Rick, I have custom board with DRAM starting at 0x00000000 - 0x20000000 so I could not load it to 0x80000000 since I do not have that much memory. I noticed in your report that the load address is 0x80000000 but the kernel image was built with: Load Address: 80008000 Entry Point: 80008000. I was wondering what does your bootm command line looks like and if yours bootargs look like mine? Ogi
Rick Ball wrote: > > I think you want to load the kernel to memory at 0x00000000, even though > the u-boot load address is set to 0x8000 - my kernel, which I load to > memory at 0x80000000 because that's where my SDRAM is, looks like this: > > Load address: 0x80000000 > Loading: ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ########################## > done > Bytes transferred = 2128612 (207ae4 hex) > ## Booting kernel from Legacy Image at 80000000 ... > Image Name: Linux-2.6.29-rc3-omap1 > Image Type: ARM Linux Kernel Image (uncompressed) > Data Size: 2128548 Bytes = 2 MB > Load Address: 80008000 > Entry Point: 80008000 > Verifying Checksum ... OK > Loading Kernel Image ... OK > OK > > Starting kernel ... > > Uncompressing > Linux........................................................................................................................................... > done, booting the kernel. > > > Rick > > -----Original Message----- > From: u-boot-boun...@lists.denx.de [mailto:u-boot-boun...@lists.denx.de] > On Behalf Of Marek Vasut > Sent: Wednesday, April 28, 2010 2:35 PM > To: u-boot@lists.denx.de > Cc: ogara > Subject: Re: [U-Boot] trying to bring linux-2.6.32.3 from RAM? > > Dne St 28. dubna 2010 20:50:35 ogara napsal(a): >> Hi All, >> I am trying to bring linux from RAM. I have compiled the kernel and >> created uImage. I bring the image over tftp into the memory and then >> execute bootm memaddress. Unfortunately here is the output from my >> command line: >> >> tftp 0x8000 ipaddress:uImage >> Using egiga0 device >> TFTP from server ipaddress; our IP address is ipaddress; sending >> through gateway ipaddress Filename 'uImage'. >> Load address: 0x8000 >> Loading: >> ################################################################# >> >> ################################################################# >> >> ################################################################# >> ################### >> done >> Bytes transferred = 3132020 (2fca74 hex) bootm 0x8000 ## Booting >> kernel from Legacy Image at 00008000 ... >> Image Name: Linux-2.6.32.3 >> Created: 2010-04-28 18:44:34 UTC >> Image Type: ARM Linux Kernel Image (uncompressed) >> Data Size: 3131956 Bytes = 3 MB >> Load Address: 00008000 >> Entry Point: 00008000 >> Verifying Checksum ... OK >> XIP Kernel Image ... OK >> OK >> >> Starting kernel ... >> >> undefined instruction >> pc : [<00008008>] lr : [<00647d1c>] >> sp : 005ffce8 ip : 000008e0 fp : 000006fc >> r10: 00724db0 r9 : 005fff90 r8 : 005fffcc >> r7 : 00000002 r6 : 0072372d r5 : 00000154 r4 : 00000000 >> r3 : 00008000 r2 : 00000100 r1 : 000006fc r0 : 0001c200 >> Flags: nZCv IRQs off FIQs off Mode SVC_32 Resetting CPU ... >> >> Now, the image is good for sure because I do not have issues bringing >> this image from the hard drive. Do I need anything else (ftd or >> ramdisc) to boot from RAM or the procedure presented is correct? >> my bootargs are: >> bootargs=console ttyS0,115200 root /dev/ram rw >> >> Thank you for your help, >> Ogi > > Hi, the image is probably corrupted ? Also, why do you load it to 0x8000 ? > It's relocated anyway, but this way it has to be relocated twice) > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot > > -- View this message in context: http://old.nabble.com/trying-to-bring-linux-2.6.32.3-from-RAM--tp28392641p28393589.html Sent from the Uboot - Users mailing list archive at Nabble.com. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
