u-boot.git/arch/nios2/cpu, branch v2011.12

nios2: Offer ft_board_setup() capability and call fdt_fixup_ethernet().

2011-10-30T13:02:43+00:00

The main motivation is, to have the local-mac-address property of the
ethernet peripherals fixed/synced with U-Boot's environment settings.

Signed-off-by: Joachim Foerster 
Signed-off-by: Thomas Chou

nios2: Pseudo implement dcache_status/enable/disable()

2011-10-28T01:50:13+00:00

AFAIK the NIOS2 architecture does not have any possibility to
dynamically switch off the data cache. So _status() always reports 1 and
_enable/_disable() just issue a flush of everything.

For example, common/cmd_elf.c depends on these symbols.

Signed-off-by: Joachim Foerster 
Signed-off-by: Thomas Chou

unify version_string

2011-07-28T15:22:53+00:00

This patch removes the architecture specific implementation of
version_string where possible. Some architectures use a special place
and therefore we provide U_BOOT_VERSION_STRING definition and a common
weak symbol version_string.

Signed-off-by: Andreas Bie�mann 
CC: Mike Frysinger 
CC: Peter Pan 
Acked-by: Mike Frysinger

Timer: Remove set_timer completely

2011-07-26T12:52:17+00:00

rename _end to __bss_end__

2011-03-27T17:18:37+00:00

Currently, _end is used for end of BSS section.  We want _end to mean
end of u-boot image, so we rename _end to __bss_end__ first.

Signed-off-by: Po-Yu Chuang

Remove redundant config.mk files

2010-12-09T09:25:56+00:00

Recent cleanup actions resulted in a number of config.mk files that
contained only redundant entries like

	PLATFORM_CPPFLAGS += -I$(TOPDIR)

or settings of variables that were not used anywhere in the code, like

	TEXT_END  = 0xfe080000

Remove these unnecessary files.

Signed-off-by: Wolfgang Denk 
Cc: Scott McNutt 
Cc: Wolfgang Wegner 
Cc: Josef Wagner 
Cc: Tolunay Orkun 
Cc: Frank Panno 
Cc: Heiko Schocher 
Cc: Brad Kemp 
Acked-by: Heiko Schocher

do_reset: unify duplicate prototypes

2010-11-28T20:47:24+00:00

The duplication of the do_reset prototype has gotten out of hand,
and they're not all in sync.  Unify them all in command.h.

Signed-off-by: Mike Frysinger

Switch from archive libraries to partial linking

2010-11-17T20:02:18+00:00

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

Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value

2010-10-26T19:05:30+00:00

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  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 
Acked-by: Kumar Gala

nios2: fix out of reach case for do_reset

2010-08-20T02:15:49+00:00

There is a limitation (or bug?) of nios2 toolchain. The nios2 gcc
didn't generate correct code when the reset vector is passed as a
constant. It just generated a direct "call", which was wrong when
the reset vector was not located in the same 256MB span as u-boot.

The "Nios II Processor Reference Handbook" said,
"call can transfer execution anywhere within the 256 MByte range
determined by PC31..28. The Nios II GNU linker does not automatically
handle cases in which the address is out of this range."

So we have to use registered "callr" instruction to do the job.

Signed-off-by: Thomas Chou 
Signed-off-by: Scott McNutt