Re: [PATCH v3 00/13] Krait clocks + Krait CPUfreq

Pavel Machek
2015-04-02T06:18:32Z

On Fri 2015-03-20 23:45:19, Stephen Boyd wrote:
> These patches provide cpufreq scaling on devices with Krait CPUs.
> In Krait CPU designs there's one PLL and two muxes per CPU, allowing
> us to switch CPU frequencies independently.
>
> secondary
> +-----+ +
> | QSB |-------+------------|\
> +-----+ | | |-+
> | +-------|/ |
> | | + |
> +-----+ | | |
> | PLL |----+-------+ | primary
> +-----+ | | | +
> | | +-----|\ +------+
> +-------+ | | | \ | |
> | HFPLL |----------+-----------------| |-----| CPU0 |
> +-------+ | | | | | | |
> | | | +-----+ | / +------+
> | | +-| / 2 |---------|/
> | | +-----+ +
> | | secondary
> | | +
> | +------------|\
> | | |-+
> +---------------|/ | primary
> + | +
> +-----|\ +------+
> +-------+ | \ | |
> | HFPLL |----------------------------| |-----| CPU1 |
> +-------+ | | | | |
> | +-----+ | / +------+
> +-| / 2 |---------|/
> +-----+ +

And actually this picture should go to Documentation/ somewhere...

Pavel

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