target/linux/mvebu/patches-4.9/473-fix-marvell-phy-initialization-issues.patch

   1 From: Marko Ratkaj <marko.ratkaj@sartura.hr>
   2 Date: Fri, 7 Apr 2017 13:30:30 +0200
   3 Subject: [PATCH] fix marvell phy initialization issues
   4
   5 Fix Marvell PHYs initialization issues and optimize
   6 logic for page changing during init
   7
   8 Board affected with initialization bug:
   9   SolidRun ClearFog Base
  10
  11 Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>
  12 ---
  13  drivers/net/phy/marvell.c | 9 ++++-----
  14  1 file changed, 4 insertions(+), 5 deletions(-)
  15
  16 --- a/drivers/net/phy/marvell.c
  17 +++ b/drivers/net/phy/marvell.c
  18 @@ -369,7 +369,7 @@ static int m88e1111_config_aneg(struct p
  19  static int marvell_of_reg_init(struct phy_device *phydev)
  20  {
  21         const __be32 *paddr;
  22 -       int len, i, saved_page, current_page, page_changed, ret;
  23 +       int len, i, saved_page, current_page, ret;
  24
  25         if (!phydev->mdio.dev.of_node)
  26                 return 0;
  27 @@ -382,7 +382,6 @@ static int marvell_of_reg_init(struct ph
  28         saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  29         if (saved_page < 0)
  30                 return saved_page;
  31 -       page_changed = 0;
  32         current_page = saved_page;
  33
  34         ret = 0;
  35 @@ -396,7 +395,6 @@ static int marvell_of_reg_init(struct ph
  36
  37                 if (reg_page != current_page) {
  38                         current_page = reg_page;
  39 -                       page_changed = 1;
  40                         ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
  41                         if (ret < 0)
  42                                 goto err;
  43 @@ -419,7 +417,7 @@ static int marvell_of_reg_init(struct ph
  44
  45         }
  46  err:
  47 -       if (page_changed) {
  48 +       if (current_page != saved_page) {
  49                 i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
  50                 if (ret == 0)
  51                         ret = i;