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Project Wiki on Sf.net

See project wiki on sf.net - http://linux-on-sx1.wiki.sourceforge.net

LINUX ON SX1 HOW-TO

( by Vladimir Ananiev, Vovan888 at gmail dot com )

Tools needed:

firmware patch for loading uboot

uboot source

uboot precompiled binary

uboot sx1 patch: sx1.uboot.patch.v1.8.sxp

minicom

kermit

sx1.uboot.pdf

patch-2.6.15-rc4-omap1

patch-2.6.15-sx1

config-kernel

config-busybox

config-buildroot

arm-linux toolchain

Detecting amount of
internal flash
To determine amount of SX1 internal flash you should read
value at address 0x44 (0x50000044 in Symbian). You can use FCAMem for this, or
Uboot.
SX1# md 44

- should give you a value at 0x44. Then if it is 0x01000000 - you are lucky
to have 32Mb flash, if 0x04000000 - you have old 24Mb strataflash.

Bootloader
Universal
bootloader (U-Boot) has SX1 support. First copy sx1 uboot patch to uboot-1.1.4
dir and apply it

cat patch-1.1.4-sx1  | patch -p1

Then type:

make SX1_config
make

Now you have u-boot.bin ready. Then apply firmware patch
sx1.uboot.patch.v1.8.sxp to original SX1 fw 15, it installs u-boot binary into
disk Z replacing file z:\system\data\testserver.mbm. You should know how to
apply patches, if not - visit http://forum.oslik.ru/. After all this stuff
you should have uboot running when pressing 9 + CAMERA buttons. Remember to plug
in standart USB cable. To work with uboot console your linux kernel on host
machine should have "usbserial" compiled as module and loaded with commands:

rmmod usbserial
rmmod cdc_acm
modprobe usbserial vendor=0x0525 product=0xA4A6

Now after starting uboot you should see messages with "ttyUSB0" in system
log. Read sx1.uboot.pdf for complete instructions on how to work with uboot.

Kernel
Put kernel
patches into the 2.6.15-rc4 kernel sources:
cat patch-2.6.15-rc4-omap1 | patch -p1
cat patch-2.6.15-sx1 | patch -p1

Then copy kernel-config to .config and place it into kernel source dir. Run

make menuconfig
make

Alternatively you can use script mkimage.kernel.sh. It uses "mkimage" from
uboot/tools. It will copy uImage (kernel binary in uboot format) to your home
dir.

XIP Kernel
To make use
of XIP kernel you should flash it into internal flash. Connect to u-boot
console, then do from it:
SX1# loadb
press Ctrl+A S, select uxipimage.bin,wait while uploading
SX1# protect off 1:192-214
SX1# erase 1:192-214
SX1# cp.b 10000000 01800000 $(filesize)
SX1# protect on all
SX1# setenv bootcmd bootm 01800000
SX1# saveenv

SX1# boot

Now you should see linux kernel booting on SX1 LCD!

Running linux

Your host machine should have NFS server up and running. Unpack root
filesystem image to /rootfs and export it with NFS - add this line to
/etc/exports

/rootfs *(rw,sync,no_root_squash)

Start uboot, then from uboot console:

SX1# setenv bootargs root=/dev/nfs rw nfsroot=1.1.1.1:/rootfs,rsize=1024,wsize=1024,nolock ip=1.1.1.2
SX1# saveenv
SX1# loadb

now press Ctrl-A + S, choose uImage and send it to SX1.

SX1# bootm

now you will see kernel booting on SX1 LCD screen.

Exit from uboot (Ctrl-A + X). Kernel uses USB Gadget Ethernet to establish
network communication with host. So after a few seconds you should see new
network device on host - usb0 attached in system logs. You should configure it
with IP adress:

ifconfig usb0 1.1.1.1

Now you should see kernel continue booting with NFS. Then it will be Busybox
invitation on LCD. By default there is telnetd running on SX1, so you can login
to it:

telnet 1.1.1.2
login: root
password: oslik
SX1 >

For developers

By default keypad CAMERA key is binded to "soft reset" function. So after you
see some error and want to get back to uboot simply press CAMERA + 9.

For Loading from Symbian
UbootLoader v.1.4

Prepare: 1. Creating on you MMC card next portition:

1)Ext2 2)Fat16 3)Swup

2. Unpack on Ext2 last rootfs.tar 3. Unpack on Fat16 last ubootloader.zip:

1)E:\Load_uboot.exe

E:\System\libs\uboot.ldd
2) Download last u-boot and kernel linux for
sx1.

Put files to root MMC card: E:\u-boot.bin E:\uImage.bin

*4. For stable work qtopia need:

1) Rename "Load_uboot.exe" to "starter.exe" 2) Put file "starter.exe" on
E:\System\Programs\ 3) Turn off phone, Turn on phone.. and Linux Started Now.

MoinMoin
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