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>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 88ff025..dcf6b4c 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -1019,6 +1019,20 @@
This driver supports the NXP ENETC Ethernet controller found on some
of the NXP SoCs.
+config FSL_ENETC_NETC_BLK_CTRL
+ bool "NXP ENETC NETC blocks control driver"
+ depends on FSL_ENETC && IMX95
+ default y if IMX95
+ help
+ This driver configures Integrated Endpoint Register Block (IERB) and
+ Privileged Register Block (PRB) of NETC. For i.MX platforms, it also
+ includes the configuration of 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.
+
config MDIO_GPIO_BITBANG
bool "GPIO bitbanging MDIO driver"
depends on DM_MDIO && DM_GPIO