u-boot.git/arch/arm/cpu, branch v2012.04

ARM926EJS: Fix cache.c to comply with checkpatch.pl

2012-04-16T20:12:01+00:00

Signed-off-by: Marek Vasut 
Cc: Stefano Babic 
Cc: Albert ARIBAUD

ARM926EJS: Make asm routines volatile in cache ops

2012-04-16T20:11:57+00:00

We certainly don't want the compiler to reorganise the code for dcache flushing.

Signed-off-by: Marek Vasut 
Cc: Stefano Babic 
Cc: Albert ARIBAUD 
Acked-by: Mike Frysinger 
Acked-by: Stefano Babic

ARM1136: MX35: Make asm routines volatile in cache ops

2012-04-16T12:53:59+00:00

As well as pushed for ARM926EJS, we certainly don't want
the compiler to reorganise the code for dcache flushing
Fix checkpatch warnings as well.

Signed-off-by: Stefano Babic 
CC: Marek Vasut 
CC: Albert Aribaud

ARM: add u-boot.imx as target for i.MX SOCs

2012-04-16T12:53:59+00:00

Freescale SOCs require an header to u-boot.bin

The patch adds u-boot.imx to the default targets
if the imx file is set (IMX_CONFIG).

Signed-off-by: Stefano Babic 
Cc: Albert ARIBAUD 
CC: Loïc Minier 
CC: Mike Frysinger 
Acked-by: Mike Frysinger 
Acked-by: Dirk Behme 
Tested-by: Dirk Behme

DMA: Split the APBH DMA init into block and channel init

2012-04-16T12:53:59+00:00

This fixes the issue where mxs_dma_init() was called either twice or never,
without introducing any new init hooks.

The idea is to allow each and every device using the APBH DMA block to
configure and request only the channels it uses, instead of making it call init
for all the channels as is now.

The common DMA block init part, which only configures the block, is then called
from CPUs arch_cpu_init() call.

NOTE: This patch depends on:

	http://patchwork.ozlabs.org/patch/150957/

Signed-off-by: Marek Vasut 
Cc: Stefano Babic 
Cc: Wolfgang Denk 
Cc: Detlev Zundel 
Cc: Fabio Estevam 
Tested-by: Fabio Estevam

ARM: 926ejs: use debug() for misaligned addresses

2012-04-16T12:53:59+00:00

Misaligned warnings are useful to debug faulty drivers.
A misaligned warning is printed also when the driver
is correct - use debug() instead of printf().

Signed-off-by: Stefano Babic 
CC: Albert Aribaud 
CC: Mike Frysinger 
CC: Marek Vasut 
Acked-by: Marek Vasut

ARM1136: add cache flush and invalidate operations

2012-04-16T12:53:58+00:00

Since commit 5c1ad3e6f8ae578bbe30e09652f1531e9bc22031
(net: fec_mxc: allow use with cache enabled) the FEC_MXC
driver uses flush_dcache_range() and invalidate_dcache_range()
functions. This driver is also configured for ARM1136 based
'flea3' and 'mx35pdk' boards which currently do not build
as there are no ARM1136 specific flush_dcache_range() and
invalidate_dcache_range() functions. Add various ARM1136
cache functions to fix building for 'flea3' and 'mx35pdk'.

Signed-off-by: Anatolij Gustschin 
Signed-off-by: Stefano Babic 
Cc: Fabio Estevam 
CC: Mike Frysinger 
CC: Marek Vasut 
Acked-by: Marek Vasut

i.MX6: implement enable_caches()

2012-04-16T12:53:58+00:00

disabled by default until drivers are fixed

Signed-off-by: Eric Nelson 
Acked-by: Marek Vasut

arm: Use common .lds file where possible

2012-03-30T05:43:47+00:00

Each cpu directory currently has its own .lds file. This is only needed
in most cases because the start.o file is in a different subdir.

Now that we can factor out this difference, we can move most cpus over
to the common .lds file.

Signed-off-by: Simon Glass

arm: add a common .lds link script

2012-03-30T05:43:44+00:00

Most ARM CPUs use a very similar link script. This adds a basic
script that can be used by most CPUs.

Two new symbols are introduced which are intended to eventually be
defined on all architectures to make things easier for generic relocation
and reduce special-case code for each architecture:

__image_copy_start is the start of the text area (equivalent to the
existing _start on ARM). It marks the start of the region which must be
copied to a new location during relocation. This symbol is called
__text_start on x86 and microblaze.

__image_copy_end is the end of the region which must be copied to a new
location during relocation. It is normally equal to the start of the BSS
region, but this can vary in some cases (SPL?). Making this an explicit
symbol on its own removes any ambiguity and permits common code to always
do the right thing.

This new script makes use of CPUDIR, now defined by both Makefile and
spl/Makefile, to find the directory containing the start.o object file,
which is always placed first in the image.

To permit MMU setup prior to relocation (as used by pxa) we add an area
to the link script which contains space for this. This is taken
from commit 7f4cfcf. CPUs can put the contents in there using their
start.S file. BTW, shouldn't that area be 16KB-aligned?

Signed-off-by: Simon Glass