dc4ee6ca91
make use of it where possible. This primarily brings in support for newer hardware, and FreeBSD is not yet able to support the abundance of IRQs on new hardware and many features in the Ethernet driver. Because of the changes to IRQs in the Simple Executive, we have to maintain our own list of Octeon IRQs now, which probably can be pared-down and be specific to the CIU interrupt unit soon, and when other interrupt mechanisms are added they can maintain their own definitions. Remove unmasking of interrupts from within the UART device now that the function used is no longer present in the Simple Executive. The unmasking seems to have been gratuitous as this is more properly handled by the buses above the UART device, and seems to work on that basis.
272 lines
10 KiB
C
272 lines
10 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* This file contains defines for the SPI interface
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* <hr>$Revision: 70030 $<hr>
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*
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*
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*/
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#ifndef __CVMX_SPI_H__
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#define __CVMX_SPI_H__
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#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
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#include "cvmx-gmxx-defs.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* CSR typedefs have been moved to cvmx-spi-defs.h */
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typedef enum
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{
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CVMX_SPI_MODE_UNKNOWN = 0,
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CVMX_SPI_MODE_TX_HALFPLEX = 1,
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CVMX_SPI_MODE_RX_HALFPLEX = 2,
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CVMX_SPI_MODE_DUPLEX = 3
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} cvmx_spi_mode_t;
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/** Callbacks structure to customize SPI4 initialization sequence */
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typedef struct
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{
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/** Called to reset SPI4 DLL */
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int (*reset_cb)(int interface, cvmx_spi_mode_t mode);
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/** Called to setup calendar */
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int (*calendar_setup_cb)(int interface, cvmx_spi_mode_t mode, int num_ports);
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/** Called for Tx and Rx clock detection */
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int (*clock_detect_cb)(int interface, cvmx_spi_mode_t mode, int timeout);
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/** Called to perform link training */
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int (*training_cb)(int interface, cvmx_spi_mode_t mode, int timeout);
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/** Called for calendar data synchronization */
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int (*calendar_sync_cb)(int interface, cvmx_spi_mode_t mode, int timeout);
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/** Called when interface is up */
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int (*interface_up_cb)(int interface, cvmx_spi_mode_t mode);
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} cvmx_spi_callbacks_t;
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/**
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* Return true if the supplied interface is configured for SPI
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*
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* @param interface Interface to check
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* @return True if interface is SPI
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*/
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static inline int cvmx_spi_is_spi_interface(int interface)
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{
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uint64_t gmxState = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
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return ((gmxState & 0x2) && (gmxState & 0x1));
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}
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/**
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* Initialize and start the SPI interface.
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param timeout Timeout to wait for clock synchronization in seconds
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* @param num_ports Number of SPI ports to configure
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*
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* @return Zero on success, negative of failure.
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*/
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extern int cvmx_spi_start_interface(int interface, cvmx_spi_mode_t mode, int timeout, int num_ports);
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/**
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* This routine restarts the SPI interface after it has lost synchronization
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* with its corespondant system.
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param timeout Timeout to wait for clock synchronization in seconds
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* @return Zero on success, negative of failure.
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*/
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extern int cvmx_spi_restart_interface(int interface, cvmx_spi_mode_t mode, int timeout);
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/**
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* Return non-zero if the SPI interface has a SPI4000 attached
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*
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* @param interface SPI interface the SPI4000 is connected to
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*
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* @return
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*/
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extern int cvmx_spi4000_is_present(int interface);
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/**
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* Initialize the SPI4000 for use
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*
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* @param interface SPI interface the SPI4000 is connected to
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*/
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extern int cvmx_spi4000_initialize(int interface);
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/**
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* Poll all the SPI4000 port and check its speed
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*
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* @param interface Interface the SPI4000 is on
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* @param port Port to poll (0-9)
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* @return Status of the port. 0=down. All other values the port is up.
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*/
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extern cvmx_gmxx_rxx_rx_inbnd_t cvmx_spi4000_check_speed(int interface, int port);
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/**
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* Get current SPI4 initialization callbacks
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*
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* @param callbacks Pointer to the callbacks structure.to fill
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*
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* @return Pointer to cvmx_spi_callbacks_t structure.
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*/
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extern void cvmx_spi_get_callbacks(cvmx_spi_callbacks_t * callbacks);
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/**
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* Set new SPI4 initialization callbacks
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*
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* @param new_callbacks Pointer to an updated callbacks structure.
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*/
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extern void cvmx_spi_set_callbacks(cvmx_spi_callbacks_t * new_callbacks);
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/**
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* Callback to perform SPI4 reset
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_reset_cb(int interface, cvmx_spi_mode_t mode);
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/**
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* Callback to setup calendar and miscellaneous settings before clock detection
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param num_ports Number of ports to configure on SPI
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*
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_calendar_setup_cb(int interface, cvmx_spi_mode_t mode, int num_ports);
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/**
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* Callback to perform clock detection
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param timeout Timeout to wait for clock synchronization in seconds
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_clock_detect_cb(int interface, cvmx_spi_mode_t mode, int timeout);
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/**
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* Callback to perform link training
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param timeout Timeout to wait for link to be trained (in seconds)
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_training_cb(int interface, cvmx_spi_mode_t mode, int timeout);
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/**
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* Callback to perform calendar data synchronization
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @param timeout Timeout to wait for calendar data in seconds
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_calendar_sync_cb(int interface, cvmx_spi_mode_t mode, int timeout);
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/**
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* Callback to handle interface up
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*
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* @param interface The identifier of the packet interface to configure and
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* use as a SPI interface.
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* @param mode The operating mode for the SPI interface. The interface
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* can operate as a full duplex (both Tx and Rx data paths
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* active) or as a halfplex (either the Tx data path is
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* active or the Rx data path is active, but not both).
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* @return Zero on success, non-zero error code on failure (will cause SPI initialization to abort)
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*/
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extern int cvmx_spi_interface_up_cb(int interface, cvmx_spi_mode_t mode);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CVMX_SPI_H__ */
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