1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/lib/acpi_s3.c b/arch/x86/lib/acpi_s3.c
new file mode 100644
index 0000000000..f679c06deb
--- /dev/null
+++ b/arch/x86/lib/acpi_s3.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2017, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/acpi_s3.h>
+#include <asm/post.h>
+
+static void asmlinkage (*acpi_do_wakeup)(void *vector) = (void *)WAKEUP_BASE;
+
+static void acpi_jump_to_wakeup(void *vector)
+{
+	/* Copy wakeup trampoline in place */
+	memcpy((void *)WAKEUP_BASE, __wakeup, __wakeup_size);
+
+	printf("Jumping to OS waking vector %p\n", vector);
+	acpi_do_wakeup(vector);
+}
+
+void acpi_resume(void *wake_vec)
+{
+	post_code(POST_OS_RESUME);
+	acpi_jump_to_wakeup(wake_vec);
+}