[Qemu-devel] [PATCH 6/6] e500: Add support for eTSEC in device tree

[Alexander Graf]

This patch adds support to expose eTSEC devices in the dynamically created
guest facing device tree. This allows us to expose eTSEC devices into guests
without changes in the machine file.

Because we can now tell the guest about eTSEC devices this patch allows the
user to specify eTSEC devices via -device at all.

Signed-off-by: Alexander Graf <address@hidden>
---
 hw/ppc/e500.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index bf704b0..bebff6f 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -37,6 +37,7 @@
 #include "qemu/host-utils.h"
 #include "hw/pci-host/ppce500.h"
 #include "qemu/error-report.h"
+#include "hw/net/fsl_etsec/etsec.h"
 
 #define EPAPR_MAGIC                (0x45504150)
 #define BINARY_DEVICE_TREE_FILE    "mpc8544ds.dtb"
@@ -139,6 +140,34 @@ typedef struct PlatformDevtreeData {
     int id;
 } PlatformDevtreeData;
 
+static int create_devtree_etsec(eTSEC *etsec, PlatformDevtreeData *data)
+{
+    SysBusDevice *sbdev = &etsec->busdev;
+    gchar *node = g_strdup_printf("/platform/address@hidden", data->id);
+    gchar *group = g_strdup_printf("%s/queue-group", node);
+    void *fdt = data->fdt;
+
+    qemu_fdt_add_subnode(fdt, node);
+    qemu_fdt_setprop_string(fdt, node, "device_type", "network");
+    qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,etsec2");
+    qemu_fdt_setprop_string(fdt, node, "model", "eTSEC");
+    qemu_fdt_setprop(fdt, node, "local-mac-address", etsec->conf.macaddr.a, 6);
+    qemu_fdt_setprop_cells(fdt, node, "fixed-link", 0, 1, 1000, 0, 0);
+
+    qemu_fdt_add_subnode(fdt, group);
+    qemu_fdt_setprop_cells(fdt, group, "reg", sbdev->user_mmios[0], 0x1000);
+    qemu_fdt_setprop_phandle(fdt, group, "interrupt-parent", data->mpic);
+    qemu_fdt_setprop_cells(fdt, group, "interrupts",
+        data->irq_start + sbdev->user_irqs[0], 0x0,
+        data->irq_start + sbdev->user_irqs[1], 0x0,
+        data->irq_start + sbdev->user_irqs[2], 0x0);
+
+    g_free(node);
+    g_free(group);
+
+    return 0;
+}
+
 static int sysbus_device_create_devtree(Object *obj, void *opaque)
 {
     PlatformDevtreeData *data = opaque;
@@ -154,6 +183,11 @@ static int sysbus_device_create_devtree(Object *obj, void 
*opaque)
         return object_child_foreach(obj, sysbus_device_create_devtree, data);
     }
 
+    if (object_dynamic_cast(obj, TYPE_ETSEC_COMMON)) {
+        create_devtree_etsec(ETSEC_COMMON(dev), data);
+        matched = true;
+    }
+
     if (matched) {
         data->id++;
     } else {
-- 
1.8.1.4