u-boot.git/disk/part_dos.c, branch v2024.01

cmd: mbr: Allow 4 MBR partitions without need for extended

2023-10-24T21:05:24+00:00

Current code allows up to 3 MBR partitions without extended one.
If more than 3 partitions are required, then extended partition(s)
must be used.
This commit allows up to 4 primary MBR partitions without the
need for extended partition.

Add mbr test unit. In order to run the test manually, mmc6.img file
of size 12 MiB or greater is required in the same directory as u-boot.
Test also runs automatically via ./test/py/test.py tool.
Running mbr test is only supported in sandbox mode.

Signed-off-by: Alex Gendin 
[ And due to some further changes for testing ]
Signed-off-by: Simon Glass

part: Add accessors for struct disk_partition uuid

2023-08-25T21:55:18+00:00

This field is only present when a CONFIG is set. To avoid annoying #ifdefs
in the source code, add accessors. Update all code to use it.

Note that the accessor is optional. It can be omitted if it is known that
the option is enabled.

Signed-off-by: Simon Glass

part: dos: Use desc instead of dev_desc

2023-08-25T21:55:18+00:00

The dev_ prefix is a hangover from the pre-driver model days. The device
is now a different thing, with driver model. Update the dos code to
just use 'desc'.

Signed-off-by: Simon Glass

disk: dos: Infer MBR partition sector size from underlying drive sector size

2023-08-22T19:17:52+00:00

Block devices with 4k sectors imply the MBR sectors are also 4k instead
of regular 512B. Avoid hard-coding the 512B sector size and isntead read
the current block device sector size from it, and if the sector size is
larger than 512B, use the block device sector size.

Signed-off-by: Marek Vasut 
Reviewed-by: Simon Glass

Correct SPL use of CMD_MBR

2023-02-09T21:32:25+00:00

This converts 1 usage of this option to the non-SPL form, since there is
no SPL_CMD_MBR defined in Kconfig

Signed-off-by: Simon Glass

disk: Use Makefile to omit partition drivers

2022-09-16T15:05:00+00:00

At present these files have an #ifdef covering the whole file. Move the
condition to the Makefile instead.

Add BLK to the condition since future patches will adjust things so that
HAVE_BLOCK_DEVICE is only for SPL, but the partition drivers are needed
in U-Boot proper too.

Signed-off-by: Simon Glass

disk: part_dos: Fix a NULL pointer error

2021-11-28T23:51:51+00:00

When ext is NULL we cannot dereference it. Update the code flow to avoid
this, so that layout_mbr_partitions() can be used with partition tables
that do not include an extended partition.

Signed-off-by: Simon Glass

disk/part_dos.c: Fix a variable typo in write_mbr_partitions()

2021-06-22T17:58:08+00:00

This function is passed *dev not *dev_desc, so pass the right name to
part_init().

Fixes: f14c5ee5ab8b ("disk: part_dos: update partition table entries after write")
Signed-off-by: Christian Melki

disk: part_dos: update partition table entries after write

2021-02-01T21:32:06+00:00

Fixes issues when switching from GPT to MBR partition tables.

Signed-off-by: Gary Bisson 
Acked-by: Marek Szyprowski

disk: dos: add code for creating MBR partition layout

2021-01-15T20:33:09+00:00

Add a code for creating and writing MBR partition layout. The code generates
similar layout of EBRs (Exteneded Block Records) and logical volumes as
Linux's fdisk utility.

Signed-off-by: Marek Szyprowski