/** @file
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Initializes PCH CIO2 device ACPI data.
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <PchInit.h>
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/**
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Update ASL definitions for CIO2 device.
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@retval EFI_SUCCESS The function completed successfully
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**/
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EFI_STATUS
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UpdateCio2AcpiData (
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VOID
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)
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{
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UINT32 Index;
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PCH_STEPPING PchStep;
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DEBUG ((DEBUG_INFO, "UpdateCio2AcpiData() Start\n"));
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PchStep = PchStepping ();
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//if CIO2 is enabled as ACPI device then update its ACPI data
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if (PchStep >= PchLpC0) {
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mPchNvsAreaProtocol.Area->Cio2EnabledAsAcpiDevice = 0;
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DEBUG ((DEBUG_INFO, "UpdateCio2AcpiData() Cio2 has not been enabled as ACPI device\n"));
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} else {
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mPchNvsAreaProtocol.Area->Cio2EnabledAsAcpiDevice = 0;
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if (mPchConfigHob->Cio2.DeviceEnable == 1) {
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mPchNvsAreaProtocol.Area->Cio2EnabledAsAcpiDevice = 1;
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for (Index = 0; Index < mPchConfigHob->Interrupt.NumOfDevIntConfig; Index++) {
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if ((mPchConfigHob->Interrupt.DevIntConfig[Index].Device == PCI_DEVICE_NUMBER_PCH_CIO2) &&
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(mPchConfigHob->Interrupt.DevIntConfig[Index].Function == PCI_FUNCTION_NUMBER_PCH_CIO2)) {
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mPchNvsAreaProtocol.Area->Cio2IrqNumber = mPchConfigHob->Interrupt.DevIntConfig[Index].Irq;
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DEBUG ((DEBUG_INFO, "UpdateCio2AcpiData() Cio2 has been enabled as ACPI device. Irq number = 0x%x\n", mPchConfigHob->Interrupt.DevIntConfig[Index].Irq));
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break;
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}
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}
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}
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}
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DEBUG ((DEBUG_INFO, "UpdateCio2AcpiData() End\n"));
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return EFI_SUCCESS;
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}
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