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At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <[email protected]>
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This header was missing a couple of include dependencies when included on its
own.
Signed-off-by: Sean Anderson <[email protected]>
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Introduce io_gate_val for sandbox clk gate test usage
Signed-off-by: Peng Fan <[email protected]>
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Import clk composite clk support from Linux Kernel 5.1-rc5
Signed-off-by: Peng Fan <[email protected]>
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Because clk-provider use clk_ops, so let's include clk-uclass.h
Signed-off-by: Peng Fan <[email protected]>
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Export the structure for others to use.
Signed-off-by: Peng Fan <[email protected]>
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Import clk-gate support from Linux Kernel 5.1-rc5
Signed-off-by: Peng Fan <[email protected]>
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Export mux/divider ops and divider_recalc_rate for composite usage
Signed-off-by: Peng Fan <[email protected]>
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Add set parent support for clk mux
Signed-off-by: Peng Fan <[email protected]>
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The generic mux clock code for CCF requires reading the clock multiplexer
value from HW registers. As sandbox by design has readl() as no-op it was
necessary to provide this value in the other way.
The new field in the mux structure (accessible only when sandbox is run)
has been introduced for this purpose.
Signed-off-by: Lukasz Majewski <[email protected]>
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The generic divider clock code for CCF requires reading the divider value
from HW registers. As sandbox by design has readl() as no-op it was
necessary to provide this value in the other way.
The new field in the divider structure (accessible only when sandbox is
run) has been introduced for this purpose.
Signed-off-by: Lukasz Majewski <[email protected]>
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This patch brings the files from Linux kernel (linux-stable/linux-5.1.y
SHA1: 5752b50477da)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 the
device tree.
One needs to pay attention to the comments indicating necessary for U-Boot's
driver model changes.
If needed, the code can be extended to support the "set" part of the clock
management.
Signed-off-by: Lukasz Majewski <[email protected]>
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This file now stores the dev_get_clk_ptr() wrapper on the dev_get_uclass_priv()
function.
Signed-off-by: Lukasz Majewski <[email protected]>
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