Drop the deprecated lm32 target

Target lm32 was deprecated in commit d8498005122, v5.2.0.  See there
for rationale.

Some of its code lives on in device models derived from milkymist
ones: hw/char/digic-uart.c and hw/display/bcm2835_fb.c.

Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210503084034.3804963-2-armbru@redhat.com>
Acked-by: Michael Walle <michael@walle.cc>
[Trivial conflicts resolved, reST markup fixed]

1 files changed, 0 insertions, 249 deletions

diff --git a/hw/timer/lm32_timer.c b/hw/timer/lm32_timer.c
deleted file mode 100644
index eeaf0ad..0000000
--- a/hw/timer/lm32_timer.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- *  QEMU model of the LatticeMico32 timer block.
- *
- *  Copyright (c) 2010 Michael Walle <michael@walle.cc>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- *
- * Specification available at:
- *   http://www.latticesemi.com/documents/mico32timer.pdf
- */
-
-#include "qemu/osdep.h"
-#include "hw/irq.h"
-#include "hw/sysbus.h"
-#include "migration/vmstate.h"
-#include "trace.h"
-#include "qemu/timer.h"
-#include "hw/ptimer.h"
-#include "hw/qdev-properties.h"
-#include "qemu/error-report.h"
-#include "qemu/module.h"
-#include "qom/object.h"
-
-#define DEFAULT_FREQUENCY (50*1000000)
-
-enum {
-    R_SR = 0,
-    R_CR,
-    R_PERIOD,
-    R_SNAPSHOT,
-    R_MAX
-};
-
-enum {
-    SR_TO    = (1 << 0),
-    SR_RUN   = (1 << 1),
-};
-
-enum {
-    CR_ITO   = (1 << 0),
-    CR_CONT  = (1 << 1),
-    CR_START = (1 << 2),
-    CR_STOP  = (1 << 3),
-};
-
-#define TYPE_LM32_TIMER "lm32-timer"
-OBJECT_DECLARE_SIMPLE_TYPE(LM32TimerState, LM32_TIMER)
-
-struct LM32TimerState {
-    SysBusDevice parent_obj;
-
-    MemoryRegion iomem;
-
-    ptimer_state *ptimer;
-
-    qemu_irq irq;
-    uint32_t freq_hz;
-
-    uint32_t regs[R_MAX];
-};
-
-static void timer_update_irq(LM32TimerState *s)
-{
-    int state = (s->regs[R_SR] & SR_TO) && (s->regs[R_CR] & CR_ITO);
-
-    trace_lm32_timer_irq_state(state);
-    qemu_set_irq(s->irq, state);
-}
-
-static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
-{
-    LM32TimerState *s = opaque;
-    uint32_t r = 0;
-
-    addr >>= 2;
-    switch (addr) {
-    case R_SR:
-    case R_CR:
-    case R_PERIOD:
-        r = s->regs[addr];
-        break;
-    case R_SNAPSHOT:
-        r = (uint32_t)ptimer_get_count(s->ptimer);
-        break;
-    default:
-        error_report("lm32_timer: read access to unknown register 0x"
-                TARGET_FMT_plx, addr << 2);
-        break;
-    }
-
-    trace_lm32_timer_memory_read(addr << 2, r);
-    return r;
-}
-
-static void timer_write(void *opaque, hwaddr addr,
-                        uint64_t value, unsigned size)
-{
-    LM32TimerState *s = opaque;
-
-    trace_lm32_timer_memory_write(addr, value);
-
-    addr >>= 2;
-    switch (addr) {
-    case R_SR:
-        s->regs[R_SR] &= ~SR_TO;
-        break;
-    case R_CR:
-        ptimer_transaction_begin(s->ptimer);
-        s->regs[R_CR] = value;
-        if (s->regs[R_CR] & CR_START) {
-            ptimer_run(s->ptimer, 1);
-        }
-        if (s->regs[R_CR] & CR_STOP) {
-            ptimer_stop(s->ptimer);
-        }
-        ptimer_transaction_commit(s->ptimer);
