summaryrefslogtreecommitdiffstats
path: root/qemu/hw/openrisc
diff options
context:
space:
mode:
Diffstat (limited to 'qemu/hw/openrisc')
-rw-r--r--qemu/hw/openrisc/Makefile.objs2
-rw-r--r--qemu/hw/openrisc/cputimer.c112
-rw-r--r--qemu/hw/openrisc/openrisc_sim.c148
-rw-r--r--qemu/hw/openrisc/pic_cpu.c61
4 files changed, 0 insertions, 323 deletions
diff --git a/qemu/hw/openrisc/Makefile.objs b/qemu/hw/openrisc/Makefile.objs
deleted file mode 100644
index 61246b149..000000000
--- a/qemu/hw/openrisc/Makefile.objs
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-y = pic_cpu.o cputimer.o
-obj-y += openrisc_sim.o
diff --git a/qemu/hw/openrisc/cputimer.c b/qemu/hw/openrisc/cputimer.c
deleted file mode 100644
index a98c799de..000000000
--- a/qemu/hw/openrisc/cputimer.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * QEMU OpenRISC timer support
- *
- * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
- * Zhizhou Zhang <etouzh@gmail.com>
- *
- * 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 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/>.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "hw/hw.h"
-#include "qemu/timer.h"
-
-#define TIMER_PERIOD 50 /* 50 ns period for 20 MHz timer */
-
-/* The time when TTCR changes */
-static uint64_t last_clk;
-static int is_counting;
-
-void cpu_openrisc_count_update(OpenRISCCPU *cpu)
-{
- uint64_t now;
-
- if (!is_counting) {
- return;
- }
- now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- cpu->env.ttcr += (uint32_t)((now - last_clk) / TIMER_PERIOD);
- last_clk = now;
-}
-
-void cpu_openrisc_timer_update(OpenRISCCPU *cpu)
-{
- uint32_t wait;
- uint64_t now, next;
-
- if (!is_counting) {
- return;
- }
-
- cpu_openrisc_count_update(cpu);
- now = last_clk;
-
- if ((cpu->env.ttmr & TTMR_TP) <= (cpu->env.ttcr & TTMR_TP)) {
- wait = TTMR_TP - (cpu->env.ttcr & TTMR_TP) + 1;
- wait += cpu->env.ttmr & TTMR_TP;
- } else {
- wait = (cpu->env.ttmr & TTMR_TP) - (cpu->env.ttcr & TTMR_TP);
- }
- next = now + (uint64_t)wait * TIMER_PERIOD;
- timer_mod(cpu->env.timer, next);
-}
-
-void cpu_openrisc_count_start(OpenRISCCPU *cpu)
-{
- is_counting = 1;
- cpu_openrisc_count_update(cpu);
-}
-
-void cpu_openrisc_count_stop(OpenRISCCPU *cpu)
-{
- timer_del(cpu->env.timer);
- cpu_openrisc_count_update(cpu);
- is_counting = 0;
-}
-
-static void openrisc_timer_cb(void *opaque)
-{
- OpenRISCCPU *cpu = opaque;
-
- if ((cpu->env.ttmr & TTMR_IE) &&
- timer_expired(cpu->env.timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL))) {
- CPUState *cs = CPU(cpu);
-
- cpu->env.ttmr |= TTMR_IP;
- cs->interrupt_request |= CPU_INTERRUPT_TIMER;
- }
-
- switch (cpu->env.ttmr & TTMR_M) {
- case TIMER_NONE:
- break;
- case TIMER_INTR:
- cpu->env.ttcr = 0;
- break;
- case TIMER_SHOT:
- cpu_openrisc_count_stop(cpu);
- break;
- case TIMER_CONT:
- break;
- }
-
- cpu_openrisc_timer_update(cpu);
-}
-
-void cpu_openrisc_clock_init(OpenRISCCPU *cpu)
-{
- cpu->env.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, &openrisc_timer_cb, cpu);
- cpu->env.ttmr = 0x00000000;
- cpu->env.ttcr = 0x00000000;
-}
diff --git a/qemu/hw/openrisc/openrisc_sim.c b/qemu/hw/openrisc/openrisc_sim.c
deleted file mode 100644
index 6d06d5be0..000000000
--- a/qemu/hw/openrisc/openrisc_sim.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * OpenRISC simulator for use as an IIS.
