deletions
diff --git a/hw/timer/Kconfig b/hw/timer/Kconfig
index eefc95f35e..27c5dce09e 100644
--- a/hw/timer/Kconfig
+++ b/hw/timer/Kconfig
@@ -27,9 +27,6 @@ config M41T80
config M48T59
bool
-config PL031
- bool
-
config TWL92230
bool
depends on I2C
diff --git a/hw/timer/Makefile.objs b/hw/timer/Makefile.objs
index f407523aa4..9f64f6e11e 100644
--- a/hw/timer/Makefile.objs
+++ b/hw/timer/Makefile.objs
@@ -11,7 +11,6 @@ common-obj-$(CONFIG_M48T59) += m48t59.o
ifeq ($(CONFIG_ISA_BUS),y)
common-obj-$(CONFIG_M48T59) += m48t59-isa.o
endif
-common-obj-$(CONFIG_PL031) += pl031.o
common-obj-$(CONFIG_PUV3) += puv3_ost.o
common-obj-$(CONFIG_TWL92230) += twl92230.o
common-obj-$(CONFIG_XILINX) += xilinx_timer.o
diff --git a/hw/timer/pl031.c b/hw/timer/pl031.c
deleted file mode 100644
index 2b3e261006..0000000000
--- a/hw/timer/pl031.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * ARM AMBA PrimeCell PL031 RTC
- *
- * Copyright (c) 2007 CodeSourcery
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "hw/timer/pl031.h"
-#include "migration/vmstate.h"
-#include "hw/irq.h"
-#include "hw/qdev-properties.h"
-#include "hw/sysbus.h"
-#include "qemu/timer.h"
-#include "sysemu/sysemu.h"
-#include "qemu/cutils.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "trace.h"
-
-#define RTC_DR 0x00 /* Data read register */
-#define RTC_MR 0x04 /* Match register */
-#define RTC_LR 0x08 /* Data load register */
-#define RTC_CR 0x0c /* Control register */
-#define RTC_IMSC 0x10 /* Interrupt mask and set register */
-#define RTC_RIS 0x14 /* Raw interrupt status register */
-#define RTC_MIS 0x18 /* Masked interrupt status register */
-#define RTC_ICR 0x1c /* Interrupt clear register */
-
-static const unsigned char pl031_id[] = {
- 0x31, 0x10, 0x14, 0x00, /* Device ID */
- 0x0d, 0xf0, 0x05, 0xb1 /* Cell ID */
-};
-
-static void pl031_update(PL031State *s)
-{
- uint32_t flags = s->is & s->im;
-
- trace_pl031_irq_state(flags);
- qemu_set_irq(s->irq, flags);
-}
-
-static void pl031_interrupt(void * opaque)
-{
- PL031State *s = (PL031State *)opaque;
-
- s->is = 1;
- trace_pl031_alarm_raised();
- pl031_update(s);
-}
-
-static uint32_t pl031_get_count(PL031State *s)
-{
- int64_t now = qemu_clock_get_ns(rtc_clock);
- return s->tick_offset + now / NANOSECONDS_PER_SECOND;
-}
-
-static void pl031_set_alarm(PL031State *s)
-{
- uint32_t ticks;
-
- /* The timer wraps around. This subtraction also wraps in the same way,
- and gives correct results when alarm < now_ticks. */
- ticks = s->mr - pl031_get_count(s);
- trace_pl031_set_alarm(ticks);
- if (ticks == 0) {
- timer_del(s->timer);
- pl031_interrupt(s);
- } else {
- int64_t now = qemu_clock_get_ns(rtc_clock);
- timer_mod(s->timer, now + (int64_t)ticks * NANOSECONDS_PER_SECOND);
- }
-}
-
-static uint64_t pl031_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- PL031State *s = (PL031State *)opaque;
- uint64_t r;
-
- switch (offset) {
- case RTC_DR:
- r = pl031_get_count(s);
- break;
- case RTC_MR:
- r = s->mr;
- break;
- case RTC_IMSC:
- r = s->im;
- break;
- case RTC_RIS:
- r = s->is;
