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         }, {
  28                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6175,
  29                 .family = MV88E6XXX_FAMILY_6351,
  30                 .name = "Marvell 88E6175",
  31                 .num_databases = 4096,
  32                 .num_ports = 7,
  33         }, {
  34                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6350,
  35                 .family = MV88E6XXX_FAMILY_6351,
  36                 .name = "Marvell 88E6350",
  37                 .num_databases = 4096,
  38                 .num_ports = 7,
  39         }, {
  40                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6351,
  41                 .family = MV88E6XXX_FAMILY_6351,
  42                 .name = "Marvell 88E6351",
  43                 .num_databases = 4096,
  44                 .num_ports = 7,
  45         }
  46 };
  47
  48 static const char *mv88e6171_drv_probe(struct device *dsa_dev,
  49                                        struct device *host_dev, int sw_addr,
  50                                        void **priv)
  51 {
  52         return mv88e6xxx_drv_probe(dsa_dev, host_dev, sw_addr, priv,
  53                                    mv88e6171_table,
  54                                    ARRAY_SIZE(mv88e6171_table));
  55 }
  56
  57 static int mv88e6171_setup_global(struct dsa_switch *ds)
  58 {
  59         u32 upstream_port = dsa_upstream_port(ds);
  60         int ret;
  61         u32 reg;
  62
  63         ret = mv88e6xxx_setup_global(ds);
  64         if (ret)
  65                 return ret;
  66
  67         /* Discard packets with excessive collisions, mask all
  68          * interrupt sources, enable PPU.
  69          */
  70         ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_CONTROL,
  71                                   GLOBAL_CONTROL_PPU_ENABLE |
  72                                   GLOBAL_CONTROL_DISCARD_EXCESS);
  73         if (ret)
  74                 return ret;
  75
  76         /* Configure the upstream port, and configure the upstream
  77          * port as the port to which ingress and egress monitor frames
  78          * are to be sent.
  79          */
  80         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
  81                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
  82                 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
  83                 upstream_port << GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT;
  84         ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
  85         if (ret)
  86                 return ret;
  87
  88         /* Disable remote management for now, and set the switch's
  89          * DSA device number.
  90          */
  91         return mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_CONTROL_2,
  92                                    ds->index & 0x1f);
  93 }
  94
  95 static int mv88e6171_setup(struct dsa_switch *ds)
  96 {
  97         int ret;
  98
  99         ret = mv88e6xxx_setup_common(ds);
 100         if (ret < 0)
 101                 return ret;
 102
 103         ret = mv88e6xxx_switch_reset(ds, true);
 104         if (ret < 0)
 105                 return ret;
 106
 107         ret = mv88e6171_setup_global(ds);
 108         if (ret < 0)
 109                 return ret;
 110
 111         return mv88e6xxx_setup_ports(ds);
 112 }
 113
 114 struct dsa_switch_driver mv88e6171_switch_driver = {
 115         .tag_protocol           = DSA_TAG_PROTO_EDSA,
 116         .probe                  = mv88e6171_drv_probe,
 117         .setup                  = mv88e6171_setup,
 118         .set_addr               = mv88e6xxx_set_addr_indirect,
 119         .phy_read               = mv88e6xxx_phy_read_indirect,
 120         .phy_write              = mv88e6xxx_phy_write_indirect,
 121         .get_strings            = mv88e6xxx_get_strings,
 122         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 123         .get_sset_count         = mv88e6xxx_get_sset_count,
 124         .adjust_link            = mv88e6xxx_adjust_link,
 125 #ifdef CONFIG_NET_DSA_HWMON
 126         .get_temp               = mv88e6xxx_get_temp,
 127 #endif
 128         .get_regs_len           = mv88e6xxx_get_regs_len,
 129         .get_regs               = mv88e6xxx_get_regs,
 130         .port_bridge_join       = mv88e6xxx_port_bridge_join,
 131         .port_bridge_leave      = mv88e6xxx_port_bridge_leave,
 132         .port_stp_state_set     = mv88e6xxx_port_stp_state_set,
 133         .port_vlan_filtering    = mv88e6xxx_port_vlan_filtering,
 134         .port_vlan_prepare      = mv88e6xxx_port_vlan_prepare,
 135         .port_vlan_add          = mv88e6xxx_port_vlan_add,
 136         .port_vlan_del          = mv88e6xxx_port_vlan_del,
 137         .port_vlan_dump         = mv88e6xxx_port_vlan_dump,
 138         .port_fdb_prepare       = mv88e6xxx_port_fdb_prepare,
 139         .port_fdb_add           = mv88e6xxx_port_fdb_add,
 140         .port_fdb_del           = mv88e6xxx_port_fdb_del,
 141         .port_fdb_dump          = mv88e6xxx_port_fdb_dump,
 142 };
 143
 144 MODULE_ALIAS("platform:mv88e6171");
 145 MODULE_ALIAS("platform:mv88e6175");
 146 MODULE_ALIAS("platform:mv88e6350");
 147 MODULE_ALIAS("platform:mv88e6351");