diff options
Diffstat (limited to 'include/dm/of_extra.h')
| -rw-r--r-- | include/dm/of_extra.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/dm/of_extra.h b/include/dm/of_extra.h index f0d2054..c2498aa 100644 --- a/include/dm/of_extra.h +++ b/include/dm/of_extra.h @@ -114,4 +114,18 @@ int ofnode_decode_memory_region(ofnode config_node, const char *mem_type, */ bool ofnode_phy_is_fixed_link(ofnode eth_node, ofnode *phy_node); +/** + * ofnode_eth_uses_inband_aneg() - Detect whether MAC should use in-band autoneg + * + * This function detects whether the Ethernet controller should use IEEE 802.3 + * clause 37 in-band autonegotiation for serial protocols such as 1000base-x, + * SGMII, USXGMII, etc. The property is relevant when the Ethernet controller + * is connected to an on-board PHY or an SFP cage, and is not relevant when it + * has a fixed link (in that case, in-band autoneg should not be used). + * + * @param eth_node ofnode belonging to the Ethernet controller + * @return true if in-band autoneg should be used, false otherwise + */ +bool ofnode_eth_uses_inband_aneg(ofnode eth_node); + #endif |