drivers/net/dsa/mv88e6123.c

   1 /*
   2  * net/dsa/mv88e6123_61_65.c - Marvell 88e6123/6161/6165 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 mv88e6123_table[] = {
  21         {
  22                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6123,
  23                 .family = MV88E6XXX_FAMILY_6165,
  24                 .name = "Marvell 88E6123",
  25                 .num_databases = 4096,
  26                 .num_ports = 3,
  27                 .flags = MV88E6XXX_FLAGS_FAMILY_6165,
  28         }, {
  29                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6161,
  30                 .family = MV88E6XXX_FAMILY_6165,
  31                 .name = "Marvell 88E6161",
  32                 .num_databases = 4096,
  33                 .num_ports = 6,
  34                 .flags = MV88E6XXX_FLAGS_FAMILY_6165,
  35         }, {
  36                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6165,
  37                 .family = MV88E6XXX_FAMILY_6165,
  38                 .name = "Marvell 88E6165",
  39                 .num_databases = 4096,
  40                 .num_ports = 6,
  41                 .flags = MV88E6XXX_FLAGS_FAMILY_6165,
  42         }
  43 };
  44
  45 static const char *mv88e6123_drv_probe(struct device *dsa_dev,
  46                                        struct device *host_dev, int sw_addr,
  47                                        void **priv)
  48 {
  49         return mv88e6xxx_drv_probe(dsa_dev, host_dev, sw_addr, priv,
  50                                    mv88e6123_table,
  51                                    ARRAY_SIZE(mv88e6123_table));
  52 }
  53
  54 static int mv88e6123_setup_global(struct dsa_switch *ds)
  55 {
  56         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
  57         u32 upstream_port = dsa_upstream_port(ds);
  58         int ret;
  59         u32 reg;
  60
  61         ret = mv88e6xxx_setup_global(ds);
  62         if (ret)
  63                 return ret;
  64
  65         /* Disable the PHY polling unit (since there won't be any
  66          * external PHYs to poll), don't discard packets with
  67          * excessive collisions, and mask all interrupt sources.
  68          */
  69         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL, 0x0000);
  70         if (ret)
  71                 return ret;
  72
  73         /* Configure the upstream port, and configure the upstream
  74          * port as the port to which ingress and egress monitor frames
  75          * are to be sent.
  76          */
  77         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
  78                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
  79                 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
  80         ret = mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
  81         if (ret)
  82                 return ret;
  83
  84         /* Disable remote management for now, and set the switch's
  85          * DSA device number.
  86          */
  87         return mv88e6xxx_reg_write(ps, REG_GLOBAL, GLOBAL_CONTROL_2,
  88                                    ds->index & 0x1f);
  89 }
  90
  91 static int mv88e6123_setup(struct dsa_switch *ds)
  92 {
  93         struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
  94         int ret;
  95
  96         ps->ds = ds;
  97
  98         ret = mv88e6xxx_setup_common(ps);
  99         if (ret < 0)
 100                 return ret;
 101
 102         ret = mv88e6xxx_switch_reset(ps, false);
 103         if (ret < 0)
 104                 return ret;
 105
 106         ret = mv88e6123_setup_global(ds);
 107         if (ret < 0)
 108                 return ret;
 109
 110         return mv88e6xxx_setup_ports(ds);
 111 }
 112
 113 struct dsa_switch_driver mv88e6123_switch_driver = {
 114         .tag_protocol           = DSA_TAG_PROTO_EDSA,
 115         .probe                  = mv88e6123_drv_probe,
 116         .setup                  = mv88e6123_setup,
 117         .set_addr               = mv88e6xxx_set_addr,
 118         .phy_read               = mv88e6xxx_phy_read,
 119         .phy_write              = mv88e6xxx_phy_write,
 120         .set_eee                = mv88e6xxx_set_eee,
 121         .get_eee                = mv88e6xxx_get_eee,
 122         .get_strings            = mv88e6xxx_get_strings,
 123         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 124         .get_sset_count         = mv88e6xxx_get_sset_count,
 125         .adjust_link            = mv88e6xxx_adjust_link,
 126 #ifdef CONFIG_NET_DSA_HWMON
 127         .get_temp               = mv88e6xxx_get_temp,
 128         .get_temp_limit         = mv88e6xxx_get_temp_limit,
 129         .set_temp_limit         = mv88e6xxx_set_temp_limit,
 130         .get_temp_alarm         = mv88e6xxx_get_temp_alarm,
 131 #endif
 132         .get_eeprom             = mv88e6xxx_get_eeprom,
 133         .set_eeprom             = mv88e6xxx_set_eeprom,
 134         .get_regs_len           = mv88e6xxx_get_regs_len,
 135         .get_regs               = mv88e6xxx_get_regs,
 136         .port_bridge_join       = mv88e6xxx_port_bridge_join,
 137         .port_bridge_leave      = mv88e6xxx_port_bridge_leave,
 138         .port_stp_state_set     = mv88e6xxx_port_stp_state_set,
 139         .port_vlan_filtering    = mv88e6xxx_port_vlan_filtering,
 140         .port_vlan_prepare      = mv88e6xxx_port_vlan_prepare,
 141         .port_vlan_add          = mv88e6xxx_port_vlan_add,
 142         .port_vlan_del          = mv88e6xxx_port_vlan_del,
 143         .port_vlan_dump         = mv88e6xxx_port_vlan_dump,
 144 };
 145
 146 MODULE_ALIAS("platform:mv88e6123");
 147 MODULE_ALIAS("platform:mv88e6161");
 148 MODULE_ALIAS("platform:mv88e6165");