net: dsa: ocelot: felix: add support for VSC75XX control over SPI

Utilize the Felix and Ocelot drivers to allow control of the VSC7511,
VSC7512, VSC7513 and VAC7514 chips from an external CPU over SPI.

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>

drivers/net/dsa/ocelot/Kconfig

@@ -14,6 +14,18 @@ config NET_DSA_MSCC_FELIX
 	  This driver supports the VSC9959 (Felix) switch, which is embedded as
 	  a PCIe function of the NXP LS1028A ENETC RCiEP.
 
+config NET_DSA_MSCC_OCELOT_SPI
+	tristate "Ocelot Ethernet SPI switch support"
+	depends on NET_DSA && SPI
+	depends on NET_VENDOR_MICROSEMI
+	select MSCC_OCELOT_SWITCH_LIB
+	select NET_DSA_TAG_OCELOT_8021Q
+	select NET_DSA_TAG_OCELOT
+	help
+	  This driver supports the VSC7511, VSC7512, VSC7513 and VSC7514 chips
+	  when controlled through SPI. It can be used with the Microsemi dev
+	  boards and an external CPU or custom hardware.
+
 config NET_DSA_MSCC_SEVILLE
 	tristate "Ocelot / Seville Ethernet switch support"
 	depends on NET_DSA

drivers/net/dsa/ocelot/Makefile

@@ -1,11 +1,17 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_NET_DSA_MSCC_FELIX) += mscc_felix.o
+obj-$(CONFIG_NET_DSA_MSCC_OCELOT_SPI) += mscc_ocelot_spi.o
 obj-$(CONFIG_NET_DSA_MSCC_SEVILLE) += mscc_seville.o
 
 mscc_felix-objs := \
 	felix.o \
 	felix_vsc9959.o
 
+mscc_ocelot_spi-objs := \
+	felix.o \
+	felix_mdio.o \
+	ocelot_vsc7512_spi.o
+
 mscc_seville-objs := \
 	felix.o \
 	felix_mdio.o \