Document:	Flashing Linux image and filesystem

Copyright (c) 2007, Voipac Technologies a.s.


Ensure you have working TFTP server, e.g. atftpd.

Download Linux kernel and filesystem image and move them to TFTP directory.
There should be directory e.g. /tftpboot in case of atftpd on debian.

bash$> wget http://voipac.com/downloads/pxa/270/dimm/bin/linux/zImage-2.6.19-vpac1.bin
bash$> wget http://voipac.com/downloads/pxa/270/dimm/bin/linux/rootfs-mini1-jffs2.bin
bash$> mv zImage-2.6.19-vpac1.bin rootfs-mini1-jffs2.bin /tftpboot

Set serverip in u-boot environment to match TFTP server IP address.

u-boot> set serverip 192.168.1.65
u-boot> save

Erase entire flash but not bootloader (u-boot is stored in first four 32kB blocks).

u-boot> erase 1:4-

Now, download images one by one and copy them from RAM to flash.

u-boot> tftp zImage-2.6.19-vpac1.bin ; cp.b $(fileaddr) 20000 $(filesize)
dm9000 i/o: 0x8000300 (32bit), id: 0x90000a46
MAC: 00:01:02:03:04:05
operating at 100M full duplex mode
TFTP from server 192.168.1.65; our IP address is 192.168.1.49
Filename 'zImage-2.6.19-vpac1.bin'.
Load address: 0xa1000000
Loading: #################################################################
         #################################################################
         ################################################
done
Bytes transferred = 906920 (dd6a8 hex)


u-boot> tftp rootfs-mini1-jffs2.bin; cp.b $(fileaddr) 100000 $(filesize)

WARNNING:

The latest zImage-2.6.21-vpac1.bin has size of 1 MB and so MTD layout was changed.
You should copy rootfs-mini1-jffs2.bin to address 0x120000 instead of 0x100000.


Enable autostart by setting bootcmd in u-boot environment.

u-boot> set bootcmd wtags\; go 20000
u-boot> save

Reset the baseboard by RESET button on front panel.

You should see Linux kernel booting, login as user root with password root.
For first time JFFS2 driver formats fresh erased flash memory, it can take a while.