On 07/12/2017 01:46 PM, 张释文 wrote:
On 07/12/2017 04:06 PM, Łukasz Majewski wrote:
On 07/12/2017 04:13 AM, shiwen wrote:
Hi all,
This is Shiwen, good morning! :)
I wan to do fast boot for arm , but I am not familiar with U-boot, as
title says, I'm curious that U-boot for smdk2410 allow snapshot
restoration? If allowed, can you tell me witch function do this work?
Any advice will be appreciated, thanks.
You can look for SPL u-boot, which should allow you rapid loading of
Linux.
Could you tell me more about this? Any docs or explanation will be fine,
thanks.
You can poke for info on the Internet.
For example:
http://www.wiki.xilinx.com/U-Boot+Secondary+Program+Loader
http://xillybus.com/tutorials/uboot-hacking-howto-3
However, I'm not sure if smdk2410 supports it out of the box.
You mus evaluate it by yourself.
Alright, I try.
The Boot sequence:
PWR on -> Rom BOOT (in SoC ROM) -> SPL (tiny u-boot with enough code to
start console, DDR, etc) -> u-boot (full-blow version with FS, network
support) -> Linux.
You can omit the "u-boot" step with SPL and boot much way faster.
I'm not sure for 100%, but some other Samsung/Hardkernel boards have
some binary blobs instead of SPL and hence they only use "full" u-boot.
Have a nice day!
Cheers,
Shiwen
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Lukasz Majewski
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