Even though the exception vector table is a fundamental part of the ARM
architecture, U-Boot mostly does not make real use of it, except when
crash dumping. But having it in takes up quite some space, partly due to
the architectural alignment requirement of 2KB. Since we don't take special
care of that, the compiler adds a more or less random amount of padding
space, which increases the image size quite a bit, especially for the SPL.
On a typical Allwinner build this is around 1.5KB of padding, plus 1KB
for the vector table (mostly padding space again), then some extra code
to do the actual handling. This amounts to almost 10% of the maximum image
size, which is quite a lot for a pure debugging feature.
Add a Kconfig symbol to allow the exception vector table to be left out
of the build for the SPL.
For now this is "default y" for everyone, but specific defconfigs,
platforms or .config files can opt out here at will, to mitigate the code
size pressure we see for some SPLs.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
The arm64 exception handling code is quite big, mostly due to
architectural alignment requirements. Each exception entry spans 32
instructions, which sounds generous, but is too small to fit all of the
save/branch/restore code in there. So at the moment we use only four
instructions, branching into shared save and restore routines.
To not leave the space for those remaining 28 instructions wasted, let's
split the save and restore routines and stuff them into the gaps.
This saves about 250 bytes of code, which is helpful for those tight
SPLs.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Several boards do not use the default UART3, so they do a check
for ifdef CONFIG_SPL_BUILD and enable the pointer for
CONFIG_SYS_NS16550_COMx to point to OMAP34XX_UARTx.
Let's consoldate this all into one place, and remove them from the
individual boards.
Signed-off-by: Adam Ford <aford173@gmail.com>
This patch adds support for STMicroelectronics STM32 ADC (analog to
digital converter). It's originally based on Linux kernel v4.18-rcs
drivers/iio/adc/stm32-adc*. It's composed of:
- core driver (UCLASS_SIMPLE_BUS) manages common resources (clk, regu).
- child drivers (UCLASS_ADC) declare each ADC, channels and handle
conversions.
This driver currently supports STM32H7 and STM32MP1 ADC.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This patch adds documentation of device tree bindings for the STM32 ADC.
It's based on linux-v4.18-rc* dt-bindings, at the time of writing:
- Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
device_get_supply_regulator() only needs to be called once.
But each time there's call to adc_vxx_value() for instance, it calls
adc_vxx_platdata_update() -> device_get_supply_regulator().
So, move device_get_supply_regulator() to pre_probe() routine.
This also allows vdd_supply/vss_supply to be provided directly from
uc_pdata, e.g dt-binding variant like stm32-adc provide its own
'vref-supply'.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add clk_valid() to check for optional clocks are valid.
Call clk_valid() in test/dm/clk.c and add relevant test routine to
sandbox clk tests.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Trivial Kconfig cleanup. Use tabs instead of spaces.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
The "Beaglebone Enhanced" by Sancloud is based on the Beaglebone Black,
but with the following differences:
* Gigabit capable PHY
* Extra USB hub, optional i2c control
* lps3331ap barometer connected over i2c
* MPU6050 6 axis MEMS accelerometer/gyro connected over i2c
* 1GiB DDR3 RAM
* RTL8723 Wifi/Bluetooth connected over USB
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
Align the size of the carveout region to 2M. This ensures that the size
can be accurately represented by an LPAE page table that uses sections.
This solves a bug (hang at boot time soon after printing the DRAM size)
that only shows up when the following two commits are merged together:
d32e86bde8 ARM: HYP/non-sec: enable ARMV7_LPAE if HYP mode is supported
6e584e633d ARM: tegra: avoid using secure carveout RAM
Cc: Mark Kettenis <kettenis@openbsd.org>
Cc: Alexander Graf <agraf@suse.de>
Acked-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
At present this function takes a filename, but it is better to use an Fdt
object so that the caller can control this, perhaps obtainint the device
tree from a bytearray. Update the method accordingly and also fix a
confusing parameter name.
Signed-off-by: Simon Glass <sjg@chromium.org>
This property has been changed to 'offset'. To help downstream users who
might still be using 'pos', add a check that this is not used by mistake.
Signed-off-by: Simon Glass <sjg@chromium.org>
This function name is too generic for its purpose and is therefore
confusing. It actually only applies to blobs, so rename it to indicate
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the map only shows the offset and size for each region. The
image position provides the actual position of each entry in the image,
regardless of the section hierarchy.
Add the image position to the map.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add support for U-Boot's TPL and TPL device tree. Also fix a few comments
in the other device-tree entries.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a function which can decode a property containing a list of phandles.
This is useful for finding nodes linked to a property. Also provide a way
to look up a single phandle and get the Fdt object from a Node.
Signed-off-by: Simon Glass <sjg@chromium.org>
When this fails it is useful to see the current directory, since U-Boot's
build system will typically change into the output directory during the
build. Add this information to the error.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tests use the 'test_result' feature to return a predetermined command
result for particular commands. The avoids needing to have the real
command available just to run a test. It works by calling the function
provided by the test, to get the value.
However sometimes the test does need to run the real command. Allow it to
fall back to do this when the function does not return a result.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is sometimes useful to have an area of the image which is all zeroes,
or all 0xff. This can often be achieved by padding the size of an an
existing entry and setting the pad byte for an entry or image.
But it is useful to have an explicit means of adding blocks of repeating
data to the image. Add a 'fill' entry type to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an entry type which can hold a Chrome OS EC.
To make this work a new entry type is created, which supports getting a
blob filename from the command line.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add an entry which can hold an FMAP region as used by flashrom, an
open-source flashing tool used on Linux x86 machines. This provides a
simplified non-hierarchical view of the entries in the image and has a
signature at the start to allow flashrom to find it in the image.
