This will automatically call barebox_update for the transfered file if
it is an ARM Barebox image and the destination file is defined by some
update handler.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
mtd_[read|write|erase] are input functions to the mtd subsystem, so
check for valid input data here rather than relying on the drivers doing
this. The checks are copied from the Kernel as of 4.5-rc5
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added a function to register a fixup to enable or disable
device tree nodes.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Passing phy configuration to the ep93xx_eth driver was not supported yet
and will be added with this patch. When no pdata is passed, the probably
broken default of phy_addr = 0 will be used to maintain compatibility
with the previous implementation.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
dev_request_mem_region returns a void * which shall be checked with
IS_ERR(), but in some cases the valid pointer returned clashes with
error values. This is especially the case on some Atmel SoCs.
This introduces dev_request_mem_resource which returns a struct resource
instead which in any case can be checked with IS_ERR(). It's the drivers
responsibility then to get the IOMEM pointer from the resource.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a function to check for the existence of an update handler
based on the supplied bbu_data.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a device >4GiB is erased, not only the offset can be bigger
than 4GiB, but also the size. This happens with the simplest command
to erase a device: erase /dev/nand0. Make the size argument a 64bit
type to make this work.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Make the userspace structs 64bit where necessary. Since we do not have
separated kernel/userspace in barebox we can just modifiy the original
structs instead of adding separate 64bit structs.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds initial regmap support. Function prototypes are from
the Kernel, the implemention is mostly rewritten. Currently the
regmap support is limited to the bare minimum to get started.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The HABv4 functions need access a part of the ROM which is
located in the zero page. This must be done early, before the
MMU has been configured and the zero page has been set to faulting.
The HAB functions currently use cpu_is_imxxy(). At the stage where
HAB is called the i.MX CPU type variable is not yet initialized,
so this code only works when only one i.MX type is enabled and
cpu_is_imxxy() are compile time constants.
To fix HAB support when more than one i.MX type is enabled make the
HAB status function SoC specific so that we can drop the use of
cpu_is_imxxy().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit changes the behaviour of the 'miitool'. Now in order to show
PHY's link information 'miitool' should be invoked as such:
miitool -s [PHY]
Also, implment code to allow to register a dummy PHY device in order to
be able to perform raw MDIO bus access.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on the original patch for linux:
commit 00b4d9a14125f1e51874def2b9de6092e007412d
Author: Maxime COQUELIN <maxime.coquelin@st.com>
Date: Thu Nov 6 10:54:19 2014
On some 32 bits architectures, including x86, GENMASK(31, 0) returns 0
instead of the expected ~0UL.
This is the same on some 64 bits architectures with GENMASK_ULL(63, 0).
This is due to an overflow in the shift operand, 1 << 32 for GENMASK,
1 << 64 for GENMASK_ULL.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Add mdiobus_get_bus() -- a function to get a MDIO bus by its number
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Port bitbanged MDIO framework and gpiolib MDIO bus driver that uses it
from Linux kernel.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move semaphore related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move Linux wait queue related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move mutex related defines to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There's not only HABv4 but also HABv3. No need to put the corresponding
code in separate directories, so rename the habv4 directory to hab.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move spinlock related definitions to its original place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move cond_resched() from barebox-wrapper.h to its original
place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move Linux file system structs from UBIFS to central place.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This implementation is inspired by U-Boot's FIT support. Instead of
using libfdt (which does not exist in barebox), configuration signatures
are verified by using a simplified DT parser based on barebox's own
code.
Currently, only signed configurations with hashed images are supported,
as the other variants are less useful for verified boot. Compatible FIT
images can be created using U-Boot's mkimage tool.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
So long struct bootm_data.verify is a bool which enables CRC checking
(hashing). Extend this to a enum and add support for signature checking
in the same option. This also adds the corresponding globalvar and a
-s option to bootm.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Taken from U-Boot and adopted to barebox with little changes.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In barebox the function digest_alloc() allocates a digest based on a string.
When a subsystem already uses an integer value to identify a digest it makes no
sense to create a string and pass it to digest_alloc(), where it is parsed
again. This patch adds the possibility to get a digest by an enum.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Both the bootm and the boot code initialize the struct bootm_data
with defaults from the bootm global variables. Create a common
function for doing this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The initrd code is distributed in several places in the bootm code.
