1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2019 MediaTek Inc. All Rights Reserved.
5 * Author: Weijie Gao <weijie.gao@mediatek.com>
13 #include <reset-uclass.h>
16 struct mtmips_reset_priv {
20 static int mtmips_reset_request(struct reset_ctl *reset_ctl)
25 static int mtmips_reset_free(struct reset_ctl *reset_ctl)
30 static int mtmips_reset_assert(struct reset_ctl *reset_ctl)
32 struct mtmips_reset_priv *priv = dev_get_priv(reset_ctl->dev);
34 setbits_32(priv->base, BIT(reset_ctl->id));
39 static int mtmips_reset_deassert(struct reset_ctl *reset_ctl)
41 struct mtmips_reset_priv *priv = dev_get_priv(reset_ctl->dev);
43 clrbits_32(priv->base, BIT(reset_ctl->id));
48 static const struct reset_ops mtmips_reset_ops = {
49 .request = mtmips_reset_request,
50 .rfree = mtmips_reset_free,
51 .rst_assert = mtmips_reset_assert,
52 .rst_deassert = mtmips_reset_deassert,
55 static int mtmips_reset_probe(struct udevice *dev)
60 static int mtmips_reset_ofdata_to_platdata(struct udevice *dev)
62 struct mtmips_reset_priv *priv = dev_get_priv(dev);
64 priv->base = (void __iomem *)dev_remap_addr_index(dev, 0);
71 static const struct udevice_id mtmips_reset_ids[] = {
72 { .compatible = "mediatek,mtmips-reset" },
76 U_BOOT_DRIVER(mtmips_reset) = {
77 .name = "mtmips-reset",
79 .of_match = mtmips_reset_ids,
80 .ofdata_to_platdata = mtmips_reset_ofdata_to_platdata,
81 .probe = mtmips_reset_probe,
82 .priv_auto_alloc_size = sizeof(struct mtmips_reset_priv),
83 .ops = &mtmips_reset_ops,