u-boot.git/disk/part_dos.c, branch v2012.10

disk: part_dos: don't claim whole-disk FAT filesystems

2012-10-08T18:15:04+00:00

Logically, a disk that contains a raw FAT filesystem does not in fact
have a partition table. However, test_part_dos() was claiming that such
disks did in fact have a DOS-style partition table. This caused
get_device_and_partition() not to return a whole-disk disk_partition_t,
since part_type != PART_TYPE_UNKNOWN.

part_dos.c's print_partition_extended() detected the raw FAT filesystem
condition and printed a fake partition table that encompassed the whole
disk.

However, part_dos.c's get_partition_info_extended() did not return any
valid partitions in this case. This combination caused
get_device_and_partition() not to find any valid partitions, and hence
to return an error.

Fix test_part_dos() not to claim that raw FAT filesystems are DOS
partition tables. In turn, this causes get_device_and_partition() to
return a whole-disk disk_partition_t, and hence the following commands
work:

fatls mmc 0 /
fatls mmc 0:auto /

An alternative would be to modify print_partition_extended() to detect
raw FAT filesystems, just like print_partition_extended() does, and to
return a fake partition in this case. However, this seems logically
incorrect, and also duplicates code, since get_device_and_partition()
falls back to returning a whole-disk partition when there is no partition
table on the device.

Signed-off-by: Stephen Warren

disk: part_msdos: parse and store partition UUID

2012-09-25T22:05:45+00:00

The MSDOS/MBR partition table includes a 32-bit unique ID, often referred
to as the NT disk signature. When combined with a partition number within
the table, this can form a unique ID similar in concept to EFI/GPT's
partition UUID.

This patch generates UUIDs in the format 0002dd75-01, which matches the
format expected by the Linux kernel.

Signed-off-by: Stephen Warren

disk/part: check bootable flag for DOS partitions

2012-09-25T21:43:19+00:00

Determine which partitions are bootable/active. In the partition listing,
print "Boot" for partitions with the bootable/active flag set.

Signed-off-by: Rob Herring

Block: Remove MG DISK support

2012-06-21T18:53:09+00:00

This driver is unused and obsolete.

Signed-off-by: Marek Vasut 
Cc: Wolfgang Denk 
Cc: unsik Kim

part_dos: align disk buffers on cache line to enable DMA and cache

2012-04-30T14:54:50+00:00

Signed-off-by: Eric Nelson 
Acked-by: Mike Frysinger

part_dos: fix crash with big sector size

2011-07-27T21:41:33+00:00

Apple iPod nanos have sector sizes of 2 or 4 KiB, which crashes U-Boot when it
tries to read the MBR into 512-byte buffer situated on stack. Instead use the
variable length arrays to be safe with any large sector size.

Signed-off-by: Sergei Shtylyov

FAT32: fix support for superfloppy-format (PBR)

2010-07-24T18:53:43+00:00

"Superfloppy" format (in U-Boot called PBR) did not work for FAT32 as
the file system type string is at a different location. Add support
for FAT32.

Signed-off-by: Wolfgang Denk

part_dos: check status flags of partitions

2009-10-18T20:50:21+00:00

Only read partitions which have 0x00 or 0x80 set in their status field.
All others are invalid.

Signed-off-by: Daniel Mack

Partition support: remove newline from partition name

2009-08-09T20:52:38+00:00

Remove bogus newline character that got added to the .name field of
the disk_partition_t structure.

Signed-off-by: Wolfgang Denk

mflash: Initial mflash support

2009-04-03T21:47:06+00:00

Mflash is fusion memory device mainly targeted consumer eletronic and
mobile phone.
Internally, it have nand flash and other hardware logics and supports
some different operation (ATA, IO, XIP) modes.

IO mode is custom mode for the host that doesn't have IDE interface.
(Many mobile targeted SoC doesn't have IDE bus)

This driver support mflash IO mode.

Followings are brief descriptions about IO mode.

1. IO mode based on ATA protocol and uses some custom command. (read
   confirm, write confirm)
2. IO mode uses SRAM bus interface.

Signed-off-by: unsik Kim