usb.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include "i82801gx.h"
 
static void usb_init(struct device *dev)
{
        /* USB Specification says the device must be Bus Master */
        printk(BIOS_DEBUG, "UHCI: Setting up controller.. ");
 
        pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
 
        // Erratum
        pci_write_config8(dev, 0xca, 0x00);
 
        // Yes. Another Erratum
        pci_or_config8(dev, 0xca, 1 << 0);
 
        printk(BIOS_DEBUG, "done.\n");
}
 
static struct device_operations usb_ops = {
        .read_resources         = pci_dev_read_resources,
        .set_resources          = pci_dev_set_resources,
        .enable_resources       = pci_dev_enable_resources,
        .init                   = usb_init,
        .enable                 = i82801gx_enable,
        .ops_pci                = &pci_dev_ops_pci,
};
 
/* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
static const struct pci_driver i82801gb_usb1 __pci_driver = {
        .ops    = &usb_ops,
        .vendor = PCI_VID_INTEL,
        .device = 0x27c8,
};
 
/* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
static const struct pci_driver i82801gb_usb2 __pci_driver = {
        .ops    = &usb_ops,
        .vendor = PCI_VID_INTEL,
        .device = 0x27c9,
};
 
/* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
static const struct pci_driver i82801gb_usb3 __pci_driver = {
        .ops    = &usb_ops,
        .vendor = PCI_VID_INTEL,
        .device = 0x27ca,
};
 
/* 82801GB/GR/GDH/GBM/GHM/GU (ICH7/ICH7R/ICH7DH/ICH7-M/ICH7-M DH/ICH7-U) */
static const struct pci_driver i82801gb_usb4 __pci_driver = {
        .ops    = &usb_ops,
        .vendor = PCI_VID_INTEL,
        .device = 0x27cb,
};