QuarkPlatformPkg/Platform/Dxe/Setup/QNCRegTable.c

/** @file
Register initialization table for Ich.

Copyright (c) 2013-2015 Intel Corporation.

This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.


**/


#include "CommonHeader.h"

VOID
PlatformInitQNCRegs (
  VOID
  )
{
  //
  // All devices on bus 0.
  // Device 0:
  //    FNC 0: Host Bridge
  // Device 20:
  //    FNC 0: IOSF2AHB Bridge
  // Device 21:
  //    FNC 0: IOSF2AHB Bridge
  // Device 23:
  //    FNC 0: PCIe Port 0
  // Device 24:
  //    FNC 0: PCIe Port 1

  // Device 31:
  //    FNC 0: PCI-LPC Bridge
  //
  S3PciWrite32 (PCI_LIB_ADDRESS (PCI_BUS_NUMBER_QNC, PCI_DEVICE_NUMBER_QNC_LPC, PCI_FUNCTION_NUMBER_QNC_LPC, R_QNC_LPC_FWH_BIOS_DEC),
                B_QNC_LPC_FWH_BIOS_DEC_F0 | B_QNC_LPC_FWH_BIOS_DEC_F8 |
                B_QNC_LPC_FWH_BIOS_DEC_E0 | B_QNC_LPC_FWH_BIOS_DEC_E8 |
                B_QNC_LPC_FWH_BIOS_DEC_D0 | B_QNC_LPC_FWH_BIOS_DEC_D8 |
                B_QNC_LPC_FWH_BIOS_DEC_C0 | B_QNC_LPC_FWH_BIOS_DEC_C8
                );

  //
  // Program SCI Interrupt for IRQ9
  //
  S3PciWrite8 (PCI_LIB_ADDRESS (PCI_BUS_NUMBER_QNC, PCI_DEVICE_NUMBER_QNC_LPC, PCI_FUNCTION_NUMBER_QNC_LPC, R_QNC_LPC_ACTL),
               V_QNC_LPC_ACTL_SCIS_IRQ9
               );

  //
  // Program Quark Interrupt Route Registers
  //
  S3MmioWrite16 ((UINTN)PcdGet64(PcdRcbaMmioBaseAddress) + R_QNC_RCRB_AGENT0IR,
             PcdGet16(PcdQuarkAgent0IR)
             );
  S3MmioWrite16 ((UINTN)PcdGet64(PcdRcbaMmioBaseAddress) + R_QNC_RCRB_AGENT1IR,
             PcdGet16(PcdQuarkAgent1IR)
             );
  S3MmioWrite16 ((UINTN)PcdGet64(PcdRcbaMmioBaseAddress) + R_QNC_RCRB_AGENT2IR,
             PcdGet16(PcdQuarkAgent2IR)
             );
  S3MmioWrite16 ((UINTN)PcdGet64(PcdRcbaMmioBaseAddress) + R_QNC_RCRB_AGENT3IR,
             PcdGet16(PcdQuarkAgent3IR)
             );

  //
  // Program SVID and SID for QNC PCI devices. In order to boost performance, we
  // combine two 16 bit PCI_WRITE into one 32 bit PCI_WRITE. The programmed LPC SVID
  // will reflect on all internal devices's SVID registers
  //
  S3PciWrite32 (PCI_LIB_ADDRESS (PCI_BUS_NUMBER_QNC, PCI_DEVICE_NUMBER_QNC_LPC, PCI_FUNCTION_NUMBER_QNC_LPC, R_EFI_PCI_SVID),
                (UINT32)(V_INTEL_VENDOR_ID + (QUARK_V_LPC_DEVICE_ID_0 << 16))
                );

  //
  // Write once on Element Self Description Register before OS boot
  //
  QNCMmio32And (PcdGet64(PcdRcbaMmioBaseAddress), 0x04, 0xFF00FFFF);

  return;
}