- *
- * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
- * Feng Gao <gf91597@gmail.com>
- *
- * 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 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/>.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "hw/hw.h"
-#include "hw/boards.h"
-#include "elf.h"
-#include "hw/char/serial.h"
-#include "net/net.h"
-#include "hw/loader.h"
-#include "exec/address-spaces.h"
-#include "sysemu/sysemu.h"
-#include "hw/sysbus.h"
-#include "sysemu/qtest.h"
-
-#define KERNEL_LOAD_ADDR 0x100
-
-static void main_cpu_reset(void *opaque)
-{
- OpenRISCCPU *cpu = opaque;
-
- cpu_reset(CPU(cpu));
-}
-
-static void openrisc_sim_net_init(MemoryRegion *address_space,
- hwaddr base,
- hwaddr descriptors,
- qemu_irq irq, NICInfo *nd)
-{
- DeviceState *dev;
- SysBusDevice *s;
-
- dev = qdev_create(NULL, "open_eth");
- qdev_set_nic_properties(dev, nd);
- qdev_init_nofail(dev);
-
- s = SYS_BUS_DEVICE(dev);
- sysbus_connect_irq(s, 0, irq);
- memory_region_add_subregion(address_space, base,
- sysbus_mmio_get_region(s, 0));
- memory_region_add_subregion(address_space, descriptors,
- sysbus_mmio_get_region(s, 1));
-}
-
-static void cpu_openrisc_load_kernel(ram_addr_t ram_size,
- const char *kernel_filename,
- OpenRISCCPU *cpu)
-{
- long kernel_size;
- uint64_t elf_entry;
- hwaddr entry;
-
- if (kernel_filename && !qtest_enabled()) {
- kernel_size = load_elf(kernel_filename, NULL, NULL,
- &elf_entry, NULL, NULL, 1, EM_OPENRISC,
- 1, 0);
- entry = elf_entry;
- if (kernel_size < 0) {
- kernel_size = load_uimage(kernel_filename,
- &entry, NULL, NULL, NULL, NULL);
- }
- if (kernel_size < 0) {
- kernel_size = load_image_targphys(kernel_filename,
- KERNEL_LOAD_ADDR,
- ram_size - KERNEL_LOAD_ADDR);
- entry = KERNEL_LOAD_ADDR;
- }
-
- if (kernel_size < 0) {
- fprintf(stderr, "QEMU: couldn't load the kernel '%s'\n",
- kernel_filename);
- exit(1);
- }
- cpu->env.pc = entry;
- }
-}
-
-static void openrisc_sim_init(MachineState *machine)
-{
- ram_addr_t ram_size = machine->ram_size;
- const char *cpu_model = machine->cpu_model;
- const char *kernel_filename = machine->kernel_filename;
- OpenRISCCPU *cpu = NULL;
- MemoryRegion *ram;
- int n;
-
- if (!cpu_model) {
- cpu_model = "or1200";
- }
-
- for (n = 0; n < smp_cpus; n++) {
- cpu = cpu_openrisc_init(cpu_model);
- if (cpu == NULL) {
- fprintf(stderr, "Unable to find CPU definition!\n");
- exit(1);
- }
- qemu_register_reset(main_cpu_reset, cpu);
- main_cpu_reset(cpu);
- }
-
- ram = g_malloc(sizeof(*ram));
- memory_region_init_ram(ram, NULL, "openrisc.ram", ram_size, &error_fatal);
- vmstate_register_ram_global(ram);
- memory_region_add_subregion(get_system_memory(), 0, ram);
-
- cpu_openrisc_pic_init(cpu);
- cpu_openrisc_clock_init(cpu);
-
- serial_mm_init(get_system_memory(), 0x90000000, 0, cpu->env.irq[2],
- 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
-
- if (nd_table[0].used) {
- openrisc_sim_net_init(get_system_memory(), 0x92000000,
- 0x92000400, cpu->env.irq[4], nd_table);
- }
-
- cpu_openrisc_load_kernel(ram_size, kernel_filename, cpu);
-}
-
-static void openrisc_sim_machine_init(MachineClass *mc)
-{
- mc->desc = "or32 simulation";
- mc->init = openrisc_sim_init;
- mc->max_cpus = 1;
- mc->is_default = 1;
-}
-
-DEFINE_MACHINE("or32-sim", openrisc_sim_machine_init)
diff --git a/qemu/hw/openrisc/pic_cpu.c b/qemu/hw/openrisc/pic_cpu.c
deleted file mode 100644
index 569b443f5..000000000
--- a/qemu/hw/openrisc/pic_cpu.c
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * OpenRISC Programmable Interrupt Controller support.
- *
- * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
- * Feng Gao <gf91597@gmail.com>
- *
- * 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 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/>.
- */
-
-#include "qemu/osdep.h"
-#include "hw/hw.h"
-#include "cpu.h"
-
-/* OpenRISC pic handler */
-static void openrisc_pic_cpu_handler(void *opaque, int irq, int level)
-{
- OpenRISCCPU *cpu = (OpenRISCCPU *)opaque;
- CPUState *cs = CPU(cpu);
- uint32_t irq_bit;
-
- if (irq > 31 || irq < 0) {
- return;
- }
-
- irq_bit = 1U << irq;
-
- if (level) {
- cpu->env.picsr |= irq_bit;
- } else {
- cpu->env.picsr &= ~irq_bit;
- }
-
- if (cpu->env.picsr & cpu->env.picmr) {
- cpu_interrupt(cs, CPU_INTERRUPT_HARD);
- } else {
- cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
- cpu->env.picsr = 0;
- }
-}
-
-void cpu_openrisc_pic_init(OpenRISCCPU *cpu)
-{
- int i;
- qemu_irq *qi;
- qi = qemu_allocate_irqs(openrisc_pic_cpu_handler, cpu, NR_IRQS);
-
- for (i = 0; i < NR_IRQS; i++) {
- cpu->env.irq[i] = qi[i];
- }
-}