net: dsa: mv88e6xxx: add Amethyst specific SMI GPIO function

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The existing mv88e6390_g2_scratch_gpio_set_smi() cannot be used on the
88E6393X as it requires certain P0_MODE, it also checks the CPU mode
as it impacts the bit setting value.

This is all irrelevant for Amethyst (MV88E6191X/6193X/6393X) as only
the default value of the SMI_PHY Config bit is set to CPU_MGD bootstrap
pin value but it can be changed without restrictions so that GPIO pins
9 and 10 are used as SMI pins.

So, introduce Amethyst specific function and call that if the Amethyst
family wants to setup the external PHY.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Robert Marko 2024-02-27 18:54:22 +01:00 • committed by Paolo Abeni

parent 5c5b0c444b

commit e3ab3267a0

3 changed files with 37 additions and 1 deletions

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5

drivers/net/dsa/mv88e6xxx/chip.c

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2

drivers/net/dsa/mv88e6xxx/global2.h

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31

drivers/net/dsa/mv88e6xxx/global2_scratch.c

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