diff --git a/drivers/pci/pci_sandbox.c b/drivers/pci/pci_sandbox.c
index 67cd733..119a98d 100644
--- a/drivers/pci/pci_sandbox.c
+++ b/drivers/pci/pci_sandbox.c
@@ -10,15 +10,27 @@
 #include <inttypes.h>
 #include <pci.h>
 
+#define FDT_DEV_INFO_CELLS	4
+#define FDT_DEV_INFO_SIZE	(FDT_DEV_INFO_CELLS * sizeof(u32))
+
+#define SANDBOX_PCI_DEVFN(d, f)	((d << 3) | f)
+
+struct sandbox_pci_priv {
+	struct {
+		u16 vendor;
+		u16 device;
+	} vendev[256];
+};
+
 static int sandbox_pci_write_config(struct udevice *bus, pci_dev_t devfn,
 				    uint offset, ulong value,
 				    enum pci_size_t size)
 {
 	struct dm_pci_emul_ops *ops;
-	struct udevice *emul;
+	struct udevice *container, *emul;
 	int ret;
 
-	ret = sandbox_pci_get_emul(bus, devfn, &emul);
+	ret = sandbox_pci_get_emul(bus, devfn, &container, &emul);
 	if (ret)
 		return ret == -ENODEV ? 0 : ret;
 	ops = pci_get_emul_ops(emul);
@@ -33,14 +45,31 @@
 				   enum pci_size_t size)
 {
 	struct dm_pci_emul_ops *ops;
-	struct udevice *emul;
+	struct udevice *container, *emul;
+	struct sandbox_pci_priv *priv = dev_get_priv(bus);
 	int ret;
 
 	/* Prepare the default response */
 	*valuep = pci_get_ff(size);
-	ret = sandbox_pci_get_emul(bus, devfn, &emul);
-	if (ret)
-		return ret == -ENODEV ? 0 : ret;
+	ret = sandbox_pci_get_emul(bus, devfn, &container, &emul);
+	if (ret) {
+		if (!container) {
+			u16 vendor, device;
+
+			devfn = SANDBOX_PCI_DEVFN(PCI_DEV(devfn),
+						  PCI_FUNC(devfn));
+			vendor = priv->vendev[devfn].vendor;
+			device = priv->vendev[devfn].device;
+			if (offset == PCI_VENDOR_ID && vendor)
+				*valuep = vendor;
+			else if (offset == PCI_DEVICE_ID && device)
+				*valuep = device;
+
+			return 0;
+		} else {
+			return ret == -ENODEV ? 0 : ret;
+		}
+	}
 	ops = pci_get_emul_ops(emul);
 	if (!ops || !ops->read_config)
 		return -ENOSYS;
@@ -48,6 +77,41 @@
 	return ops->read_config(emul, offset, valuep, size);
 }
 
+static int sandbox_pci_probe(struct udevice *dev)
+{
+	struct sandbox_pci_priv *priv = dev_get_priv(dev);
+	const fdt32_t *cell;
+	u8 pdev, pfn, devfn;
+	int len;
+
+	cell = ofnode_get_property(dev_ofnode(dev), "sandbox,dev-info", &len);
+	if (!cell)
+		return 0;
+
+	if ((len % FDT_DEV_INFO_SIZE) == 0) {
+		int num = len / FDT_DEV_INFO_SIZE;
+		int i;
+
+		for (i = 0; i < num; i++) {
+			debug("dev info #%d: %02x %02x %04x %04x\n", i,
+			      fdt32_to_cpu(cell[0]), fdt32_to_cpu(cell[1]),
+			      fdt32_to_cpu(cell[2]), fdt32_to_cpu(cell[3]));
+
+			pdev = fdt32_to_cpu(cell[0]);
+			pfn = fdt32_to_cpu(cell[1]);
+			if (pdev > 31 || pfn > 7)
+				continue;
+			devfn = SANDBOX_PCI_DEVFN(pdev, pfn);
+			priv->vendev[devfn].vendor = fdt32_to_cpu(cell[2]);
+			priv->vendev[devfn].device = fdt32_to_cpu(cell[3]);
+
+			cell += FDT_DEV_INFO_CELLS;
+		}
+	}
+
+	return 0;
+}
+
 static const struct dm_pci_ops sandbox_pci_ops = {
 	.read_config = sandbox_pci_read_config,
 	.write_config = sandbox_pci_write_config,
@@ -63,6 +127,8 @@
 	.id	= UCLASS_PCI,
 	.of_match = sandbox_pci_ids,
 	.ops	= &sandbox_pci_ops,
+	.probe	= sandbox_pci_probe,
+	.priv_auto_alloc_size = sizeof(struct sandbox_pci_priv),
 
 	/* Attach an emulator if we can */
 	.child_post_bind = dm_scan_fdt_dev,