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during early coreboot_ram), pci_{read,write}_config{8,16,32} will die().
This patch changes pci_{read,write}_config{8,16,32} to use the existing
PCI access method autodetection infrastructure instead of die()ing.
Until r4340, any usage of pci_{read,write}_config{8,16,32} in
coreboot_ram before the device tree was set up resulted in either a
silent hang or a NULL pointer dereference. I changed the code in r4340
to die() properly with a loud error message. That still was not perfect,
but at least it allowed people to see why their new ports died.
Still, die() is not something developers like to see, and thus a patch
to automatically pick a sensible default instead of dying was created.
Of course, handling PCI access method selection automatically for
fallback purposes has certain limitations before the device tree is set
up. We only check if conf1 works and use conf2 as fallback. No further
tests are done.
This patch enables cleanups and readability improvements in early
coreboot_ram code:
Without this patch:
dword = pci_cf8_conf1.read32(&pbus, sm_dev->bus->secondary,
sm_dev->path.pci.devfn, 0x64);
With this patch:
dword = pci_read_config32(sm_dev, 0x64);
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4646 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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more flexible. Also some minore device allocator cleanups that sneaked
in.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4452 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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It's basically done with the following script and some manual fixup:
VARS=`grep ^define src/config/Options.lb | cut -f2 -d\ | grep -v ^CONFIG | grep -v ^COREBOOT |grep -v ^CC`
for VAR in $VARS; do
find . -name .svn -prune -o -type f -exec perl -pi -e "s/(^|[^0-9a-zA-Z_]+)$VAR($|[^0-9a-zA-Z_]+)/\1CONFIG_$VAR\2/g" {} \;
done
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4381 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Any endless loop after die() can be eliminated.
Dereferencing a NULL pointer is bad. die() instead.
Replace endless loops with die().
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4340 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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memory must be clear with 0s because otherwise the resources of K8 will be
totally messed up.
res = probe_resource(dev, 0x100 + (reg | link));
This is called with dev = NULL and this is no good for probe_resource at all.
The attached patch fixes the potential problems and of course the problem
itself. On one particular place was missing test if the device really exists.
This was copied to fam10 and perhaps the same issue is in v3 (DID NOT check).
The rest of the patch is just very paranoid and do all checkings.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Myles Watson <mylesgw@gmail.com>
--This line, and those below, will be igno
red--
M src/devices/pci_ops.c
M src/northbridge/amd/amdk8/northbridge.c
M src/northbridge/amd/amdfam10/northbridge.c
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4030 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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horribly broken and thus never used by any platform. This needs to get
straightened out so current chipsets drivers can use the full feature set.
Create wrapper functions similar to the io pci config space ones.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3981 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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with nonzero PCI bus operations, get_pbus() will get stuck in a silent
endless loop.
Detect the endless loop and break out with an error message.
Such a situation can happen if the device tree is not yet
initialized/walked completely.
This fixes the unexplainable hang if pci_{read,write}_config{8,16,32}was
used in early mainboard code for the AMD DBM690T. Instead, the code will
now die() with a meaningful error message.
Thanks to Ward Vandewege for testing my patches to track down that bug.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Marc Jones <marcj303@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3972 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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a long time ago. This will make it easier to port v2 boards forward to v3 at
some point (and other things)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3964 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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code is changed.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3052 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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For files derived from the Linux kernel we merely add a small header
which states the origin of the file and the copyright owners of the
modifications to the file.
We know all files from Linux are licensed under the GPLv2.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2615 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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- The sandpointx3+altimus has been consolidated into one directory for now.
- Added support for having different versions of the pci access functions
on a per bus basis if needed.
Hopefully I have not broken something inadvertently.
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1786 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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