- break;
- case RTC_LR:
- r = s->lr;
- break;
- case RTC_CR:
- /* RTC is permanently enabled. */
- r = 1;
- break;
- case RTC_MIS:
- r = s->is & s->im;
- break;
- case 0xfe0 ... 0xfff:
- r = pl031_id[(offset - 0xfe0) >> 2];
- break;
- case RTC_ICR:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl031: read of write-only register at offset 0x%x\n",
- (int)offset);
- r = 0;
- break;
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl031_read: Bad offset 0x%x\n", (int)offset);
- r = 0;
- break;
- }
-
- trace_pl031_read(offset, r);
- return r;
-}
-
-static void pl031_write(void * opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- PL031State *s = (PL031State *)opaque;
-
- trace_pl031_write(offset, value);
-
- switch (offset) {
- case RTC_LR:
- s->tick_offset += value - pl031_get_count(s);
- pl031_set_alarm(s);
- break;
- case RTC_MR:
- s->mr = value;
- pl031_set_alarm(s);
- break;
- case RTC_IMSC:
- s->im = value & 1;
- pl031_update(s);
- break;
- case RTC_ICR:
- /* The PL031 documentation (DDI0224B) states that the interrupt is
- cleared when bit 0 of the written value is set. However the
- arm926e documentation (DDI0287B) states that the interrupt is
- cleared when any value is written. */
- s->is = 0;
- pl031_update(s);
- break;
- case RTC_CR:
- /* Written value is ignored. */
- break;
-
- case RTC_DR:
- case RTC_MIS:
- case RTC_RIS:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl031: write to read-only register at offset 0x%x\n",
- (int)offset);
- break;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR,
- "pl031_write: Bad offset 0x%x\n", (int)offset);
- break;
- }
-}
-
-static const MemoryRegionOps pl031_ops = {
- .read = pl031_read,
- .write = pl031_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void pl031_init(Object *obj)
-{
- PL031State *s = PL031(obj);
- SysBusDevice *dev = SYS_BUS_DEVICE(obj);
- struct tm tm;
-
- memory_region_init_io(&s->iomem, obj, &pl031_ops, s, "pl031", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
-
- sysbus_init_irq(dev, &s->irq);
- qemu_get_timedate(&tm, 0);
- s->tick_offset = mktimegm(&tm) -
- qemu_clock_get_ns(rtc_clock) / NANOSECONDS_PER_SECOND;
-
- s->timer = timer_new_ns(rtc_clock, pl031_interrupt, s);
-}
-
-static int pl031_pre_save(void *opaque)
-{
- PL031State *s = opaque;
-
- /*
- * The PL031 device model code uses the tick_offset field, which is
- * the offset between what the guest RTC should read and what the
- * QEMU rtc_clock reads:
- * guest_rtc = rtc_clock + tick_offset
- * and so
- * tick_offset = guest_rtc - rtc_clock
- *
- * We want to migrate this offset, which sounds straightforward.
- * Unfortunately older versions of QEMU migrated a conversion of this
- * offset into an offset from the vm_clock. (This was in turn an
- * attempt to be compatible with even older QEMU versions, but it
- * has incorrect behaviour if the rtc_clock is not the same as the
- * vm_clock.) So we put the actual tick_offset into a migration
- * subsection, and the backwards-compatible time-relative-to-vm_clock
- * in the main migration state.
