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billt
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Re: AmigaOne uboot update Posted on 31-Jan-2010 3:39:17
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Joined: 24-Oct-2003 Posts: 3205
From: Maryland, USA | | |
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| @Geri
I don't think they sell it anymore, but from what I understand the Denx BDI is approximately the same when GuardianSE was new. I wish I'd have got the Denx one instead now, they stopped updating GuardianSE with new CPU support, and never finished the particular CPU that I wanted it for. :( Denx seems to better support things.
I'd bought a socket or two, maybe they were for something else though, can't remember. I don't remember them being that expensive. Repaired someone's board some time ago with a bad flash, ended up just replacing the chip. (I have a Willem programmer to flash a blank) I've not looked for a socket plug though.
Anyone remind me which flash chip we have in there? My stuff is buried since I got married and moved houses. _________________ All glory to the Hypnotoad! |
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billt
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Re: AmigaOne uboot update Posted on 31-Jan-2010 4:05:59
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Joined: 24-Oct-2003 Posts: 3205
From: Maryland, USA | | |
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| @Geri
Quote:
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Neat! Why not for Micros as well? | Because I don't know the dimensions the PCB should/can have. Otherwise it shouldn't be a problem. |
Who has a MicroA1 to take measurements of for this?
Some pics to consider extrapolating from. Looks like the flash is in the corner. :( Not sure if it'd fit over top the SODIMM socket.
Where can you get chips from? I suppose secondary chip doesn't absolutely have to be same PLCC package, but that's what I can burn standalone if needed. Doesn't seem easy to find here. Need to ask for quote at Mouser and Digikey. Newark lists one, not ROHS and no longer available anyway. Jameco only shows Dips. (I'd ordered a couple PLCCs from Mouser in 2006, should still have one but don't know where)
MicroA1 pics http://www.mrhardwarecomputers.com/pages/ma1.htm though I can't quite make out the orientation. Anyone, where is the angled corner?_________________ All glory to the Hypnotoad! |
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billt
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Re: AmigaOne uboot update Posted on 31-Jan-2010 5:10:41
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Joined: 24-Oct-2003 Posts: 3205
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zerohero
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Re: AmigaOne uboot update Posted on 31-Jan-2010 7:56:08
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Joined: 4-May-2004 Posts: 2524
From: Uddevalla, Sweden | | |
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| @Geri
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Developers come and go and we're all deeply grateful for their efforts!
Maybe the problems were not possible to fix in the A1's U-boot version. On the other side U-boot has seen a lot of rework in the meantime. Who knows, if this problems couldn't be fixed easily now?
I would like to see this issue resolved. Everbody wins, if normal users can work on the A1 U-boot code. Hyperion could concentrate on OS4 (without being bothered all the time to do an U-boot update) and we could fix and integrate new features into U-boot.
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I hope you are right, I would want it resolved as well._________________ Common sense - So rare it's almost like a super power |
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zerohero
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Re: AmigaOne uboot update Posted on 31-Jan-2010 8:02:18
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Joined: 4-May-2004 Posts: 2524
From: Uddevalla, Sweden | | |
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| @Hans
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If you spent days searching for a needle in a haystack, and then someone else came along and found it, would it really be embarrassing? I don't think so; that person would have taken advantage of the fact that he/she knew where you had looked previously, and also got lucky that he/she started looking in the right area.
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Personally I wouldn't find it embarrassing, not at all. I'm just guessing here really, adding to the mix some ego, some years of development and some badgering from ann.lu and moobunny._________________ Common sense - So rare it's almost like a super power |
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billt
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Re: AmigaOne uboot update Posted on 31-Jan-2010 16:01:23
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Joined: 24-Oct-2003 Posts: 3205
From: Maryland, USA | | |
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| @Hans
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If you spent days searching for a needle in a haystack, and then someone else came along and found it, would it really be embarrassing? I don't think so |
Nor do I. That's exactly why there is such a thing as code reviews. I've certainly needed another set of eyes to find problems in my own code. Once it was as dumb as a colon instead of a semicolon, in some scripting language where the semicolon starting the line indicated a comment line. It was surrounded by lots of comment lines, and that subtle difference between : and ; was really hard to notice.
