[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/arch/mips/ralink/irq-gic.c b/src/kernel/linux/v4.19/arch/mips/ralink/irq-gic.c
new file mode 100644
index 0000000..bda576f
--- /dev/null
+++ b/src/kernel/linux/v4.19/arch/mips/ralink/irq-gic.c
@@ -0,0 +1,25 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Copyright (C) 2015 Nikolay Martynov <mar.kolya@gmail.com>
+ * Copyright (C) 2015 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/init.h>
+
+#include <linux/of.h>
+#include <linux/irqchip.h>
+#include <asm/mips-cps.h>
+
+int get_c0_perfcount_int(void)
+{
+	return gic_get_c0_perfcount_int();
+}
+EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
+
+void __init arch_init_irq(void)
+{
+	irqchip_init();
+}