- *
- * Calculate base time relative to QEMU_CLOCK_VIRTUAL:
- */
- int64_t delta = qemu_clock_get_ns(rtc_clock) - qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- s->tick_offset_vmstate = s->tick_offset + delta / NANOSECONDS_PER_SECOND;
-
- return 0;
-}
-
-static int pl031_pre_load(void *opaque)
-{
- PL031State *s = opaque;
-
- s->tick_offset_migrated = false;
- return 0;
-}
-
-static int pl031_post_load(void *opaque, int version_id)
-{
- PL031State *s = opaque;
-
- /*
- * If we got the tick_offset subsection, then we can just use
- * the value in that. Otherwise the source is an older QEMU and
- * has given us the offset from the vm_clock; convert it back to
- * an offset from the rtc_clock. This will cause time to incorrectly
- * go backwards compared to the host RTC, but this is unavoidable.
- */
-
- if (!s->tick_offset_migrated) {
- int64_t delta = qemu_clock_get_ns(rtc_clock) -
- qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- s->tick_offset = s->tick_offset_vmstate -
- delta / NANOSECONDS_PER_SECOND;
- }
- pl031_set_alarm(s);
- return 0;
-}
-
-static int pl031_tick_offset_post_load(void *opaque, int version_id)
-{
- PL031State *s = opaque;
-
- s->tick_offset_migrated = true;
- return 0;
-}
-
-static bool pl031_tick_offset_needed(void *opaque)
-{
- PL031State *s = opaque;
-
- return s->migrate_tick_offset;
-}
-
-static const VMStateDescription vmstate_pl031_tick_offset = {
- .name = "pl031/tick-offset",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = pl031_tick_offset_needed,
- .post_load = pl031_tick_offset_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(tick_offset, PL031State),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_pl031 = {
- .name = "pl031",
- .version_id = 1,
- .minimum_version_id = 1,
- .pre_save = pl031_pre_save,
- .pre_load = pl031_pre_load,
- .post_load = pl031_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(tick_offset_vmstate, PL031State),
- VMSTATE_UINT32(mr, PL031State),
- VMSTATE_UINT32(lr, PL031State),
- VMSTATE_UINT32(cr, PL031State),
- VMSTATE_UINT32(im, PL031State),
- VMSTATE_UINT32(is, PL031State),
- VMSTATE_END_OF_LIST()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_pl031_tick_offset,
- NULL
- }
-};
-
-static Property pl031_properties[] = {
- /*
- * True to correctly migrate the tick offset of the RTC. False to
- * obtain backward migration compatibility with older QEMU versions,
- * at the expense of the guest RTC going backwards compared with the
- * host RTC when the VM is saved/restored if using -rtc host.
- * (Even if set to 'true' older QEMU can migrate forward to newer QEMU;
- * 'false' also permits newer QEMU to migrate to older QEMU.)
- */
- DEFINE_PROP_BOOL("migrate-tick-offset",
- PL031State, migrate_tick_offset, true),
- DEFINE_PROP_END_OF_LIST()
-};
-
-static void pl031_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- dc->vmsd = &vmstate_pl031;
- dc->props = pl031_properties;
-}
-
-static const TypeInfo pl031_info = {
- .name = TYPE_PL031,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(PL031State),
- .instance_init = pl031_init,
- .class_init = pl031_class_init,
-};
-
-static void pl031_register_types(void)
-{
- type_register_static(&pl031_info);
-}
-
-type_init(pl031_register_types)
diff --git a/hw/timer/trace-events b/hw/timer/trace-events
index db02a9142c..6936fe8573 100644
--- a/hw/timer/trace-events
+++ b/hw/timer/trace-events
@@ -80,10 +80,3 @@ xlnx_zynqmp_rtc_gettime(int year, int month, int day, int hour, int min, int sec
# nrf51_timer.c
nrf51_timer_read(uint64_t addr, uint32_t value, unsigned size) "read addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
nrf51_timer_write(uint64_t addr, uint32_t value, unsigned size) "write addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u"
-
-# pl031.c
-pl031_irq_state(int level) "irq state %d"
-pl031_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-pl031_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
-pl031_alarm_raised(void) "alarm raised"
-pl031_set_alarm(uint32_t ticks) "alarm set for %u ticks"
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-12-18 12:54:51 +0100