Since the commit 84cba72956fd ("dpaa2-switch: integrate the MAC endpoint support") included dpaa2-mac.o in the driver, but it didn't select PCS_LYNX, PHYLINK and FSL_XGMAC_MDIO. it will lead to link error, such as undefined reference to `phylink_ethtool_ksettings_set' undefined reference to `lynx_pcs_create_fwnode' And the same reason as the commit d2624e70a2f53 ("dpaa2-eth: select XGMAC_MDIO for MDIO bus support"), enable the FSL_XGMAC_MDIO Kconfig option in order to have MDIO access to internal and external PHYs. Because dpaa2-switch uses fsl_mc_driver APIs, add depends on FSL_MC_BUS && FSL_MC_DPIO as FSL_DPAA2_SWITCH do. FSL_XGMAC_MDIO and FSL_MC_BUS depend on OF, thus the dependence of FSL_MC_BUS can satisfy FSL_XGMAC_MDIO's OF requirement. Fixes: 84cba72956fd ("dpaa2-switch: integrate the MAC endpoint support") Suggested-by: Ioana Ciornei Signed-off-by: Cai Xinchen --- drivers/net/ethernet/freescale/dpaa2/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/freescale/dpaa2/Kconfig b/drivers/net/ethernet/freescale/dpaa2/Kconfig index d029b69c3f18..36280e5d99e1 100644 --- a/drivers/net/ethernet/freescale/dpaa2/Kconfig +++ b/drivers/net/ethernet/freescale/dpaa2/Kconfig @@ -34,6 +34,10 @@ config FSL_DPAA2_SWITCH tristate "Freescale DPAA2 Ethernet Switch" depends on BRIDGE || BRIDGE=n depends on NET_SWITCHDEV + depends on FSL_MC_BUS && FSL_MC_DPIO + select PHYLINK + select PCS_LYNX + select FSL_XGMAC_MDIO help Driver for Freescale DPAA2 Ethernet Switch. This driver manages switch objects discovered on the Freeescale MC bus. -- 2.34.1