Commit graph

33 commits

Author SHA1 Message Date
Joakim Tjernlund
afc3ba0fc4 relocation: Do not relocate NULL pointers.
NULL is an absolute value and should not be relocated.
After this correction code like:
 void weak_fun(void) __attribute__((weak));
 printf("weak_fun:%p\n", weak_fun);
will still print null after relocation.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
2009-10-08 09:33:36 +02:00
Peter Tyser
858290178f ppc: Enable full relocation to RAM
The following changes allow U-Boot to fully relocate from flash to
RAM:
 - Remove linker scripts' .fixup sections from the .text section
 - Add -mrelocatable to PLATFORM_RELFLAGS for all boards
 - Define CONFIG_RELOC_FIXUP_WORKS for all boards

Previously, U-Boot would partially relocate, but statically initialized
pointers needed to be manually relocated.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2009-10-03 10:15:45 +02:00
Trent Piepho
f62fb99941 Fix all linker script to handle all rodata sections
A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
which needs to be added the the linker script.  Instead of just adding this
one section, we use a wildcard ".rodata*" to get all rodata linker section
gcc has now and might add in the future.

However, '*(.rodata*)' by itself will result in sub-optimal section
ordering.  The sections will be sorted by object file, which causes extra
padding between the unaligned rodata.str.1.1 of one object file and the
aligned rodata of the next object file.  This is easy to fix by using the
SORT_BY_ALIGNMENT command.

This patch has not be tested one most of the boards modified.  Some boards
have a linker script that looks something like this:

*(.text)
. = ALIGN(16);
*(.rodata)
*(.rodata.str1.4)
*(.eh_frame)

I change this to:

*(.text)
. = ALIGN(16);
*(.eh_frame)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))

This means the start of rodata will no longer be 16 bytes aligned.
However, the boundary between text and rodata/eh_frame is still aligned to
16 bytes, which is what I think the real purpose of the ALIGN call is.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
2009-03-20 22:39:12 +01:00
Kumar Gala
ff4e66e93c pci: Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY for clarity
The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and
can be confusing when reading the code.

Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used
for system memory mapping purposes.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-02-07 23:50:04 +01:00
Timur Tabi
ecf5f077c8 i2c: merge all i2c_reg_read() and i2c_reg_write() into inline functions
All implementations of the functions i2c_reg_read() and
i2c_reg_write() are identical. We can save space and simplify the
code by converting these functions into inlines and putting them in
i2c.h.

Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-By: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-12-15 23:46:21 +01:00
Peter Tyser
561858ee7d Update U-Boot's build timestamp on every compile
Use the GNU 'date' command to auto-generate a new U-Boot
timestamp on every compile.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2008-12-06 23:36:43 +01:00
Selvamuthukumar
9b827cf172 Align end of bss by 4 bytes
Most of the bss initialization loop increments 4 bytes
at a time. And the loop end is checked for an 'equal'
condition. Make the bss end address aligned by 4, so
that the loop will end as expected.

Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-11-18 23:13:16 +01:00
Ben Warren
a9bec96d63 Moved initialization of MPC8220 FEC to cpu_eth_init()
Removed initialization of the driver from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2008-11-09 21:38:03 -08:00
Wolfgang Denk
8ed44d91c8 Cleanup: fix "MHz" spelling
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-10-21 11:25:39 +02:00
Wolfgang Denk
08ef89ecd1 Use strmhz() to format clock frequencies
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-10-21 11:25:38 +02:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-05-21 00:14:08 +02:00
Jason Wessel
3d36be0300 Remove all the search paths from the .lds files.
The cross compiler is responsible for providing the correct libraries
and the logic to find the linking libraries.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-04-17 23:57:32 -07:00
Wolfgang Denk
e7670f6c1e PPC: Use r2 instead of r29 as global data pointer
R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc
will refuse to use load/store multiple insns; instead, it issues a
list of simple load/store instructions upon function entry and exit,
resulting in bigger code size, which in turn makes the build for a
few boards fail.

Use r2 instead.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-02-14 22:43:22 +01:00
Wolfgang Denk
64134f0112 Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections
With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]

For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.

