Op 10 nov. 2012, om 00:40 heeft Grant Likely <grant.likely@xxxxxxxxxxxx> het volgende geschreven: > On Fri, Nov 9, 2012 at 11:23 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: >> On 11/09/2012 09:28 AM, Grant Likely wrote: >>> On Tue, Nov 6, 2012 at 10:37 PM, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: >> ... >>>> I do rather suspect this use-case is quite common. NVIDIA certainly has >>>> a bunch of development boards with pluggable >>>> PMIC/audio/WiFi/display/..., and I believe there's some ability to >>>> re-use the pluggable components with a variety of base-boards. >>>> >>>> Given people within NVIDIA started talking about this recently, I asked >>>> them to enumerate all the boards we have that support pluggable >>>> components, and how common it is that some boards support being plugged >>>> into different main boards. I don't know when that enumeration will >>>> complete (or even start) but hopefully I can provide some feedback on >>>> how common the use-case is for us once it's done. >>> >>> From your perspective, is it important to use the exact same .dtb >>> overlays for those add-on boards, or is it okay to have a separate >>> build of the overlay for each base tree? >> >> I certainly think it'd be extremely beneficial to use the exact same >> child board .dtb with arbitrary base boards. >> >> Consider something like the Arduino shield connector format, which I >> /believe/ has been re-used across a wide variety of Arduino boards and >> other compatible or imitation boards. Now consider a vendor of an >> Arduino shield. The shield vendor probably wants to publish a single >> .dtb file that works for users irrespective of which board they're using >> it with. >> >> (Well, I'm not sure that Arduino can run Linux; perhaps that's why you >> picked BeagleBone capes for your document!) > > Correct, the Arduino is only an AVR with a tiny amount of ram. No Linux there. > > However, Arduino shields are a good example of a use case. I think > there are even some Arduino shield compatible Linux boards out there. A good example of those would be the Rascal Micro: http://rascalmicro.com/ regards, Koen-- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
