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According to Allwinner, only mmc3 supports 8 bit DDR transfers for eMMC. Switch to mmc3 for the onboard eMMC, and also assign vqmmc for signal voltage sensing, and "cap-mmc-hw-reset" to denote this instance can use eMMC hardware reset. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
143 lines
3.8 KiB
Plaintext
143 lines
3.8 KiB
Plaintext
/*
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* Copyright 2015 Chen-Yu Tsai <wens@csie.org>
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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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* 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 "sun6i-a31s.dtsi"
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#include "sunxi-common-regulators.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/pinctrl/sun4i-a10.h>
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/ {
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model = "Sinlinx SinA31s Core Board";
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compatible = "sinlinx,sina31s", "allwinner,sun6i-a31s";
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aliases {
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serial0 = &uart0;
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};
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};
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&cpu0 {
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cpu-supply = <®_dcdc3>;
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};
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/* eMMC on core board */
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&mmc3 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc3_8bit_emmc_pins>;
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vmmc-supply = <®_dcdc1>;
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vqmmc-supply = <®_dcdc1>;
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bus-width = <8>;
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non-removable;
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cap-mmc-hw-reset;
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status = "okay";
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};
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/* AXP221s PMIC on core board */
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&p2wi {
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status = "okay";
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axp22x: pmic@68 {
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compatible = "x-powers,axp221";
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reg = <0x68>;
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interrupt-parent = <&nmi_intc>;
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interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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#include "axp22x.dtsi"
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®_aldo3 {
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regulator-always-on;
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regulator-min-microvolt = <2700000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "avcc";
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};
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®_dc5ldo {
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1320000>;
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regulator-name = "vdd-cpus";
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};
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®_dcdc1 {
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regulator-always-on;
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regulator-min-microvolt = <3000000>;
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regulator-max-microvolt = <3000000>;
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regulator-name = "vcc-3v0";
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};
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®_dcdc2 {
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1320000>;
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regulator-name = "vdd-gpu";
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};
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®_dcdc3 {
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regulator-always-on;
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1320000>;
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regulator-name = "vdd-cpu";
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};
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®_dcdc4 {
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regulator-always-on;
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1320000>;
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regulator-name = "vdd-sys-dll";
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};
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®_dcdc5 {
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regulator-always-on;
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <1500000>;
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regulator-name = "vcc-dram";
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};
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/* UART0 pads available on core board */
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&uart0 {
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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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