diff options
Diffstat (limited to 'roms/u-boot/drivers/usb/host/ehci-pci.c')
| -rw-r--r-- | roms/u-boot/drivers/usb/host/ehci-pci.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/usb/host/ehci-pci.c b/roms/u-boot/drivers/usb/host/ehci-pci.c new file mode 100644 index 000000000..4f711de7d --- /dev/null +++ b/roms/u-boot/drivers/usb/host/ehci-pci.c @@ -0,0 +1,178 @@ +// 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 <init.h> +#include <log.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; + struct phy phy; +}; + +#if CONFIG_IS_ENABLED(DM_USB) +static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, + struct ehci_hcor **ret_hcor) +{ + struct ehci_pci_priv *priv = dev_get_priv(dev); + struct ehci_hccr *hccr; + struct ehci_hcor *hcor; + int ret; + u32 cmd; + + ret = ehci_setup_phy(dev, &priv->phy, 0); + if (ret) + return ret; + + 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); + + return 0; +} + +#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 /* !CONFIG_IS_ENABLED(DM_USB) */ + +#if CONFIG_IS_ENABLED(DM_USB) +static int ehci_pci_probe(struct udevice *dev) +{ + struct ehci_hccr *hccr; + struct ehci_hcor *hcor; + int ret; + + ret = ehci_pci_init(dev, &hccr, &hcor); + if (ret) + return ret; + + return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); +} + +static int ehci_pci_remove(struct udevice *dev) +{ + struct ehci_pci_priv *priv = dev_get_priv(dev); + int ret; + + ret = ehci_deregister(dev); + if (ret) + return ret; + + return ehci_shutdown_phy(dev, &priv->phy); +} + +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_pci_remove, + .of_match = ehci_pci_ids, + .ops = &ehci_usb_ops, + .plat_auto = sizeof(struct usb_plat), + .priv_auto = 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_IS_ENABLED(DM_USB) */ |