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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/io/p9_io_xbus_image_build.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
///
/// @file p9_io_xbus_image_build.C
/// @brief Implements HWP that builds the Hcode image in IO Xbus PPE Sram.
///----------------------------------------------------------------------------
/// *HWP HWP Owner : Chris Steffen <cwsteffen@us.ibm.com>
/// *HWP HPW Backup Owner : Gary Peterson <garyp@us.ibm.com>
/// *HWP FW Owner : Jamie Knight <rjknight@us.ibm.com>
/// *HWP Team : IO
/// *HWP Level : 3
/// *HWP Consumed by : FSP:HB
///----------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Includes
//--------------------------------------------------------------------------
#include <p9_io_xbus_image_build.H>
#include "p9_xip_image.h"
//---------------------------------------------------------------------------
fapi2::ReturnCode extractPpeImgXbus(void* const iImagePtr, uint8_t*& oPpeImgPtr, uint32_t& oSize)
{
FAPI_IMP("Entering getXbusImageFromHwImage.");
P9XipSection ppeSection;
ppeSection.iv_offset = 0;
ppeSection.iv_size = 0;
FAPI_ASSERT(iImagePtr != NULL ,
fapi2::P9_IO_PPE_OBUS_IMG_PTR_ERROR().set_HW_IMG_PTR(iImagePtr),
"Bad pointer to HW Image.");
// Pulls the IO PPE Section from the HW/XIP Image
// XIP(Execution In Place) -- Points to Seeprom
FAPI_TRY(p9_xip_get_section(iImagePtr, P9_XIP_SECTION_HW_IOPPE, &ppeSection));
// Point to the I/O PPE Section in the HW/XIP Image
oPpeImgPtr = ppeSection.iv_offset + (uint8_t*)(iImagePtr);
// From the I/O Section, lets pull the IOO Nvlink Image.
FAPI_TRY(p9_xip_get_section(oPpeImgPtr, P9_XIP_SECTION_IOPPE_IOF, &ppeSection));
// Point to the IOO PPE Image of the I/O PPE Section
oPpeImgPtr = ppeSection.iv_offset + (uint8_t*)(oPpeImgPtr);
// Set the Size of the IOO Image
oSize = ppeSection.iv_size;
fapi_try_exit:
FAPI_IMP("Exiting getXbusImageFromHwImage.");
return fapi2::current_err;
}
//---------------------------------------------------------------------------
fapi2::ReturnCode scomWrite(CONST_PROC& iTgt, const uint64_t iAddr, const uint64_t iData)
{
fapi2::buffer<uint64_t> data64(iData);
// Xscom -- Scom from core in Hostboot mode
return fapi2::putScom(iTgt, iAddr, data64);
}
//---------------------------------------------------------------------------
fapi2::ReturnCode p9_io_xbus_image_build(CONST_PROC& iTgt, void* const iHwImagePtr)
{
FAPI_IMP("Entering p9_io_xbus_image_build.");
/*
* Currently a NOP as we do not have a POR to use the xbus image.
*
const uint64_t SRAM_BASE_ADDR = 0xFFFF000000000000ull;
const uint64_t AUTOINC_EN = 0x8000000000000000ull;
const uint64_t AUTOINC_DIS = 0x0000000000000000ull;
const uint64_t HARD_RESET = 0x6000000000000000ull; // xcr cmd=110
const uint64_t RESUME_FROM_HALT = 0x2000000000000000ull; // xcr cmd=010
// PPE Address
const uint64_t BASE_ADDR = 0x0000000006010840ull;
const uint64_t MEM_ARB_CSAR = 0x000000000000000Dull | BASE_ADDR; // Sram Address Reg
const uint64_t MEM_ARB_SCR = 0x000000000000000Aull | BASE_ADDR; // Sram Source Control Reg
const uint64_t MEM_ARB_CSDR = 0x000000000000000Eull | BASE_ADDR; // Sram Data Reg
const uint64_t XCR_NONE = 0x0000000000000010ull | BASE_ADDR; // External Control Reg
uint64_t data = 0;
uint8_t* pPpeImg = NULL;
uint32_t imgSize = 0;
// Get vector of xbus units from the processor
auto xbusUnits = iTgt.getChildren<fapi2::TARGET_TYPE_XBUS>();
// Make sure we have functional xbus units before we load the ppe
if(!xbusUnits.empty())
{
FAPI_TRY(extractPpeImgXbus(iHwImagePtr, pPpeImg, imgSize), "Extract PPE Image Failed.");
// PPE Reset
FAPI_TRY(scomWrite(iTgt, XCR_NONE, HARD_RESET), "Hard Reset Failed.");
// Set PPE Base Address
FAPI_TRY(scomWrite(iTgt, MEM_ARB_CSAR, SRAM_BASE_ADDR), "Set Base Address Failed.");
// Set PPE into Autoincrement Mode
FAPI_TRY(scomWrite(iTgt, MEM_ARB_SCR, AUTOINC_EN), "Auto-Increment Enable Failed.");
for(uint32_t i = 0; i < imgSize; i += 8)
{
data = (((uint64_t) * (pPpeImg + i + 0) << 56) & 0xFF00000000000000ull) |
(((uint64_t) * (pPpeImg + i + 1) << 48) & 0x00FF000000000000ull) |
(((uint64_t) * (pPpeImg + i + 2) << 40) & 0x0000FF0000000000ull) |
(((uint64_t) * (pPpeImg + i + 3) << 32) & 0x000000FF00000000ull) |
(((uint64_t) * (pPpeImg + i + 4) << 24) & 0x00000000FF000000ull) |
(((uint64_t) * (pPpeImg + i + 5) << 16) & 0x0000000000FF0000ull) |
(((uint64_t) * (pPpeImg + i + 6) << 8) & 0x000000000000FF00ull) |
(((uint64_t) * (pPpeImg + i + 7) << 0) & 0x00000000000000FFull);
// Write Data, as the address will be autoincremented.
FAPI_TRY(scomWrite(iTgt, MEM_ARB_CSDR, data), "Data Write Failed.");
}
// Disable Auto Increment
FAPI_TRY(scomWrite(iTgt, MEM_ARB_SCR, AUTOINC_DIS), "Auto-Increment Disable Failed.");
// PPE Reset
FAPI_TRY(scomWrite(iTgt, XCR_NONE, HARD_RESET), "Hard Reset Failed.");
// PPE Resume From Halt
FAPI_TRY(scomWrite(iTgt, XCR_NONE, RESUME_FROM_HALT), "Resume From Halt Failed.");
}
else
{
FAPI_INF("No functional xbus units found. Skipping Xbus PPE Load...");
}
fapi_try_exit:
*/
FAPI_IMP("Exit p9_io_xbus_image_build.");
return fapi2::current_err;
}
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