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This reverts commit 1b4a05c9263ae26083526acfabdea1ef96531a1d.
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According to the Errata ERR004346 (WDOG: WDOG SRS bit requires to be written
twice), add another two writes to ensure there must be at least two
writes happen in the same one 32kHz clock period.
Without this two additional writes, the system will not reset always.
Tested with i.MX6Quad and i.MX6 UltraLite
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Consoles need to be registered with the "console" device name so that
they are probed by the correct driver. The barebox_register_console()
was already forcing this as it was overwriting the name that was being
passed as argument, but it was failing to provide a unique id for
each new console, so the underlying register_device() would just
return an error when wanting to re-register a device with device name
"console" and id 0.
We remove the unused name parameter from barebox_register_console() as
it is really nowhere used, and also specify DEVICE_ID_DYNAMIC as id,
so that a new unique device id is given to each newly registered
console device.
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Fixes: bbe0df90b8e2463dd8db651e9f1dd57702985d2d
I assumed all chipidea devices actually have a clock. This is true
when looking at the device tree, but in barebox not all i.MX SoCs
use the clocks provided by the device tree. Most instead use
clkdev_add_physbase() to attach a clocks to devices. For these the
chipidea device does not have a clock.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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DRIVER_VIDEO_IMX_IPUV3 selects VIDEO_VPL, which has a hard dependency
on OFTREE, so it is required to select this one, too.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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mtdraw_raw_to_mtd_offset() is only used from mtdraw_erase(), so will
only be referenced when MTD write support is enabled. This fixes a
harmless warning.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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When a cdev is a mtd device the partition offset must be used from
there, not from the cdev.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Arria10 has a (slightly) different clock controller than the
Cyclone5. Add new drivers for it.
This driver only reads out the setup and builds the clocktree,
it does not setup any clocks.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This compatible will be needed for Arria10.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Prepare for Arria10 clock driver.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Prepare the SoCFPGA code base for different system types
(Arria10, Stratix10,...).
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Similar to the device parameter functions also make the globalvar
functions more consistent. This also adds support for readonly
globalvars and changes several existing globalvars which should
really be readonly to readonly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This patch creates a consitent set of device parameter functions.
With this we have: dev_add_param_<type><access>
"type" is one of: int32, uint32, int64, uint64, string, mac, ipv4, enum, bitmask
The improvement here is that we now can exactly specify the width of the
int type parameters and also correctly distinguish between signed and
unsigned variables which means that a variable no longer ends up with
INT_MAX when it's assigned -1.
"access" can be empty for regular read/write parameter, "_ro" for readonly
parameters which get their value from a variable pointer in the
background or "_fixed" for parameters which are set to a fixed value
(without a pointer in the background).
Some more exotic types are not (yet) implemented, like
dev_add_param_ip_ro.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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dev_add_param_string allows to pass a priv * so that the device_d *
argument is not needed and can be removed later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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dev_add_param_enum allows to pass a priv * so that the device_d *
argument is not needed and can be removed later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds a driver for the SDHCI controller found on Marvell Dove SoCs.
Despite a missing pinctrl driver, corresponding MPP config has to be
set on a per board basis.
This driver was succesfully tested with Solidrun Dove Cubox.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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If configured or default bus-width is wrong for the current hardware,
registration of card/emmc is likely to fail. This patch adds more verbosity
in the case of a failed detection:
| omap-hsmmc 48060000.mmc: registered as 48060000.mmc
| mmc0: detected MMC card version 4.41
| mmc0: Changing MMC bus width failed: -110
| mmc0: Card's startup fails with -110
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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At the moment of_new_property() uses xfunctions for memory
allocation so we can use xstrdup() instead of strdup()
for code simplification.
A side effect of this commmit is that
the of_new_property() function can't return NULL
anymore if CONFIG_OFTREE is set.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The of_new_property() function already has functionality
to copy data into of_property so we can make
of_property_write_u8_array() simpler.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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iterate over the different property names rather than having
the same code three times.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Use of_property_read_bool where boolean properties are read.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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After we have copied the data to its final destination there is
no need to keep the temporary file around. Remove it when done
with it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add the USB physbase clock entry for i.MX50 SoC to enable USB device
creation via DT.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Upstream devicetree bindings where changed to use "cdns,is-decoded-cs"
instead of "external-decoder". Use it.
Also, get rid of the clock-names "qspi_clk" dependency.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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BCH error detection and correction was only looking at the first
of four syndrome polynomials, which meant it was failing to detect
and correct bitflips in the last 3/4 of the data. In effect, only
the first 512 bytes of a 2048 byte page were being protected by ECC.
The syndrome polynomials (BCH error codes) are stored in the NAND's
OOB, each of which protects 512 bytes of data. The driver used
eccsteps = 1 which effectively made it only use the first polynomial,
and therefore was only protecting the first 512 bytes of the page.
The fix is to pull over a bit of code from the kernel's
omap_correct_data() that sets eccsteps = 4 when the page size is 2048
bytes and hardware ECC is being used.
Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Fixes: a2fa18f9f483 (mtd: of: Make used partition binding configurable)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This driver performs the required initialization to get the GPU
into a functional state, so it can be used when the OS is running.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The caller of state_new_from_node() may have it's own ideas what to
do when loading the state fails, so do not load it in the initialization
function, but instead let the caller do it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We already have of_find_path_by_node() which finds a device path
for a given device node. This is used by the state framework to
find its backend path. This path has to be translated back to
a device node when Linux is started. The current approach turned
out to be too simple: We assumed that the node path is the same
in the tree Linux is started with. This is not true in several
cases:
- partition nodes should have the name "partition@<offset>", but
in several trees they have "partition@<num>"
- There are two different partition bindings: The legacy binding
and the new one with an additional partitions subnode which has
a compatible = "fixed-partitions" property.
The node path only stays the same when the internal tree uses the
same bindings and node names as the tree Linux is started with.
To overcome this limitation we create of_find_node_by_devpath()
which converts the device path back to a device node. It does
so by finding the device node of the hardware device rather than
the partition node. It then parses over the partitions in this
device node with the known bindings looking for a partition which
matches in offset and size to the barebox partition.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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at24, at25 and mci core are using of_parse_partitions(). Register the
fixup for them aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We are going to call the of_partition_fixup for regular block
devices like MMC/SD aswell. Add a flag to partitions indicating
they are instanciated from a on-disk partition table so that they
won't be added as device tree partitions during fixup.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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With the legacy partition binding we did not modify the device
node when no partition exist, but with the new binding we would
create the "partitions" node with compatible = "fixed-partitions".
Prevent that by catching the absence of partitions early.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Instead of having a flag indicating a cdev is a partition on
some master cdev, just add a master pointer to the cdev, so
that we can also find out who the master is.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The of partition parser is not only used for mtd device, but also
for regular block devices, so make the of_mtd_fixup code independent
of mtd devices also, so that other devices can be fixed up, too.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Do not assume that #address-cells and #size-cells are
both 1. Parse them appropriately to support devices
> 4GuB.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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So far we used the legacy partition binding when fixing up the
mtd partition nodes. Change this to default to the new binding
with a "partitions" submode. Make this behaviour configurable
though: This creates a new of_binding device variable for
mtd devices. This can be set to:
- "new": Use the new partition binding (default)
- "legacy": Use the old partition binding
- "donttouch": Do not touch the partition node
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Move the fixup code where the parser code is already.
Since the code will not only be used for mtd in the future
drivers/of/ is a better place than drivers/mtd/.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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