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1ef75c67f1
The AT91SAM9G25-based GARDENA smart Gateway uses USART3 (ttyS1) to communicate (over PPP, at 115200 baud) with the radio module. We have been experiencing packet loss and seeing errors on the ppp0 interface. Enabling DMA for the serial interface resolves the issues. Co-developed-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net> Signed-off-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net> Signed-off-by: Ezra Buehler <ezra.buehler@husqvarnagroup.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20240102161839.702625-3-ezra.buehler@husqvarna.com [claudiu.beznea: s/Co-Developed-by/Co-developed-by to make checkpatch.pl happy, s/at91/microchip in commit title] Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
160 lines
2.5 KiB
Text
160 lines
2.5 KiB
Text
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Device Tree file for the GARDENA smart Gateway (Article No. 19000)
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*
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* Copyright (C) 2020 GARDENA GmbH
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*/
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/dts-v1/;
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#include "at91sam9g25.dtsi"
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#include "at91sam9x5ek.dtsi"
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#include <dt-bindings/input/input.h>
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/ {
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model = "GARDENA smart Gateway (Article No. 19000)";
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compatible = "gardena,smart-gateway-at91sam", "atmel,at91sam9g25", "atmel,at91sam9x5",
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"atmel,at91sam9";
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aliases {
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serial1 = &usart3;
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};
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gpio-keys {
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compatible = "gpio-keys";
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button {
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label = "USER_BTN1";
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gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_PROG1>;
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};
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};
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1wire_cm {
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status = "disabled";
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};
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leds {
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compatible = "gpio-leds";
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power_blue {
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label = "smartgw:power:blue";
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gpios = <&pioC 21 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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power_green {
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label = "smartgw:power:green";
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gpios = <&pioC 20 GPIO_ACTIVE_HIGH>;
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default-state = "on";
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};
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power_red {
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label = "smartgw:power:red";
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gpios = <&pioC 19 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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radio_blue {
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label = "smartgw:radio:blue";
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gpios = <&pioC 18 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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radio_green {
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label = "smartgw:radio:green";
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gpios = <&pioC 17 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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radio_red {
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label = "smartgw:radio:red";
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gpios = <&pioC 16 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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internet_blue {
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label = "smartgw:internet:blue";
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gpios = <&pioC 15 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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internet_green {
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label = "smartgw:internet:green";
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gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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internet_red {
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label = "smartgw:internet:red";
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gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
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default-state = "off";
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};
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heartbeat {
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label = "smartgw:heartbeat";
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gpios = <&pioB 8 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "heartbeat";
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};
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pb18 {
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status = "disabled";
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};
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pd21 {
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status = "disabled";
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};
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};
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};
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&macb0 {
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phy-mode = "rmii";
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status = "okay";
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};
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&usart0 {
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status = "disabled";
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};
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&usart2 {
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status = "disabled";
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};
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&usart3 {
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atmel,use-dma-rx;
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atmel,use-dma-tx;
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status = "okay";
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pinctrl-0 = <&pinctrl_usart3
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&pinctrl_usart3_rts
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&pinctrl_usart3_cts
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>;
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};
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&watchdog {
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status = "okay";
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};
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&mmc0 {
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status = "disabled";
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};
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&mmc1 {
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status = "disabled";
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};
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&spi0 {
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status = "disabled";
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};
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&i2c0 {
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status = "disabled";
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};
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&adc0 {
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status = "disabled";
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};
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&ssc0 {
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status = "disabled";
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};
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