Hi Kevin, On 9 December 2014 at 17:03, Kevin Hilman <[email protected]> wrote:
> Simon Glass <[email protected]> writes: > > > On 8 December 2014 at 18:27, Kevin Hilman <[email protected]> wrote: > >> > > [...] > > >> So is secure-mode enabled before BL2 is started? Or do you mean BL2 is > >> where secure-mode is enabled? If it's done in BL2, and if the > >> hardkernel folks are willing to sign BL2 images (which I gathered from > >> discussions elsewhere in this series) then it seems possible to turn off > >> secure-mode. > > > > Yes it is possible - and easy - to do in BL2 / U-Boot SPL. This is > > what the Chromebooks do. > > OK, good. > > >> > >> So I went to look in the u-boot-samsung repo and didn't see the code for > >> the SPL there. Is the BL2 source (which I understood to be u-boot SPL) > >> in some other repo? > > > > > > It's in mainline U-Boot so no particular need to go to the Samsung > > tree. > > I went to the samsung tree since the cover letter for this series > pointed me there. But I just tried the latest version of this series > (v11) using mainlin u-boot. Thanks for the pointer. > > > See arch/arm/cpu/armv7/exynos/spl_boot.c and tzpc.c for the > > TrustZone stuff. > > OK, thanks. Any pointers on how to get this building with mainline > u-boot? Just adding CONFIG_SPL to odroid_xu3.h doesn't seem to work > (compile errors.) I'm quite comfortable in the kernel, but I'm not very > familiar with u-boot, especially SPL. > It's normally automatic unless some special disabling was done - see spl/u-boot-spl.bin in the output. You need to sign it though :-( > >> > It takes us back to the 1960s where we sent off our code at night to > >> > run it :-) > >> > > >> > I think the best bet is the current effort to mainline the rest of the > >> > Chromebook code then try to build it for XU3. > >> > >> What's the status of that effort? > > > > Coming along but the big/little support is still not there. The > > display works and most core peripherals. Needs more SPL work. > > OK, I'll be glad to be a beta tester if/when you get to that point. > > Thanks, > > Kevin > Regards, Simon
_______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
