18c2ecf20Sopenharmony_ci/***********************license start*************** 28c2ecf20Sopenharmony_ci * Author: Cavium Networks 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * Contact: support@caviumnetworks.com 58c2ecf20Sopenharmony_ci * This file is part of the OCTEON SDK 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Copyright (c) 2003-2008 Cavium Networks 88c2ecf20Sopenharmony_ci * 98c2ecf20Sopenharmony_ci * This file is free software; you can redistribute it and/or modify 108c2ecf20Sopenharmony_ci * it under the terms of the GNU General Public License, Version 2, as 118c2ecf20Sopenharmony_ci * published by the Free Software Foundation. 128c2ecf20Sopenharmony_ci * 138c2ecf20Sopenharmony_ci * This file is distributed in the hope that it will be useful, but 148c2ecf20Sopenharmony_ci * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 158c2ecf20Sopenharmony_ci * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 168c2ecf20Sopenharmony_ci * NONINFRINGEMENT. See the GNU General Public License for more 178c2ecf20Sopenharmony_ci * details. 188c2ecf20Sopenharmony_ci * 198c2ecf20Sopenharmony_ci * You should have received a copy of the GNU General Public License 208c2ecf20Sopenharmony_ci * along with this file; if not, write to the Free Software 218c2ecf20Sopenharmony_ci * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 228c2ecf20Sopenharmony_ci * or visit http://www.gnu.org/licenses/. 238c2ecf20Sopenharmony_ci * 248c2ecf20Sopenharmony_ci * This file may also be available under a different license from Cavium. 258c2ecf20Sopenharmony_ci * Contact Cavium Networks for more information 268c2ecf20Sopenharmony_ci ***********************license end**************************************/ 278c2ecf20Sopenharmony_ci 288c2ecf20Sopenharmony_ci/* 298c2ecf20Sopenharmony_ci * Functions for SPI initialization, configuration, 308c2ecf20Sopenharmony_ci * and monitoring. 318c2ecf20Sopenharmony_ci */ 328c2ecf20Sopenharmony_ci#ifndef __CVMX_HELPER_SPI_H__ 338c2ecf20Sopenharmony_ci#define __CVMX_HELPER_SPI_H__ 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_ci/** 368c2ecf20Sopenharmony_ci * Probe a SPI interface and determine the number of ports 378c2ecf20Sopenharmony_ci * connected to it. The SPI interface should still be down after 388c2ecf20Sopenharmony_ci * this call. 398c2ecf20Sopenharmony_ci * 408c2ecf20Sopenharmony_ci * @interface: Interface to probe 418c2ecf20Sopenharmony_ci * 428c2ecf20Sopenharmony_ci * Returns Number of ports on the interface. Zero to disable. 438c2ecf20Sopenharmony_ci */ 448c2ecf20Sopenharmony_ciextern int __cvmx_helper_spi_probe(int interface); 458c2ecf20Sopenharmony_ciextern int __cvmx_helper_spi_enumerate(int interface); 468c2ecf20Sopenharmony_ci 478c2ecf20Sopenharmony_ci/** 488c2ecf20Sopenharmony_ci * Bringup and enable a SPI interface. After this call packet I/O 498c2ecf20Sopenharmony_ci * should be fully functional. This is called with IPD enabled but 508c2ecf20Sopenharmony_ci * PKO disabled. 518c2ecf20Sopenharmony_ci * 528c2ecf20Sopenharmony_ci * @interface: Interface to bring up 538c2ecf20Sopenharmony_ci * 548c2ecf20Sopenharmony_ci * Returns Zero on success, negative on failure 558c2ecf20Sopenharmony_ci */ 568c2ecf20Sopenharmony_ciextern int __cvmx_helper_spi_enable(int interface); 578c2ecf20Sopenharmony_ci 588c2ecf20Sopenharmony_ci/** 598c2ecf20Sopenharmony_ci * Return the link state of an IPD/PKO port as returned by 608c2ecf20Sopenharmony_ci * auto negotiation. The result of this function may not match 618c2ecf20Sopenharmony_ci * Octeon's link config if auto negotiation has changed since 628c2ecf20Sopenharmony_ci * the last call to cvmx_helper_link_set(). 638c2ecf20Sopenharmony_ci * 648c2ecf20Sopenharmony_ci * @ipd_port: IPD/PKO port to query 658c2ecf20Sopenharmony_ci * 668c2ecf20Sopenharmony_ci * Returns Link state 678c2ecf20Sopenharmony_ci */ 688c2ecf20Sopenharmony_ciextern union cvmx_helper_link_info __cvmx_helper_spi_link_get(int ipd_port); 698c2ecf20Sopenharmony_ci 708c2ecf20Sopenharmony_ci/** 718c2ecf20Sopenharmony_ci * Configure an IPD/PKO port for the specified link state. This 728c2ecf20Sopenharmony_ci * function does not influence auto negotiation at the PHY level. 738c2ecf20Sopenharmony_ci * The passed link state must always match the link state returned 748c2ecf20Sopenharmony_ci * by cvmx_helper_link_get(). 758c2ecf20Sopenharmony_ci * 768c2ecf20Sopenharmony_ci * @ipd_port: IPD/PKO port to configure 778c2ecf20Sopenharmony_ci * @link_info: The new link state 788c2ecf20Sopenharmony_ci * 798c2ecf20Sopenharmony_ci * Returns Zero on success, negative on failure 808c2ecf20Sopenharmony_ci */ 818c2ecf20Sopenharmony_ciextern int __cvmx_helper_spi_link_set(int ipd_port, 828c2ecf20Sopenharmony_ci union cvmx_helper_link_info link_info); 838c2ecf20Sopenharmony_ci 848c2ecf20Sopenharmony_ci#endif 85