Hi,
I am trying to boot the latest kernel for a MPC5200B based board from DENX. I built the latest UBoot which seems to run fine on my board.
With the new uboot, my same environment variables, I can still boot my old kernel.
U-Boot 1.3.0-rc2-dirty (Sep 24 2007 - 08:08:49)
CPU: MPC5200 v1.2, Core v1.1 at 462 MHz Bus 132 MHz, IPB 132 MHz, PCI 33 MHz Board: MyBoard MPC5200 Controller I2C: 343 kHz, ready DRAM: 128 MB FLASH: 64 MB In: serial Out: serial Err: serial Net: FEC ETHERNET IDE: Bus 0: not available
Type "run net_nfs" to mount root filesystem over NFS
Hit any key to stop autoboot: 0 Using FEC ETHERNET device TFTP from server 192.168.100.102; our IP address is 192.168.100.11 Filename 'uImage'. Load address: 0x200000 Loading: ################################################################# ############################################# done Bytes transferred = 1612360 (189a48 hex) ## Booting image at 00200000 ... Image Name: Linux-2.6.19.2 Created: 2007-09-21 8:11:59 UTC Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1612296 Bytes = 1.5 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK id mach(): done MMU:enter MMU:hw init MMU:mapin MMU:setio MMU:exit setup_arch: enter setup_arch: bootmem arch: exit Linux version 2.6.19.2 (nick@nick_lnx) (gcc version 4.0.0 (DENX ELDK 4.1 4.0.0)) \ #5 Fri Sep 21 04:11:50 EDT 2007 Zone PFN ranges: DMA 0 -> 32768 Normal 32768 -> 32768 early_node_map[1] active PFN ranges 0: 0 -> 32768 Built 1 zonelists. Total pages: 32512 Kernel command line: root=/dev/nfs rw nfsroot=192.168.100.102:/opt/eldk/ppc_6xx \ ip=192.168.100.11:192.168.100.102:192.168.100.102:255.255.255.0:\ MyBoard:eth0:off console=ttyPSC0,115200 panic=1 PID hash table entries: 512 (order: 9, 2048 bytes) I-pipe 1.5-00: pipeline enabled. Console: colour dummy device 80x25
... and the kernel runs fine. With the latest kernel from Denx, I get the following:
U-Boot 1.3.0-rc2-dirty (Sep 24 2007 - 08:08:49)
CPU: MPC5200 v1.2, Core v1.1 at 462 MHz Bus 132 MHz, IPB 132 MHz, PCI 33 MHz Board: MyBoard MPC5200 Controller I2C: 343 kHz, ready DRAM: 128 MB FLASH: 64 MB In: serial Out: serial Err: serial Net: FEC ETHERNET IDE: Bus 0: not available
Type "run net_nfs" to mount root filesystem over NFS
Hit any key to stop autoboot: 0 => boot Using FEC ETHERNET device TFTP from server 192.168.100.102; our IP address is 192.168.100.11 Filename 'uImage'. Load address: 0x200000 Loading: ################################################################# ################## done Bytes transferred = 1212323 (127fa3 hex) ## Booting image at 00200000 ... Image Name: Linux-2.6.23-rc6-gea60adb5-dirty Created: 2007-09-26 9:53:02 UTC Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1212259 Bytes = 1.2 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK
Is there anything special I need to pass to the kernel for setting up the console on the MPC5200B? I had to change ttyS0 to ttyPSC0 for the old console to work. Is there anything I need to enable inside the kernel?
The kernel command line is:
root=/dev/nfs rw nfsroot=192.168.100.102:/opt/eldk/ppc_6xx \ ip=192.168.100.11:192.168.100.102:192.168.100.102:255.255.255.0:\ MyBoard:eth0:off console=ttyPSC0,115200 panic=1
Many thanks,
Nick