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[Qemu-devel] [PATCH v3 1/4] target-openrisc: New machine with IDE suppor
From: |
Valentin Manea |
Subject: |
[Qemu-devel] [PATCH v3 1/4] target-openrisc: New machine with IDE support |
Date: |
Sun, 05 Oct 2014 14:03:15 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 |
Create new OpenRISC machine(asim) with default IDE support. It will
incude more peripherals in order to run a fully fledged Linux computer.
Signed-off-by: Valentin Manea <address@hidden>
---
default-configs/or32-softmmu.mak | 3 +
hw/openrisc/Makefile.objs | 1 +
hw/openrisc/openrisc_asim.c | 202 +++++++++++++++++++++++++++++++++++++++
3 files changed, 206 insertions(+)
create mode 100644 hw/openrisc/openrisc_asim.c
diff --git a/default-configs/or32-softmmu.mak b/default-configs/or32-softmmu.mak
index cce4746..c3ff078 100644
--- a/default-configs/or32-softmmu.mak
+++ b/default-configs/or32-softmmu.mak
@@ -2,3 +2,6 @@
CONFIG_SERIAL=y
CONFIG_OPENCORES_ETH=y
+CONFIG_IDE_CORE=y
+CONFIG_IDE_QDEV=y
+CONFIG_IDE_MMIO=y
diff --git a/hw/openrisc/Makefile.objs b/hw/openrisc/Makefile.objs
index 61246b1..f266f5d 100644
--- a/hw/openrisc/Makefile.objs
+++ b/hw/openrisc/Makefile.objs
@@ -1,2 +1,3 @@
obj-y = pic_cpu.o cputimer.o
obj-y += openrisc_sim.o
+obj-y += openrisc_asim.o
diff --git a/hw/openrisc/openrisc_asim.c b/hw/openrisc/openrisc_asim.c
new file mode 100644
index 0000000..80aa5ed
--- /dev/null
+++ b/hw/openrisc/openrisc_asim.c
@@ -0,0 +1,202 @@
+/*
+ * OpenRISC simulator with more peripherals
+ *
+ * Copyright (c) 2011-2014 Jia Liu <address@hidden>
+ * Feng Gao <address@hidden>
+ * Valentin Manea <address@hidden>
+ *
+ * This OpenRISC machine supports more hardware - same configuration as the
+ * jor1k(http://s-macke.github.io/jor1k). Currently the default Linux branch
+ * does not have all the support for this machine so the jor1k Linux kernel is
+ * needed for more advanced usecases: X support, compiling etc. You can
download
+ * a precompiled image here http://mrs.ro/dl/or1k/vmlinux or compile it using
+ * the instructions at https://github.com/s-macke/jor1k/wiki
+ *
+ * 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 "hw/hw.h"
+#include "hw/boards.h"
+#include "elf.h"
+#include "hw/char/serial.h"
+#include "net/net.h"
+#include "hw/loader.h"
+#include "hw/ide.h"
+#include "exec/address-spaces.h"
+#include "sysemu/sysemu.h"
+#include "hw/sysbus.h"
+#include "sysemu/blockdev.h"
+#include "sysemu/qtest.h"
+
+#define KERNEL_LOAD_ADDR 0x100
+
+enum {
+ OR_UART0,
+ OR_IDE,
+ OR_OPENETH
+};
+
+static hwaddr mem_map[] = {
+ [OR_UART0] = 0x90000000,
+ [OR_IDE] = 0x9e000000,
+ [OR_OPENETH] = 0x92000000,
+};
+
+
+static void main_cpu_reset(void *opaque)
+{
+ OpenRISCCPU *cpu = opaque;
+
+ cpu_reset(CPU(cpu));
+}
+
+static void openrisc_sim_ide_init(MemoryRegion *address_space,
+ hwaddr base,
+ hwaddr descriptors,
+ qemu_irq irq)
+{
+ DeviceState *dev;
+ SysBusDevice *busdev;
+ DriveInfo *dinfo;
+
+
+ dinfo = drive_get(IF_IDE, 0, 0);
+ if (!dinfo) {
+ return;
+ }
+ dev = qdev_create(NULL, "mmio-ide");
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_connect_irq(busdev, 0, irq);
+ qdev_prop_set_uint32(dev, "shift", 2);
+ qdev_init_nofail(dev);
+ memory_region_add_subregion(address_space, base,
+ sysbus_mmio_get_region(busdev, 0));
+ memory_region_add_subregion(address_space, descriptors,
+ sysbus_mmio_get_region(busdev, 1));
+ mmio_ide_init_drives(dev, dinfo, NULL);
+}
+
+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, ELF_MACHINE, 1);
+ entry = elf_entry;
+ if (kernel_size < 0) {
+ kernel_size = load_uimage(kernel_filename,
+ &entry, 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_abort);
+ 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(), mem_map[OR_UART0], 0, cpu->env.irq[2],
+ 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
+
+ if (nd_table[0].used) {
+ openrisc_sim_net_init(get_system_memory(), mem_map[OR_OPENETH],
+ mem_map[OR_OPENETH] + 0x400, cpu->env.irq[4],
+ nd_table);
+ }
+
+ /* Platform ATA device */
+ openrisc_sim_ide_init(get_system_memory(), mem_map[OR_IDE],
+ mem_map[OR_IDE] + 0x100, cpu->env.irq[15]);
+
+
+ cpu_openrisc_load_kernel(ram_size, kernel_filename, cpu);
+}
+
+static QEMUMachine openrisc_sim_machine = {
+ .name = "asim",
+ .desc = "or32 simulation",
+ .init = openrisc_sim_init,
+ .max_cpus = 1,
+};
+
+static void openrisc_sim_machine_init(void)
+{
+ qemu_register_machine(&openrisc_sim_machine);
+}
+
+machine_init(openrisc_sim_machine_init);
--
1.9.1