target/linux/generic/hack-4.9/773-bgmac-add-srab-switch.patch

   1 From 3cb240533ab787899dc7f17aa7d6c5b4810e2e58 Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Fri, 7 Jul 2017 17:26:01 +0200
   4 Subject: bcm53xx: bgmac: use srab switch driver
   5
   6 use the srab switch driver on these SoCs.
   7
   8 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
   9 ---
  10  drivers/net/ethernet/broadcom/bgmac-bcma.c |  1 +
  11  drivers/net/ethernet/broadcom/bgmac.c      | 24 ++++++++++++++++++++++++
  12  drivers/net/ethernet/broadcom/bgmac.h      |  4 ++++
  13  3 files changed, 29 insertions(+)
  14
  15 --- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
  16 +++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
  17 @@ -236,6 +236,7 @@ static int bgmac_probe(struct bcma_devic
  18                 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
  19                 bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
  20                 bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
  21 +               bgmac->feature_flags |= BGMAC_FEAT_SRAB;
  22                 break;
  23         case BCMA_CHIP_ID_BCM53573:
  24                 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
  25 --- a/drivers/net/ethernet/broadcom/bgmac.c
  26 +++ b/drivers/net/ethernet/broadcom/bgmac.c
  27 @@ -11,6 +11,7 @@
  28
  29  #include <linux/bcma/bcma.h>
  30  #include <linux/etherdevice.h>
  31 +#include <linux/platform_data/b53.h>
  32  #include <linux/bcm47xx_nvram.h>
  33  #include "bgmac.h"
  34
  35 @@ -1387,6 +1388,17 @@ static const struct ethtool_ops bgmac_et
  36         .set_link_ksettings     = phy_ethtool_set_link_ksettings,
  37  };
  38
  39 +static struct b53_platform_data bgmac_b53_pdata = {
  40 +};
  41 +
  42 +static struct platform_device bgmac_b53_dev = {
  43 +       .name           = "b53-srab-switch",
  44 +       .id             = -1,
  45 +       .dev            = {
  46 +               .platform_data = &bgmac_b53_pdata,
  47 +       },
  48 +};
  49 +
  50  /**************************************************
  51   * MII
  52   **************************************************/
  53 @@ -1533,6 +1545,14 @@ int bgmac_enet_probe(struct bgmac *bgmac
  54         net_dev->hw_features = net_dev->features;
  55         net_dev->vlan_features = net_dev->features;
  56
  57 +       if ((bgmac->feature_flags & BGMAC_FEAT_SRAB) && !bgmac_b53_pdata.regs) {
  58 +               bgmac_b53_pdata.regs = ioremap_nocache(0x18007000, 0x1000);
  59 +
  60 +               err = platform_device_register(&bgmac_b53_dev);
  61 +               if (!err)
  62 +                       bgmac->b53_device = &bgmac_b53_dev;
  63 +       }
  64 +
  65         err = register_netdev(bgmac->net_dev);
  66         if (err) {
  67                 dev_err(bgmac->dev, "Cannot register net device\n");
  68 @@ -1555,6 +1575,10 @@ EXPORT_SYMBOL_GPL(bgmac_enet_probe);
  69
  70  void bgmac_enet_remove(struct bgmac *bgmac)
  71  {
  72 +       if (bgmac->b53_device)
  73 +               platform_device_unregister(&bgmac_b53_dev);
  74 +       bgmac->b53_device = NULL;
  75 +
  76         unregister_netdev(bgmac->net_dev);
  77         phy_disconnect(bgmac->net_dev->phydev);
  78         netif_napi_del(&bgmac->napi);
  79 --- a/drivers/net/ethernet/broadcom/bgmac.h
  80 +++ b/drivers/net/ethernet/broadcom/bgmac.h
  81 @@ -409,6 +409,7 @@
  82  #define BGMAC_FEAT_CC4_IF_SW_TYPE      BIT(17)
  83  #define BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII        BIT(18)
  84  #define BGMAC_FEAT_CC7_IF_TYPE_RGMII   BIT(19)
  85 +#define BGMAC_FEAT_SRAB                        BIT(20)
  86
  87  struct bgmac_slot_info {
  88         union {
  89 @@ -513,6 +514,9 @@ struct bgmac {
  90         u32 (*get_bus_clock)(struct bgmac *bgmac);
  91         void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
  92                               u32 set);
  93 +
  94 +       /* platform device for associated switch */
  95 +       struct platform_device *b53_device;
  96  };
  97
  98  struct bgmac *bgmac_alloc(struct device *dev);