Move it all together in bootm_load_initrd().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The uImage format uses numbers for to identify the different
parts of a image, but the FIT image format uses names. To better
integrate the FIT image format into bootm always use names and
convert them to numbers when necessary.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ARM do_bootm_linux is not only called with uImages but also with
raw images, so we can't use uimage_get_size() here. Introduce
bootm_get_os_size() which handles the different image types.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds the ability to control barebox over serial lines. The regular
console is designed for human input and is unsuitable for controlling
barebox from scripts since characters can be lost on both ends, the data
stream contains escape sequences and the prompt cannot be easily matched
upon.
This approach is based on the RATP protocol. RATP packages start with a
binary 0x01 which does not occur in normal console data. Whenever a
0x01 character is detected in the console barebox goes into RATP mode.
The RATP packets contain a simple structure with a command/respone
type and data for that type. Currently defined types are:
BB_RATP_TYPE_COMMAND (host->barebox):
Execute a command in the shell
BB_RATP_TYPE_COMMAND_RETURN (barebox->host)
Sends return value of the command back to the host, also means
barebox is ready for the next command
BB_RATP_TYPE_CONSOLEMSG (barebox->host)
Console message from barebox
Planned but not yet implemented are:
BB_RATP_TYPE_PING (host->barebox)
BB_RATP_TYPE_PONG (barebox->host)
For testing purposes
BB_RATP_TYPE_GETENV (host->barebox)
BB_RATP_TYPE_GETENV_RETURN (barebox->host)
Get values of environment variables
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
This patch adds support for Reliable Asynchronous Transfer Protocol (RATP)
as described in RFC916.
Communication over RS232 is often unreliable as characters are lost or
misinterpreted. This protocol allows for a reliable packet based communication
over serial lines.
The implementation simply follows the state machine described in the RFC
text with one exception. RFC916 uses a plain checksum for the
transferred data. We decided to use CRC16 for greater robustness. Since
this is the only RFC916 implementation we currently know of interoperability
with other implementations should not matter.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
printf now supports printing resource_size_t directly, convert
all users of the previously used PRINTF_CONVERSION_RESOURCE over
to %pa.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Future additions will make the function too big to live as a static
inline function. Move to a C file and while at it, move matrix_keypad.h
to include/input/ where it belongs to.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently all input driver register themselves as consoles. Consoles are
fine for typing text, but they do not allow to ask for the current
pressed state of buttons or keypads. They also do not support non
printable keys like the function keys.
This patch adds a simple input core. On the driver side it supports
input_report_key_event() to report events (button presses and releases).
On the consumer side it allows getting the current button status via
input_key_get_status(). Also an event driven interface is available
which calls a callback whenever an input event is received.
The input core also registers a console for all registered input
devices which handles passing events to the console and stuff like key
repetition, so this can be removed from the drivers once they are
converted to the input core.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The async poller does not work as expected since it can happen that
the async poller is removed from the list of pollers while we are
iterating over the list. Even list_for_each_entry_safe does not help
here since we may remove the next list element, but
list_for_each_entry_safe only allows to remove the current list element.
Rework the async poller so that it is registered with the poller
framework on registration and then is only marked as active with
poller_call_async(). This way we do not have to do list manipulations
while running the pollers.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is like of_property_for_each_{string,u32} but loops over a list
of phandles instead of strings or ints.
Returns the node the handle points to as that's generally more useful
than the handle value itself.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The existing iterator for_each_compatible_node() searches for each
compatible node starting from the root of the loaded device tree.
This means it only works on the barebox device tree and not the tree
to be passed to the Linux kernel, which is what an of_fixup would
probably want to use.
This adds for_each_compatible_node_from(), which takes an additional
parameter of a root to search from. This could be the device tree to
be used for the kernel. It could also be used to search just a
subtree.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Various parameters for device names, etc. should be const strings.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The led header use some parts which are missing when include the this
header. This patch adds them.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds support for retrieving the time via Simple Network Time
Protocol (SNTP). No fancy features are supported, only plainly getting
the current time.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Print three-letter abbreviations of the days and months.
