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part: Add a function to find the first bootable partition

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If a disk has a bootable partition we are expected to use it to locate the
boot files. Add a function to find it.

To test this, update mmc1 to have two paritions, fixing up other tests
accordingly.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-01-17 10:47:41 -07:00 • committed by Tom Rini
parent 4146c823fc
commit dcffa4428d
6 changed files with 49 additions and 7 deletions
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8
include/part.h
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@ -303,6 +303,14 @@ part_get_info_by_dev_and_name_or_num(const char *dev_iface,
}
#endif
/**
* part_get_bootable() - Find the first bootable partition
*
* @desc: Block-device descriptor
* @return first bootable partition, or 0 if there is none
*/
int part_get_bootable(struct blk_desc *desc);
struct udevice;
/**
* part_create_block_devices - Create block devices for disk partitions