Signed-off-by: Simon Glass <sjg@chromium.org>
Create a new README containing documentation for the entry types supported
by binman. This provides an easy reference in one place. It is
automatically generated from the source-code documentation.
Add a reference to this from the binman README.
Signed-off-by: Simon Glass <sjg@chromium.org>
Binman supports quite a number of different entries now. The operation of
these is not always obvious but at present the source code is the only
reference for understanding how an entry works.
Add a way to create documentation (from the source code) which can be put
in a new 'README.entries' file.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present only the more complex entries are documented. It is useful to
have documentation for all entries in one place.
As a first step, add and expand the documentation to cover all entries.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present binman needs libfdt.py to be available before it will do
anything, even print help. Import those modules later to avoid this, as it
is bad practice to fail to even show help on startup.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is useful to able to write an identifying string to the image within an
entry. Add a 'text' entry type to handle this. The actual text is
typically passed to binman on the command line. The text is not itself
nul-terminated but this can be achieved if required by setting the size of
the entry to something larger than the text.
Signed-off-by: Simon Glass <sjg@chromium.org>
Sometimes it is useful to pass binman the value of an entry property from
the command line. For example some entries need access to files and it is
not always convenient to put these filenames in the image definition
(device tree).
Add a -a option which can be used like this:
-a<prop>=<value>
where
<prop> is the property to set
<value> is the value to set it to
Signed-off-by: Simon Glass <sjg@chromium.org>
At present each entry has an offset within its parent section. This is
useful for figuring out how entries relate to one another. However it
is sometimes necessary to locate an entry within an image, regardless
of which sections it is nested inside.
Add a new 'image-pos' property to provide this information. Also add
some documentation for the -u option binman provides, which updates the
device tree with final entry information.
Since the image position is a better symbol to use for the position of
U-Boot as obtained by SPL, update the SPL symbols to use this instead of
offset, which might be incorrect if hierarchical sections are used.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present the .map file produced for each image does not include the
overall image size. This is useful information.
Update the code to generate it in the .map file as well as the updated
FDT. Also fix a few comments while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
A few lines are commented out and can be removed. Also fix return-value
docs for _DoReadFile() and _DoReadFileDtb().
Signed-off-by: Simon Glass <sjg@chromium.org>
The purpose of some of the tests is not obvious from the function names.
Add a few comments to help with understanding.
Signed-off-by: Simon Glass <sjg@chromium.org>
After some thought, I believe there is an unfortunate naming flaw in
binman. Entries have a position and size, but now that we support
hierarchical sections it is unclear whether a position should be an
absolute position within the image, or a relative position within its
parent section.
At present 'position' actually means the relative position. This indicates
a need for an 'image position' for code that wants to find the location of
an entry without having to do calculations back through parents to
discover this image position.
A better name for the current 'position' or 'pos' is 'offset'. It is not
always an absolute position, but it is always an offset from its parent
offset.
It is unfortunate to rename this concept now, 18 months after binman was
introduced. However I believe it is the right thing to do. The impact is
mostly limited to binman itself and a few changes to in-tree users to
binman:
tegra
sunxi
x86
The change makes old binman definitions (e.g. downstream or out-of-tree)
incompatible if they use the 'pos = <...>' property. Later work will
adjust binman to generate an error when it is used.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present this test assumes that the symbols are returned in address
order. However, objdump can list symbols in any order and dictionaries do
not guarantee any particular order when iterating through item.
Update elf.GetSymbols() to return an OrderedDict, sorted by address, to
avoid any problems.
Signed-off-by: Simon Glass <sjg@chromium.org>
That's a set of prety minor changes and fixes for ARC.
Among them:
* Improvement in CREG GPIO driver used on ARC dev boards
that allow us to re-use the driver for SPI's chip select
* Enable SPI-flsh on AXS10x boards which allows to update
U-Boot binary that gets loaded by boot-ROM
* Fix accommodating always utilized unaligned access by
GCC for ARC starting from 8.1.0
The openrd platforms are currently orphaned, and are constantly on-edge
or overflowing their binary limit. Exclude them from travis for now.
Cc: Vagrant Cascadian <vagrant@debian.org>
Cc: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
After talking with Albert, mark these boards as orphaned as he no longer
has one.
Cc: Albert ARIBAUD <albert-u-boot@aribaud.net>
Cc: Vagrant Cascadian <vagrant@debian.org>
Cc: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Update the MAINTAINERS file to list Otavio Salvador as the maintainer
for this board.
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Tom Rini <trini@konsulko.com>
The patch "dm: Change CMD_DM enabling"
(sha1: 08a00cba06) was incorrectly updated
and PICO_IMX7D is missing imply CMD_DM and WARP7 has it twice.
This patch is fixing it.
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
There was an EHCI endian accessor issue. Now it's fixed by commit
9829ce2ff2 ("usb: ehci: Fix accessors for big-endian platforms and
descriptors"). Revert commit e6a727fffe ("powerpc/T104xRDB: Fix
endian access issue on EHCI intinalization"). On T104x platform,
USB EHCI register use little endian.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
[YS: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
There was an EHCI endian accessor issue. Now it's fixed by commit
9829ce2ff2 ("usb: ehci: Fix accessors for big-endian platforms and
descriptors"). Revert commit 0f2296bab1 ("powerpc/p1_p2_rdb_pc:
Fix endian access issue on EHCI intinalization"). On P1 P2 platforms,
USB EHCI register use little endian.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
[YS: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