Though we are at a disadvantage not having the Articia datasheet, register descriptions, etc. documentation and MAI internal contacts that they had back then._________________ All glory to the Hypnotoad! |
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graffias79
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Re: AmigaOne uboot update Posted on 31-Jan-2010 16:44:17
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Joined: 20-Apr-2005 Posts: 133
From: Madison, WI | | |
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| Would a new U-boot possibly add the capability to use a graphics card on the Micro or is that an issue with how the PCI slot is wired? |
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number6
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Re: AmigaOne uboot update Posted on 31-Jan-2010 16:50:02
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Joined: 25-Mar-2005 Posts: 11662
From: In the village | | |
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| @graffias79
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Would a new U-boot possibly add the capability to use a graphics card on the Micro or is that an issue with how the PCI slot is wired? |
If you follow the link in the 1st post of this thread, you'll see that's where this latest uboot convo really got restarted. Yes, it already does work with DMA/USB disabled and a certain version of uboot. That's why we're kicking this around...
#6
_________________ This posting, in its entirety, represents solely the perspective of the author. *Secrecy has served us so well* |
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graffias79
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Re: AmigaOne uboot update Posted on 31-Jan-2010 16:55:00
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Joined: 20-Apr-2005 Posts: 133
From: Madison, WI | | |
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| @number6
That would be nice. That's the only thing that really annoys me about the Micro is keeping my eye on the chip ram. |
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Draby
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Re: AmigaOne uboot update Posted on 31-Jan-2010 17:54:57
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Joined: 20-Aug-2003 Posts: 233
From: United Kingdom. | | |
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| @billt
I've got a couple of close-up pics of the Uboot area of a MicroA1, if you want them let me know. Richard. |
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Geri
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Re: AmigaOne uboot update Posted on 31-Jan-2010 18:17:07
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Joined: 7-Oct-2003 Posts: 2038
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| @billt
Quote:
billt wrote: @Geri
I don't think they sell it anymore, but from what I understand the Denx BDI is approximately the same when GuardianSE was new. I wish I'd have got the Denx one instead now, they stopped updating GuardianSE with new CPU support, and never finished the particular CPU that I wanted it for. :( Denx seems to better support things. |
I wanted to buy an Abatron BDI2000, but they're quite expensive.
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Anyone remind me which flash chip we have in there? My stuff is buried since I got married and moved houses. |
It's an AMD 29F040 4 Mbit flash.
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Some pics to consider extrapolating from. Looks like the flash is in the corner. :( Not sure if it'd fit over top the SODIMM socket. |
Oh yes, that looks tight. It would be easier to layout the flash ROM board outside of the motherboard, i.e. alongside the PCI connector. Otherwise it could conflict with longer PCI cards, if it is placed over the SODIMM socket. I'm afraid I have to redesign the current board layout as well, because the PLCC plug in socket plus board plus flash ROM PLCC socket may be higher than the adjacent PCI connector.
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Where can you get chips from? I suppose secondary chip doesn't absolutely have to be same PLCC package, but that's what I can burn standalone if needed. Doesn't seem easy to find here. Need to ask for quote at Mouser and Digikey. Newark lists one, not ROHS and no longer available anyway. Jameco only shows Dips. (I'd ordered a couple PLCCs from Mouser in 2006, should still have one but don't know where) |
I usually order from Farnell or RS-components. At least Farnell lists several compatible ROHS compliant flash ROMs. I also tried to design the board with a TSOP32 flash ROM, but the PLCC package made it easier to route the traces.
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I'm afraid these sockets are too high. I usually test the Linux kernel with a lot of PCI cards in my A1, which would be a good idea for U-boot, too. It's strange that there's no distributor for these components.
