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Mainline Linux tree for various devices, only for fun :)
a048fe996b
The pllv4 supports fractional-N function, the formula is:
PLL output freq = input * (mult + num/denom),
This patch adds fractional-N function support, including
clock round rate, calculate rate and set rate, with this
patch, the clock rate of APLL in clock tree is more accurate
than before:
Without fraction:
apll_pre_sel 1 1 1 24000000 0 0 50000
apll_pre_div 1 1 2 24000000 0 0 50000
apll 1 1 2 528000000 0 0 50000
apll_pfd3 0 0 0 792000000 0 0 50000
apll_pfd2 0 0 0 339428571 0 0 50000
apll_pfd1 0 0 0 352000000 0 0 50000
usdhc0 0 0 0 352000000 0 0 50000
apll_pfd0 1 1 1 352000000 0 0 50000
With fraction:
apll_pre_sel 1 1 1 24000000 0 0 50000
apll_pre_div 1 1 2 24000000 0 0 50000
apll 1 1 2 529200000 0 0 50000
apll_pfd3 0 0 0 793800000 0 0 50000
apll_pfd2 0 0 0 340200000 0 0 50000
apll_pfd1 0 0 0 352800000 0 0 50000
usdhc0 0 0 0 352800000 0 0 50000
apll_pfd0 1 1 1 352800000 0 0 50000
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.