[U-Boot-Users] Booting MPC8266ads kernel

[Currie Reid]

Hello,

I am trying to find anyone who has had success in using u-boot to boot an
MPC8266ads kernel to give me a pointer or 2 in the right direction.  I
have rsync'd the latest 2.4 development kernel from penguinppc.org as it
contains the appropriate drivers etc. for the board and have u-boot
running on the board now.  However, when I tftp the kernel to the board
and try to bootm, I get:

Uncompressing Kernel Image ... OK

and then no progress from there.  Looking through the users list and the
README file, I noticed that the the bd_info has to be the same between
u-boot.h and the kernel's appropriate header file; there is also some
recommendations with regards to the "clocks_in_mhz" option and the
synchronization of IMAP_ADDR and CFG_IMMR.  I have also built the kernel
by hand using the system detailed in the u-boot README file, with the
objcopy;gzip -9; mkimage, all to no avail.  If anyone has any insight in
this regard, I would very much appreciate it.

Thanks in advance,

Currie Reid

.........................................................................

U-Boot 0.3.0 (Jun 15 2003 - 18:36:34)

MPC8260 Reset Status: Check Stop, External Soft, External Hard

MPC8260 Clock Configuration
 - Bus-to-Core Mult 3x, VCO Div 2, 60x Bus Freq  33-100, Core Freq 100-300
 - dfbrg 0, corecnf 0x08, busdf 3, cpmdf 1, plldf 0, pllmf 1
 - vco_out  266666664, scc_clk   66666666, brg_clk   66666666
 - cpu_clk  199999998, cpm_clk  133333332, bus_clk   66666666

CPU:   MPC8260 (Rev 14, Mask unknown [immr=0x0062,k=0x002d]) at 199.999
MHz
Board: Motorola MPC8266ADS
I2C:   ready
DRAM:  SDRAM configuration read from SPD
        Size per side = 16MB
        Organization: 1 sides, 2 banks, 9 Columns, 11 Rows, Data width =
64 bits
        Refresh rate = 16, CAS latency = 3
        Total size: 16 MB
FLASH:  8 MB
In:    serial
Out:   serial
Err:   serial
Net:   FCC2 ETHERNET
=> tftp
ARP broadcast 1
TFTP from server 47.129.82.27; our IP address is 47.129.82.129
Filename '/tftpboot/uImage.MPC8266'.
Load address: 0x100000
Loading: #################################################################
         ################################################
done
Bytes transferred = 575660 (8c8ac hex)
=> printenv
bootdelay=5
serial#=MCP8266ADS-PCI 0210
ethaddr=4A:DC:16:9D:37:D8
baudrate=57600
hostname=pcary3h5
bootfile=/tftpboot/uImage.MPC8266
rootpath=/export/47.129.82.129
filesize=8c8b0
gatewayip=47.129.82.1
netmask=255.255.255.0
ipaddr=47.129.82.129
serverip=47.129.82.27
bootargs=root=/dev/nfs rw nfsroot=$(serverip):$(rootpath)
ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off
stdin=serial
stdout=serial
stderr=serial
clocks_in_mhz=1
=> bootm
## Booting image at 00100000 ...
   Image Name:   Linux 2.4.21 - MPC8266ads
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    575596 Bytes = 562.1 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK