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boards: disco_l475_iot1: create .dtsi connector file

Create a dedicated connector file to hold arduino connector
information for disco_l475_iot board.
This should enhance board dts file readability.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
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erwango authored and nashif committed May 24, 2019
1 parent 7f26009 commit 8feaa27ce9f126191ffa5d81ddc02b7c353e6f43
@@ -0,0 +1,38 @@
/*
* Copyright (c) 2019 Linaro Limited
*
* SPDX-License-Identifier: Apache-2.0
*/

/ {
arduino_header: connector {
compatible = "arduino-header-r3";
#gpio-cells = <2>;
gpio-map = <0 0 &gpioc 5 0>, /* A0 */
<1 0 &gpioc 4 0>, /* A1 */
<2 0 &gpioc 3 0>, /* A2 */
<3 0 &gpioc 2 0>, /* A3 */
<4 0 &gpioc 1 0>, /* A4 */
<5 0 &gpioc 0 0>, /* A5 */
<6 0 &gpioa 1 0>, /* D0 */
<7 0 &gpioa 0 0>, /* D1 */
<8 0 &gpiod 14 0>, /* D2 */
<9 0 &gpiob 0 0>, /* D3 */
<10 0 &gpioa 3 0>, /* D4 */
<11 0 &gpiob 4 0>, /* D5 */
<12 0 &gpiob 1 0>, /* D6 */
<13 0 &gpioa 4 0>, /* D7 */
<14 0 &gpiob 2 0>, /* D8 */
<15 0 &gpioa 15 0>, /* D9 */
<16 0 &gpioa 2 0>, /* D10 */
<17 0 &gpioa 7 0>, /* D11 */
<18 0 &gpioa 6 0>, /* D12 */
<19 0 &gpioa 5 0>, /* D13 */
<20 0 &gpiob 9 0>, /* D14 */
<21 0 &gpiob 8 0>; /* D15 */
};
};

arduino_i2c: &i2c1 {};
arduino_spi: &spi1 {};
arduino_serial: &uart4 {};
@@ -6,6 +6,8 @@

/dts-v1/;
#include <st/l4/stm32l475Xg.dtsi>
#include "arduino_r3_connector.dtsi"


/ {
model = "STMicroelectronics B-L475E-IOT01Ax board";
@@ -45,39 +47,8 @@
sw0 = &user_button;
eswifi0 = &wifi0;
};

arduino_header: connector {
compatible = "arduino-header-r3";
#gpio-cells = <2>;
gpio-map = <0 0 &gpioc 5 0>, /* A0 */
<1 0 &gpioc 4 0>, /* A1 */
<2 0 &gpioc 3 0>, /* A2 */
<3 0 &gpioc 2 0>, /* A3 */
<4 0 &gpioc 1 0>, /* A4 */
<5 0 &gpioc 0 0>, /* A5 */
<6 0 &gpioa 1 0>, /* D0 */
<7 0 &gpioa 0 0>, /* D1 */
<8 0 &gpiod 14 0>, /* D2 */
<9 0 &gpiob 0 0>, /* D3 */
<10 0 &gpioa 3 0>, /* D4 */
<11 0 &gpiob 4 0>, /* D5 */
<12 0 &gpiob 1 0>, /* D6 */
<13 0 &gpioa 4 0>, /* D7 */
<14 0 &gpiob 2 0>, /* D8 */
<15 0 &gpioa 15 0>, /* D9 */
<16 0 &gpioa 2 0>, /* D10 */
<17 0 &gpioa 7 0>, /* D11 */
<18 0 &gpioa 6 0>, /* D12 */
<19 0 &gpioa 5 0>, /* D13 */
<20 0 &gpiob 9 0>, /* D14 */
<21 0 &gpiob 8 0>; /* D15 */
};
};

arduino_i2c: &i2c1 {};
arduino_spi: &spi1 {};
arduino_serial: &uart4 {};

&usart1 {
current-speed = <115200>;
pinctrl-0 = <&usart1_pins_a>;

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