Hi, On 10/09/2015 03:02 PM, Simon Glass wrote: > +Marcel who is the maintainer
Marcel? :-) > > Hi, > > On 8 October 2015 at 14:56, ba_f <b...@rbg.informatik.tu-darmstadt.de> wrote: >> >> Hello, >> >> >> i have an issue with different U-Boot versions, and i have no clue what's >> the problem. >> Maybe someone's got an idea? >> >> Working on Xilinx' ARM Platform i use U-Boot version >> u-boot-xlnx-xilinx-v14.6.01, and it's all good with that one and even lower >> versions. >> But, using u-boot-xlnx-xilinx-v14.7 or higher results in serious CPU errors: This issue shouldn't be discussed in this mailing list as Simon pointed out. It is related to Xilinx and pretty ancient version. >> >> uboot> fatload mmc 0 0x00ffffc0 bootstrap.uimage >> reading bootstrap.uimage >> 6139968 bytes read in 528 ms (11.1 MiB/s) >> uboot> go 0x01000000 > > What is that bootstrap program? Maybe you need to turn off the cache > before starting it with the 'dcache off' command? yes, likely this is a problem. There is one related problem to this which is also in mainline u-boot. When you load stuff from non volatile memories sometimes u-boot does cache flush and sometimes not. I am not sure if all RAW accesses (e.g. MMC, Sata) have cache flush but reading from FS doesn't have it. I would try what Simon suggested which is disable dcache and also load image via tftp for example. Thanks, Michal -- Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91 w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/ Maintainer of Linux kernel - Xilinx Zynq ARM architecture Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform
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