CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC is not always the same as CPU frequency.
Referring to the `/cpus/cpu@0,clock-frequency` in DTS to determine
the CPU frequency.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@fujitsu.com>
Remove all init functions that do nothing, and provide a `NULL` to
*DEVICE*DEFINE* macros.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
The timer_ids contain timers that belong to any bus.
So, It should recognize with entire id, not only the CLOCK_ID_BIT part.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
DT_COMPAT_GET_ANY_STATUS_OKAY is not suited for the node's existing check.
(This macro returns the stem of the DTS macro name,
the stem part is not a defined symbol.)
Instead, it should use the DT_HAS_COMPAT_STATUS_OKAY macro.
Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
The sys* ops like sys_clear_bit are indirectly included via arch CPU
header. Other stuff like find_msb_set end up included via this header as
well.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This patch adds a clock control driver for GD32 platforms. It is
important to note that the driver is only able to handle peripheral
clocks, but not "system clocks" (e.g. PLL settings, SYS_CK, etc.). On
some similar platforms (STM32) this task is embedded in the same clock
driver, performed at init time but with no options to do any
manipulation at runtime via the API calls. The clock control API as-is
is really orthogonal to "system clocks", and it is arguably a bad idea
to embed system clock init code in a clock control driver. It can be
done at SoC level still using Devicetree as a source of hardware
description/initial configuration.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
