blob: 3d3d48c9733a4bfcc2482d135c53922ccc18be7d [file] [log] [blame]
Stephan Gerhold4559df92021-07-08 20:33:49 +02001// SPDX-License-Identifier: GPL-2.0+
2/* Copyright (C) 2019 Stephan Gerhold */
3
4#include <common.h>
5#include <dm.h>
6#include <generic-phy.h>
7#include <linux/bitops.h>
8#include <power/pmic.h>
9#include <power/ab8500.h>
10
11#define AB8500_USB_PHY_CTRL_REG AB8500_USB(0x8A)
12#define AB8500_BIT_PHY_CTRL_HOST_EN BIT(0)
13#define AB8500_BIT_PHY_CTRL_DEVICE_EN BIT(1)
14#define AB8500_USB_PHY_CTRL_MASK (AB8500_BIT_PHY_CTRL_HOST_EN |\
15 AB8500_BIT_PHY_CTRL_DEVICE_EN)
16
17static int ab8500_usb_phy_power_on(struct phy *phy)
18{
19 struct udevice *dev = phy->dev;
20 uint set = AB8500_BIT_PHY_CTRL_DEVICE_EN;
21
Simon Glass0ff8bb82023-02-05 15:44:26 -070022 if (IS_ENABLED(CONFIG_USB_MUSB_HOST))
Stephan Gerhold4559df92021-07-08 20:33:49 +020023 set = AB8500_BIT_PHY_CTRL_HOST_EN;
24
25 return pmic_clrsetbits(dev->parent, AB8500_USB_PHY_CTRL_REG,
26 AB8500_USB_PHY_CTRL_MASK, set);
27}
28
29static int ab8500_usb_phy_power_off(struct phy *phy)
30{
31 struct udevice *dev = phy->dev;
32
33 return pmic_clrsetbits(dev->parent, AB8500_USB_PHY_CTRL_REG,
34 AB8500_USB_PHY_CTRL_MASK, 0);
35}
36
37struct phy_ops ab8500_usb_phy_ops = {
38 .power_on = ab8500_usb_phy_power_on,
39 .power_off = ab8500_usb_phy_power_off,
40};
41
42static const struct udevice_id ab8500_usb_phy_ids[] = {
43 { .compatible = "stericsson,ab8500-usb" },
44 { }
45};
46
47U_BOOT_DRIVER(ab8500_usb_phy) = {
48 .name = "ab8500_usb_phy",
49 .id = UCLASS_PHY,
50 .of_match = ab8500_usb_phy_ids,
51 .ops = &ab8500_usb_phy_ops,
52};