diff options
| author | Nikolay Petukhov <nikolay.petukhov@gmail.com> | 2008-03-29 16:59:27 +0000 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2008-03-29 16:59:27 +0000 |
| commit | 9c2255c66c20cd90f39cc08c1220d93222d5d580 (patch) | |
| tree | 5856ba073775b3259a454545d7b6a3fda4c82824 /src/southbridge/amd/cs5536 | |
| parent | 0e122af46553c394b1ac4c38dd83ab01c7c34a9c (diff) | |
| download | coreboot-9c2255c66c20cd90f39cc08c1220d93222d5d580.tar.xz | |
Now coreboot performs IRQ routing for some boards.
You can see this by executing commands like this:
grep -r pci_assign_irqs coreboot/src/*
This basically AMD/LX based boards: pcengines/alix1c,
digitallogic/msm800sev, artecgroup/dbe61, amd/norwich, amd/db800.
Also for AMD/GX1 based boards need a patch
[http://www.pengutronix.de/software/ptxdist/temporary-src/references/geode-5530.patch]
for the right IRQ setup.
AMD/GX1 based boards is: advantech/pcm-5820, asi/mb_5blmp, axus/tc320,
bcom/winnet100, eaglelion/5bcm, iei/nova4899r, iei/juki-511p.
I have two ideas.
1. Delete duplicate code from AMD/LX based boards.
2. Add IRQ routing for AMD/GX1 boards in coreboot.
The pirq.patch for IRQ routing logically consist from of two parts:
First part of pirq.patch independent from type chipsets and assign IRQ for
ever PCI device. It part based on AMD/LX write_pirq_routing_table() function.
Second part of pirq.patch depends of type chipset and set PIRQx lines
in interrupt router. This part supports only CS5530/5536 interrupt routers.
IRQ routing functionality is included through PIRQ_ROUTE in Config.lb.
Tested on iei/juki-511p(cs5530a), iei/pcisa-lx(cs5536) and also on
TeleVideo TC7020, see
http://www.coreboot.org/pipermail/coreboot/2007-December/027973.html.
Signed-off-by: Nikolay Petukhov <nikolay.petukhov@gmail.com>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3196 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/amd/cs5536')
| -rw-r--r-- | src/southbridge/amd/cs5536/Config.lb | 1 | ||||
| -rw-r--r-- | src/southbridge/amd/cs5536/cs5536_pirq.c | 39 |
2 files changed, 40 insertions, 0 deletions
diff --git a/src/southbridge/amd/cs5536/Config.lb b/src/southbridge/amd/cs5536/Config.lb index fe4e26558b..6f317de4de 100644 --- a/src/southbridge/amd/cs5536/Config.lb +++ b/src/southbridge/amd/cs5536/Config.lb @@ -20,3 +20,4 @@ config chip.h driver cs5536.o driver cs5536_ide.o +driver cs5536_pirq.o diff --git a/src/southbridge/amd/cs5536/cs5536_pirq.c b/src/southbridge/amd/cs5536/cs5536_pirq.c new file mode 100644 index 0000000000..b8b4a10b1d --- /dev/null +++ b/src/southbridge/amd/cs5536/cs5536_pirq.c @@ -0,0 +1,39 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <arch/pirq_routing.h> +#include <console/console.h> +#include <device/pci.h> +#include <device/pci_ids.h> + +#if (PIRQ_ROUTE==1 && HAVE_PIRQ_TABLE==1) +void pirq_assign_irqs(const unsigned char pIntAtoD[4]) +{ + device_t pdev; + + pdev = dev_find_device(PCI_VENDOR_ID_AMD, + PCI_DEVICE_ID_AMD_CS5536_ISA, 0); + + if (pdev) { + pci_write_config16(pdev, 0x5c, (pIntAtoD[3] << 12 + | pIntAtoD[2] << 8 | pIntAtoD[1] << 4 | pIntAtoD[0])); + } +} +#endif |