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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Copyright (C) 2020 Marvell International Ltd.
- *
- * Functions for SPI initialization, configuration,
- * and monitoring.
- */
- #ifndef __CVMX_HELPER_SPI_H__
- #define __CVMX_HELPER_SPI_H__
- #include "cvmx-helper.h"
- /**
- * @INTERNAL
- * Probe a SPI interface and determine the number of ports
- * connected to it. The SPI interface should still be down after
- * this call.
- *
- * @param interface Interface to probe
- *
- * Return: Number of ports on the interface. Zero to disable.
- */
- int __cvmx_helper_spi_probe(int interface);
- int __cvmx_helper_spi_enumerate(int interface);
- /**
- * @INTERNAL
- * Bringup and enable a SPI interface. After this call packet I/O
- * should be fully functional. This is called with IPD enabled but
- * PKO disabled.
- *
- * @param interface Interface to bring up
- *
- * Return: Zero on success, negative on failure
- */
- int __cvmx_helper_spi_enable(int interface);
- /**
- * @INTERNAL
- * Return the link state of an IPD/PKO port as returned by
- * auto negotiation. The result of this function may not match
- * Octeon's link config if auto negotiation has changed since
- * the last call to cvmx_helper_link_set().
- *
- * @param ipd_port IPD/PKO port to query
- *
- * Return: Link state
- */
- cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port);
- /**
- * @INTERNAL
- * Configure an IPD/PKO port for the specified link state. This
- * function does not influence auto negotiation at the PHY level.
- * The passed link state must always match the link state returned
- * by cvmx_helper_link_get(). It is normally best to use
- * cvmx_helper_link_autoconf() instead.
- *
- * @param ipd_port IPD/PKO port to configure
- * @param link_info The new link state
- *
- * Return: Zero on success, negative on failure
- */
- int __cvmx_helper_spi_link_set(int ipd_port, cvmx_helper_link_info_t link_info);
- /**
- * Sets the spi timeout in config data
- * @param timeout value
- */
- void cvmx_spi_config_set_timeout(int timeout);
- #endif
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