riscv/opentitan: Connect the PLIC device

Signed-off-by: NAlistair Francis <alistair.francis@wdc.com>
Reviewed-by: NBin Meng <bin.meng@windriver.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>

hw/riscv/opentitan.c

@@ -26,6 +26,7 @@
 #include "hw/riscv/boot.h"
 #include "exec/address-spaces.h"
 #include "qemu/units.h"
+#include "sysemu/sysemu.h"
 
 static const struct MemmapEntry {
     hwaddr base;
@@ -94,6 +95,8 @@ static void riscv_lowrisc_ibex_soc_init(Object *obj)
     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(obj);
 
     object_initialize_child(obj, "cpus", &s->cpus, TYPE_RISCV_HART_ARRAY);
+
+    object_initialize_child(obj, "plic", &s->plic, TYPE_IBEX_PLIC);
 }
 
 static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
@@ -102,6 +105,7 @@ static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
     MachineState *ms = MACHINE(qdev_get_machine());
     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(dev_soc);
     MemoryRegion *sys_mem = get_system_memory();
+    Error *err = NULL;
 
     object_property_set_str(OBJECT(&s->cpus), ms->cpu_type, "cpu-type",
                             &error_abort);
@@ -121,6 +125,14 @@ static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
     memory_region_add_subregion(sys_mem, memmap[IBEX_FLASH].base,
                                 &s->flash_mem);
 
+    /* PLIC */
+    sysbus_realize(SYS_BUS_DEVICE(&s->plic), &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
+    sysbus_mmio_map(SYS_BUS_DEVICE(&s->plic), 0, memmap[IBEX_PLIC].base);
+
     create_unimplemented_device("riscv.lowrisc.ibex.uart",
         memmap[IBEX_UART].base, memmap[IBEX_UART].size);
     create_unimplemented_device("riscv.lowrisc.ibex.gpio",
@@ -141,8 +153,6 @@ static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
         memmap[IBEX_AES].base, memmap[IBEX_AES].size);
     create_unimplemented_device("riscv.lowrisc.ibex.hmac",
         memmap[IBEX_HMAC].base, memmap[IBEX_HMAC].size);
-    create_unimplemented_device("riscv.lowrisc.ibex.plic",
-        memmap[IBEX_PLIC].base, memmap[IBEX_PLIC].size);
     create_unimplemented_device("riscv.lowrisc.ibex.pinmux",
         memmap[IBEX_PINMUX].base, memmap[IBEX_PINMUX].size);
     create_unimplemented_device("riscv.lowrisc.ibex.alert_handler",

include/hw/riscv/opentitan.h

@@ -20,6 +20,7 @@
 #define HW_OPENTITAN_H
 
 #include "hw/riscv/riscv_hart.h"
+#include "hw/intc/ibex_plic.h"
 
 #define TYPE_RISCV_IBEX_SOC "riscv.lowrisc.ibex.soc"
 #define RISCV_IBEX_SOC(obj) \
@@ -31,6 +32,8 @@ typedef struct LowRISCIbexSoCState {
 
     /*< public >*/
     RISCVHartArrayState cpus;
+    IbexPlicState plic;
+
     MemoryRegion flash_mem;
     MemoryRegion rom;
 } LowRISCIbexSoCState;