[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/mips/lasat/at93c.h b/src/kernel/linux/v4.14/arch/mips/lasat/at93c.h
new file mode 100644
index 0000000..7a99a02
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/mips/lasat/at93c.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Atmel AT93C46 serial eeprom driver
+ *
+ * Brian Murphy <brian.murphy@eicon.com>
+ *
+ */
+
+extern struct at93c_defs {
+	volatile u32 *reg;
+	volatile u32 *rdata_reg;
+	int rdata_shift;
+	int wdata_shift;
+	u32 cs;
+	u32 clk;
+} *at93c;
+
+u8 at93c_read(u8 addr);
+void at93c_write(u8 addr, u8 data);