Dear All,
I m newly using U-Boot in a customised platform of processor Intel xscale PXA255.
U-Boot 1.1.6 (Jul 28 2008 - 10:01:53) is running in this board . In this board one external 64 mb RAM is there and one 64 mb flash is there .
RAM address is starting from 0xA0000000 . Flash address is starting from 0x00000000 .
I m compiling the U-Boot source with arm-linux-gcc toolchain 3.4.1 .
then I m transfering the hello_world.bin image to the board through serial . If I downloading this image to any RAM address and executing from there by go command then board is rebooting . If I m trying to download to 0x40000 adress ( given by the U-Boot document ) and trying to execute from that adddress then it is giving some garbage output . plz help me about this
I ve another customise board of ATMEL9263 controller . there also same version U-Boot is running . There also I m facing same problem . Can any one help me about this . Actually my aim is to run any standalone program in U-Boot .
another question is U-Boot uses direct physical address to control the peripherals or it uses page mapping (virtual memory) for the applications ?