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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: chips/p9/procedures/hwp/io/p9_io_xbus_scominit.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* EKB Project */
/* */
/* COPYRIGHT 2015,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* IBM_PROLOG_END_TAG */
///
/// @file p9_io_xbus_scominit.C
/// @brief Invoke XBUS initfile
///
//----------------------------------------------------------------------------
// *HWP HWP Owner : Chris Steffen <cwsteffen@us.ibm.com>
// *HWP HWP Backup Owner: Gary Peterson <garyp@us.ibm.com>
// *HWP FW Owner : Sumit Kumar <sumit_kumar@in.ibm.com>
// *HWP Team : IO
// *HWP Level : 2
// *HWP Consumed by : FSP:HB
//----------------------------------------------------------------------------
//
// @verbatim
// High-level procedure flow:
//
// Invoke XBUS scominit file.
//
// Procedure Prereq:
// - System clocks are running.
// @endverbatim
//----------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------
#include <p9_io_regs.H>
#include <p9_io_scom.H>
#include <p9_io_xbus_scominit.H>
#include <p9_xbus_g0_scom.H>
#include <p9_xbus_g1_scom.H>
enum
{
ENUM_ATTR_XBUS_GROUP_0,
ENUM_ATTR_XBUS_GROUP_1
};
//------------------------------------------------------------------------------
// Constant definitions
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Function definitions
//------------------------------------------------------------------------------
/**
* @brief Sets ATTR_IO_XBUS_MASTER_MODE based on fabric chip id and fabric group id
* @param[in] i_target Fapi2 Target
* @param[in] i_ctarget Fapi2 Connected Target
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode set_rx_master_mode(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_ctarget );
/**
* @brief Gets the value of the ATTR_PROC_FABRIC_GROUP_ID and passes back by reference
* @param[in] i_target Fapi2 Target
* @param[in] o_group_id Group ID
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode p9_get_proc_fabric_group_id(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
uint8_t& o_group_id );
/**
* @brief Gets the value of the ATTR_PROC_FABRIC_CHIP_ID and passes back by refernce
* @param[in] i_target Fapi2 Target
* @param[in] o_chip_id Chip ID
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode p9_get_proc_fabric_chip_id(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
uint8_t& o_chip_id );
/**
* @brief HWP that calls the XBUS SCOM initfiles
* Should be called for all valid/connected XBUS endpoints
* @param[in] i_target Reference to XBUS chiplet target
* @param[in] i_connected_target Reference to connected XBUS chiplet target
* @param[in] i_group Reference to XBUS group-0/1
* @return FAPI2_RC_SUCCESS on success, error otherwise
*/
fapi2::ReturnCode p9_io_xbus_scominit(
const fapi2::Target<fapi2::TARGET_TYPE_XBUS>& i_target,
const fapi2::Target<fapi2::TARGET_TYPE_XBUS>& i_connected_target,
const uint8_t i_group)
{
// mark HWP entry
FAPI_INF("p9_io_xbus_scominit: Entering ...");
const uint8_t LANE_00 = 0;
fapi2::ReturnCode rc = fapi2::FAPI2_RC_SUCCESS;
// get system target
const fapi2::Target<fapi2::TARGET_TYPE_SYSTEM> l_system_target;
// assert IO reset to power-up bus endpoint logic
// read-modify-write, set single reset bit (HW auto-clears)
// on writeback
FAPI_TRY( io::rmw( EDIP_RX_IORESET, i_target, i_group, LANE_00, 1 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_TX_IORESET, i_target, i_group, LANE_00, 1 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_RX_IORESET, i_connected_target, i_group, LANE_00, 1 ),
"I/O Xbus Scominit: Connected Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_TX_IORESET, i_connected_target, i_group, LANE_00, 1 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
// Calculated HW Delay needed based on counter size and clock speed.
// 50us -- Based on Counter Size, 40us minimum
// 1 Million sim cycles -- Based on sim learning
FAPI_TRY( fapi2::delay( 50000, 1000000 ) );
FAPI_TRY( io::rmw( EDIP_RX_IORESET, i_target, i_group, LANE_00, 0 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_TX_IORESET, i_target, i_group, LANE_00, 0 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_RX_IORESET, i_connected_target, i_group, LANE_00, 0 ),
"I/O Xbus Scominit: Connected Set Reset Hard Failed." );
FAPI_TRY( io::rmw( EDIP_TX_IORESET, i_connected_target, i_group, LANE_00, 0 ),
"I/O Xbus Scominit: Primary Set Reset Hard Failed." );
// Set rx master/slave attribute prior to calling the scominit procedures.
// The scominit procedure will reference the attribute to set the register field.
