20 Feb, 2014
40 commits
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This file was only required for compilation of designware_i2c driver.
Since explicit inclusion of "hardware.h" is now removed from the driver
we may safely remove this empty header as well.Signed-off-by: Alexey Brodkin
Cc: Tom Rini
Cc: Heiko Schocher
Cc: Stefan Roese
Cc: Vipin Kumar
Cc: Armando Visconti -
As soon as all boards have their CONFIG_SYS_I2C_BASE defined in
configuration files instead of "asm/arch/hardware.h" it's safe to remove
the inclusion in question and make driver platform-independent.Cc: Tom Rini
Cc: Heiko Schocher
Cc: Stefan Roese
Cc: Vipin Kumar
Cc: Armando ViscontiSigned-off-by: Alexey Brodkin
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Having CONFIG_SYS_I2C_BASE requires DW I2C driver to explicitly include
which other platforms may not have at all.It's always good to have a driver platform-independent.
Signed-off-by: Alexey Brodkin
Cc: Tom Rini
Cc: Heiko Schocher
Cc: Stefan Roese
Cc: Vipin Kumar
Cc: Armando Visconti -
Adds support for set-speed on the OMAP24xx I2C Adapter.
Changes to omap24_i2c_write(...) for polling ARDY Bit from IRQ-Status.
Otherwise on a subsequent call the transfer of last byte from the
predecessor is aborted and therefore lost. For exmaple when
i2c_write(...) is followed by a i2c_setspeed(...) (which has to
deactivate and activate master for changing psc,...).Minor cosmetical changes.
Signed-off-by: Hannes Petermaier
Cc: Heiko Schocher -
Make sure the I2C write queue is empty before leaving the mxs_i2c_write().
If we start and I2C write and only wait for ACK, the MXS I2C IP block may
enter next operation while still processing the write aftermath internally.
This will in turn disrupt one or more subsequent transfer(s).A testcase for this issue is as such. This testcase is also interesting because
the first I2C_WRITE which becomes disruptive happens in the 'i2c read' command.
The 'i2c read' command first uses I2C_WRITE to send I2C address of the chip and
then uses I2C_READ to read data from the chip. After this command completes, the
'i2c probe' will use sequence of I2C_WRITE commands to probe the I2C bus. The
problem is that the first I2C_WRITE disrupted the I2C IP block operation and
this sideeffect propagates all the way to this next I2C_WRITE used by the 'i2c
probe' call. The result is the 'i2c probe' receives an ACK on I2C address 0x00,
even if this ACK was owned by the previous I2C_WRITE operation. Note that the
'i2c read' command must read from a valid I2C chip address.Wrong:
> i2c probe
Valid chip addresses: 50 51
> i2c read 0x50 0x0.2 0x10 0x42000000
> i2c probe
Valid chip addresses: 00 50 51With this patch
> i2c probe
Valid chip addresses: 50 51
> i2c read 0x50 0x0.2 0x10 0x42000000
> i2c probe
Valid chip addresses: 50 51Signed-off-by: Marek Vasut
Cc: Heiko Schocher
Cc: Fabio Estevam -
Enhance the DesignWare I2C driver to support address length more
than 1 byte. This enhancement is required as some I2C slave
device such as EEPROM chip might have 16 bit address byte.Signed-off-by: Chin Liang See
Acked-by: Alexey Brodkin
Cc: Tom Rini
cc: Armando Visconti
Cc: Stefan Roese
Cc: Albert ARIBAUD
Cc: Heiko Schocher -
add support for bootcounter on an i2c device. And add a
README for all bootcounter options.Signed-off-by: Heiko Schocher
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The ADI twi peripheral is not binding to Blackfin processor only.
Access i2c registers by standard io functions.
Fix coding style.Signed-off-by: Scott Jiang
Signed-off-by: Sonic Zhang -
The ADI twi peripheral is not binding to Blackfin processor only.
