This patch adds a new model for Axiado SCM3003 EVK with Axiado SoC AX3000

Signed-off-by: Kuan-Jui Chiu <kchiu@axiado.com>
---
 hw/arm/axiado-boards.c         | 78 ++++++++++++++++++++++++++++++++++
 hw/arm/axiado-evk.c            | 38 +++++++++++++++++
 hw/arm/meson.build             |  4 +-
 include/hw/arm/axiado-boards.h | 41 ++++++++++++++++++
 4 files changed, 160 insertions(+), 1 deletion(-)
 create mode 100644 hw/arm/axiado-boards.c
 create mode 100644 hw/arm/axiado-evk.c
 create mode 100644 include/hw/arm/axiado-boards.h

diff --git a/hw/arm/axiado-boards.c b/hw/arm/axiado-boards.c
new file mode 100644
index 0000000000..802d2e5665
--- /dev/null
+++ b/hw/arm/axiado-boards.c
@@ -0,0 +1,78 @@
+/*
+ * Axiado Boards
+ *
+ * Author: Kuan-Jui Chiu <kchiu@axiado.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/arm/axiado-boards.h"
+#include "hw/arm/machines-qom.h"
+#include "qemu/error-report.h"
+#include "qom/object.h"
+
+static void axiado_machine_init(MachineState *machine)
+{
+    AxiadoMachineState *ams = AXIADO_MACHINE(machine);
+    AxiadoMachineClass *amc = AXIADO_MACHINE_GET_CLASS(machine);
+
+    if (machine->ram_size > AX3000_RAM_SIZE_MAX) {
+        error_report("RAM size " RAM_ADDR_FMT " above max supported (%08" PRIx64 ")",
+                     machine->ram_size, AX3000_RAM_SIZE_MAX);
+        exit(1);
+    }
+
+    ams->soc = AXIADO_SOC(object_new(amc->soc_type));
+    object_property_add_child(OBJECT(machine), "soc", OBJECT(ams->soc));
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(ams->soc), &error_fatal);
+
+    DeviceState *card = qdev_new(TYPE_SD_CARD);
+    DriveInfo *di = drive_get(IF_SD, 0, 0);
+    qdev_prop_set_drive_err(card, "drive", blk_by_legacy_dinfo(di), &error_fatal);
+    qdev_realize_and_unref(card, qdev_get_child_bus(DEVICE(&ams->soc->sdhci0),
+                           "sd-bus"), &error_fatal);
+}
+
+static const char *axiado_machine_get_default_cpu_type(const MachineState *ms)
+{
+    return ARM_CPU_TYPE_NAME("cortex-a53");
+}
+
+static void axiado_machine_class_init(ObjectClass *oc, const void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    AxiadoMachineClass *amc = AXIADO_MACHINE_CLASS(oc);
+
+    mc->init = axiado_machine_init;
+    mc->default_cpus = AX3000_NUM_CPUS;
+    mc->min_cpus = AX3000_NUM_CPUS;
+    mc->max_cpus = AX3000_NUM_CPUS;
+    mc->get_default_cpu_type = axiado_machine_get_default_cpu_type;
+    amc->soc_type = TYPE_AXIADO_SOC;
+}
+
+static const TypeInfo axiado_machine_types[] = {
+    {
+        .name          = TYPE_AXIADO_MACHINE,
+        .parent        = TYPE_MACHINE,
+        .instance_size = sizeof(AxiadoMachineState),
+        .class_size    = sizeof(AxiadoMachineClass),
+        .class_init    = axiado_machine_class_init,
+        .interfaces    = aarch64_machine_interfaces,
+        .abstract      = true,
+    }
+};
+
+DEFINE_TYPES(axiado_machine_types)
diff --git a/hw/arm/axiado-evk.c b/hw/arm/axiado-evk.c
new file mode 100644
index 0000000000..ddfb68d5c0
--- /dev/null
+++ b/hw/arm/axiado-evk.c
@@ -0,0 +1,38 @@
+/*
+ * Axiado Evaluation Kit Emulation
+ *
+ * Author: Kuan-Jui Chiu <kchiu@axiado.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/arm/axiado-boards.h"
+
+static void axiado_scm3003_class_init(ObjectClass *oc, const void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->desc = "Axiado SCM3003 EVK Board";
+}
+
+static const TypeInfo axiado_evk_types[] = {
+    {
+        .name          = MACHINE_TYPE_NAME("axiado-scm3003"),
+        .parent        = TYPE_AXIADO_MACHINE,
+        .class_init    = axiado_scm3003_class_init,
+    }
+};
+
+DEFINE_TYPES(axiado_evk_types)
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
index c3c96c0a70..993a95d33a 100644
--- a/hw/arm/meson.build
+++ b/hw/arm/meson.build
@@ -106,7 +106,9 @@ arm_common_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))
 arm_common_ss.add(when: 'CONFIG_VERSATILE', if_true: files('versatilepb.c'))
 arm_common_ss.add(when: 'CONFIG_VEXPRESS', if_true: files('vexpress.c'))
 arm_common_ss.add(when: ['CONFIG_AXIADO_SOC', 'TARGET_AARCH64'], if_true: files(
-  'axiado-soc.c'))
+  'axiado-soc.c',
+  'axiado-boards.c',
+  'axiado-evk.c'))
 
