158 lines
5.9 KiB
C
158 lines
5.9 KiB
C
/***********************license start***************
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2003-2008 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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***********************license end**************************************/
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/**
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*
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* Helper functions to abstract board specific data about
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* network ports from the rest of the cvmx-helper files.
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*
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*/
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#ifndef __CVMX_HELPER_BOARD_H__
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#define __CVMX_HELPER_BOARD_H__
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#include "cvmx-helper.h"
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typedef enum {
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set_phy_link_flags_autoneg = 0x1,
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set_phy_link_flags_flow_control_dont_touch = 0x0 << 1,
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set_phy_link_flags_flow_control_enable = 0x1 << 1,
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set_phy_link_flags_flow_control_disable = 0x2 << 1,
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set_phy_link_flags_flow_control_mask = 0x3 << 1, /* Mask for 2 bit wide flow control field */
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} cvmx_helper_board_set_phy_link_flags_types_t;
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/*
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* Fake IPD port, the RGMII/MII interface may use different PHY, use
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* this macro to return appropriate MIX address to read the PHY.
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*/
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#define CVMX_HELPER_BOARD_MGMT_IPD_PORT -10
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/**
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* cvmx_override_board_link_get(int ipd_port) is a function
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* pointer. It is meant to allow customization of the process of
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* talking to a PHY to determine link speed. It is called every
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* time a PHY must be polled for link status. Users should set
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* this pointer to a function before calling any cvmx-helper
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* operations.
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*/
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extern cvmx_helper_link_info_t(*cvmx_override_board_link_get) (int ipd_port);
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/**
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* Return the MII PHY address associated with the given IPD
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* port. A result of -1 means there isn't a MII capable PHY
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* connected to this port. On chips supporting multiple MII
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* busses the bus number is encoded in bits <15:8>.
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*
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* This function must be modifed for every new Octeon board.
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* Internally it uses switch statements based on the cvmx_sysinfo
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* data to determine board types and revisions. It relys on the
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* fact that every Octeon board receives a unique board type
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* enumeration from the bootloader.
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*
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* @ipd_port: Octeon IPD port to get the MII address for.
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*
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* Returns MII PHY address and bus number or -1.
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*/
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extern int cvmx_helper_board_get_mii_address(int ipd_port);
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/**
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* This function as a board specific method of changing the PHY
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* speed, duplex, and autonegotiation. This programs the PHY and
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* not Octeon. This can be used to force Octeon's links to
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* specific settings.
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*
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* @phy_addr: The address of the PHY to program
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* @link_flags:
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* Flags to control autonegotiation. Bit 0 is autonegotiation
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* enable/disable to maintain backware compatibility.
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* @link_info: Link speed to program. If the speed is zero and autonegotiation
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* is enabled, all possible negotiation speeds are advertised.
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*
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* Returns Zero on success, negative on failure
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*/
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int cvmx_helper_board_link_set_phy(int phy_addr,
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cvmx_helper_board_set_phy_link_flags_types_t
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link_flags,
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cvmx_helper_link_info_t link_info);
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/**
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* This function is the board specific method of determining an
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* ethernet ports link speed. Most Octeon boards have Marvell PHYs
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* and are handled by the fall through case. This function must be
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* updated for boards that don't have the normal Marvell PHYs.
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*
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* This function must be modifed for every new Octeon board.
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* Internally it uses switch statements based on the cvmx_sysinfo
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* data to determine board types and revisions. It relys on the
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* fact that every Octeon board receives a unique board type
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* enumeration from the bootloader.
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*
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* @ipd_port: IPD input port associated with the port we want to get link
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* status for.
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*
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* Returns The ports link status. If the link isn't fully resolved, this must
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* return zero.
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*/
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extern cvmx_helper_link_info_t __cvmx_helper_board_link_get(int ipd_port);
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/**
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* This function is called by cvmx_helper_interface_probe() after it
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* determines the number of ports Octeon can support on a specific
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* interface. This function is the per board location to override
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* this value. It is called with the number of ports Octeon might
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* support and should return the number of actual ports on the
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* board.
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*
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* This function must be modifed for every new Octeon board.
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* Internally it uses switch statements based on the cvmx_sysinfo
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* data to determine board types and revisions. It relys on the
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* fact that every Octeon board receives a unique board type
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* enumeration from the bootloader.
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*
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* @interface: Interface to probe
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* @supported_ports:
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* Number of ports Octeon supports.
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*
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* Returns Number of ports the actual board supports. Many times this will
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* simple be "support_ports".
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*/
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extern int __cvmx_helper_board_interface_probe(int interface,
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int supported_ports);
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/**
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* Enable packet input/output from the hardware. This function is
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* called after by cvmx_helper_packet_hardware_enable() to
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* perform board specific initialization. For most boards
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* nothing is needed.
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*
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* @interface: Interface to enable
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*
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* Returns Zero on success, negative on failure
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*/
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extern int __cvmx_helper_board_hardware_enable(int interface);
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#endif /* __CVMX_HELPER_BOARD_H__ */
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