With a fixup by Andrey Smirnov:
| common/date.c: Fix off-by-one error
|
| As per http://pubs.opengroup.org/onlinepubs/007908775/xsh/time.h.html
| 'tm_wday' is zero indexed with zero representing Sunday, this is also
| corroborated by the code in rtc_time_to_tm() which used 4 to represent
| Thursday.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds the bitflip check helper functions from the kernel. They are
used to check for bitflips in erased pages and correct them in the
buffer so that UBI can work with it. Unfortunately most nand controllers
do not have ECC for erased pages and don't do this on their own.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In commit 8e3ddc13eb the bootm code was
changed to boot barebox using the same calling convention as the
kernel. Which on ARM is to pass three arguments which are zero, an
architecture code, and a params pointer.
A 2nd stage barebox can be booted using lib/bootstrap, which is
different code from bootm. This code just leaves garbage in the first
three parameters and so doesn't follow the convention.
Change it to be compatible with the ARM kernel booting convention.
This just sends a zero for the architecture, since the code for
architectures depends on boot[zmu] and something using bootstrap
wouldn't have those too. And it just passes NULL for the params since
we don't have a way to pass a device tree from the preloader.
All users of bootstrap are ARM based, but the code is in lib so a
non-ARM board might someday make use of it. If the current code would
work for them, then the change here will be ok too.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
gcc5 warns about using flags uninitialized in spin_lock_irqsave,
although it could look into the static inline spin_lock_irqsave
implementation and see it's not used at all. An empty define instead
of the static inline wrapper would lead to a "unused variable" warning.
Let's create a macro and fake some usage of the flags variable. This
probably helps until gcc6 is out.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
pstore is a persistent storage filesystem used for RAMOOPS. It is used
to store console logs, panics, ftrace and other information in case of a
crash/panic/oops/reboot.
pstore is implemented for barebox as a read-only filesystem at the
moment. It may be extended later on. The idea is to provide a way to
extract essential data from the last running kernel.
Most of the code is copied from the kernel. However this is only a
lightweight implementation without real write support yet.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
reed solomon code is used by RAMOOPS to check and fix data stored in
volatile memory.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There are functions or structs used that do need these.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In commit 104a6a7ccf support was added
for Thumb2. It added do_execute() as a way to provide arch dependent
calling veneers for use in "go" and thumb2_execute() as the thumb2 to
arm veneer.
But thumb2_execute() isn't necessary as gcc generates a proper calling
sequence from a standard function pointer call. Thumb2 barebox is
compiled with the AAPCS ABI which requires this.
It also had a bug and didn't pass the arguments properly, but code
execute via "go" rarely uses arguments so this wasn't very noticeable.
Since thumb2 was always the only user of do_execute(), go ahead and
delete that too.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of writing one word to the txfifo and then wait until
one is received in the rxfifo we can write while the txfifos
are not full and read as long the rxfifos contain data. This
makes transfers for the m25p80 driver around 7 times faster
here.
Unlike the last version this time we only optimize the common
case with 8 bits per word and SPI_LSB_FIRST cleared. The other
cases would require more bit shuffling of the data.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds a simple keystore to barebox. The keystore implements a simple
key-value store to hold arbitrary values.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Explicitly loading environment is not required as it will be loaded if
available during device probing
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds the function of_find_path_by_node(), which is similar to
of_find_path(), but it translates a device tree node into a barebox device path
directly.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is the Microchip version of the Atmel 24c1024, which is already
supported. The key difference between them is that the I2C address
bit used to select between the two banks is bit 2 for the 1025 and not
bit 0 as in the 1024.
Add a flag to describe this difference.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If a device has the reset-gpios property we can support this through
the reset controller API, so drivers do not have to open code the
support for this property each time themselves as done a few dozen times
in the kernel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since we now have dummy reset controllers we no longer need the
*_optional functions. These have been unused anyway, so just remove
them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This imports DT helpers for MTD ECC step size and strength from
Linux kernel.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
commit d00db554 introduce ethaddr_param. But it is not initialized, so
devinfo fails to show the mac. Remove it and use edev->ethaddr.
Signed-off-by: Jan Remmet <j.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Nothing used it.
Also delete the local mci alias pointer to host->mci in
dw_mmc_probe(). It only saved a few characters and all the references
but one are using host->mci.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since there is no OF support in the xloader on socfpga it uses the
platform_data system. There needs to be a way to supply the
equivalent of the DT property bus-width this way to support devices
that need to use a smaller bus.
