1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
8 #include <power-domain-uclass.h>
11 #define MAX_DOMAINS 32
13 struct bcm6328_power_domain {
17 static int bcm6328_power_domain_request(struct power_domain *power_domain)
19 if (power_domain->id >= MAX_DOMAINS)
25 static int bcm6328_power_domain_free(struct power_domain *power_domain)
30 static int bcm6328_power_domain_on(struct power_domain *power_domain)
32 struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
34 clrbits_be32(priv->regs, BIT(power_domain->id));
39 static int bcm6328_power_domain_off(struct power_domain *power_domain)
41 struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
43 setbits_be32(priv->regs, BIT(power_domain->id));
48 static int bcm6328_power_domain_probe(struct udevice *dev)
50 struct bcm6328_power_domain *priv = dev_get_priv(dev);
52 priv->regs = dev_remap_addr(dev);
59 static const struct udevice_id bcm6328_power_domain_ids[] = {
60 { .compatible = "brcm,bcm6328-power-domain" },
64 struct power_domain_ops bcm6328_power_domain_ops = {
65 .free = bcm6328_power_domain_free,
66 .off = bcm6328_power_domain_off,
67 .on = bcm6328_power_domain_on,
68 .request = bcm6328_power_domain_request,
71 U_BOOT_DRIVER(bcm6328_power_domain) = {
72 .name = "bcm6328_power_domain",
73 .id = UCLASS_POWER_DOMAIN,
74 .of_match = bcm6328_power_domain_ids,
75 .ops = &bcm6328_power_domain_ops,
76 .priv_auto_alloc_size = sizeof(struct bcm6328_power_domain),
77 .probe = bcm6328_power_domain_probe,