mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-04 18:40:42 +09:00
caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
179 lines
3.9 KiB
C
179 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*-
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* Copyright (c) 2007-2008, Juniper Networks, Inc.
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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 <errno.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 <usb.h>
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#include <asm/io.h>
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#include "ehci.h"
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/* Information about a USB port */
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struct ehci_pci_priv {
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struct ehci_ctrl ehci;
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struct phy phy;
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};
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#if CONFIG_IS_ENABLED(DM_USB)
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static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
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struct ehci_hcor **ret_hcor)
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{
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struct ehci_pci_priv *priv = dev_get_priv(dev);
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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int ret;
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u32 cmd;
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ret = ehci_setup_phy(dev, &priv->phy, 0);
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if (ret)
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return ret;
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hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
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PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
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hcor = (struct ehci_hcor *)((uintptr_t) hccr +
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HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
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debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n",
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(ulong)hccr, (ulong)hcor,
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(u32)HC_LENGTH(ehci_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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#else
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#ifdef CONFIG_PCI_EHCI_DEVICE
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static struct pci_device_id ehci_pci_ids[] = {
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/* Please add supported PCI EHCI controller ids here */
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{0x1033, 0x00E0}, /* NEC */
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{0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
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{0x12D8, 0x400F}, /* Pericom */
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{0, 0}
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};
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#endif
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static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
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struct ehci_hcor **ret_hcor)
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{
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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u32 cmd;
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hccr = (struct ehci_hccr *)pci_map_bar(pdev,
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PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
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hcor = (struct ehci_hcor *)((uintptr_t) hccr +
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HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
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debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
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(u32)hccr, (u32)hcor,
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(u32)HC_LENGTH(ehci_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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pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
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cmd |= PCI_COMMAND_MASTER;
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pci_write_config_dword(pdev, PCI_COMMAND, cmd);
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}
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/*
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* Create the appropriate control structures to manage
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* a new EHCI host controller.
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*/
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
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{
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pci_dev_t pdev;
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#ifdef CONFIG_PCI_EHCI_DEVICE
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pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
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#else
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pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
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#endif
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if (pdev < 0) {
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printf("EHCI host controller not found\n");
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return -1;
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}
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ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
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return 0;
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}
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/*
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* Destroy the appropriate control structures corresponding
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* the the EHCI host controller.
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*/
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int ehci_hcd_stop(int index)
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{
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return 0;
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}
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#endif /* !CONFIG_IS_ENABLED(DM_USB) */
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#if CONFIG_IS_ENABLED(DM_USB)
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static int ehci_pci_probe(struct udevice *dev)
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{
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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int ret;
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ret = ehci_pci_init(dev, &hccr, &hcor);
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if (ret)
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return ret;
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return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
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}
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static int ehci_pci_remove(struct udevice *dev)
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{
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struct ehci_pci_priv *priv = dev_get_priv(dev);
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int ret;
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ret = ehci_deregister(dev);
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if (ret)
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return ret;
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return ehci_shutdown_phy(dev, &priv->phy);
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}
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static const struct udevice_id ehci_pci_ids[] = {
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{ .compatible = "ehci-pci" },
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{ }
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};
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U_BOOT_DRIVER(ehci_pci) = {
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.name = "ehci_pci",
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.id = UCLASS_USB,
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.probe = ehci_pci_probe,
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.remove = ehci_pci_remove,
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.of_match = ehci_pci_ids,
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.ops = &ehci_usb_ops,
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.plat_auto = sizeof(struct usb_platdata),
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.priv_auto = sizeof(struct ehci_pci_priv),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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static struct pci_device_id ehci_pci_supported[] = {
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{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
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{},
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};
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U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
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#endif /* CONFIG_IS_ENABLED(DM_USB) */
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