lm32: remove lm32_sys
Since we have now semihosting on the lm32 target, this device is no longer needed. Remove it. Signed-off-by: Michael Walle <michael@walle.cc>
This commit is contained in:
Michael Walle
parent
4e7d30a22a
commit
25156d1061
@ -29,7 +29,6 @@ obj-$(CONFIG_NSERIES) += cbus.o
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obj-$(CONFIG_ECCMEMCTL) += eccmemctl.o
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obj-$(CONFIG_EXYNOS4) += exynos4210_pmu.o
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obj-$(CONFIG_IMX) += imx_ccm.o
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obj-$(CONFIG_LM32) += lm32_sys.o
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obj-$(CONFIG_MILKYMIST) += milkymist-hpdmc.o
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obj-$(CONFIG_MILKYMIST) += milkymist-pfpu.o
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obj-$(CONFIG_MAINSTONE) += mst_fpga.o
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@ -1,179 +0,0 @@
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/*
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* QEMU model of the LatticeMico32 system control block.
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*
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* Copyright (c) 2010 Michael Walle <michael@walle.cc>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This model is mainly intended for testing purposes and doesn't fit to any
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* real hardware. On the one hand it provides a control register (R_CTRL) on
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* the other hand it supports the lm32 tests.
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*
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* A write to the control register causes a system shutdown.
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* Tests first write the pointer to a test name to the test name register
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* (R_TESTNAME) and then write a zero to the pass/fail register (R_PASSFAIL) if
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* the test is passed or any non-zero value to it if the test is failed.
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*/
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#include "hw/hw.h"
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#include "hw/sysbus.h"
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#include "trace.h"
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#include "qemu/log.h"
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#include "qemu/error-report.h"
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#include "sysemu/sysemu.h"
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enum {
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R_CTRL = 0,
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R_PASSFAIL,
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R_TESTNAME,
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R_MAX
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};
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#define MAX_TESTNAME_LEN 32
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#define TYPE_LM32_SYS "lm32-sys"
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#define LM32_SYS(obj) OBJECT_CHECK(LM32SysState, (obj), TYPE_LM32_SYS)
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struct LM32SysState {
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SysBusDevice parent_obj;
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MemoryRegion iomem;
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uint32_t base;
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uint32_t regs[R_MAX];
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uint8_t testname[MAX_TESTNAME_LEN];
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};
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typedef struct LM32SysState LM32SysState;
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static void copy_testname(LM32SysState *s)
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{
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cpu_physical_memory_read(s->regs[R_TESTNAME], s->testname,
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MAX_TESTNAME_LEN);
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s->testname[MAX_TESTNAME_LEN - 1] = '\0';
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}
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static void sys_write(void *opaque, hwaddr addr,
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uint64_t value, unsigned size)
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{
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LM32SysState *s = opaque;
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char *testname;
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trace_lm32_sys_memory_write(addr, value);
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addr >>= 2;
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switch (addr) {
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case R_CTRL:
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qemu_system_shutdown_request();
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break;
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case R_PASSFAIL:
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s->regs[addr] = value;
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testname = (char *)s->testname;
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fprintf(stderr, "TC %-*s %s\n", MAX_TESTNAME_LEN,
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testname, (value) ? "FAILED" : "OK");
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if (value) {
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cpu_dump_state(qemu_get_cpu(0), stderr, fprintf, 0);
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}
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break;
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case R_TESTNAME:
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s->regs[addr] = value;
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copy_testname(s);
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break;
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default:
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error_report("lm32_sys: write access to unknown register 0x"
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TARGET_FMT_plx, addr << 2);
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break;
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}
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}
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static bool sys_ops_accepts(void *opaque, hwaddr addr,
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unsigned size, bool is_write)
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{
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return is_write && size == 4;
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}
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static const MemoryRegionOps sys_ops = {
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.write = sys_write,
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.valid.accepts = sys_ops_accepts,
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.endianness = DEVICE_NATIVE_ENDIAN,
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};
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static void sys_reset(DeviceState *d)
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{
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LM32SysState *s = LM32_SYS(d);
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int i;
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for (i = 0; i < R_MAX; i++) {
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s->regs[i] = 0;
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}
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memset(s->testname, 0, MAX_TESTNAME_LEN);
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}
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static int lm32_sys_init(SysBusDevice *dev)
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{
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LM32SysState *s = LM32_SYS(dev);
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memory_region_init_io(&s->iomem, OBJECT(dev), &sys_ops , s,
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"sys", R_MAX * 4);
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sysbus_init_mmio(dev, &s->iomem);
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/* Note: This device is not created in the board initialization,
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* instead it has to be added with the -device parameter. Therefore,
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* the device maps itself. */
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sysbus_mmio_map(dev, 0, s->base);
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return 0;
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}
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static const VMStateDescription vmstate_lm32_sys = {
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.name = "lm32-sys",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = (VMStateField[]) {
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VMSTATE_UINT32_ARRAY(regs, LM32SysState, R_MAX),
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VMSTATE_BUFFER(testname, LM32SysState),
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VMSTATE_END_OF_LIST()
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}
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};
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static Property lm32_sys_properties[] = {
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DEFINE_PROP_UINT32("base", LM32SysState, base, 0xffff0000),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void lm32_sys_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
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k->init = lm32_sys_init;
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dc->reset = sys_reset;
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dc->vmsd = &vmstate_lm32_sys;
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dc->props = lm32_sys_properties;
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}
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static const TypeInfo lm32_sys_info = {
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.name = TYPE_LM32_SYS,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(LM32SysState),
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.class_init = lm32_sys_class_init,
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};
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static void lm32_sys_register_types(void)
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{
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type_register_static(&lm32_sys_info);
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}
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type_init(lm32_sys_register_types)
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@ -16,16 +16,6 @@ This will make serial0 (the lm32_uart) and serial1 (the JTAG UART)
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available as virtual consoles.
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Programmatically terminate the emulator
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----------------------------------------
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Originally neither the LatticeMico32 nor its peripherals support a
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mechanism to shut down the machine. Emulation aware programs can write to a
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to a special register within the system control block to shut down the
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virtual machine. For more details see hw/lm32_sys.c. The lm32-evr is the
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first BSP which instantiate this model. A (32 bit) write to 0xfff0000
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causes a vm shutdown.
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Semihosting
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-----------
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Semihosting on this target is supported. Some system calls like read, write
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@ -627,9 +627,6 @@ lm32_uart_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
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lm32_uart_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
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lm32_uart_irq_state(int level) "irq state %d"
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# hw/misc/lm32_sys.c
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lm32_sys_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
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# hw/scsi/megasas.c
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megasas_init_firmware(uint64_t pa) "pa %" PRIx64 " "
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megasas_init_queue(uint64_t queue_pa, int queue_len, uint64_t head, uint64_t tail, uint32_t flags) "queue at %" PRIx64 " len %d head %" PRIx64 " tail %" PRIx64 " flags %x"
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