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[Qemu-devel] [PATCH v13 3/9] target-avr: adding a sample AVR board
From: |
Michael Rolnik |
Subject: |
[Qemu-devel] [PATCH v13 3/9] target-avr: adding a sample AVR board |
Date: |
Tue, 26 Jul 2016 06:50:08 +0300 |
Signed-off-by: Michael Rolnik <address@hidden>
---
MAINTAINERS | 6 +++
hw/avr/Makefile.objs | 21 +++++++++
hw/avr/sample.c | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 144 insertions(+)
create mode 100644 hw/avr/Makefile.objs
create mode 100644 hw/avr/sample.c
diff --git a/MAINTAINERS b/MAINTAINERS
index d1439a8..1435040 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -110,6 +110,12 @@ F: disas/arm.c
F: disas/arm-a64.cc
F: disas/libvixl/
+AVR
+M: Michael Rolnik <address@hidden>
+S: Maintained
+F: target-avr/
+F: hw/avr/
+
CRIS
M: Edgar E. Iglesias <address@hidden>
S: Maintained
diff --git a/hw/avr/Makefile.objs b/hw/avr/Makefile.objs
new file mode 100644
index 0000000..8f537c9
--- /dev/null
+++ b/hw/avr/Makefile.objs
@@ -0,0 +1,21 @@
+#
+# QEMU AVR 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/avr/sample.c b/hw/avr/sample.c
new file mode 100644
index 0000000..2c1cd84
--- /dev/null
+++ b/hw/avr/sample.c
@@ -0,0 +1,117 @@
+/*
+ * QEMU AVR 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>
+ */
+
+/*
+ * NOTE:
+ * This is not a real AVR board !!! This is an example !!!
+ *
+ * This example can be used to build a real AVR board.
+ *
+ * This example board loads provided binary file into flash memory and
+ * executes it from 0x00000000 address in the code memory space.
+ *
+ * This example does not implement/install any AVR specific on board
+ * devices except SampleIO device which is an example as well.
+ *
+ * Currently used for AVR CPU validation
+ *
+ */
+
+#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 VIRT_BASE_FLASH 0x00000000
+#define VIRT_BASE_ISRAM 0x00000100
+#define VIRT_BASE_EXMEM 0x00001100
+#define VIRT_BASE_EEPROM 0x00000000
+
+#define SIZE_FLASH 0x00020000
+#define SIZE_ISRAM 0x00001000
+#define SIZE_EXMEM 0x00010000
+#define SIZE_EEPROM 0x00001000
+#define SIZE_IOREG SIZE_REGS
+
+#define PHYS_BASE_FLASH (PHYS_BASE_CODE)
+
+#define PHYS_BASE_ISRAM (PHYS_BASE_DATA)
+#define PHYS_BASE_EXMEM (PHYS_BASE_ISRAM + SIZE_ISRAM)
+#define PHYS_BASE_EEPROM (PHYS_BASE_EXMEM + SIZE_EXMEM)
+
+#define PHYS_BASE_IOREG (PHYS_BASE_REGS + 0x20)
+
+static void sample_init(MachineState *machine)
+{
+ MemoryRegion *address_space_mem = get_system_memory();
+
+ MemoryRegion *ram;
+ MemoryRegion *flash;
+ unsigned ram_size = SIZE_ISRAM + SIZE_EXMEM;
+
+ AVRCPU *cpu_avr ATTRIBUTE_UNUSED;
+
+ ram = g_new(MemoryRegion, 1);
+ flash = g_new(MemoryRegion, 1);
+
+ cpu_avr = cpu_avr_init("avr5");
+
+ memory_region_allocate_system_memory(ram, NULL, "avr.ram", ram_size);
+ memory_region_add_subregion(address_space_mem, PHYS_BASE_ISRAM, ram);
+
+ memory_region_init_rom(flash, NULL, "avr.flash", SIZE_FLASH, &error_fatal);
+ memory_region_add_subregion(address_space_mem, PHYS_BASE_FLASH, flash);
+ vmstate_register_ram_global(flash);
+
+ const char *firmware = NULL;
+ const char *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_FLASH, SIZE_FLASH);
+}
+
+static void sample_machine_init(MachineClass *mc)
+{
+ mc->desc = "AVR sample/example board";
+ mc->init = sample_init;
+ mc->is_default = 1;
+}
+
+DEFINE_MACHINE("sample", sample_machine_init)
+
--
2.4.9 (Apple Git-60)
- [Qemu-devel] [PATCH v13 0/9] 8bit AVR cores, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 2/9] target-avr: adding AVR CPU features/flavors, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 5/9] target-avr: adding AVR interrupt handling, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 1/9] target-avr: AVR cores support is added., Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 6/9] target-avr: adding helpers for IN, OUT, SLEEP, WBR & unsupported instructions, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 3/9] target-avr: adding a sample AVR board,
Michael Rolnik <=
- [Qemu-devel] [PATCH v13 4/9] target-avr: adding instructions encodings, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 8/9] target-avr: instruction decoder generator, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 7/9] target-avr: adding instruction translation, Michael Rolnik, 2016/07/25
- [Qemu-devel] [PATCH v13 9/9] target-avr: adding instruction decoder, Michael Rolnik, 2016/07/25