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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/mips/include/asm/octeon/cvmx-helper-spi.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-helper-spi.h')
-rw-r--r-- | arch/mips/include/asm/octeon/cvmx-helper-spi.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-helper-spi.h b/arch/mips/include/asm/octeon/cvmx-helper-spi.h new file mode 100644 index 00000000..9f1c6b96 --- /dev/null +++ b/arch/mips/include/asm/octeon/cvmx-helper-spi.h @@ -0,0 +1,85 @@ +/***********************license start*************** + * Author: Cavium Networks + * + * Contact: support@caviumnetworks.com + * This file is part of the OCTEON SDK + * + * Copyright (c) 2003-2008 Cavium Networks + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, Version 2, as + * published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, but + * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * or visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information + ***********************license end**************************************/ + +/* + * Functions for SPI initialization, configuration, + * and monitoring. + */ +#ifndef __CVMX_HELPER_SPI_H__ +#define __CVMX_HELPER_SPI_H__ + +/** + * Probe a SPI interface and determine the number of ports + * connected to it. The SPI interface should still be down after + * this call. + * + * @interface: Interface to probe + * + * Returns Number of ports on the interface. Zero to disable. + */ +extern int __cvmx_helper_spi_probe(int interface); +extern int __cvmx_helper_spi_enumerate(int interface); + +/** + * 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. + * + * @interface: Interface to bring up + * + * Returns Zero on success, negative on failure + */ +extern int __cvmx_helper_spi_enable(int interface); + +/** + * 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(). + * + * @ipd_port: IPD/PKO port to query + * + * Returns Link state + */ +extern cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port); + +/** + * 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. + * + * @ipd_port: IPD/PKO port to configure + * @link_info: The new link state + * + * Returns Zero on success, negative on failure + */ +extern int __cvmx_helper_spi_link_set(int ipd_port, + cvmx_helper_link_info_t link_info); + +#endif |