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/*
* Copyright 2012 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
/* Machine-generated file; do not edit. */
#ifndef __ARCH_TRIO_PCIE_INTFC_H__
#define __ARCH_TRIO_PCIE_INTFC_H__
#include <arch/abi.h>
#include <arch/trio_pcie_intfc_def.h>
#ifndef __ASSEMBLER__
/*
* Port Configuration.
* Configuration of the PCIe Port
*/
__extension__
typedef union
{
struct
{
#ifndef __BIG_ENDIAN__
/* Provides the state of the strapping pins for this port. */
uint_reg_t strap_state : 3;
/* Reserved. */
uint_reg_t __reserved_0 : 1;
/*
* When 1, the device type will be overridden using OVD_DEV_TYPE_VAL.
* When 0, the device type is determined based on the STRAP_STATE.
*/
uint_reg_t ovd_dev_type : 1;
/* Provides the device type when OVD_DEV_TYPE is 1. */
uint_reg_t ovd_dev_type_val : 4;
/* Determines how link is trained. */
uint_reg_t train_mode : 2;
/* Reserved. */
uint_reg_t __reserved_1 : 1;
/*
* For PCIe, used to flip physical RX lanes that were not properly wired.
* This is not the same as lane reversal which is handled automatically
* during link training. When 0, RX Lane0 must be wired to the link
* partner (either to its Lane0 or it's LaneN). When RX_LANE_FLIP is 1,
* the highest numbered lane for this port becomes Lane0 and Lane0 does
* NOT have to be wired to the link partner.
*/
uint_reg_t rx_lane_flip : 1;
/*
* For PCIe, used to flip physical TX lanes that were not properly wired.
* This is not the same as lane reversal which is handled automatically
* during link training. When 0, TX Lane0 must be wired to the link
* partner (either to its Lane0 or it's LaneN). When TX_LANE_FLIP is 1,
* the highest numbered lane for this port becomes Lane0 and Lane0 does
* NOT have to be wired to the link partner.
*/
uint_reg_t tx_lane_flip : 1;
/*
* For StreamIO port, configures the width of the port when TRAIN_MODE is
* not STRAP.
*/
uint_reg_t stream_width : 2;
/*
* For StreamIO port, configures the rate of the port when TRAIN_MODE is
* not STRAP.
*/
uint_reg_t stream_rate : 2;
/* Reserved. */
uint_reg_t __reserved_2 : 46;
#else /* __BIG_ENDIAN__ */
uint_reg_t __reserved_2 : 46;
uint_reg_t stream_rate : 2;
uint_reg_t stream_width : 2;
uint_reg_t tx_lane_flip : 1;
uint_reg_t rx_lane_flip : 1;
uint_reg_t __reserved_1 : 1;
uint_reg_t train_mode : 2;
uint_reg_t ovd_dev_type_val : 4;
uint_reg_t ovd_dev_type : 1;
uint_reg_t __reserved_0 : 1;
uint_reg_t strap_state : 3;
#endif
};
uint_reg_t word;
} TRIO_PCIE_INTFC_PORT_CONFIG_t;
/*
* Port Status.
* Status of the PCIe Port. This register applies to the StreamIO port when
* StreamIO is enabled.
*/
__extension__
typedef union
{
struct
{
#ifndef __BIG_ENDIAN__
/*
* Indicates the DL state of the port. When 1, the port is up and ready
* to receive traffic.
*/
uint_reg_t dl_up : 1;
/*
* Indicates the number of times the link has gone down. Clears on read.
