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https://source.denx.de/u-boot/u-boot.git
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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2015, Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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* All rights reserved.
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/device_compat.h>
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#include <init.h>
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#include <log.h>
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#include <pci.h>
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#include <reset.h>
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#include <usb.h>
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#include <usb/xhci.h>
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struct xhci_pci_plat {
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struct reset_ctl reset;
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};
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static int xhci_pci_init(struct udevice *dev, struct xhci_hccr **ret_hccr,
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struct xhci_hcor **ret_hcor)
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{
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struct xhci_hccr *hccr;
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struct xhci_hcor *hcor;
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u32 cmd;
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hccr = (struct xhci_hccr *)dm_pci_map_bar(dev,
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PCI_BASE_ADDRESS_0, 0, 0, PCI_REGION_TYPE,
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PCI_REGION_MEM);
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if (!hccr) {
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printf("xhci-pci init cannot map PCI mem bar\n");
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return -EIO;
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}
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hcor = (struct xhci_hcor *)((uintptr_t) hccr +
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HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
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debug("XHCI-PCI init hccr %p and hcor %p hc_length %d\n",
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hccr, hcor, (u32)HC_LENGTH(xhci_readl(&hccr->cr_capbase)));
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*ret_hccr = hccr;
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*ret_hcor = hcor;
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/* enable busmaster */
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dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
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cmd |= PCI_COMMAND_MASTER;
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dm_pci_write_config32(dev, PCI_COMMAND, cmd);
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return 0;
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}
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static int xhci_pci_probe(struct udevice *dev)
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{
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struct xhci_pci_plat *plat = dev_get_plat(dev);
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struct xhci_hccr *hccr;
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struct xhci_hcor *hcor;
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int ret;
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ret = reset_get_by_index(dev, 0, &plat->reset);
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if (ret && ret != -ENOENT && ret != -ENOTSUPP) {
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dev_err(dev, "failed to get reset\n");
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return ret;
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}
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if (reset_valid(&plat->reset)) {
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ret = reset_assert(&plat->reset);
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if (ret)
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goto err_reset;
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ret = reset_deassert(&plat->reset);
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if (ret)
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goto err_reset;
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}
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ret = xhci_pci_init(dev, &hccr, &hcor);
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if (ret)
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goto err_reset;
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ret = xhci_register(dev, hccr, hcor);
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if (ret)
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goto err_reset;
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return 0;
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err_reset:
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if (reset_valid(&plat->reset))
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reset_free(&plat->reset);
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return ret;
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}
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static int xhci_pci_remove(struct udevice *dev)
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{
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struct xhci_pci_plat *plat = dev_get_plat(dev);
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xhci_deregister(dev);
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if (reset_valid(&plat->reset))
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reset_free(&plat->reset);
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return 0;
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}
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static const struct udevice_id xhci_pci_ids[] = {
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{ .compatible = "xhci-pci" },
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{ }
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};
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U_BOOT_DRIVER(xhci_pci) = {
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.name = "xhci_pci",
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.id = UCLASS_USB,
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.probe = xhci_pci_probe,
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.remove = xhci_pci_remove,
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.of_match = xhci_pci_ids,
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.ops = &xhci_usb_ops,
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.plat_auto = sizeof(struct xhci_pci_plat),
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.priv_auto = sizeof(struct xhci_ctrl),
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.flags = DM_FLAG_OS_PREPARE | DM_FLAG_ALLOC_PRIV_DMA,
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};
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static struct pci_device_id xhci_pci_supported[] = {
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{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_XHCI, ~0) },
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{},
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};
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U_BOOT_PCI_DEVICE(xhci_pci, xhci_pci_supported);
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