The Sources on CVS contain scripts that will automatically fetch and compile all the software dependencies used while building the bootimage. Read the README file and peruse the Makefile for details. The resulting bootimage plus bootloader executable can easily fit within 2.5MB of vfat partition on a CompactFlash card.
Check our project status page to see what remains to be done. For details, see TODO file in our sources. You may join our mailing-lists to discuss your progress and blocks if you're doing any serious hacking with our code base. You may join the project if you want -- just show us your code, create a sf.net account, tell us the username, and we'll add you.
> Incidentally, I talked to HP the other day and asked > about detailed hardware specs, and they > basically said, "If you're not M$ we ain't talking > to you." > *** Joseph Knapka *** linux-sh mailing list (22 Aug 2000).
Our current bootloader is hpcboot from NetBSD (compiled binary). Oleg Gusev tailored a modified version for the Jornada 820 -- beg the sources from him!
Oleg recommends that we should switch to linexec in the future. A fork of linexec named j820boot is now in our CVS.
For now, so as to compile hpcboot, you will need the old version of Embedded Visual C++ 3.0 on ftp.microsoft.com (hint EN_WINCE_EMBDVTOOLS30.exe), it includes the WinCE 2.11 SDK.
GNU binutils support 'arm-wince-pe' since ages, and gcc-3.4.0 is supposed to have the 'arm-wince-pe' target (I have not tested it). The free software solution is not far away, but needs your help ;-) See for instance this page (and download here).
vaddr paddr size 80000000 00000000 00000020 rom 32mb 82000000 12000000 00000020 ??? 32mb 84000000 18000000 00000004 sa1101 regs 4mb 84800000 1a000000 00000004 ??? 4mb 84c00000 1b000000 00000004 ??? 4mb 90000000 20000000 00000020 pcmcia s1 io 32mb 92000000 24000000 00000020 reserved 94000000 28000000 00000020 attr 96000000 2c000000 00000020 mem 98000000 30000000 00000020 pcmcia s0 io 32mb 9a000000 34000000 00000020 reserved 9c000000 38000000 00000020 attr 9e000000 3c000000 00000020 mem 85000000 80000000 00000004 sa1100 pcmr 4mb 85400000 90000000 00000004 sa1100 scmr 4mb 85800000 a0000000 00000004 sa1100 mecm 4mb 85c00000 b0000000 00000004 sa1100 lcddma 4mb 88000000 c0000000 00000010 ram bank0 16mb 8b000000 c8000000 00000010 ram bank1 16mb 89000000 d0000000 00000010 ram bank2 16mb 8a000000 d8000000 00000010 ram bank3 16mb 8c000000 e0000000 00000010 zero 16mb
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