// SPDX-License-Identifier: GPL-2.0 OR MIT /* * Copyright (C) 2021 StarFive Technology Co., Ltd. * Copyright (C) 2021 Emil Renner Berthing */ /dts-v1/; #include "jh7100-common.dtsi" / { model = "StarFive VisionFive V1"; compatible = "starfive,visionfive-v1", "starfive,jh7100"; gpio-restart { compatible = "gpio-restart"; gpios = <&gpio 63 GPIO_ACTIVE_HIGH>; priority = <224>; }; }; &gmac { phy-handle = <&phy>; }; &gpio { /* don't reset gpio mux for serial console and reset gpio */ starfive,keep-gpiomux = <13 14 63>; }; &i2c0 { eeprom@50 { compatible = "atmel,24c04"; reg = <0x50>; pagesize = <16>; }; }; /* * The board uses a Motorcomm YT8521 PHY supporting RGMII-ID, but requires * manual adjustment of the RX internal delay to work properly. The default * RX delay provided by the driver (1.95ns) is too high, but applying a 50% * reduction seems to mitigate the issue. * * It is worth noting the adjustment is not necessary on BeagleV Starlight SBC, * which uses a Microchip PHY. Hence, most likely the Motorcomm PHY is the one * responsible for the misbehaviour, not the GMAC. */ &mdio { phy: ethernet-phy@0 { reg = <0>; rx-internal-delay-ps = <900>; }; };