1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
5 * Derived from linux/arch/mips/bcm63xx/reset.c:
6 * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
14 #include <reset-uclass.h>
19 struct bcm6345_reset_priv {
23 static int bcm6345_reset_assert(struct reset_ctl *rst)
25 struct bcm6345_reset_priv *priv = dev_get_priv(rst->dev);
27 clrbits_be32(priv->regs, BIT(rst->id));
33 static int bcm6345_reset_deassert(struct reset_ctl *rst)
35 struct bcm6345_reset_priv *priv = dev_get_priv(rst->dev);
37 setbits_be32(priv->regs, BIT(rst->id));
43 static int bcm6345_reset_free(struct reset_ctl *rst)
48 static int bcm6345_reset_request(struct reset_ctl *rst)
50 if (rst->id >= MAX_RESETS)
53 return bcm6345_reset_assert(rst);
56 struct reset_ops bcm6345_reset_reset_ops = {
57 .rfree = bcm6345_reset_free,
58 .request = bcm6345_reset_request,
59 .rst_assert = bcm6345_reset_assert,
60 .rst_deassert = bcm6345_reset_deassert,
63 static const struct udevice_id bcm6345_reset_ids[] = {
64 { .compatible = "brcm,bcm6345-reset" },
68 static int bcm6345_reset_probe(struct udevice *dev)
70 struct bcm6345_reset_priv *priv = dev_get_priv(dev);
72 priv->regs = dev_remap_addr(dev);
79 U_BOOT_DRIVER(bcm6345_reset) = {
80 .name = "bcm6345-reset",
82 .of_match = bcm6345_reset_ids,
83 .ops = &bcm6345_reset_reset_ops,
84 .probe = bcm6345_reset_probe,
85 .priv_auto_alloc_size = sizeof(struct bcm6345_reset_priv),