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3 commits

Author SHA1 Message Date
Sean Anderson
f93ce98eb2 clk: k210: Remove k210_register_pll 
This simplifies the PLL creation process, since we don't have to pass all
the parameters individually.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
 2021-05-14 16:20:48 +08:00
Heinrich Schuchardt
183f1e2712 clk: kendryte/pll.h: do not redefine nop() 
The kendryte PLL code uses nop as barrier. The macro is not defined for
the sandbox on x86 but is defined on RISC-V.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
 2020-08-25 09:33:35 +08:00
Sean Anderson
019ef9a3f3 clk: Add K210 pll support 
This pll code is primarily based on the code from the kendryte standalone
sdk in lib/drivers/sysctl.c. k210_pll_calc_config is roughly analogous to
the algorithm used to set the pll frequency, but it has been completely
rewritten to be fixed-point based.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
CC: Lukasz Majewski <lukma@denx.de>
 2020-07-01 15:01:21 +08:00