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// SPDX-License-Identifier: GPL-2.0
/*-
* Copyright (c) 2007-2008, Juniper Networks, Inc.
* All rights reserved.
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <pci.h>
#include <usb.h>
#include <asm/io.h>
#include "ehci.h"
/* Information about a USB port */
struct ehci_pci_priv {
struct ehci_ctrl ehci;
};
#ifdef CONFIG_DM_USB
static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
struct ehci_hcor **ret_hcor)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
u32 cmd;
hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
hcor = (struct ehci_hcor *)((uintptr_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n",
(ulong)hccr, (ulong)hcor,
(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
dm_pci_write_config32(dev, PCI_COMMAND, cmd);
}
#else
#ifdef CONFIG_PCI_EHCI_DEVICE
static struct pci_device_id ehci_pci_ids[] = {
/* Please add supported PCI EHCI controller ids here */
{0x1033, 0x00E0}, /* NEC */
{0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
{0x12D8, 0x400F}, /* Pericom */
{0, 0}
};
#endif
static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
struct ehci_hcor **ret_hcor)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
u32 cmd;
hccr = (struct ehci_hccr *)pci_map_bar(pdev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
hcor = (struct ehci_hcor *)((uintptr_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
(u32)hccr, (u32)hcor,
(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pci_write_config_dword(pdev, PCI_COMMAND, cmd);
}
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
{
pci_dev_t pdev;
#ifdef CONFIG_PCI_EHCI_DEVICE
pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
#else
pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
#endif
if (pdev < 0) {
printf("EHCI host controller not found\n");
return -1;
}
ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
return 0;
}
/*
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
int ehci_hcd_stop(int index)
{
return 0;
}
#endif /* nCONFIG_DM_USB */
#ifdef CONFIG_DM_USB
static int ehci_pci_probe(struct udevice *dev)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
ehci_pci_init(dev, &hccr, &hcor);
return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
}
static const struct udevice_id ehci_pci_ids[] = {
{ .compatible = "ehci-pci" },
{ }
};
U_BOOT_DRIVER(ehci_pci) = {
.name = "ehci_pci",
.id = UCLASS_USB,
.probe = ehci_pci_probe,
.remove = ehci_deregister,
.of_match = ehci_pci_ids,
.ops = &ehci_usb_ops,
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
static struct pci_device_id ehci_pci_supported[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
{},
};
U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
#endif /* CONFIG_DM_USB */
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