u-boot.git/fs/fat, branch v2012.10

FAT: check for partition 0 not 1 for whole-disk fs

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

The recent switch to use get_device_and_partition() from do_fat_ls()
broke the ability to access a FAT filesystem directly on a whole device;
FAT only works within a partition on a device.

This change makes e.g. "fatls mmc 0:0" work; explicitly requesting
partition ID 0 is something that get_device_and_partition() fully
supports. However, fat_register_device() expects partition ID 1 to be
used in the full-disk case; partition ID 1 was previously implicitly
specified when the user didn't actually specify a partition ID. Update
fat_register_device() to expect the correct ID.

This change does imply that if a user explicitly executes "fatls mmc 0:1"
then this will fail, and may be a change in behaviour.

Note that this still prevents "fatls mmc 0:auto" from working. The next
patch will fix that.

Signed-off-by: Stephen Warren

FAT: Make it possible to read from any file position

2012-09-26T18:11:32+00:00

When storage devices contain files larger than the embedded RAM, it is
useful to be able to read these files by chunks, e.g. for a software
update to the embedded NAND Flash from an external storage device (USB
stick, SD card, etc.).

Hence, this patch makes it possible by adding a new FAT API to read
files from a given position. This patch also adds this feature to the
fatload command.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk 
Signed-off-by: Tom Rini

FAT: Fix file contents listed as directory

2012-09-18T19:01:53+00:00

With:
fatls mmc 0 /dir/file
dir: regular directory
file: regular file

The previous code read the contents of file as if it were directory entries to
list. This patch refuses to list file contents as if it were a folder.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: Simplify get_contents

2012-09-02T15:22:43+00:00

One call to get_cluster can be factorized with another, so avoid
duplicating code.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: get_cluster: Add buffer bouncing

2012-09-02T15:22:10+00:00

Add a buffer bouncing mechanism to get_cluster.  This can be useful
for misaligned applicative buffers passed through get_contents.
This is required for the following patches in the case of data
aligned differently relatively to buffers and clusters.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: Fix redundant sector read

2012-09-02T15:16:08+00:00

With the previous code, the remaining prefetched sectors were read
again after each sector.  With this patch, each sector is read only
once, thus making the prefetch useful.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: cosmetic: Remove useless assignment

2012-09-02T15:15:16+00:00

fatlength is not used after this assignment, so it is useless and can
be removed.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: get_fatent: Fix FAT boundary check

2012-09-02T15:14:30+00:00

startblock must be taken into account in order not to read past the
end of the FAT.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

FAT: cosmetic: Remove extra spaces

2012-09-02T15:13:18+00:00

Remove spaces before opening parentheses in function calls.

Signed-off-by: Benoît Thébaudeau 
Cc: Wolfgang Denk

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