All versions of barebox_arm_entry (in uncompress.c, start.c and
start-pbl.c) appear to be doing exacty the same thing. So move the
definition into a separate file and use IS_ENABLED macro to avoid
re-definition.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Both barebox_boarddata and barebox_boot_dtb perform essentially the
same function -- hold a pointer to a chunk of private data. Since only
one variable is ever used at any given time we may as well merge those
two variable into one. This also allows us to share more code between
two boot paths (board data vs. device tree)
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The id check does not work on some newer drives.
Acked-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add semihosting API implementation and implement a filesystem driver
to access debugging host filesystem using it.
Tested on Freescale SabreSD board (i.MX6Q) using OpenOCD
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Make sure that the DT passed to Linux reflects the actual number of CPU
cores present in the system by reading the SCU configuration. As both
the Q and DL variants of the MX6 have versions with cores fused away,
but the DTs have the maximum number of cores specified, this just deletes
any nonexistent CPU core nodes.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Create a new file named 'barebox-flash-images' in the top level output
directory that lists each image generated, one per line. Paths will
be relative to the top level output directory. This works if multiple
images are generated as well as for a single image.
Also update the existing barebox-flash-image symlink to point to the
image in all cases where there is a single image generated. If
multiple images are generated, it will point to the non-existent file
'multi-image-build'.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently we get a null pointer dereference when booting linux on RPi
which use "uart-pl011" driver. This driver doesn't implement a remove
driver callback. This patch adds a check before calling the remove
callback if the driver which use the amba bus implement such
functionality.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Running checkpatch with perl version 5.22 occur the following warnings:
Unescaped left brace in regex is deprecated, ... checkpatch.pl line 2017.
Unescaped left brace in regex is deprecated, ... checkpatch.pl line 2267.
Unescaped left brace in regex is deprecated, ... checkpatch.pl line 2268.
...
lot of weird things
...
)\(.*\).*\s{ <-- HERE / at ./scripts/checkpatch.pl line 2016.
This patch fix these warning, an similar commit was done in linux kernel
commit: 4e5d56bdf892e18832a6540b63ebf709966bce2a ("checkpatch: fix left
brace warning").
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds missing brackets in the help text of loadb command.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds support support for the i.MX6 Technexion Wandboard. The
board comes in different SoC variants and different amounts of RAM.
The baord type is autodetected based on the SoC type, so all boards
can be supported by the same binary image.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Otherwise boards cannot include board files from the kernel dts
without getting the file ordering wrong.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In the current multi image build process the DTBs end up uncompressed
in the PBL. This can be annoying because the PBL is often very size
constrained.
This patch allows to put the DTBs in as lzo compressed binary into
the PBL. Since lzo offers quite good compression ratios for DTBs no
other compression algorithm has been implemented for now.
Boards which want to use the compressed DTBs only have to change
the __dtb_ prefix in the DTB name to __dtb_z_. Also they should select
ARM_USE_COMPRESSED_DTB to make sure barebox supports uncompressing
the DTB.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Normally code providing a feature should be implemented in common/ which
is then called from the command code. Follow this rule and move some more
of the memtest code to common/.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The i.MX6 DL/S DT has been changed to use more specific compatibles as
GPTv2 has a different programming model for modes used in Linux. This
difference doesn't matter for Barebox, but the old mx31 compatible has
been dropped from the DT, so we need to match on the one still present.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Devicetrees tend to become very long and it is hard to find the
interesting nodes in a full tree output.
This patch adds the -n option to the of_node command. With this
option only the names of the nodes are printed, but not the properties.
The resulting output is much shorter and the node one is interested
in can be copy/pasted to a second call to of_node.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Bit 0 of the MAPSR register controls auto power down.
Explicitly clear this bit instead of reserved bit when
exiting from mmdc_do_write_level_calibration().
