[RFC,v1,29/29] target-arc: sample board

Commit Message

Michael Rolnik Sept. 8, 2016, 10:32 p.m. UTC

Signed-off-by: Michael Rolnik <[e-mail]>
---
 MAINTAINERS          |  1 +
 hw/arc/Makefile.objs | 21 ++++++++++++++
 hw/arc/sample.c      | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 hw/arc/Makefile.objs
 create mode 100644 hw/arc/sample.c

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 0500cf5..6d7ce0b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -103,6 +103,7 @@  ARC
 M: Michael Rolnik <[e-mail]>
 S: Maintained
 F: target-arc/
+F: hw/arc
 
 ARM
 M: Peter Maydell <[e-mail]>
diff --git a/hw/arc/Makefile.objs b/hw/arc/Makefile.objs
new file mode 100644
index 0000000..5ac5cb7
--- /dev/null
+++ b/hw/arc/Makefile.objs
@@ -0,0 +1,21 @@ 
+#
+#  QEMU ARC CPU
+#
+#  Copyright (c) 2016 Michael Rolnik
+#
+#  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/lgpl-2.1.html>
+#
+
+obj-y   += sample.o
diff --git a/hw/arc/sample.c b/hw/arc/sample.c
new file mode 100644
index 0000000..e8620af
--- /dev/null
+++ b/hw/arc/sample.c
@@ -0,0 +1,80 @@ 
+/*
+ * QEMU ARC CPU
+ *
+ * Copyright (c) 2016 Michael Rolnik
+ *
+ * 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/lgpl-2.1.html>
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "hw/hw.h"
+#include "sysemu/sysemu.h"
+#include "sysemu/qtest.h"
+#include "ui/console.h"
+#include "hw/boards.h"
+#include "hw/devices.h"
+#include "hw/loader.h"
+#include "qemu/error-report.h"
+#include "exec/address-spaces.h"
+#include "include/hw/sysbus.h"
+
+#define SIZE_RAM    0x00020000
+
+static void sample_init(MachineState *machine)
+{
+    MemoryRegion *mem;
+    MemoryRegion *ram;
+
+    ARCCPU *cpu_arc ATTRIBUTE_UNUSED;
+
+    mem = g_new(MemoryRegion, 1);
+    ram = g_new(MemoryRegion, 1);
+
+    cpu_arc = cpu_arc_init("any");
+
+    memory_region_allocate_system_memory(mem, NULL, "arc.mem", SIZE_RAM);
+
+    memory_region_init_ram(ram, NULL, "ram", SIZE_RAM, &error_fatal);
+    memory_region_add_subregion(get_system_memory(), PHYS_BASE_RAM, ram);
+    vmstate_register_ram_global(ram);
+
+    char const *firmware = NULL;
+    char const *filename;
+
+    if (machine->firmware) {
+        firmware = machine->firmware;
+    }
+
+    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware);
+    if (!filename) {
+        error_report("Could not find flash image file '%s'", firmware);
+        exit(1);
+    }
+
+    load_image_targphys(filename, PHYS_BASE_RAM + 0x100, SIZE_RAM);
+}
+
+static void sample_machine_init(MachineClass *mc)
+{
+    mc->desc = "ARC sample/example board";
+    mc->init = sample_init;
+    mc->is_default = 1;
+}
+
+DEFINE_MACHINE("sample", sample_machine_init)
+