1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2019 MediaTek Inc. All Rights Reserved.
5 * Author: Weijie Gao <weijie.gao@mediatek.com>
12 #include <reset-uclass.h>
15 struct mtmips_reset_priv {
19 static int mtmips_reset_request(struct reset_ctl *reset_ctl)
24 static int mtmips_reset_free(struct reset_ctl *reset_ctl)
29 static int mtmips_reset_assert(struct reset_ctl *reset_ctl)
31 struct mtmips_reset_priv *priv = dev_get_priv(reset_ctl->dev);
33 setbits_32(priv->base, BIT(reset_ctl->id));
38 static int mtmips_reset_deassert(struct reset_ctl *reset_ctl)
40 struct mtmips_reset_priv *priv = dev_get_priv(reset_ctl->dev);
42 clrbits_32(priv->base, BIT(reset_ctl->id));
47 static const struct reset_ops mtmips_reset_ops = {
48 .request = mtmips_reset_request,
49 .rfree = mtmips_reset_free,
50 .rst_assert = mtmips_reset_assert,
51 .rst_deassert = mtmips_reset_deassert,
54 static int mtmips_reset_probe(struct udevice *dev)
59 static int mtmips_reset_ofdata_to_platdata(struct udevice *dev)
61 struct mtmips_reset_priv *priv = dev_get_priv(dev);
63 priv->base = (void __iomem *)dev_remap_addr_index(dev, 0);
70 static const struct udevice_id mtmips_reset_ids[] = {
71 { .compatible = "mediatek,mtmips-reset" },
75 U_BOOT_DRIVER(mtmips_reset) = {
76 .name = "mtmips-reset",
78 .of_match = mtmips_reset_ids,
79 .ofdata_to_platdata = mtmips_reset_ofdata_to_platdata,
80 .probe = mtmips_reset_probe,
81 .priv_auto_alloc_size = sizeof(struct mtmips_reset_priv),
82 .ops = &mtmips_reset_ops,