net: stmmac: dwmac-sun8i: Handle integrated/external MDIOs

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The Allwinner H3 SoC have two distinct MDIO bus, only one could be
active at the same time.
The selection of the active MDIO bus are done via some bits in the EMAC
register of the system controller.

This patch implement this MDIO switch via a custom MDIO-mux.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Corentin Labbe 2017-10-24 19:57:13 +02:00 • committed by David S. Miller

parent b5beecb580

commit 634db83b82

2 changed files with 224 additions and 130 deletions

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1

drivers/net/ethernet/stmicro/stmmac/Kconfig

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353

drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c

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