#95: Run coreboot in VirtualBox
by coreboot
#95: Run coreboot in VirtualBox
---------------------------------+------------------------------------------
Reporter: uwe | Owner: somebody
Type: defect | Status: new
Priority: minor | Milestone:
Component: misc | Version:
Keywords: | Dependencies:
Patchstatus: there is no patch |
---------------------------------+------------------------------------------
It would be nice if we could test coreboot images in VirtualBox, see
http://virtualbox.org/.
VirtualBox does not (yet) provide a simple mechanism to use a different
BIOS in their emulated machines (something like "-L" in qemu). Instead the
BIOS image (a custom bochs BIOS + LGPL'g VGABIOS) is converted to C code
(an array of bytes, or the like) and merged into the VirtualBox
executable.
The relevant files are
{{{
src/VBox/Devices/PC/DevPcBios.cpp
bldprogs/bin2c.c
}}}
if someone want to hack VirtualBox to easily support using coreboot images
instead of their usual BIOS.
--
Ticket URL: <http://tracker.coreboot.org/trac/coreboot/ticket/95>
coreboot <http://www.coreboot.org/>
4 years, 1 month
EHCI debug port finder
by Carl-Daniel Hailfinger
I wanted to know which physical port of my multiple USB controllers have
the debug capability. There was no way to find that easily, so I created
a tool which will do most of the work for the user.
Example output:
The following PCI devices support a USB debug port (says lspci):
0000:00:1d.7
The following PCI devices support a USB debug port (says the kernel):
0000:00:1d.7
PCI device 0000:00:1d.7, USB bus 3, USB physical port 1
Currently connected high-speed devices:
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/6p, 480M
|__ Port 2: Dev 20, If 0, Class=stor., Driver=usb-storage, 480M
The output can be improved, but it's a good start.
Regards,
Carl-Daniel
--
http://www.hailfinger.org/
4 years, 7 months
Dual SPI Flash adapter attempt 2.0
by Oliver Schinagl
Hi list(s),
Here's my second attempt at routing the previously mailed png of my schema.
It was a lot trickier to route then my previous version, but I think it
worked out!
As mentioned, S1 and S2 need to be shorted if U3 is to be omitted. RN1
should be 10k or ideally 100k, as Peter mentioned earlier.
Hopefully there's no obvious mistakes and can start working on
alternative layouts (so it is insert-able in different angles).
DRC Check fails on S1, S2 and U3. It thinks the distance is to shallow.
That said, DRC check passes when I set the copper width/distance to
7mil's instead of the current 8 mils.
I'm planning on having these PCB's manufactured by Seeed studio and
their minimal width is much smaller.
Minimum trace width: 6mil
Minimum trace/vias/pads space : 6mil
Minimum silkscreen width : 4mil
Minimum silkscreen text size : 32mil
I've used a grid size of 10mil and distances of 8 mils, as I didn't want
to rely on the minimum of seed. The silkscreen I positioned using a grid
size of 5 mil's however. Not sure what they mean with a 'minimum
silkscreen text size' however.
Anyhow, feedback greatly appreciated, so I can start working on
alternative layouts :)
4 years, 10 months
fixed AMD SPI speed settings (leading to problems on E350M1/USB3)
by Stefan Tauner
Hi,
andor reported a problem where flashrom does reproducibly not work with
coreboot but does with the vendor BIOS
http://paste.flashrom.org/view.php?id=1614
Apparently it is related to fast reads and/or the frequency.
We have forced the fastReadEnable bit in the SPI_Cntrl0 from 1 to 0 and
also set NormSpeed in SPI_Cntrl1 to 16.5 Mhz (previously was 0 i.e. 66
MHz) in flashrom and the problem vanished.
Coreboot hard codes the fast read setting in
src/southbridge/amd/cimx/sb800/bootblock.c:
static void enable_spi_fast_mode(void)
{
u8 byte;
u32 dword;
device_t dev = PCI_DEV(0, 0x14, 0x03);
// set temp MMIO base
volatile u32 *spi_base = (void *)0xa0000000;
u32 save = pci_io_read_config32(dev, 0xa0);
pci_io_write_config32(dev, 0xa0, (u32) spi_base | 2);
// early enable of SPI 33 MHz fast mode read
byte = spi_base[3];
spi_base[3] = (byte & ~(3 << 14)) | (1 << 14);
spi_base[0] = spi_base[0] | (1 << 18); // fast read enable
pci_io_write_config32(dev, 0xa0, save);
}
Marc suggested that this should be configurable in the devicetree or by
a kconfig setting. Also, the statements using "byte" do not make a lot
of sense to me. Shouldn't that be a u32 instead?
The public documentation of the fastReadEnable is lacking any detail
and I don't have access to the NDAed version of the RRG. Is my theory
correct that the controller uses the 0x0B opcode with a fixed frequency
(33 MHz?) instead of 0x03 with the frequency set by NormSpeed?
