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-rw-r--r--arch/mips/loongson64/cmdline.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/mips/loongson64/cmdline.c b/arch/mips/loongson64/cmdline.c
new file mode 100644
index 000000000000..fb1644b01471
--- /dev/null
+++ b/arch/mips/loongson64/cmdline.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Based on Ocelot Linux port, which is
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2003 ICT CAS
+ * Author: Michael Guo <guoyi@ict.ac.cn>
+ *
+ * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
+ * Author: Fuxin Zhang, zhangfx@lemote.com
+ *
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin, wuzhangjin@gmail.com
+ */
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+
+void __init prom_init_cmdline(void)
+{
+ int prom_argc;
+ /* pmon passes arguments in 32bit pointers */
+ int *_prom_argv;
+ int i;
+ long l;
+
+ /* firmware arguments are initialized in head.S */
+ prom_argc = fw_arg0;
+ _prom_argv = (int *)fw_arg1;
+
+ /* arg[0] is "g", the rest is boot parameters */
+ arcs_cmdline[0] = '\0';
+ for (i = 1; i < prom_argc; i++) {
+ l = (long)_prom_argv[i];
+ if (strlen(arcs_cmdline) + strlen(((char *)l) + 1)
+ >= sizeof(arcs_cmdline))
+ break;
+ strcat(arcs_cmdline, ((char *)l));
+ strcat(arcs_cmdline, " ");
+ }
+}