On Wed, 2013-09-18 at 22:43 -0400, Dorin D wrote: > I am working on bringing up two Linux systems, both based on Freescale > PowerPC devices, one is a MPC8349, the other a P1020. I was able to > build, install and boot the kernel on both cards. The kernel is 2.6.32 > and the toolchains are coming from the LTIBs packages from > Freescale. > > Both cards have a 32 MByte NOR flash memory (AMD) boot flash. I have > Uboot, kernel, RAM disk image and DTB in the boot flash and I want to > use the spare space (about 20 MBytes) as flash file system. > > I have the following problem : the P1020 board boots fine using the > RAM disk with the flash in the device tree , shows the flash device > partitions (JFFS2) and DOESN"T try to mount a flash partition as root. > The MPC8349 boots fine from the RAM disk but, after identifying the > flash partitions, the kernel panics because is looking for a flash > partition to mount as root partition and none of them is usable (not > formatted). If I remove the flash from the device tree, the card boots > fine using the RAM disk. > > > I am not too familiar with Linux boot scripts and I didn't figure out > where I can disable this tentative of mounting the MTD partition. I > want the boards to boot and mount the RAM disk, as the P1020 board > does. The flash partition will be initialized and mounted at a later > time, but not as root partition.
Compare the kernel command line and kernel config for the two boards; there's probably a relevant difference there (especially with the "root=" parameter). -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
