coreboot April 2007

coreboot@coreboot.org

76 participants
281 discussions

Re: [LinuxBIOS] An idea, of sorts
by will.nichols＠comcast.net 10 Apr '07

10 Apr '07

Hello, I've been lurking on the list for quite some time, and felt a need to reply to this post. I use dental floss underneath my PLCC's. Lay 3 or 4 inches centered in the bottom of the socket, from one corner to it's diagonal neighbor. Plug the chip in as usual. When you want to remove it, pull up on the free ends of the floss. Not as cool as the pushpins, but it works. Will -------------- Original message ---------------------- From: "Tom Sylla" <tsylla(a)gmail.com> > On 4/10/07, Corey Osgood <corey_osgood(a)verizon.net> wrote: > > I thought about doing something very similar to this, but would there be > > any issue with the conductivity of the super glue? Especially if any > > spilled onto the pins? That was the concern that kept me from > > experimenting with it (and the inclusion of a plcc extractor with my > > BIOS savior, I was just too cheap to buy one). I've also tinkered around > > with using toothpicks to remove the chips...bad idea. > > Super glue is no problem for shorting pins. If I am doing a > particualrly hairy probe point attachment, or some other rework for > debug, I will stiffen any mechanical nightmares with a bunch of super > glue. I use the thick stuff, and then hit it with accelerator to > freeze it. Epoxy is good for this too, but super glue is instantaneous > with the accelerator and actually reversible with the proper solvent. > > Also, I have had good luck with part 822154-1 from techni-tool for > PLCC extraction. The spring-loaded things are much more prone to > busting up PLCC pins. The simple Tyco extractor works pretty well for > hot-removal. > > -- > linuxbios mailing list > linuxbios(a)linuxbios.org > http://www.linuxbios.org/mailman/listinfo/linuxbios

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[LinuxBIOS] My very own homemade BIOS saviour
by Luis Correia 10 Apr '07

10 Apr '07

Hi! after some time being absent from here while attending o some other pressing issues, i'm back to LinuxBIOS :) My NOVA-4899R needs a proper bios and i'm confident that this time it would get better. But as always, problem is swaping the BIOS with enough confidence. After ruining onf my my precious BIOS chips, I decided on a radical approach. Here is the photo (sorry for the hosting), and the explanation follows: http://img156.imageshack.us/img156/7942/detail01hd8.jpg This is composed of a BIOS with a PLCC socket soldered on top (all pins except #CE) Then, the #CE signal is intercepted and routed to a switch, which in turn selects the upper or lower chip. After the first boot and using uniflash as a detecting software for the parts, only one of the chips was correctly identified. Then it struct me that while one chip was connected to the controller, the other had the pin 'free floating'. This was solved by pulling the two #CE pins from the flash devices to +5V. This is a very dumb rig, but hey, it works. I haven't flashed any on the chips yet, but now uniflash does detect them correctly. I'll be offline until the 20th but after that i'll try to post more detailed pictures of it, along with a proper schematics. Thanks for listeing to all this crap :) Luis Correia

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Re: [LinuxBIOS] An idea, of sorts
by Randall Philipson 10 Apr '07

10 Apr '07

I haven't spilled any on any pins yet. You don't need very much glue to make it work. I don't know how conductive super glue is, I don't think it is very, but it might be an interesting experiment. I'll pull out the datasheet and put some glue between D0 and D1 or some pins that won't be shorting Vcc to ground and see if it affects it. Randy ---- Corey Osgood <corey_osgood(a)verizon.net> wrote: > Randall Philipson wrote: > > I don't have an account so I guess I can't edit the wiki, but anyone can feel free to add the stuff, or if desired, I can work up something and submit it for consideration. (I guess I would just submit an HTML attachment?). > > > > Obviously I'm not claiming any copyright on the photos. Public domain, share them if you wish. > > > > I thought about doing something very similar to this, but would there be > any issue with the conductivity of the super glue? Especially if any > spilled onto the pins? That was the concern that kept me from > experimenting with it (and the inclusion of a plcc extractor with my > BIOS savior, I was just too cheap to buy one). I've also tinkered around > with using toothpicks to remove the chips...bad idea. > > BTW, very nice job, and good pics. > > -Corey

