If that is the case, it's OK. So if the memory chip containing bootloader will get damaged we can still use the phone? 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.
Best regards, 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 > >
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