[U-Boot-Users] Uboot over Redboot
Hi all,
We are in the process of comparing Redboot and Universal Boot Loader. My feeling is that Universal boot loader offers more functionalities (POST, active support (pampered by Mr.Wolfgang :-)) and GPL) rather than Redboot. But is there any heavy weighing :-) difference (with respect to performance, size) which will enable me to convince people out here.
Please help me with this.
With Thanks and Best Regards, C.R.Srivatsan
********************************DISCLAIMER**********************************
This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege of Deccanet Designs Ltd. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from retaining, using, copying, altering or disclosing the contents of this message.
****************************************************************************
In message 000201c4ce2d$15dfdfa0$4501a8c0@bgcw301 you wrote:
We are in the process of comparing Redboot and Universal BootLoader. My feeling is that Universal boot loader offers more functionalities (POST, active support (pampered by Mr.Wolfgang :-)) and
The list of functions is probably much longer; think of things like VLAN support...
GPL) rather than Redboot. But is there any heavy weighing :-) difference (with respect to performance, size) which will enable me to convince
U-Boot is typically between 80 ... 230 kB in size, denpending on your configuration. Performance? Hm... what exactly does this mean for a boot loader?
Best regards,
Wolfgang Denk
Thanks Mr.Wolfgang.
Just a bit more. Is there any reference which provides the functionalities supported by uboot of size 80KB?
Performance option was wrong. It doesn't mean anything to the bootloader.
With Thanks and Best Regards, C.R.Srivatsan
-----Original Message----- From: wd@denx.de [mailto:wd@denx.de] Sent: Friday, November 19, 2004 8:59 PM To: Srivatsan Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] Uboot over Redboot
In message 000201c4ce2d$15dfdfa0$4501a8c0@bgcw301 you wrote:
We are in the process of comparing Redboot and Universal BootLoader. My feeling is that Universal boot loader offers more functionalities (POST, active support (pampered by Mr.Wolfgang :-))
and
The list of functions is probably much longer; think of things like VLAN support...
GPL) rather than Redboot. But is there any heavy weighing :-)
difference
(with respect to performance, size) which will enable me to convince
U-Boot is typically between 80 ... 230 kB in size, denpending on your configuration. Performance? Hm... what exactly does this mean for a boot loader?
Best regards,
Wolfgang Denk
In message 000401c4ced5$9c4ffc20$4501a8c0@bgcw301 you wrote:
Just a bit more. Is there any reference which provides the functionalities supported by uboot of size 80KB?
No, but you can easily try it out - chose a board (probably one without embedded environment) and de-select features; build and test.
Performance option was wrong. It doesn't mean anything to the bootloader.
Well, of course the boot loader should not add unnecessary delays to the total boot time.
Best regards,
Wolfgang Denk
On Nov 20, 2004, at 6:26 AM, Wolfgang Denk wrote:
In message 000401c4ced5$9c4ffc20$4501a8c0@bgcw301 you wrote:
Just a bit more. Is there any reference which provides the functionalities supported by uboot of size 80KB?
No, but you can easily try it out - chose a board (probably one without embedded environment) and de-select features; build and test.
Performance option was wrong. It doesn't mean anything to the bootloader.
Well, of course the boot loader should not add unnecessary delays to the total boot time.
To do some justice to u-boot, performance is actually an issue in some areas. For example, on a device with slow flash but fairly fast CPU, being able to compress your OS image then decompress before booting it is quite a performance advantage. In our tests, a gzipped uImage begins booting the OS about 2-5 seconds faster than an unzipped image, depending on how big the kernel is.
C
participants (3)
-
Craig Hughes -
Srivatsan -
Wolfgang Denk