1 /* 2 * Copyright (c) 2016, NVIDIA CORPORATION. 3 * 4 * SPDX-License-Identifier: GPL-2.0 5 */ 6 7 #include <common.h> 8 #include <dm.h> 9 #include <dm/lists.h> 10 #include <dm/root.h> 11 12 /** 13 * The CAR exposes multiple different services. We create a sub-device for 14 * each separate type of service, since each device must be of the appropriate 15 * UCLASS. 16 */ 17 static int tegra_car_bpmp_bind(struct udevice *dev) 18 { 19 int ret; 20 struct udevice *child; 21 22 debug("%s(dev=%p)\n", __func__, dev); 23 24 ret = device_bind_driver_to_node(dev, "tegra_car_clk", "tegra_car_clk", 25 dev->of_offset, &child); 26 if (ret) 27 return ret; 28 29 ret = device_bind_driver_to_node(dev, "tegra_car_reset", 30 "tegra_car_reset", dev->of_offset, 31 &child); 32 if (ret) 33 return ret; 34 35 return 0; 36 } 37 38 static int tegra_car_bpmp_probe(struct udevice *dev) 39 { 40 debug("%s(dev=%p)\n", __func__, dev); 41 42 return 0; 43 } 44 45 static int tegra_car_bpmp_remove(struct udevice *dev) 46 { 47 debug("%s(dev=%p)\n", __func__, dev); 48 49 return 0; 50 } 51 52 static const struct udevice_id tegra_car_bpmp_ids[] = { 53 { .compatible = "nvidia,tegra20-car" }, 54 { .compatible = "nvidia,tegra30-car" }, 55 { .compatible = "nvidia,tegra114-car" }, 56 { .compatible = "nvidia,tegra124-car" }, 57 { .compatible = "nvidia,tegra210-car" }, 58 { } 59 }; 60 61 U_BOOT_DRIVER(tegra_car_bpmp) = { 62 .name = "tegra_car", 63 .id = UCLASS_MISC, 64 .of_match = tegra_car_bpmp_ids, 65 .bind = tegra_car_bpmp_bind, 66 .probe = tegra_car_bpmp_probe, 67 .remove = tegra_car_bpmp_remove, 68 }; 69