--- /dev/null
+/*
+ * 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 "qapi/error.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "hw/arm/bcm2836.h"
+#include "hw/arm/raspi_platform.h"
+#include "hw/sysbus.h"
+#include "exec/address-spaces.h"
+
+/* Peripheral base address seen by the CPU */
+#define BCM2836_PERI_BASE 0x3F000000
+
+/* "QA7" (Pi2) interrupt controller and mailboxes etc. */
+#define BCM2836_CONTROL_BASE 0x40000000
+
+static void bcm2836_init(Object *obj)
+{
+ BCM2836State *s = BCM2836(obj);
+ int n;
+
+ for (n = 0; n < BCM2836_NCPUS; n++) {
+ object_initialize(&s->cpus[n], sizeof(s->cpus[n]),
+ "cortex-a15-" TYPE_ARM_CPU);
+ object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpus[n]),
+ &error_abort);
+ }
+
+ object_initialize(&s->control, sizeof(s->control), TYPE_BCM2836_CONTROL);
+ object_property_add_child(obj, "control", OBJECT(&s->control), NULL);
+ qdev_set_parent_bus(DEVICE(&s->control), sysbus_get_default());
+
+ 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 bcm2836_realize(DeviceState *dev, Error **errp)
+{
+ BCM2836State *s = BCM2836(dev);
+ Object *obj;
+ Error *err = NULL;
+ int n;
+
+ /* 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,
+ BCM2836_PERI_BASE, 1);
+
+ /* bcm2836 interrupt controller (and mailboxes, etc.) */
+ object_property_set_bool(OBJECT(&s->control), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->control), 0, BCM2836_CONTROL_BASE);
+
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 0,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "gpu-irq", 0));
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 1,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "gpu-fiq", 0));
+
+ for (n = 0; n < BCM2836_NCPUS; n++) {
+ /* Mirror bcm2836, which has clusterid set to 0xf
+ * TODO: this should be converted to a property of ARM_CPU
+ */
+ s->cpus[n].mp_affinity = 0xF00 | n;
+
+ /* set periphbase/CBAR value for CPU-local registers */
+ object_property_set_int(OBJECT(&s->cpus[n]),
+ BCM2836_PERI_BASE + MCORE_OFFSET,
+ "reset-cbar", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ /* start powered off if not enabled */
+ object_property_set_bool(OBJECT(&s->cpus[n]), n >= s->enabled_cpus,
+ "start-powered-off", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ object_property_set_bool(OBJECT(&s->cpus[n]), true, "realized", &err);
+ if (err) {
+ error_propagate(errp, err);
+ return;
+ }
+
+ /* Connect irq/fiq outputs from the interrupt controller. */
+ qdev_connect_gpio_out_named(DEVICE(&s->control), "irq", n,
+ qdev_get_gpio_in(DEVICE(&s->cpus[n]), ARM_CPU_IRQ));
+ qdev_connect_gpio_out_named(DEVICE(&s->control), "fiq", n,
+ qdev_get_gpio_in(DEVICE(&s->cpus[n]), ARM_CPU_FIQ));
+
+ /* Connect timers from the CPU to the interrupt controller */
+ qdev_connect_gpio_out(DEVICE(&s->cpus[n]), GTIMER_PHYS,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "cntpnsirq", n));
+ qdev_connect_gpio_out(DEVICE(&s->cpus[n]), GTIMER_VIRT,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "cntvirq", n));
+ qdev_connect_gpio_out(DEVICE(&s->cpus[n]), GTIMER_HYP,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "cnthpirq", n));
+ qdev_connect_gpio_out(DEVICE(&s->cpus[n]), GTIMER_SEC,
+ qdev_get_gpio_in_named(DEVICE(&s->control), "cntpsirq", n));
+ }
+}
+
+static Property bcm2836_props[] = {
+ DEFINE_PROP_UINT32("enabled-cpus", BCM2836State, enabled_cpus, BCM2836_NCPUS),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void bcm2836_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->props = bcm2836_props;
+ dc->realize = bcm2836_realize;
+
+ /*
+ * Reason: creates an ARM CPU, thus use after free(), see
+ * arm_cpu_class_init()
+ */
+ dc->cannot_destroy_with_object_finalize_yet = true;
+}
+
+static const TypeInfo bcm2836_type_info = {
+ .name = TYPE_BCM2836,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(BCM2836State),
+ .instance_init = bcm2836_init,
+ .class_init = bcm2836_class_init,
+};
+
+static void bcm2836_register_types(void)
+{
+ type_register_static(&bcm2836_type_info);
+}
+
+type_init(bcm2836_register_types)
Code Review / kvmfornfv.git / blobdiff