| Commit message (Collapse) | Author | Age | Files | Lines |
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Check for the right machine type in initcalls before executing them to
make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Pass MACH_TYPE_TX28 to barebox_arm_entry() and check for it in initcalls
to make the board multi image safe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Allow to pass a machine type number as directly as boarddata. This makes
it easy for non device tree boards to pass a machine type and to
identify themselves during runtime.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The command structure allows adding more subcommands and is designed to
match the Linux program mmc from the mmc-utils. So later more commands
can easily be added if need be.
Compared to mmc-utils'
mmc enh_area set <-y|-n|-c> <start KiB> <length KiB> <device>
the command that is implemented here (
mmc enh_area [-c] <device>
) is easier to use (because you don't have to check the maximal allowed
size by reading some registers and calculate the available size from
them (which then must be calculated back to register values by the mmc
command)) but less flexible as it doesn't allow all the crazy
possibilities specified in the eMMC standard (yet?) but just creates an
enhanced area with maximal size.
In the future something like
mmc enh_area -s 30k <device>
could be used to not use the maximal but an explicit size.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Also convert the only user of mci_get_device_by_name to this new
wrapper.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Currently the the driver don't handle any error and return immediately.
Handling the errors correctly is a must to support defered probing.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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If the current regulator can't be requested because of -EPROBE_DEFER we
shouldn't print a error and ignore it.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We have barebox get its environment out of a "barebox-environment"
partition. The BootROM and first stage bootloader both select partitions
on name not UUID, so we're following suit.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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dk2_postcore_init is not at postcore init level like the name would
suggest, but at mem init level. Rename it accordingly.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The barebox,environment binding documentation notes following for
the device-path property's second string:
> <partname> can be the label for MTD partitions, the number for DOS
> partitions (beginning with 0) or the name for GPT partitions.
This doesn't work currently because the named partitions are realized as
symlinks and those aren't searched by device_find_partition.
Fix this by having symlinks feature an appropriate partname if the cdev
they link at has one and then have device_find_partition search those as
well.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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https://github.com/KLSMartin/barebox into for-next/misc
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On some boards (such as i.MX) the buffer might contain both:
A barebox image *and* a GPT partition table.
Thus, irrelevant filetypes should be ignored.
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The SMSC FDC37C93xAPM is the Super I/O chip on the Dell Latitude 7490.
This adds device detection for it and its siblings, so device drivers
can be written against it or init scripts can use its regmap interface.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This is an adaptation of the Linux v5.3 f71808e_wdt driver for the watchdog
component of the Fintek Super I/O chips.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Super I/O chips require a password to unlock access to the I/O ports.
Add a driver that pokes the password and registers the appropriate GPIO
and Watchdog devices as well as a regmap reflecting the Super I/O chip.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Super I/O chips are ICs common to x86 that are used for interfacing
to low-bandwidth peripherals. They often contain serial ports, watchdog
timers and hardware monitoring units.
They are usually addressable via one of two I/O port pairs, either
0x2e-0x2f or 0x4e-0x4f, but they don't typically respond to reads from
their range unless a device-specific 'password' has been poked in.
After this is done, they are read and written in the same manner however.
On Linux, these devices aren't subject to any device/driver model.
Each driver for some function (e.g. watchdog or GPIO) duplicates the
device probe in the module_init and board-specific configuration
is handled via module parameters.
Lets do it a bit fancier in barebox and add a helper to register chips
and a regmap for the control and configuration registers as well as a
helper to register child devices for each function contained within the
Super I/O chip.
Board-specific configuration, e.g. which pin to use as a watchdog reset,
can then be realized using barebox device-specific parameters.
The regmap will be more of a debugging aid, however.
For ease of porting from Linux, it's expected that access to the
I/O ports won't happen via the regmap. For this reason, the new
<superio.h> header offers functions to read/write these chips' registers
as well.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This enables easy access to the pfuze3001's registers via regmap.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We pass along driver_data that goes unused. Drop it.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The DA9062 PMIC is a mfd device which have 5 gpios. These can be
configured to work as input/output or to have an alternate function.
