u-boot.git/drivers/timer, branch v2024.07-rc2

treewide: Remove clk_free

2024-01-30T03:35:02+00:00

This function is a no-op. Remove it.

Signed-off-by: Sean Anderson 
Link: https://lore.kernel.org/r/20231216193843.2463779-3-seanga2@gmail.com

global: Restrict use of '#include '

2023-12-21T13:54:05+00:00

In general terms, we -include include/linux/kconfig.h and so normal
U-Boot code does not need to also #include it. However, for code which
is shared with userspace we may need to add it so that either our full
config is available or so that macros such as CONFIG_IS_ENABLED() can be
evaluated. In this case make sure that we guard these includes with a
test for USE_HOSTCC so that it clear as to why we're doing this.

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

timer: starfive: Add Starfive timer support

2023-12-18T03:08:54+00:00

Add timer driver in Starfive SoC. It is an timer that outside
of CPU core and inside Starfive SoC.

Signed-off-by: Kuan Lim Lee 
Signed-off-by: Wei Liang Lim 

Changes for v2:
- correct driver name, comment, variable
Reviewed-by: Leo Yu-Chi Liang

timer-uclass: Always use "clock-frequency" property as fallback

2023-11-29T14:32:15+00:00

Currently the "clock-frequency" DT property is only being considered as an
fallback if either there is no clock driver, the clock driver implements
the request-op correctly or there is no clock defined for the timer at all.

This patch makes "clock-frequency" also being picked as a fallback if
getting the clock-rate fails, since clk_get(_by_index) will return no
error, if a clock driver does not implement the request-op and does also
not support getting the rate of the clock in question.
timer_post_probe will take care if the property does not exist in the DT or
is defined as 0.

Signed-off-by: Alex Bee

riscv: andesv5: Prefer using the generic RISC-V timer driver in S-mode

2023-10-04T10:23:54+00:00

The Andes PLMT driver directly accesses the mtime MMIO region,
indicating its intended use in the M-mode boot stage. However,
since U-Boot proper (S-mode) also uses the PLMT driver, we need
to specifically mark the region as readable through PMPCFGx (or
S/U-mode read-only shared data region for Smepmp) in OpenSBI.

Granting permission for this case doesn't make sense. Instead,
we should use the generic RISC-V timer driver to read the mtime
through the TIME CSR. Therefore, we add the SPL_ANDES_PLMT_TIMER
config, which ensures that the PLMT driver is linked exclusively
against M-mode U-Boot or U-Boot SPL binaries.

Signed-off-by: Yu Chien Peter Lin 
Reviewed-by: Samuel Holland

timer: starfive: Add Starfive timer support

2023-10-04T09:59:31+00:00

Add timer driver in Starfive SoC. It is an timer that outside
of CPU core and inside Starfive SoC.

Signed-off-by: Kuan Lim Lee 
Reviewed-by: Wei Liang Lim 
Reviewed-by: Simon Glass

timer: riscv_aclint_timer: add timer_get_boot_us for BOOTSTAGE

2023-10-04T09:55:37+00:00

timer_get_boot_us function is required to record the boot stages as
us-based timestamp.
To get a micro-second time from a timer tick, this converts the
formula like below to avoid zero result of (tick / rate) part.

From: time(us) = (tick / rate) * 1000000
To  : time(us) = (tick * 1000) / (rate / 1000)

Signed-off-by: Chanho Park 
Reviewed-by: Leo Yu-Chi Liang

riscv: timer: add timer_get_boot_us for BOOTSTAGE

2023-10-04T09:55:20+00:00

timer_get_boot_us function is required to record the boot stages as
us-based timestamp.
To get a micro-second time from a timer tick, this converts the
formula like below to avoid zero result of (tick / rate) part.

From: time(us) = (tick / rate) * 1000000
To  : time(us) = (tick * 1000) / (rate / 1000)

Signed-off-by: Chanho Park 
Reviewed-by: Leo Yu-Chi Liang

Merge branch 'next'

2023-10-02T14:55:44+00:00

Signed-off-by: Tom Rini

timer: Remove unused NEEDS_MANUAL_RELOC code bits

2023-09-14T14:42:25+00:00

The last user of the NEEDS_MANUAL_RELOC has been removed in commit
26af162ac8f8 ("arch: m68k: Implement relocation")
Remove now unused NEEDS_MANUAL_RELOC code.

Signed-off-by: Marek Vasut