1 // SPDX-License-Identifier: GPL-2.0+
4 * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
12 #include "gdsys_soc.h"
15 * struct gdsys_soc_priv - Private data for gdsys soc bus
16 * @fpga: The gdsys IHS FPGA this bus is associated with
18 struct gdsys_soc_priv {
22 static const struct udevice_id gdsys_soc_ids[] = {
23 { .compatible = "gdsys,soc" },
27 int gdsys_soc_get_fpga(struct udevice *child, struct udevice **fpga)
29 struct gdsys_soc_priv *bus_priv;
32 debug("%s: Invalid parent\n", child->name);
36 if (!device_is_compatible(child->parent, "gdsys,soc")) {
37 debug("%s: Not child of a gdsys soc\n", child->name);
41 bus_priv = dev_get_priv(child->parent);
43 *fpga = bus_priv->fpga;
48 static int gdsys_soc_probe(struct udevice *dev)
50 struct gdsys_soc_priv *priv = dev_get_priv(dev);
52 int res = uclass_get_device_by_phandle(UCLASS_MISC, dev, "fpga",
55 debug("%s: Could not find 'fpga' phandle\n", dev->name);
60 debug("%s: Could not get FPGA device\n", dev->name);
69 U_BOOT_DRIVER(gdsys_soc_bus) = {
70 .name = "gdsys_soc_bus",
71 .id = UCLASS_SIMPLE_BUS,
72 .of_match = gdsys_soc_ids,
73 .probe = gdsys_soc_probe,
74 .priv_auto = sizeof(struct gdsys_soc_priv),