aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-keystone/smc.S
diff options
context:
space:
mode:
authorSantosh Shilimkar <santosh.shilimkar@ti.com>2013-06-21 18:54:47 -0400
committerArnd Bergmann <arnd@arndb.de>2013-06-24 16:23:36 +0200
commit3aae7ab0f15d69166789cf84aea39e6b438c4c26 (patch)
tree79326b144c155370799c3bbffb2f60c9b33f374c /arch/arm/mach-keystone/smc.S
parent24e860fbfdb1c3f97d17d3578a146f3b42b9ad83 (diff)
downloadlinux-linaro-stable-3aae7ab0f15d69166789cf84aea39e6b438c4c26.tar.gz
ARM: keystone: Move CPU bringup code to dedicated asm file
Because of inline asm usage in platsmp.c, smc instruction creates build failure for ARM V6+V7 build where as using instruction encoding for smc breaks the thumb2 build. So move the code snippet to separate asm file and mark it with 'armv7-a$(plus_sec)' to avoid any build issues. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-keystone/smc.S')
-rw-r--r--arch/arm/mach-keystone/smc.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/mach-keystone/smc.S b/arch/arm/mach-keystone/smc.S
new file mode 100644
index 000000000000..9b9e4f7b241e
--- /dev/null
+++ b/arch/arm/mach-keystone/smc.S
@@ -0,0 +1,29 @@
+/*
+ * Keystone Secure APIs
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+/**
+ * u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr)
+ *
+ * Low level CPU monitor API
+ * @command: Monitor command.
+ * @cpu: CPU Number
+ * @addr: Kernel jump address for boot CPU
+ *
+ * Return: Non zero value on failure
+ */
+ENTRY(keystone_cpu_smc)
+ stmfd sp!, {r4-r12, lr}
+ smc #0
+ dsb
+ ldmfd sp!, {r4-r12, pc}
+ENDPROC(keystone_cpu_smc)