Help Cross compiling a kernel for an HP Jornada 728 Post: 302360863

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Operating Systems Linux Help Cross compiling a kernel for an HP Jornada 728 Post 302360863 by semash! on Sunday 11th of October 2009 01:15:58 AM

10-11-2009

Registered User

Help Cross compiling a kernel for an HP Jornada 728

Hello,
I just bought an old Jornada 728 and, as you may know, it comes with Windows CE 3.0. I do not use Windows, so i wanted to create my own linux system for the Jornada.

I know there are projects like Jlime, Familiar Linux, 720 Degrees, etc. But i want something based on the distribution i use, Slackware and made by myself.

My problem is weird, i have a gcc compiler for ARM platform (arm-linux-gcc) and i'm using linux kernel version 2.6.30.5. Here are the steps i follow:
(on /home/linux-2.6.30.5/)

1. make mrproper
2. cp arch/arm/configs/jornada720_defconfig .config
So i use a default configuration kernel for that computer, it should work as is, but doesn't.

3. make ARCH=arm CROSS_COMPILE=/path/to/arm-linux- menuconfig
I configure the kernel to fit my needs...
4. make

Now i have a zImage created on arch/arm/boot/, so i copy it to the Jornada CompactFlash memory. This Kernel image is supposed to be loaded from WinCE by a program called linexec.exe, it uses a params.txt file, which i have configured as follows:

\Storage Card\zImage
\Storage Card\initrd.gz

Three days ago, i successfully created a bootable kernel on the Jornada, it hanged at loading the initial ramdisk, but IT WORKED, there appeared tux on the display, loaded the TCP/IP stack, etc. The thing is that now i am not able to make a working kernel!, i compile it, and when loading from the device, the WinCE hangs and does nothing, or the linexec.exe shows a black screen as if it was going to boot, but nothing shows up or happens.

The processor is a StronARM SA-1110, and yes, i configure the kernel with support for SA-1111 and SA-1100 based processors.

My questions are:

-Is there a reason for a kernel to not be "bootable" on that device?
-Which steps am i passing by to make the kernel work, if any?
-Can you please guide me on successfully compile a kernel for this computer?

Please excuse my poor english, it's not my mother language.
Thanks in advance.

semash!

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uipaq

UIPAQ(4)						   BSD Kernel Interfaces Manual 						  UIPAQ(4)

NAME

     uipaq -- USB support for iPAQ units

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device uipaq
	   device ucom

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   uipaq_load="YES"

HARDWARE

     The uipaq driver supports the following adapters:

	   ASUS P535 PDA
	   Casio BE300 PDA
	   Compaq IPaq PocketPC
	   HP Jornada 568
	   HP iPAQ 22xx/Jornada 548
	   HTC PPC6700 Modem
	   HTC Smart Phone
	   HTC Winmobile
	   Sharp W-ZERO3 ES Spart Phone
	   Most Windows CE based phones

DESCRIPTION

     The uipaq driver provides support for the USB serial emulation provided by the iPAQ devices.

     The device is accessed through the ucom(4) driver which makes it behave like a tty(4).

SEE ALSO

     tty(4), ucom(4), uhub(4), usb(4)

HISTORY

     The FreeBSD support was imported from NetBSD for FreeBSD 7.0.  NetBSD added support in NetBSD 4.0 and it was imported from OpenBSD 3.8.

BSD
								  August 24, 2008							       BSD