So that we don't need to put every flag that might get added to the
MMC_CAP list into platform_data, just put the bus width ones into
platform_data.
The socfpga dts sources specify a bus-width of 4 so use that in the
platform_data for socfpga.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The OF code for parsing bus-width would only add the specified width
to those the driver might have already set capability flags for.
Because of this, if the driver had set 8 or 4 bit width, it wasn't
possible for the DT to specify that fewer pins were used on the board
and a smaller width was necessary.
Change this so the width in the DT overrides whatever widths the
driver says it supports. There is no reason to have an incorrect
device tree and it makes far more sense for the DT to override the
driver default than for the driver default to override the DT.
The widths the driver puts in host_caps before calling mci_of_parse()
are considered the default if the DT doesn't specify bus-width. This
should cause the least amount of change to existing boards, as despite
a comment that no bus-width meant to use 1 bit, using the driver
default is what was really happening.
Unfortunately, half of existing drivers default to the largest width
they support while the other half default to the smallest. Boards
should just stick the width in the device tree.
Signed-off-by: Trent Piepho <tpiepho@kymetacorp.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of having a fixed array of fonts register the fonts dynamically.
This allows easier adding of fonts to the tree since only one file per
font has to be added and no other files modified.
Currently we have to register the fonts very early before the first
framebuffer is registered. This is because of our limited
dev_add_param_enum() which wants to know the number of elements when
called, so we can't add elements once after we've called
dev_add_param_enum(). Maybe a dev_add_param_array() has to be created
whithout this limitation, but that's left for a future exercise.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
O_CREAT and O_RWSIZE_8 are both defined as 0100. Fix this by moving the
O_RWSIZE_* flags to unused bits.
This bug leads to incomplete writes when the destination file is created
and mem_write is involved, for example with the memcpy command:
memcpy -s /some/file -d /dev/ram0 0 0 10
In this case only 8 bytes will be copied and it will be done using 8
byte accesses which may not work properly if the destination is not
sufficiently aligned, i.e.:
memcpy -s /some/file -d /dev/ram0 0 1 8
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Often enough the biggest free region spans most free RAM, so
it doesn't add much value to test the remaining free regions. This
patch changes the default behaviour to only test the biggest free
region and adds the -t option to test all regions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The memtest does a bus integrity check and a moving inversions test.
Split the tests into two separate functions so that the can be called
separately.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
remap_range is for remapping regions with different cache attributes.
It is implemented for ARM and PowerPC only, the other architectures only
provide stubs.
Currently the new cache attributes are passed in an architecture specific
way and the attributes have to be retrieved by calls to
mmu_get_pte_cached_flags() and mmu_get_pte_uncached_flags().
Make this simpler by providing architecture independent flags which can
be directly passed to remap_range()
Also provide a MAP_ARCH_DEFAULT flag and a arch_can_remap() function.
The MAP_ARCH_DEFAULT defaults to whatever caching type the architecture
has as default. the arch_can_remap() function returns true if the
architecture can change the cache attributes, false otherwise. This
allows the memtest code to better find out what it has to do.
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>
detect_fs would usually mount a device on a directory,
so, use a device-specific type detection.
Signed-off-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
it's currently only handled through DT and for i.MX25 OTG port (at least),
we need to configure portsc to get host mode working but it actually fails
as ci->phymode is 0 which is USBPHY_INTERFACE_MODE_UNKNOWN
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
putting an error pointer into strerror can be a bit confusing since
strerror takes a positive error code but PTR_ERR returns a negative
number, so we have to do strerror(-PTR_ERR(errp)). Some places got
this wrong already, so introduce a strerrorp function which directly
takes an error pointer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
ndelay is declared in include/clock.h, udelay in include/common.h and
mdelay in include/common.h and include/clock.h. Move them all to
include/clock.h and remove duplicates.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This one is available in the kernel and used by the denali driver
Signed-off-by: Enrico Jorns <ejo@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The host may assume that the usb device is still up and running after
booting if we do not deregister the udc here. I observed issues when the
linux kernel was using a usb gadget directly where the complete USB Hub
got disconnected through this.
