[U-Boot] [PATCH v4 12/13] clk: Port Linux common clock framework

[sbabic at denx.de]

> This commit brings the files from Linux kernel to provide clocks support
> as it is used on the Linux kernel with common clock framework [CCF] setup.
> The directory structure has been preserved. The ported code only supports
> reading information from PLL, MUX, Divider, etc and enabling/disabling
> the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic
> to the alias numbering as the information about the clock is read from
> device tree.
> One needs to pay attention to the comments indicating necessary for U-boot's
> DM changes.
> If needed the code can be extended to support the "set" part of the clock
> management.
> Signed-off-by: Lukasz Majewski <lukma at denx.de>

Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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