u-boot.git/disk/part.c, branch v2014.04

sandbox: Use os functions to read host device tree

2014-03-18T02:05:45+00:00

At present we use U-Boot's filesystem layer to read the sandbox device tree,
but this is problematic since it relies on a temporary feauture added
there. Since we plan to implement proper block layer support for sandbox,
change this code to use the os layer functions instead. Also use the new
fdt_create_empty_tree() instead of our own code.

Signed-off-by: Simon Glass

sandbox: block driver using host file/device as backing store

2014-01-09T00:24:03+00:00

Provide a way to use any host file or device as a block device in U-Boot.
This can be used to provide filesystem access within U-Boot to an ext2
image file on the host, for example.

The support is plumbed into the filesystem and partition interfaces.

We don't want to print a message in the driver every time we find a missing
device. Pass the information back to the caller where a message can be printed
if desired.

Signed-off-by: Henrik Nordström 
Signed-off-by: Simon Glass 
- Removed change to part.c get_device_and_partition()

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

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

fs/ext4: fix log2blksz un-initialized error, by cacaulating its value from blksz

2013-07-22T14:09:56+00:00

The problem here is that uboot can't mount ext4 filesystem with
commit "50ce4c07df1" applied. We use hard-coded "SECTOR_SIZE"(512)
before this commit, now we introduce (block_dev_desc_t *)->log2blksz
to replace this macro. And after we calling do_ls()->fs_set_blk_dev(),
the variable log2blksz is not initialized, which it's not correct.

And this patch try to solve the problem by caculating the value of
log2blksz from variable blksz.

disk: define HAVE_BLOCK_DEVICE in a common place

2013-03-14T18:06:44+00:00

This set of ifdefs is used in a number of places. Move its definition
somewhere common so it doesn't have to be repeated.

Signed-off-by: Stephen Warren 
Acked-by: Simon Glass 
Acked-by: Tom Rini 
Signed-off-by: Tom Warren

sandbox: Add host filesystem

2013-03-04T19:19:56+00:00

This allows reading of files from the host filesystem in sandbox.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

part: check each variable for capability calculation

2012-12-06T20:56:39+00:00

In order to calculate the capability, we use the below expression to check:
((dev_desc->lba * dev_desc->blksz)>0L)
If the capability is greater than 4GB (e.g. 8GB = 8 * 1024 * 104 * 1024),
the result will overflow, the low 32bit may be zero.

Therefore, change to check each variable to fix this potential issue.

Signed-off-by: Jerry Huang

disk: Make the disk partition code work with no specific partition types

2012-10-22T15:29:55+00:00

Currently, if the disk partition code is compiled with all of the parition
types compiled out, it hits an #error which stops the build. This change
adjusts that file so that those functions will fall through to their defaults
in those cases instead of breaking the build. These functions are needed
because other code calls them, and that code is needed because other config
options are overly broad and bring in support we don't need along with
support we do.

Also reduce repetition of the 6-term #ifdef throughout the file.

Signed-off-by: Gabe Black 
Signed-off-by: Simon Glass

disk: initialize name/part fields when returning a whole disk

2012-10-19T20:42:33+00:00

When get_device_and_partition() finds a disk without a partition table,
under some conditions, it "returns" a disk_partition_t that describes
the entire raw disk. Make sure to initialize all fields in the partition
descriptor in that case.

The value chosen for name is just some arbitrary descriptive string.

The value chosen for info matches the check at the end of
get_device_and_partition(). However, it's probably not that important;
it's not obvious that the value is really used.

Reported-by: Benoît Thébaudeau 
Signed-off-by: Stephen Warren 
Reviewed-by: Benoît Thébaudeau 
Signed-off-by: Tom Rini

disk: get_device_and_partition() return value fixes

2012-10-17T14:59:09+00:00

When no valid partitions are found, guarantee that we return -1. This
most likely already happens, since the most recent get_partition_info()
will have returned an error. However, it's best to be explicit.

Remove an unnecessary assignment of ret=0 in the success case; this value
is over-written with the processed partition ID later.

Signed-off-by: Stephen Warren