1 files changed, 41 insertions, 0 deletions

diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c
new file mode 100644
index 000000000000..9dbd803e46e1
--- /dev/null
+++ b/arch/sparc/prom/devops_64.c
@@ -0,0 +1,41 @@
+/*
+ * devops.c:  Device operations using the PROM.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+
+/* Open the device described by the string 'dstr'.  Returns the handle
+ * to that device used for subsequent operations on that device.
+ * Returns 0 on failure.
+ */
+int
+prom_devopen(const char *dstr)
+{
+        return p1275_cmd ("open", P1275_ARG(0,P1275_ARG_IN_STRING)|
+                                  P1275_INOUT(1,1),
+                                  dstr);
+}
+
+/* Close the device described by device handle 'dhandle'. */
+int
+prom_devclose(int dhandle)
+{
+        p1275_cmd ("close", P1275_INOUT(1,0), dhandle);
+        return 0;
+}
+
+/* Seek to specified location described by 'seekhi' and 'seeklo'
+ * for device 'dhandle'.
+ */
+void
+prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo)
+{
+        p1275_cmd ("seek", P1275_INOUT(3,1), dhandle, seekhi, seeklo);
+}