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[LinuxBIOS] Problem to Support SuperIO Winbond W83977AF
by ccases＠navista.fr 10 Apr '07

10 Apr '07

Hi to all, I have create a linuxbios file for my embeded mother board call Adavantech PCM-5823, and I have some problem with the fonctionality of the superIO winbond W83977AF/TF, when I put LinuxBIOS in my chip, I have nothing on screen and no information on the COM port. In linuxBIOS I used the superIO winbond W83977TF. According to the documentation of the winbond W83977AF and W83977TF the chip is virtually identical, but the are some difference on the number of I/O programable port. For now I'm blocked. If somebody has a solution for my problem, I thank it by advance. Regards Ccases

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[LinuxBIOS] An idea, of sorts
by Randall Philipson 10 Apr '07

10 Apr '07

I've implemented an idea in an attempt to make hot plugging safer. I imagine it is something that people have already done, but have been too embarrassed to post. ( I, fortunately, have no shame ). It involves taking the little push tacks ubiquitous in the office environment and clipping off the needle point. I then super glue them to the top of my flash (I only recommend this for PLCC. With DIPs, and whatever else, you are probably better off with the chip pullers). Pictures of my experiments are shown here; http://members.cox.net/rtphilipson/knob1.jpg http://members.cox.net/rtphilipson/knob2.jpg So far it has been very successful. I have not had a knob fall off (yet). With the PLCC I think this is a much safer way to hotplug than using a chip puller. If I ever do have one fall off, I'll have a future post about recovery techniques :o). The most important point is to shave off the resulting nub left when cutting off the needle point so that you have a flat surface to glue. I recommend a dremel tool grinder. Although I've had success using a scissor blade (takes a long time). If you have a BIOS sticker on top, you'll need to peel that off and clean off the glue thoroughly. One of the drawbacks is that the chip part number is covered up. If you have several chips types to deal with, this can be a problem. I've implemented a color coding system that works well since I only have a couple of chip types to deal with. FWIW, Randy

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[LinuxBIOS] r2600 build service
by LinuxBIOS information 10 Apr '07

10 Apr '07

Dear LinuxBIOS readers! This is the automated build check service of LinuxBIOS. The developer "stepan" checked in revision 2600 to the LinuxBIOS source repository and caused the following changes: Change Log: This patch corrects r2587. It makes sure that the VGA is initialized when CONFIG_CONSOLE_VGA==0 and CONFIG_PCI_ROM_RUN==1 Signed-off-by: Roman Kononov <kononov(a)dls.net> Acked-by: Stefan Reinauer <stepan(a)coresystems.de> Build Log: Compilation of amd:quartet is still broken Compilation of amd:serenade is still broken Compilation of amd:serengeti_leopard is still broken Compilation of amd:solo is still broken Compilation of arima:hdama is still broken Compilation of artecgroup:dbe61 is still broken Compilation of gigabyte:m57sli is still broken Compilation of ibm:e325 is still broken Compilation of ibm:e326 is still broken Compilation of iwill:dk8_htx is still broken Compilation of iwill:dk8s2 is still broken Compilation of iwill:dk8x is still broken Configuration of msi:ms9282 is still broken Compilation of nvidia:l1_2pvv is still broken Compilation of technologic:ts5300 is still broken Compilation of tyan:s2912 is still broken If something broke during this checkin please be a pain in stepan's neck until the issue is fixed. If this issue is not fixed within 24h the revision will be backed out. Yours truely, LinuxBIOS automatic build system

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[LinuxBIOS] rom-madness: CFI vs FWH vs SPI, 5V, 3.3, ...
by Luc Verhaegen 10 Apr '07

10 Apr '07

This came up on irc (#openbios(a)freenode.net) now... I asked about the 3.3V vs 5V roms, and i only got further confusion... This is one of the later lines written there: < segher> there are SPI chips with at least three different voltages. same for CFI. FWH, i dunno, FWH is some wacko intel shit < segher> and then there are flash chips from before CFI, too < segher> the older of which require *two* voltages < segher> oh and there also are LPC flash roms If anyone can bring clarity, please do, and please make it extensive enough so that afterwards everything can be bundled together and stuck on the wiki. Luc Verhaegen.

