[U-Boot-Users] Quick booting

[conn intel]

Dear Jerry Van Baren,

Thanks for your kind and quick response.

I read the thread and it is going to be very useful to me. Can we use DMA to
load image from flash to ram ?

Currently I am using following command to load kernel image from flash to
ram,

bootcmd=nand read.jffs2 0x30007FC0 0x80000 0x153000;bootm 0x30007FC0

Can someone suggest me better way to quicker the process?

Thank you,
Ankur.

On Wed, Feb 27, 2008 at 8:09 AM, Jerry Van Baren <gvb.uboot at gmail.com>
wrote:

> conn intel wrote:
> > Dear Friends,
> >
> > I am using u-boot and it is first loading into the ram from flash and
> > then starts booting. The problem is its taking a lot of time in loading
> > the image from flash to ram and then starts booting from it. Following
> > is the output for printenv variables. I am new to u-boot and thus not
> > much aware of it. On other board there is redboot installed and it loads
> > kernel in just flash and starts booting the kernel.
> >
> > Kindly let me know if you need any information.
> >
> > Thank you,
> > Ankur.
> >
> > # printenv
> > bootargs=root=/dev/mtdblock2 rw init=/linuxrc console=ttyS0,115200
> > mem=32M rootfstype=jffs2
> > bootcmd=nand read.jffs2 0x30007FC0 0x80000 0x300000;bootm 0x30007FC0
>
> Hi Ankur,
>
> I have no experience with NAND/jffs2, but the following thread probably
> applies:
> <http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/32434>
>
> Summary: jffs2 is slow.  The thread has discussion of various options to
> speed up boot time.
>
> Best regards,
> gvb
>
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