Huang Qi
a48936788a
Add sysctl driver for K210 SoC providing clock and reset control: - Clock enable/disable with two-stage APB/peripheral enable pattern - Peripheral reset control with proper timing - Clock frequency query for PLL, CPU, APB buses, and peripherals - PLL frequency calculation and CPU frequency configuration The sysctl driver is built unconditionally for K210 boards as it provides essential clock and reset control functionality. Add Kconfig option: - K210_CPU_FREQ: Target CPU frequency in Hz (default 400MHz) Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
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