Commit graph

19 commits

Author SHA1 Message Date
Graeme Russ
880c59e5ad eNET: Implement eNET Watchdog
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:20:04 +02:00
Graeme Russ
4a4c31ae08 eNET: Add PC/AT compatibility setup function
The eNET uses the sc520 software timers rather than the PC/AT clones

Set all interrupts and timers up to be PC/AT compatible

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:19:19 +02:00
Graeme Russ
8fd805632f eNET: Add support for onboard RTL8100B (RTL8139) chips
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:19:12 +02:00
Graeme Russ
21e67e796b sc520: Board Specific PCI Init
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:18:52 +02:00
Graeme Russ
bf16500f79 x86: Use CONFIG_SERIAL_MULTI
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:16:46 +02:00
Graeme Russ
077e1958ca x86: Add RAM bootstrap functionality
Add a parameter to the 32-bit entry to indicate if entry is from Real
Mode or not. If entry is from Real Mode, execute the destructive 'sizer'
routine to determine memory size as we are booting cold and running in
Flash. If not entering from Real Mode, we are executing a U-Boot image
from RAM and therefore the memory size is already known (and running
'sizer' will destroy the running image)

There are now two 32-bit entry points. The first is the 'in RAM' entry
point which exists at the start of the U-Boot binary image. As such,
you can load u-boot.bin in RAM and jump directly to the load address
without needing to calculate any offsets. The second entry point is
used by the real-to-protected mode switch

This patch also changes TEXT_BASE to 0x6000000 (in RAM). You can load
the resulting image at 0x6000000 and simple go 0x6000000 from the u-boot
prompt

Hopefully a later patch will completely elliminate any dependency on
TEXT_BASE like a relocatable linux kernel (perfect world)

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:15:31 +02:00
Graeme Russ
64a0a4995e x86: Fix MMCR Access
Change sc520 MMCR Access to use memory accessor functions

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2010-05-06 00:13:48 +02:00
Peter Tyser
89f39e177e Change directory-specific CFLAGS to use full path
Previously, a specific file or directory could be compiled with custom
CFLAGS by adding a Makefile variable such as:
  CFLAGS_dlmalloc.o = <custom flags for common/dlmalloc.c>
or
  CFLAGS_lib = <custom flags for lib directory>

This method breaks down once multiple files or directories share the
same path.  Eg FLAGS_fileA = <custom flags> would incorrectly result in
both dir1/fileA.c and dir2/fileA.c being compiled with <custom flags>.

This change allows finer grained control which we need once we move
lib_$ARCH to arch/$ARCH/lib/ and lib_generic/ to lib/.  Without this
change all lib/ directories would share the same custom CFLAGS.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:00 +02:00
Graeme Russ
1c409bc710 i386: Final Relocation
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-12-05 01:05:39 +01:00
Graeme Russ
0fc1b49ecb i386: Remove inline asm symbols from .dynsym
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-12-05 01:04:44 +01:00
Graeme Russ
aea14421c5 i386: Fix link collisions resulting from gcc4.4.1 upgrade
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-12-05 01:02:19 +01:00
Graeme Russ
c74bfce0fb i386: Fix dlmalloc compile warning
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-12-05 01:01:49 +01:00
Graeme Russ
5b34a296d4 Add PCI support to eNET board
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-09-04 21:57:50 +02:00
Graeme Russ
f50b619d9c i386: Moved PCI from #ifdef to conditional compile for sc520 boards
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-09-04 21:57:22 +02:00
Graeme Russ
ed7a1b681d i386: Replace [read, write]_mmcr_[byte, word, long] with memory mapped structure
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-09-04 21:56:45 +02:00
Graeme Russ
cfb3a736ff i386: Change inline asm global symbols to local
gcc 4.3.2 optimiser creates multiple copies of inline asm (who knows why)
Remove use of global names for labels to prevent 'symbol already defined'
errors

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-09-04 21:49:48 +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
Graeme Russ
85ffbbd519 Renamed cpu/i386/reset.S to resetvec.S
Brings i386 in line with other CPUs with a reset vector and frees up reset.c
for CPU reset functions

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-01-24 01:06:25 +01:00
Graeme Russ
c620c01e96 Added initial eNET board support
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2009-01-24 01:01:16 +01:00