projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| fe60f06d SW |
2 | /* |
| 3 | * Copyright (c) 2016, NVIDIA CORPORATION. | |
| fe60f06d SW |
4 | */ |
| 5 | ||
| d678a59d | 6 | #include <common.h> |
| fe60f06d | 7 | #include <dm.h> |
| f7ae49fc | 8 | #include <log.h> |
| 336d4615 | 9 | #include <malloc.h> |
| fe60f06d SW |
10 | #include <reset-uclass.h> |
| 11 | #include <asm/arch/clock.h> | |
| 12 | #include <asm/arch-tegra/clk_rst.h> | |
| 13 | ||
| 14 | static int tegra_car_reset_request(struct reset_ctl *reset_ctl) | |
| 15 | { | |
| 16 | debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, | |
| 17 | reset_ctl->dev, reset_ctl->id); | |
| 18 | ||
| 19 | /* PERIPH_ID_COUNT varies per SoC */ | |
| 20 | if (reset_ctl->id >= PERIPH_ID_COUNT) | |
| 21 | return -EINVAL; | |
| 22 | ||
| 23 | return 0; | |
| 24 | } | |
| 25 | ||
| fe60f06d SW |
26 | static int tegra_car_reset_assert(struct reset_ctl *reset_ctl) |
| 27 | { | |
| 28 | debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, | |
| 29 | reset_ctl->dev, reset_ctl->id); | |
| 30 | ||
| 31 | reset_set_enable(reset_ctl->id, 1); | |
| 32 | ||
| 33 | return 0; | |
| 34 | } | |
| 35 | ||
| 36 | static int tegra_car_reset_deassert(struct reset_ctl *reset_ctl) | |
| 37 | { | |
| 38 | debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, | |
| 39 | reset_ctl->dev, reset_ctl->id); | |
| 40 | ||
| 41 | reset_set_enable(reset_ctl->id, 0); | |
| 42 | ||
| 43 | return 0; | |
| 44 | } | |
| 45 | ||
| 46 | struct reset_ops tegra_car_reset_ops = { | |
| 47 | .request = tegra_car_reset_request, | |
| fe60f06d SW |
48 | .rst_assert = tegra_car_reset_assert, |
| 49 | .rst_deassert = tegra_car_reset_deassert, | |
| 50 | }; | |
| 51 | ||
| fe60f06d SW |
52 | U_BOOT_DRIVER(tegra_car_reset) = { |
| 53 | .name = "tegra_car_reset", | |
| 54 | .id = UCLASS_RESET, | |
| fe60f06d SW |
55 | .ops = &tegra_car_reset_ops, |
| 56 | }; |