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I already have a replacement U-boot flash ROM, which I ordered from biosflash.com.
I'll try to redesign the flash ROM board for the microA1. Are there any other users that would like to work on U-boot?Last edited by Geri on 31-Jan-2010 at 06:24 PM.
_________________
A1SE: G3@600MHz, 2GB, 1GBit network card
A1XE: G4@933MHz, 2GB, refitted AC'97 codec
microA1: G3@800MHz, 1GB
- A1 Linux support - |
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tomazkid
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Re: AmigaOne uboot update Posted on 31-Jan-2010 22:31:44
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Joined: 31-Jul-2003 Posts: 11694
From: Kristianstad, Sweden | | |
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| @billt
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Though we are at a disadvantage not having the Articia datasheet, register descriptions, etc. documentation and MAI internal contacts that they had back then. |
I'll see if I get the time to look through my harddrives, recall I have some MAI material saved from their ftp. The public pdf is here: http://obligement.free.fr/files/articia_s.pdf
Just a thought as well, BPlan might have it, dunno if they are affected by eventual NDA's with a company that does not exist anymore.
and here is another:
http://digchip.net/datasheets/parts/datasheet/601/ARTICIA_S-pdf.phpLast edited by tomazkid on 01-Feb-2010 at 12:07 AM. Last edited by tomazkid on 01-Feb-2010 at 12:04 AM.
_________________ Site admins are people too..pooff! |
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billt
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Re: AmigaOne uboot update Posted on 1-Feb-2010 4:02:06
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Joined: 24-Oct-2003 Posts: 3205
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| @tomazkid
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That's just a product brief at any other vendor, marketing material to give is a quick summary of features. What we need is a register guide document that spells out the memory map, what each register does, and what the possible field values are, with explanations of it all. This marketing summary/product selection info isn't really useful.Last edited by billt on 01-Feb-2010 at 04:03 AM.
_________________ All glory to the Hypnotoad! |
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Geri
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Re: AmigaOne uboot update Posted on 1-Feb-2010 10:22:25
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Joined: 7-Oct-2003 Posts: 2038
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Geri
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Re: AmigaOne uboot update Posted on 1-Feb-2010 12:22:48
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Joined: 7-Oct-2003 Posts: 2038
From: ST/AT | | |
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| @all
Can somebody do some measurements on the microA1?
I'm interested in the following distances:
flash ROM socket - PCI connector flash ROM socket - SODIMM socket flash ROM socket - pin headers near the IDE connectors flash ROM socket - board frame
_________________
A1SE: G3@600MHz, 2GB, 1GBit network card
A1XE: G4@933MHz, 2GB, refitted AC'97 codec
microA1: G3@800MHz, 1GB
- A1 Linux support - |
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Trev
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Re: AmigaOne uboot update Posted on 1-Feb-2010 17:38:57
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Joined: 24-Jul-2005 Posts: 778
From: Sacramento, CA, USA | | |
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| Nothing official from Hyperion yet re: source code, so I've sent more requests. (That means you, Rogue. 
I spent a very tiny bit of time this weekend decompiling x86 BIOS images. We still need a legitimate source for Articia S documentation. In the meantime, we can see how other northbridges interact with the VT82C686B, presumably with all of VIA's recommendations in place.
EDIT: Re: PCI bridges, the specifications published by PCI-SIG are quite easy to find. Also, most of MindShare's books on system architecture, e.g. ISA System Architecture, PCI System Architecture, and Universal Serial Bus System Architecture, are posted on their web site in PDF form. Google is your friend. (Is that a mantra now?) Last edited by Trev on 01-Feb-2010 at 05:46 PM.
