tree a37655ddf7ca004a0c199a55255c138db9685c25
parent 278c8446186409c9614eb5c5ad1b2752cd8f0b92
author Marek Vasut <marex@denx.de> 1737000208 +0100
committer Fabio Estevam <festevam@gmail.com> 1737373239 -0300

net: fsl_enetc: Add initial netc-blk-ctrl driver support

The netc-blk-ctrl driver is used to configure Integrated Endpoint
Register Block (IERB) and Privileged Register Block (PRB) of NETC.
For i.MX platforms, it is also used to configure the NETCMIX block.

The IERB contains registers that are used for pre-boot initialization,
debug, and non-customer configuration. The PRB controls global reset
and global error handling for NETC. The NETCMIX block is mainly used
to set MII protocol and PCS protocol of the links, it also contains
settings for some other functions.

Note the IERB configuration registers can only be written after being
unlocked by PRB, otherwise, all write operations are inhibited. A warm
reset is performed when the IERB is unlocked, and it results in an FLR
to all NETC devices. Therefore, all NETC device drivers must be probed
or initialized after the warm reset is finished.

Ported from Linux 6.13-rc as of commit
fe5ba6bf91b3 ("net: enetc: add initial netc-blk-ctrl driver support")

Signed-off-by: Marek Vasut <marex@denx.de>