1 files changed, 39 insertions, 0 deletions
diff --git a/plat/intel/soc/common/soc/socfpga_handoff.c b/plat/intel/soc/common/soc/socfpga_handoff.c
new file mode 100644
index 0000000..4bb3a96
--- /dev/null
+++ b/plat/intel/soc/common/soc/socfpga_handoff.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2019, Intel Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <string.h>
+
+#include "socfpga_handoff.h"
+
+#define SWAP_UINT32(x) (((x) >> 24) | (((x) & 0x00FF0000) >> 8) |	\
+				(((x) & 0x0000FF00) << 8) | ((x) << 24))
+
+int socfpga_get_handoff(handoff *reverse_hoff_ptr)
+{
+	int i;
+	uint32_t *buffer;
+	handoff *handoff_ptr = (handoff *) PLAT_HANDOFF_OFFSET;
+
+	memcpy(reverse_hoff_ptr, handoff_ptr, sizeof(handoff));
+	buffer = (uint32_t *)reverse_hoff_ptr;
+
+	/* convert big endian to little endian */
+	for (i = 0; i < sizeof(handoff) / 4; i++)
+		buffer[i] = SWAP_UINT32(buffer[i]);
+
+	if (reverse_hoff_ptr->header_magic != HANDOFF_MAGIC_HEADER)
+		return -1;
+	if (reverse_hoff_ptr->pinmux_sel_magic != HANDOFF_MAGIC_PINMUX_SEL)
+		return -1;
+	if (reverse_hoff_ptr->pinmux_io_magic != HANDOFF_MAGIC_IOCTLR)
+		return -1;
+	if (reverse_hoff_ptr->pinmux_fpga_magic != HANDOFF_MAGIC_FPGA)
+		return -1;
+	if (reverse_hoff_ptr->pinmux_delay_magic != HANDOFF_MAGIC_IODELAY)
+		return -1;
+
+	return 0;
+}