[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/include/dt-bindings/pinctrl/am33xx.h b/src/kernel/linux/v4.19/include/dt-bindings/pinctrl/am33xx.h
new file mode 100644
index 0000000..7d947a5
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/dt-bindings/pinctrl/am33xx.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants specific to AM33XX pinctrl bindings.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_AM33XX_H
+#define _DT_BINDINGS_PINCTRL_AM33XX_H
+
+#include <dt-bindings/pinctrl/omap.h>
+
+/* am33xx specific mux bit defines */
+#undef PULL_ENA
+#undef INPUT_EN
+
+#define PULL_DISABLE		(1 << 3)
+#define INPUT_EN		(1 << 5)
+#define SLEWCTRL_SLOW		(1 << 6)
+#define SLEWCTRL_FAST		0
+
+/* update macro depending on INPUT_EN and PULL_ENA */
+#undef PIN_OUTPUT
+#undef PIN_OUTPUT_PULLUP
+#undef PIN_OUTPUT_PULLDOWN
+#undef PIN_INPUT
+#undef PIN_INPUT_PULLUP
+#undef PIN_INPUT_PULLDOWN
+
+#define PIN_OUTPUT		(PULL_DISABLE)
+#define PIN_OUTPUT_PULLUP	(PULL_UP)
+#define PIN_OUTPUT_PULLDOWN	0
+#define PIN_INPUT		(INPUT_EN | PULL_DISABLE)
+#define PIN_INPUT_PULLUP	(INPUT_EN | PULL_UP)
+#define PIN_INPUT_PULLDOWN	(INPUT_EN)
+
+/* undef non-existing modes */
+#undef PIN_OFF_NONE
+#undef PIN_OFF_OUTPUT_HIGH
+#undef PIN_OFF_OUTPUT_LOW
+#undef PIN_OFF_INPUT_PULLUP
+#undef PIN_OFF_INPUT_PULLDOWN
+#undef PIN_OFF_WAKEUPENABLE
+
+#endif
+