Add support for configuration and control of the VSC7511, VSC7512, VSC7513, and VSC7514 chips over a SPI interface. The intent is to control these chips from an external CPU. The expectation is to have most of the features of the net/ethernet/mscc/ocelot_vsc7514 driver. I have tried to heed all the advice from my first patch RFC. Thanks to everyone for all the feedback. The current status is that there are two functional "bugs" that need investigation: 1. The first probe of the internal MDIO bus fails. I suspect this is related to power supplies / grounding issues that would not appear on standard hardware. 2. Communication to the CPU bus doesn't seem to function properly. I suspect this is due to the fact that ocelot / felix assumes it is using the built-in CPU / NPI port for forwarding, though I am not positive. Nonetheless, these two issues likely won't require a large architecture change, and perhaps those who know much more about the ocelot chips than I could chime in. Colin Foster (8): net: dsa: ocelot: remove unnecessary pci_bar variables net: dsa: ocelot: felix: move MDIO access to a common location net: dsa: ocelot: felix: NULL check on variable net: dsa: ocelot: felix: add interface for custom regmaps net: mscc: ocelot: split register definitions to a separate file net: mscc: ocelot: expose ocelot wm functions net: dsa: ocelot: felix: add support for VSC75XX control over SPI Update documentation for the VSC7512 SPI device .../devicetree/bindings/net/dsa/ocelot.txt | 68 ++ drivers/net/dsa/ocelot/Kconfig | 12 + drivers/net/dsa/ocelot/Makefile | 7 + drivers/net/dsa/ocelot/felix.c | 6 +- drivers/net/dsa/ocelot/felix.h | 4 +- drivers/net/dsa/ocelot/felix_mdio.c | 145 +++ drivers/net/dsa/ocelot/felix_mdio.h | 11 + drivers/net/dsa/ocelot/felix_vsc9959.c | 12 +- drivers/net/dsa/ocelot/ocelot_vsc7512_spi.c | 1068 +++++++++++++++++ drivers/net/dsa/ocelot/seville_vsc9953.c | 109 +- drivers/net/ethernet/mscc/Makefile | 2 + drivers/net/ethernet/mscc/ocelot.c | 8 + drivers/net/ethernet/mscc/ocelot_regs.c | 310 +++++ drivers/net/ethernet/mscc/ocelot_vsc7514.c | 323 +---- drivers/net/ethernet/mscc/ocelot_wm.c | 40 + include/soc/mscc/ocelot.h | 24 + include/soc/mscc/ocelot_regs.h | 21 + 17 files changed, 1737 insertions(+), 433 deletions(-) create mode 100644 drivers/net/dsa/ocelot/felix_mdio.c create mode 100644 drivers/net/dsa/ocelot/felix_mdio.h create mode 100644 drivers/net/dsa/ocelot/ocelot_vsc7512_spi.c create mode 100644 drivers/net/ethernet/mscc/ocelot_regs.c create mode 100644 drivers/net/ethernet/mscc/ocelot_wm.c create mode 100644 include/soc/mscc/ocelot_regs.h -- 2.25.1
