saveenv for pandaboard

[V]

how to do the saveenv on pandaboard. want to save new bootargs

Thanks in advance,
Vinod

[Sukumar Ghorai]

pandaboard does not have any eMMC or NAND to save the saveenv
And current u-boot we dont supoprt the saveenv in external eMMC card.
 
So best solution using boot.scr
 boot.scr is the boot script used by u-boot. Basically boot.scr loads the kernel (plus an optional initrd), set the bootargs and jumps into the kernel entry point.

Step-1: create a boot.src.txt as like -
fatload mmc 0 0x80300000 uImage

echo Booting from mmc0 ...

setenv bootargs console=tty02,115200n8 noinitrd init=/sbin/init root=/dev/mmcblk0p2 rootwait rw loglevel=8

bootm 80300000

 

Step-2: run

mkimage -A arm -T script -O linux -C none -a 0 -e 0 -n "boot.scr" -d boot.scr.txt boot.scr

 

Step-3:

copy boot.scr along with MLO, u-boot and uImage in MMC/SD boot partition.

 

Regards
Ghorai

[Sukumar Ghorai]

Hi,

with correctioin ..

pandaboard does not have any eMMC or NAND to save the saveenv

And current u-boot we dont supoprt the saveenv in external MMC/SD card.

 
So best solution using boot.scr
 boot.scr is the boot script used by u-boot. Basically boot.scr loads the kernel (plus an optional initrd), set the bootargs and jumps into the kernel entry point.

[Paul Claessen]

REMOVE ME

 

[srinidhi]

Patches are welcome :-). Saveenv s not there in current u boot you can use boot.scr instead

Srinidhi
Sent from Nokia Phone

[srinidhi]

Even ping from u boot doesnt work right? Also what should be enabled in config file in kernel to enable ethernet. I wanna use nfs mount
Thanks

Srinidhi
Sent from Nokia Phone
-----Original Message-----

From: Sukumar Ghorai
Sent: 07/01/2011 6:43:58 pm
Subject: Re: [pandaboard] saveenv for pandaboard

pandaboard does not have any eMMC or NAND to save the saveenv

And current u-boot we dont supoprt the saveenv in external eMMC card.

So best solution using boot.scr
boot.scr is the boot script used by u-boot. Basically boot.scr loads the
kernel (plus an optional initrd), set the bootargs and jumps into the kernel
entry point.

Step-1: create a boot.src.txt as like -
fatload mmc 0 0x80300000 uImage
echo Booting from mmc0 ...
setenv bootargs console=tty02,115200n8 noinitrd init=/sbin/init
root=/dev/mmcblk0p2 rootwait rw loglevel=8
bootm 80300000

Step-2: run
mkimage -A arm -T script -O linux -C none -a 0 -e 0 -n "boot.scr" -d
boot.scr.txt boot.scr

Step-3:
copy boot.scr along with MLO, u-boot and uImage in MMC/SD boot partition.

Regards
Ghorai

On Fri, Jan 7, 2011 at 4:15 PM, V <vino...@gmail.com> wrote:

[Anand Gadiyar]

Enable CONFIG_USB_EHCI_HCD and CONFIG_USB_EHCI_HCD_OMAP3 to get the
EHCI driver built-in, and CONFIG_USB_NET_SMSC95XX for the ethernet
controller.

(CONFIG_USB_EHCI_HCD_OMAP3 might be CONFIG_USB_EHCI_HCD_OMAP depending
on which kernel version you're using).

[srinidhi]

Thanks for the reply. I am using 2.6.35 kernel. I have enabled all the listed features. But ethernet s not getting initialised during boot.
Geetha had uploaded a patch which should enable ethernet in android_panda_defconfig. Even that s not working. The only kernel image in which ethernet gettin initialised is pre built kernel image with gfx enabled in it.

[Thondar, Geetha]

Srinidhi
I tested the kernel with the latest pull and Ethernet works fine. Are you using "ip=dhcp" in your boot args?

I have tested pinging other ips in the network. Internet browsing should work too.

Are you trying NFS? We haven't tested NFS on Pandroid.

Thanks
Geetha

[srinidhi]

Hi Geetha,
I am using ip="static ip address"

This boot arg works fine with uImage _gfx for nfs mount.
Is there any way to get config file of uImage_gfx? I am curious to learn how one works with nfs mount but not other, for the same boot arg.

[Srinidhi K V]

This is the boot argument i am using

setenv bootargs 'mem=463M init=/init noinitrd console=ttyO2,115200n8 root=/dev/nfs nfsroot=192.168.0.162:/nfsboot/android_panda/ rw ip=192.168.0.29:192.168.0.162:192.168.0.1:255.255.255.0:panda:usb0:off nolock, rootwait vram=16M,omapfb.vram=0:5M,1:5M '

192.168.0.29 - Panda IP ; 192.168.0.162- Host IP ; 162:192.168.0.1 - Gateway IP : Netmask :255.255.255.0

Srinidhi

[Thondar, Geetha]

Srinidhi,
Which release is uImage_gfx from? I don't see it in the downloads list and I think it is in one of the tar files. Please refer to the release number and pick the corresponding kernel from http://gitorious.org/pandroid/kernel-omap
Please compare that config with the current config to see what the difference is.

[srinidhi]

Hi Geetha,
Kernel which i was referring to is L 27.5.2(2.6.32). Yeah as you said it comes in tar file. Tar contains two kernels uImage and uImage_gfx.
Ya i ll diff two config files and will check out the difference. Thanks for the pointer.

[Thondar, Geetha]

Srinishi,
Details on L27.5.2 kernel...
http://omappedia.org/wiki/OMAP_Pandroid_Main#Kernel

source: git://gitorious.org/pandroid/kernel-omap
branch: origin/L27.5.2_panda
board config: android_4430panda_defconfig

[srinidhi]

Yeah i have already created local branch of this. I ll check out the difference.
Thanks

[Srinidhi K V]

Hi Geetha,
I could fix the problem, but the cause seems to be very peculiar for me
Ethernet gets initialized (with android_panda_defconfig) and NFS mount is success every time but fails only when i use MLO which i have built.

How did I build X-loader?
source: git://gitorious.org/pandaboard/x-loader.git
branch: origin/omap4_panda_L24.9
config: omap4430panda_config

I am unable to figure it out how they are linked. But that is what I have observed after some permutation and combinations.

Thanks
Srinidhi

[Thondar, Geetha]

To build X-loader…

http://www.omapedia.org/wiki/Bootloader_Project#Building_Xloader

 

---

[Srinidhi K V]

Hi Geetha,

That is how I built X-loader with the config setting given in this link
http://www.omappedia.com/wiki/OMAP_Pandroid_Main#Bootloader

Thanks
Srinidhi

[luca ellero]

Hi everybody,
I have seen that there are two version of x-loader supporting pandaboard:

http://gitorious.org/x-loader (omap4_panda_L24.9 branch, and also others)

http://gitorious.org/pandaboard/x-loader (master branch)

it seems that the first one is better because it distinguish between
versions 2.0 and 2.1.

Which one should be used?

Thanks

Regards
Luca Ellero

[Joshi, Vikas]

Probably use the one mentioned on the wiki: http://omappedia.org/wiki/PandaBoard - follow links for source trees and then for bootloader.
Helps keep wiki up-to-date too!

Vikas

[luca ellero]

Thanks Vikas
Luca