Problem booting linux-2.4.4-2001-07-23 on EST SBC8260 with ppcboot 1.0.4

[Craig MacDonald]

I am trying to get linux 2.4 running on an EST SBC8260.
It seems others have this board working correctly, so
I must be doing something wrong.
It works up to executing the rfi in turn_on_mmu, but
it doesn't seem to reach start_here.

I have modified linux to use the correct bd_info structure
in ppcboot.h and the immr_base value. Below is some information
from ppcboot.


PPCBoot 1.0.4 (Aug 12 2001 - 07:16:41)

MPC8260 Reset Status: External Soft

MPC8260 Clock Configuration
 - Bus-to-Core Mult 4x, VCO Div 2, 60x Bus Freq  25-75 , Core Freq 100-300
 - dfbrg 0, corecnf 0x0a, busdf 3, cpmdf 1, plldf 0, pllmf 1
 - vco_out  132000000, cpm_clk   66000000, bus_clk   33000000
 - scc_clk   33000000, brg_clk   33000000, cpu_clk  132000000

CPU:   MPC8260 (Rev 01, Mask A.1 1K22A-XC) at 132 MHz
Board: EST SBC8260
DRAM:  32 MB
FLASH:  4 MB
BEDBUG Ready
In:    serial
Out:   serial
Err:   serial

bdinfo
------------------------
memstart    = 0x00000000
memsize     = 0x02000000
flashstart  = 0xfff00000
flashsize   = 0x00400000
flashoffset = 0x00040000
sramstart   = 0x00000000
sramsize    = 0x00000000
immr_base   = 0x0f000000
bootflags   = 0x00000001
intfreq     =    132 MHz
busfreq     =     33 MHz
ethaddr     = 00:02:6A:00:00:55
  IP addr     = 10.0.0.62
  baudrate    =  19200 bps
getc        = 0x01fd0ec8
tstc        = 0x01fd0ef8
putc        = 0x01fd0e18
puts        = 0x01fd0e84
printf      = 0x01fcd57c
install_hdlr= 0x01fd1a74
free_hdlr   = 0x01fd1b14
malloc      = 0x01fcbfe4

TFTP from server 10.0.0.12; our IP address is 10.0.0.62
Filename 'linux'.
Load address: 0x100000
Loading: /
done
Bytes transferred = 458355 (6fe73 hex)
free        = 0x01fcc4d8
## Booting image at 00100000 ...
   Image Name:   linux 2.4
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    458291 Bytes = 447 kB = 0 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK

Thanks,
Craig MacDonald


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