 arm_common_ss.add(files('boot.c'))
 
diff --git a/include/hw/arm/axiado-boards.h b/include/hw/arm/axiado-boards.h
new file mode 100644
index 0000000000..f17d513572
--- /dev/null
+++ b/include/hw/arm/axiado-boards.h
@@ -0,0 +1,41 @@
+/*
+ * Axiado Boards
+ *
+ * Author: Kuan-Jui Chiu <kchiu@axiado.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 or
+ * (at your option) version 3 of the License.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef AXIADO_BOARD_H
+#define AXIADO_BOARD_H
+
+#include "hw/core/boards.h"
+#include "hw/arm/axiado-soc.h"
+
+#define TYPE_AXIADO_MACHINE       MACHINE_TYPE_NAME("axiado")
+OBJECT_DECLARE_TYPE(AxiadoMachineState, AxiadoMachineClass, AXIADO_MACHINE)
+
+typedef struct AxiadoMachineState {
+    MachineState parent;
+
+    AxiadoSoCState *soc;
+} AxiadoMachineState;
+
+typedef struct AxiadoMachineClass {
+    MachineClass parent;
+
+    const char *soc_type;
+} AxiadoMachineClass;
+
+#endif
-- 
2.34.1

On Fri, 6 Mar 2026 at 12:16, Kuan-Jui Chiu <kchiu@axiado.com> wrote:
>
> This patch adds a new model for Axiado SCM3003 EVK with Axiado SoC AX3000
>
> Signed-off-by: Kuan-Jui Chiu <kchiu@axiado.com>
> ---
>  hw/arm/axiado-boards.c         | 78 ++++++++++++++++++++++++++++++++++
>  hw/arm/axiado-evk.c            | 38 +++++++++++++++++
>  hw/arm/meson.build             |  4 +-
>  include/hw/arm/axiado-boards.h | 41 ++++++++++++++++++
>  4 files changed, 160 insertions(+), 1 deletion(-)
>  create mode 100644 hw/arm/axiado-boards.c
>  create mode 100644 hw/arm/axiado-evk.c
>  create mode 100644 include/hw/arm/axiado-boards.h
>

> +static const TypeInfo axiado_machine_types[] = {
> +    {
> +        .name          = TYPE_AXIADO_MACHINE,
> +        .parent        = TYPE_MACHINE,
> +        .instance_size = sizeof(AxiadoMachineState),
> +        .class_size    = sizeof(AxiadoMachineClass),
> +        .class_init    = axiado_machine_class_init,
> +        .interfaces    = aarch64_machine_interfaces,
> +        .abstract      = true,
> +    }
> +};

Are we really going to have lots of Axiado machines such
that we need all this machinery with an abstract base class?
The simple thing is to define one machine that directly
instantiates the SoC, etc.

> +DEFINE_TYPES(axiado_evk_types)
> diff --git a/hw/arm/meson.build b/hw/arm/meson.build
> index c3c96c0a70..993a95d33a 100644
> --- a/hw/arm/meson.build
> +++ b/hw/arm/meson.build
> @@ -106,7 +106,9 @@ arm_common_ss.add(when: 'CONFIG_SX1', if_true: files('omap_sx1.c'))
>  arm_common_ss.add(when: 'CONFIG_VERSATILE', if_true: files('versatilepb.c'))
>  arm_common_ss.add(when: 'CONFIG_VEXPRESS', if_true: files('vexpress.c'))
>  arm_common_ss.add(when: ['CONFIG_AXIADO_SOC', 'TARGET_AARCH64'], if_true: files(
> -  'axiado-soc.c'))
> +  'axiado-soc.c',
> +  'axiado-boards.c',
> +  'axiado-evk.c'))

Don't hook everything under a single KConfig symbol like this.
You should generally speaking have separate Kconfig symbols for:
 - each separate devices that is part of the SoC
 - the SoC itself
 - the board

and the Kconfig stanza for the board says it needs the SoC,
the SoC says it needs all the devices, and so on. The way
we do the various imx6 boards is an example of this.

thanks
-- PMM