07 Feb, 2019
1 commit
-
Add hweight*() macros required for moving to new SF layer
Signed-off-by: Vignesh R
Reviewed-by: Jagan Teki
18 Nov, 2018
1 commit
-
Introduce a new Makefile variable for passing LDFLAGS to standalone
programs. Currently the variable CONFIG_STANDALONE_LOAD_ADDR is
misued on some archs to pass a specific linker script.Signed-off-by: Daniel Schwierzeck
Reviewed-by: Tom Rini
Reviewed-by: Rick Chen
15 Sep, 2018
9 commits
-
Replace those two functions with generic ones by defining the
timer macros in include/config/*.h .Signed-off-by: Marek Vasut
-
The code uses all in all three TMU registers, drop the massive
register layout structures and just define the required timer
registers and use them throughout the code.Signed-off-by: Marek Vasut
-
The header contains only the TMU register layout, just inline it
into the TMU timer implementation and drop the header completely.Signed-off-by: Marek Vasut
-
The R-Car Gen2 feeds the TMU with CONFIG_SYS_CLK_FREQ / 2,
while the old SH parts use CONFIG_SYS_CLK_FREQ directly.
Just put this into the TMU implementation and drop the
CONFIG_SH_TMU_CLK_FREQ config option.Signed-off-by: Marek Vasut
-
This function just returns CONFIG_SH_TMU_CLK_FREQ, use the constant
directly instead.Signed-off-by: Marek Vasut
-
These functions are always called for timer = 0, so drop the
timer check. Since these functions are called from one place
only and they are reduced to one line of code, just inline
them.Signed-off-by: Marek Vasut
-
The tmu_bit value evaluates to (ffs(4) >> 1) - 1 = (3 >> 1) - 1 = 0.
Just drop the tmu_bit completely as well as CONFIG_SYS_TMU_CLK_DIV.Signed-off-by: Marek Vasut
-
This constant is always 4 , for all boards that exist. Define it
once in arch/sh/lib/time.c and remove it from the configs.Signed-off-by: Marek Vasut
-
Drop the macro as it is never used and it collides with sh_eth.h macros.
Signed-off-by: Marek Vasut
Cc: Nobuhiro Iwamatsu
11 Sep, 2018
1 commit
-
All architectures have the same definition for s8/16/32/64
and u8/16/32/64.Factor out the duplicated code into .
BTW, Linux unified the kernel space definition into int-ll64.h
a few years ago as you see in Linux commit 0c79a8e29b5f
("asm/types.h: Remove include/asm-generic/int-l64.h").Signed-off-by: Masahiro Yamada
07 May, 2018
1 commit
-
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
23 Feb, 2018
1 commit
-
With modern GCC, we get warnings such as:
cmd/jffs2.c: In function 'mtdparts_init':
arch/sh/include/asm/string.h:110:38:
warning: array subscript is above array bounds [-Warray-bounds]
: "0" (__cs), "1" (__ct), "r" (__cs+__n)
~~~~^~~~This results in a small size reduction as well.
Cc: Nobuhiro Iwamatsu
Signed-off-by: Tom Rini
22 Feb, 2018
1 commit
-
Based on reading over the GCC manual, passing both -m2a and -m2a-nofpu
are redundant, as -m2a-nofpu will provide functional code for both. As
-m2a-nofpu functions with more toolchains and does what is expected,
switch.Cc: Nobuhiro Iwamatsu
Signed-off-by: Tom Rini
03 Oct, 2017
1 commit
-
Convert the sh architecture to make use of the new asm-generic/io.h to
provide address mapping functions. As the generic implementations are
suitable for sh this is primarily a matter of moving code.Feedback from architecture maintainers is welcome.
Signed-off-by: Paul Burton
Cc: Nobuhiro Iwamatsu
27 Aug, 2017
1 commit
-
While it is true that we no longer have 'ppcenv' and similar sections,
including env/embedded.o at all results in the text/etc sections being
available for the rest of the link. This in turn is required for the
setup used on ms7722se. This also, likely, needs further fine-tuning.Fixes: f40ad66fa066 ("arch/sh: don't bring common/env_embedded.o into the link")
Signed-off-by: Tom Rini
26 Aug, 2017
2 commits
-
The linker script for SuperH brings the .ppcenv and .ppcenvr section
of common/env_embedded.o into the .text section. However, the .ppcenv
section is only ever filled in by env_embedded.o when
CONFIG_SYS_USE_PPCENV is defined, but no platforms in mainline U-Boot
use this.In addition, common/env_embedded.o is not always built (when you use
CONFIG_ENV_IS_NOWHERE for example), which causes the following build
failure:Fixes:
LD u-boot
/home/thomas/sh4aeb-linux-musl/bin/sh4aeb-linux-ld.bfd: cannot find common/env_embedded.oWe fix this by no longer adding the .ppcenv and .ppcenvr sections from
common/env_embedded.o into the .text section.Signed-off-by: Thomas Petazzoni
Signed-off-by: Nobuhiro Iwamatsu -
The SuperH architecture allows to be run in either little or big
endian mode. Some SuperH SoCs get the little vs. big endian decision
through mode pins sampled at reset, so if big endian has been choosen
by HW designers, it cannot be easily changed.Therefore, it makes sense to allow building U-Boot for SuperH in big
endian mode. To allow this, the only change needed is to adjust the
OUTPUT_FORMAT() in the linker script.Signed-off-by: Thomas Petazzoni
16 Aug, 2017
2 commits
-
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.Suggested-by: Wolfgang Denk
Signed-off-by: Simon Glass -
At present we support multiple environment drivers but there is not way to
select between them at run time. Also settings related to the position and
size of the environment area are global (i.e. apply to all locations).Until these limitations are removed we cannot really support more than one
environment location. Adjust the location to be a choice so that only one
can be selected. By default the environment is 'nowhere', meaning that the
environment exists only in memory and cannot be saved.Also expand the help for the 'nowhere' option and move it to the top since
it is the default.Signed-off-by: Simon Glass
[trini: Move all of the imply logic to default X if Y so it works again]
Signed-off-by: Tom Rini
15 Aug, 2017
1 commit
-
About a quarter of the files in common/ relate to the environment. It
seems better to put these into their own subdirectory and remove the
prefix.Signed-off-by: Simon Glass
Reviewed-by: Tom Rini
12 Aug, 2017
1 commit
-
This converts the following to Kconfig:
CONFIG_CMD_SH_ZIMAGEBOOTSigned-off-by: Simon Glass
Reviewed-by: Bin Meng
Reviewed-by: Philipp Tomsich
26 Jul, 2017
1 commit
-
This converts the following to Kconfig:
CONFIG_ENV_IS_IN_FLASHSigned-off-by: Simon Glass
03 Dec, 2016
16 commits
-
Finally add fpic compilation option to produce relocatable code.
