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Do not attempt to print fdt info if root node wasn't found.
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
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Currently, 'dtimg' allows users to check indexes equal to
dt_entry_count [1]. Forbid that [2].
[1] Behavior w/o the patch:
=> ext2load mmc 0:1 0x48000000 dtb.img
105695 bytes read in 5 ms (20.2 MiB/s)
=> dtimg dump 0x48000000
dt_table_header:
magic = d7b7ab1e
total_size = 105695
header_size = 32
dt_entry_size = 32
dt_entry_count = 2
dt_entries_offset = 32
page_size = 4096
version = 0
dt_table_entry[0]:
dt_size = 105599
dt_offset = 96
id = 0b779520
rev = 00000000
custom[0] = 00000000
custom[1] = 00000000
custom[2] = 00000000
custom[3] = 00000000
(FDT)size = 105599
(FDT)compatible = shimafuji,kingfisher
dt_table_entry[1]:
dt_size = 105599
dt_offset = 96
id = 0b779530
rev = 00000000
custom[0] = 00000000
custom[1] = 00000000
custom[2] = 00000000
custom[3] = 00000000
(FDT)size = 105599
(FDT)compatible = shimafuji,kingfisher
=> dtimg size 0x48000000 0 z; print z
z=19c7f
=> dtimg size 0x48000000 1 z; print z
z=19c7f
=> dtimg size 0x48000000 2 z; print z
z=d00dfeed
=> dtimg size 0x48000000 3 z
Error: index > dt_entry_count (3 > 2)
[2] Behavior with the patch:
=> dtimg size 0x48000000 0 z; print z
z=19c7f
=> dtimg size 0x48000000 1 z; print z
z=19c7f
=> dtimg size 0x48000000 2 z
Error: index >= dt_entry_count (2 >= 2)
Fixes: c04473345712 ("common: Add support for Android DT image")
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
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Android documentation recommends new image format for storing DTB/DTBO
files: [1]. To support that format, this patch adds helper functions for
Android DTB/DTBO format. In image-android-dt.* files you can find helper
functions to work with Android DT image format, such us routines for:
- printing the dump of image structure
- getting the address and size of desired dtb/dtbo file
This patch uses dt_table.h file, that was added in commit 643cefa4d848
("Import Android's dt_table.h for DT image format") by Alex Deymo.
[1] https://source.android.com/devices/architecture/dto/partitions
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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