_________________ Sam440ep-flex 733 MHz/1 GB RAM/Radeon 9250/AmigaOS4.1 Update 2 borked A1200/Blizzard1260+SCSI-IV/Z4+MediatorZIV/Deneb/Voodoo3/CatweaselMk3 more borked A1200/MBX1200z/Indivision A500/clockport/RRNet A600/A603 |
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Draby
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Re: AmigaOne uboot update Posted on 1-Feb-2010 18:21:51
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Joined: 20-Aug-2003 Posts: 233
From: United Kingdom. | | |
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| @Geri
Quote:
@all
Can somebody do some measurements on the microA1?
I'm interested in the following distances:
1) flash ROM socket - PCI connector 2) flash ROM socket - SODIMM socket 3) flash ROM socket - pin headers near the IDE connectors 4) flash ROM socket - board frame |
Ok.... 1) 3.0mm, BUT there's a Jumper pin that's closer at 2.0mm.
2) 4.5mm, BUT the SODIMM retainer clip is closer at 3.5mm.
3) 7.0mm.
4) 4.0mm
Hope this helps Richard. |
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m3x
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Re: AmigaOne uboot update Posted on 1-Feb-2010 18:47:13
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Joined: 15-May-2003 Posts: 311
From: Bologna, Italy | | |
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| @billt
I may have all the needed info, sources and tools to prepare a new AmigaOne U-Boot version, to be on pair with the Sam version I developed.
Since it isn't a task to be done in a few days, but will requires a certain amount of time and tests, what about to setup a bounty for it?
I'll release source code (as already done with the Sam version) and if possible, I'll prepare an AmigaOS enabled image later. _________________ Massimiliano Tretene, ACube Systems, Soft3 |
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number6
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Re: AmigaOne uboot update Posted on 1-Feb-2010 19:31:35
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Elite Member  |
Joined: 25-Mar-2005 Posts: 11662
From: In the village | | |
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| @billt
I see you've suggested a number of bounties on http://amigabounty.net
Can you do set up one for Max? :D
#6
Last edited by number6 on 01-Feb-2010 at 07:35 PM.
_________________ This posting, in its entirety, represents solely the perspective of the author. *Secrecy has served us so well* |
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Geri
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Re: AmigaOne uboot update Posted on 1-Feb-2010 19:44:50
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Elite Member  |
Joined: 7-Oct-2003 Posts: 2038
From: ST/AT | | |
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| @Trev
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Trev wrote:
EDIT: Re: PCI bridges, the specifications published by PCI-SIG are quite easy to find. Also, most of MindShare's books on system architecture, e.g. ISA System Architecture, PCI System Architecture, and Universal Serial Bus System Architecture, are posted on their web site in PDF form. Google is your friend. (Is that a mantra now?) |
I have the PCI System Architecture book. It's the "bible" for everyone that tinkers with PCI designs resp. devices.
@Darby
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Draby wrote:
Ok.... 1) 3.0mm, BUT there's a Jumper pin that's closer at 2.0mm. 2) 4.5mm, BUT the SODIMM retainer clip is closer at 3.5mm. 3) 7.0mm. 4) 4.0mm Hope this helps Richard. |
Thanks a lot! It's a little bit tight towards the PCI connector, but it should be doable.
@m3x
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m3x wrote: I may have all the needed info, sources and tools to prepare a new AmigaOne U-Boot version, to be on pair with the Sam version I developed. |
Cool! What version of U-boot did you use?
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Since it isn't a task to be done in a few days, but will requires a certain amount of time and tests, what about to setup a bounty for it? |
I for one would like to see all the A1 and Sam specific changes in the official U-boot GIT repository.
Would it be possible for you to setup an automatic build daemon, that builds OS4 enabled U-boot images from time to time (and makes them available for OS4 users), so that everyone can contribute bugfixes etc.?
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I'll release source code (as already done with the Sam version) and if possible, I'll prepare an AmigaOS enabled image later. |
Thanks!
Last edited by Geri on 03-Feb-2010 at 02:22 PM.
_________________
A1SE: G3@600MHz, 2GB, 1GBit network card
A1XE: G4@933MHz, 2GB, refitted AC'97 codec
microA1: G3@800MHz, 1GB
- A1 Linux support - |
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