diff options
| -rw-r--r-- | target/linux/octeon/patches-5.4/701-honor_sgmii_node_device_tree_status.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/octeon/patches-5.4/701-honor_sgmii_node_device_tree_status.patch b/target/linux/octeon/patches-5.4/701-honor_sgmii_node_device_tree_status.patch new file mode 100644 index 0000000000..af223dc314 --- /dev/null +++ b/target/linux/octeon/patches-5.4/701-honor_sgmii_node_device_tree_status.patch @@ -0,0 +1,27 @@ +From: Roman Kuzmitskii <damex.pp@icloud.com> +Date: Sun, 01 Nov 2020 19:00:00 +0000 +Subject: [PATCH] staging: octeon: sgmii to honor disabled dt node status + +With this patch, sgmii interface device tree node could be disabled and +that disabled interface will not be unnecessarily initialized. + +It solves the problem with Octeon boards that have 8 sgmii or more ports +initialized but have nothing connected to them. + +Tested-by: Johannes Kimmel <fff@bareminimum.eu> +Signed-off-by: Roman Kuzmitskii <damex.pp@icloud.com> +--- a/drivers/staging/octeon/ethernet.c ++++ b/drivers/staging/octeon/ethernet.c +@@ -884,8 +884,10 @@ + + case CVMX_HELPER_INTERFACE_MODE_SGMII: + priv->phy_mode = PHY_INTERFACE_MODE_SGMII; +- dev->netdev_ops = &cvm_oct_sgmii_netdev_ops; +- strscpy(dev->name, "eth%d", sizeof(dev->name)); ++ if (of_device_is_available(priv->of_node)) { ++ dev->netdev_ops = &cvm_oct_sgmii_netdev_ops; ++ strscpy(dev->name, "eth%d", sizeof(dev->name)); ++ } + break; + + case CVMX_HELPER_INTERFACE_MODE_SPI: |