summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-highbank/smc.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-highbank/smc.S')
-rw-r--r--arch/arm/mach-highbank/smc.S25
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm/mach-highbank/smc.S b/arch/arm/mach-highbank/smc.S
new file mode 100644
index 000000000..78b3f19e7
--- /dev/null
+++ b/arch/arm/mach-highbank/smc.S
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copied from omap44xx-smc.S Copyright (C) 2010 Texas Instruments, Inc.
+ * Copyright 2012 Calxeda, Inc.
+ */
+
+#include <linux/linkage.h>
+
+/*
+ * This is common routine to manage secure monitor API
+ * used to modify the PL310 secure registers.
+ * 'r0' contains the value to be modified and 'r12' contains
+ * the monitor API number.
+ * Function signature : void highbank_smc1(u32 fn, u32 arg)
+ */
+ .arch armv7-a
+ .arch_extension sec
+ENTRY(highbank_smc1)
+ stmfd sp!, {r4-r11, lr}
+ mov r12, r0
+ mov r0, r1
+ dsb
+ smc #0
+ ldmfd sp!, {r4-r11, pc}
+ENDPROC(highbank_smc1)