*/
uint_reg_t dl_down_cnt : 7;
/* Indicates the SERDES PLL has spun up and is providing a valid clock. */
uint_reg_t clock_ready : 1;
/* Reserved. */
uint_reg_t __reserved_0 : 7;
/* Device revision ID. */
uint_reg_t device_rev : 8;
/* Link state (PCIe). */
uint_reg_t ltssm_state : 6;
/* Link power management state (PCIe). */
uint_reg_t pm_state : 3;
/* Reserved. */
uint_reg_t __reserved_1 : 31;
#else /* __BIG_ENDIAN__ */
uint_reg_t __reserved_1 : 31;
uint_reg_t pm_state : 3;
uint_reg_t ltssm_state : 6;
uint_reg_t device_rev : 8;
uint_reg_t __reserved_0 : 7;
uint_reg_t clock_ready : 1;
uint_reg_t dl_down_cnt : 7;
uint_reg_t dl_up : 1;
#endif
};
uint_reg_t word;
} TRIO_PCIE_INTFC_PORT_STATUS_t;
/*
* Transmit FIFO Control.
* Contains TX FIFO thresholds. These registers are for diagnostics purposes
* only. Changing these values causes undefined behavior.
*/
__extension__
typedef union
{
struct
{
#ifndef __BIG_ENDIAN__
/*
* Almost-Empty level for TX0 data. Typically set to at least
* roundup(38.0*M/N) where N=tclk frequency and M=MAC symbol rate in MHz
* for a x4 port (250MHz).
*/
uint_reg_t tx0_data_ae_lvl : 7;
/* Reserved. */
uint_reg_t __reserved_0 : 1;
/* Almost-Empty level for TX1 data. */
uint_reg_t tx1_data_ae_lvl : 7;
/* Reserved. */
uint_reg_t __reserved_1 : 1;
/* Almost-Full level for TX0 data. */
uint_reg_t tx0_data_af_lvl : 7;
/* Reserved. */
uint_reg_t __reserved_2 : 1;
/* Almost-Full level for TX1 data. */
uint_reg_t tx1_data_af_lvl : 7;
/* Reserved. */
uint_reg_t __reserved_3 : 1;
/* Almost-Full level for TX0 info. */
uint_reg_t tx0_info_af_lvl : 5;
/* Reserved. */
uint_reg_t __reserved_4 : 3;
/* Almost-Full level for TX1 info. */
uint_reg_t tx1_info_af_lvl : 5;
/* Reserved. */
uint_reg_t __reserved_5 : 3;
/*
* This register provides performance adjustment for high bandwidth
* flows. The MAC will assert almost-full to TRIO if non-posted credits
* fall below this level. Note that setting this larger than the initial
* PORT_CREDIT.NPH value will cause READS to never be sent. If the
* initial credit value from the link partner is smaller than this value
* when the link comes up, the value will be reset to the initial credit
* value to prevent lockup.
*/
uint_reg_t min_np_credits : 8;
/*
* This register provides performance adjustment for high bandwidth
* flows. The MAC will assert almost-full to TRIO if posted credits fall
* below this level. Note that setting this larger than the initial
* PORT_CREDIT.PH value will cause WRITES to never be sent. If the
* initial credit value from the link partner is smaller than this value
* when the link comes up, the value will be reset to the initial credit
* value to prevent lockup.
*/
uint_reg_t min_p_credits : 8;
#else /* __BIG_ENDIAN__ */
uint_reg_t min_p_credits : 8;
uint_reg_t min_np_credits : 8;
uint_reg_t __reserved_5 : 3;
uint_reg_t tx1_info_af_lvl : 5;
uint_reg_t __reserved_4 : 3;
uint_reg_t tx0_info_af_lvl : 5;
uint_reg_t __reserved_3 : 1;
uint_reg_t tx1_data_af_lvl : 7;
uint_reg_t __reserved_2 : 1;
uint_reg_t tx0_data_af_lvl : 7;
uint_reg_t __reserved_1 : 1;
uint_reg_t tx1_data_ae_lvl : 7;
uint_reg_t __reserved_0 : 1;
uint_reg_t tx0_data_ae_lvl : 7;
#endif
};
uint_reg_t word;
} TRIO_PCIE_INTFC_TX_FIFO_CTL_t;
#endif /* !defined(__ASSEMBLER__) */
#endif /* !defined(__ARCH_TRIO_PCIE_INTFC_H__) */
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