hw/arm: Introduce BCM2838 SoC

Signed-off-by: Sergey Kambalin <sergey.kambalin@auriga.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20240226000259.2752893-5-sergey.kambalin@auriga.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/bcm2838.c

@@ -0,0 +1,98 @@
+/*
+ * BCM2838 SoC emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "hw/arm/raspi_platform.h"
+#include "hw/sysbus.h"
+#include "hw/arm/bcm2838.h"
+#include "trace.h"
+
+#define VIRTUAL_PMU_IRQ 7
+
+static void bcm2838_init(Object *obj)
+{
+    BCM2838State *s = BCM2838(obj);
+
+    object_initialize_child(obj, "peripherals", &s->peripherals,
+                            TYPE_BCM2838_PERIPHERALS);
+    object_property_add_alias(obj, "board-rev", OBJECT(&s->peripherals),
+                              "board-rev");
+    object_property_add_alias(obj, "vcram-size", OBJECT(&s->peripherals),
+                              "vcram-size");
+    object_property_add_alias(obj, "command-line", OBJECT(&s->peripherals),
+                              "command-line");
+}
+
+static void bcm2838_realize(DeviceState *dev, Error **errp)
+{
+    int n;
+    BCM2838State *s = BCM2838(dev);
+    BCM283XBaseState *s_base = BCM283X_BASE(dev);
+    BCM283XBaseClass *bc_base = BCM283X_BASE_GET_CLASS(dev);
+    BCM2838PeripheralState *ps = BCM2838_PERIPHERALS(&s->peripherals);
+    BCMSocPeripheralBaseState *ps_base =
+        BCM_SOC_PERIPHERALS_BASE(&s->peripherals);
+
+    if (!bcm283x_common_realize(dev, ps_base, errp)) {
+        return;
+    }
+    sysbus_mmio_map_overlap(SYS_BUS_DEVICE(ps), 1, BCM2838_PERI_LOW_BASE, 1);
+
+    /* bcm2836 interrupt controller (and mailboxes, etc.) */
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s_base->control), errp)) {
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s_base->control), 0, bc_base->ctrl_base);
+
+    /* Create cores */
+    for (n = 0; n < bc_base->core_count; n++) {
+
+        object_property_set_int(OBJECT(&s_base->cpu[n].core), "mp-affinity",
+                                (bc_base->clusterid << 8) | n, &error_abort);
+
+        /* start powered off if not enabled */
+        object_property_set_bool(OBJECT(&s_base->cpu[n].core),
+                                 "start-powered-off",
+                                 n >= s_base->enabled_cpus, &error_abort);
+
+        if (!qdev_realize(DEVICE(&s_base->cpu[n].core), NULL, errp)) {
+            return;
+        }
+    }
+}
+
+static void bcm2838_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    BCM283XBaseClass *bc_base = BCM283X_BASE_CLASS(oc);
+
+    bc_base->cpu_type = ARM_CPU_TYPE_NAME("cortex-a72");
+    bc_base->core_count = BCM283X_NCPUS;
+    bc_base->peri_base = 0xfe000000;
+    bc_base->ctrl_base = 0xff800000;
+    bc_base->clusterid = 0x0;
+    dc->realize = bcm2838_realize;
+}
+
+static const TypeInfo bcm2838_type = {
+    .name           = TYPE_BCM2838,
+    .parent         = TYPE_BCM283X_BASE,
+    .instance_size  = sizeof(BCM2838State),
+    .instance_init  = bcm2838_init,
+    .class_size     = sizeof(BCM283XBaseClass),
+    .class_init     = bcm2838_class_init,
+};
+
+static void bcm2838_register_types(void)
+{
+    type_register_static(&bcm2838_type);
+}
+
+type_init(bcm2838_register_types);

