diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/of_extra.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/dm/of_extra.h b/include/dm/of_extra.h index fc4f9743196..f0d205491c1 100644 --- a/include/dm/of_extra.h +++ b/include/dm/of_extra.h @@ -94,4 +94,24 @@ int ofnode_decode_memory_region(ofnode config_node, const char *mem_type, const char *suffix, fdt_addr_t *basep, fdt_size_t *sizep); +/** + * ofnode_phy_is_fixed_link() - Detect fixed-link pseudo-PHY device + * + * This function detects whether the ethernet controller connects to a + * fixed-link pseudo-PHY device. + * + * This function supports the following two DT bindings: + * - the new DT binding, where 'fixed-link' is a sub-node of the + * Ethernet device + * - the old DT binding, where 'fixed-link' is a property with 5 + * cells encoding various information about the fixed PHY + * + * If both new and old bindings exist, the new one is preferred. + * + * @param eth_node ofnode containing the fixed-link subnode/property + * @param phy_node if fixed-link PHY detected, containing the PHY ofnode + * @return true if a fixed-link pseudo-PHY device exists, false otherwise + */ +bool ofnode_phy_is_fixed_link(ofnode eth_node, ofnode *phy_node); + #endif |