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2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
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>
2010-10-18Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk
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>
2010-04-13arm: Move cpu/$CPU to arch/arm/cpu/$CPUPeter Tyser
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-03-07edb93xx: Fix SDRAM initializationMatthias Kaehlcke
edb93xx: Fix SDRAM initialization by issuing a precharge all command before forcing the precharge and select mode register update mode before programming the mode registers. Write to the SDRAM banks in order to force a precharge, reading causes the edb93xx boards to hang Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
2010-02-12edb93xx: enable the uart in devicecfg registerAlessandro Rubini
printf goes to uart1, but it will block forever waiting for busy to go off unless the uart is enabled first. Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
2010-02-12edb93xx: change calculation un early_udelay.hAlessandro Rubini
Previous code compiled with gcc-4.2.2 makes a call to __aeabi_uidiv to divide by 20. As a side effect it was not inline any more, and so sdram_cfg used the stack as well, but this is early code that has no stack yet. The patch explicitly removes the division, so no stack is used. The calculation of the counter calls a division by 20 Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
2010-02-12Add support for EDB93xx boardsMatthias Kaehlcke
Added support for the following EDB93xx boards: EDB9301 EDB9302 EDB9302A EDB9307 EDB9307A EDB93012 EDB9315 EDB9315A Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>