Change to a generic name.Signed-off-by: Sonic Zhang
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Signed-off-by: Sonic Zhang
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Signed-off-by: Sonic Zhang
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Initialize the second i2c controller.
Signed-off-by: Michael Burr
Signed-off-by: Michal Simek -
Fixed bug with alen == 0 in 'i2c_write', 'i2c_read'
Further minor corrections:
- Write 'address' register before 'data' register.
- Write 'transfer_size' register before 'address' register.Signed-off-by: Michael Burr
Signed-off-by: Michal Simek -
Signed-off-by: Tom Rini
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In Kbuild, every makefile must have non-empty obj- or obj-y.
Otherwise, built-in.o will not be created and the link stage
will fail.Signed-off-by: Masahiro Yamada
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There is a strange comment in fit_image_load().
This function can be used for loading Kernel Image, FDT
as well as ramdisk.Signed-off-by: Masahiro Yamada
Cc: Simon Glass
Acked-by: Simon Glass -
If the whole code is surrounded by #ifdef(CONFIG_ ) .. #endif,
it should be moved to Makefile.Signed-off-by: Masahiro Yamada
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- When CONFIG_DISPLAY_CPUINFO is not enabled,
print_cpuinfo() should be defined as an empty function
in a header, include/common.h- Remove #ifdef CONFIG_DISPLAY_CPUINFO .. #endif
from caller, common/board_f.c and arch/arm/lib/board.c- Remove redundant prototypes in arch/arm/lib/board.c,
arch/arm/include/asm/arch-am33x/sys_proto.h and
board/nokia/rx51/rx51.h, keeping the one in include/common.h- Add #ifdef CONFIG_DISPLAY_CPUINFO to the func definition
where it is missingSigned-off-by: Masahiro Yamada
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Signed-off-by: Masahiro Yamada
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CONFIG_SYS_GBL_DATA_SIZE is not used any more.
The size of struct "global_data" is automatically calculated
by asm-offsets. (See lib/asm-offsets.c)GENERATED_GBL_DATA_SIZE should be used instead of
CONFIG_SYS_GBL_DATA_SIZE.Signed-off-by: Masahiro Yamada
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It is convenient to have all device trees on the same SoC compiled.
It allows for later easy repackaging without the need to re-run
the make file.- Build device trees with the same SoC under arch/$(ARCH)/dts
- Copy the one specified by CONFIG_DEFAULT_DEVICE_TREE or
DEVICE_TREE=... to dts/dt.dtbSigned-off-by: Masahiro Yamada
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Unlike Linux Kernel, U-Boot historically had *.dts files under
board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/.I think arch/$(ARCH)/dts dicretory is a better location
to store both *.dts and *.dtsi files.For example, before this commit, board/xilinx/dts directory
had both Microblaze dts (microblaze-generic.dts) and
ARM dts (zynq-*.dts), which are totally unrelated.This commit moves *.dts to arch/$(ARCH)/dts/ directories,
allowing us to describe nicely mutiple DTBs generation in the next commit.Signed-off-by: Masahiro Yamada
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Useful rules in scripts/Makefile.lib allows us to easily
generate a device tree blob and wrap it in assembly code.We do not need to parse a linker script to get output format and arch.
This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb.
Signed-off-by: Masahiro Yamada
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- Delete fs.xml from DOCBOOKS to fix an error.
Commit e3ff797c added fs.xml to DOCBOOKS
but missed to add doc/DocBook/fs.tmpl.
- Fix the location of include guard in include/linker_lists.h.Signed-off-by: Masahiro Yamada
Reported-by: Abraham Varricatt
Acked-by: Simon Glass -
Signed-off-by: Masahiro Yamada
Acked-by: Simon Glass -
tools/kernel-doc/docproc.c and tools/kernel-doc/kernel-doc are
files imported from Linux Kernel.They originally resided under scripts/ directory in Linux Kernel.
This commit moves them to the original location.
Signed-off-by: Masahiro Yamada
Acked-by: Simon Glass -
Commit bb02c536 stopped creaing a symbolic link include/asm.
