u-boot.git/include/kendryte, branch v2020.10

clk: kendryte/pll.h: do not redefine nop()

2020-08-25T01:33:35+00:00

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 
Reviewed-by: Sean Anderson 
Reviewed-by: Bin Meng

clk: Drop dm.h header file in clk-provider.h

2020-08-04T02:19:54+00:00

This header file should not be included in other header files. Remove it
and use a forward declaration and un-inlining of dev_get_clk_ptr()
instead.

Fix up the kendryte header files to avoid build errors.

Signed-off-by: Simon Glass 
Reviewed-by: Sean Anderson

clk: Add K210 clock support

2020-07-01T07:01:21+00:00

Due to the large number of clocks, I decided to use the CCF. The overall
structure is modeled after the imx code. Clocks parameters are stored in
several arrays, and are then instantiated at run-time. There are some
translation macros (FOOIFY()) which allow for more dense packing.

Signed-off-by: Sean Anderson 
CC: Lukasz Majewski

clk: Add a bypass clock for K210

2020-07-01T07:01:21+00:00

This is a small driver to do a software bypass of a clock if hardware
bypass is not working. I have tried to write this in a generic fashion, so
that it could be potentially broken out of the kendryte code at some future
date. For the K210, it is used to have aclk bypass pll0 and use in0 instead
so that the CPU keeps on working.

Signed-off-by: Sean Anderson 
CC: Lukasz Majewski

clk: Add K210 pll support

2020-07-01T07:01:21+00:00

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 
CC: Lukasz Majewski