Note that this requires to define CONFIG_NEEDS_MANUAL_RELOC for all
board files, also relocation support still has some limitations
(e.g. a developer should care not to overwrite the executing code or
memset() with zeroes not yet relocated data on malloc init etc.),
which may be fixed while switching to PIE.Due to short investigation the architecture code is not ready for PIE
linking, this will require some manipulations with .dyn* sections.Signed-off-by: Vladimir Zapolskiy
-
It is easy to note that SH2/SH3/SH4 start.S code is practically
the same with a minor difference for SH2 where a short data header is
present. To avoid unwanted code duplication and to automatically
convert SH2 and SH3 platforms to generic board support move fixed SH4
start.S into arch/sh/lib/start.S and share it among all platforms.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Like on ARM platform keep the first code relocation from a U-boot
image storage to RAM at CONFIG_SYS_TEXT_BASE, then pass execution to a
generic board_init_f() with empty GD flags. If CONFIG_SYS_TEXT_BASE is
equal to a calculated by board_init_f() relocation address there will
be no more code and data copy, however it's worth to mention that the
first copy happens even if $pc on _start is the same as
CONFIG_SYS_TEXT_BASE, on practice this works without a problem.Also note that _sh_start is renamed back to _start to correct
gd->mon_len calculation by setup_mon_len(), the opposite rename was
done in pre-generic board commit 2024b968ee9 ("sh: Fix build in start.S").Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Commits b61e90e6fd83 ("sh: Drop the arch-specific board init") and
f41e6088eb1a ("sh: Fix build errors for generic board") left code and
data relocation done in start.S, however further actual U-boot
configuration is not started anymore. Practically SH boards with the
code relocated into the expected position by start.S still can be
booted, so the change adds this option and provides an option how to
relocate code for board_init_r() execution.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Generic board support assumes a different method of specifying
DRAM size on board, also it can be shared among all boards, notably
only sh7763rdp board has a custom legacy dram_init(), however
the difference is only in printing some additional information,
this feature can be removed.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
At the moment in runtime all defined sections are copied into or
created in RAM, specify this explicitly to assert potential out of RAM
placements of the sections.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
No functional change, concentrate linker script commands in one
place for convenience. Entry point is set to CONFIG_SYS_TEXT_BASE by
default on build, so this option can be omitted from being added to
the linker script.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Reference lowlevel_init of all supported SH2A/SH3/SH4/SH4A boards
from a shared linker script, the lowlevel_init function will be called
by a relative address.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Three supported SH4/SH4A boards with the bootloader image stored on
SPI flash have own flavour of a linker script, in turn they are equal
among each other. The only difference is that the text from
lowlevel_init.o is placed right after start.o, which makes sense.Note that .bss section is not marked as NOLOAD, because for about
10 years this is a default option of a GNU linker, either the
attribute is found or not the resulting image file is the same.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
Defined __io is no-op for the SH architecture and it can be removed
from board files without any functional change.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
No functional change, moving cache manipulation functions into cache.c
allows to collect all of them in a single location and as a pleasant
side effect cache_control() function can be unexported now.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
cache_wback_all() is a local function and it is called from
cache_control() only, which is in turn jumps to P2 area.The change fixes an issue when cache_wback_all() returns from P2 to
P1, however cache_control() continues to manipulate with CCR
register, according to the User's Manual this is restricted.Signed-off-by: Vladimir Zapolskiy
-
Both jump_to_P2() and back_to_P1() functions are found in asm/system.h
header file and functionally they are the same, don't redefine them.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
The change is similar to commit 994b56616bae ("sh: delete an unused
source file") for SH2, however here the removed cache.c file was
built and included into an image as a dead code.If it is needed in future the contents can be reused from a similar
arch/sh/cpu/sh4/cache.c file, which is in turn will be moved to
a shared among all core flavours location at arch/sh/lib/cache.c.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
In common usecases flush_cache() assumes both cache invalidation and
write-back to memory, instead of doing cache invalidation only with
the wrapped 'ocbi' instruction pin flush_cache() to cache invalidation
with memory write-back done by 'ocbp'.Signed-off-by: Vladimir Zapolskiy
Reviewed-by: Simon Glass -
In common usecases flush_cache() assumes both cache invalidation and
write-back to memory, thus in flush_dcache_range() implementation
change SH4 cache write-back only instruction 'ocbwb' with cache purge
instruction 'ocbp', according to the User's Manual there should be no
performance penalty for that.Note that under circumstances only cache invalidation is expected from
flush_cache() call, in these occasional cases the current version of
flush_cache() works, which is a wrapper over invalidate_dcache_range()
at the moment, this will be fixed in the following change.Signed-off-by: Vladimir Zapolskiy
