mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
5dc68b07e7
If the serial tx/rx are floating, it can happen that bogus characters are detected on the line at boot time. This leads to U-boot accidentally thinking someone pressed a key to stop autoboot, thus stopping booting process. This can happen if the serial cable is not connected. There are hardware pull-ups on the board connected to serial cable VBUS. To solve this when the cable is not plugged, enable internal pull-ups as well for the tx/rx lines. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
202 lines
4.1 KiB
Text
202 lines
4.1 KiB
Text
// SPDX-License-Identifier: GPL-2.0+ OR MIT
|
|
/*
|
|
* sama7g5ek.dts - Device Tree file for SAMA7G5 EK
|
|
* SAMA7G5 Evaluation Kit
|
|
*
|
|
* Copyright (c) 2020, Microchip Technology Inc.
|
|
* 2020, Eugen Hristev <eugen.hristev@microchip.com>
|
|
* 2020, Claudiu Beznea <claudiu.beznea@microchip.com>
|
|
*/
|
|
/dts-v1/;
|
|
#include "sama7g5.dtsi"
|
|
#include "sama7g5-pinfunc.h"
|
|
|
|
/ {
|
|
model = "Microchip SAMA7G5 Evaluation Kit";
|
|
compatible = "microchip,sama7g5ek", "microchip,sama7g54", "microchip,sama7g5", "microchip,sama7";
|
|
|
|
aliases {
|
|
serial0 = &uart0;
|
|
i2c0 = &i2c1;
|
|
};
|
|
|
|
chosen {
|
|
stdout-path = "serial0:115200n8";
|
|
};
|
|
|
|
clocks {
|
|
slow_xtal: slow_xtal {
|
|
clock-frequency = <32768>;
|
|
};
|
|
|
|
main_xtal: main_xtal {
|
|
clock-frequency = <24000000>;
|
|
};
|
|
};
|
|
|
|
ahb {
|
|
|
|
apb {
|
|
sdmmc0: sdio-host@e1204000 {
|
|
bus-width = <8>;
|
|
non-removable;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_sdmmc0_cmd_data_default
|
|
&pinctrl_sdmmc0_ck_rstn_ds_cd_default>;
|
|
status = "okay";
|
|
};
|
|
|
|
sdmmc1: sdio-host@e1208000 {
|
|
bus-width = <4>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_sdmmc1_cmd_data_default
|
|
&pinctrl_sdmmc1_ck_cd_rstn_vddsel_default>;
|
|
status = "okay";
|
|
};
|
|
|
|
uart0: serial@e1824200 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_flx3_default>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
&flx1 {
|
|
atmel,flexcom-mode = <3>;
|
|
status = "okay";
|
|
};
|
|
|
|
&i2c1 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_flx1_default>;
|
|
status = "okay";
|
|
|
|
eeprom@52 {
|
|
compatible = "microchip,24aa02e48";
|
|
reg = <0x52>;
|
|
pagesize = <16>;
|
|
};
|
|
|
|
eeprom@53 {
|
|
compatible = "microchip,24aa02e48";
|
|
reg = <0x53>;
|
|
pagesize = <16>;
|
|
};
|
|
};
|
|
|
|
&gmac0 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_gmac0_default &pinctrl_gmac0_txc_default>;
