1 files changed, 64 insertions, 0 deletions
diff --git a/lib/mbedtls/port/sha256_alt.h b/lib/mbedtls/port/sha256_alt.h
new file mode 100644
index 00000000000..80be94b0a06
--- /dev/null
+++ b/lib/mbedtls/port/sha256_alt.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2024 Linaro Limited
+ * Author: Raymond Mao <raymond.mao@linaro.org>
+ */
+#ifndef SHA256_ALT_H
+#define SHA256_ALT_H
+
+#include <image.h>
+#include <u-boot/sha256.h>
+
+typedef sha256_context mbedtls_sha256_context;
+
+static inline void mbedtls_sha256_init(mbedtls_sha256_context *ctx)
+{
+}
+
+static inline void mbedtls_sha256_free(mbedtls_sha256_context *ctx)
+{
+}
+
+static inline void mbedtls_sha256_clone(mbedtls_sha256_context *dst,
+					const mbedtls_sha256_context *src)
+{
+	*dst = *src;
+}
+
+static inline int mbedtls_sha256_starts(mbedtls_sha256_context *ctx, int is224)
+{
+	if (is224)
+		return -EOPNOTSUPP;
+
+	sha256_starts(ctx);
+	return 0;
+}
+
+static inline int mbedtls_sha256_update(mbedtls_sha256_context *ctx,
+					const unsigned char *input,
+					size_t ilen)
+{
+	sha256_update(ctx, input, ilen);
+	return 0;
+}
+
+static inline int mbedtls_sha256_finish(mbedtls_sha256_context *ctx,
+					unsigned char *output)
+{
+	sha256_finish(ctx, output);
+	return 0;
+}
+
+static inline int mbedtls_sha256(const unsigned char *input,
+				 size_t ilen,
+				 unsigned char *output,
+				 int is224)
+{
+	if (is224)
+		return -EOPNOTSUPP;
+
+	sha256_csum_wd(input, ilen, output, CHUNKSZ_SHA256);
+	return 0;
+}
+
+#endif /* sha256_alt.h */