mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 01:38:22 +00:00
ad20358c74
This function always succeeds, so don't check its return value. Signed-off-by: Sean Anderson <seanga2@gmail.com> Link: https://lore.kernel.org/r/20220115222504.617013-5-seanga2@gmail.com
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
// 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;
|
|
|
|
clk_free(&clk);
|
|
|
|
/* 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,
|
|
};
|