Marvell Armada 370 and XP have some coherency fabric. We are not
interested in using it, so remove checking for it in mbus driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a driver for SPI master by GPIO pins.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Bitbang helpers for SPI require spidelay. This should be set
by the user and not the helper itself. Move it to ath79_spi
instead.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
A 74x164 shift register can be seen as a SPI attached GPIO expander.
This adds a driver for those poor-man expanders based on the Linux
driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds support for the Marvell 88E1318S Gigabit Ethernet PHY.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds a flags argument to the of_find_path() function. The only flag
defined for now is OF_FIND_PATH_FLAGS_BB. When used on NAND devices, the
function returns the bad block aware device (the ".bb" device).
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch removes the trailing newline "\n" from the ubi/cdev.c debug
messages, as the macro ifself already adds a newine.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix a bug in fpgamgr_program_write_buf() where .rbf file whose length
is not a multiple of 4 would cause an integer overflow which would
result in infinite loop.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With support for deferred probing, we can now relax driver
registration for Marvell Orion GPIO driver from postcore_initcall()
to normal platform_driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Free requested GPIOs on unregistration of mono-, bi-, and tri-color
GPIO leds.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on this linux kernel commit:
commit 0ce4bc1dbdd911ae1763e2d4ff36bd1b214a59f7
Author: Chen-Yu Tsai <wens@csie.org>
Date: Mon Sep 1 22:28:13 2014 +0800
i2c: mv64xxx: continue probe when clock-frequency is missing
The "clock-frequency" DT property is listed as optional, However,
the current code stores the return value of of_property_read_u32 in
the return code of mv64xxx_of_config, but then forgets to clear it
after setting the default value of "clock-frequency". It is then
passed out to the main probe function, resulting in a probe failure
when "clock-frequency" is missing.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch removes the LIST_HEAD of_partition_list and a struct definition from
the code. This was present but unused, since the file was added to barebox.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There should be no reason to ever change the data pointed to by id_table
or of_compatible. So make this offical by adding some 'const's.
In Linux the corresponding pointers are marked as const, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
dev->priv is for private use of the device driver, so do not
use it in the pci core. Instead, introduce a id field in struct
pci_device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
GPIO LEDs can suffer from deferred probing due to failing gpio request.
Instead of registering each gpio led independently, pre-allocate an
array of struct gpio_led for all and tear it down properly if probing
of one leds fails. While at it, silence error messages on -EPROBE_DEFER.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With deferred probing, -EPROBE_DEFER is not worth spilling an error.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
GPIO drivers can be registered quite late in registration process
causing dependant devices to fail probing. If we know gpio_get_num
will be called with a non-NULL device, return -EPROBE_DEFER instead
of -ENODEV to allow re-probing later.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As expected, we would need deferred probing sooner or later. This is
a first approach to allow devices to return -EPROBE_DEFER and get
sorted into a list of deferred devices that will be re-probed later.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When working with non-coherent transfer buffers, we have to sync
device and cpu for outgoing and incoming buffers. Fix the driver where
non-coherent buffers are used in device context.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Winbond W25Q128FVSSI chip is used in Black Swift board,
(see http://www.black-swift.com for details).
Black Swift can run barebox for TP-LINK MR3020.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the code to correctly handle 'cs_change' field in 'struct
spi_transfer'(base on the similar code from altera_spi.c)
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As hinted in the linux kernel driver, pxa platforms such as mainstone,
stargate and idp have a broken design, where half-word writes not
aligned to a word address are not working.
This patch is a taking back the half-word write accessor for this
specific case from the linux kernel.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The configuration and control setup introduced in commit "extend the
driver for 91c94 and 91c96 support" suffers from a typo defect, which
makes the commit broken.
The typo happens to be in barebox tree, while it's not in the tested
patches I had, and there was a mismatch in my former submission, which
is fixed by this patch.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Marvell Neta's transmit descriptor (txdesc) is allocated by dma_alloc_coherent()
but not zeroed before calling mvneta_send the first time. This can cause spurious
transmit errors due to improperly set bits in txdesc's cmd_sts field.
Fix initial transmit errors by always writing whole cmd_sts field instead of ORing
the bits.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Disable the watchdog powerdown counter at start. Otherwise this may
trigger a reset or poweroff over the WDOG_B line to a PMIC. This counter
is set to 16 seconds after poweron.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Replace the set_timeout function in the device platform data by an ops
struct which stores a set_timeout and init function.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit b8a1bb1dd2 (pci: defer device registration until after bridge setup)
changed the activation order of devices, so that bridges above the devices could
be configured properly before activating the devices below. This commit failed
to acknowledge that there may be devices located directly on the root bus without
any bridge in between and so those devices would never get enabled.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
This adds the Intel e1000 driver from U-Boot. The driver looks in parts
quite similar to the kernel driver, I don't know whether one is derived
from the other or if they both just have the same origin.
