Commit graph

8 commits

Author SHA1 Message Date
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
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>
2010-11-17 21:02:18 +01:00
Wolfgang Denk
25ddd1fb0a Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:05:30 +02:00
Wolfgang Denk
2ae1824196 Makefile: move all Power Architecture boards into boards.cfg
Clean up Makefile, and drop a lot of the config.mk files on the way.

We now also automatically pick all boards that are listed in
boards.cfg (and with all configurations), so we can drop the redundant
entries from MAKEALL to avoid building these twice.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-10-18 22:12:04 +02:00
Wolfgang Denk
14d0a02a16 Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE
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>
2010-10-18 22:07:10 +02:00
Stefan Roese
0988776288 ppc4xx: Move gpio.h to ppc4xx-gpio.h since its ppc4xx specific
Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
b36df56115 ppc4xx: Move ppc4xx headers to powerpc include directory
This patch moves some ppc4xx related headers from the common include
directory (include/) to the powerpc specific one
(arch/powerpc/include/asm/). This way to common include directory is not
so cluttered with files.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
5bf39a96c2 ppc4xx: T3CORP fixes and updates
This patch fixes some problems for the T3CORP board. Here the list
of the changes:

- Add 600-67 and 677 CPU frequency setting to chip_config
  command
- Define CONFIG_DDR_RFDC_FIXED on t3corp:
  While using the "normal" auto calibration code, sometimes values for
  RFDC were picked (>= T3) that resulted in a non-working U-Boot (hang
  upon relocation, while running from SDRAM). With this optimized RFDC
  value we can force this register and use the auto-calibration code to
  setup the remaining calibration registers.
- Increase sizes of FPGA chips selects
- EBC timing updated OEN=3 for 66 MHz EBC speed
- Change ext. IRQ2 setup to level-low active
- Enable CONFIG_SYS_CFI_FLASH_STATUS_POLL

By defining CONFIG_SYS_CFI_FLASH_STATUS_POLL, DQ7 is polled to detect the
chip busy status. This is now used instead of the data toggle method which
is used historically by default in the common CFI driver. With this change
a problem with not written data is solved on this board, where a 32 byte
block of data is still erased instead of filled with the correct content
after these commands:

=> erase 0xfc100000 +0x1000000

....................................................................
done
Erased 128 sectors
=> cp.b 0x100000 0xfc100000 0x1000000
Copy to Flash... done
=> cmp.b 0x100000 0xfc100000 0x1000000
byte at 0x00d0d6c0 (0x00) != byte at 0xfcd0d6c0 (0xff)
Total of 12637888 bytes were the same

Signed-off-by: Stefan Roese <sr@denx.de>
2010-07-23 09:53:48 +02:00
Stefan Roese
273ed0370d ppc4xx: Add T3COPR board support (PPC460GT based)
This patch adds support for the T3CORP board, based on the
AppliedMicro (APM) PPC460GT.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-07-01 10:26:30 +02:00