hw/arm/bcm2838_peripherals.c

@@ -0,0 +1,72 @@
+/*
+ * BCM2838 peripherals emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "hw/arm/raspi_platform.h"
+#include "hw/arm/bcm2838_peripherals.h"
+
+/* Lower peripheral base address on the VC (GPU) system bus */
+#define BCM2838_VC_PERI_LOW_BASE 0x7c000000
+
+static void bcm2838_peripherals_init(Object *obj)
+{
+    BCM2838PeripheralState *s = BCM2838_PERIPHERALS(obj);
+    BCM2838PeripheralClass *bc = BCM2838_PERIPHERALS_GET_CLASS(obj);
+
+    /* Lower memory region for peripheral devices (exported to the Soc) */
+    memory_region_init(&s->peri_low_mr, obj, "bcm2838-peripherals",
+                       bc->peri_low_size);
+    sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->peri_low_mr);
+
+}
+
+static void bcm2838_peripherals_realize(DeviceState *dev, Error **errp)
+{
+    BCM2838PeripheralState *s = BCM2838_PERIPHERALS(dev);
+    BCMSocPeripheralBaseState *s_base = BCM_SOC_PERIPHERALS_BASE(dev);
+
+    bcm_soc_peripherals_common_realize(dev, errp);
+
+    /* Map lower peripherals into the GPU address space */
+    memory_region_init_alias(&s->peri_low_mr_alias, OBJECT(s),
+                             "bcm2838-peripherals", &s->peri_low_mr, 0,
+                             memory_region_size(&s->peri_low_mr));
+    memory_region_add_subregion_overlap(&s_base->gpu_bus_mr,
+                                        BCM2838_VC_PERI_LOW_BASE,
+                                        &s->peri_low_mr_alias, 1);
+
+}
+
+static void bcm2838_peripherals_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    BCM2838PeripheralClass *bc = BCM2838_PERIPHERALS_CLASS(oc);
+    BCMSocPeripheralBaseClass *bc_base = BCM_SOC_PERIPHERALS_BASE_CLASS(oc);
+
+    bc->peri_low_size = 0x2000000;
+    bc_base->peri_size = 0x1800000;
+    dc->realize = bcm2838_peripherals_realize;
+}
+
+static const TypeInfo bcm2838_peripherals_type_info = {
+    .name = TYPE_BCM2838_PERIPHERALS,
+    .parent = TYPE_BCM_SOC_PERIPHERALS_BASE,
+    .instance_size = sizeof(BCM2838PeripheralState),
+    .instance_init = bcm2838_peripherals_init,
+    .class_size = sizeof(BCM2838PeripheralClass),
+    .class_init = bcm2838_peripherals_class_init,
+};
+
+static void bcm2838_peripherals_register_types(void)
+{
+    type_register_static(&bcm2838_peripherals_type_info);
+}
+
+type_init(bcm2838_peripherals_register_types)

hw/arm/meson.build

@@ -30,6 +30,7 @@ arm_ss.add(when: 'CONFIG_ALLWINNER_A10', if_true: files('allwinner-a10.c', 'cubi
 arm_ss.add(when: 'CONFIG_ALLWINNER_H3', if_true: files('allwinner-h3.c', 'orangepi.c'))
 arm_ss.add(when: 'CONFIG_ALLWINNER_R40', if_true: files('allwinner-r40.c', 'bananapi_m2u.c'))
 arm_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2836.c', 'raspi.c'))
+arm_ss.add(when: ['CONFIG_RASPI', 'TARGET_AARCH64'], if_true: files('bcm2838.c'))
 arm_ss.add(when: 'CONFIG_STM32F100_SOC', if_true: files('stm32f100_soc.c'))
 arm_ss.add(when: 'CONFIG_STM32F205_SOC', if_true: files('stm32f205_soc.c'))
 arm_ss.add(when: 'CONFIG_STM32F405_SOC', if_true: files('stm32f405_soc.c'))
@@ -67,6 +68,7 @@ system_ss.add(when: 'CONFIG_GUMSTIX', if_true: files('gumstix.c'))
 system_ss.add(when: 'CONFIG_NETDUINO2', if_true: files('netduino2.c'))
 system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap2.c'))
 system_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_peripherals.c'))
+system_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2838_peripherals.c'))
 system_ss.add(when: 'CONFIG_SPITZ', if_true: files('spitz.c'))
 system_ss.add(when: 'CONFIG_STRONGARM', if_true: files('strongarm.c'))
 system_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))

include/hw/arm/bcm2838.h

@@ -0,0 +1,29 @@
+/*
+ * BCM2838 SoC emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef BCM2838_H
+#define BCM2838_H
+
+#include "hw/arm/bcm2836.h"
+#include "hw/arm/bcm2838_peripherals.h"
+
+#define BCM2838_PERI_LOW_BASE 0xfc000000
+#define BCM2838_GIC_BASE 0x40000
+
+#define TYPE_BCM2838 "bcm2838"
+
+OBJECT_DECLARE_TYPE(BCM2838State, BCM2838Class, BCM2838)
+
+struct BCM2838State {
+    /*< private >*/
+    BCM283XBaseState parent_obj;
+    /*< public >*/
+    BCM2838PeripheralState peripherals;
+};
+
+#endif /* BCM2838_H */

include/hw/arm/bcm2838_peripherals.h

@@ -0,0 +1,36 @@
+/*
+ * BCM2838 peripherals emulation
+ *
+ * Copyright (C) 2022 Ovchinnikov Vitalii <vitalii.ovchinnikov@auriga.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef BCM2838_PERIPHERALS_H
+#define BCM2838_PERIPHERALS_H
+
+#include "hw/arm/bcm2835_peripherals.h"
+
+
+#define TYPE_BCM2838_PERIPHERALS "bcm2838-peripherals"
+OBJECT_DECLARE_TYPE(BCM2838PeripheralState, BCM2838PeripheralClass,
+                    BCM2838_PERIPHERALS)
+
+struct BCM2838PeripheralState {
+    /*< private >*/
+    BCMSocPeripheralBaseState parent_obj;
+
+    /*< public >*/
+    MemoryRegion peri_low_mr;
+    MemoryRegion peri_low_mr_alias;
+    MemoryRegion mphi_mr_alias;
+};
+
+struct BCM2838PeripheralClass {
+    /*< private >*/
+    BCMSocPeripheralBaseClass parent_class;
+    /*< public >*/
+    uint64_t peri_low_size; /* Peripheral lower range size */
+};
+
+#endif /* BCM2838_PERIPHERALS_H */