target/linux/generic/backport-5.10/710-v5.12-net-phy-Add-100-base-x-mode.patch

   1 From b1ae3587d16a8c8fc9453e147c8708d6f006ffbb Mon Sep 17 00:00:00 2001
   2 From: Bjarni Jonasson <bjarni.jonasson@microchip.com>
   3 Date: Wed, 13 Jan 2021 12:56:25 +0100
   4 Subject: [PATCH] net: phy: Add 100 base-x mode
   5
   6 Sparx-5 supports this mode and it is missing in the PHY core.
   7
   8 Signed-off-by: Bjarni Jonasson <bjarni.jonasson@microchip.com>
   9 Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
  10 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  11 ---
  12  Documentation/networking/phy.rst | 5 +++++
  13  include/linux/phy.h              | 4 ++++
  14  2 files changed, 9 insertions(+)
  15
  16 --- a/Documentation/networking/phy.rst
  17 +++ b/Documentation/networking/phy.rst
  18 @@ -286,6 +286,11 @@ Some of the interface modes are describe
  19      Note: due to legacy usage, some 10GBASE-R usage incorrectly makes
  20      use of this definition.
  21
  22 +``PHY_INTERFACE_MODE_100BASEX``
  23 +    This defines IEEE 802.3 Clause 24.  The link operates at a fixed data
  24 +    rate of 125Mpbs using a 4B/5B encoding scheme, resulting in an underlying
  25 +    data rate of 100Mpbs.
  26 +
  27  Pause frames / flow control
  28  ===========================
  29
  30 --- a/include/linux/phy.h
  31 +++ b/include/linux/phy.h
  32 @@ -104,6 +104,7 @@ extern const int phy_10gbit_features_arr
  33   * @PHY_INTERFACE_MODE_MOCA: Multimedia over Coax
  34   * @PHY_INTERFACE_MODE_QSGMII: Quad SGMII
  35   * @PHY_INTERFACE_MODE_TRGMII: Turbo RGMII
  36 + * @PHY_INTERFACE_MODE_100BASEX: 100 BaseX
  37   * @PHY_INTERFACE_MODE_1000BASEX: 1000 BaseX
  38   * @PHY_INTERFACE_MODE_2500BASEX: 2500 BaseX
  39   * @PHY_INTERFACE_MODE_RXAUI: Reduced XAUI
  40 @@ -135,6 +136,7 @@ typedef enum {
  41         PHY_INTERFACE_MODE_MOCA,
  42         PHY_INTERFACE_MODE_QSGMII,
  43         PHY_INTERFACE_MODE_TRGMII,
  44 +       PHY_INTERFACE_MODE_100BASEX,
  45         PHY_INTERFACE_MODE_1000BASEX,
  46         PHY_INTERFACE_MODE_2500BASEX,
  47         PHY_INTERFACE_MODE_RXAUI,
  48 @@ -217,6 +219,8 @@ static inline const char *phy_modes(phy_
  49                 return "usxgmii";
  50         case PHY_INTERFACE_MODE_10GKR:
  51                 return "10gbase-kr";
  52 +       case PHY_INTERFACE_MODE_100BASEX:
  53 +               return "100base-x";
  54         default:
  55                 return "unknown";
  56         }