Import Android's dt_table.h for DT image format
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PATCH 1/1 Import Android's dt_table.h for DT image format
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.
--- include/dt_table.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 include/dt_table.h
include/dt_table.h new file +50 -0
@@ -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
Signature · 1 line
2.17.0.921.gf22659ad46-goog
PATCH 1/1 Import Android's dt_table.h for DT image format
Quoted 5 lines · Alex Deymo
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.
Quoted 9 lines
The header was adapted to U-Boot's coding style and the function declarations were removed.
Signed-off-by Alex Deymo <[email protected]>--- include/dt_table.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 include/dt_table.h
Hi Tom,
Can you please pull this one along with my patches for DT image support [1,2]?
Thanks!
[1] https://lists.denx.de/pipermail/u-boot/2018-April/326050.html
[2] https://lists.denx.de/pipermail/u-boot/2018-April/326051.html
Quoted 63 lines
include/dt_table.h new file +50
-1@@ -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 --2.17.0.921.gf22659ad46-goog
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Quoted 9 lines · Alex Deymo
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 <[email protected]>
Applied to u-boot/master, thanks!
Signature · 8 lines
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