target/linux/apm821xx/patches-4.4/002-powerpc_ibm_phy_add_ar8035.patch

   1 From 0c13957a43a90b1522eb616f3c9967ec44e4da1d Mon Sep 17 00:00:00 2001
   2 From: Christian Lamparter <chunkeey@googlemail.com>
   3 Date: Tue, 3 May 2016 13:58:24 +0200
   4 Subject: [PATCH] drivers: net: emac: add Atheros AR8035 phy initialization
   5  code
   6 To: netdev@vger.kernel.org
   7
   8 This patch adds the phy initialization code for Qualcomm
   9 Atheros AR8035 phy. This configuration is found in the
  10 Cisco Meraki MR24.
  11
  12 Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
  13 ---
  14  drivers/net/ethernet/ibm/emac/phy.c | 26 ++++++++++++++++++++++++++
  15  1 file changed, 26 insertions(+)
  16
  17 diff --git a/drivers/net/ethernet/ibm/emac/phy.c b/drivers/net/ethernet/ibm/emac/phy.c
  18 index d3b9d10..5b88cc6 100644
  19 --- a/drivers/net/ethernet/ibm/emac/phy.c
  20 +++ b/drivers/net/ethernet/ibm/emac/phy.c
  21 @@ -470,12 +470,38 @@ static struct mii_phy_def m88e1112_phy_def = {
  22         .ops            = &m88e1112_phy_ops,
  23  };
  24
  25 +static int ar8035_init(struct mii_phy *phy)
  26 +{
  27 +       phy_write(phy, 0x1d, 0x5); /* Address debug register 5 */
  28 +       phy_write(phy, 0x1e, 0x2d47); /* Value copied from u-boot */
  29 +       phy_write(phy, 0x1d, 0xb);    /* Address hib ctrl */
  30 +       phy_write(phy, 0x1e, 0xbc20); /* Value copied from u-boot */
  31 +
  32 +       return 0;
  33 +}
  34 +
  35 +static struct mii_phy_ops ar8035_phy_ops = {
  36 +       .init           = ar8035_init,
  37 +       .setup_aneg     = genmii_setup_aneg,
  38 +       .setup_forced   = genmii_setup_forced,
  39 +       .poll_link      = genmii_poll_link,
  40 +       .read_link      = genmii_read_link,
  41 +};
  42 +
  43 +static struct mii_phy_def ar8035_phy_def = {
  44 +       .phy_id         = 0x004dd070,
  45 +       .phy_id_mask    = 0xfffffff0,
  46 +       .name           = "Atheros 8035 Gigabit Ethernet",
  47 +       .ops            = &ar8035_phy_ops,
  48 +};
  49 +
  50  static struct mii_phy_def *mii_phy_table[] = {
  51         &et1011c_phy_def,
  52         &cis8201_phy_def,
  53         &bcm5248_phy_def,
  54         &m88e1111_phy_def,
  55         &m88e1112_phy_def,
  56 +       &ar8035_phy_def,
  57         &genmii_phy_def,
  58         NULL
  59  };
  60 --
  61 2.8.1
  62