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board: disco_l475_iot1: add Arduino header definition to DTS

Let's expose the Arduino R3-compatible pin definition as DTS
for the disco_l475_iot1 board.

Signed-off-by: Michael Scott <mike@foundries.io>
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mike-scott authored and nashif committed May 17, 2019
1 parent 8548517 commit 9ab20bfd857892308efa92440ed71a7dc633125b
Showing with 27 additions and 0 deletions.
  1. +27 −0 boards/arm/disco_l475_iot1/disco_l475_iot1.dts
@@ -45,6 +45,33 @@
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 {};

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