FAPI_TRY( set_rx_master_mode( i_target, i_connected_target ),
"Setting Rx Master Mode Attribute Failed." );
switch(i_group)
{
case ENUM_ATTR_XBUS_GROUP_0:
FAPI_INF("Group 0:Invoke FAPI procedure core: input_target");
FAPI_EXEC_HWP(rc, p9_xbus_g0_scom, i_target, l_system_target);
FAPI_INF("Group 0:Invoke FAPI procedure core: connected_target");
FAPI_EXEC_HWP(rc, p9_xbus_g0_scom, i_connected_target, l_system_target);
break;
case ENUM_ATTR_XBUS_GROUP_1:
FAPI_INF("Group 1:Invoke FAPI procedure core: input_target");
FAPI_EXEC_HWP(rc, p9_xbus_g1_scom, i_target, l_system_target);
FAPI_INF("Group 1:Invoke FAPI procedure core: connected_target");
FAPI_EXEC_HWP(rc, p9_xbus_g1_scom, i_connected_target, l_system_target);
break;
}
// mark HWP exit
FAPI_INF("p9_io_xbus_scominit: ...Exiting");
fapi_try_exit:
return fapi2::current_err;
}
/**
* @brief Sets ATTR_IO_XBUS_MASTER_MODE based on fabric chip id and fabric group id
* @param[in] i_target Fapi2 Target
* @param[in] i_ctarget Fapi2 Connected Target
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode set_rx_master_mode(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_ctarget )
{
FAPI_IMP( "I/O Xbus Scominit: Set Master Mode Enter." );
uint8_t l_primary_group_id = 0;
uint8_t l_primary_chip_id = 0;
uint32_t l_primary_id = 0;
uint8_t l_primary_attr = 0;
uint8_t l_connected_group_id = 0;
uint8_t l_connected_chip_id = 0;
uint32_t l_connected_id = 0;
uint8_t l_connected_attr = 0;
FAPI_TRY( p9_get_proc_fabric_group_id( i_target, l_primary_group_id ) );
FAPI_TRY( p9_get_proc_fabric_group_id( i_ctarget, l_connected_group_id ) );
FAPI_TRY( p9_get_proc_fabric_chip_id( i_target, l_primary_chip_id ) );
FAPI_TRY( p9_get_proc_fabric_chip_id( i_ctarget, l_connected_chip_id ) );
l_primary_id = ( (uint32_t)l_primary_group_id << 8 ) + (uint32_t)l_primary_chip_id;
l_connected_id = ( (uint32_t)l_connected_group_id << 8 ) + (uint32_t)l_connected_chip_id;
FAPI_DBG( "I/O Xbus Scominit: Target ID(%d) Connected ID(%d)", l_primary_id, l_connected_id );
if( l_primary_id < l_connected_id )
{
l_primary_attr = fapi2::ENUM_ATTR_IO_XBUS_MASTER_MODE_TRUE;
l_connected_attr = fapi2::ENUM_ATTR_IO_XBUS_MASTER_MODE_FALSE;
}
else
{
l_primary_attr = fapi2::ENUM_ATTR_IO_XBUS_MASTER_MODE_FALSE;
l_connected_attr = fapi2::ENUM_ATTR_IO_XBUS_MASTER_MODE_TRUE;
}
FAPI_TRY( FAPI_ATTR_SET( fapi2::ATTR_IO_XBUS_MASTER_MODE, i_target, l_primary_attr ),
"I/O Xbus Scominit: Set Primary Master Mode Attribute Failed." );
FAPI_TRY( FAPI_ATTR_SET( fapi2::ATTR_IO_XBUS_MASTER_MODE, i_ctarget, l_connected_attr ),
"I/O Xbus Scominit: Set Connected Master Mode Attribute Failed." );
fapi_try_exit:
FAPI_IMP( "I/O Xbus Scominit: Set Master Mode Exit." );
return fapi2::current_err;
}
/**
* @brief Gets the value of the ATTR_PROC_FABRIC_GROUP_ID and passes back by reference
* @param[in] i_target Fapi2 Target
* @param[out] o_group_id Group ID
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode p9_get_proc_fabric_group_id(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
uint8_t& o_group_id)
{
FAPI_IMP("I/O Xbus Scominit: Get Proc Group Start.");
fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP> l_proc =
i_target.getParent<fapi2::TARGET_TYPE_PROC_CHIP>();
// Retrieve node attribute
FAPI_TRY( FAPI_ATTR_GET( fapi2::ATTR_PROC_FABRIC_GROUP_ID, l_proc, o_group_id ),
"(PROC): Error getting ATTR_PROC_FABRIC_GROUP_ID, l_rc 0x%.8X",
(uint64_t)fapi2::current_err );
fapi_try_exit:
FAPI_IMP("I/O Xbus Scominit: Get Proc Group Exit.");
return fapi2::current_err;
}
/**
* @brief Gets the value of the ATTR_PROC_FABRIC_CHIP_ID and passes back by refernce
* @param[in] i_target Fapi2 Target
* @param[out] o_chip_id Chip ID
* @retval ReturnCode Fapi2 ReturnCode
*/
fapi2::ReturnCode p9_get_proc_fabric_chip_id(
const fapi2::Target< fapi2::TARGET_TYPE_XBUS >& i_target,
uint8_t& o_chip_id)
{
FAPI_IMP("I/O Xbus Scominit: Get Proc Chip Id Start.");
fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP> l_proc =
i_target.getParent<fapi2::TARGET_TYPE_PROC_CHIP>();
// Retrieve pos ID attribute
FAPI_TRY( FAPI_ATTR_GET( fapi2::ATTR_PROC_FABRIC_CHIP_ID, l_proc, o_chip_id ),
"(PROC): Error getting ATTR_PROC_FABRIC_CHIP_ID, l_rc 0x%.8X",
(uint64_t)fapi2::current_err );
fapi_try_exit:
FAPI_IMP("I/O Xbus Scominit: Get Proc Chip Id Exit.");
return fapi2::current_err;
}
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