> Do you have a kernel and ramdisk and kernel > command line that works on your board?
Yes, i have a working 3.0. kernel and ramdisk.img it is an android image. Linux version 3.0.15 (root@yicsystem) (gcc version 4.4.3 (GCC) ) #1 SMP PREEMPT Thu Apr 25 14:28:59 KST 2013 > kernel command line # cat /proc/cmdline console=ttySAC1,115200n8 vmalloc=512M androidboot.console=ttySAC1 i built a kernel with same string. > Also is U-Boot and the kernel > mainline? u-boot based on U-Boot 2012.12-00000-g462762b-dirty with yse5250 platform changes And i tried a mainline u-boot and it's does not working. Just an empty screen on terminal window. 2014/1/17 Detlev Zundel <d...@denx.de> > Hi Alexander, > > > Also if flashed 3.12_zImage (same kernel, same sources, just zImage) > > Ok, zImage doesn't have the uImage header, so we will not see any > information nor will U-Boot be able to verify a checksum there. > > > reading kernel..device 0 Start 1063, Count 16384 > > MMC read: dev # 0, block # 1063, count 16384 ... 16384 blocks read: OK > > completed > > reading RFS..device 0 Count 17447, Start 2048 > > MMC read: dev # 0, block # 17447, count 2048 ... 2048 blocks read: OK > > completed > > Boot with zImage > > Wrong Ramdisk Image Format > > Note that you also have a problem with your ramdisk, even if the kernel > starts, it will likely not do much if it needs the ramdisk. > > > Starting kernel ... > > > > > > And it's stucked at "Starting kernel ..." > > Let's say "we don't see anything after Starting kernel ....". This is > also a common case when the kernel cannot open an initial console. It > may well be that the kernel runs but without a console you will see > nothing. To diagnose this you'd need to be sure that "bootargs" is > setup properly before booting the kernel. > > Let's step back a bit. Do you have a kernel and ramdisk and kernel > command line that works on your board? I.e. do we have a "working case" > that we can retreat to for further tests? Also is U-Boot and the kernel > mainline? > > Cheers > Detlev > > -- > The management question ... is not _whether_ to build a pilot system > and throw it away. You _will_ do that. The only question is whether to > plan in advance to build a throwaway, or to promise to deliver the > throwaway to customers. - Fred Brooks, "The Mythical Man Month" > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: d...@denx.de >
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