coreboot November 2007

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75 participants
397 discussions

[LinuxBIOS] Add initial support for intel i855gme northbridge
by Jon Dufresne 20 Jan '09

20 Jan '09

Add initial support for i855gme. This is a work in progress and I don't expect it to work on all boards, or even any besides mine. This is based heavily on i855pm. Signed off by Jon Dufresne <jon.dufresne(a)gmail.com>

4 4

[LinuxBIOS] A8N5X port
by Robert Millan 21 Nov '08

21 Nov '08

This patch includes config files for the asus/a8n5x port. It is the same as asus/a8n_e with a different pnp layout, so I used #include's whenever possible. System boots and is usable with usb keyboard. works: - serial port - vga (old pci card) - memtest86+ succeeds, but only with Rudolf's patch for unbuffered dimms in K8. Otherwise you get spurious memory corruption. - ide disk - usb doesn't: - ps/2 keyboard - onboard ethernet - vga pci-e card (??) - any other pci card I tried wasn't tested: - sata - game port - onboard audio (not supported by alsa anyway) - ps/2 mouse -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What use is a phone call, if you are unable to speak? (as seen on /.)

8 27

[LinuxBIOS] flashrom support for AMD Geode CS5536
by Lane Brooks 16 May '08

16 May '08

Attached is a patch that enables AMD Geode CS5536 chipset support. I have tested it successfully on a MSM800 board from digital logic. It does, however, have a few issues that I would like some feedback on. In my discussions with Marc Jones, Geode systems write protect the BIOS via RCONFs (cache settings similar to MTRRs). Unlocking requires changing MSR 0x1808 top byte to 0x22. Reading and writing to the msr, however, requires instrucitons rdmsr/wrmsr, which are ring0 privileged instructions so only the kernel can do the read/write. So my patch uses the msr kernel module to access these instructions from user space using the /dev/cpu/0/msr device. My questions are: - I do not think this is portable beyond linux. Is that an issue? - My code assumes the msr kernel module is already loaded. Is there a way to force a kernel module to load from the C code? My code does die gracefully with a message reminding them to load the kernel module if things fail. - It seems like there should be a way to revert the msr back after flashing is completed to put the bios back in write protect mode. Is there a cleanup mechanism available? Something like disable_flash... Thanks, Lane Brooks

8 17

[LinuxBIOS] W39V040BPZ or vt8237. Flashing problems.
by Adam Talbot 04 Mar '08

04 Mar '08

Have three motherboards running cn700, VT8237 chips set. All three boards have W39V040BPZ bios chips. I can not program them with flashrom. Flashrom see the chip as W39V040B. Flashrom start on the flash and just sits there. When flashed with the -V option I can see the memory address is not changing. But, big problem is the fact that the chip does get a bit flashed, as, I can no longer boot. So there is something happening. Looking at the data sheet for the W39V040B, all the PZ gives me is the PLCC package and lead free. So, is this a problem with the vt8237 south bridge? Where should I go to start debugging? -Adam

6 19

[LinuxBIOS] [PATCH] fix port 0 on sata controller 0 for ck804 based boards
by Ward Vandewege 20 Feb '08

20 Feb '08

Hi all, There is a problem with the ck804 code in the tree when it comes to SATA support. I've observed this on a tyan s2891, and it has been confirmed by folks with a sun ultra40. This patch changes the southbridge/nvidia/ck804/ck804_early_setup.c file and enables one extra SATA port. I've tested this on real hardware (tyan s2891). There is a very similar file called southbridge/nvidia/ck804/ck804_early_setup_car.c which seems to be used by tyan/s2895 sunw/ultra40 I don't have access to a s2895, but YH thinks that all sata ports should work on that board. It would be great if someone could verify that. I'm not 100% sure why both the ck804_early_setup.c and the ck804_early_setup_car.c file are included in the mainboards/sunw/ultra40/ tree; probably only one of those files is actually used. I've spent quite a bit of time with 'dumpio' and tried to match register values between the proprietary BIOS and LinuxBIOS, but to no avail. If someone has ideas to get port 1 working on both sata controllers, that would be great. Thanks, Ward. -- Ward Vandewege <ward(a)fsf.org> Free Software Foundation - Senior System Administrator