This commit adds the support to configure the gpios as input or output.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The upstream dt-bindings abstracts the DA9063/2 PMIC MFD by multiple
of-subnodes and the linux-mfd core creates platform-devices for each
node. Due to the lack of a mfd fw we need to add the platform-devices by
our own to reuse the upstream bindings.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Ethernet support for ar9331 is upstream now. So, drop every thing what
is provided by upstream devicetree and rename compatible in the driver.
barebox network driver will need more work to be upstream compliant. For
example we should not request or touch the gmac register directly. Since
currently it is not clear how this should be implemented, patch the
upstream dts with reg-names = "ge0", "gmac".
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This reverts [1] as it annihilated its counterpart of commit [2].
[1] 5033b4f58f71 ("common: state: harmonize code with dt-utils")
[2] 480cde1b2283 ("state: keep backward compatibility")
Fixes: 5033b4f58f71 ("common: state: harmonize code with dt-utils")
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This ports the following dt-utils commit (as the actual code that is changed is
removed by the preprocesser when compiling barebox this patch is only of
cosmetic nature to keep both code bases in sync):
| commit 634317cc91202304c1477a6d738d7c7691b80419
| Author: Kim Christensen <kch@skov.dk>
| Date: Wed Sep 18 16:48:23 2019 +0200
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| state: backend_bucket_circular: fix double free()
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| The function state_mtd_peb_read() is only a user of buf and not its owner,
| hence it may not deallocate it.
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| Signed-off-by: Kim Christensen <kch@skov.dk>
| Reviewed-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
| Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
| Signed-off-by: Roland Hieber <rhi@pengutronix.de>
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Comparing barebox' commit [1] with dt-utils' commit [2] it is obvious that
adjusting the return value has been forgotten in barebox - fix that.
(As the actual code that is changed is removed by the preprocesser when
compiling barebox this patch is only of cosmetic nature to keep both code bases
in sync).
[1] 9d6d91931afb ("state: Remove -EUCLEAN check from userspace tool")
[2] 791a2404116d ("state: Remove -EUCLEAN check from userspace tool")
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Partition devices are not directly associated with the nvmem instance but via
their master cdev. Thus reading and writing needs to be handled via the
master.
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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the config is already in an if COMMAND_SUPPORT clause, so no need to
depend on it as well. Remove the redundancy.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Clang will warn about unknown warnings but will not return false
unless -Werror is set. GCC will return false if an unknown
warning is passed.
Adding -Werror make both compiler behave the same.
[arnd: it turns out we need the same patch for testing whether -ffunction-sections
works right with gcc. I've build tested extensively with this patch
applied, so let's just merge this one now.]
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[afa: ported to barebox from upstream c3f0d0bc5b01ad9]
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Based on a unpublished patch from Andrew Lunn:
When the switch is hardware reset, it reads the contents of the
EEPROM. This can contain instructions for programming values into
registers and to perform waits between such programming. Reading
the EEPROM can take longer than the 100ms
mv88e6xxx_hardware_reset() waits after deasserting the reset
GPIO. So poll the EEPROM done bit to ensure it is complete.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
orignal patch augmented to have necessary Global 1 plubming, ported to
Barebox and slightly changed.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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s/MIDO/MDIO
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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barebox currently announces support for ITU V.25ter AT commands, but
doesn't handle them specially when they arrive. Instead they are passed
as is to the sole barebox input console, where it may interfere with
valid user input.
This is especially annoying as ModemManager probes ttyACM devices that
announce their AT command support. So even when not using the ttyACM
device at all, the other UART ports are affected.
Fix this by ceasing to announce USB_CDC_ACM_PROTO_AT_V25TER as function
protocol. After applying this patch, I can't see any spurious AT or ~x~
symbols on the console anymore.
Cc: <bst@pengutronix.de>
Cc: <jlu@pengutronix.de>
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The __ubsan_handle_shift_out_of_bounds handler would be called for code
shifting a one into the sign bit like (1 << 31), which is all too common
in barebox. It's technically UB, but it's so prevalent that it's highly
unlikely to be treated by a compiler as anything else than the
standard-compliant (1U << 31).
