drivers/net/dsa/mv88e6131.c

   1 /*
   2  * net/dsa/mv88e6131.c - Marvell 88e6095/6095f/6131 switch chip support
   3  * Copyright (c) 2008-2009 Marvell Semiconductor
   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 mv88e6131_table[] = {
  21         {
  22                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6095,
  23                 .family = MV88E6XXX_FAMILY_6095,
  24                 .name = "Marvell 88E6095/88E6095F",
  25                 .num_databases = 256,
  26                 .num_ports = 11,
  27                 .flags = MV88E6XXX_FLAGS_FAMILY_6095,
  28         }, {
  29                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6085,
  30                 .family = MV88E6XXX_FAMILY_6097,
  31                 .name = "Marvell 88E6085",
  32                 .num_databases = 4096,
  33                 .num_ports = 10,
  34                 .flags = MV88E6XXX_FLAGS_FAMILY_6097,
  35         }, {
  36                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6131,
  37                 .family = MV88E6XXX_FAMILY_6185,
  38                 .name = "Marvell 88E6131",
  39                 .num_databases = 256,
  40                 .num_ports = 8,
  41                 .flags = MV88E6XXX_FLAGS_FAMILY_6185,
  42         }, {
  43                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6185,
  44                 .family = MV88E6XXX_FAMILY_6185,
  45                 .name = "Marvell 88E6185",
  46                 .num_databases = 256,
  47                 .num_ports = 10,
  48                 .flags = MV88E6XXX_FLAGS_FAMILY_6185,
  49         }
  50 };
  51
  52 static const char *mv88e6131_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                                    mv88e6131_table,
  58                                    ARRAY_SIZE(mv88e6131_table));
  59 }
  60
  61 static int mv88e6131_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         /* Set the VLAN ethertype to 0x8100. */
  69         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CORE_TAG_TYPE, 0x8100);
  70         if (ret)
  71                 return ret;
  72
  73         /* Disable ARP mirroring, and configure the upstream port as
  74          * the port to which ingress and egress monitor frames are to
  75          * be sent.
  76          */
  77         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
  78                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
  79                 GLOBAL_MONITOR_CONTROL_ARP_DISABLED;
  80         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
  81         if (ret)
  82                 return ret;
  83
  84         /* Disable cascade port functionality unless this device
  85          * is used in a cascade configuration, and set the switch's
  86          * DSA device number.
  87          */
  88         if (ds->dst->pd->nr_chips > 1)
  89                 ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL_2,
  90                                           GLOBAL_CONTROL_2_MULTIPLE_CASCADE |
  91                                           (ds->index & 0x1f));
  92         else
  93                 ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL_2,
  94                                           GLOBAL_CONTROL_2_NO_CASCADE |
  95                                           (ds->index & 0x1f));
  96         if (ret)
  97                 return ret;
  98
  99         /* Force the priority of IGMP/MLD snoop frames and ARP frames
 100          * to the highest setting.
 101          */
 102         return mv88e6xxx_reg_write(ps, REG_GLOBAL2, GLOBAL2_PRIO_OVERRIDE,
 103                                    GLOBAL2_PRIO_OVERRIDE_FORCE_SNOOP |
 104                                    7 << GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT |
 105                                    GLOBAL2_PRIO_OVERRIDE_FORCE_ARP |
 106                                    7 << GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT);
 107 }
 108
 109 static int mv88e6131_setup(struct dsa_switch *ds)
 110 {
 111         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 112         int ret;
 113
 114         ps->ds = ds;
 115
 116         ret = mv88e6xxx_setup_common(ps);
 117         if (ret < 0)
 118                 return ret;
 119
 120         ret = mv88e6131_setup_global(ds);
 121         if (ret < 0)
 122                 return ret;
 123
 124         return mv88e6xxx_setup_ports(ds);
 125 }
 126
 127 struct dsa_switch_driver mv88e6131_switch_driver = {
 128         .tag_protocol           = DSA_TAG_PROTO_DSA,
 129         .probe                  = mv88e6131_drv_probe,
 130         .setup                  = mv88e6131_setup,
 131         .set_addr               = mv88e6xxx_set_addr,
 132         .phy_read               = mv88e6xxx_phy_read,
 133         .phy_write              = mv88e6xxx_phy_write,
 134         .set_eee                = mv88e6xxx_set_eee,
 135         .get_eee                = mv88e6xxx_get_eee,
 136         .get_strings            = mv88e6xxx_get_strings,
 137         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 138         .get_sset_count         = mv88e6xxx_get_sset_count,
 139         .get_eeprom             = mv88e6xxx_get_eeprom,
 140         .set_eeprom             = mv88e6xxx_set_eeprom,
 141         .get_regs_len           = mv88e6xxx_get_regs_len,
 142         .get_regs               = mv88e6xxx_get_regs,
 143 #ifdef CONFIG_NET_DSA_HWMON
 144         .get_temp               = mv88e6xxx_get_temp,
 145         .get_temp_limit         = mv88e6xxx_get_temp_limit,
 146         .set_temp_limit         = mv88e6xxx_set_temp_limit,
 147         .get_temp_alarm         = mv88e6xxx_get_temp_alarm,
 148 #endif
 149         .adjust_link            = mv88e6xxx_adjust_link,
 150         .port_bridge_join       = mv88e6xxx_port_bridge_join,
 151         .port_bridge_leave      = mv88e6xxx_port_bridge_leave,
 152         .port_stp_state_set     = mv88e6xxx_port_stp_state_set,
 153         .port_vlan_filtering    = mv88e6xxx_port_vlan_filtering,
 154         .port_vlan_prepare      = mv88e6xxx_port_vlan_prepare,
 155         .port_vlan_add          = mv88e6xxx_port_vlan_add,
 156         .port_vlan_del          = mv88e6xxx_port_vlan_del,
 157         .port_vlan_dump         = mv88e6xxx_port_vlan_dump,
 158         .port_fdb_prepare       = mv88e6xxx_port_fdb_prepare,
 159         .port_fdb_add           = mv88e6xxx_port_fdb_add,
 160         .port_fdb_del           = mv88e6xxx_port_fdb_del,
 161         .port_fdb_dump          = mv88e6xxx_port_fdb_dump,
 162 };
 163
 164 MODULE_ALIAS("platform:mv88e6085");
 165 MODULE_ALIAS("platform:mv88e6095");
 166 MODULE_ALIAS("platform:mv88e6095f");
 167 MODULE_ALIAS("platform:mv88e6131");