46b7f22498
[ Upstream commit c183c406c4321002fe85b345b51bc1a3a04b6d33 ]
According to the datasheet (Rev. 1.9) the RTL8211F requires at least
72ms "for internal circuits settling time" before accessing the PHY
registers. This fixes an issue seen on ODROID-C2 where the Ethernet
link doesn't come up when using ip link set down/up:
[ 6630.714855] meson8b-dwmac c9410000.ethernet eth0: Link is Down
[ 6630.785775] meson8b-dwmac c9410000.ethernet eth0: PHY [stmmac-0:00] driver [RTL8211F Gigabit Ethernet] (irq=36)
[ 6630.893071] meson8b-dwmac c9410000.ethernet: Failed to reset the dma
[ 6630.893800] meson8b-dwmac c9410000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed
[ 6630.902835] meson8b-dwmac c9410000.ethernet eth0: stmmac_open: Hw setup failed
Fixes: f29cabf240 ("arm64: dts: meson: use the generic Ethernet PHY reset GPIO bindings")
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/4a322c198b86e4c8b3dda015560a683babea4d63.1607363522.git.stefan@agner.ch
Signed-off-by: Sasha Levin <sashal@kernel.org>
82 lines
1.6 KiB
Plaintext
82 lines
1.6 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2016 Endless Computers, Inc.
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* Author: Carlo Caione <carlo@endlessm.com>
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*/
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/dts-v1/;
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#include <dt-bindings/input/input.h>
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#include "meson-gxm.dtsi"
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#include "meson-gx-p23x-q20x.dtsi"
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/ {
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compatible = "amlogic,q200", "amlogic,s912", "amlogic,meson-gxm";
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model = "Amlogic Meson GXM (S912) Q200 Development Board";
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adc-keys {
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compatible = "adc-keys";
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io-channels = <&saradc 0>;
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io-channel-names = "buttons";
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keyup-threshold-microvolt = <1710000>;
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button-function {
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label = "Update";
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linux,code = <KEY_VENDOR>;
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press-threshold-microvolt = <10000>;
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};
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};
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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#address-cells = <1>;
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#size-cells = <0>;
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poll-interval = <100>;
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button@0 {
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label = "power";
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linux,code = <KEY_POWER>;
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gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>;
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};
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};
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};
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/* Q200 has exclusive choice between internal or external PHY */
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ðmac {
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pinctrl-0 = <ð_pins>;
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pinctrl-names = "default";
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/* Select external PHY by default */
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phy-handle = <&external_phy>;
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amlogic,tx-delay-ns = <2>;
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/* External PHY is in RGMII */
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phy-mode = "rgmii";
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};
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&external_mdio {
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external_phy: ethernet-phy@0 {
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/* Realtek RTL8211F (0x001cc916) */
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reg = <0>;
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max-speed = <1000>;
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/* External PHY reset is shared with internal PHY Led signal */
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reset-assert-us = <10000>;
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reset-deassert-us = <80000>;
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reset-gpios = <&gpio GPIOZ_14 GPIO_ACTIVE_LOW>;
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interrupt-parent = <&gpio_intc>;
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/* MAC_INTR on GPIOZ_15 */
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interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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&sd_emmc_a {
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brcmf: wifi@1 {
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reg = <1>;
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compatible = "brcm,bcm4329-fmac";
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};
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};
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