// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2016, NVIDIA CORPORATION. */ #include <common.h> #include <dm.h> #include <misc.h> #include <reset-uclass.h> #include <asm/arch-tegra/bpmp_abi.h> static int tegra186_reset_request(struct reset_ctl *reset_ctl) { debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, reset_ctl->dev, reset_ctl->id); return 0; } static int tegra186_reset_free(struct reset_ctl *reset_ctl) { debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, reset_ctl->dev, reset_ctl->id); return 0; } static int tegra186_reset_common(struct reset_ctl *reset_ctl, enum mrq_reset_commands cmd) { struct mrq_reset_request req; int ret; req.cmd = cmd; req.reset_id = reset_ctl->id; ret = misc_call(reset_ctl->dev->parent, MRQ_RESET, &req, sizeof(req), NULL, 0); if (ret < 0) return ret; return 0; } static int tegra186_reset_assert(struct reset_ctl *reset_ctl) { debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, reset_ctl->dev, reset_ctl->id); return tegra186_reset_common(reset_ctl, CMD_RESET_ASSERT); } static int tegra186_reset_deassert(struct reset_ctl *reset_ctl) { debug("%s(reset_ctl=%p) (dev=%p, id=%lu)\n", __func__, reset_ctl, reset_ctl->dev, reset_ctl->id); return tegra186_reset_common(reset_ctl, CMD_RESET_DEASSERT); } struct reset_ops tegra186_reset_ops = { .request = tegra186_reset_request, .free = tegra186_reset_free, .rst_assert = tegra186_reset_assert, .rst_deassert = tegra186_reset_deassert, }; static int tegra186_reset_probe(struct udevice *dev) { debug("%s(dev=%p)\n", __func__, dev); return 0; } U_BOOT_DRIVER(tegra186_reset) = { .name = "tegra186_reset", .id = UCLASS_RESET, .probe = tegra186_reset_probe, .ops = &tegra186_reset_ops, };