Dear Angelo, In message <20121123225721.GA28751@angel3> you wrote: > > i have found out that this issue was also and probably mainly caused > from the issue fixed in my last patch posted: > > http://patchwork.ozlabs.org/patch/201421/ > > All serial driver routines (for mcfuart.c in my case) was executed > from the flash memory, even after monitor relocation to ram. > > Considering flash memory access time (10 wait states set in my case), > this was causing code execution speed to be dramatically slow, near the > limit for receiving at 115200 uart speed. > > Enabling cache for the sdram fasted up a bit the operations and solved > the issue, but main problem here was certainly the execution from flash.
Thanks for following up on this! Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de I often quote myself; it adds spice to my conversation. - G. B. Shaw _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
