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Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
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The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.
Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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Also, remove all calls to eth_init() in boards that use MACB
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
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Configuration defines should be preceeded with CONFIG_SYS_. Renamed
some at91 specific defines to conform to this naming convention:
AT91_CPU_NAME to CONFIG_SYS_AT91_CPU_NAME
AT91_MAIN_CLOCK to CONFIG_SYS_AT91_MAIN_CLOCK
Signed-off-by: Achim Ehrlich <aehrlich@taskit.de>
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* convert at91sam9263ek board to use c stucture SoC access
* change gpio access to at91_gpio syntax
Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
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On the boards at91sam9260ek, at91sam9263ek and afed9260, the rstc register was
set to 0 after being set to 500 ms for the PHY reset.
Do backup the old reset length and restore it after the MACB initialisation.
Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: Stelian Pop <stelian@popies.net>
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the lowlevel init sequence is the same so unify it
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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this will allow you to store use it for the env and to boot directly U-Boot from
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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calculate dynamically the clock rate and pllb setting for usb
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Introduce AT91_CPU_CLOCK and use it for displaying the CPU
speed in the LCD driver.
Also make AT91_MAIN_CLOCK and AT91_MASTER_CLOCK reflect the
corresponding board clocks.
Signed-off-by: Stelian Pop <stelian@popies.net>
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AT91_BASE_EMAC is never used outside the board specific files,
so replace its usage by the board specific AT91xxx_BASE_EMAC.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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AT91_ID_US0 / AT91_ID_US1 / AT91_ID_US2 were used but never defined.
Since they are never used outside the board specific files, they can
be replaced by the board specific AT91xxx_ID_US0 / AT91xxx_ID_US1 /
AT91xxx_ID_US2.
Bug spotted by Jesus Alvarez <jalvarez@micromint.com>.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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The information displayed when CONFIG_LCD_INFO is set is inherently
board-specific, so it should be done by the board code. The current code
dealing with this only handles two cases, and is already a horrible mess
of #ifdeffery.
Yes, this duplicates some code, but it also allows boards to print more
board-specific information; this used to be very difficult.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Removed at91sam9_eth_initialize() from net/eth.c
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
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Signed-off-by: Scott Wood <scottwood@freescale.com>
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Fix NAND FLASH timings for at91sam9x evaluation kits.
New timings are based on application note
"NAND Flash Support on AT91SAM9 Microcontrollers" available at
http://atmel.com/dyn/resources/prod_documents/doc6255.pdf
Signed-off-by: Patrice Vilchez <patice.vilchez@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Stelian Pop <stelian@popies.net>
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AT91 RSTC registers are battery-backuped, so their values
are not reset across power cycles. One of those registers,
the AT91_RSTC_MR register, is being modified by U-Boot, in
the ethernet initialisation routine, to generate a 500ms
user reset.
Unfortunately, this value is not being restored afterwards,
causing subsequent resets to also last for 500ms.
This long reset sequence causes problems (at least) in the
boot sequence from NOR: by the time the CPU tries to load
a program from the NOR flash, the latter is still in reset
and not yet available.
Additionaly, this patch fixes a bug in the original code which
caused the reset delay to last for 2s instead of 500ms.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Wolfgang Denk <wd@denx.de>
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This patch makes the necessary adaptations (PIO configurations and
defines in config header file) to hook up the Atmel LCD driver to the
AT91SAM9263EK board.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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This patch adds support for the AT91SAM9263 chip and the AT91SAM9263EK
board.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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