enable_usbdebug.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
// Use simple device model for this file even in ramstage
#define __SIMPLE_DEVICE__
 
#include <stdint.h>
#include <device/pci_ops.h>
#include <device/pci_ehci.h>
#include <device/pci_def.h>
#include <soc/pci_devs.h>
#include <soc/southbridge.h>
#include <amdblocks/acpimmio.h>
 
pci_devfn_t pci_ehci_dbg_dev(unsigned int hcd_idx)
{
        pm_io_write8(PM_USB_ENABLE, PM_USB_ALL_CONTROLLERS);
        return SOC_EHCI1_DEV;
}
 
void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port)
{
        u32 reg32, value;
 
        value = (port & 0x3) << DEBUG_PORT_SELECT_SHIFT;
        value |= DEBUG_PORT_ENABLE;
        reg32 = pci_read_config32(SOC_EHCI1_DEV, EHCI_HUB_CONFIG4);
        reg32 &= ~DEBUG_PORT_MASK;
        reg32 |= value;
        pci_write_config32(SOC_EHCI1_DEV, EHCI_HUB_CONFIG4, reg32);
}