Dear Steve, i split the file into two pieces: split rootfs-jffs2.img --bytes=12m so i have two files with xaa(12Mb) and xab(11.5Mb) i was ablt to transfer the first file completely with any problem. but i dont know what to do next. should i transfer the first image in RAM to flash? could you please tell me how many sectors i need erase and from which bank? i am afraid that i may end up erasing the u-boot. thank you. regards, Shareef On Thu, Jun 26, 2008 at 9:41 PM, Steve Poulsen <spoulsen@xxxxxxxxxxxxx> wrote: > Mohammed, > > When you tftp the file to memory, you need to make sure the filesize fits in > the memory available. Since you have experimentally done that and now want > to flash the pieces, I suggest you look at the "split" command under Linux. > You will need to split the file into pieces that fit into RAM and flash at > the proper address. If you split the file into two pieces, then you will > need to flash the first piece at address X and the second piece at address X > + 16meg. You should make sure you split the file on a sector boundary. If > you don't want to think about this, then you should erase/unprotect the > whole area you will need first, then transfer and flash the pieces. You may > want to look at the omapfl utility. With some modification, you could > flash your image more easily via USB. > > Steve > > mohammed shareef wrote: >> >> Hi, >> >> I tried to do the same procedure with a small filesystem image < >> 16Mb... it worked. i didnt have such problems. so could someone please >> tell me how to divide the filesystem image in to two and flash it? >> thank you, >> regards, >> shareef >> >> On Thu, Jun 26, 2008 at 4:36 PM, mohammed shareef <mdshareef@xxxxxxxxx> >> wrote: >> >>> >>> Hi, >>> >>> i did the below. i got an image. but i am still having the same problem >>> >>> my file size is 23Mb >>> >>> [root@localhost tftpboot]# mkfs.jffs2 --squash -r /data/rootfs2.6 >>> -e131072 > /data/rootfs-jffs2.img >>> [root@localhost tftpboot]# cp /data/rootfs-jffs2.img >>> /tftpboot/rootfs-jffs2.img >>> >>> \0x09 ################################################################# >>> \0x09 #############undefined instruction >>> pc : [<e0000004>] lr : [<00000002>] >>> sp : 1103fca4 ip : 11095dd8 fp : 00000001 >>> r10: 10963410 r9 : 1103fd24 r8 : 1103ffdc >>> r7 : 270a30a1 r6 : 8695632d r5 : 08016ffa r4 : 5aebcc39 >>> r3 : 00000032 r2 : 11095dd4 r1 : 000000a0 r0 : 00000000 >>> Flags: nZCv IRQs off FIQs off Mode SVC_32 >>> Resetting CPU ... >>> >>> could you please tell me what i should do. thank you. >>> regards, >>> Shareef >>> >>> >>> >>> On Wed, Jun 25, 2008 at 9:52 PM, Hunter, Jon <jon-hunter@xxxxxx> wrote: >>> >>>>> >>>>> then i changed the filename and the >>>>> tftpboot transfer started. But on the mid-way it complains "undefined >>>>> instruction". >>>>> >>>>> could some one please tell me where the problem is? thank you. >>>>> >>>> >>>> How big is the file that you are attempting to download over tftp? >>>> >>>> U-boot executes in the upper part of the RAM and so if your file is too >>>> big, then there is a good chance you are overwriting u-boot which would >>>> cause u-boot to crash eventually. U-boot does not protect against this. This >>>> would be a potential cause of an undefined instruction exception. >>>> >>>> Jon >>>> >>>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
