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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_ids.h>
#include "pch.h"
#include <device/pci_ehci.h>
#include <device/mmio.h>
#include <device/pci_ops.h>
static void usb_ehci_init(struct device *dev)
{
u32 reg32;
struct resource *res;
u8 access_cntl;
/* Disable Wake on Disconnect in RMH */
reg32 = RCBA32(0x35b0);
reg32 |= 0x22;
RCBA32(0x35b0) = reg32;
printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
pci_write_config32(dev, 0x84, 0x130c8911);
pci_write_config32(dev, 0x88, 0xa0);
pci_write_config32(dev, 0xf4, 0x80808588);
pci_write_config32(dev, 0xf4, 0x00808588);
pci_write_config32(dev, 0xf4, 0x00808588);
pci_write_config32(dev, 0xfc, 0x301b1728);
pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
access_cntl = pci_read_config8(dev, 0x80);
/* Enable writes to protected registers. */
pci_write_config8(dev, 0x80, access_cntl | 1);
res = probe_resource(dev, PCI_BASE_ADDRESS_0);
if (res) {
/* Number of ports and companion controllers. */
reg32 = read32((u32 *)(uintptr_t)(res->base + 4));
write32((u32 *)(uintptr_t)(res->base + 4),
(reg32 & 0xfff00000) | 2);
}
/* Restore protection. */
pci_write_config8(dev, 0x80, access_cntl);
printk(BIOS_DEBUG, "done.\n");
}
static void usb_ehci_set_subsystem(struct device *dev, unsigned int vendor,
unsigned int device)
{
u8 access_cntl;
access_cntl = pci_read_config8(dev, 0x80);
/* Enable writes to protected registers. */
pci_write_config8(dev, 0x80, access_cntl | 1);
pci_dev_set_subsystem(dev, vendor, device);
/* Restore protection. */
pci_write_config8(dev, 0x80, access_cntl);
}
static struct pci_operations lops_pci = {
.set_subsystem = &usb_ehci_set_subsystem,
};
static struct device_operations usb_ehci_ops = {
.read_resources = pci_ehci_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = usb_ehci_init,
.ops_pci = &lops_pci,
};
static const unsigned short pci_device_ids[] = {
PCI_DID_INTEL_IBEXPEAK_EHCI_1,
PCI_DID_INTEL_IBEXPEAK_EHCI_2,
0
};
static const struct pci_driver pch_usb_ehci __pci_driver = {
.ops = &usb_ehci_ops,
.vendor = PCI_VID_INTEL,
.devices = pci_device_ids,
};
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