diff -drupN a/include/linux/sunxi-smc.h b/include/linux/sunxi-smc.h
--- a/include/linux/sunxi-smc.h	1970-01-01 03:00:00.000000000 +0300
+++ b/include/linux/sunxi-smc.h	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,46 @@
+/*
+ * drivers/char/sunxi_sys_info/sunxi-smc.c
+ *
+ * Copyright(c) 2015-2016 Allwinnertech Co., Ltd.
+ *         http://www.allwinnertech.com
+ *
+ * Author: sunny <superm@allwinnertech.com>
+ *
+ * allwinner sunxi soc chip version and chip id manager.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __SUNXI_SMC_H
+#define __SUNXI_SMC_H
+
+#ifdef CONFIG_SUNXI_SMC
+extern int invoke_smc_fn(u32 function_id, u64 arg0, u64 arg1, u64 arg2);
+extern u32 sunxi_smc_readl(phys_addr_t addr);
+extern int sunxi_smc_writel(u32 value, phys_addr_t addr);
+extern int sunxi_smc_probe_secure(void);
+extern int sunxi_soc_is_secure(void);
+extern int sunxi_smc_copy_arisc_paras(phys_addr_t dest, phys_addr_t src, u32 len);
+#else
+static inline u32 sunxi_smc_readl(phys_addr_t addr)
+{
+	void __iomem *vaddr = ioremap(addr, 4);
+	u32 ret;
+	ret = readl(vaddr);
+	iounmap(vaddr);
+	return ret;
+	return readl((void __iomem *)addr);
+}
+static inline int sunxi_smc_writel(u32 val, phys_addr_t addr)
+{
+	void __iomem *vaddr = ioremap(addr, 4);
+	writel(val, vaddr);
+	iounmap(vaddr);
+	return 0;
+}
+#endif
+
+#endif  /* __SUNXI_SMC_H */