projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| bcb9b502 | 2 | /* |
| 50d16bcf | 3 | * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com> |
| bcb9b502 ÁFR |
4 | * |
| 5 | * Derived from linux/arch/mips/bcm63xx/usb-common.c: | |
| 6 | * Copyright 2008 Maxime Bizon <mbizon@freebox.fr> | |
| 7 | * Copyright 2013 Florian Fainelli <florian@openwrt.org> | |
| bcb9b502 ÁFR |
8 | */ |
| 9 | ||
| 10 | #include <common.h> | |
| 11 | #include <clk.h> | |
| 12 | #include <dm.h> | |
| 13 | #include <generic-phy.h> | |
| 336d4615 | 14 | #include <malloc.h> |
| bcb9b502 ÁFR |
15 | #include <reset.h> |
| 16 | #include <asm/io.h> | |
| 17 | #include <dm/device.h> | |
| 18 | ||
| 19 | #define USBH_SETUP_PORT1_EN BIT(0) | |
| 20 | ||
| 21 | struct bcm6348_usbh_priv { | |
| 22 | void __iomem *regs; | |
| 23 | }; | |
| 24 | ||
| 25 | static int bcm6348_usbh_init(struct phy *phy) | |
| 26 | { | |
| 27 | struct bcm6348_usbh_priv *priv = dev_get_priv(phy->dev); | |
| 28 | ||
| 29 | writel_be(USBH_SETUP_PORT1_EN, priv->regs); | |
| 30 | ||
| 31 | return 0; | |
| 32 | } | |
| 33 | ||
| 34 | static struct phy_ops bcm6348_usbh_ops = { | |
| 35 | .init = bcm6348_usbh_init, | |
| 36 | }; | |
| 37 | ||
| 38 | static const struct udevice_id bcm6348_usbh_ids[] = { | |
| 39 | { .compatible = "brcm,bcm6348-usbh" }, | |
| 40 | { /* sentinel */ } | |
| 41 | }; | |
| 42 | ||
| 43 | static int bcm6348_usbh_probe(struct udevice *dev) | |
| 44 | { | |
| 45 | struct bcm6348_usbh_priv *priv = dev_get_priv(dev); | |
| 46 | struct reset_ctl rst_ctl; | |
| 47 | struct clk clk; | |
| bcb9b502 ÁFR |
48 | int ret; |
| 49 | ||
| 50d16bcf ÁFR |
50 | priv->regs = dev_remap_addr(dev); |
| 51 | if (!priv->regs) | |
| bcb9b502 ÁFR |
52 | return -EINVAL; |
| 53 | ||
| bcb9b502 ÁFR |
54 | /* enable usbh clock */ |
| 55 | ret = clk_get_by_name(dev, "usbh", &clk); | |
| 56 | if (ret < 0) | |
| 57 | return ret; | |
| 58 | ||
| 59 | ret = clk_enable(&clk); | |
| 60 | if (ret < 0) | |
| 61 | return ret; | |
| 62 | ||
| 63 | ret = clk_free(&clk); | |
| 64 | if (ret < 0) | |
| 65 | return ret; | |
| 66 | ||
| 67 | /* perform reset */ | |
| 68 | ret = reset_get_by_index(dev, 0, &rst_ctl); | |
| 69 | if (ret < 0) | |
| 70 | return ret; | |
| 71 | ||
| 72 | ret = reset_deassert(&rst_ctl); | |
| 73 | if (ret < 0) | |
| 74 | return ret; | |
| 75 | ||
| 76 | ret = reset_free(&rst_ctl); | |
| 77 | if (ret < 0) | |
| 78 | return ret; | |
| 79 | ||
| 80 | return 0; | |
| 81 | } | |
| 82 | ||
| 83 | U_BOOT_DRIVER(bcm6348_usbh) = { | |
| 84 | .name = "bcm6348-usbh", | |
| 85 | .id = UCLASS_PHY, | |
| 86 | .of_match = bcm6348_usbh_ids, | |
| 87 | .ops = &bcm6348_usbh_ops, | |
| 88 | .priv_auto_alloc_size = sizeof(struct bcm6348_usbh_priv), | |
| 89 | .probe = bcm6348_usbh_probe, | |
| 90 | }; |