Many coding style related issues are fixed, the code is simplified in
several places. All features of the original driver should still be there,
only fiber support is disabled since it's quite unlikely that this is
used in barebox.
The driver has been tested with the i.MX6 PCIe driver and a I210 e1000
device (0x8086:0x1533)
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The bch8 romcode was only checked and corrected for the
first 512 bytes of a 2048 byte page. Set interation counter
and eccsizes correct for the different bch types.
Tested OMAP_ECC_BCH8_CODE_HW and OMAP_ECC_BCH8_CODE_HW_ROMCODE.
Reported-by: Gabor Janak <g.janak@agilion.de>
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a watchdog timeout is set in the linux kernel, the FORCE_UPDATE bit is set.
Use this to recognize a system reset that was triggered by the watchdog.
Since only the wdt part of the kernel driver sets this bit, this is a safe
distinguishing feature.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The driver needs the dma coherent function and thus can
only work on architectures implementing them.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fixes:
error: 'clk_register_fractional_divider' undeclared here
introduced with commit 22a0c31c92 (CLK: Add fractional
divider clock support from Linux kernel)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit 03b59bdb64 changed the
return values of dev_add_param_* to ERR_PTR(-ENOSYS) and broke a few boards.
We have now to care about the return value of dev_add_param_bool() in
mci_register().
Also set the ret variable when dev_add_param_bool() fails.
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In devices_shutdown we should call the busses remove function
which in turn calls the drivers remove function. Otherwise for
example PCI devices never get removed since they do not have
a remove function but a pcidev->remove function instead.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The bus implementations currently call the drivers remove
hook unconditionally, but this hook is seldomly populated. Only call
it when it's actually populated.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The active list is supposed to collect active devices in the
opposite order they are probed. This is used to remove the
devices in the correct order in devices_shutdown. The order
is wrong though when in a drivers probe function other devices
are registered. To get the order right we have to add the new
device to the active list before it is probed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the required brackets, so that we don't write unused registers
with potentially bogus values.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds a framework to describe, access, store and restore a set of
variables. A state variable set can be fully described in a devicetree node.
This node could be part of the regular devicetree blob or it could be an extra
devicetree solely for the state. The state variable set contains variables of
different types and a place to store the variable set.
For more information see:
Documentation/devicetree/bindings/barebox/barebox,state.rst
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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>
Simplify PIO mode routines.
Fix a bug when IO is possibly performed twice because of using old
interrupt status.
Support for slow-speed card writes.
Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When a PWM does not have an of alias generate a name from the
base address so that we can register it successfully.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move to the common streaming DMA ops in order to get rid of
the direct usage of the ARM MMU functions for the cache
maintenance.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This better separates the DMA from the MMU functionality.
Also move all drivers that only depends on asm/mmu.h for the alloc
functions over to the common header.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As a lot drivers currently rely on the 1:1 virt->phys mapping on ARM
we define DMA_ADDRESS_BROKEN to mark them. In order to use them on
other architectures with a different mapping they need proper fixing.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows to consolidate the prototype of this function across
architectures. Also guard against calles that pass in NULL as the
dma handle pointer.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
NULL pointers should be treated as dummy clocks as done in the kernel.
Using a not fully filled in clk * array for of_clk_add_provider may result
in NULL clks. When these are passed into the clk framework we should not
crash.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It is required for Rockchip SoCs where clock settings registers have
write-enable mask in high word.
Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It is required for Rockchip SoCs where clock settings registers have
write-enable mask in high word.
Signed-off-by: Andrey Panov <rockford@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for the default-state device tree property.
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows to have fixed device names for the SDMMC
controllers.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
of_alias_get assumed that a DT path is always the full node path,
whic is not necessarily the case, as there are other valid path
descriptions. All of them are handled by of_find_node_by_path.
As there is already a preparsed list with all DT aliases that handles
this case properly we can simply reuse that one.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The cache should be invalidated when transfering ownership of a buffer
to the device. Otherwise the writeback of dirty cache lines can
corrupt the hardware written data.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sebastian Hesselbarth
Marc Kleine-Budde
Andrey Smirnov
Sascha Hauer
Antony Pavlov
Uwe Kleine-König
Robert Jarzmik
Markus Pargmann
Lucas Stach
Teresa Gámez
Steffen Trumtrar
Lucas Stach
Wadim Egorov
Andrey Panov
Hubert Feurstein