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-rw-r--r--arch/arm/mach-uniphier/arm64/Makefile2
-rw-r--r--arch/arm/mach-uniphier/arm64/lowlevel_init.S14
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/arm64/Makefile b/arch/arm/mach-uniphier/arm64/Makefile
index eb34c207ce..06072f23bd 100644
--- a/arch/arm/mach-uniphier/arm64/Makefile
+++ b/arch/arm/mach-uniphier/arm64/Makefile
@@ -9,5 +9,7 @@ obj-y += mem_map.o
ifdef CONFIG_ARMV8_MULTIENTRY
obj-y += smp.o smp_kick_cpus.o
obj-$(CONFIG_ARCH_UNIPHIER_LD20) += arm-cci500.o
+else
+obj-$(CONFIG_ARCH_UNIPHIER_LD20) += lowlevel_init.o
endif
endif
diff --git a/arch/arm/mach-uniphier/arm64/lowlevel_init.S b/arch/arm/mach-uniphier/arm64/lowlevel_init.S
new file mode 100644
index 0000000000..e52db1d7fc
--- /dev/null
+++ b/arch/arm/mach-uniphier/arm64/lowlevel_init.S
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2017 Socionext Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <linux/linkage.h>
+
+ENTRY(lowlevel_init)
+ /* LD20 needs the following code to boot. I do not know why. */
+ mrs x0, sctlr_el1
+ msr sctlr_el1, x0
+ ret
+ENDPROC(lowlevel_init)