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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
- *
- * Derived from linux/arch/mips/bcm63xx/usb-common.c:
- * Copyright 2008 Maxime Bizon <mbizon@freebox.fr>
- * Copyright 2013 Florian Fainelli <florian@openwrt.org>
- */
- #include <common.h>
- #include <clk.h>
- #include <dm.h>
- #include <generic-phy.h>
- #include <log.h>
- #include <malloc.h>
- #include <reset.h>
- #include <asm/io.h>
- #include <dm/device.h>
- #include <linux/bitops.h>
- #define USBH_SETUP_PORT1_EN BIT(0)
- struct bcm6348_usbh_priv {
- void __iomem *regs;
- };
- static int bcm6348_usbh_init(struct phy *phy)
- {
- struct bcm6348_usbh_priv *priv = dev_get_priv(phy->dev);
- writel_be(USBH_SETUP_PORT1_EN, priv->regs);
- return 0;
- }
- static struct phy_ops bcm6348_usbh_ops = {
- .init = bcm6348_usbh_init,
- };
- static const struct udevice_id bcm6348_usbh_ids[] = {
- { .compatible = "brcm,bcm6348-usbh" },
- { /* sentinel */ }
- };
- static int bcm6348_usbh_probe(struct udevice *dev)
- {
- struct bcm6348_usbh_priv *priv = dev_get_priv(dev);
- struct reset_ctl rst_ctl;
- struct clk clk;
- int ret;
- priv->regs = dev_remap_addr(dev);
- if (!priv->regs)
- return -EINVAL;
- /* enable usbh clock */
- ret = clk_get_by_name(dev, "usbh", &clk);
- if (ret < 0)
- return ret;
- ret = clk_enable(&clk);
- if (ret < 0)
- return ret;
- ret = clk_free(&clk);
- if (ret < 0)
- return ret;
- /* perform reset */
- ret = reset_get_by_index(dev, 0, &rst_ctl);
- if (ret < 0)
- return ret;
- ret = reset_deassert(&rst_ctl);
- if (ret < 0)
- return ret;
- ret = reset_free(&rst_ctl);
- if (ret < 0)
- return ret;
- return 0;
- }
- U_BOOT_DRIVER(bcm6348_usbh) = {
- .name = "bcm6348-usbh",
- .id = UCLASS_PHY,
- .of_match = bcm6348_usbh_ids,
- .ops = &bcm6348_usbh_ops,
- .priv_auto = sizeof(struct bcm6348_usbh_priv),
- .probe = bcm6348_usbh_probe,
- };
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