1 files changed, 67 insertions, 0 deletions
diff --git a/bsps/include/bsp/fdt.h b/bsps/include/bsp/fdt.h
new file mode 100644
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+++ b/bsps/include/bsp/fdt.h
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+/*
+ * Copyright (c) 2015, 2017 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef LIBBSP_SHARED_FDT_H
+#define LIBBSP_SHARED_FDT_H
+
+#include <bsp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * BSPs that implement the FDT support functions must define
+ * BSP_FDT_IS_SUPPORTED.
+ */
+
+/**
+ * @brief Copies the specified source FDT to a dedicated global data area.
+ *
+ * The source FDT is usually provided by a bootloader and may be located in a
+ * memory area that is used by the program.  The low-level initialization
+ * should copy the FDT for later use.
+ *
+ * The copy can be accessed by bsp_fdt_get().
+ *
+ * @param[in] src The source FDT.
+ */
+void bsp_fdt_copy(const void *src);
+
+/**
+ * @brief Returns the FDT of the BSP.
+ *
+ * @return The FDT of the BSP.
+ */
+const void *bsp_fdt_get(void);
+
+/**
+ * @brief Maps the interrupt number of the FDT to the interrupt vector used by
+ * the interrupt management.
+ *
+ * This function is used by the libbsd to implement the OFW_BUS_MAP_INTR bus
+ * method.
+ *
+ * @param[in] intr The FDT interrupt number cells.
+ * @param[in] icells The FDT interrupt cell count.
+ *
+ * @return The interrupt vector of the FDT interrupt number.
+ */
+uint32_t bsp_fdt_map_intr(const uint32_t *intr, size_t icells);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* LIBBSP_SHARED_FDT_H */