diff options
author | Markus Armbruster <armbru@redhat.com> | 2021-05-03 10:40:33 +0200 |
---|---|---|
committer | Markus Armbruster <armbru@redhat.com> | 2021-05-12 18:20:25 +0200 |
commit | 9d49bcf6992a2ba77f79d2512e23b8ca26d72f6a (patch) | |
tree | 0d3adfe1d417577ef0c78894d47a4956f318cb2f /hw/timer | |
parent | 09ec85176e4095be15f233ebc870d5680123f024 (diff) |
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]
Diffstat (limited to 'hw/timer')
-rw-r--r-- | hw/timer/lm32_timer.c | 249 | ||||
-rw-r--r-- | hw/timer/meson.build | 2 | ||||
-rw-r--r-- | hw/timer/milkymist-sysctl.c | 361 | ||||
-rw-r--r-- | hw/timer/trace-events | 17 |
4 files changed, 0 insertions, 629 deletions
diff --git a/hw/timer/lm32_timer.c b/hw/timer/lm32_timer.c deleted file mode 100644 index eeaf0ada5f..0000000000 --- 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) diff --git a/hw/timer/meson.build b/hw/timer/meson.build index 598d058506..f2081d261a 100644 --- a/hw/timer/meson.build +++ b/hw/timer/meson.build @@ -19,8 +19,6 @@ softmmu_ss.add(when: 'CONFIG_HPET', if_true: files('hpet.c')) softmmu_ss.add(when: 'CONFIG_I8254', if_true: files('i8254_common.c', 'i8254.c')) softmmu_ss.add(when: 'CONFIG_IMX', if_true: files('imx_epit.c')) softmmu_ss.add(when: 'CONFIG_IMX', if_true: files('imx_gpt.c')) -softmmu_ss.add(when: 'CONFIG_LM32_DEVICES', if_true: files('lm32_timer.c')) -softmmu_ss.add(when: 'CONFIG_MILKYMIST', if_true: files('milkymist-sysctl.c')) softmmu_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files('mips_gictimer.c')) softmmu_ss.add(when: 'CONFIG_MSF2', if_true: files('mss-timer.c')) softmmu_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_timer.c')) diff --git a/hw/timer/milkymist-sysctl.c b/hw/timer/milkymist-sysctl.c deleted file mode 100644 index 9ecea63861..0000000000 --- a/hw/timer/milkymist-sysctl.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * QEMU model of the Milkymist System Controller. - * - * Copyright (c) 2010-2012 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://milkymist.walle.cc/socdoc/sysctl.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 "sysemu/runstate.h" -#include "hw/ptimer.h" -#include "hw/qdev-properties.h" -#include "qemu/error-report.h" -#include "qemu/module.h" -#include "qom/object.h" - -enum { - CTRL_ENABLE = (1<<0), - CTRL_AUTORESTART = (1<<1), -}; - -enum { - ICAP_READY = (1<<0), -}; - -enum { - R_GPIO_IN = 0, - R_GPIO_OUT, - R_GPIO_INTEN, - R_TIMER0_CONTROL = 4, - R_TIMER0_COMPARE, - R_TIMER0_COUNTER, - R_TIMER1_CONTROL = 8, - R_TIMER1_COMPARE, - R_TIMER1_COUNTER, - R_ICAP = 16, - R_DBG_SCRATCHPAD = 20, - R_DBG_WRITE_LOCK, - R_CLK_FREQUENCY = 29, - R_CAPABILITIES, - R_SYSTEM_ID, - R_MAX -}; - -#define TYPE_MILKYMIST_SYSCTL "milkymist-sysctl" -OBJECT_DECLARE_SIMPLE_TYPE(MilkymistSysctlState, MILKYMIST_SYSCTL) - -struct MilkymistSysctlState { - SysBusDevice parent_obj; - - MemoryRegion regs_region; - - ptimer_state *ptimer0; - ptimer_state *ptimer1; - - uint32_t freq_hz; - uint32_t capabilities; - uint32_t systemid; - uint32_t strappings; - - uint32_t regs[R_MAX]; - - qemu_irq gpio_irq; - qemu_irq timer0_irq; - qemu_irq timer1_irq; -}; - -static void sysctl_icap_write(MilkymistSysctlState *s, uint32_t value) -{ - trace_milkymist_sysctl_icap_write(value); - switch (value & 0xffff) { - case 0x000e: - qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); - break; - } -} - -static uint64_t sysctl_read(void *opaque, hwaddr addr, - unsigned size) -{ - MilkymistSysctlState *s = opaque; - uint32_t r = 0; - - addr >>= 2; - switch (addr) { - case R_TIMER0_COUNTER: - r = (uint32_t)ptimer_get_count(s->ptimer0); - /* milkymist timer counts up */ - r = s->regs[R_TIMER0_COMPARE] - r; - break; - case R_TIMER1_COUNTER: - r = (uint32_t)ptimer_get_count(s->ptimer1); - /* milkymist timer counts up */ - r = s->regs[R_TIMER1_COMPARE] - r; - break; - case R_GPIO_IN: - case R_GPIO_OUT: - case R_GPIO_INTEN: - case R_TIMER0_CONTROL: - case R_TIMER0_COMPARE: - case R_TIMER1_CONTROL: - case R_TIMER1_COMPARE: - case R_ICAP: - case R_DBG_SCRATCHPAD: - case R_DBG_WRITE_LOCK: - case R_CLK_FREQUENCY: - case R_CAPABILITIES: - case R_SYSTEM_ID: - r = s->regs[addr]; - break; - - default: - error_report("milkymist_sysctl: read access to unknown register 0x" - TARGET_FMT_plx, addr << 2); - break; - } - - trace_milkymist_sysctl_memory_read(addr << 2, r); - - return r; -} - -static void sysctl_write(void *opaque, hwaddr addr, uint64_t value, - unsigned size) -{ - MilkymistSysctlState *s = opaque; - - trace_milkymist_sysctl_memory_write(addr, value); - - addr >>= 2; - switch (addr) { - case R_GPIO_OUT: - case R_GPIO_INTEN: - case R_TIMER0_COUNTER: - case R_TIMER1_COUNTER: - case R_DBG_SCRATCHPAD: - s->regs[addr] = value; - break; - case R_TIMER0_COMPARE: - ptimer_transaction_begin(s->ptimer0); - ptimer_set_limit(s->ptimer0, value, 0); - s->regs[addr] = value; - ptimer_transaction_commit(s->ptimer0); - break; - case R_TIMER1_COMPARE: - ptimer_transaction_begin(s->ptimer1); - ptimer_set_limit(s->ptimer1, value, 0); - s->regs[addr] = value; - ptimer_transaction_commit(s->ptimer1); - break; - case R_TIMER0_CONTROL: - ptimer_transaction_begin(s->ptimer0); - s->regs[addr] = value; - if (s->regs[R_TIMER0_CONTROL] & CTRL_ENABLE) { - trace_milkymist_sysctl_start_timer0(); - ptimer_set_count(s->ptimer0, - s->regs[R_TIMER0_COMPARE] - s->regs[R_TIMER0_COUNTER]); - ptimer_run(s->ptimer0, 0); - } else { - trace_milkymist_sysctl_stop_timer0(); - ptimer_stop(s->ptimer0); - } - ptimer_transaction_commit(s->ptimer0); - break; - case R_TIMER1_CONTROL: - ptimer_transaction_begin(s->ptimer1); - s->regs[addr] = value; - if (s->regs[R_TIMER1_CONTROL] & CTRL_ENABLE) { - trace_milkymist_sysctl_start_timer1(); - ptimer_set_count(s->ptimer1, - s->regs[R_TIMER1_COMPARE] - s->regs[R_TIMER1_COUNTER]); - ptimer_run(s->ptimer1, 0); - } else { - trace_milkymist_sysctl_stop_timer1(); - ptimer_stop(s->ptimer1); - } - ptimer_transaction_commit(s->ptimer1); - break; - case R_ICAP: - sysctl_icap_write(s, value); - break; - case R_DBG_WRITE_LOCK: - s->regs[addr] = 1; - break; - case R_SYSTEM_ID: - qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); - break; - - case R_GPIO_IN: - case R_CLK_FREQUENCY: - case R_CAPABILITIES: - error_report("milkymist_sysctl: write to read-only register 0x" - TARGET_FMT_plx, addr << 2); - break; - - default: - error_report("milkymist_sysctl: write access to unknown register 0x" - TARGET_FMT_plx, addr << 2); - break; - } -} - -static const MemoryRegionOps sysctl_mmio_ops = { - .read = sysctl_read, - .write = sysctl_write, - .valid = { - .min_access_size = 4, - .max_access_size = 4, - }, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void timer0_hit(void *opaque) -{ - MilkymistSysctlState *s = opaque; - - if (!(s->regs[R_TIMER0_CONTROL] & CTRL_AUTORESTART)) { - s->regs[R_TIMER0_CONTROL] &= ~CTRL_ENABLE; - trace_milkymist_sysctl_stop_timer0(); - ptimer_stop(s->ptimer0); - } - - trace_milkymist_sysctl_pulse_irq_timer0(); - qemu_irq_pulse(s->timer0_irq); -} - -static void timer1_hit(void *opaque) -{ - MilkymistSysctlState *s = opaque; - - if (!(s->regs[R_TIMER1_CONTROL] & CTRL_AUTORESTART)) { - s->regs[R_TIMER1_CONTROL] &= ~CTRL_ENABLE; - trace_milkymist_sysctl_stop_timer1(); - ptimer_stop(s->ptimer1); - } - - trace_milkymist_sysctl_pulse_irq_timer1(); - qemu_irq_pulse(s->timer1_irq); -} - -static void milkymist_sysctl_reset(DeviceState *d) -{ - MilkymistSysctlState *s = MILKYMIST_SYSCTL(d); - int i; - - for (i = 0; i < R_MAX; i++) { - s->regs[i] = 0; - } - - ptimer_transaction_begin(s->ptimer0); - ptimer_stop(s->ptimer0); - ptimer_transaction_commit(s->ptimer0); - ptimer_transaction_begin(s->ptimer1); - ptimer_stop(s->ptimer1); - ptimer_transaction_commit(s->ptimer1); - - /* defaults */ - s->regs[R_ICAP] = ICAP_READY; - s->regs[R_SYSTEM_ID] = s->systemid; - s->regs[R_CLK_FREQUENCY] = s->freq_hz; - s->regs[R_CAPABILITIES] = s->capabilities; - s->regs[R_GPIO_IN] = s->strappings; -} - -static void milkymist_sysctl_init(Object *obj) -{ - MilkymistSysctlState *s = MILKYMIST_SYSCTL(obj); - SysBusDevice *dev = SYS_BUS_DEVICE(obj); - - sysbus_init_irq(dev, &s->gpio_irq); - sysbus_init_irq(dev, &s->timer0_irq); - sysbus_init_irq(dev, &s->timer1_irq); - - memory_region_init_io(&s->regs_region, obj, &sysctl_mmio_ops, s, - "milkymist-sysctl", R_MAX * 4); - sysbus_init_mmio(dev, &s->regs_region); -} - -static void milkymist_sysctl_realize(DeviceState *dev, Error **errp) -{ - MilkymistSysctlState *s = MILKYMIST_SYSCTL(dev); - - s->ptimer0 = ptimer_init(timer0_hit, s, PTIMER_POLICY_DEFAULT); - s->ptimer1 = ptimer_init(timer1_hit, s, PTIMER_POLICY_DEFAULT); - - ptimer_transaction_begin(s->ptimer0); - ptimer_set_freq(s->ptimer0, s->freq_hz); - ptimer_transaction_commit(s->ptimer0); - ptimer_transaction_begin(s->ptimer1); - ptimer_set_freq(s->ptimer1, s->freq_hz); - ptimer_transaction_commit(s->ptimer1); -} - -static const VMStateDescription vmstate_milkymist_sysctl = { - .name = "milkymist-sysctl", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32_ARRAY(regs, MilkymistSysctlState, R_MAX), - VMSTATE_PTIMER(ptimer0, MilkymistSysctlState), - VMSTATE_PTIMER(ptimer1, MilkymistSysctlState), - VMSTATE_END_OF_LIST() - } -}; - -static Property milkymist_sysctl_properties[] = { - DEFINE_PROP_UINT32("frequency", MilkymistSysctlState, - freq_hz, 80000000), - DEFINE_PROP_UINT32("capabilities", MilkymistSysctlState, - capabilities, 0x00000000), - DEFINE_PROP_UINT32("systemid", MilkymistSysctlState, - systemid, 0x10014d31), - DEFINE_PROP_UINT32("gpio_strappings", MilkymistSysctlState, - strappings, 0x00000001), - DEFINE_PROP_END_OF_LIST(), -}; - -static void milkymist_sysctl_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->realize = milkymist_sysctl_realize; - dc->reset = milkymist_sysctl_reset; - dc->vmsd = &vmstate_milkymist_sysctl; - device_class_set_props(dc, milkymist_sysctl_properties); -} - -static const TypeInfo milkymist_sysctl_info = { - .name = TYPE_MILKYMIST_SYSCTL, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(MilkymistSysctlState), - .instance_init = milkymist_sysctl_init, - .class_init = milkymist_sysctl_class_init, -}; - -static void milkymist_sysctl_register_types(void) -{ - type_register_static(&milkymist_sysctl_info); -} - -type_init(milkymist_sysctl_register_types) diff --git a/hw/timer/trace-events b/hw/timer/trace-events index f8b9db25c2..029fb56280 100644 --- a/hw/timer/trace-events +++ b/hw/timer/trace-events @@ -24,23 +24,6 @@ grlib_gptimer_hit(int id) "timer:%d HIT" grlib_gptimer_readl(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x" grlib_gptimer_writel(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x" -# lm32_timer.c -lm32_timer_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" -lm32_timer_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" -lm32_timer_hit(void) "timer hit" -lm32_timer_irq_state(int level) "irq state %d" - -# milkymist-sysctl.c -milkymist_sysctl_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" -milkymist_sysctl_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" -milkymist_sysctl_icap_write(uint32_t value) "value 0x%08x" -milkymist_sysctl_start_timer0(void) "Start timer0" -milkymist_sysctl_stop_timer0(void) "Stop timer0" -milkymist_sysctl_start_timer1(void) "Start timer1" -milkymist_sysctl_stop_timer1(void) "Stop timer1" -milkymist_sysctl_pulse_irq_timer0(void) "Pulse IRQ Timer0" -milkymist_sysctl_pulse_irq_timer1(void) "Pulse IRQ Timer1" - # aspeed_timer.c aspeed_timer_ctrl_enable(uint8_t i, bool enable) "Timer %" PRIu8 ": %d" aspeed_timer_ctrl_external_clock(uint8_t i, bool enable) "Timer %" PRIu8 ": %d" |