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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8826532c76
mmc2 has a special pin for eMMC hardware reset, which is controllable from the controller. Add the "mmc-cap-hw-reset" property to denote that this controller supports this function, and the pins are actually used. Also increase the signal drive strength for mmc2 pins, for HS-DDR mode support. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
136 lines
3.7 KiB
Plaintext
136 lines
3.7 KiB
Plaintext
/*
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* Copyright 2015 Tyler Baker
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*
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* Tyler Baker <tyler.baker@linaro.org>
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* 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 "sun9i-a80.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 = "Cubietech Cubieboard4";
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compatible = "cubietech,a80-cubieboard4", "allwinner,sun9i-a80";
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aliases {
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serial0 = &uart0;
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};
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chosen {
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stdout-path = "serial0:115200n8";
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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_cubieboard4>;
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green {
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label = "cubieboard4:green:usr";
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gpios = <&pio 7 17 GPIO_ACTIVE_HIGH>; /* PH17 */
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};
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red {
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label = "cubieboard4:red:usr";
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gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
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};
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};
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};
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&pio {
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led_pins_cubieboard4: led-pins@0 {
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allwinner,pins = "PH6", "PH17";
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allwinner,function = "gpio_out";
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allwinner,drive = <SUN4I_PINCTRL_10_MA>;
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allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
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};
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mmc0_cd_pin_cubieboard4: mmc0_cd_pin@0 {
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allwinner,pins = "PH18";
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allwinner,function = "gpio_in";
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allwinner,drive = <SUN4I_PINCTRL_10_MA>;
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allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
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};
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};
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&mmc0 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc0_pins>, <&mmc0_cd_pin_cubieboard4>;
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vmmc-supply = <®_vcc3v0>;
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bus-width = <4>;
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cd-gpios = <&pio 7 18 GPIO_ACTIVE_HIGH>; /* PH18 */
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cd-inverted;
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status = "okay";
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};
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&mmc2 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc2_8bit_pins>;
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vmmc-supply = <®_vcc3v0>;
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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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&mmc2_8bit_pins {
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/* Increase drive strength for DDR modes */
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allwinner,drive = <SUN4I_PINCTRL_40_MA>;
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};
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&r_ir {
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status = "okay";
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};
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&r_rsb {
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status = "okay";
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};
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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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