arm: xlnx-zynqmp: Add 2xCortexR5 CPUs

Add the 2xCortexR5 CPUs to zynqmp board. They are powered off on reset
(this is true of real hardware) by default or selectable as the boot
processor.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: da34128c73ca13fc4f8c3293e1a33d1e1e345655.1434501320.git.peter.crosthwaite@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

2 files changed, 36 insertions, 0 deletions

diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c
index 0c966da8ea..5e7207846e 100644
--- a/hw/arm/xlnx-zynqmp.c
+++ b/hw/arm/xlnx-zynqmp.c
@@ -71,6 +71,13 @@ static void xlnx_zynqmp_init(Object *obj)
                                   &error_abort);
     }
 
+    for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
+        object_initialize(&s->rpu_cpu[i], sizeof(s->rpu_cpu[i]),
+                          "cortex-r5-" TYPE_ARM_CPU);
+        object_property_add_child(obj, "rpu-cpu[*]", OBJECT(&s->rpu_cpu[i]),
+                                  &error_abort);
+    }
+
     object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC);
     qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default());
 
@@ -163,6 +170,33 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
         qdev_connect_gpio_out(DEVICE(&s->apu_cpu[i]), 1, irq);
     }
 
+    for (i = 0; i < XLNX_ZYNQMP_NUM_RPU_CPUS; i++) {
+        char *name;
+
+        name = object_get_canonical_path_component(OBJECT(&s->rpu_cpu[i]));
+        if (strcmp(name, boot_cpu)) {
+            /* Secondary CPUs start in PSCI powered-down state */
+            object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true,
+                                     "start-powered-off", &error_abort);
+        } else {
+            s->boot_cpu_ptr = &s->rpu_cpu[i];
+        }
+
+        object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "reset-hivecs",
+                                 &err);
+        if (err != NULL) {
+            error_propagate(errp, err);
+            return;
+        }
+
+        object_property_set_bool(OBJECT(&s->rpu_cpu[i]), true, "realized",
+                                 &err);
+        if (err) {
+            error_propagate((errp), (err));
+            return;
+        }
+    }
+
     if (!s->boot_cpu_ptr) {
         error_setg(errp, "ZynqMP Boot cpu %s not found\n", boot_cpu);
         return;
diff --git a/include/hw/arm/xlnx-zynqmp.h b/include/hw/arm/xlnx-zynqmp.h
index 4f14a22883..c379632f2a 100644
--- a/include/hw/arm/xlnx-zynqmp.h
+++ b/include/hw/arm/xlnx-zynqmp.h
@@ -28,6 +28,7 @@
                                        TYPE_XLNX_ZYNQMP)
 
 #define XLNX_ZYNQMP_NUM_APU_CPUS 4
+#define XLNX_ZYNQMP_NUM_RPU_CPUS 2
 #define XLNX_ZYNQMP_NUM_GEMS 4
 #define XLNX_ZYNQMP_NUM_UARTS 2
 
@@ -48,6 +49,7 @@ typedef struct XlnxZynqMPState {
 
     /*< public >*/
     ARMCPU apu_cpu[XLNX_ZYNQMP_NUM_APU_CPUS];
+    ARMCPU rpu_cpu[XLNX_ZYNQMP_NUM_RPU_CPUS];
     GICState gic;
     MemoryRegion gic_mr[XLNX_ZYNQMP_GIC_REGIONS][XLNX_ZYNQMP_GIC_ALIASES];
     CadenceGEMState gem[XLNX_ZYNQMP_NUM_GEMS];