drivers/net/dsa/mv88e6171.c

   1 /* net/dsa/mv88e6171.c - Marvell 88e6171 switch chip support
   2  * Copyright (c) 2008-2009 Marvell Semiconductor
   3  * Copyright (c) 2014 Claudio Leite <leitec@staticky.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  */
  10
  11 #include <linux/delay.h>
  12 #include <linux/jiffies.h>
  13 #include <linux/list.h>
  14 #include <linux/module.h>
  15 #include <linux/netdevice.h>
  16 #include <linux/phy.h>
  17 #include <net/dsa.h>
  18 #include "mv88e6xxx.h"
  19
  20 static const struct mv88e6xxx_info mv88e6171_table[] = {
  21         {
  22                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6171,
  23                 .family = MV88E6XXX_FAMILY_6351,
  24                 .name = "Marvell 88E6171",
  25                 .num_databases = 4096,
  26                 .num_ports = 7,
  27                 .flags = MV88E6XXX_FLAGS_FAMILY_6351,
  28         }, {
  29                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6175,
  30                 .family = MV88E6XXX_FAMILY_6351,
  31                 .name = "Marvell 88E6175",
  32                 .num_databases = 4096,
  33                 .num_ports = 7,
  34                 .flags = MV88E6XXX_FLAGS_FAMILY_6351,
  35         }, {
  36                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6350,
  37                 .family = MV88E6XXX_FAMILY_6351,
  38                 .name = "Marvell 88E6350",
  39                 .num_databases = 4096,
  40                 .num_ports = 7,
  41                 .flags = MV88E6XXX_FLAGS_FAMILY_6351,
  42         }, {
  43                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6351,
  44                 .family = MV88E6XXX_FAMILY_6351,
  45                 .name = "Marvell 88E6351",
  46                 .num_databases = 4096,
  47                 .num_ports = 7,
  48                 .flags = MV88E6XXX_FLAGS_FAMILY_6351,
  49         }
  50 };
  51
  52 static const char *mv88e6171_drv_probe(struct device *dsa_dev,
  53                                        struct device *host_dev, int sw_addr,
  54                                        void **priv)
  55 {
  56         return mv88e6xxx_drv_probe(dsa_dev, host_dev, sw_addr, priv,
  57                                    mv88e6171_table,
  58                                    ARRAY_SIZE(mv88e6171_table));
  59 }
  60
  61 static int mv88e6171_setup_global(struct dsa_switch *ds)
  62 {
  63         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
  64         u32 upstream_port = dsa_upstream_port(ds);
  65         int ret;
  66         u32 reg;
  67
  68         ret = mv88e6xxx_setup_global(ds);
  69         if (ret)
  70                 return ret;
  71
  72         /* Discard packets with excessive collisions, mask all
  73          * interrupt sources, enable PPU.
  74          */
  75         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL,
  76                                   GLOBAL_CONTROL_PPU_ENABLE |
  77                                   GLOBAL_CONTROL_DISCARD_EXCESS);
  78         if (ret)
  79                 return ret;
  80
  81         /* Configure the upstream port, and configure the upstream
  82          * port as the port to which ingress and egress monitor frames
  83          * are to be sent.
  84          */
  85         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
  86                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
  87                 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
  88                 upstream_port << GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT;
  89         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
  90         if (ret)
  91                 return ret;
  92
  93         /* Disable remote management for now, and set the switch's
  94          * DSA device number.
  95          */
  96         return mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL_2,
  97                                    ds->index & 0x1f);
  98 }
  99
 100 static int mv88e6171_setup(struct dsa_switch *ds)
 101 {
 102         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 103         int ret;
 104
 105         ps->ds = ds;
 106
 107         ret = mv88e6xxx_setup_common(ps);
 108         if (ret < 0)
 109                 return ret;
 110
 111         ret = mv88e6171_setup_global(ds);
 112         if (ret < 0)
 113                 return ret;
 114
 115         return mv88e6xxx_setup_ports(ds);
 116 }
 117
 118 struct dsa_switch_driver mv88e6171_switch_driver = {
 119         .tag_protocol           = DSA_TAG_PROTO_EDSA,
 120         .probe                  = mv88e6171_drv_probe,
 121         .setup                  = mv88e6171_setup,
 122         .set_addr               = mv88e6xxx_set_addr,
 123         .phy_read               = mv88e6xxx_phy_read,
 124         .phy_write              = mv88e6xxx_phy_write,
 125         .set_eee                = mv88e6xxx_set_eee,
 126         .get_eee                = mv88e6xxx_get_eee,
 127         .get_strings            = mv88e6xxx_get_strings,
 128         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 129         .get_sset_count         = mv88e6xxx_get_sset_count,
 130         .adjust_link            = mv88e6xxx_adjust_link,
 131 #ifdef CONFIG_NET_DSA_HWMON
 132         .get_temp               = mv88e6xxx_get_temp,
 133         .get_temp_limit         = mv88e6xxx_get_temp_limit,
 134         .set_temp_limit         = mv88e6xxx_set_temp_limit,
 135         .get_temp_alarm         = mv88e6xxx_get_temp_alarm,
 136 #endif
 137         .get_eeprom             = mv88e6xxx_get_eeprom,
 138         .set_eeprom             = mv88e6xxx_set_eeprom,
 139         .get_regs_len           = mv88e6xxx_get_regs_len,
 140         .get_regs               = mv88e6xxx_get_regs,
 141         .port_bridge_join       = mv88e6xxx_port_bridge_join,
 142         .port_bridge_leave      = mv88e6xxx_port_bridge_leave,
 143         .port_stp_state_set     = mv88e6xxx_port_stp_state_set,
 144         .port_vlan_filtering    = mv88e6xxx_port_vlan_filtering,
 145         .port_vlan_prepare      = mv88e6xxx_port_vlan_prepare,
 146         .port_vlan_add          = mv88e6xxx_port_vlan_add,
 147         .port_vlan_del          = mv88e6xxx_port_vlan_del,
 148         .port_vlan_dump         = mv88e6xxx_port_vlan_dump,
 149         .port_fdb_prepare       = mv88e6xxx_port_fdb_prepare,
 150         .port_fdb_add           = mv88e6xxx_port_fdb_add,
 151         .port_fdb_del           = mv88e6xxx_port_fdb_del,
 152         .port_fdb_dump          = mv88e6xxx_port_fdb_dump,
 153 };
 154
 155 MODULE_ALIAS("platform:mv88e6171");
 156 MODULE_ALIAS("platform:mv88e6175");
 157 MODULE_ALIAS("platform:mv88e6350");
 158 MODULE_ALIAS("platform:mv88e6351");