u-boot.git/common, branch v2014.07

env_fat: use get_device_and_partition() during env save and load

2014-07-07T23:43:01+00:00

Use get_device_and_partition() is better since:
1. It will call the device initialize function internally. So we can
remove the mmc intialization code to save many lines.
2. It is used by fatls/fatload/fatwrite. So saveenv & load env should
use it too.
3. It can parse the "D:P", "D", "D:", "D:auto" string to get correct
device and partition information by run-time.

Also we remove the FAT_ENV_DEVICE and FAT_ENV_PART. We use a string:
FAT_ENV_DEVICE_AND_PART.
For at91sam9m10g45ek, it is "0". That means use device 0 and if:
a)device 0 has no partition table, use the whole device as a FAT file
system.
b)device 0 has partittion table, use the partition #1.

Refer to the commit: 10a37fd7a4 for details of device & partition string.

Signed-off-by: Josh Wu 
Reviewed-by: Stephen Warren

dfu: free entities when parsing fails

2014-06-25T20:49:43+00:00

When dfu_init_env_entities() fails part-way through, some entities may
have been added to dfu_list. These are only removed by dfu_free_entities().
If that function isn't called, those stale entities will still exist the
next time dfu_init_env_entities() is called, leading to confusion. Fix
do_dfu() to ensure that dfu_free_entities() is always called, to avoid
this confusion.

Signed-off-by: Stephen Warren 
Acked-by: Lukasz Majewski 
Tested-by: Lukasz Majewski

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

Add an I/O tracing feature

2014-06-20T17:54:29+00:00

When debugging drivers it is useful to see what I/O accesses were done
and in what order.

Even if the individual accesses are of little interest it can be useful to
verify that the access pattern is consistent each time an operation is
performed. In this case a checksum can be used to characterise the operation
of a driver. The checksum can be compared across different runs of the
operation to verify that the driver is working properly.

In particular, when performing major refactoring of the driver, where the
access pattern should not change, the checksum provides assurance that the
refactoring work has not broken the driver.

Add an I/O tracing feature and associated commands to provide this facility.
It works by sneaking into the io.h heder for an architecture and redirecting
I/O accesses through its tracing mechanism.

For now no commands are provided to examine the trace buffer. The format is
fairly simple, so 'md' is a reasonable substitute.

Note: The checksum feature is only useful for I/O regions where the contents
do not change outside of software control. Where this is not suitable you can
fall back to manually comparing the addresses. It might be useful to enhance
tracing to only checksum the accesses and not the data read/written.

Signed-off-by: Simon Glass

cosmetic: autoboot: update old style GNU struct init

2014-06-19T15:19:07+00:00

Signed-off-by: Jeroen Hofstee

cmd_md5sum.c: remove dead code / fix warning

2014-06-19T15:19:07+00:00

commit ecd729500 "Add parameter to md5sum to save the md5 sum"
adds support to build a string to be saved in the env and tries
to zero end it with str_ptr = '\0'; This does actually set the
pointer to the end of the buffer itself to zero. Since the
string was already zero terminated by the sprintf before it,
just remove the line, preventing a clang warning.

cc: Joe Hershberger 
Signed-off-by: Jeroen Hofstee

includes: move openssl headers to include/u-boot

2014-06-19T15:19:04+00:00

commit 18b06652cd "tools: include u-boot version of sha256.h"
unconditionally forced the sha256.h from u-boot to be used
for tools instead of the host version. This is fragile though
as it will also include the host version. Therefore move it
to include/u-boot to join u-boot/md5.h etc which were renamed
for the same reason.

cc: Simon Glass 
Signed-off-by: Jeroen Hofstee

Enhance fit_check_sign to check all images

2014-06-19T15:19:02+00:00

At present this tool only checks the configuration signing. Have it also
look at each of the images in the configuration and confirm that they
verify.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher  (v1)

bootm: Move decompression code into its own function

2014-06-19T15:19:02+00:00

This makes it possible to decompress an image without it being a kernel
and without intending to boot it (as it needed for host tools, for example).

Signed-off-by: Simon Glass

Allow compiling common/bootm.c on with HOSTCC

2014-06-19T15:19:01+00:00

We want to use some of the functionality in this file, so make it
build on the host.

Signed-off-by: Simon Glass