Hi, Am 13.05.2015 um 08:38 schrieb Liviu Farbas <[email protected]>:
> If that is the case, it's OK. So if the memory chip containing bootloader > will get damaged we can still use the phone? > Yes. You can even reflash the NAND image (it is “unbrickable” by design). > My main idea was to have 2 SD card slots: one for the card with the > bootloader and operating system, and one with the card for the file storage. > Ah I see. Well, we don’t have the space in the Freerunner plastics case and the OMAP3 has no spare MMC interface (one is for the uSD and the other one for the WiFi SDIO; the third MMC I/F is not available to pinmux restrictions). > Best regards, > > BR and thanks for your suggestions, Nikolaus > Liviu > > On May 12, 2015 8:52 PM, "Dr. H. Nikolaus Schaller" <[email protected]> > wrote: > Hi, > > Am 12.05.2015 um 19:37 schrieb Liviu Farbas <[email protected]>: > >> i was thinking at something like the Raspberry Pi, which does not have any >> memory built in, and everythin including bootloader is stored on sd card. >> > What would be the benefit? > > On the GTA04 you can store bootloader and kernel either in NAND or uSD or > both. By pressing the AUX button you can choose which memory the system boots > from. > > And, the NAND and the RAM are combined in a single multi-chip-module, so you > can’t remove just the NAND. You can erase it and then it will be skipped when > booting. So this would simulate a non-existing chip. > > IMHO a mix of boot loader in NAND and kernel/device-tree/rootfs on uSD is the > most flexible setup so that you can simply swap SD cards for different OS > versions to run. > Please also note that having the boot loader on the SD card requires a > two-parition layout and is quite inflexible. We have a tool that can > partition and format and fill SD cards in quite flexible choices [1]. > > So what are you missing or trying to improve? > > BR, > Nikolaus > > [1]: http://projects.goldelico.com/p/gta04-makesd/ > > > >> On May 12, 2015 11:37 AM, "Dr. H. Nikolaus Schaller" <[email protected]> >> wrote: >> Hi, >> the GTA04A5 has a NAND flash of 512 MB and a uSD reader up to 32 GB (see >> photos on www.gta04.org). The NAND flash is mainly used for the boot loader >> and a small rescue Linux system but real OS operation is done by swapping >> such uSD cards. So you can for example have a uSD card for Replicant and >> another one for QtMoko. Or put both on one in different partitions. >> >> BR, >> Nikolaus >> >> Am 12.05.2015 um 10:12 schrieb Liviu Farbas <[email protected]>: >> >>> What about the emmc module? Will that module be removable? Or instead a >>> built in emmc, wouldn't be a better choice to add a SD card slot? It would >>> be really great to experiment with operating systems without the risk of >>> corrupting the emmc. >>> >>> Best regards, >>> >>> Liviu >>> >>> On May 11, 2015 10:37 AM, "Dr. H. Nikolaus Schaller" <[email protected]> >>> wrote: >>> Hi all, >>> you may wonder what is going on with this project. Did it turn into a black >>> hole? Or >>> did someone do a “rm -rf /“ :) >>> >>> No, nothing of that. Therefore, I think we owe you some short status update >>> on this project. >>> >>> There hasn’t been much to report in the last months, but now we have >>> several news >>> within some days. >>> >>> 1. I have checked again and we can still get the GTM601W, but the >>> distributor says >>> the risk is high that OPTION declares EOL any time and in that case we >>> would have >>> to make an order of at least 3000 units so that they restart production >>> just for us. >>> >>> This means we must secure these modules for us now, since there is no >>> replacement >>> that easily fits into the space constraints of the GTA04 (resp. GTA01/02 >>> board). >>> >>> Cinterion modules would be nice since they are planned for the Pyra and >>> the Neo900, >>> but they are approx. 10% too big. >>> >>> 2. we see some difficulties in getting the W2SG0084 GPS module, but that is >>> some >>> paperwork the distributor has to do with Wi2Wi. >>> >>> Nevertheless, this is also a risk candidate for EOL because only one >>> distributor shows >>> stock. >>> >>> 3. There are also good news: >>> we participate in the risk buy of Samsung 1GB RAM+512MB NAND chips (as >>> planned for the Neo900). So the GAT04A5 gets twice as much RAM :) >>> >>> This chip has already been tested by reworking a BeagleBoard XM and >>> modifying >>> the boot loader (kernel didn’t find the NAND yet, but U-Boot did. This >>> is a problem >>> that will jointly be fixed with the Neo900 software team). >>> >>> 4. Production: we still are a little away from the quorum of 100 preorders >>> (at the >>> moment of this writing we have estimated approx. half = 45 units). So >>> it is still >>> not possible to make final decisions about production dates and final >>> pricing. >>> >>> So we need to get a little more support for our project. If you have >>> ideas, please >>> let us know or start activities. Many small activities are as good as a >>> big one! >>> And we know that this is a niche product that requires an existing >>> GTA01/02 >>> device. So it is not possible to “attract the masses”. We must find and >>> convince >>> the previous GTA01/02 owners whose devices are collecting dust. There >>> had been >>> produced ca. 15k such devices so that we just need another 1/3% or in >>> other >>> words only 1 out of 300 GTA02 owners needs to decide for a GTA04A5. >>> >>> 5. Regarding the risk buy of the GTM601W, RAM chips and W2SG0084, I plan to >>> take the budget (~5100 EUR) that we already have collected. >>> >>> This will transform the vouchers into ownership of components. So it >>> has the >>> consequence that we can’t refund in money (cash, bank transfer) any >>> more, but >>> only in unused hardware components (i.e. 100 EUR ~ >>> 1*GTM601+1*RAM+1*GPS)… >>> >>> For future preorder vouchers you would also buy such a component set >>> (which we >>> would keep in safe warehouse of course) until we can really build the >>> whole devices. >>> >>> >>> So quite some news and I would be happy if we can fill up the missing >>> preorders [1] >>> sooner than later so that we can start production. Please think about >>> securing your >>> set of components for the last production batch of the most open smartphone >>> platform >>> that we already have. >>> >>> BR and thanks for continued support, >>> Nikolaus Schaller >>> >>> [1]: http://shop.goldelico.com/wiki.php?page=GTA04A5 >>> _______________________________________________ >>> Community mailing list >>> [email protected] >>> http://lists.goldelico.com/mailman/listinfo.cgi/community >>> http://www.openphoenux.org >>> _______________________________________________ >>> Community mailing list >>> [email protected] >>> http://lists.goldelico.com/mailman/listinfo.cgi/community >>> http://www.openphoenux.org >> >> >> _______________________________________________ >> Community mailing list >> [email protected] >> http://lists.goldelico.com/mailman/listinfo.cgi/community >> http://www.openphoenux.org >> >> _______________________________________________ >> Community mailing list >> [email protected] >> http://lists.goldelico.com/mailman/listinfo.cgi/community >> http://www.openphoenux.org > > > _______________________________________________ > Community mailing list > [email protected] > http://lists.goldelico.com/mailman/listinfo.cgi/community > http://www.openphoenux.org > > _______________________________________________ > Community mailing list > [email protected] > http://lists.goldelico.com/mailman/listinfo.cgi/community > http://www.openphoenux.org
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