projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 190c36b9 | 2 | /* |
| 5a1ab87f | 3 | * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com> |
| 190c36b9 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> | |
| 190c36b9 ÁFR |
8 | */ |
| 9 | ||
| d678a59d | 10 | #include <common.h> |
| 190c36b9 ÁFR |
11 | #include <dm.h> |
| 12 | #include <generic-phy.h> | |
| f7ae49fc | 13 | #include <log.h> |
| 336d4615 | 14 | #include <malloc.h> |
| 190c36b9 ÁFR |
15 | #include <reset.h> |
| 16 | #include <asm/io.h> | |
| 17 | #include <dm/device.h> | |
| cd93d625 | 18 | #include <linux/bitops.h> |
| 190c36b9 ÁFR |
19 | |
| 20 | /* USBH Swap Control register */ | |
| 21 | #define USBH_SWAP_REG 0x00 | |
| 22 | #define USBH_SWAP_OHCI_DATA BIT(0) | |
| 23 | #define USBH_SWAP_OHCI_ENDIAN BIT(1) | |
| 24 | #define USBH_SWAP_EHCI_DATA BIT(3) | |
| 25 | #define USBH_SWAP_EHCI_ENDIAN BIT(4) | |
| 26 | ||
| 27 | /* USBH Test register */ | |
| 28 | #define USBH_TEST_REG 0x24 | |
| 29 | #define USBH_TEST_PORT_CTL 0x1c0020 | |
| 30 | ||
| 31 | struct bcm6358_usbh_priv { | |
| 32 | void __iomem *regs; | |
| 33 | }; | |
| 34 | ||
| 35 | static int bcm6358_usbh_init(struct phy *phy) | |
| 36 | { | |
| 37 | struct bcm6358_usbh_priv *priv = dev_get_priv(phy->dev); | |
| 38 | ||
| 39 | /* configure to work in native cpu endian */ | |
| 40 | clrsetbits_be32(priv->regs + USBH_SWAP_REG, | |
| 41 | USBH_SWAP_EHCI_ENDIAN | USBH_SWAP_OHCI_ENDIAN, | |
| 42 | USBH_SWAP_EHCI_DATA | USBH_SWAP_OHCI_DATA); | |
| 43 | ||
| 44 | /* test port control */ | |
| 45 | writel_be(USBH_TEST_PORT_CTL, priv->regs + USBH_TEST_REG); | |
| 46 | ||
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 50 | static struct phy_ops bcm6358_usbh_ops = { | |
| 51 | .init = bcm6358_usbh_init, | |
| 52 | }; | |
| 53 | ||
| 54 | static const struct udevice_id bcm6358_usbh_ids[] = { | |
| 55 | { .compatible = "brcm,bcm6358-usbh" }, | |
| 56 | { /* sentinel */ } | |
| 57 | }; | |
| 58 | ||
| 59 | static int bcm6358_usbh_probe(struct udevice *dev) | |
| 60 | { | |
| 61 | struct bcm6358_usbh_priv *priv = dev_get_priv(dev); | |
| 62 | struct reset_ctl rst_ctl; | |
| 190c36b9 ÁFR |
63 | int ret; |
| 64 | ||
| 5a1ab87f ÁFR |
65 | priv->regs = dev_remap_addr(dev); |
| 66 | if (!priv->regs) | |
| 190c36b9 ÁFR |
67 | return -EINVAL; |
| 68 | ||
| 190c36b9 ÁFR |
69 | /* perform reset */ |
| 70 | ret = reset_get_by_index(dev, 0, &rst_ctl); | |
| 71 | if (ret < 0) | |
| 72 | return ret; | |
| 73 | ||
| 74 | ret = reset_deassert(&rst_ctl); | |
| 75 | if (ret < 0) | |
| 76 | return ret; | |
| 77 | ||
| 78 | ret = reset_free(&rst_ctl); | |
| 79 | if (ret < 0) | |
| 80 | return ret; | |
| 81 | ||
| 82 | return 0; | |
| 83 | } | |
| 84 | ||
| 85 | U_BOOT_DRIVER(bcm6358_usbh) = { | |
| 86 | .name = "bcm6358-usbh", | |
| 87 | .id = UCLASS_PHY, | |
| 88 | .of_match = bcm6358_usbh_ids, | |
| 89 | .ops = &bcm6358_usbh_ops, | |
| 41575d8e | 90 | .priv_auto = sizeof(struct bcm6358_usbh_priv), |
| 190c36b9 ÁFR |
91 | .probe = bcm6358_usbh_probe, |
| 92 | }; |