Re: [U-Boot-Users] Help required to bring up kernel from U-Boot
flat view
From: Wolfgang Denk <hidden>
Date: 2005-12-16 10:11:04
Also in:
u-boot
In message [ref] you wrote:
I copied uImage to location 0x04000000 and the Load Address=0x00000000 and Entry point=0x00000000. The bootm 0x04000000 gives the o/p "Transferring Control to Linux" and then nothing comes. Where is the wrong?
This is a FAQ. Please see http://www.denx.de/wiki/DULG/Faq
1. What are the minimum information Linux needs from U-Boot to come up properly? In the Linux source tree we have put some printk statement and found that base address of SDRAM, size, etc are passed correctly to Linux by U-Boot.
Be careful with printk() at inappropieate places (i.e. too early). But tell me - how where you able to see anthing with printk if "nothing comes" as you write above ???
2. Is the info passed from U-Boot is sufficient enough to make the kernel up?
Yes, of course. It works on thousands of systems.
3. If not, where should I concentrate in Linux tree?
On your changes. And please keep this off the U-Boot list. It is off topic here. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de CONSUMER NOTICE: Because of the "Uncertainty Principle," It Is Impossible for the Consumer to Find Out at the Same Time Both Precisely Where This Product Is and How Fast It Is Moving.