| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Unlike barebox, U-Boot's go command doesn't have any provisions
for cache handling and as such, bootstrapping barebox via go can
cause stale data to be erroneously executed as instructions.
The official documentation[1] suggests use of bootm instead, which
does the necessary flushing and invalidation. Update our documentation
accordingly.
[1]: http://www.denx.de/wiki/view/DULG/UBootStandalone#Section_5.12.3.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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There is not CONFIG_OF symbol. We fix this
by using OFDEVICE instead.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Commit 90df2a955e3c ("defaultenv: Convert init script to C")
unintentionally changed the way the legacy "/env/bin/init" script is
run, so that it runs in a sub-shell context, effectively changing
`run_command("source /env/bin/init");` to
`run_command("/env/bin/init");`. Therefore, any changes to shell
environment variables made by the script are undone when the script
exits. This patch reverts back to the old behavior.
Fixes: 90df2a955e3c ("defaultenv: Convert init script to C")
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
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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This machine is powered by a kirkwood processor which needs version 0.
Fixes: 58390878bc30 ("plathome-openblocks-a6: provide a kwbimage.cfg file")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Looks like usb-imx6.c was abandoned and there are no references to
either of the functions difined there. Drop it.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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I can't find any erratas this is in refernce to, but apparently
external changer detector needs to be disabled to prevent poor USB
data signal quality. The problem manifest itself as a intermittent USB
transfer corruption that happens to some device under and only under
specific circumstances.
In my case the failure was observed with Transcent SD/micro-SD card
reader (05e3:0745 Genesys Logic, Inc. Logilink CR0012) when connected
directly to front panel USB of ZII RDU2 board (the problem would go
away if device was conntecte via a hub/USB-analyzer/male-female
type A extender cable).
Note that this fix is present in Linux kernel as well as some
abandoned Barebox code removed in the next patch.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Upstream kernel driver uses stmp_reset_block() to reset the PHY, so
convert the code to do so as well to save some code and sync both
drivers.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Those two line are the only thing that checkpatch is complaining
about. Wrap them to slince it. No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import register definitions from Linux driver to simplify
comparing/sharing code a bit. No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Use NUM_QH, not NUM_TD to specify allocation size.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We use a fixed circular list for asynchronous schedule that never
changes, so if we drop an explicit memset() that zeros out an entire
struct and replace it with code initializine all of the fields
explicitly, we can set QH list once in ehci_init() and never touch it
again.
While at it move qt_altnext initialization to ehci_init() as well
since we never change that field either.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Since ehci->qh_list is an array, convert the code to use
ehci->qh_list[0] to access its first element to make things a bit more
clear. No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Memory allocated by dma_alloc_coherent() is already zeroed out,
ehci->qh_list[0] never changes during the operation of the driver and
ehci->qh_list[1] will be explicitly initialized by ehci_submit_async()
so this additional memset() shouldn't be necessary.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a comment explaining the rationale behinde QT_TOKEN_IOC(req ==
NULL).
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Change the type of 'c' to bool and drop the trigrah.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Neither of those is necessary, since both will be overwritten further
down in the code.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Re-organize the epilogue of ehci_submit_async() to bail out early if
token is still marked as "active" and drop no longer necessary check
for "dev->status != USB_ST_NOT_PROC". While at it return -EIO instead
of -1 in the case of error.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Convert the code to initialize only used qTDs as well as initializing
all of the fields explicitly without doing a wholesale memset() first.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Rework the code of ehci_td_buffer() with following trivial changes:
* Switch to using dma_addr_t for 'delta' and 'next'
* Convert while to for loop
* Replace explicit magic number with dedicated contants derived
via ARRAY_SIZE
* Use ALIGN_DOWN to calculate 'next'
* Return -ENOMEM instead of -1 when we ran out of buffers
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Only two buffers ever need to be sychronized and DMA direction of it
is always known based on the type of request we are
processing. Simplify the code by moving synchronization to be a part
of ehci_prepare_qtd(). While at it convert the code to use
dma_map_single() API.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Move shared struct qTD initialization code into a subroutine and
convert the rest of the code to use it. No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This looks like a leftover from U-Boot. Analogous code there would
walk all qTDs and call ehci_free() on each one of them, but since we
don't have anything of the sort it seems the whole loop can be
dropped. Note that U-Boot dropped that code in
de98e8b22a10676fd226318c92a9be7f519208ca
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import a number of missing macros from U-Boot and convert ehci-hcd to
use them instead of explicitly specifying magic shifts. No functional
change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Since we already set up our last qTD to have IOC flag set we may as
well take advange of that and poll USBSTS to wait for transfer
completion. Doesn't change much, but allows us to drop a custom
polling loop and re-use handshake() instead.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Memory returned by dma_alloc_coherent() should already be zeroed
out, so there's no need to do this explicitly.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a driver working on top of ubootvar device and exposing U-Boot
environment variable data as files.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add a driver to expose U-Boot environment variable data as a single
mmap-able device, hiding various low-level details such as:
* Preamble format differences
* Read/write logic in presence of redundant partition
Not very useful on its own, it is a crucial low-level plumbing needed
by filesystem driver introduced in the following commit.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Cory Tusar <cory.tusar@zii.aero>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Allow specifying cdev's filetype explicitly to support the cases where
the type of a cdev is known apriori, yet cannot be determined by
reading the cdev's content.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The ELF file should have debug symbols, the binary should have no symbols any way.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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There is no intention to commit static firmware to this directory.
If there is a use case, gitignore can be overridden explicitly.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The csfbin files are created during a HABV4 build, ignore them since they
are automatically generated.
Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
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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macros
Use of global labels of the same name inside ENTRY_FUNCTION_END and
STOP_WITH_DEBUG_EVENT prevents simultaneous use of both macros. It also
prevents multiple use of one of them.
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
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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Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Receive buffers are properly synchronized only if Cadence is
GEM. Fix it for MACB as well.
Fixes: 86dc5259e25d (net: macb: no need for coherent memory for receive buffer)
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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clang detects that system char signedness will affect program runtime:
scripts/kwboot.c:395:10: warning: result of comparison of constant 255
with expression of type 'char' is always true
[-Wtautological-constant-out-of-range-compare]
if (*p != 0xff)
~~ ^ ~~~~
Fix this by using uint8_t where appropriate.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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