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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;
/* Disable Wake on Disconnect in RMH */
reg32 = RCBA32(RMHWKCTL);
reg32 |= 0x22;
RCBA32(RMHWKCTL) = reg32;
printk(BIOS_DEBUG, "EHCI: Setting up controller.. ");
/* For others, done in MRC. */
#if CONFIG(USE_NATIVE_RAMINIT)
pci_write_config32(dev, 0x84, 0x930c8811);
pci_write_config32(dev, 0x88, 0x24000d30);
pci_write_config32(dev, 0xf4, 0x80408588);
pci_write_config32(dev, 0xf4, 0x80808588);
pci_write_config32(dev, 0xf4, 0x00808588);
pci_write_config32(dev, 0xfc, 0x205b1708);
#endif
reg32 = pci_read_config32(dev, PCI_COMMAND);
reg32 |= PCI_COMMAND_MASTER;
//reg32 |= PCI_COMMAND_SERR;
pci_write_config32(dev, PCI_COMMAND, reg32);
/* For others, done in MRC. */
#if CONFIG(USE_NATIVE_RAMINIT)
struct resource *res;
u8 access_cntl;
access_cntl = pci_read_config8(dev, 0x80);
/* Enable writes to protected registers. */
pci_write_config8(dev, 0x80, access_cntl | 1);
res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (res) {
/* Number of ports and companion controllers. */
reg32 = read32((void *)(uintptr_t)(res->base + 4));
write32((void *)(uintptr_t)(res->base + 4),
(reg32 & 0xfff00000) | 3);
}
/* Restore protection. */
pci_write_config8(dev, 0x80, access_cntl);
#endif
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 const char *usb_ehci_acpi_name(const struct device *dev)
{
switch (dev->path.pci.devfn) {
case PCI_DEVFN(0x1a, 0):
return "EHC2";
case PCI_DEVFN(0x1d, 0):
return "EHC1";
}
return NULL;
}
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,
.acpi_name = usb_ehci_acpi_name,
};
static const unsigned short pci_device_ids[] = { 0x1c26, 0x1c2d, 0x1e26, 0x1e2d,
0 };
static const struct pci_driver pch_usb_ehci __pci_driver = {
.ops = &usb_ehci_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.devices = pci_device_ids,
};
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