MIPS: Loongson1C: Add board support

Adds basic platform devices for Loongson1C, including serial port
and ethernet.

Signed-off-by: Yang Ling <gnaygnil@gmail.com>
Cc: keguang.zhang@gmail.com
Cc: chenhc@lemote.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13304/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/loongson32/ls1c/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for loongson1B based machines.
+#
+
+obj-y += board.o

arch/mips/loongson32/ls1c/board.c

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 Ling Yang <gnaygnil@gmail.com>
+ *
+ * This program is free software; you can redistribute	it and/or modify it
+ * under  the terms of	the GNU General	 Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <platform.h>
+
+static struct platform_device *ls1c_platform_devices[] __initdata = {
+	&ls1x_uart_pdev,
+	&ls1x_eth0_pdev,
+};
+
+static int __init ls1c_platform_init(void)
+{
+	int err;
+
+	ls1x_serial_set_uartclk(&ls1x_uart_pdev);
+
+	err = platform_add_devices(ls1c_platform_devices,
+				   ARRAY_SIZE(ls1c_platform_devices));
+	return err;
+}
+
+arch_initcall(ls1c_platform_init);