1 /***********************license start*************** 2 * Author: Cavium Networks 3 * 4 * Contact: support@caviumnetworks.com 5 * This file is part of the OCTEON SDK 6 * 7 * Copyright (c) 2003-2008 Cavium Networks 8 * 9 * This file is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License, Version 2, as 11 * published by the Free Software Foundation. 12 * 13 * This file is distributed in the hope that it will be useful, but 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or 16 * NONINFRINGEMENT. See the GNU General Public License for more 17 * details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this file; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 22 * or visit http://www.gnu.org/licenses/. 23 * 24 * This file may also be available under a different license from Cavium. 25 * Contact Cavium Networks for more information 26 ***********************license end**************************************/ 27 28 /** 29 * 30 * Helper functions to abstract board specific data about 31 * network ports from the rest of the cvmx-helper files. 32 * 33 */ 34 #ifndef __CVMX_HELPER_BOARD_H__ 35 #define __CVMX_HELPER_BOARD_H__ 36 37 #include <asm/octeon/cvmx-helper.h> 38 39 typedef enum { 40 set_phy_link_flags_autoneg = 0x1, 41 set_phy_link_flags_flow_control_dont_touch = 0x0 << 1, 42 set_phy_link_flags_flow_control_enable = 0x1 << 1, 43 set_phy_link_flags_flow_control_disable = 0x2 << 1, 44 set_phy_link_flags_flow_control_mask = 0x3 << 1, /* Mask for 2 bit wide flow control field */ 45 } cvmx_helper_board_set_phy_link_flags_types_t; 46 47 /* 48 * Fake IPD port, the RGMII/MII interface may use different PHY, use 49 * this macro to return appropriate MIX address to read the PHY. 50 */ 51 #define CVMX_HELPER_BOARD_MGMT_IPD_PORT -10 52 53 /** 54 * cvmx_override_board_link_get(int ipd_port) is a function 55 * pointer. It is meant to allow customization of the process of 56 * talking to a PHY to determine link speed. It is called every 57 * time a PHY must be polled for link status. Users should set 58 * this pointer to a function before calling any cvmx-helper 59 * operations. 60 */ 61 extern cvmx_helper_link_info_t(*cvmx_override_board_link_get) (int ipd_port); 62 63 /** 64 * Return the MII PHY address associated with the given IPD 65 * port. A result of -1 means there isn't a MII capable PHY 66 * connected to this port. On chips supporting multiple MII 67 * busses the bus number is encoded in bits <15:8>. 68 * 69 * This function must be modifed for every new Octeon board. 70 * Internally it uses switch statements based on the cvmx_sysinfo 71 * data to determine board types and revisions. It relys on the 72 * fact that every Octeon board receives a unique board type 73 * enumeration from the bootloader. 74 * 75 * @ipd_port: Octeon IPD port to get the MII address for. 76 * 77 * Returns MII PHY address and bus number or -1. 78 */ 79 extern int cvmx_helper_board_get_mii_address(int ipd_port); 80 81 /** 82 * This function as a board specific method of changing the PHY 83 * speed, duplex, and autonegotiation. This programs the PHY and 84 * not Octeon. This can be used to force Octeon's links to 85 * specific settings. 86 * 87 * @phy_addr: The address of the PHY to program 88 * @link_flags: 89 * Flags to control autonegotiation. Bit 0 is autonegotiation 90 * enable/disable to maintain backware compatibility. 91 * @link_info: Link speed to program. If the speed is zero and autonegotiation 92 * is enabled, all possible negotiation speeds are advertised. 93 * 94 * Returns Zero on success, negative on failure 95 */ 96 int cvmx_helper_board_link_set_phy(int phy_addr, 97 cvmx_helper_board_set_phy_link_flags_types_t 98 link_flags, 99 cvmx_helper_link_info_t link_info); 100 101 /** 102 * This function is the board specific method of determining an 103 * ethernet ports link speed. Most Octeon boards have Marvell PHYs 104 * and are handled by the fall through case. This function must be 105 * updated for boards that don't have the normal Marvell PHYs. 106 * 107 * This function must be modifed for every new Octeon board. 108 * Internally it uses switch statements based on the cvmx_sysinfo 109 * data to determine board types and revisions. It relys on the 110 * fact that every Octeon board receives a unique board type 111 * enumeration from the bootloader. 112 * 113 * @ipd_port: IPD input port associated with the port we want to get link 114 * status for. 115 * 116 * Returns The ports link status. If the link isn't fully resolved, this must 117 * return zero. 118 */ 119 extern cvmx_helper_link_info_t __cvmx_helper_board_link_get(int ipd_port); 120 121 /** 122 * This function is called by cvmx_helper_interface_probe() after it 123 * determines the number of ports Octeon can support on a specific 124 * interface. This function is the per board location to override 125 * this value. It is called with the number of ports Octeon might 126 * support and should return the number of actual ports on the 127 * board. 128 * 129 * This function must be modifed for every new Octeon board. 130 * Internally it uses switch statements based on the cvmx_sysinfo 131 * data to determine board types and revisions. It relys on the 132 * fact that every Octeon board receives a unique board type 133 * enumeration from the bootloader. 134 * 135 * @interface: Interface to probe 136 * @supported_ports: 137 * Number of ports Octeon supports. 138 * 139 * Returns Number of ports the actual board supports. Many times this will 140 * simple be "support_ports". 141 */ 142 extern int __cvmx_helper_board_interface_probe(int interface, 143 int supported_ports); 144 145 /** 146 * Enable packet input/output from the hardware. This function is 147 * called after by cvmx_helper_packet_hardware_enable() to 148 * perform board specific initialization. For most boards 149 * nothing is needed. 150 * 151 * @interface: Interface to enable 152 * 153 * Returns Zero on success, negative on failure 154 */ 155 extern int __cvmx_helper_board_hardware_enable(int interface); 156 157 #endif /* __CVMX_HELPER_BOARD_H__ */ 158