net: dsa: microchip: Add LAN9646 switch support to KSZ DSA driver

LAN9646 switch is a 6-port switch with functions like KSZ9897. It has
4 internal PHYs and 1 SGMII port. The chip id read from hard

net: dsa: microchip: Add LAN9646 switch support to KSZ DSA driver

LAN9646 switch is a 6-port switch with functions like KSZ9897. It has
4 internal PHYs and 1 SGMII port. The chip id read from hardware is
same as KSZ9477, so software driver needs to create a new chip id and
group allowable functions under its chip data structure to
differentiate the product.

Signed-off-by: Tristram Ha <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

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net: dsa: microchip: replace unclear KSZ8830 strings

Replace ksz8830 with ksz88x3 for CHIP_ID definition and other
strings. This due to KSZ8830 not being an actual switch but the Chip
ID shared amon

net: dsa: microchip: replace unclear KSZ8830 strings

Replace ksz8830 with ksz88x3 for CHIP_ID definition and other
strings. This due to KSZ8830 not being an actual switch but the Chip
ID shared among KSZ8863/8873 switches, impossible to differentiate
from their Chip ID or Revision ID registers.

Now all KSZ*_CHIP_ID macros refer to actual, existing switches which
removes confusion.

Signed-off-by: Pieter Van Trappen <[email protected]>
Acked-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: dsa: microchip: Add KSZ8895/KSZ8864 switch support

KSZ8895/KSZ8864 is a switch family between KSZ8863/73 and KSZ8795, so it
shares some registers and functions in those switches already
impleme

net: dsa: microchip: Add KSZ8895/KSZ8864 switch support

KSZ8895/KSZ8864 is a switch family between KSZ8863/73 and KSZ8795, so it
shares some registers and functions in those switches already
implemented in the KSZ DSA driver.

Signed-off-by: Tristram Ha <[email protected]>
Tested-by: Pieter Van Trappen <[email protected]>
Reviewed-by: Oleksij Rempel <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>

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net: dsa: Add KSZ8567 switch support

This commit introduces support for the KSZ8567, a robust 7-port
Ethernet switch. The KSZ8567 features two RGMII/MII/RMII interfaces,
each capable of gigabit spee

net: dsa: Add KSZ8567 switch support

This commit introduces support for the KSZ8567, a robust 7-port
Ethernet switch. The KSZ8567 features two RGMII/MII/RMII interfaces,
each capable of gigabit speeds, complemented by five 10/100 Mbps
MAC/PHYs.

Signed-off-by: Philippe Schenker <[email protected]>
Acked-by: Arun Ramadoss <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>

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net: dsa: microchip: move ksz_chip_id enum to platform include

With the ksz_chip_id enums moved to the platform include file for ksz
switches, platform code that instantiates a device can now use th

net: dsa: microchip: move ksz_chip_id enum to platform include

With the ksz_chip_id enums moved to the platform include file for ksz
switches, platform code that instantiates a device can now use these to
set ksz_platform_data::chip_id.

Signed-off-by: Daniel Danzberger <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: dsa: microchip: properly support platform_data probing

The ksz driver has bits and pieces of platform_data probing support, but
it doesn't work.

The conventional thing to do is to have an enca

net: dsa: microchip: properly support platform_data probing

The ksz driver has bits and pieces of platform_data probing support, but
it doesn't work.

The conventional thing to do is to have an encapsulating structure for
struct dsa_chip_data that gets put into dev->platform_data. This driver
expects a struct ksz_platform_data, but that doesn't contain a struct
dsa_chip_data as first element, which will obviously not work with
dsa_switch_probe() -> dsa_switch_parse().

Pointing dev->platform_data to a struct dsa_chip_data directly is in
principle possible, but that doesn't work either. The driver has
ksz_switch_detect() to read the device ID from hardware, followed by
ksz_check_device_id() to compare it against a predetermined expected
value. This protects against early errors in the SPI/I2C communication.
With platform_data, the mechanism in ksz_check_device_id() doesn't work
and even leads to NULL pointer dereferences, since of_device_get_match_data()
doesn't work in that probe path.

So obviously, the platform_data support is actually missing, and the
existing handling of struct ksz_platform_data is bogus. Complete the
support by adding a struct dsa_chip_data as first element, and fixing up
ksz_check_device_id() to pick up the platform_data instead of the
unavailable of_device_get_match_data().

The early dev->chip_id assignment from ksz_switch_register() is also
bogus, because ksz_switch_detect() sets it to an initial value. So
remove it.

Also, ksz_platform_data :: enabled_ports isn't used anywhere, delete it.

Link: https://lore.kernel.org/netdev/[email protected]/
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: Daniel Danzberger <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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net: dsa: microchip: Platform data shan't include kernel.h

Replace with appropriate types.h.

Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Florian Fainelli <f.fain

net: dsa: microchip: Platform data shan't include kernel.h

Replace with appropriate types.h.

Signed-off-by: Andy Shevchenko <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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dsa: add DSA switch driver for Microchip KSZ9477

The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch
with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs.
T

dsa: add DSA switch driver for Microchip KSZ9477

The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch
with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs.
The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII
or RMII. Either of these may connect directly to a host processor or
to an external PHY. The SGMII port may interface to a fiber optic transceiver.

This driver currently supports vlan, fdb, mdb & mirror dsa switch operations.

Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Woojung Huh <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

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