This patch adds a proper USB disconnect for gadget devices.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Get a 'struct mci' by search after the device name.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added missing defines for the extended CSD register until standard 5.1.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There is no possibility to read/write to the extended CSD register of
MMC devices from a command. To avoid duplicated driver code, two driver
functions have to be public.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allow drivers to build even if reset source support isn't built in.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allow drivers to build even if WD core isn't enabled.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch is based on
commit 3d6f4a20cc287a8980c6186624834cf10a70752b
Author: David Miller <davem@davemloft.net>
Date: Thu Jul 24 23:38:31 2008 -0700
endian: Always evaluate arguments.
In barebox.git/drivers/usb/core/usb.c,
function usb_parse_config() we have had
le16_to_cpus(&(dev->config.wTotalLength));
which evaluates to "do { } while (0)" on little endian,
so struct usb_configuration field misuse will never
be discovered on little endian.
Therefore, always evaluate the arguments to nop endian
transformation operations.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a device_node member to struct cdev and a function
to find a cdev by device_node.
This also removes the setting of cdev->dev->device_node in
the of partition parser. We must not set the device since it
may not refer to a partition but to a whole device with partitions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Instead of writing one word to the txfifo and then wait until
one is received in the rxfifo we can write until the txfifos
are not full and read as long the rxfifos contain data. This
makes transfers for the m25p80 driver around 7 times faster
here.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The i.MX SPI controller in version 2.3 can immediately start a transfer
when the txfifo is written to. In this mode we no longer have to trigger
the transfer with the xch bit which makes the code a bit simpler.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- make some locally used functions static
- remove read_passwd which is unused
- some refactoring to make code pathes clearer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to have the login functionality in the /env/bin/init script.
This is hard to review and it's too easy to break the login functionality
with changes to this script. Move the places to ask for a password to
C code where we have only a few places where we have to ask for a password.
Mainly these are run_shell() and the menutree command.
This patch introduces a login() function which will only return if the correct
password has been entered. Following calls will return immediately without
asking for a password again.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Different devices may report the reset source with different levels
of certainty. For example a SoC may see a power-on reset, but this
may only be because an external PMIC has power cycled the SoC. This
means the PMIC knows the real reason better and thus the reset reason
from the PMIC should be preferred.
This patch introduces priorities for the reset_source to handle the
above scenario. Also add a of_get_reset_source_priority() function
to retrieve the desired priority from the device tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a dev and name member to struct watchdog which helps distinguishing
between different watchdogs. Also add some debugging aids.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Put watchdogs on a list to allow multiple watchdogs. Add a priority
field to be able to pick the highest priority watchdog.
This patch also provides a of_get_watchdog_priority() function to
allow configuring the watchdog priority from the device tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This replaces the reset_cpu() function which every SoC or board must
provide with registered handlers. This makes it possible to have multiple
reset functions for boards which have multiple ways to reset the machine.
Also boards which have no way at all to reset the machine no longer
have to provide a dummy reset_cpu() function.
The problem this solves is that some machines have external PMICs or
similar to reset the system which have to be preferred over the
internal SoC reset, because the PMIC can reset not only the SoC but also
the external devices.
To pick the right way to reset a machine each handler has a priority. The
default priority is 100 and all currently existing restart handlers are
registered with this priority. of_get_restart_priority() allows to retrieve
the priority from the device tree which makes it possible for boards to
give certain restart handlers a higher priority in order to use this one
instead of the default one.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some SPI NOR flashes support 4K erase blocks. 4K erase blocks do not
work with UBIFS which needs a minimum erase block size of 15360 bytes.
Also bigger sectors are faster to erase. This patch adds a device tree
option to use the bigger blocks instead of the default 4K blocks.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Not only the array containing the pointers should be const but
also the strings themselves, so instead of using const char **
use const char * const *.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
So far we only supported blitting the whole screen from the shadow
fb to the framebuffer. Add a function to blit areas.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The fb core now has builtin support for offscreen rendering, use
this and drop offscreen handling in the gui code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
For speeding up rendering we need shadow framebuffers. This is currently
implemented in the gui functions. This does not work properly when two
users (splash and fbconsole) use the same framebuffer since in this case
two different shadow framebuffers will be used. This patch implements
shadowfb handling in the fb core directly. With this the fb device gets
a parameter 'shadowfb'. When this is true the fb core will allocate a
shadow fb and provide it to the users.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is based on the code introduced to the kernel in
5f9296ba21b3c395e53dd84e7ff9578f97f24295.
