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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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Use ENTRY_FUNCTION_HEAD in the at91 boards to customize the barebox
image header without having to hook into a generic include file.
Link: https://lore.barebox.org/20230302111606.1054037-4-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Most at91 boards are not safe for multiimage support. We can however
switch their compilation to the multiimage way which allows us to get
rid of some legacy cruft in the longer run.
Link: https://lore.barebox.org/20230228143031.1718565-8-s.hauer@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Instead of adding missing definitions to the existing at91sam9_ddrsdr.h
and adapting the incoming DDRAM initialization code from at91bootstrap,
just replace the lightly used existing header with:
https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/include/arch/at91_ddrsdrc.h
For easier comprehension, the replacement is done in three steps:
This last step copies the memory size querying functions from at91sam9_ddrsdr.h
to at91_ddrsdrc.h, then deletes it and fixes all references.
Reviewed-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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Most callers of arm_setup_stack substract a fixed offset of 8, 12 or 16
bytes from the stack top. This is unnecessary as on ARM we have a stack
that decrements before storing values. Substracting this offset probably
goes back to the U-Boot version we forked from. Stop this now.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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barebox_arm_reset_vector() is a global function but we never provided a
prototype anywhere. The prototypes differ for the different boards, so
to provide a common prototype we must harmonize them.
void barebox_arm_reset_vector(uint32_t r0, uint32_t r1, uint32_t r2)
Should be suitable for all boards.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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These three board share the same at91sam9g45_lowlevel_init.c file.
Introduce lowlevel.c file for the boards that contains the reset vector.
Delete the now unused at91sam9g45_lowlevel_init.c file
Drop unused CONFIG symbols and Makefile references
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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