The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-01-12 20:31:39 +01:00
Grant Likely
139365fbe5 Revert "Correct fixup relocation for mpc8220"
This reverts commit a85dd254c0.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-11-15 08:31:21 -07:00
Jon Loeliger
4431283c7e cpu/m*: Remove obsolete references to CONFIG_COMMANDS
Signed-off-by: Jon Loeliger <jdl@freescale.com>
2007-07-09 19:06:00 -05:00
Grant Likely
a85dd254c0 Correct fixup relocation for mpc8220
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-07-04 01:08:06 +02:00
Grant Likely
9c757b789a Consolidate mpc8220 linker scripts
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-07-04 01:04:27 +02:00
Jon Loeliger
f48070fe5f cpu/mpc*/ : Augment CONFIG_COMMANDS tests with defined(CONFIG_CMD_*).
This is a compatibility step that allows both the older form
and the new form to co-exist for a while until the older can
be removed entirely.

All transformations are of the form:
Before:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
After:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2007-07-04 00:23:18 +02:00
Rafal Jaworowski
02032e8f14 [ppc] Fix build breakage for all non-4xx PowerPC variants.
- adapt to the more generic EXCEPTION_PROLOG and CRIT_EXCEPTION macros
- minor 4xx cleanup
2007-06-22 14:58:04 +02:00
Wolfgang Denk
2b208f5308 Move "ar" flags to config.mk to allow for silent "make -s"
Based on patch by Mike Frysinger, 20 Jun 2006
2006-10-09 01:02:05 +02:00
Wolfgang Denk
f60ba0d35e Fix build problems on sorcery board. 2006-09-04 02:01:27 +02:00
Marian Balakowicz
f93286397e Add support for a saving build objects in a separate directory.
Modifications are based on the linux kernel approach and
support two use cases:

  1) Add O= to the make command line
  'make O=/tmp/build all'

  2) Set environement variable BUILD_DIR to point to the desired location
  'export BUILD_DIR=/tmp/build'
  'make'

The second approach can also be used with a MAKEALL script
'export BUILD_DIR=/tmp/build'
'./MAKEALL'

Command line 'O=' setting overrides BUILD_DIR environent variable.

When none of the above methods is used the local build is performed and
the object files are placed in the source directory.
2006-09-01 19:49:50 +02:00
Wolfgang Denk
d87080b721 GCC-4.x fixes: clean up global data pointer initialization for all boards. 2006-03-31 18:32:53 +02:00
Marian Balakowicz
63ff004c4f Add support for multiple PHYs. 2005-10-28 22:30:33 +02:00
Wolfgang Denk
77ddac9480 Cleanup for GCC-4.x 2005-10-13 16:45:02 +02:00
wdenk
ba91e26a19 Patch by Juergen Selent, 17 May 2005:
Add support for Funkwerk VoVPN gateway module.
2005-05-30 23:55:42 +00:00
wdenk
7680c140af Add PCI support for Sorcery board.
Code cleanup (especially Sorcery / Alaska / Yukon serial driver).
2005-05-16 15:23:22 +00:00
wdenk
3c2b3d454d * Patch by Ladislav Michl, 05 Apr 2005:
Add support for VoiceBlue board.

* Patch by Ladislav Michl, 05 Apr 2005:
  Fix netboot_common() prototypes.

* Cleanup.
2005-04-05 23:32:21 +00:00
wdenk
12b43d515c Add support for MPC8220 based "sorcery" board. 2005-04-05 21:57:18 +00:00
wdenk
e2ffd59b4d * Code cleanup, mostly for GCC-3.3.x
* Cleanup confusing use of CONFIG_ETH*ADDR - ust his only to
  pre-define a MAC address; use CONFIG_HAS_ETH* to enable support for
  additional ethernet addresses.

* Cleanup drivers/i82365.c - avoid duplication of code

* Fix bogus "cannot span across banks" flash error message

* Add support for CompactFlash for the CPC45 Board.
2004-12-31 09:32:47 +00:00
wdenk
983fda8391 Patch by TsiChung Liew, 23 Sep 2004:
- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards
2004-10-28 00:09:35 +00:00