Signed-off-by: Jan Luebbe <jluebbe@debian.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Since we no longer have custom gpio function prototypes we can
drop the prototypes from asm-generic/gpio.h can add them to
include/gpio.h instead. While at it add static inline dummy wrappers
for !CONFIG_GENERIC_GPIO so that code using gpios can compile without
gpio support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add empty static inline function fallbacks if backlight support
is not enabled, so that drivers using the backlight don't fail to
build.
Fixes:
In function `simple_panel_ioctl':
undefined reference to `of_backlight_find'
undefined reference to `backlight_set_brightness_default'
undefined reference to `backlight_set_brightness'
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We have functions to setup the i.MX uart for early use, but these all
depend on DEBUG_LL. Move them to imx-uart.h to make them usable for
the regular PBL console.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With more stuff being done in PBL regular console support gets more and more
useful. This makes the PBL console independent of DEBUG_LL which is only
meant for early debugging but not regular output.
To use the regular PBL console a board must call pbl_set_putc() which stores
a pointer to the putc function to be used.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
LoaderTimeInitUSec and LoaderTimeExecUSec are used e.g. in systemd-analyze
to calculate the time spent in the firmare and barebox.
LoaderDevicePartUUID is used to mount the EFI partition to /boot.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch realizes framebuffer console support for barebox. It
supports colors and enough escape sequences to show the barebox
console and editor properly.
fbconsole mini-HOWTO
====================
1. compile sandbox barebox with
CONFIG_VIDEO=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_DRIVER_VIDEO_SDL=y
2. run barebox
3. test fbconsole
fbconsole0.active=oe
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Allocate the screen dynamically in fb_open. This opens the way to create
a fb_create_screen function which takes a struct fb_info * instead of a
filename. This is suitable for the framebuffer console which already has
a struct fb_info *.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The register defines will be used by the SPI xload code, so move
them to a place where the xload code can include them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
get_pixel converts a 32bit trgb color into framebuffer format. This
is useful for other code aswell, so export it.
Other functions in the graphics utils code use the name get/set_pixel
aswell, but instead of converting data they get a pixel from the framebuffer
or set a pixel on the framebuffer. To separate from these rename the
function to gu_hex_to_pixel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---=== SPD EEPROM Information ===---
EEPROM Checksum of bytes 0-62 OK (0xDF)
Total number of bytes in EEPROM 256
Fundamental Memory type DDR2 SDRAM
SPD Revision 1.2
---=== Memory Characteristics ===---
Maximum module speed 800 MHz (PC2-6400)
Size 2048 MB
Banks x Rows x Columns x Bits 8 x 14 x 10 x 64
Ranks 2
SDRAM Device Width 8 bits
Module Height 30.0 mm
Module Type SO-DIMM (67.6 mm)
DRAM Package Planar
Voltage Interface Level SSTL 1.8V
Module Configuration Type No Parity
Refresh Rate Reduced (7.8 us) - Self Refresh
Supported Burst Lengths 4, 8
Supported CAS Latencies (tCL) 6T
tCL-tRCD-tRP-tRAS 6-6-6-18 as DDR2-800
Minimum Cycle Time 2.5 ns at CAS 6
Maximum Access Time 0.40 ns at CAS 6
Maximum Cycle Time (tCK max) 8 ns
---=== Timing Parameters ===---
Address/Command Setup Time Before Clock (tIS) 0.17 ns
Address/Command Hold Time After Clock (tIH) 0.25 ns
Data Input Setup Time Before Strobe (tDS) 0.05 ns
Data Input Hold Time After Strobe (tDH) 0.12 ns
Minimum Row Precharge Delay (tRP) 15.00 ns
Minimum Row Active to Row Active Delay (tRRD) 7.50 ns
Minimum RAS# to CAS# Delay (tRCD) 15.00 ns
Minimum RAS# Pulse Width (tRAS) 45.00 ns
Write Recovery Time (tWR) 15.00 ns
Minimum Write to Read CMD Delay (tWTR) 7.50 ns
Minimum Read to Pre-charge CMD Delay (tRTP) 7.50 ns
Minimum Active to Auto-refresh Delay (tRC) 60.00 ns
Minimum Recovery Delay (tRFC) 127 ns
Maximum DQS to DQ Skew (tDQSQ) 0.20 ns
Maximum Read Data Hold Skew (tQHS) 0.30 ns
---=== Manufacturing Information ===---
Manufacturer JEDEC ID 7f 98 00 00 00 00 00 00
Manufacturing Location Code 0x05
Part Number
Manufacturing Date 2014-W47
Assembly Serial Number 0x43266892
Signed-off-by: Alexander Smirnov <alllecs@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Complex video pipelines are modelled with the of_graph bindings in
the devicetree. This patch adds a ioctl infrastructure to issue
commands to the remote endpoint of a of_graph. Currently defined
ioctls are prepare/unprepare, enable/disable and get_modes. This
is enough to control LVDS or HDMI encoder or simple panels.
