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/***********************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**************************************/
/**
*
* Helper functions to abstract board specific data about
* network ports from the rest of the cvmx-helper files.
*
*/
#ifndef __CVMX_HELPER_BOARD_H__
#define __CVMX_HELPER_BOARD_H__
#include <asm/octeon/cvmx-helper.h>
typedef enum {
set_phy_link_flags_autoneg = 0x1,
set_phy_link_flags_flow_control_dont_touch = 0x0 << 1,
set_phy_link_flags_flow_control_enable = 0x1 << 1,
set_phy_link_flags_flow_control_disable = 0x2 << 1,
set_phy_link_flags_flow_control_mask = 0x3 << 1, /* Mask for 2 bit wide flow control field */
} cvmx_helper_board_set_phy_link_flags_types_t;
/*
* Fake IPD port, the RGMII/MII interface may use different PHY, use
* this macro to return appropriate MIX address to read the PHY.
*/
#define CVMX_HELPER_BOARD_MGMT_IPD_PORT -10
/**
* cvmx_override_board_link_get(int ipd_port) is a function
* pointer. It is meant to allow customization of the process of
* talking to a PHY to determine link speed. It is called every
* time a PHY must be polled for link status. Users should set
* this pointer to a function before calling any cvmx-helper
* operations.
*/
extern cvmx_helper_link_info_t(*cvmx_override_board_link_get) (int ipd_port);
/**
* Return the MII PHY address associated with the given IPD
* port. A result of -1 means there isn't a MII capable PHY
* connected to this port. On chips supporting multiple MII
* busses the bus number is encoded in bits <15:8>.
*
* This function must be modifed for every new Octeon board.
* Internally it uses switch statements based on the cvmx_sysinfo
* data to determine board types and revisions. It relys on the
* fact that every Octeon board receives a unique board type
* enumeration from the bootloader.
*
* @ipd_port: Octeon IPD port to get the MII address for.
*
* Returns MII PHY address and bus number or -1.
*/
extern int cvmx_helper_board_get_mii_address(int ipd_port);
/**
* This function as a board specific method of changing the PHY
* speed, duplex, and autonegotiation. This programs the PHY and
* not Octeon. This can be used to force Octeon's links to
* specific settings.
*
* @phy_addr: The address of the PHY to program
* @link_flags:
* Flags to control autonegotiation. Bit 0 is autonegotiation
* enable/disable to maintain backware compatibility.
* @link_info: Link speed to program. If the speed is zero and autonegotiation
* is enabled, all possible negotiation speeds are advertised.
*
* Returns Zero on success, negative on failure
*/
int cvmx_helper_board_link_set_phy(int phy_addr,
cvmx_helper_board_set_phy_link_flags_types_t
link_flags,
cvmx_helper_link_info_t link_info);
/**
* This function is the board specific method of determining an
* ethernet ports link speed. Most Octeon boards have Marvell PHYs
* and are handled by the fall through case. This function must be
* updated for boards that don't have the normal Marvell PHYs.
*
* This function must be modifed for every new Octeon board.
* Internally it uses switch statements based on the cvmx_sysinfo
* data to determine board types and revisions. It relys on the
* fact that every Octeon board receives a unique board type
* enumeration from the bootloader.
*
* @ipd_port: IPD input port associated with the port we want to get link
* status for.
*
* Returns The ports link status. If the link isn't fully resolved, this must
* return zero.
*/
extern cvmx_helper_link_info_t __cvmx_helper_board_link_get(int ipd_port);
/**
* This function is called by cvmx_helper_interface_probe() after it
* determines the number of ports Octeon can support on a specific
* interface. This function is the per board location to override
* this value. It is called with the number of ports Octeon might
* support and should return the number of actual ports on the
* board.
*
* This function must be modifed for every new Octeon board.
* Internally it uses switch statements based on the cvmx_sysinfo
* data to determine board types and revisions. It relys on the
* fact that every Octeon board receives a unique board type
* enumeration from the bootloader.
*
* @interface: Interface to probe
* @supported_ports:
* Number of ports Octeon supports.
*
* Returns Number of ports the actual board supports. Many times this will
* simple be "support_ports".
*/
extern int __cvmx_helper_board_interface_probe(int interface,
int supported_ports);
/**
* Enable packet input/output from the hardware. This function is
* called after by cvmx_helper_packet_hardware_enable() to
* perform board specific initialization. For most boards
* nothing is needed.
*
* @interface: Interface to enable
*
* Returns Zero on success, negative on failure
*/
extern int __cvmx_helper_board_hardware_enable(int interface);
#endif /* __CVMX_HELPER_BOARD_H__ */
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