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9ce42e46b1
On the LeMaker Banana Pi, probing the external ethernet PHY connected to the SoC's internal GMAC module sometimes fails. The PHY power supply is handled via a GPIO-controlled regulator, and the existing regulator startup-delay of 50000us is too short to make sure that the PHY is always fully powered up when it is queried by phylib. Tests have shown that to provide a reliable PHY detection, the startup-delay has to be increased to at least 60000us. To have a certain safety margin and to cater for manufacturing variations between different boards, the delay gets set to 100000us as discussed on the linux-arm-kernel mailinglist. Signed-off-by: Karsten Merker <merker@debian.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
215 lines
5.3 KiB
Plaintext
215 lines
5.3 KiB
Plaintext
/*
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* Copyright 2014 Hans de Goede <hdegoede@redhat.com>
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*
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* Hans de Goede <hdegoede@redhat.com>
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this file; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*
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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/dts-v1/;
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/include/ "sun7i-a20.dtsi"
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/include/ "sunxi-common-regulators.dtsi"
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/ {
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model = "LeMaker Banana Pi";
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compatible = "lemaker,bananapi", "allwinner,sun7i-a20";
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soc@01c00000 {
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spi0: spi@01c05000 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi0_pins_a>;
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status = "okay";
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};
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mmc0: mmc@01c0f000 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_bananapi>;
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vmmc-supply = <®_vcc3v3>;
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bus-width = <4>;
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cd-gpios = <&pio 7 10 0>; /* PH10 */
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cd-inverted;
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status = "okay";
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};
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usbphy: phy@01c13400 {
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usb1_vbus-supply = <®_usb1_vbus>;
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usb2_vbus-supply = <®_usb2_vbus>;
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status = "okay";
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};
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ehci0: usb@01c14000 {
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status = "okay";
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};
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ohci0: usb@01c14400 {
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status = "okay";
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};
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ahci: sata@01c18000 {
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status = "okay";
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};
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ehci1: usb@01c1c000 {
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status = "okay";
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};
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ohci1: usb@01c1c400 {
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status = "okay";
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};
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pinctrl@01c20800 {
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mmc0_cd_pin_bananapi: mmc0_cd_pin@0 {
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allwinner,pins = "PH10";
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allwinner,function = "gpio_in";
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allwinner,drive = <0>;
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allwinner,pull = <1>;
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};
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gmac_power_pin_bananapi: gmac_power_pin@0 {
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allwinner,pins = "PH23";
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allwinner,function = "gpio_out";
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allwinner,drive = <0>;
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allwinner,pull = <0>;
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};
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led_pins_bananapi: led_pins@0 {
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allwinner,pins = "PH24";
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allwinner,function = "gpio_out";
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allwinner,drive = <0>;
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allwinner,pull = <0>;
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};
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};
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ir0: ir@01c21800 {
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pinctrl-names = "default";
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pinctrl-0 = <&ir0_pins_a>;
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status = "okay";
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};
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uart0: serial@01c28000 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_pins_a>;
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status = "okay";
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};
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uart3: serial@01c28c00 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart3_pins_b>;
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status = "okay";
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};
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uart7: serial@01c29c00 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart7_pins_a>;
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status = "okay";
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};
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i2c0: i2c@01c2ac00 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c0_pins_a>;
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status = "okay";
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axp209: pmic@34 {
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compatible = "x-powers,axp209";
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reg = <0x34>;
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interrupt-parent = <&nmi_intc>;
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interrupts = <0 8>;
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interrupt-controller;
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#interrupt-cells = <1>;
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};
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};
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i2c2: i2c@01c2b400 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c2_pins_a>;
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status = "okay";
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};
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gmac: ethernet@01c50000 {
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pinctrl-names = "default";
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pinctrl-0 = <&gmac_pins_rgmii_a>;
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phy = <&phy1>;
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phy-mode = "rgmii";
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phy-supply = <®_gmac_3v3>;
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status = "okay";
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phy1: ethernet-phy@1 {
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reg = <1>;
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};
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};
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&led_pins_bananapi>;
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green {
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label = "bananapi:green:usr";
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gpios = <&pio 7 24 0>;
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};
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};
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reg_usb1_vbus: usb1-vbus {
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status = "okay";
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};
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reg_usb2_vbus: usb2-vbus {
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status = "okay";
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};
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reg_gmac_3v3: gmac-3v3 {
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compatible = "regulator-fixed";
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pinctrl-names = "default";
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pinctrl-0 = <&gmac_power_pin_bananapi>;
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regulator-name = "gmac-3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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startup-delay-us = <100000>;
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enable-active-high;
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gpio = <&pio 7 23 0>;
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};
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};
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