ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/sparc/prom/p1275.c b/marvell/linux/arch/sparc/prom/p1275.c
new file mode 100644
index 0000000..51c3f98
--- /dev/null
+++ b/marvell/linux/arch/sparc/prom/p1275.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * p1275.c: Sun IEEE 1275 PROM low level interface routines
+ *
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/string.h>
+#include <linux/spinlock.h>
+#include <linux/irqflags.h>
+
+#include <asm/openprom.h>
+#include <asm/oplib.h>
+#include <asm/spitfire.h>
+#include <asm/pstate.h>
+#include <asm/ldc.h>
+
+struct {
+ long prom_callback; /* 0x00 */
+ void (*prom_cif_handler)(long *); /* 0x08 */
+} p1275buf;
+
+extern void prom_world(int);
+
+extern void prom_cif_direct(unsigned long *args);
+extern void prom_cif_callback(void);
+
+/*
+ * This provides SMP safety on the p1275buf.
+ */
+DEFINE_RAW_SPINLOCK(prom_entry_lock);
+
+void p1275_cmd_direct(unsigned long *args)
+{
+ unsigned long flags;
+
+ local_save_flags(flags);
+ local_irq_restore((unsigned long)PIL_NMI);
+ raw_spin_lock(&prom_entry_lock);
+
+ prom_world(1);
+ prom_cif_direct(args);
+ prom_world(0);
+
+ raw_spin_unlock(&prom_entry_lock);
+ local_irq_restore(flags);
+}
+
+void prom_cif_init(void *cif_handler)
+{
+ p1275buf.prom_cif_handler = (void (*)(long *))cif_handler;
+}