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| author | Mike Looijmans <mike.looijmans@topic.nl> | 2018-03-29 08:29:48 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-30 17:40:18 +0300 |
| commit | 9217e566bdee4583d0a9ea4879c8f5e004886eac (patch) | |
| tree | 7bb19099d401d2e50b46112173f35435268eb6e9 /Documentation/devicetree | |
| parent | 64e828dfc4853a396d2c0b25c22a4c5066aab76a (diff) | |
| download | linux-9217e566bdee4583d0a9ea4879c8f5e004886eac.tar.xz | |
of_net: Implement of_get_nvmem_mac_address helper
It's common practice to store MAC addresses for network interfaces into
nvmem devices. However the code to actually do this in the kernel lacks,
so this patch adds of_get_nvmem_mac_address() for drivers to obtain the
address from an nvmem cell provider.
This is particulary useful on devices where the ethernet interface cannot
be configured by the bootloader, for example because it's in an FPGA.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/ethernet.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/ethernet.txt b/Documentation/devicetree/bindings/net/ethernet.txt index 2974e63ba311..cfc376bc977a 100644 --- a/Documentation/devicetree/bindings/net/ethernet.txt +++ b/Documentation/devicetree/bindings/net/ethernet.txt @@ -10,6 +10,8 @@ Documentation/devicetree/bindings/phy/phy-bindings.txt. the boot program; should be used in cases where the MAC address assigned to the device by the boot program is different from the "local-mac-address" property; +- nvmem-cells: phandle, reference to an nvmem node for the MAC address; +- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used; - max-speed: number, specifies maximum speed in Mbit/s supported by the device; - max-frame-size: number, maximum transfer unit (IEEE defined MTU), rather than the maximum frame size (there's contradiction in the Devicetree |