-        break;
-    case R_PERIOD:
-        s->regs[R_PERIOD] = value;
-        ptimer_transaction_begin(s->ptimer);
-        ptimer_set_count(s->ptimer, value);
-        ptimer_transaction_commit(s->ptimer);
-        break;
-    case R_SNAPSHOT:
-        error_report("lm32_timer: write access to read only register 0x"
-                TARGET_FMT_plx, addr << 2);
-        break;
-    default:
-        error_report("lm32_timer: write access to unknown register 0x"
-                TARGET_FMT_plx, addr << 2);
-        break;
-    }
-    timer_update_irq(s);
-}
-
-static const MemoryRegionOps timer_ops = {
-    .read = timer_read,
-    .write = timer_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
-    .valid = {
-        .min_access_size = 4,
-        .max_access_size = 4,
-    },
-};
-
-static void timer_hit(void *opaque)
-{
-    LM32TimerState *s = opaque;
-
-    trace_lm32_timer_hit();
-
-    s->regs[R_SR] |= SR_TO;
-
-    if (s->regs[R_CR] & CR_CONT) {
-        ptimer_set_count(s->ptimer, s->regs[R_PERIOD]);
-        ptimer_run(s->ptimer, 1);
-    }
-    timer_update_irq(s);
-}
-
-static void timer_reset(DeviceState *d)
-{
-    LM32TimerState *s = LM32_TIMER(d);
-    int i;
-
-    for (i = 0; i < R_MAX; i++) {
-        s->regs[i] = 0;
-    }
-    ptimer_transaction_begin(s->ptimer);
-    ptimer_stop(s->ptimer);
-    ptimer_transaction_commit(s->ptimer);
-}
-
-static void lm32_timer_init(Object *obj)
-{
-    LM32TimerState *s = LM32_TIMER(obj);
-    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
-
-    sysbus_init_irq(dev, &s->irq);
-
-    memory_region_init_io(&s->iomem, obj, &timer_ops, s,
-                          "timer", R_MAX * 4);
-    sysbus_init_mmio(dev, &s->iomem);
-}
-
-static void lm32_timer_realize(DeviceState *dev, Error **errp)
-{
-    LM32TimerState *s = LM32_TIMER(dev);
-
-    s->ptimer = ptimer_init(timer_hit, s, PTIMER_POLICY_DEFAULT);
-
-    ptimer_transaction_begin(s->ptimer);
-    ptimer_set_freq(s->ptimer, s->freq_hz);
-    ptimer_transaction_commit(s->ptimer);
-}
-
-static const VMStateDescription vmstate_lm32_timer = {
-    .name = "lm32-timer",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_PTIMER(ptimer, LM32TimerState),
-        VMSTATE_UINT32(freq_hz, LM32TimerState),
-        VMSTATE_UINT32_ARRAY(regs, LM32TimerState, R_MAX),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static Property lm32_timer_properties[] = {
-    DEFINE_PROP_UINT32("frequency", LM32TimerState, freq_hz, DEFAULT_FREQUENCY),
-    DEFINE_PROP_END_OF_LIST(),
-};
-
-static void lm32_timer_class_init(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    dc->realize = lm32_timer_realize;
-    dc->reset = timer_reset;
-    dc->vmsd = &vmstate_lm32_timer;
-    device_class_set_props(dc, lm32_timer_properties);
-}
-
-static const TypeInfo lm32_timer_info = {
-    .name          = TYPE_LM32_TIMER,
-    .parent        = TYPE_SYS_BUS_DEVICE,
-    .instance_size = sizeof(LM32TimerState),
-    .instance_init = lm32_timer_init,
-    .class_init    = lm32_timer_class_init,
-};
-
-static void lm32_timer_register_types(void)
-{
-    type_register_static(&lm32_timer_info);
-}
-
-type_init(lm32_timer_register_types)