drivers/net/dsa/ocelot/ocelot_ext.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Copyright 2021-2022 Innovative Advantage Inc.
   4  */
   5
   6 #include <linux/mfd/ocelot.h>
   7 #include <linux/platform_device.h>
   8 #include <linux/regmap.h>
   9 #include <soc/mscc/ocelot.h>
  10 #include <soc/mscc/vsc7514_regs.h>
  11 #include "felix.h"
  12
  13 #define VSC7514_NUM_PORTS               11
  14
  15 #define OCELOT_PORT_MODE_SERDES         (OCELOT_PORT_MODE_SGMII | \
  16                                          OCELOT_PORT_MODE_QSGMII)
  17
  18 static const u32 vsc7512_port_modes[VSC7514_NUM_PORTS] = {
  19         OCELOT_PORT_MODE_INTERNAL,
  20         OCELOT_PORT_MODE_INTERNAL,
  21         OCELOT_PORT_MODE_INTERNAL,
  22         OCELOT_PORT_MODE_INTERNAL,
  23         OCELOT_PORT_MODE_SERDES,
  24         OCELOT_PORT_MODE_SERDES,
  25         OCELOT_PORT_MODE_SERDES,
  26         OCELOT_PORT_MODE_SERDES,
  27         OCELOT_PORT_MODE_SERDES,
  28         OCELOT_PORT_MODE_SGMII,
  29         OCELOT_PORT_MODE_SERDES,
  30 };
  31
  32 static const struct ocelot_ops ocelot_ext_ops = {
  33         .reset          = ocelot_reset,
  34         .wm_enc         = ocelot_wm_enc,
  35         .wm_dec         = ocelot_wm_dec,
  36         .wm_stat        = ocelot_wm_stat,
  37         .port_to_netdev = felix_port_to_netdev,
  38         .netdev_to_port = felix_netdev_to_port,
  39 };
  40
  41 static const char * const vsc7512_resource_names[TARGET_MAX] = {
  42         [SYS] = "sys",
  43         [REW] = "rew",
  44         [S0] = "s0",
  45         [S1] = "s1",
  46         [S2] = "s2",
  47         [QS] = "qs",
  48         [QSYS] = "qsys",
  49         [ANA] = "ana",
  50 };
  51
  52 static const struct felix_info vsc7512_info = {
  53         .resource_names                 = vsc7512_resource_names,
  54         .regfields                      = vsc7514_regfields,
  55         .map                            = vsc7514_regmap,
  56         .ops                            = &ocelot_ext_ops,
  57         .vcap                           = vsc7514_vcap_props,
  58         .num_mact_rows                  = 1024,
  59         .num_ports                      = VSC7514_NUM_PORTS,
  60         .port_modes                     = vsc7512_port_modes,
  61         .phylink_mac_config             = ocelot_phylink_mac_config,
  62         .configure_serdes               = ocelot_port_configure_serdes,
  63 };
  64
  65 static int ocelot_ext_probe(struct platform_device *pdev)
  66 {
  67         return felix_register_switch(&pdev->dev, 0, 1, false, false,
  68                                      DSA_TAG_PROTO_OCELOT, &vsc7512_info);
  69 }
  70
  71 static void ocelot_ext_remove(struct platform_device *pdev)
  72 {
  73         struct felix *felix = dev_get_drvdata(&pdev->dev);
  74
  75         if (!felix)
  76                 return;
  77
  78         dsa_unregister_switch(felix->ds);
  79 }
  80
  81 static void ocelot_ext_shutdown(struct platform_device *pdev)
  82 {
  83         struct felix *felix = dev_get_drvdata(&pdev->dev);
  84
  85         if (!felix)
  86                 return;
  87
  88         dsa_switch_shutdown(felix->ds);
  89
  90         dev_set_drvdata(&pdev->dev, NULL);
  91 }
  92
  93 static const struct of_device_id ocelot_ext_switch_of_match[] = {
  94         { .compatible = "mscc,vsc7512-switch" },
  95         { },
  96 };
  97 MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);
  98
  99 static struct platform_driver ocelot_ext_switch_driver = {
 100         .driver = {
 101                 .name = "ocelot-ext-switch",
 102                 .of_match_table = ocelot_ext_switch_of_match,
 103         },
 104         .probe = ocelot_ext_probe,
 105         .remove = ocelot_ext_remove,
 106         .shutdown = ocelot_ext_shutdown,
 107 };
 108 module_platform_driver(ocelot_ext_switch_driver);
 109
 110 MODULE_DESCRIPTION("External Ocelot Switch driver");
 111 MODULE_LICENSE("GPL");
 112 MODULE_IMPORT_NS(MFD_OCELOT);