Re: [U-Boot] FIT image for falcon boot
Hi York, On 31 March 2017 at 22:49, york sun wrote: > On 03/31/2017 09:21 PM, Simon Glass wrote: >> Hi York, >> >> On 23 March 2017 at 20:06, york sun wrote: >>> Simon, >>> >>> I made it work. A patch set will be sent later (much later) after I >>> clean up and finish the project on hand. >> >> OK, sounds good! >> >> IMO some of the motivation for falcon boot is U-Boot running slowly >> with the cache off :-) > > My target is to boot up Linux under 800ms. I have achieved that but with > minimum Linux drivers loaded. I don't have much time budge for U-Boot. > Falcon boot cuts U-Boot time down to ~400ms (including loading FIT > image). I have cache enabled after loading the trusted firmware (our > implementation) as soon as the DDR is ready. Yes that is a pretty tight limit - sounds like you have things humming nicely! Regards, Simon ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] FIT image for falcon boot
On 03/31/2017 09:21 PM, Simon Glass wrote: > Hi York, > > On 23 March 2017 at 20:06, york sun wrote: >> Simon, >> >> I made it work. A patch set will be sent later (much later) after I >> clean up and finish the project on hand. > > OK, sounds good! > > IMO some of the motivation for falcon boot is U-Boot running slowly > with the cache off :-) My target is to boot up Linux under 800ms. I have achieved that but with minimum Linux drivers loaded. I don't have much time budge for U-Boot. Falcon boot cuts U-Boot time down to ~400ms (including loading FIT image). I have cache enabled after loading the trusted firmware (our implementation) as soon as the DDR is ready. York ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] FIT image for falcon boot
Hi York, On 23 March 2017 at 20:06, york sun wrote: > Simon, > > I made it work. A patch set will be sent later (much later) after I > clean up and finish the project on hand. OK, sounds good! IMO some of the motivation for falcon boot is U-Boot running slowly with the cache off :-) > > York > > On 03/22/2017 04:40 PM, york@nxp.com wrote: >> Guys, >> >> You were discussing loading FIT image for falcon boot about a year ago. >> I wonder if there is any follow-up on this topic? >> >> York >> > Regards, Simon ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] FIT image for falcon boot
Simon, I made it work. A patch set will be sent later (much later) after I clean up and finish the project on hand. York On 03/22/2017 04:40 PM, york@nxp.com wrote: > Guys, > > You were discussing loading FIT image for falcon boot about a year ago. > I wonder if there is any follow-up on this topic? > > York > ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
