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boards: arm: 96b_wistrio: Add 3.3v Low speed connector support

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Add support for 3.3v Low speed connector available on the Wistrio
board inorder to access peripherals in a board independent way.

Following peripherals are supported:

1. 7-GPIOs
2. I2C0
3. UART0

Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
This commit is contained in:
Manivannan Sadhasivam 2019-10-10 18:18:18 +05:30 • committed by Kumar Gala
commit 8f1d8522c0
3 changed files with 30 additions and 1 deletions
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25
boards/arm/96b_wistrio/96b_lscon.dtsi Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2019 Linaro Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
/ {
lscon_96b: connector {
compatible = "96b-lscon-3v3";
#gpio-cells = <2>;
gpio-map-mask = <0xffffffff 0xffffffc0>;
gpio-map-pass-thru = <0 0x3f>;
gpio-map = <13 0 &gpioa 8 0>, /* GPIO-A */
<14 0 &gpiob 3 0>, /* GPIO-B */
/* GPIO-C not connected */
<16 0 &gpiob 5 0>, /* GPIO-D */
<17 0 &gpioa 13 0>, /* GPIO-E */
<18 0 &gpioa 14 0>, /* GPIO-F */
<19 0 &gpioa 12 0>, /* GPIO-G */
<20 0 &gpiob 4 0>; /* GPIO-H */
};
};
lscon_96b_i2c0: &i2c1 {};
lscon_96b_uart0: &usart1 {};

1
boards/arm/96b_wistrio/96b_wistrio.dts
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@ -6,6 +6,7 @@
/dts-v1/;
#include <st/l1/stm32l151Xb-a.dtsi>
#include "96b_lscon.dtsi"
/ {
model = "RAKWireless 96boards WisTrio board";

5
boards/arm/96b_wistrio/doc/96b_wistrio.rst
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@ -19,7 +19,7 @@ boards.
96Boards WisTrio
This board is one of the 96Boards IoT Edition platform providing LoRa
This board is one of the `96Boards IoT Edition`_ platforms providing LoRa
connectivity.
Hardware
@ -212,3 +212,6 @@ References
.. _Getting started page:
https://github.com/blacksphere/blackmagic/wiki/Getting-Started
.. _96Boards IoT Edition:
https://linaro.co/ie-specification