1 files changed, 40 insertions, 0 deletions

diff --git a/arch/sparc64/prom/bootstr.c b/arch/sparc64/prom/bootstr.c
new file mode 100644
index 000000000000..a7278614e99d
--- /dev/null
+++ b/arch/sparc64/prom/bootstr.c
@@ -0,0 +1,40 @@
+/* $Id: bootstr.c,v 1.6 1999/08/31 06:55:01 davem Exp $
+ * bootstr.c:  Boot string/argument acquisition from the PROM.
+ *
+ * Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright(C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/string.h>
+#include <linux/init.h>
+#include <asm/oplib.h>
+
+/* WARNING: The boot loader knows that these next three variables come one right
+ *          after another in the .data section.  Do not move this stuff into
+ *          the .bss section or it will break things.
+ */
+
+#define BARG_LEN  256
+struct {
+        int bootstr_len;
+        int bootstr_valid;
+        char bootstr_buf[BARG_LEN];
+} bootstr_info = {
+        .bootstr_len = BARG_LEN,
+#ifdef CONFIG_CMDLINE
+        .bootstr_valid = 1,
+        .bootstr_buf = CONFIG_CMDLINE,
+#endif
+};
+
+char * __init
+prom_getbootargs(void)
+{
+        /* This check saves us from a panic when bootfd patches args. */
+        if (bootstr_info.bootstr_valid)
+                return bootstr_info.bootstr_buf;
+        prom_getstring(prom_chosen_node, "bootargs",
+                       bootstr_info.bootstr_buf, BARG_LEN);
+        bootstr_info.bootstr_valid = 1;
+        return bootstr_info.bootstr_buf;
+}