1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2016, NVIDIA CORPORATION.
4 */
5
6 #include <common.h>
7 #include <dm.h>
8 #include <dm/lists.h>
9 #include <dm/root.h>
10
11 /**
12 * The CAR exposes multiple different services. We create a sub-device for
13 * each separate type of service, since each device must be of the appropriate
14 * UCLASS.
15 */
tegra_car_bpmp_bind(struct udevice * dev)16 static int tegra_car_bpmp_bind(struct udevice *dev)
17 {
18 int ret;
19 struct udevice *child;
20
21 debug("%s(dev=%p)\n", __func__, dev);
22
23 ret = device_bind_driver_to_node(dev, "tegra_car_clk", "tegra_car_clk",
24 dev_ofnode(dev), &child);
25 if (ret)
26 return ret;
27
28 ret = device_bind_driver_to_node(dev, "tegra_car_reset",
29 "tegra_car_reset", dev_ofnode(dev),
30 &child);
31 if (ret)
32 return ret;
33
34 return 0;
35 }
36
tegra_car_bpmp_probe(struct udevice * dev)37 static int tegra_car_bpmp_probe(struct udevice *dev)
38 {
39 debug("%s(dev=%p)\n", __func__, dev);
40
41 return 0;
42 }
43
tegra_car_bpmp_remove(struct udevice * dev)44 static int tegra_car_bpmp_remove(struct udevice *dev)
45 {
46 debug("%s(dev=%p)\n", __func__, dev);
47
48 return 0;
49 }
50
51 static const struct udevice_id tegra_car_bpmp_ids[] = {
52 { .compatible = "nvidia,tegra20-car" },
53 { .compatible = "nvidia,tegra30-car" },
54 { .compatible = "nvidia,tegra114-car" },
55 { .compatible = "nvidia,tegra124-car" },
56 { .compatible = "nvidia,tegra210-car" },
57 { }
58 };
59
60 U_BOOT_DRIVER(tegra_car_bpmp) = {
61 .name = "tegra_car",
62 .id = UCLASS_MISC,
63 .of_match = tegra_car_bpmp_ids,
64 .bind = tegra_car_bpmp_bind,
65 .probe = tegra_car_bpmp_probe,
66 .remove = tegra_car_bpmp_remove,
67 };
68