[components][clock_time] Refactor time subsystem around clock_time (#11111)

* [components][clock_time] Refactor time subsystem around clock_time

Introduce the clock_time core with clock source/event separation, high-resolution scheduling, and boot-time helpers, plus clock_timer adapters for timer peripherals.

Remove legacy ktime/cputime/hwtimer implementations and migrate arch and BSP time paths to the new subsystem while keeping POSIX time integration functional.

Update drivers, Kconfig/SConscript wiring, documentation, and tests; add clock_time overview docs and align naming to clock_boottime/clock_hrtimer/clock_timer.

* [components][clock_time] Use BSP-provided clock timer frequency on riscv64

* [risc-v] Use runtime clock timer frequency for tick and delays

* [bsp] Add clock timer frequency hooks for riscv64 boards

* [bsp] Update Renesas RA driver doc clock_timer link

* [bsp] Sync zynqmp-r5-axu4ev rtconfig after config refresh

* [bsp][rk3500] Update rk3500 clock configuration

* [bsp][hpmicro] Add rt_hw_us_delay hook and update board delays

* [bsp][stm32l496-st-nucleo] enable clock_time for hwtimer sample in ci

* [bsp][hpmicro] Fix rtconfig include scope for hpm6750evk

Move rtconfig.h include outside the ENET_MULTIPLE_PORT guard for hpm6750evk and hpm6750evk2 so configuration macros are available regardless of ENET settings.

* [bsp][raspi3] select clock time for systimer

* [bsp][hpm5300evk] Trim trailing blank line

* [bsp][hpm5301evklite] Trim trailing blank line

* [bsp][hpm5e00evk] Trim trailing blank line

* [bsp][hpm6200evk] Trim trailing blank line

* [bsp][hpm6300evk] Trim trailing blank line

* [bsp][hpm6750evk] Trim trailing blank line

* [bsp][hpm6750evk2] Trim trailing blank line

* [bsp][hpm6750evkmini] Trim trailing blank line

* [bsp][hpm6800evk] Trim trailing blank line

* [bsp][hpm6e00evk] Trim trailing blank line

* [bsp][nxp] switch lpc178x to gcc and remove mcx timer source

* [bsp][stm32] fix the CONFIG_RT_USING_CLOCK_TIME issue.

* [docs][clock_time] add clock time documentation

* [docs][clock_time] Update clock time subsystem documentation

- Update device driver index to use correct page reference
- Clarify upper layer responsibilities in architecture overview
- Update README to describe POSIX/libc, Soft RTC, and device driver usage
- Refine architecture diagram with improved layout and color scheme
- Remove obsolete clock_timer.md file

* [kernel][utest] Trim trailing space

* [clock_time] Fix hrtimer wrap handling

* [clock_time] fix the static rt_inline issue

* [clock_time] fix the rt_clock_hrtimer_control result issue

1 files changed, 42 insertions, 0 deletions

diff --git a/components/drivers/clock_time/SConscript b/components/drivers/clock_time/SConscript
new file mode 100644
index 0000000000..111449276a
--- /dev/null
+++ b/components/drivers/clock_time/SConscript
@@ -0,0 +1,42 @@
+import os
+from building import *
+
+Import('rtconfig')
+
+cwd = GetCurrentDir()
+
+group = []
+build_clock_time = GetDepend('RT_USING_CLOCK_TIME')
+
+if not build_clock_time:
+    Return('group')
+
+src = [
+    'clock_time_core.c',
+    'clock_hrtimer.c',
+    'clock_boottime.c',
+    'clock_timer.c',
+]
+if GetDepend('RT_CLOCK_TIME_ARM_ARCH'):
+    src += ['clock_time_arm_arch.c']
+
+arch_dir = os.path.join(cwd, 'arch')
+if os.path.isdir(arch_dir):
+    arch_list = os.listdir(arch_dir)
+    if rtconfig.ARCH in arch_list:
+        cpu_dir = os.path.join(arch_dir, rtconfig.ARCH, rtconfig.CPU)
+        if os.path.exists(cpu_dir):
+            src += Glob("arch/%s/%s/*.c" % (rtconfig.ARCH, rtconfig.CPU))
+        else:
+            src += Glob("arch/%s/*.c" % rtconfig.ARCH)
+
+CPPPATH = [cwd, os.path.join(cwd, '..', 'include')]
+LOCAL_CCFLAGS = ''
+if rtconfig.PLATFORM in ['gcc', 'armclang']:
+    LOCAL_CCFLAGS += ' -std=gnu99'
+elif rtconfig.PLATFORM in ['armcc']:
+    LOCAL_CCFLAGS += ' --c99 --gnu'
+
+group = DefineGroup('DeviceDrivers', src, depend=[''], CPPPATH=CPPPATH, LOCAL_CCFLAGS=LOCAL_CCFLAGS)
+
+Return('group')