|
|
phy-mode = "rgmii-id";
|
|
status = "okay";
|
|
|
|
ethernet-phy@7 {
|
|
reg = <0x7>;
|
|
};
|
|
};
|
|
|
|
&gmac1 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_gmac1_default>;
|
|
phy-mode = "rmii";
|
|
status = "okay";
|
|
|
|
ethernet-phy@0 {
|
|
reg = <0x0>;
|
|
};
|
|
};
|
|
|
|
&pinctrl {
|
|
pinctrl_flx1_default: flx1_default {
|
|
pinmux = <PIN_PC9__FLEXCOM1_IO0>,
|
|
<PIN_PC10__FLEXCOM1_IO1>;
|
|
bias-disable;
|
|
};
|
|
|
|
pinctrl_flx3_default: flx3_default {
|
|
pinmux = <PIN_PD16__FLEXCOM3_IO0>,
|
|
<PIN_PD17__FLEXCOM3_IO1>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_sdmmc0_cmd_data_default: sdmmc0_cmd_data_default {
|
|
pinmux = <PIN_PA1__SDMMC0_CMD>,
|
|
<PIN_PA3__SDMMC0_DAT0>,
|
|
<PIN_PA4__SDMMC0_DAT1>,
|
|
<PIN_PA5__SDMMC0_DAT2>,
|
|
<PIN_PA6__SDMMC0_DAT3>,
|
|
<PIN_PA7__SDMMC0_DAT4>,
|
|
<PIN_PA8__SDMMC0_DAT5>,
|
|
<PIN_PA9__SDMMC0_DAT6>,
|
|
<PIN_PA10__SDMMC0_DAT7>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_sdmmc0_ck_rstn_ds_cd_default: sdmmc0_ck_rstn_ds_cd_default {
|
|
pinmux = <PIN_PA0__SDMMC0_CK>,
|
|
<PIN_PA2__SDMMC0_RSTN>,
|
|
<PIN_PA11__SDMMC0_DS>,
|
|
<PIN_PA14__SDMMC0_CD>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_sdmmc1_cmd_data_default: sdmmc1_cmd_data_default {
|
|
pinmux = <PIN_PB29__SDMMC1_CMD>,
|
|
<PIN_PB31__SDMMC1_DAT0>,
|
|
<PIN_PC0__SDMMC1_DAT1>,
|
|
<PIN_PC1__SDMMC1_DAT2>,
|
|
<PIN_PC2__SDMMC1_DAT3>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_sdmmc1_ck_cd_rstn_vddsel_default: sdmmc1_ck_cd_rstn_vddsel_default {
|
|
pinmux = <PIN_PB30__SDMMC1_CK>,
|
|
<PIN_PB28__SDMMC1_RSTN>,
|
|
<PIN_PC5__SDMMC1_1V8SEL>,
|
|
<PIN_PC4__SDMMC1_CD>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_gmac0_default: gmac0_default {
|
|
pinmux = <PIN_PA16__G0_TX0>,
|
|
<PIN_PA17__G0_TX1>,
|
|
<PIN_PA26__G0_TX2>,
|
|
<PIN_PA27__G0_TX3>,
|
|
<PIN_PA19__G0_RX0>,
|
|
<PIN_PA20__G0_RX1>,
|
|
<PIN_PA28__G0_RX2>,
|
|
<PIN_PA29__G0_RX3>,
|
|
<PIN_PA15__G0_TXEN>,
|
|
<PIN_PA30__G0_RXCK>,
|
|
<PIN_PA18__G0_RXDV>,
|
|
<PIN_PA22__G0_MDC>,
|
|
<PIN_PA23__G0_MDIO>,
|
|
<PIN_PA25__G0_125CK>;
|
|
bias-disable;
|
|
};
|
|
|
|
pinctrl_gmac0_txc_default: gmac0_txc_default {
|
|
pinmux = <PIN_PA24__G0_TXCK>;
|
|
bias-pull-up;
|
|
};
|
|
|
|
pinctrl_gmac1_default: gmac1_default {
|
|
pinmux = <PIN_PD30__G1_TXCK>,
|
|
<PIN_PD22__G1_TX0>,
|
|
<PIN_PD23__G1_TX1>,
|
|
<PIN_PD21__G1_TXEN>,
|
|
<PIN_PD25__G1_RX0>,
|
|
<PIN_PD26__G1_RX1>,
|
|
<PIN_PD27__G1_RXER>,
|
|
<PIN_PD24__G1_RXDV>,
|
|
<PIN_PD28__G1_MDC>,
|
|
<PIN_PD29__G1_MDIO>;
|
|
bias-disable;
|
|
};
|
|
};
|