>From 0b39a04030d5a2cea4fcd2159d365580ca155b78 Mon Sep 17 00:00:00 2001
From: John Bradley <fly...@rocketmail.com>
Date: Wed, 17 May 2017 18:57:21 +0100
Subject: [PATCH] Add BCM2835 devices to Arm hardware.
Signed-off-by: John Bradley <fly...@rocketmail.com>
---
hw/arm/bcm2835.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 114 insertions(+)
diff --git a/hw/arm/bcm2835.c b/hw/arm/bcm2835.c
new file mode 100644
index 0000000000..e5744c1620
--- /dev/null
+++ b/hw/arm/bcm2835.c
@@ -0,0 +1,114 @@
+/*
+ * Raspberry Pi emulation (c) 2012 Gregory Estrade
+ * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
+ *
+ * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
+ * Written by Andrew Baumann
+ *
+ * This code is licensed under the GNU GPLv2 and later.
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "hw/arm/bcm2835.h"
+#include "hw/arm/raspi_platform.h"
+#include "hw/sysbus.h"
+#include "exec/address-spaces.h"
+
+
+/* Peripheral base address seen by the CPU */
+#define BCM2835_PERI_BASE 0x20000000
+
+static void bcm2835_init(Object *obj)
+{
+ BCM2835State *s = BCM2835(obj);
+
+ object_initialize(&s->cpus[0], sizeof(s->cpus[0]), "arm1176-"
TYPE_ARM_CPU);
+ object_property_add_child(obj, "cpu", OBJECT(&s->cpus[0]), &error_abort);
+
+ object_initialize(&s->peripherals, sizeof(s->peripherals),
+ TYPE_BCM2835_PERIPHERALS);
+ object_property_add_child(obj, "peripherals", OBJECT(&s->peripherals),
+ &error_abort);
+ object_property_add_alias(obj, "board-rev", OBJECT(&s->peripherals),
+ "board-rev", &error_abort);
+ object_property_add_alias(obj, "vcram-size", OBJECT(&s->peripherals),
+ "vcram-size", &error_abort);
+ qdev_set_parent_bus(DEVICE(&s->peripherals), sysbus_get_default());
+}
+
+static void bcm2835_realize(DeviceState *dev, Error **errp)
+{
+ BCM2835State *s = BCM2835(dev);
+ Object *obj;
+ Error *err = NULL;
+
+ /* common peripherals from bcm2835 */
+ obj = object_property_get_link(OBJECT(dev), "ram", &err);
+ if (obj == NULL) {
+ error_setg(errp, "%s: required ram link not found: %s",
+ __func__, error_get_pretty(err));
+ return;
+ }
+
+ object_property_add_const_link(OBJECT(&s->peripherals), "ram", obj, &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ object_property_set_bool(OBJECT(&s->peripherals), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->peripherals),
+ "sd-bus", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->peripherals), 0,
+ BCM2835_PERI_BASE, 1);
+
+ object_property_set_bool(OBJECT(&s->cpus[0]), true, "realized", &err);
+ if (err) {
+ error_report_err(err);
+ exit(1);
+ }
+
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 0,
+ qdev_get_gpio_in(DEVICE(&s->cpus[0]), ARM_CPU_IRQ));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 1,
+ qdev_get_gpio_in(DEVICE(&s->cpus[0]), ARM_CPU_FIQ));
+}
+
+static Property bcm2835_props[] = {
+ DEFINE_PROP_UINT32("enabled-cpus", BCM2835State, enabled_cpus,
BCM2835_NCPUS),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void bcm2835_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->props = bcm2835_props;
+ dc->realize = bcm2835_realize;
+}
+
+static const TypeInfo bcm2835_type_info = {
+ .name = TYPE_BCM2835,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(BCM2835State),
+ .instance_init = bcm2835_init,
+ .class_init = bcm2835_class_init,
+};
+
+static void bcm2835_register_types(void)
+{
+ type_register_static(&bcm2835_type_info);
+}
+
+type_init(bcm2835_register_types)
John Bradley
Tel: 07896 839635
Skype: flypie125
125B Grove Street
Edge Hill
Liverpool L7 7AF
