u-boot.git/arch/powerpc/lib, branch v2011.12

powerpc/bootm: Flush ramdisk and device tree image when booting on MP

2011-12-12T07:17:52+00:00

We already flush the kernel image after we've loaded it to ensure
visiblity to the other cores.  We need to do the same thing for the
ramdisk and device tree images.  In AMP boot scenarios we might not be
HW cache coherent with the secondary core that we are loading and
setting the ramdisk and device tree up for.  Thus we need to ensure
we've flushed the regions of memory utilized by ramdisk and device tree
so the loadding and any modifications (from decompression or fdt updates)
are made visible to the secondary cores.

Signed-off-by: Kumar Gala

powerpc: Minimal private libgcc to build on Debian

2011-12-07T22:04:32+00:00

Standard Debian powerpc and powerpcspe systems only include hard-float
libgcc in their native compilers, which causes scary build warnings when
building U-Boot.

Debian and other PowerPC-supporting distributions used to provide libgcc
and other libraries in a "nof" (soft-float) form in the "multilib"
packages.  As they were completely unused by the distribution and
therefore tended to be very buggy it was decided to save some time on
the part of the maintainers and build-servers by removing them.

Admittedly, right now the linker warnings do not indicate any problems,
as the included routines do not use any floating point at all.

The concern is that if floating-point code were ever added it might
cause hard-float code to be unexpectedly included in U-Boot without
generating a hard error.  This would cause unexplained crashes or
indeterminate results at runtime.

The easiest way to resolve this is to borrow the routines that U-Boot
needs from the Linux kernel, which has the same issue.

Specifically, the routines are: _ashldi3(), _ashrdi3(), and _lshrdi3().
They were borrowed from arch/powerpc/kernel/misc_32.S as of v2.6.38-rc5,
commit 85e2efbb1db9a18d218006706d6e4fbeb0216213, and are GPLv2+.

The Makefile framework was copied from the U-Boot ARM port.

Signed-off-by: Kyle Moffett 
Cc: Wolfgang Denk 
Cc: Kim Phillips 
Cc: Andy Fleming 
Cc: Kumar Gala 
Cc: Stefan Roese

arch/powerpc/lib/bat_rw.c: Fix GCC 4.6 build warning

2011-11-07T21:16:55+00:00

Fix:
bat_rw.c: In function 'write_bat':
bat_rw.c:38:6: warning: variable 'batn' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk 
Cc: Kumar Gala 
Cc: Andy Fleming

arch/powerpc/lib/board.c: fix build warning

2011-11-07T21:09:35+00:00

Fix:
board.c: In function 'board_init_r':
board.c:633:8: warning: unused variable 's' [-Wunused-variable]

Signed-off-by: Wolfgang Denk

arch/powerpc/lib/board.c: make (mostly) checkpatch-clean

2011-11-07T21:09:31+00:00

CodingStyle cleanup.

Accepted (in this cleanup) checkpatch messages:

- externs should be avoided
  (to be cleaned up later)
- no spaces at the start of a line
  (accepted in multi-line #if's)
- Macros with complex values
  (false reports)
- do not use assignment in if condition
  (accepted in one place, where avoiding it would have required an
  additional level of nesting, resulting in less readable code)

Signed-off-by: Wolfgang Denk

arch/powerpc/lib/board.c: fix build warning

2011-11-03T19:37:27+00:00

Commit 1272592 "powerpc: Use getenv_ulong() in place of getenv(),
strtoul" instroduced a build warning for some PPC systems:

board.c: In function 'board_init_r':
board.c:626: warning: unused variable 's'

Fix it.

Signed-off-by: Wolfgang Denk 
Acked-by: Simon Glass 
Acked-by: Heiko Schocher

powerpc: Correct build warning introduced by getenv_ulong() patch

2011-10-24T19:13:15+00:00

Commit 1272592 introduced a warning since the variable 's' is no longer
always used, depending on the CONFIG options.

Signed-off-by: Simon Glass

powerpc/lib/board.c: Call run_post(POST_ROM) before relocating

2011-10-23T21:34:19+00:00

The call to run_post(POST_ROM) which can run the POST memory test
is currently called too late when gd has already been copied to DRAM.

This results in failure to boot Linux after a POST_ROM memory test
tested all RAM while gd was already relocated to DRAM due to gd being
overwritten by the POST_ROM memory test.

Support this by moving the call to run_post(POST_ROM) to run earlier,
before U-Boot has started to move data to DRAM (from late board_init_f
to early board_init_f) where DRAM is initialized, but not used yet.

This allows that an POST memory test can test the whole DRAM,
including the area where the board info struct is located.

Signed-off-by: Bernhard Kaindl 
Cc: Pieter Voorthuijsen

powerpc: Use getenv_ulong() in place of getenv(), strtoul

2011-10-23T21:33:19+00:00

This changes the board code to use the new getenv_ulong() function.

Signed-off-by: Simon Glass 
Acked-by: Stefan Roese

net: drop !NET_MULTI code

2011-10-05T20:22:16+00:00

This is long over due.  All but two net drivers have been converted, but
those have now been dropped.

The only thing left to do is actually delete all references to NET_MULTI
and code that is compiled when that is not defined.  So here we scrub the
core code.

Signed-off-by: Mike Frysinger