drivers/net/dsa/mv88e6352.c

   1 /*
   2  * net/dsa/mv88e6352.c - Marvell 88e6352 switch chip support
   3  *
   4  * Copyright (c) 2014 Guenter Roeck
   5  *
   6  * Derived from mv88e6123_61_65.c
   7  * Copyright (c) 2008-2009 Marvell Semiconductor
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  */
  14
  15 #include <linux/delay.h>
  16 #include <linux/jiffies.h>
  17 #include <linux/list.h>
  18 #include <linux/module.h>
  19 #include <linux/netdevice.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/phy.h>
  22 #include <net/dsa.h>
  23 #include "mv88e6xxx.h"
  24
  25 static const struct mv88e6xxx_info mv88e6352_table[] = {
  26         {
  27                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6320,
  28                 .family = MV88E6XXX_FAMILY_6320,
  29                 .name = "Marvell 88E6320",
  30                 .num_databases = 4096,
  31                 .num_ports = 7,
  32                 .flags = MV88E6XXX_FLAGS_FAMILY_6320,
  33         }, {
  34                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6321,
  35                 .family = MV88E6XXX_FAMILY_6320,
  36                 .name = "Marvell 88E6321",
  37                 .num_databases = 4096,
  38                 .num_ports = 7,
  39                 .flags = MV88E6XXX_FLAGS_FAMILY_6320,
  40         }, {
  41                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6172,
  42                 .family = MV88E6XXX_FAMILY_6352,
  43                 .name = "Marvell 88E6172",
  44                 .num_databases = 4096,
  45                 .num_ports = 7,
  46                 .flags = MV88E6XXX_FLAGS_FAMILY_6352,
  47         }, {
  48                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6176,
  49                 .family = MV88E6XXX_FAMILY_6352,
  50                 .name = "Marvell 88E6176",
  51                 .num_databases = 4096,
  52                 .num_ports = 7,
  53                 .flags = MV88E6XXX_FLAGS_FAMILY_6352,
  54         }, {
  55                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6240,
  56                 .family = MV88E6XXX_FAMILY_6352,
  57                 .name = "Marvell 88E6240",
  58                 .num_databases = 4096,
  59                 .num_ports = 7,
  60                 .flags = MV88E6XXX_FLAGS_FAMILY_6352,
  61         }, {
  62                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6352,
  63                 .family = MV88E6XXX_FAMILY_6352,
  64                 .name = "Marvell 88E6352",
  65                 .num_databases = 4096,
  66                 .num_ports = 7,
  67                 .flags = MV88E6XXX_FLAGS_FAMILY_6352,
  68         }
  69 };
  70
  71 static const char *mv88e6352_drv_probe(struct device *dsa_dev,
  72                                        struct device *host_dev, int sw_addr,
  73                                        void **priv)
  74 {
  75         return mv88e6xxx_drv_probe(dsa_dev, host_dev, sw_addr, priv,
  76                                    mv88e6352_table,
  77                                    ARRAY_SIZE(mv88e6352_table));
  78 }
  79
  80 static int mv88e6352_setup_global(struct dsa_switch *ds)
  81 {
  82         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
  83         u32 upstream_port = dsa_upstream_port(ds);
  84         int ret;
  85         u32 reg;
  86
  87         ret = mv88e6xxx_setup_global(ds);
  88         if (ret)
  89                 return ret;
  90
  91         /* Discard packets with excessive collisions,
  92          * mask all interrupt sources, enable PPU (bit 14, undocumented).
  93          */
  94         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL,
  95                                   GLOBAL_CONTROL_PPU_ENABLE |
  96                                   GLOBAL_CONTROL_DISCARD_EXCESS);
  97         if (ret)
  98                 return ret;
  99
 100         /* Configure the upstream port, and configure the upstream
 101          * port as the port to which ingress and egress monitor frames
 102          * are to be sent.
 103          */
 104         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
 105                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
 106                 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
 107         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 108         if (ret)
 109                 return ret;
 110
 111         /* Disable remote management for now, and set the switch's
 112          * DSA device number.
 113          */
 114         return mv88e6xxx_reg_write(ps, REG_GLOBAL, 0x1c, ds->index & 0x1f);
 115 }
 116
 117 static int mv88e6352_setup(struct dsa_switch *ds)
 118 {
 119         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 120         int ret;
 121
 122         ps->ds = ds;
 123
 124         ret = mv88e6xxx_setup_common(ps);
 125         if (ret < 0)
 126                 return ret;
 127
 128         ret = mv88e6352_setup_global(ds);
 129         if (ret < 0)
 130                 return ret;
 131
 132         return mv88e6xxx_setup_ports(ds);
 133 }
 134
 135 struct dsa_switch_driver mv88e6352_switch_driver = {
 136         .tag_protocol           = DSA_TAG_PROTO_EDSA,
 137         .probe                  = mv88e6352_drv_probe,
 138         .setup                  = mv88e6352_setup,
 139         .set_addr               = mv88e6xxx_set_addr,
 140         .phy_read               = mv88e6xxx_phy_read,
 141         .phy_write              = mv88e6xxx_phy_write,
 142         .get_strings            = mv88e6xxx_get_strings,
 143         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 144         .get_sset_count         = mv88e6xxx_get_sset_count,
 145         .adjust_link            = mv88e6xxx_adjust_link,
 146         .set_eee                = mv88e6xxx_set_eee,
 147         .get_eee                = mv88e6xxx_get_eee,
 148 #ifdef CONFIG_NET_DSA_HWMON
 149         .get_temp               = mv88e6xxx_get_temp,
 150         .get_temp_limit         = mv88e6xxx_get_temp_limit,
 151         .set_temp_limit         = mv88e6xxx_set_temp_limit,
 152         .get_temp_alarm         = mv88e6xxx_get_temp_alarm,
 153 #endif
 154         .get_eeprom             = mv88e6xxx_get_eeprom,
 155         .set_eeprom             = mv88e6xxx_set_eeprom,
 156         .get_regs_len           = mv88e6xxx_get_regs_len,
 157         .get_regs               = mv88e6xxx_get_regs,
 158         .port_bridge_join       = mv88e6xxx_port_bridge_join,
 159         .port_bridge_leave      = mv88e6xxx_port_bridge_leave,
 160         .port_stp_state_set     = mv88e6xxx_port_stp_state_set,
 161         .port_vlan_filtering    = mv88e6xxx_port_vlan_filtering,
 162         .port_vlan_prepare      = mv88e6xxx_port_vlan_prepare,
 163         .port_vlan_add          = mv88e6xxx_port_vlan_add,
 164         .port_vlan_del          = mv88e6xxx_port_vlan_del,
 165         .port_vlan_dump         = mv88e6xxx_port_vlan_dump,
 166         .port_fdb_prepare       = mv88e6xxx_port_fdb_prepare,
 167         .port_fdb_add           = mv88e6xxx_port_fdb_add,
 168         .port_fdb_del           = mv88e6xxx_port_fdb_del,
 169         .port_fdb_dump          = mv88e6xxx_port_fdb_dump,
 170 };
 171
 172 MODULE_ALIAS("platform:mv88e6172");
 173 MODULE_ALIAS("platform:mv88e6176");
 174 MODULE_ALIAS("platform:mv88e6320");
 175 MODULE_ALIAS("platform:mv88e6321");
 176 MODULE_ALIAS("platform:mv88e6352");