1 files changed, 37 insertions, 0 deletions
diff --git a/app/boards/arm/nrfmicro/pinmux.c b/app/boards/arm/nrfmicro/pinmux.c
new file mode 100644
index 0000000..c02ca92
--- /dev/null
+++ b/app/boards/arm/nrfmicro/pinmux.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2020 Okke Formsma, joric
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <kernel.h>
+#include <device.h>
+#include <init.h>
+#include <drivers/gpio.h>
+#include <sys/sys_io.h>
+#include <devicetree.h>
+
+static int pinmux_nrfmicro_init(struct device *port)
+{
+	ARG_UNUSED(port);
+
+	struct device *p1 = device_get_binding("GPIO_1");
+
+#if CONFIG_BOARD_NRFMICRO_13
+	struct device *p0 = device_get_binding("GPIO_0");
+	// enable EXT_VCC (use 0 for nRFMicro 1.3, use 1 for nRFMicro 1.1)
+	gpio_pin_configure(p1, 9, GPIO_OUTPUT);
+	gpio_pin_set(p1, 9, 0);
+
+	// enable charger (nRFMicro 1.3 only)
+	gpio_pin_configure(p0, 5, GPIO_OUTPUT);
+	gpio_pin_set(p0, 5, 0);
+#else
+    // enable EXT_VCC (use 0 for nRFMicro 1.3, use 1 for nRFMicro 1.1)
+	gpio_pin_configure(p1, 9, GPIO_OUTPUT);
+	gpio_pin_set(p1, 9, 1);
+#endif
+	return 0;
+}
+
+SYS_INIT(pinmux_nrfmicro_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);