On 5/9/22 06:18, Clément Léger wrote:
The Renesas RZ/N1 SoCs features an ethernet subsystem which contains
(most notably) a switch, two GMACs, and a MII converter [1]. This
series adds support for the switch and the MII converter.
The MII converter present on this SoC has been represented as a PCS
which sit between the MACs and the PHY. This PCS driver is probed from
the device-tree since it requires to be configured. Indeed the MII
converter also contains the registers that are handling the muxing of
ports (Switch, MAC, HSR, RTOS, etc) internally to the SoC.
The switch driver is based on DSA and exposes 4 ports + 1 CPU
management port. It include basic bridging support as well as FDB and
statistics support.
This series needs commits 14f11da778ff6421 ("soc: renesas: rzn1: Select
PM and PM_GENERIC_DOMAINS configs") and ed66b37f916ee23b ("ARM: dts:
r9a06g032: Add missing '#power-domain-cells'") which are available on
the renesas-devel tree in order to enable generic power domain on
RZ/N1.
Link: [1] https://www.renesas.com/us/en/document/mah/rzn1d-group-rzn1s-group-rzn1l-group-users-manual-r-engine-and-ethernet-peripherals
Build testing this patch set gave me the following Kconfig warnings:
WARNING: unmet direct dependencies detected for PCS_RZN1_MIIC
Depends on [n]: NETDEVICES [=y] && (ARCH_RZN1 [=n] || COMPILE_TEST [=n])
Selected by [m]:
- NET_DSA_RZN1_A5PSW [=m] && NETDEVICES [=y] && NET_DSA [=m]
WARNING: unmet direct dependencies detected for PCS_RZN1_MIIC
Depends on [n]: NETDEVICES [=y] && (ARCH_RZN1 [=n] || COMPILE_TEST [=n])
Selected by [m]:
- NET_DSA_RZN1_A5PSW [=m] && NETDEVICES [=y] && NET_DSA [=m]
WARNING: unmet direct dependencies detected for PCS_RZN1_MIIC
Depends on [n]: NETDEVICES [=y] && (ARCH_RZN1 [=n] || COMPILE_TEST [=n])
Selected by [m]:
- NET_DSA_RZN1_A5PSW [=m] && NETDEVICES [=y] && NET_DSA [=m]
I started off with arm64's defconfig and then enabled all of the DSA
drivers.
--
Florian
