hw:add iomux API for EC200U module

Signed-off-by: Ajay Bhargav <[email protected]>

Author: ajaybhargav

include/hw/iomux.h

@@ -0,0 +1,45 @@
+/*
+ * iomux.h
+ *
+ */
+
+#ifndef __HW_IOMUX_H__
+#define __HW_IOMUX_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef PLATFORM_EC200U
+/**
+ * @brief Configure IOMUX for SPI port
+ * @note Only applicable to EC200U modules
+ * 
+ * @param port			[in] SPI Port Number (@ref spiport_e)
+ * @param select		[in] IOMUX pin selection
+ * @return 0 on success, negative value on error
+ */
+int spi_hw_setiomux(int port, int select);
+
+
+/**
+ * @brief Configure the IOMUX for UART1. This function must
+ * be called before using UART2.
+ * 
+ * Group 1: UART1_TXD: Pin 
+ * 
+ * @note only applicable to EC200U modules
+ * 
+ * @param select 0 to select group 1, 1 to select group 2
+ * 
+ * @return 0 on success, -1 on failure
+ */
+int uart1_setiomux(int select);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __HW_IOMUX_H__