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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2016, NVIDIA CORPORATION.
- */
- #include <common.h>
- #include <dm.h>
- #include <log.h>
- #include <malloc.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,
- .rfree = 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,
- };
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