u-boot.git/include/bootstage.h, branch v2018.01

bootstage: Drop unused options

2017-09-16T06:57:44+00:00

The CONFIG_BOOTSTAGE_USER_COUNT option is no-longer needed since we can now
support any number of user IDs. Also BOOTSTAGE_ID_COUNT is not needed now.

Drop these unused options.

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

bootstage: Record time taken to set up the live device tree

2017-06-05T18:13:09+00:00

This time is interesting as a comparision with the flat device tree time.
Add it to the record.

Signed-off-by: Simon Glass

bootstage: Support SPL

2017-06-05T18:13:08+00:00

At present bootstage only supports U-Boot proper. But SPL can also consume
boot time so it is useful to have the record start there.

Add bootstage support to SPL. Also support stashing the timing information
when SPL finishes so that it can be picked up and reported by U-Boot
proper. This provides a full boot time record, excluding only the time
taken by the boot ROM.

Signed-off-by: Simon Glass

bootstage: Adjust to use const * where possible

2017-06-05T18:13:08+00:00

There are a few places that should use const *, such as
bootstage_unstash(). Update these to make it clearer when parameters are
changed.

Signed-off-by: Simon Glass

bootstage: Tidy up error return values

2017-06-05T18:13:08+00:00

We should return a proper error number instead of just -1. This helps the
caller to determine what when wrong. Update a few functions to fix this.

Signed-off-by: Simon Glass

bootstage: Record the time taken to set up driver model

2017-06-05T18:13:07+00:00

Driver model is set up ones before relocation and once after. Record the
time taken in each case.

Signed-off-by: Simon Glass

bootstage: Support relocating boostage data

2017-06-05T18:13:06+00:00

Some boards cannot access pre-relocation data after relocation. Reserve
space for this and copy it during preparation for relocation.

Signed-off-by: Simon Glass

bootstage: Fix up code style and comments

2017-06-05T18:13:05+00:00

There are several code style and comment nits. Fix them and also remove
the comment about passing bootstage to the kernel being TBD. This is
already supported.

Signed-off-by: Simon Glass

bootstage: Convert to use malloc()

2017-06-05T18:13:04+00:00

At present bootstage uses the data section of the image to store its
information. There are a few problems with this:

- It does not work on all boards (e.g. those which run from flash before
relocation)
- Allocated strings still point back to the pre-relocation data after
relocation

Now that U-Boot has a pre-relocation malloc() we can use this instead,
with a pointer to the data in global_data. Update bootstage to do this and
set up an init routine to allocate the memory.

Now that we have a real init function, we can drop the fake 'reset' record
and add a normal one instead.

Note that part of the problem with allocated strings remains. They are
reallocated but this will only work where pre-relocation memory is
accessible after relocation.

Signed-off-by: Simon Glass

bootstage: Require timer_get_boot_us() to be defined

2017-06-05T18:13:04+00:00

At present we provide a default version of this function for use by
bootstage. However it uses the system timer and therefore likely requires
driver model. This makes it impossible to time driver-model init.

Drop the function and require boards to provide their own. Add a sandbox
version also. There is a default implememtation in lib/time.c for boards
which use CONFIG_SYS_TIMER_COUNTER.

Signed-off-by: Simon Glass