A device node which contains of_graph endpoints can be registered
as a VPL entity. An entity can receive ioctls via the .ioctl callback
and also issue ioctls by calling vpl_ioctl. The core itself will never
iterate over the entire pipeline. Instead, the different VPL entities
should forward an ioctl to the next instance in the pipeline whenever
necessary.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
exitcall infrastructure is based on initcall infrastructure.
It allows to have and use exit call hooks on barebox shutdown.
Signed-off-by: Herve Codina <Herve.CODINA@celad.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a framebuffer is kept enabled when Linux starts its framebuffer
memory should be reserved. Otherwise Linux may overwrite its contents.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The most standard update handler will simply copy a file to a device.
This can be shared across several users, so add a standard handler for
this operation.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
register_preset_mac_address only works when CONFIG_PARAMETER
is enabled because otherwise dev_set_param is a no-op. Add a
function to set the MAC address explicitly without the need
of CONFIG_PARAMETER and use it where appropriate.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The mtd concat layer supports concatenating several MTD devices
into a single one. This is nearly as-is from the corresponding
Kernel code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This function is needed for the fixed length string feature in the state
framework.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the parameter to boot from ubifs fileystems. This assumes that
there will be only one UBI device registered in the kernel, otherwise
there is no way to predict the ubi number.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When registering a filesystem device add a device parameter suitable
for the Linux root= option to boot from exactly this filesystem. Currently
the fs layer sets this parameter to the root=PARTUUID= mechanism if a
partuuid is available. Other filesystems like NFS and UBIFS which do
not have a PARTUUID can overwrite this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds the partuuid string to struct cdev in order to have this
available for constructing a suitable Linux root=PARTUUID= option
for booting Linux.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a globalvar string function to pass a pointer to a string.
With this we can directly access the string to get the variable and
don't have to getenv() the string first.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Matching a device node is enough since a device node may have
multiple PWMs. Check for a id aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a small backlight layer. It provides a backlight device
on which the brightness parameter can be used to adjust the brightness.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The code can be used with slight modifications on i.MX28 aswell.
Add a i.MX28 registration function and move the differences to
function callbacks.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to collect all sections beginning with __clk_of_table_ in a single
section in the linker using KEEP(*(.__clk_of_table_*)). That the sentinel
entry ended up as the last entry was pure luck, but not always the case.
Instead of putting all entries in different sections we now put all entries
in the same section. Only the sentinel entry gets its own section and is
collected by the linker separately.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Andreas Willig <andreas.willig@rafi.de>
Tested-by: Andreas Willig <andreas.willig@rafi.de>
Sascha Hauer
Markus Pargmann
Yegor Yefremov
Teresa Remmet
Alexander Kurz
Steffen Trumtrar
Andrey Smirnov
Andrey Gusakov
Jan Luebbe
Trent Piepho
Alexander Aring
Marc Kleine-Budde
Enrico Jorns
Du Huanpeng
Sebastian Hesselbarth
Jan Remmet
Antony Pavlov
Peter Mamonov
Vicente Bergas
Eric Bénard
Daniel Schultz
Lucas Stach
David S. Miller
Jan Luebbe
Michael Olbrich
Alexander Smirnov
Herve Codina
Alexey Galakhov