u-boot/arch/arm/dts/sam9x60ek.dts
Eugen Hristev 89bd68a748 ARM: dts: at91: fix the GPIO polarity for onewire
The GPIO polarity for onewire must be GPIO_ACTIVE_HIGH.
On previous versions this used to work as it looks like the right flag values
are being passed since :
https://lists.denx.de/pipermail/u-boot/2020-April/407195.html

And that series broke the old functionality for onewire nodes.
Some boards had the correct value for the polarity, but it wasn't clear
so I replaced it with the right macro for the flag, instead of an empty value.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2021-07-06 15:17:10 +03:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* sam9x60ek.dts - Device Tree file for SAM9X60 EK board
*
* Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries
*
* Author: Sandeep Sheriker M <Sandeepsheriker.mallikarjun@microchip.com>
*/
/dts-v1/;
#include "sam9x60.dtsi"
/ {
model = "Microchip SAM9X60-Ek";
compatible = "microchip,sam9x60ek", "microchip,sam9x60", "atmel,at91sam9";
chosen {
stdout-path = &dbgu;
i2c0 = &flx0;
};
clocks {
slow_xtal: slow_xtal {
clock-frequency = <32768>;
};
main_xtal: main_xtal {
clock-frequency = <24000000>;
};
};
onewire_tm: onewire {
gpios = <&pioD 14 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_onewire_tm_default>;
status = "okay";
w1_eeprom: w1_eeprom@0 {
compatible = "maxim,ds24b33";
status = "okay";
};
};
ahb {
apb {
qspi: spi@f0014000 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_qspi>;
status = "okay";
nor_flash: sst26vf064@0 {
compatible = "spi-flash";
reg = <0>;
spi-max-frequency = <80000000>;
spi-rx-bus-width = <4>;
spi-tx-bus-width = <4>;
};
};
flx0: flexcom@f801c600 {
atmel,flexcom-mode = <3>;
status = "okay";
i2c@600 {
compatible = "atmel,sama5d2-i2c";
reg = <0x600 0x200>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx0>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 5>;
status = "okay";
eeprom@53 {
compatible = "atmel,24c32";
reg = <0x53>;
pagesize = <16>;
};
};
};
pinctrl {
pinctrl_qspi: qspi {
atmel,pins =
<AT91_PIOB 19 AT91_PERIPH_A AT91_PINCTRL_NONE
AT91_PIOB 20 AT91_PERIPH_A AT91_PINCTRL_NONE
AT91_PIOB 21 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOB 22 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOB 23 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
AT91_PIOB 24 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_flx0: flx0_default {
atmel,pins =
<AT91_PIOA 0 AT91_PERIPH_A AT91_PINCTRL_NONE
AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
pinctrl_onewire_tm_default: onewire_tm_default {
atmel,pins =
<AT91_PIOD 14 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP>;
};
};
};
};
};
&macb0 {
phy-mode = "rmii";
status = "okay";
};