Android documentation defines the recommended image format for storing DTB/DTBO files in a single dtbo.img image. This patch includes the latest header file with the struct definitions for this format from AOSP.
The header was adapted to U-Boot's coding style and the function declarations were removed.
Signed-off-by: Alex Deymo deymo@google.com --- include/dt_table.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 include/dt_table.h
diff --git a/include/dt_table.h b/include/dt_table.h new file mode 100644 index 00000000000..f91657c0c76 --- /dev/null +++ b/include/dt_table.h @@ -0,0 +1,50 @@ +/* + * This is from the Android Project, + * Repository: https://android.googlesource.com/platform/system/libufdt + * File: utils/src/dt_table.h + * Commit: 2626d8b9e4d8e8c6cc67ceb1dc4e05a47779785c + * Copyright (C) 2017 The Android Open Source Project + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef DT_TABLE_H +#define DT_TABLE_H + +#include <linux/types.h> + +#define DT_TABLE_MAGIC 0xd7b7ab1e +#define DT_TABLE_DEFAULT_PAGE_SIZE 2048 +#define DT_TABLE_DEFAULT_VERSION 0 + +struct dt_table_header { + u32 magic; /* DT_TABLE_MAGIC */ + u32 total_size; /* includes dt_table_header + all dt_table_entry + * and all dtb/dtbo + */ + u32 header_size; /* sizeof(dt_table_header) */ + + u32 dt_entry_size; /* sizeof(dt_table_entry) */ + u32 dt_entry_count; /* number of dt_table_entry */ + u32 dt_entries_offset; /* offset to the first dt_table_entry + * from head of dt_table_header. + * The value will be equal to header_size if + * no padding is appended + */ + u32 page_size; /* flash page size we assume */ + u32 version; /* DTBO image version, the current version is 0. + * The version will be incremented when the + * dt_table_header struct is updated. + */ +}; + +struct dt_table_entry { + u32 dt_size; + u32 dt_offset; /* offset from head of dt_table_header */ + + u32 id; /* optional, must be zero if unused */ + u32 rev; /* optional, must be zero if unused */ + u32 custom[4]; /* optional, must be zero if unused */ +}; + +#endif