1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __DSA_PDATA_H 3*4882a593Smuzhiyun #define __DSA_PDATA_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun struct device; 6*4882a593Smuzhiyun struct net_device; 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #define DSA_MAX_SWITCHES 4 9*4882a593Smuzhiyun #define DSA_MAX_PORTS 12 10*4882a593Smuzhiyun #define DSA_RTABLE_NONE -1 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun struct dsa_chip_data { 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * How to access the switch configuration registers. 15*4882a593Smuzhiyun */ 16*4882a593Smuzhiyun struct device *host_dev; 17*4882a593Smuzhiyun int sw_addr; 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun /* 20*4882a593Smuzhiyun * Reference to network devices 21*4882a593Smuzhiyun */ 22*4882a593Smuzhiyun struct device *netdev[DSA_MAX_PORTS]; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun /* set to size of eeprom if supported by the switch */ 25*4882a593Smuzhiyun int eeprom_len; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /* Device tree node pointer for this specific switch chip 28*4882a593Smuzhiyun * used during switch setup in case additional properties 29*4882a593Smuzhiyun * and resources needs to be used 30*4882a593Smuzhiyun */ 31*4882a593Smuzhiyun struct device_node *of_node; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun /* 34*4882a593Smuzhiyun * The names of the switch's ports. Use "cpu" to 35*4882a593Smuzhiyun * designate the switch port that the cpu is connected to, 36*4882a593Smuzhiyun * "dsa" to indicate that this port is a DSA link to 37*4882a593Smuzhiyun * another switch, NULL to indicate the port is unused, 38*4882a593Smuzhiyun * or any other string to indicate this is a physical port. 39*4882a593Smuzhiyun */ 40*4882a593Smuzhiyun char *port_names[DSA_MAX_PORTS]; 41*4882a593Smuzhiyun struct device_node *port_dn[DSA_MAX_PORTS]; 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun /* 44*4882a593Smuzhiyun * An array of which element [a] indicates which port on this 45*4882a593Smuzhiyun * switch should be used to send packets to that are destined 46*4882a593Smuzhiyun * for switch a. Can be NULL if there is only one switch chip. 47*4882a593Smuzhiyun */ 48*4882a593Smuzhiyun s8 rtable[DSA_MAX_SWITCHES]; 49*4882a593Smuzhiyun }; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun struct dsa_platform_data { 52*4882a593Smuzhiyun /* 53*4882a593Smuzhiyun * Reference to a Linux network interface that connects 54*4882a593Smuzhiyun * to the root switch chip of the tree. 55*4882a593Smuzhiyun */ 56*4882a593Smuzhiyun struct device *netdev; 57*4882a593Smuzhiyun struct net_device *of_netdev; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun /* 60*4882a593Smuzhiyun * Info structs describing each of the switch chips 61*4882a593Smuzhiyun * connected via this network interface. 62*4882a593Smuzhiyun */ 63*4882a593Smuzhiyun int nr_chips; 64*4882a593Smuzhiyun struct dsa_chip_data *chip; 65*4882a593Smuzhiyun }; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun #endif /* __DSA_PDATA_H */ 69