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Introduce a simple clock driver for Exynos7870's CMU blocks, more
specifically, CMU_MIF, CMU_FSYS, and CMU_PERI banks. This should be
enough to serve U-Boot's minimal requirements.
Signed-off-by: Kaustabh Chakraborty <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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Use PHASE_ as the symbol to select a particular XPL build. This means
that SPL_TPL_ is no-longer set.
Update the comment in bootstage to refer to this symbol, instead of
SPL_
Signed-off-by: Simon Glass <[email protected]>
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Heavily influenced by its Linux kernel counterpart. It's implemented on
top of recently added Samsung CCF clock framework API. For now only UART
leaf clocks are implemented, along with all preceding clocks in CMU_TOP
and CMU_PERI. The UART baud clock is required in the serial driver, to
get its rate for the consequent baud rate calculation.
Signed-off-by: Sam Protsenko <[email protected]>
Reviewed-by: Chanho Park <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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Heavily based on Linux kernel Samsung clock framework, with some changes
to accommodate the differences in U-Boot CCF implementation. It's also
quite minimal as compared to the Linux version.
Signed-off-by: Sam Protsenko <[email protected]>
Reviewed-by: Chanho Park <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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PLL utilities code is only used by clk-exynos7420 driver at the moment.
Move it into clk-exynos7420 to make clk-pll.c file available for CCF PLL
clocks implementation, which is coming in the next patches.
Signed-off-by: Sam Protsenko <[email protected]>
Reviewed-by: Chanho Park <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <[email protected]>
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Add a clock driver for Exynos7420 SoC. There are about 25 clock controller
blocks in Exynos7420 out of which support for topc, top0 and peric1 blocks
are added in this initial version of the driver.
Cc: Minkyu Kang <[email protected]>
Cc: Simon Glass <[email protected]>
Signed-off-by: Thomas Abraham <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Minkyu Kang <[email protected]>
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