hw/riscv/opentitan: Explicit machine type definition

Expand the DEFINE_MACHINE() macro, converting the class_init()
handler.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230520054510.68822-5-philmd@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/riscv/opentitan.c

@@ -108,8 +108,10 @@ static void opentitan_machine_init(MachineState *machine)
     }
 }
 
-static void opentitan_machine_class_init(MachineClass *mc)
+static void opentitan_machine_class_init(ObjectClass *oc, void *data)
 {
+    MachineClass *mc = MACHINE_CLASS(oc);
+
     mc->desc = "RISC-V Board compatible with OpenTitan";
     mc->init = opentitan_machine_init;
     mc->max_cpus = 1;
@@ -118,8 +120,6 @@ static void opentitan_machine_class_init(MachineClass *mc)
     mc->default_ram_size = ibex_memmap[IBEX_DEV_RAM].size;
 }
 
-DEFINE_MACHINE(TYPE_OPENTITAN_MACHINE, opentitan_machine_class_init)
-
 static void lowrisc_ibex_soc_init(Object *obj)
 {
     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(obj);
@@ -327,6 +327,10 @@ static const TypeInfo open_titan_types[] = {
         .instance_size  = sizeof(LowRISCIbexSoCState),
         .instance_init  = lowrisc_ibex_soc_init,
         .class_init     = lowrisc_ibex_soc_class_init,
+    }, {
+        .name           = TYPE_OPENTITAN_MACHINE,
+        .parent         = TYPE_MACHINE,
+        .class_init     = opentitan_machine_class_init,
     }
 };
 

include/hw/riscv/opentitan.h

@@ -24,6 +24,7 @@
 #include "hw/char/ibex_uart.h"
 #include "hw/timer/ibex_timer.h"
 #include "hw/ssi/ibex_spi_host.h"
+#include "hw/boards.h"
 #include "qom/object.h"
 
 #define TYPE_RISCV_IBEX_SOC "riscv.lowrisc.ibex.soc"
@@ -53,7 +54,7 @@ struct LowRISCIbexSoCState {
     MemoryRegion flash_alias;
 };
 
-#define TYPE_OPENTITAN_MACHINE "opentitan"
+#define TYPE_OPENTITAN_MACHINE MACHINE_TYPE_NAME("opentitan")
 
 typedef struct OpenTitanState {
     /*< private >*/