5 8

[LinuxBIOS] Qemu compile for LinuxBIOSV2
by Marc Karasek 01 Feb '08

01 Feb '08

I am trying to get up to speed on LinuxBIOS and to that end have tried to compile both v3 & v2 for qemu. I have successfully compiled and run v3 with a filo package on my Fedora 8 system. When I try to compile v2 with a filo.elf payload I get the : collect2: ld terminated with signal 11 [Segmentation fault] Error In looking at the compile it has gotten through the compile part and is linking. rm -f linuxbios.a ar cr linuxbios.a malloc.o pci_ops.o smbus_ops.o memset.o pci_ops_auto.o linuxbios_table.o fallback_boot.o pciexp_device.o keyboard.o pnp_device.o printk.o irq_tables.o pcix_device.o i8259.o pci_device.o console.o elfboot.o hardwaremain.o boot.o exception.o delay.o version.o pci_ops_mmconf.o memcmp.o isa-dma.o hypertransport.o vtxprintf.o tables.o root_device.o cardbus_device.o uart8250.o device_util.o ./option_table.o compute_ip_checksum.o device.o northbridge.o memcpy.o agp_device.o vgabios.o clog2.o pirq_routing.o memmove.o pci_ops_conf2.o pci_ops_conf1.o mc146818rtc.o rom_stream.o c_start.o vsprintf.o cpu.o static.o gcc -m32 -nostdlib -r -o linuxbios_ram.o c_start.o mainboard.o uart8250_console.o linuxbios.a /usr/lib/gcc/i386-redhat-linux/4.1.2/libgcc.a gcc -m32 -nostdlib -nostartfiles -static -o linuxbios_ram -T /home/mk216460/src/LinuxBIOSv2-2988/src/config/linuxbios_ram.ld linuxbios_ram.o collect2: ld terminated with signal 11 [Segmentation fault] make[1]: *** [linuxbios_ram] Error 1 make[1]: Leaving directory `/home/mk216460/src/LinuxBIOSv2-2988/targets/emulation/qemu-i386/qemu-i386/image' In looking at the /var/log/messages you see Nov 30 14:37:02 dhcp-uatl04-156-163 kernel: ld[3691]: segfault at 00000030 eip 08068b2c esp bfc6a0f0 error 4 Any help/pointers for what to look at would be helpful. -- /********************* Marc Karasek MTS Sun Microsystems mailto:marc.karasek@sun.com ph:770.360.6415 *********************/

6 20

[LinuxBIOS] [Fwd: Re: AMD 690G chipset support in LinuxBIOS v2]
by Marc Jones 22 Jan '08

22 Jan '08

Meant to send this to the list. Marc -------- Original Message -------- Subject: Re: [LinuxBIOS] AMD 690G chipset support in LinuxBIOS v2 Date: Mon, 10 Sep 2007 21:05:47 -0600 From: Marc Jones <Marc.Jones(a)AMD.com> To: Darmawan Salihun <darmawan.salihun(a)gmail.com> References: <46893e740709101937j32a4f32bu6dc296a628d36dc6(a)mail.gmail.com> Darmawan Salihun wrote: > Hi all, > I've grepped through the source code last night but haven't found > code for board that uses this chipset. Is there any support coming > down the road? I'm planning to buy a new system for BIOS experiments > in the next few days. This chipset is a candidate for me. I want a > chipset with onboard video and K8 processor. > I choose K8 because the datasheet for the memory controller is > readily available. I'm open for any suggestion(s). Basically, I just > want a system that can run Vista, support multicore processor and can > be used for LinuxBIOS experiments (preferably without soldering stuff > needed). > Anyway, one further question: hot-flashing can be done on SPI > chips as well, right? > > > Regards, > > Darmawan Salihun > -------------------------------------------------------------------- > -= Human knowledge belongs to the world =- Hi Darmawan, Currently there is no support in LinuxBIOS for any ATI(now AMD) chipsets. We do plan to work on this in the next six months but I don't have a specific release date. == Marc Jones Senior Firmware Engineer (970) 226-9684 Office mailto:Marc.Jones@amd.com http://www.amd.com/embeddedprocessors Marc -- Marc Jones Senior Firmware Engineer (970) 226-9684 Office mailto:Marc.Jones@amd.com http://www.amd.com/embeddedprocessors

7 14

[LinuxBIOS] Fwd: rdcmos
by ron minnich 18 Jan '08

18 Jan '08

Here from the author (Eric Hendriks) are the tools to read and write cmos. Thanks ron

3 4

Re: [LinuxBIOS] different versions of the GA-M57SLI-S4 (PLCC vs SPI)
by Carl-Daniel Hailfinger 11 Jan '08

11 Jan '08

On 23.09.2007 23:16, echelon(a)free.fr wrote: > Quoting Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net>: >> OK, I have the 0.2 and 0.3 datasheet of IT8716F and I can't find any >> difference in interfaces between the datasheets. Please be more specific >> what you think has been replaced (including page numbers). > Simply the pinout.. (please compare the pin-out diagram btw the 2 version of > the DS). I did. Pages 7-23 (Pin configuration) are exactly the same for 0.2 and 0.3. Please tell me the page number where you see any differences. > In fact, there could be another explanation : I talked about this issue with a > hardware specialist at my work (he has worked into the IC design..) and his > hypothesis is that the component which is actually used on this motherboard is a > "custom" revision especially crafted by ITE for Gigabyte.. (yes, they had > "volume" so they could afford to make a deal for a custom revision..) Maybe. I still want to find out why your data sheet seems to differ from mine. Regards, Carl-Daniel

8 20

[LinuxBIOS] Flashrom add EON EN29F002NT
by Markus Boas 31 Dec '07

31 Dec '07

I send a patch to add support for the EON EN29F002NT Write, read works. Signed-off-by: Markus Boas <ryven(a)ryven.de>

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coreboot November 2007