This patch set adds support for changing the Ethernet protocol at runtime on Layerscape SoCs which have the Lynx 28G SerDes block. The first two patches add a new generic PHY driver for the Lynx 28G and the bindings file associated. The driver reads the PLL configuration at probe time (the frequency provided to the lanes) and determines what protocols can be supported. Based on this the driver can deny or approve a request from the dpaa2-mac to setup a new protocol. The next 2 patches add some MC APIs for inquiring what is the running version of firmware and setting up a new protocol on the MAC. Moving along, we extract the code for setting up the supported interfaces on a MAC on a different function since in the next patches will update the logic. In the next patch, the dpaa2-mac is updated so that it retrieves the SerDes PHY based on the OF node and in case of a major reconfig, call the PHY driver to set up the new protocol on the associated lane and the MC firmware to reconfigure the MAC side of things. Finally, the LX2160A dtsi is annotated with the SerDes PHY nodes for the 1st SerDes block. Beside this, the LX2160A Clearfog dtsi is annotated with the 'phys' property for the exposed SFP cages. Changes in v2: - 1/8: add MODULE_LICENSE Changes in v3: - 2/8: fix 'make dt_binding_check' errors - 7/8: reverse order of dpaa2_mac_start() and phylink_start() - 7/8: treat all RGMII variants in dpmac_eth_if_mode - 7/8: remove the .mac_prepare callback - 7/8: ignore PHY_INTERFACE_MODE_NA in validate Changes in v4: - 1/8: remove the DT nodes parsing - 1/8: add an xlate function - 2/8: remove the children phy nodes for each lane - 7/8: rework the of_phy_get if statement - 8/8: remove the DT nodes for each lane and the lane id in the phys phandle Ioana Ciornei (8): phy: add support for the Layerscape SerDes 28G dt-bindings: phy: add the "fsl,lynx-28g" compatible dpaa2-mac: add the MC API for retrieving the version dpaa2-mac: add the MC API for reconfiguring the protocol dpaa2-mac: retrieve API version and detect features dpaa2-mac: move setting up supported_interfaces into a function dpaa2-mac: configure the SerDes phy on a protocol change arch: arm64: dts: lx2160a: describe the SerDes block #1 .../devicetree/bindings/phy/fsl,lynx-28g.yaml | 40 ++ MAINTAINERS | 7 + .../freescale/fsl-lx2160a-clearfog-itx.dtsi | 4 + .../arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 6 + .../net/ethernet/freescale/dpaa2/dpaa2-eth.c | 5 +- .../net/ethernet/freescale/dpaa2/dpaa2-mac.c | 159 ++++- .../net/ethernet/freescale/dpaa2/dpaa2-mac.h | 8 + .../ethernet/freescale/dpaa2/dpaa2-switch.c | 5 +- .../net/ethernet/freescale/dpaa2/dpmac-cmd.h | 12 + drivers/net/ethernet/freescale/dpaa2/dpmac.c | 54 ++ drivers/net/ethernet/freescale/dpaa2/dpmac.h | 5 + drivers/phy/freescale/Kconfig | 10 + drivers/phy/freescale/Makefile | 1 + drivers/phy/freescale/phy-fsl-lynx-28g.c | 624 ++++++++++++++++++ 14 files changed, 919 insertions(+), 21 deletions(-) create mode 100644 Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml create mode 100644 drivers/phy/freescale/phy-fsl-lynx-28g.c -- 2.33.1
