[U-Boot-Users] U-BOOT for MPC885 Eval board

Sachin S Mehta mehtass at myw.ltindia.com
Tue Jul 13 16:07:23 CEST 2004


We  are using MPC885ADS Eval. board ,we are porting  U-Boot 1.1.1on it and working fine,
but we have following query

1. When we trying to change serial port from SMC1 to SMC2  by
  defining following in "MPC885ADS.h" :

	#define	CONFIG_8xx_CONS_SMC2	1	/* Console is on SMC2 */
	#undef	CONFIG_8xx_CONS_SMC1
	#undef	CONFIG_8xx_CONS_NONE	
we are not getting anything  on serial console.

2.  We are getting  8 Mbyte of Flash memory SIMM - theRPCF08324NE5BSSG-70 by RPC , which
internally composed of 16  AM29F040 devices. We are able to configure 2 MB Flash memory 
and working fine. 
But when we are trying to configure for 8MB  by changinf  following in "/board/fads/flash.c : flash_get_size()"

info->sector_count = 32;
info->size = 0x00800000;
instead of 
 info->sector_count = 8;
info->size = 0x00200000;

It gives some error as below :

CPU:   MPC885ZPnn at 120 MHz: 8 kB I-Cache 8 kB D-Cache FEC present
Board: MPC885ADS rev NR
FLASH: Bus Fault @ 0x007f16b4, fixup 0x00000000
Machine check in kernel mode.
Caused by (from msr): regs 00560e18 Unknown values in msr
NIP: 007F16B4 XER: 00000100 LR: 007F168C REGS: 00560e18 TRAP: 0200 DAR: 007FB0EC
MSR: 00001002 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 00000016 00560F08 00000000 00D40000 007FFAF8 007FB000 007FA834 00002088 
GPR08: 00000020 007FFA81 00000016 007FFACC 28000024 00000000 00800000 FDFD6000 
GPR16: 00000000 00800000 00000000 00000020 00000000 00000001 00000000 00000000 
GPR24: FF000100 FFFFFFFF 00000000 00000000 007FFA6C 00560F94 00800DD0 007FFA6C 
Call backtrace: 
005E9814 007F10EC 007D98A0 007D83B0 
machine check

Has anyone faced same problem?

Sachin mehta


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