u-boot.git/disk/part.c, branch v2016.03

mmc: emmc and hw partitions partition table id bugfix.

2016-01-20T15:19:19+00:00

On bootup the emmc's hw partition is always set to 0 and the partition
table is read from it. When switching to another hw partition the
partition table's id is not updated but instead the old one from
hw partition 0 is used. If there is no partition table on hw partition 0
then the code will terminate and return error even if the desired hw
partition contains a perfectly fine partition table. This fix updates
the partition table struct to correspond to the specified hw partition
before testing if the partition table is valid or not.

Signed-off-by: Erik Tideman 
Reviewed-by: Tom Rini 
[trini: Squash the patch that corrected whitespace in the original into
this one, wrap with HAVE_BLOCK_DEVICE test]
Signed-off-by: Tom Rini

gpt: add optional parameter type in gpt command

2015-11-12T20:58:58+00:00

code under flag CONFIG_PARTITION_TYPE_GUID
add parameter "type" to select partition type guid

example of use with gpt command :

  partitions = uuid_disk=${uuid_gpt_disk}; \
      name=boot,size=0x6bc00,uuid=${uuid_gpt_boot}; \
      name=root,size=0x7538ba00,uuid=${uuid_gpt_root}, \
         type=0fc63daf-8483-4772-8e79-3d69d8477de4;

  gpt write mmc 0 $partitions

Signed-off-by: Patrick Delaunay

ubifs: Add generic fs support

2015-10-24T17:50:32+00:00

Add generic fs support, so that commands like ls, load and test -e can be
used on ubifs.

Signed-off-by: Hans de Goede 
Reviewed-by: Heiko Schocher

disk/part: Only build hostfs special handling when CONFIG_SANDBOX is set

2015-10-24T17:50:31+00:00

This is not necessary / useful when not building with CONFIG_SANDBOX and
with the addition of ubifs support to the generic fs commands it actually
gets in the way, since both operate on a fake / NULL blkdev.

Signed-off-by: Hans de Goede 
Acked-by: Stephen Warren

disk/part.c: make local function static

2014-10-25T11:02:00+00:00

Signed-off-by: Jeroen Hofstee

cleanup disk/part.c whitespace

2014-09-24T22:30:28+00:00

Cleanup disk/part.c

Signed-off-by: Pavel Machek

whitespace cleanups

2014-07-22T11:44:27+00:00

Whitespace cleanups.

Signed-off-by: Pavel Machek

sandbox: restore ability to access host fs through standard commands

2014-06-23T21:37:23+00:00

Commit 95fac6ab4589 "sandbox: Use os functions to read host device tree"
removed the ability for get_device_and_partition() to handle the "host"
device type, and redirect accesses to it to the host filesystem. This
broke some unit tests that use this feature. So, revert that change. The
code added back by this patch is slightly different to pacify checkpatch.

However, we're then left with "host" being both:
- A pseudo device that accesses the hosts real filesystem.
- An emulated block device, which accesses "sectors" inside a file stored
  on the host.

In order to resolve this discrepancy, rename the pseudo device from host
to hostfs, and adjust the unit-tests for this change.

The "help sb" output is modified to reflect this rename, and state where
the host and hostfs devices should be used.

Signed-off-by: Stephen Warren 
Tested-by: Josh Wu 
Acked-by: Simon Glass 
Tested-by: Simon Glass

disk: default to HW partition 0 if not specified

2014-06-12T12:21:12+00:00

Currently, get_device()/get_dev_hwpart() for MMC devices does not select
an explicit HW partition unless the user explicitly requests one, i.e. by
requesting device "mmc 0.0" rather than just "mmc 0". I think it makes
more sense if the default is to select HW partition 0 (main data area)
if the user didn't request a specific partition. Otherwise, the following
happens, which feels wrong:

Select HW partition 1 (boot0):
mmc dev 0 1

Attempts to access SW partition 1 on HW partition 1 (boot0), rather than
SW partition 1 on HW partition 0 (main data area):
ls mmc 0:1 /

With this patch, the second command above re-selects the main data area.

Many device types don't support HW partitions at all, so if HW partition
0 is selected (either explicitly or as the default) and there's no
select_hwpart function, we simply skip attempting to select a HW
partition.

Some MMC devices (i.e. SD cards) don't support HW partitions. However,
this patch still works, since mmc_start_init() sets the current
partition number to 0, and mmc_select_hwpart() succeeds if the requested
partition is already selected.

Signed-off-by: Stephen Warren 
Acked-by: Pantelis Antoniou

mmc: provide a select_hwpart implementation for get_device()

2014-05-23T09:11:44+00:00

This enables specifying which eMMC HW partition to target for any U-Boot
command that uses the generic get_partition() function to parse its
command-line arguments.

Acked-by: Pantelis Antoniou 
Signed-off-by: Stephen Warren