[U-Boot-Users] error while running hello_world standalone program
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 ?
Hi Light King (is this a calory reduced monarch?) ;)
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
The standalone application needs to be linked to a static address. If you look into the Makefile in examples, you'll see that for your board "LOAD_ADDR = 0xc100000", i.e. that's where the binary _can_ run. If this is not RAM on your system, adjust the makefile, rebuild the app, load it at that address and then run from there. retry.
Cheers Detlev
participants (2)
-
Detlev Zundel -
Light King