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[LinuxBIOS] r2601 build service
by LinuxBIOS information 10 Apr '07

10 Apr '07

Dear LinuxBIOS readers! This is the automated build check service of LinuxBIOS. The developer "uwe" checked in revision 2601 to the LinuxBIOS source repository and caused the following changes: Change Log: flashrom: Add VIA CX700 to the list of supported southbridges (trivial). Signed-off-by: Uwe Hermann <uwe(a)hermann-uwe.de> Acked-by: Uwe Hermann <uwe(a)hermann-uwe.de> Build Log: Compilation of amd:quartet is still broken Compilation of amd:serenade is still broken Compilation of amd:serengeti_leopard is still broken Compilation of amd:solo is still broken Compilation of arima:hdama is still broken Compilation of artecgroup:dbe61 is still broken Compilation of gigabyte:m57sli is still broken Compilation of ibm:e325 is still broken Compilation of ibm:e326 is still broken Compilation of iwill:dk8_htx is still broken Compilation of iwill:dk8s2 is still broken Compilation of iwill:dk8x is still broken Configuration of msi:ms9282 is still broken Compilation of nvidia:l1_2pvv is still broken Compilation of technologic:ts5300 is still broken Compilation of tyan:s2912 is still broken If something broke during this checkin please be a pain in uwe's neck until the issue is fixed. If this issue is not fixed within 24h the revision will be backed out. Yours truely, LinuxBIOS automatic build system

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[LinuxBIOS] r2599 build service
by LinuxBIOS information 09 Apr '07

09 Apr '07

Dear LinuxBIOS readers! This is the automated build check service of LinuxBIOS. The developer "stepan" checked in revision 2599 to the LinuxBIOS source repository and caused the following changes: Change Log: add support for CX700 builtin southbridge Signed-off-by: Randall Philipson <rtphilipson(a)cox.net> Acked-by: Ronald G. Minnich <rminnich(a)gmail.com> Acked-by: Stefan Reinauer <stepan(a)coresystems.de> Build Log: Compilation of amd:quartet is still broken Compilation of amd:serenade is still broken Compilation of amd:serengeti_leopard is still broken Compilation of amd:solo is still broken Compilation of arima:hdama is still broken Compilation of artecgroup:dbe61 is still broken Compilation of gigabyte:m57sli is still broken Compilation of ibm:e325 is still broken Compilation of ibm:e326 is still broken Compilation of iwill:dk8_htx is still broken Compilation of iwill:dk8s2 is still broken Compilation of iwill:dk8x is still broken Configuration of msi:ms9282 is still broken Compilation of nvidia:l1_2pvv is still broken Compilation of technologic:ts5300 is still broken Compilation of tyan:s2912 is still broken If something broke during this checkin please be a pain in stepan's neck until the issue is fixed. If this issue is not fixed within 24h the revision will be backed out. Yours truely, LinuxBIOS automatic build system

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[LinuxBIOS] r2601 - trunk/LinuxBIOSv2/util/flashrom
by svn＠openbios.org 09 Apr '07

09 Apr '07

Author: uwe Date: 2007-04-10 00:59:22 +0200 (Tue, 10 Apr 2007) New Revision: 2601 Modified: trunk/LinuxBIOSv2/util/flashrom/README Log: flashrom: Add VIA CX700 to the list of supported southbridges (trivial). Signed-off-by: Uwe Hermann <uwe(a)hermann-uwe.de> Acked-by: Uwe Hermann <uwe(a)hermann-uwe.de> Modified: trunk/LinuxBIOSv2/util/flashrom/README =================================================================== --- trunk/LinuxBIOSv2/util/flashrom/README 2007-04-09 22:50:12 UTC (rev 2600) +++ trunk/LinuxBIOSv2/util/flashrom/README 2007-04-09 22:59:22 UTC (rev 2601) @@ -148,6 +148,7 @@ NVIDIA MCP55 SiS 630 SiS 5595 +VIA CX700 VIA VT8231 VIA VT8235 VIA VT8237

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coreboot April 2007