On Jun 25, 2013, at 6:08 PM, Bo Shen wrote: > Hi Larry Baker, > > On 06/26/2013 02:02 AM, Larry Baker wrote: >> On 24 Jun 2013, at 1:22 AM, Bo Shen wrote: >> >>> Hi Larry Baker, >>> >>> On 6/24/2013 16:02, Larry Baker wrote: >>>> I have found why the latest U-Boot does not work on my Glomation >>>> GESBC-9G20 board. Two causes: a bad code text segment address >>>> (prevents U-Boot from executing) and bad flash partition offsets >>>> (prevents U-Boot from reading its environment variables). The latter >>>> I assume is common, as the flash partition layout can vary. The >>>> former has to do with where the primary boot loader expects to find >>>> U-Boot's entry point. The primary boot loader comes from Atmel, I >>>> believe, and I assume does not change. Yet, the 2011.06 release of >>>> U-Boot changed that address. (FYI: the two immediately preceding >>>> releases, 2010.12 and 2011.03, fail to compile with configuration >>>> errors. There were definitely changes taking place during that time >>>> with the Atmel AT91SAM U-Boot code.) That may be a bug. I don't >>>> know who the authority on that question would be. If it is decided >>>> the U-Boot code text segment address is incorrect, it wold be nice to >>>> fix that in the upcoming release. (If there is time.) >>> >>> For the text base, why we use 0x21f00000 instead of 0x23f00000 is >>> that, the memory only 64MiB on at91sam9g20ek board, if use 0x23f00000 >>> as the text base, there is only 1MiB reserved for u-boot use. So, we >>> move down to let more space for u-boot. >>> >>> For the NAND partition, as to the u-boot grow bigger and bigger, so we >>> reserve more space for it. >>> >>> BTW, when you upgrade the u-boot, please also upgrade the bootstrap. >>> we always keep the update bootstrap work with mainline u-boot properly. >>> >> >> Will AT91loader be updated when U-Boot 2013.07 is released? If not, I >> will put the current AT91loader on my board with U-Boot 2013.04 now. > > As Andreas described in previous e-mail, you can find the newest bootstrap at > [1].
Yes, thank you. But, my question is, will AT91loader be updated when U-Boot 2013.07 is released? If yes, I will wait. If no, I will use what you is available now. You have said that one should update the loader when U-Boot is updated. This is what I wish to do. > [1] https://github.com/linux4sam/at91bootstrap > > Best Regards, > Bo Shen > Thank you, Larry Baker US Geological Survey 650-329-5608 ba...@usgs.gov _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
