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 Index: linux-4.9.34/drivers/net/ethernet/broadcom/bgmac-bcma.c
  16 ===================================================================
  17 --- linux-4.9.34.orig/drivers/net/ethernet/broadcom/bgmac-bcma.c
  18 +++ linux-4.9.34/drivers/net/ethernet/broadcom/bgmac-bcma.c
  19 @@ -230,6 +230,7 @@ static int bgmac_probe(struct bcma_devic
  20                 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
  21                 bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
  22                 bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
  23 +               bgmac->feature_flags |= BGMAC_FEAT_SRAB;
  24                 break;
  25         case BCMA_CHIP_ID_BCM53573:
  26                 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
  27 Index: linux-4.9.34/drivers/net/ethernet/broadcom/bgmac.c
  28 ===================================================================
  29 --- linux-4.9.34.orig/drivers/net/ethernet/broadcom/bgmac.c
  30 +++ linux-4.9.34/drivers/net/ethernet/broadcom/bgmac.c
  31 @@ -11,6 +11,7 @@
  32
  33  #include <linux/bcma/bcma.h>
  34  #include <linux/etherdevice.h>
  35 +#include <linux/platform_data/b53.h>
  36  #include <linux/bcm47xx_nvram.h>
  37  #include "bgmac.h"
  38
  39 @@ -1387,6 +1388,17 @@ static const struct ethtool_ops bgmac_et
  40         .set_link_ksettings     = phy_ethtool_set_link_ksettings,
  41  };
  42
  43 +static struct b53_platform_data bgmac_b53_pdata = {
  44 +};
  45 +
  46 +static struct platform_device bgmac_b53_dev = {
  47 +       .name           = "b53-srab-switch",
  48 +       .id             = -1,
  49 +       .dev            = {
  50 +               .platform_data = &bgmac_b53_pdata,
  51 +       },
  52 +};
  53 +
  54  /**************************************************
  55   * MII
  56   **************************************************/
  57 @@ -1533,6 +1545,14 @@ int bgmac_enet_probe(struct bgmac *bgmac
  58         net_dev->hw_features = net_dev->features;
  59         net_dev->vlan_features = net_dev->features;
  60
  61 +       if ((bgmac->feature_flags & BGMAC_FEAT_SRAB) && !bgmac_b53_pdata.regs) {
  62 +               bgmac_b53_pdata.regs = ioremap_nocache(0x18007000, 0x1000);
  63 +
  64 +               err = platform_device_register(&bgmac_b53_dev);
  65 +               if (!err)
  66 +                       bgmac->b53_device = &bgmac_b53_dev;
  67 +       }
  68 +
  69         err = register_netdev(bgmac->net_dev);
  70         if (err) {
  71                 dev_err(bgmac->dev, "Cannot register net device\n");
  72 @@ -1555,6 +1575,10 @@ EXPORT_SYMBOL_GPL(bgmac_enet_probe);
  73
  74  void bgmac_enet_remove(struct bgmac *bgmac)
  75  {
  76 +       if (bgmac->b53_device)
  77 +               platform_device_unregister(&bgmac_b53_dev);
  78 +       bgmac->b53_device = NULL;
  79 +
  80         unregister_netdev(bgmac->net_dev);
  81         phy_disconnect(bgmac->net_dev->phydev);
  82         netif_napi_del(&bgmac->napi);
  83 Index: linux-4.9.34/drivers/net/ethernet/broadcom/bgmac.h
  84 ===================================================================
  85 --- linux-4.9.34.orig/drivers/net/ethernet/broadcom/bgmac.h
  86 +++ linux-4.9.34/drivers/net/ethernet/broadcom/bgmac.h
  87 @@ -409,6 +409,7 @@
  88  #define BGMAC_FEAT_CC4_IF_SW_TYPE      BIT(17)
  89  #define BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII        BIT(18)
  90  #define BGMAC_FEAT_CC7_IF_TYPE_RGMII   BIT(19)
  91 +#define BGMAC_FEAT_SRAB                        BIT(20)
  92
  93  struct bgmac_slot_info {
  94         union {
  95 @@ -513,6 +514,9 @@ struct bgmac {
  96         u32 (*get_bus_clock)(struct bgmac *bgmac);
  97         void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
  98                               u32 set);
  99 +
 100 +       /* platform device for associated switch */
 101 +       struct platform_device *b53_device;
 102  };
 103
 104  struct bgmac *bgmac_alloc(struct device *dev);