--
Kind regards/Mit freundlichen Grüßen, Stefan Tauner
4 years, 11 months
#186: 3com 3c905tx / gpxe boot problem
by coreboot
#186: 3com 3c905tx / gpxe boot problem
-----------------------------------+----------------------------------
Reporter: jeroenkrabbendam@… | Owner: stepan@…
Type: defect | Status: new
Priority: minor | Milestone:
Component: coreboot | Keywords: gpxe
Dependencies: | Patch Status: there is no patch
-----------------------------------+----------------------------------
Although (or: just because) novice in the field, I encountered some
problems with netbooting with coreboot.
Mobo's tried: Asus P2B, VTech with bios id ITE8671-2A69KV3IC-00. All
mobo's boot '''harddisk''' fine with Asus P2B / Gigabyte GA-6BX{CE}
respectively.
NIC ROM is started, and loads the kernel by tftp. This is vvvveeeerrrryyy
slow! Although loading, the kernel is never able to start itself. Same
kernel on HDU is no problem at all (GRUB2)
Note: the gpxe-image is on the nic, coreboot payload is seabios.
--
Ticket URL: <https://tracker.coreboot.org/trac/coreboot/ticket/186>
coreboot <http://www.coreboot.org/>
5 years
#191: Coreboot:libpayload-size_t conflicting types compiler error
by coreboot
#191: Coreboot:libpayload-size_t conflicting types compiler error
---------------------------+----------------------------------
Reporter: Pradish | Owner: uwe@…
Type: defect | Status: new
Priority: blocker | Milestone:
Component: libpayload | Keywords:
Dependencies: | Patch Status: there is no patch
---------------------------+----------------------------------
Hi
I have question related to libpayload, which I am trying to solve, but not
able to.
I have successfully build the coreboot.rom for QEMU x86.
Now when I try to build the libpayload project it throws error.
System configuration:
Virtual Box –Ubuntu 11.10 version
Building for X86 Paltform
Earlier I have run the cross toolchain using the command ‘make crossgcc’
and it was succcessfull
Error information:
/coreboot/payloads/libpayload$ make install
CC libpci/libpci.libpci.o
In File included from include/libpayload.h:54:0,
from libpci/libpci.c:30:
include/x86/arch/types.h:56:22: error: conflicting types for 'size_t'
In file included from include/libpayload.h:49:0,
from libpci/libpci.c:30:
/home/pradish/coreboot/util/crossgcc/xgcc/lib/gcc/i386-elf/4.7.2/include/stdded.h:213:23:
note: previous declaration of 'size_t' was here
make: ***[build/libpci/libpci.libpci.o] Error 1
pradish@pradish-VrtualBox:~/coreboot/paylaods/libpayload$
can you tell me, how to resolve this , I have not done any changes to the
source code. Just performed ‘make’
regards
pradish
--
Ticket URL: <https://tracker.coreboot.org/trac/coreboot/ticket/191>
coreboot <http://www.coreboot.org/>
5 years, 2 months
The OS of open source solution
by Free_QP＠hotmail.com
Hi Maillinglist,
I’m now trying to boot OS with open source solution (Coreboot + SeaBIOS), but have some questions. For example,
1.Which OS can be supported by this kind of solution? For example, is Win7 or Win8 supported?
2.How to build/create or customize the OS images?
Thanks，
Free_QP
5 years, 3 months
New Kabini Hardware
by Andrew DeAngelis
Hello all,
I am a computer engineer from Cogent Computer Systems. I'm
bringing up Coreboot on our new CSB1890t10/CSB1801t10 system which is
based largely on the AMD Olivehill platform. Is there anyone out
there who has experience with Coreboot on Kabini and may be able to
answer questions about unexpected resets when using the AMD Catalyst
graphics driver? We're booting Ubuntu and Windows 7 right now with a
barely modified mainboard code brought over from Olivehill, but I'm
sure there must be some things we are doing wrong, esp. ACPI.
Also, are there any candidates who may be interested in trading our
potentially buggy hardware system for some expert help with the board
port? Please let me know!
Andrew DeAngelis
Design Engineer
Cogent Computer Systems
17 Industrial Drive
Smithfield, RI 02917
tel: 401-349-3999
fax: 401-349-3998
E-mail: andrew(a)cogcomp.com
5 years, 3 months
How to best add new boards derived from existing board?
by Paul Menzel
Dear coreboot folks,
it is great to see patches adding new boards to our repository. Lately
this was AMD Olive Hill [1], ASRock IMB-A180 [2] and just now the Micro
Passion Kratos-X1 [3].
The Olive Hill took a AMD Family 15 board as a template, the IMB-A180
was derived from the Olive Hill and, I believe, the Kratos-X1 is also
derived from one of these two. (Derived means, an existing board’s
directory was copied and then adapted.)
With the current approach it is difficult to see the actual changes to
the template board. Especially in Gerrit. Therefore these board support
patches are hard to review.
Do you know, how to avoid this problem? Currently, I came only up with
adding a “copy-commit” with just the Kconfig name changes and then the
actual changes in a separate commit on top of it. Jens Rottmann did the
same when adding the LiPPERT (now ADLINK) boards [4][5].
Thanks,
Paul
[1] http://review.coreboot.org/3784
[2] http://review.coreboot.org/3880
[3] http://review.coreboot.org/3951
[4] http://review.coreboot.org/2552
[5] http://review.coreboot.org/2553
5 years, 3 months
