--- zzzz-none-000/linux-3.10.107/arch/mips/ralink/prom.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/mips/ralink/prom.c	2021-02-04 17:41:59.000000000 +0000
@@ -15,17 +15,25 @@
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
 
+#include <asm/mach-ralink/ralink_regs.h>
+
 #include "common.h"
 
 struct ralink_soc_info soc_info;
+struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
+
+enum ralink_soc_type ralink_soc;
+EXPORT_SYMBOL_GPL(ralink_soc);
 
 const char *get_system_type(void)
 {
 	return soc_info.sys_type;
 }
 
-static __init void prom_init_cmdline(int argc, char **argv)
+static __init void prom_init_cmdline(void)
 {
+	int argc;
+	char **argv;
 	int i;
 
 	pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
@@ -54,14 +62,11 @@
 
 void __init prom_init(void)
 {
-	int argc;
-	char **argv;
-
 	prom_soc_init(&soc_info);
 
 	pr_info("SoC Type: %s\n", get_system_type());
 
-	prom_init_cmdline(argc, argv);
+	prom_init_cmdline();
 }
 
 void __init prom_free_prom_memory(void)