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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <device/pci.h>
#include <soc/pci_devs.h>
#include <soc/xhci.h>
#include <types.h>
static uint8_t *get_xhci_bar(void)
{
const struct resource *res;
res = probe_resource(PCH_DEV_XHCI, PCI_BASE_ADDRESS_0);
if (!res) {
printk(BIOS_ERR, "XHCI BAR is not found\n");
return NULL;
}
return (void *)(uintptr_t)res->base;
}
void write_usb_oc_mapping(const struct usb_oc_mapping *config, uint8_t pins)
{
uint8_t *mbar = get_xhci_bar();
uint8_t i;
if (mbar == NULL) {
printk(BIOS_ERR, "XHCI BAR is invalid, skip USB OC mapping configuration\n");
return;
}
for (i = 0; i < pins; i++)
write32(mbar + config[i].pin, config[i].port);
}
void lock_oc_cfg(bool lock)
{
uint32_t cfg = pci_read_config32(PCH_DEV_XHCI, SYS_BUS_CFG2);
if (lock)
cfg |= OCCFGDONE;
else
cfg &= ~(OCCFGDONE);
pci_write_config32(PCH_DEV_XHCI, SYS_BUS_CFG2, cfg);
}
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