Dear apple pie,
Hi Wolfgang,
I have a number of u-boot development questions that I would like to raise to you for answers:
(1) Is it possible to install u-boot in a Windows XP environment? If it is, please tell me the steps to follow. Are they the same as those cut out for Linux?
Well, it's probably possible, but honestly, why?
(2) Is it possible to use 'cgywin' to build u-boot, since 'cgywin' mimicks Linux's environment?
Again, probably -- you can invest some time and try yourself.
(3) Is it possible to directly download an u-boot image onto the RAM space of a customerized development board to debug u-boot? If it is, please list out the steps to follow.
It is possible, but not always and it can have side effects. It is not supported.
(4) What type of u-boot image should be used, if downloading of the u-boot image to the RAM space of the board is via a Lauterbach ICE (a debugger with a JTAG interface)? Normally, a Lauterbach ICE expects a .axf file to be downloaded (axf = archived, executable file), but in the u-boot case, should it be the ELF image u-boot build generates?
No idea, really ... probably u-boot.bin
(5) The intention of the endeavor is to develope some "standalone applications" that allow frequencies/operating-voltages of the CPU & peripherals to be changed, during the time when u-boot is run, such as to measure the performances of the CPU & other peripherals. The existing development board has an ARM Cortex-A9 and a Cortex-R4 running on it.
Why don't you patch uboot itself and submit patches mainline?
(6) Is it possible to make "minor changes" to the u-boot codes, such that controls could be passed back to u-boot at will from an application, which gets executed using the u-boot command: go <address> ? Please elaborate in as much details as possible, if it can. The motivation is that after a change of operating frequencies & voltages of the CPU & peripherals, u-boot command: go <address> would be called to measure performances of the board. Thereafter, control would be returned to u-boot again, such that another set of operating frequencies & voltages could be selected.
Add a standard uboot command, use a standard uboot commands to measure this stuff, why make standalone app, it's nonsense and affects the results too.
(7) Is it possible for a file to be read in, say, from a SD card via u-boot command, since u-boot comes with a SD driver?
Yes
Also, is there any write-up that describes how to search past questions raised by u-boot users? As it stand, I google search seems to be the only way that I could be used to come up with relevant questions associated with a keyword.
How did you register to this mailing list anyway? There are archives at the same place.
Thank you in advance for your help, and looking forward to your reply.
Thanks,
Ivan
Best regards, Marek Vasut