u-boot.git/arch/arc, branch v2022.04

dts: automatically build necessary .dtb files

2022-02-09T19:26:12+00:00

When building for a custom board, it is quite common to maintain a
private branch which include some defconfig and .dts files. But to
hook up those .dts files requires modifying a file "belonging" to
upstream U-Boot, the arch/*/dts/Makefile. Forward-porting that branch
to a newer upstream then often results in a conflict which, while it
is trivial to resolve by hand, makes it harder to have a CI do "try to
build our board against latest upstream".

The .config usually includes information on precisely what .dtb(s) are
needed, so to avoid having to modify the Makefile, simply add the
files in (SPL_)OF_LIST to dtb-y.

A technicality is that (SPL_)OF_LIST is not always defined, so rework
the Kconfig symbols so that (SPL_)OF_LIST is always defined (when
(SPL_)OF_CONTROL), but only prompted for in the cases which used to be
their "depends on".

nios2 and microblaze already have something like this in their
dts/Makefile, and the rationale in commit 41f59f68539 is similar to
the above. So this simply generalizes existing practice. Followup
patches could remove the logic in those two makefiles, just as there's
potential for moving some common boilerplate from all the
arch/*/dts/Makefile files to the new scripts/Makefile.dts.

Signed-off-by: Rasmus Villemoes 
Reviewed-by: Simon Glass

Finish conversion of CONFIG_SYS_CLK_FREQ to Kconfig

2021-12-27T21:20:18+00:00

In order to finish moving this symbol to Kconfig for all platforms, we
need to do a few more things.  First, for all platforms that define this
to a function, introduce CONFIG_DYNAMIC_SYS_CLK_FREQ, similar to
CONFIG_DYNAMIC_DDR_CLK_FREQ and populate clock_legacy.h.  This entails
also switching all users from CONFIG_SYS_CLK_FREQ to get_board_sys_clk()
and updating a few preprocessor tests.

With that done, all platforms that define a value here can be converted
to Kconfig, and a fall-back of zero is sufficiently safe to use (and
what is used today in cases where code may or may not have this
available).  Make sure that code which calls this function includes
 to get the prototype.

Signed-off-by: Tom Rini

image: Drop IMAGE_ENABLE_OF_LIBFDT

2021-10-08T19:53:26+00:00

Add a host Kconfig for OF_LIBFDT. With this we can use
CONFIG_IS_ENABLED(OF_LIBFDT) directly in the tools build, so drop the
unnecessary indirection.

Signed-off-by: Simon Glass 
Reviewed-by: Alexandru Gagniuc

WS cleanup: remove SPACE(s) followed by TAB

2021-09-30T13:08:16+00:00

Signed-off-by: Wolfgang Denk

lmb: Switch to generic arch_lmb_reserve_generic()

2021-09-23T18:15:32+00:00

Switch arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() to
arch_lmb_reserve_generic().

Reviewed-by: Tom Rini 
Signed-off-by: Marek Vasut 
Cc: Alexey Brodkin 
Cc: Angelo Dureghello 
Cc: Daniel Schwierzeck 
Cc: Eugeniy Paltsev 
Cc: Hai Pham 
Cc: Michal Simek 
Cc: Simon Goldschmidt 
Cc: Tom Rini 
Cc: Wolfgang Denk

lmb: Always compile arch_lmb_reserve() into U-Boot on arc

2021-09-23T18:15:32+00:00

The arch_lmb_reserve() is called by lib/lmb.c lmb_reserve_common() even
if CMD_BOOTM is not enabled. However, the arc variant of arch_lmb_reserve()
is only compiled in if CMD_BOOTM is enabled.

This currently does not trigger build error, because there is an empty
weak implementation of arch_lmb_reserve(), however that is not the
function that should be used on arc.

Fix this by moving the arch_lmb_reserve() implementation into common
code and always compile it in.

Signed-off-by: Marek Vasut 
Cc: Simon Glass 
Cc: Simon Goldschmidt 
Cc: Tom Rini

Kconfig: Remove all default n/no options

2021-08-31T21:47:49+00:00

default n/no doesn't need to be specified. It is default option anyway.

Signed-off-by: Michal Simek 
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini

Finish converting CONFIG_SYS_CACHELINE_SIZE to Kconfig

2021-08-31T21:47:49+00:00

We move the SYS_CACHE_SHIFT_N options from arch/arm/Kconfig to
arch/Kconfig, and introduce SYS_CACHE_SHIFT_4 to provide a size of 16.
Introduce select statements for other architectures based on current
usage.  For MIPS, we take the existing arch-specific symbol and migrate
to the generic symbol.  This lets us remove a little bit of otherwise
unused code.

Cc: Alexey Brodkin 
Cc: Anup Patel 
Cc: Atish Patra 
Cc: Bin Meng 
Cc: Leo 
Cc: Palmer Dabbelt 
Cc: Paul Walmsley 
Cc: Sean Anderson 
Cc: Simon Glass 
Signed-off-by: Tom Rini 
Acked-by: Sean Anderson 
Reviewed-by: Daniel Schwierzeck 
Reviewed-by: Rick Chen

global_data: Ensure we have when symbols are not in Kconfig yet

2021-06-23T12:45:03+00:00

All symbols that are defined in Kconfig will always be defined (or not)
prior to preprocessing due to the -include directive while building.
However, symbols which are not yet migrated will only be defined (or
not) once the board config.h is included, via .  While the end
goal must be to migrate all symbols, today we have cases where the size
of gd will get mismatched within the build, based on include order.
Mitigate this by making sure that any  that uses
symbols not in Kconfig does start with .  Remove this when not
needed.

Cc: Alexey Brodkin 
Cc: Eugeniy Paltsev 
Cc: Huan Wang 
Cc: Angelo Dureghello 
Cc: Rick Chen 
Signed-off-by: Tom Rini

lmb: move CONFIG_LMB in Kconfig

2021-04-22T18:09:45+00:00

Migrate CONFIG_LMB in Kconfig.

Signed-off-by: Patrick Delaunay