This change adds bindings for the Analog Devices ADIN PHY driver, detailing all the properties implemented by the driver. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> --- .../devicetree/bindings/net/adi,adin.yaml | 93 +++++++++++++++++++ MAINTAINERS | 2 + include/dt-bindings/net/adin.h | 26 ++++++ 3 files changed, 121 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/adi,adin.yaml create mode 100644 include/dt-bindings/net/adin.h diff --git a/Documentation/devicetree/bindings/net/adi,adin.yaml b/Documentation/devicetree/bindings/net/adi,adin.yaml new file mode 100644 index 000000000000..fcf884bb86f7 --- /dev/null +++ b/Documentation/devicetree/bindings/net/adi,adin.yaml @@ -0,0 +1,93 @@ +# SPDX-License-Identifier: GPL-2.0+ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/adi,adin.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices ADIN1200/ADIN1300 PHY + +maintainers: + - Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> + +description: | + Bindings for Analog Devices Industrial Ethernet PHYs + +properties: + compatible: + description: | + Compatible list, may contain "ethernet-phy-ieee802.3-c45" in which case + Clause 45 will be used to access device management registers. If + unspecified, Clause 22 will be used. Use this only when MDIO supports + Clause 45 access, but there is no other way to determine this. + enum: + - ethernet-phy-ieee802.3-c45 + + adi,phy-mode-internal: + $ref: /schemas/types.yaml#/definitions/string + description: | + The internal mode of the PHY. This assumes that there is a PHY converter + in-between the MAC & PHY. + enum: [ "rgmii", "rgmii-id", "rgmii-txid", "rgmii-rxid", "rmii", "mii" ] + + adi,rx-internal-delay: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + RGMII RX Clock Delay used only when PHY operates in RGMII mode (phy-mode + is "rgmii-id", "rgmii-rxid", "rgmii-txid") see `dt-bindings/net/adin.h` + default value is 0 (which represents 2 ns) + enum: [ 0, 1, 2, 6, 7 ] + + adi,tx-internal-delay: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + RGMII TX Clock Delay used only when PHY operates in RGMII mode (phy-mode + is "rgmii-id", "rgmii-rxid", "rgmii-txid") see `dt-bindings/net/adin.h` + default value is 0 (which represents 2 ns) + enum: [ 0, 1, 2, 6, 7 ] + + adi,fifo-depth: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + When operating in RMII mode, this option configures the FIFO depth. + See `dt-bindings/net/adin.h`. + enum: [ 0, 1, 2, 3, 4, 5 ] + + adi,eee-enabled: + description: | + Advertise EEE capabilities on power-up/init (default disabled) + type: boolean + + adi,disable-energy-detect: + description: | + Disables Energy Detect Powerdown Mode (default disabled, i.e energy detect + is enabled if this property is unspecified) + type: boolean + + reset-gpios: + description: | + GPIO to reset the PHY + see Documentation/devicetree/bindings/gpio/gpio.txt. + +examples: + - | + ethernet-phy@0 { + compatible = "ethernet-phy-ieee802.3-c45"; + reg = <0>; + }; + - | + #include <dt-bindings/net/adin.h> + ethernet-phy@1 { + reg = <1>; + adi,phy-mode-internal = "rgmii-id"; + + adi,rx-internal-delay = <ADIN1300_RGMII_1_80_NS>; + adi,tx-internal-delay = <ADIN1300_RGMII_2_20_NS>; + }; + - | + #include <dt-bindings/net/adin.h> + ethernet-phy@2 { + reg = <2>; + phy-mode = "rmii"; + + adi,fifo-depth = <ADIN1300_RMII_16_BITS>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index faf5723610c8..6ffbb266dee4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -944,6 +944,8 @@ L: netdev@xxxxxxxxxxxxxxx W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/net/phy/adin.c +F: include/dt-bindings/net/adin.h +F: Documentation/devicetree/bindings/net/adi,adin.yaml ANALOG DEVICES INC ADIS DRIVER LIBRARY M: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> diff --git a/include/dt-bindings/net/adin.h b/include/dt-bindings/net/adin.h new file mode 100644 index 000000000000..4c3afa550c59 --- /dev/null +++ b/include/dt-bindings/net/adin.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/** + * Device Tree constants for Analog Devices Industrial Ethernet PHYs + * + * Copyright 2019 Analog Devices Inc. + */ + +#ifndef _DT_BINDINGS_ADIN_H +#define _DT_BINDINGS_ADIN_H + +/* RGMII internal delay settings for rx and tx for ADIN1300 */ +#define ADIN1300_RGMII_1_60_NS 0x1 +#define ADIN1300_RGMII_1_80_NS 0x2 +#define ADIN1300_RGMII_2_00_NS 0x0 +#define ADIN1300_RGMII_2_20_NS 0x6 +#define ADIN1300_RGMII_2_40_NS 0x7 + +/* RMII fifo depth values */ +#define ADIN1300_RMII_4_BITS 0x0 +#define ADIN1300_RMII_8_BITS 0x1 +#define ADIN1300_RMII_12_BITS 0x2 +#define ADIN1300_RMII_16_BITS 0x3 +#define ADIN1300_RMII_20_BITS 0x4 +#define ADIN1300_RMII_24_BITS 0x5 + +#endif -- 2.20.1
