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_ports = 3,
  26         }, {
  27                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6161,
  28                 .family = MV88E6XXX_FAMILY_6165,
  29                 .name = "Marvell 88E6161",
  30                 .num_ports = 6,
  31         }, {
  32                 .prod_num = PORT_SWITCH_ID_PROD_NUM_6165,
  33                 .family = MV88E6XXX_FAMILY_6165,
  34                 .name = "Marvell 88E6165",
  35                 .num_ports = 6,
  36         }
  37 };
  38
  39 static const char *mv88e6123_drv_probe(struct device *dsa_dev,
  40                                        struct device *host_dev, int sw_addr,
  41                                        void **priv)
  42 {
  43         return mv88e6xxx_drv_probe(dsa_dev, host_dev, sw_addr, priv,
  44                                    mv88e6123_table,
  45                                    ARRAY_SIZE(mv88e6123_table));
  46 }
  47
  48 static int mv88e6123_setup_global(struct dsa_switch *ds)
  49 {
  50         u32 upstream_port = dsa_upstream_port(ds);
  51         int ret;
  52         u32 reg;
  53
  54         ret = mv88e6xxx_setup_global(ds);
  55         if (ret)
  56                 return ret;
  57
  58         /* Disable the PHY polling unit (since there won't be any
  59          * external PHYs to poll), don't discard packets with
  60          * excessive collisions, and mask all interrupt sources.
  61          */
  62         ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_CONTROL, 0x0000);
  63         if (ret)
  64                 return ret;
  65
  66         /* Configure the upstream port, and configure the upstream
  67          * port as the port to which ingress and egress monitor frames
  68          * are to be sent.
  69          */
  70         reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
  71                 upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
  72                 upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
  73         ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
  74         if (ret)
  75                 return ret;
  76
  77         /* Disable remote management for now, and set the switch's
  78          * DSA device number.
  79          */
  80         return mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_CONTROL_2,
  81                                    ds->index & 0x1f);
  82 }
  83
  84 static int mv88e6123_setup(struct dsa_switch *ds)
  85 {
  86         int ret;
  87
  88         ret = mv88e6xxx_setup_common(ds);
  89         if (ret < 0)
  90                 return ret;
  91
  92         ret = mv88e6xxx_switch_reset(ds, false);
  93         if (ret < 0)
  94                 return ret;
  95
  96         ret = mv88e6123_setup_global(ds);
  97         if (ret < 0)
  98                 return ret;
  99
 100         return mv88e6xxx_setup_ports(ds);
 101 }
 102
 103 struct dsa_switch_driver mv88e6123_switch_driver = {
 104         .tag_protocol           = DSA_TAG_PROTO_EDSA,
 105         .probe                  = mv88e6123_drv_probe,
 106         .setup                  = mv88e6123_setup,
 107         .set_addr               = mv88e6xxx_set_addr_indirect,
 108         .phy_read               = mv88e6xxx_phy_read,
 109         .phy_write              = mv88e6xxx_phy_write,
 110         .get_strings            = mv88e6xxx_get_strings,
 111         .get_ethtool_stats      = mv88e6xxx_get_ethtool_stats,
 112         .get_sset_count         = mv88e6xxx_get_sset_count,
 113         .adjust_link            = mv88e6xxx_adjust_link,
 114 #ifdef CONFIG_NET_DSA_HWMON
 115         .get_temp               = mv88e6xxx_get_temp,
 116 #endif
 117         .get_regs_len           = mv88e6xxx_get_regs_len,
 118         .get_regs               = mv88e6xxx_get_regs,
 119 };
 120
 121 MODULE_ALIAS("platform:mv88e6123");
 122 MODULE_ALIAS("platform:mv88e6161");
 123 MODULE_ALIAS("platform:mv88e6165");