Signed-off-by: Masahiro Yamada
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fw_printenv is a program which mostly runs on the target Linux.
Before switching to Kbuild, we needed to set HOSTCC at the
command line like this:
make HOSTCC= envGoing forward we can cross compile it by specifying CROSS_COMPILE:
make CROSS_COMPILE= env
This looks more natural.Signed-off-by: Masahiro Yamada
Tested-by: Gerhard Sittig -
Without this workaround, you will see a lot of ".*.su" files
at the top directory after building with a compiler
which supports "-fstack-usage" option.Signed-off-by: Masahiro Yamada
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We had switched to Kbuild, so we do not need to
delete sandburst board files at every build.U-Boot conventional build system did not check the
update of command line option, -DBUILDUSER.Kbuild can handle it nicely and re-builds object files
when command line options are changed.
(The file ".*.cmd" stores the information how the file
was generated at the previous build.)Signed-off-by: Masahiro Yamada
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For out-of-tree build
- Check if the source tree is clean
- Create a Makefile in the output directorySigned-off-by: Masahiro Yamada
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This commit fixes two problems:
[1] We could not do board configuration and "make all"
in one command line.For example, the following did not work as we expect:
$ make sandbox_config all
Configuring for sandbox board...
make: Nothing to be done for `all'.[2] mixed-target build did not work with -j option
For example, the following did not work:
$ make -j8 sandbox_config u-boot
Makefile:481: *** "System not configured - see README". Stop.
make: *** [u-boot] Error 2
make: *** Waiting for unfinished jobs....
Configuring for sandbox board...Going forward, we can do
$ make -j8 sandbox_config allThis is the same as
$ make sandbox_config
$ make -j8Signed-off-by: Masahiro Yamada
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This commit refactors cleaning targets such as
clean, clobber, mrpropper, distclean
with scripts/Makefile.clean.By using scripts/Makefile.clean, we can recursively descend
into subdirectories and delete generated files there.We do not need add a big list of generated files
to the "clean" target.Signed-off-by: Masahiro Yamada
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- Move "easylogo", "gdb" tagets to tools/Makefile
- Delete "gdbtools" target (same as "gdb")Signed-off-by: Masahiro Yamada
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$(MTD_VERSION) is used in tools/env/Makefile
If you specify a variable at a command line like:
$ make MTD_VERSION=old env
or specify it thru an envrionment variable like:
$ export MTD_VERSION=old
$ make env
it is inherited to the sub-make too.
We do not need to pass it from the top Makefile explicitely.Signed-off-by: Masahiro Yamada
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This commit refactors rules of directory descending
and defines u-boot-dirs and u-boot-all-dirs.
(We will need u-boot-all-dirs when using
scripts/Makefile.clean)Additionally, rename LIBS-y to libs-y.
Signed-off-by: Masahiro Yamada
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Signed-off-by: Masahiro Yamada
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This commit changes the top Makefile to handle various targets
nicely.
Make targets are divided into four categories:- mixed-targets
We can call a configuration target and build targets
at one command line like follows:
$ make _config u-bootThey are handled one by one.
- config targets
_config- no-dot-config-targets
Targets we can run without board configuration such as
clean, mrproper, distclean, TAGS, %docs, etc.- build targets
The other target which need board configuration.Signed-off-by: Masahiro Yamada
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Before this commit, "make tidy" did
"make clean" + delete "*.depend*" files.But, we do not have "*.depend*" files any more,
which means "make tidy" is the same as "make clean".This commit removes the redandant target "tidy".
Signed-off-by: Masahiro Yamada
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Before this commit, {spl,tpl}-autoconf.mk was always generated
at the top Makefile even if SPL(TPL) build was not selected.This commit moves the build rule of {spl,tpl}-autoconf.mk
from the top Makefile to spl/Makefile.
It prevents unnecessary {spl,tpl}-autoconf.mk from being
generated.Signed-off-by: Masahiro Yamada