Check for this case here and ignore it selectively.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The input console is usually called /dev/cs0 and devinfo doesn't yield
any extra information what this device is about. Rename it for clarity.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Some consoles, like the input console (usually /dev/cs0), don't feature
a puts or putc callback. Trying to echo out of them would thus crash:
barebox@Embest MarS Board i.MX6Dual:/ echo -a /dev/cs0
prefetch abort
pc : [<00000004>] lr : [<4fd05071>]
WARNING: [<...>] (fops_write+0xd/0x10)
WARNING: [<...>] (devfs_write+0x21/0x2a)
WARNING: [<...>] (__write+0xcb/0xf0)
WARNING: [<...>] (write+0x2d/0x68)
WARNING: [<...>] (dputc+0x31/0x34)
WARNING: [<...>] (do_echo+0xcb/0x144)
Fix this by only allowing open(.., O_WRONLY) or open(..., O_RDWR) when
puts is defined. Consoles defining putc are covered by this as well as
those have putc-calling __console_puts assigned as their puts when they
are registered. Now echo -a /dev/cs0 would yield:
open: Operation not permitted
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Due to the recursive ubi_thread implementation in the barebox, a large
amount of wear-leveling can lead to a stack overflow.
This was observed during extensive ubi stress tests with the linux
kernel and periodic power cycles. We found that if the wear-leveling
threshold is exceeded and a large amount of erase blocks need
wear-leveling the stack can overflow.
The hardware used to observe this was a phyCORE-i.MX 6 with 1GB NAND flash.
As the kernel is perfectly capable of handling wear-leveling we can
disable wear-leveling in the barebox by maxing out the threshold and
removing its Kconfig option.
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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dev_get_regmap has some copy-paste left-over in the comment.
Rectify this.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The list of boot entries can contain items that are not blspec entries.
For example, the bootchooser also adds an item to this list. Therefore,
blspec cannot unconditionally interpret entries as blspec entries.
The error is reproduced by listing the boot entries with the bootchooser
and a rootfs with blspec entries, e.g.:
boot -l bootchooser /mnt/nfs
Check if a bootentry is a blspec entry by testing if the boot function
is blspec_boot.
Reported-by: Thomas Hämmerle <Thomas.Haemmerle@wolfvision.net>
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This makes sure that automount points get handled even if the path
doesn't end with a '/'.
Signed-off-by: Robert Karszniewicz <r.karszniewicz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Generated by
perl -p -i -e 's/lenghte?/length/' arch/arm/boards/chumby_falconwing/falconwing.c arch/arm/mach-samsung/mem-s3c64xx.c fs/ext4/ext_common.h lib/gui/lodepng.c include/jtag.h
There is another instance in dts/Bindings/usb/s3c2410-usb.txt, this is
fixed in Linux v5.3-rc1 so supposed to be fixed soon in barebox, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On some machines the python command is provided by Python 3 while on
most (at least in my bubble) it is still Python 2. Modify the code to
make it usable by both Python versions.
print_function is available in __future__ since Python 2.6.0a2, which
shouldn't be a relevant restriction.
The modified script generates the same documentation as the old one;
independent if the script is called using Python 2 (here: 2.7.16) or
Python 3 (here: 3.7.3).
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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The source files are parsed by $(make docs). Currently this is done
using python2 (actually 'python' which is still python2 on most
machines). When using python3 however (which has a stricter encoding
handling) it is easier if all input is in utf-8 encoding. So convert the
few remaining latin1 encoded files to utf-8. This only affects code
comments.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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read_file() and read_file_2() return a '\0' terminated buffer to make
sure the buffer is usable as a string. Other code like read_file_line()
depends on this behaviour, so document it explicitly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Each invocation of 'imd' ate up to 1MB of RAM.
Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This allows to simplify some callers as can be seen from the
phytec-som-am335x/board.c change. (The check for state != NULL could be
dropped already before.)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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state_get_name() is not used and so can be removed.
state_backend_dtb_file() and state_backend_raw_file() were dropped in
c999b507da98 ("state: Refactor state framework").
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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