36ad702253
I've discovered following discrepancy in the bindings/net/ethernet.txt documentation, where it states following: - 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.. which is actually misleading and confusing. There are only two ethernet drivers in the tree, cadence/macb and davinci which supports this properties. This nvmem-cell* properties were introduced in commit9217e566bd("of_net: Implement of_get_nvmem_mac_address helper"), but commitafa64a72b8("of: net: kill of_get_nvmem_mac_address()") forget to properly clean up this parts. So this patch fixes the documentation by moving the nvmem-cell* properties at the appropriate places. While at it, I've removed unused include as well. Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Fixes:afa64a72b8("of: net: kill of_get_nvmem_mac_address()") Signed-off-by: Petr Štetiar <ynezz@true.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
54 lines
2.1 KiB
Plaintext
54 lines
2.1 KiB
Plaintext
* Cadence MACB/GEM Ethernet controller
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Required properties:
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- compatible: Should be "cdns,[<chip>-]{macb|gem}"
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Use "cdns,at91rm9200-emac" Atmel at91rm9200 SoC.
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Use "cdns,at91sam9260-macb" for Atmel at91sam9 SoCs.
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Use "cdns,sam9x60-macb" for Microchip sam9x60 SoC.
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Use "cdns,np4-macb" for NP4 SoC devices.
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Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
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Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
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the Cadence GEM, or the generic form: "cdns,gem".
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Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.
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Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs.
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Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
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Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs.
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Use "cdns,zynq-gem" Xilinx Zynq-7xxx SoC.
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Use "cdns,zynqmp-gem" for Zynq Ultrascale+ MPSoC.
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Or the generic form: "cdns,emac".
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- reg: Address and length of the register set for the device
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- interrupts: Should contain macb interrupt
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- phy-mode: See ethernet.txt file in the same directory.
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- clock-names: Tuple listing input clock names.
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Required elements: 'pclk', 'hclk'
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Optional elements: 'tx_clk'
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Optional elements: 'rx_clk' applies to cdns,zynqmp-gem
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Optional elements: 'tsu_clk'
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- clocks: Phandles to input clocks.
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Optional properties:
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- nvmem-cells: phandle, reference to an nvmem node for the MAC address
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- nvmem-cell-names: string, should be "mac-address" if nvmem is to be used
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Optional properties for PHY child node:
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- reset-gpios : Should specify the gpio for phy reset
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- magic-packet : If present, indicates that the hardware supports waking
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up via magic packet.
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- phy-handle : see ethernet.txt file in the same directory
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Examples:
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macb0: ethernet@fffc4000 {
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compatible = "cdns,at32ap7000-macb";
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reg = <0xfffc4000 0x4000>;
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interrupts = <21>;
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phy-mode = "rmii";
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local-mac-address = [3a 0e 03 04 05 06];
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clock-names = "pclk", "hclk", "tx_clk";
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clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>;
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ethernet-phy@1 {
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reg = <0x1>;
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reset-gpios = <&pioE 6 1>;
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};
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};
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