| Commit message (Collapse) | Author | Age | Files | Lines |
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Syncing device trees with Linux upstream can lead to breakage, when
the device trees are switched to newer bindings, which are not yet
supported in barebox. To make it easier to spot such issues, we want to
start applying some heuristics to flag possibly problematic DT changes.
One step towards being able to do that is to know what nodes barebox
actually consumes. Most of the nodes have a compatible entry, which is
matched by an array of of_device_id, so let's have MODULE_DEVICE_TABLE
point at it for future extraction.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20230612125908.1087340-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Currently arch specific headers can be included with
longer possible as there won't be a single mach anymore.
Move all at91 specific header files to include/mach/at91/ to
prepare for multi-arch support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The '_d' suffix was originally meant to distinguish barebox struct
names from Linux struct names. struct driver doesn't exist in Linux,
so we can rename it and remove the meaningless suffix.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The '_d' suffix was originally introduced in case we want to import
Linux struct device as a separate struct into barebox. Over time it
became clear that this won't happen, instead barebox struct device_d
is basically the same as Linux struct device. Rename the struct name
accordingly to make porting Linux code easier.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Most barebox clocksources have a zero priority and if multiple of them
exist, but no higher priority ones, the first to call init_clock wins.
Some supported boards like the Raspberry Pi additionally depended on
initcall ordering to favor one zero-priority clocksource over another.
With the move to deep probe and with Commit b641580deb8c ("of: platform:
Ensure timers are probed early"), device tree blob iteration order could
now dictate which clocksource is ultimately used. This led to a 20 times
slower clock source being chosen on the Raspberry Pi, because the ARM
architected timer was taken instead of the bcm2835 timer.
Fix the root cause by assigning priorities to all clocksource drivers.
Priorities chosen are:
50: device_initcall
60: coredevice_initcall
70: postcore_initcall
80: core_initcall
These priorities are all below 100, which was previously the lowest
positive priority and as they are positive, they win against the dummy
clocksource. This should ensure no priority inversion happens.
Fixes: b641580deb8c ("of: platform: Ensure timers are probed early")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20220425094857.674044-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds the suitable SPDX-License-Identifier to all files in drivers/
that previously lacked one.
To aid manual inspection, following heuristics can be used:
* No changes outside of comments/whitespace:
git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)'
* -or-later come in pairs:
git show --inter-hunk-context=19 HEAD | \
perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }'
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We have several macros for a oneline driver registration. Add some
missing and use them consistently where possible througout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Use the potentially endianness-changing readl, writel and siblings
directly. They looks prettier and are the correct thing to do, as
even if the CPU is in big-endian mode, the peripherals are little-endian.
Unlike Linux, barebox readl,writel are the same Linux'
{readl,writel}_relaxed (they don't imply memory barriers)
and thus there shouldn't be any functional change.
Patch was generated by a mass search and replace. I looked it over,
adjust some whitespace and further verified by reviewing the output of
git diff HEAD~1 --word-diff | \
perl -pe 's/\[-(.*?)__raw_/{+$1/; s/-\]\{\+/+}{+/;' \
-e 's/(\{\+.*?\+\})\1/__ALL_IS_WELL__/' | grep '+}{+'
which filters out the common case of lines where a single
__raw_{readT,writeT} had its __raw_ prefix stripped without any
further changes.
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
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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Remove at91_sys_read() and at91_sys_write() since these are no longer
used. This makes mach/io.h empty so remove that aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Move PIT driver code to 'drivers/clocsource' and accomodate it by
adjusting Kconfig variables. Rename the file to 'timer-atmel-pit.c' to
re-align the driver with code in Linux kernel.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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