Hi, I want to add some packages to the root JFFS2 image of OM-2007.2 and try them in the emulator. With my packages addes the image has a size of around 51 MiB. This is too large for the default flash memory.
I decided to modify qemu and let it use a 128 MiB model (change 0x76 to 0x79 as third argument to nand_init() in neo1973.c). After that a small change was neccessary to the qemu/openmoko/Makefile to let it create a bigger image. Instead of # Neo NAND is 128k sectors big cat .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec > $@ Do: # Neo NAND is 128k sectors big cat .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec .16ksec > .128ksec cat .128ksec .128ksec > $@ When flashing the big image everything look fine first. But when the rootfs is going to be flashed qemu detects that something is wrong and jumps (= no crash) out like this: qemu: fatal: Bad mode 0 R00=00000000 R01=00000000 R02=00000000 R03=00000000 R04=00000000 R05=00000000 R06=00000000 R07=00000000 R08=00000000 R09=00000000 R10=00000000 R11=00000000 R12=00000000 R13=00000000 R14=00000000 R15=33f80040 PSR=000001d3 ---- A svc32 s00=00000000( 0) s01=00000000( 0) d00=0000000000000000( 0) s02=00000000( 0) s03=00000000( 0) d01=0000000000000000( 0) s04=00000000( 0) s05=00000000( 0) d02=0000000000000000( 0) s06=00000000( 0) s07=00000000( 0) d03=0000000000000000( 0) s08=00000000( 0) s09=00000000( 0) d04=0000000000000000( 0) s10=00000000( 0) s11=00000000( 0) d05=0000000000000000( 0) s12=00000000( 0) s13=00000000( 0) d06=0000000000000000( 0) s14=00000000( 0) s15=00000000( 0) d07=0000000000000000( 0) s16=00000000( 0) s17=00000000( 0) d08=0000000000000000( 0) s18=00000000( 0) s19=00000000( 0) d09=0000000000000000( 0) s20=00000000( 0) s21=00000000( 0) d10=0000000000000000( 0) s22=00000000( 0) s23=00000000( 0) d11=0000000000000000( 0) s24=00000000( 0) s25=00000000( 0) d12=0000000000000000( 0) s26=00000000( 0) s27=00000000( 0) d13=0000000000000000( 0) s28=00000000( 0) s29=00000000( 0) d14=0000000000000000( 0) s30=00000000( 0) s31=00000000( 0) d15=0000000000000000( 0) FPSCR: 00000000 The interesting thing is that I get the same error when configuring the emulated neo with a 64MiB flash and try to flash a too large rootfs. Do I need to modify something else? Is something wrong with the changes I made? Or is uboot's nand write command simply broken? Regards Robert -- tarent Gesellschaft für Softwareentwicklung und IT-Beratung mbH Heilsbachstr. 24, 53123 Bonn | Poststr. 4-5, 10178 Berlin fon: +49(228) / 52675-0 | fon: +49(30) / 27594853 fax: +49(228) / 52675-25 | fax: +49(30) / 78709617 durchwahl: +49(228) / 52675-17 | mobil: +49(171) / 7673249 Geschäftsführer: Boris Esser, Elmar Geese, Thomas Müller-Ackermann HRB AG Bonn 5168 Ust-ID: DE122264941
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