2 * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <power-domain-uclass.h>
12 #define MAX_DOMAINS 32
14 struct bcm6328_power_domain {
18 static int bcm6328_power_domain_request(struct power_domain *power_domain)
20 if (power_domain->id >= MAX_DOMAINS)
26 static int bcm6328_power_domain_free(struct power_domain *power_domain)
31 static int bcm6328_power_domain_on(struct power_domain *power_domain)
33 struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
35 clrbits_be32(priv->regs, BIT(power_domain->id));
40 static int bcm6328_power_domain_off(struct power_domain *power_domain)
42 struct bcm6328_power_domain *priv = dev_get_priv(power_domain->dev);
44 setbits_be32(priv->regs, BIT(power_domain->id));
49 static int bcm6328_power_domain_probe(struct udevice *dev)
51 struct bcm6328_power_domain *priv = dev_get_priv(dev);
55 addr = dev_get_addr_size_index(dev, 0, &size);
56 if (addr == FDT_ADDR_T_NONE)
59 priv->regs = ioremap(addr, size);
64 static const struct udevice_id bcm6328_power_domain_ids[] = {
65 { .compatible = "brcm,bcm6328-power-domain" },
69 struct power_domain_ops bcm6328_power_domain_ops = {
70 .free = bcm6328_power_domain_free,
71 .off = bcm6328_power_domain_off,
72 .on = bcm6328_power_domain_on,
73 .request = bcm6328_power_domain_request,
76 U_BOOT_DRIVER(bcm6328_power_domain) = {
77 .name = "bcm6328_power_domain",
78 .id = UCLASS_POWER_DOMAIN,
79 .of_match = bcm6328_power_domain_ids,
80 .ops = &bcm6328_power_domain_ops,
81 .priv_auto_alloc_size = sizeof(struct bcm6328_power_domain),
82 .probe = bcm6328_power_domain_probe,