u-boot.git/drivers/timer, branch v2020.04-rc4

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass

dm: core: Require users of devres to include the header

2020-02-06T02:33:46+00:00

At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

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

timer: Add driver for Nomadik Multi Timer Unit (MTU)

2020-01-22T22:47:56+00:00

The Nomadik Multi Timer Unit (MTU) provides 4 decrementing
free-running timers. It is used in ST-Ericsson Ux500 SoCs.

The driver uses the first timer to implement UCLASS_TIMER.

Signed-off-by: Stephan Gerhold 
Reviewed-by: Linus Walleij

x86: timer: Reduce timer code size in TPL on Intel CPUs

2019-12-15T03:44:10+00:00

Most of the timer-calibration methods are not needed on recent Intel CPUs
and just increase code size. Add an option to use the known-good way to
get the clock frequency in TPL. Size reduction is about 700 bytes.

Note that version 1 of this commit caused bootstage to crash since the CPU
was not identified. This is corrected by changes previously applied to
make sure that the CPU is identified before spl_init() is called, such as

   39146a2e0b x86: Move CPU init to before spl_init()

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

x86: timer: use a timer base of 0

2019-12-15T03:44:09+00:00

On x86 platforms the timer is reset to 0 when the SoC is reset. Having
this as the timer base is useful since it provides an indication of how
long it takes before U-Boot is running.

When U-Boot sets the timer base to something else, time is lost and we
no-longer have an accurate account of the time since reset. This
particularly affects bootstage.

Change the default to not read the timer base, leaving it at 0. Add an
option for when U-Boot is the secondary bootloader.

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

common: Move interrupt functions into a new header

2019-12-02T23:25:00+00:00

These functions do not use driver model but are fairly widely used in
U-Boot. But it is not clear that they will use driver model anytime soon,
so we don't want to label them as 'legacy'.

Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it
is widely used in U-Boot already.

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

common: Move get_ticks() function out of common.h

2019-12-02T23:23:13+00:00

This function belongs in time.h so move it over and add a comment.

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

common: Move wait_ticks functions out of common.h

2019-12-02T23:23:11+00:00

This function belongs in time.h so move it over and add a comment.

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

common: Drop global inclusion of status_led.h

2019-12-02T23:23:06+00:00

This is only used by a few files so it should not be in the common header.
Move it out.

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

Drop CONFIG_SHOW_ACTIVITY

2019-12-02T23:23:06+00:00

This feature is not enabled by any board. Drop it.

Signed-off-by: Simon Glass