Signed-off-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The eth code registers an OF tree fixup that looks for any nodes in
the Linux oftree that match eth devices loaded in barebox and sets the
mac-address property in those nodes. The purpose is to pass MAC
addresses to the Linux kernel for drivers that expect the MAC address
to be in the device tree.
If barebox does not have a driver for the network device, either
because it has been disabled or because one does not exist, then the
OF tree will not be fixed up to include a MAC address.
The eth code also has a list of MAC addresses which board code has
registered, usually done when it reads the address from an EEPROM or
on-chip memory. If an eth device is created later in the boot, it
will look here for an address.
The registered MAC address list is not used for the OF tree fix up,
and this patch changes that. This way barebox can place a MAC address
in the device-tree without needing a driver for the network device.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Code that fixes up one node with a new MAC address is refactored into
a new function that eth_of_fixup() calls in a loop.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
pblx-y must be passed the entry point function without any extension.
Otherwise the pblb file is not added to $targets and is removed by
make as an intermediate file.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The BINARY files given in the config files are expected to be relative
to the place kwbimage is called from. This is bad since it breaks where
kwbimage is called from the build directory and not the source
directory.
It makes more sense to make the paths in the config files relative
to the config files which works with out of tree builds and is also
more what a user normally expects.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The configfile is read in image_create_config_parse(), so move opening
the file to there aswell and pass the configfile as filename instead of
FILE *.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When opening a cdev also allow a path beginning with /dev/ as some
users of cdev_open already open coded this behaviour.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We have places in the code where we assume that devfs is mounted on
/dev/, so enforce this path to avoid surprises.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Run_command() would return zero to indicated success so treating it as
error case would completely break command repetition logic, so change
comparinson operator from "less or equal" to "less then"
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Run_command() uses 0 to indicate success and negative values to
indicate errors, whereas execute_command() uses 0 for success and
positive integers to represent error codes. Conflating the two breaks
the code that calls run_command and then checks for error code sign to
detect problems, so avoid that by doing a very simple transformation
on the result of execute_command
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
From reading ARM architecture related documentation if appears that
while unaligned memory access is supported by the processor in general
it is not supported if MMU is disabled.
The problem in question can be easily reproduced by building the code
without this patch, MMU disabled, and trying to run 'memtest'
command. Which would in turn call mem_test() which would eventually
call show_progress(). That last function, if build without
-mno-unaligned-access would result in unaligned memory access which
would result in Barebox hanging.
This patch instructs the compiler to not generate any unaligned
accesses to memory thus avoiding the problem.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Even if memtest is started in endless mode it is still useful to see
current iteration count. Add the code to print that.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The USB core will make sure we do not re-enter the ehci driver, so
we can use regular mdelay instead of mdelay_non_interruptible().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Now that the USB core makes sure that we do not re-enter USB
drivers we no longer have to detect re-entrancy in the ehci driver.
This reverts commit 8426cc641d.
Now that the USB core makes sure that we do not re-enter USB
drivers we no longer need mdelay_non_interruptible() but can use
regular mdelay() again.
This reverts commit 4cfd909412.
Skip poll if either usb_submit_int_msg() or usb_get_report()
returned -EAGAIN.
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fixes:
In function `simple_panel_ioctl':
undefined reference to `of_get_display_timings'
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It causes build failures on other arches than socfpga and the driver
doesn't use anything provided by this header.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fixes:
In function `usb_kbd_probe':
(usb_kbd_probe): undefined reference to `console_set_active'
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When mount is given a full path (including /dev/) to the cdev file
we can no longer automatically detect the filesystem. This is broken
since:
e89f1a1 detect_fs: use device instead of file
Fix it by dropping the /dev/ component of the path.
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In order to make the system compliant to the ARMv7 ARM RevC clarifications
regarding conflicting memory aliases the shared override bit needs to be
set. This needs to be done in the bootloader, as the kernel will not apply
any modifications to the AUX_CTRL register by default, as it is a secure only
register.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
