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net: smc91x: Fix device tree based configuration so it's usable

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Commit 89ce376c6b (drivers/net: Use of_match_ptr() macro in smc91x.c)
added minimal device tree support to smc91x, but it's not working on
many platforms because of the lack of some key configuration bits.

Fix the issue by parsing the necessary configuration like the
smc911x driver is doing. As most smc91x users seem to use 16-bit
access, let's default to that if no reg-io-width is specified.

Cc: Nicolas Pitre <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: [email protected]
Cc: [email protected]
Acked-by: Nishanth Menon <[email protected]>
Signed-off-by: Tony Lindgren <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Tony Lindgren 2013-12-11 13:04:27 -08:00 • committed by David S. Miller
commit 3f823c15d5
2 changed files with 39 additions and 10 deletions
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4
Documentation/devicetree/bindings/net/smsc-lan91c111.txt
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@ -8,3 +8,7 @@ Required properties:
Optional properties:
- phy-device : phandle to Ethernet phy
- local-mac-address : Ethernet mac address to use
- reg-io-width : Mask of sizes (in bytes) of the IO accesses that
are supported on the device. Valid value for SMSC LAN91c111 are
1, 2 or 4. If it's omitted or invalid, the size would be 2 meaning
16-bit access only.