[U-Boot-Users] U-BOOT for MPC885 Eval board
Hi,
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 DRAM: (8 MB SDRAM) 8 MB 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?
thanks, Sachin mehta
Sachin S Mehta writes:
Sachin> Hi, We are using MPC885ADS Eval. board ,we are porting Sachin> U-Boot 1.1.1on it and working fine,
What's wrong with the existing port? Version 1.1.1 is too old, and existing port works fine for me.
Sachin> but we have following query
Sachin> 1. When we trying to change serial port from SMC1 to SMC2 by Sachin> defining following in "MPC885ADS.h" :
Sachin> #define CONFIG_8xx_CONS_SMC2 1 /* Console is on SMC2 */ Sachin> #undef CONFIG_8xx_CONS_SMC1 Sachin> #undef CONFIG_8xx_CONS_NONE Sachin> we are not getting anything on serial console.
You can't use FEC2 and SMC2 simultaneously, and the factory DIP switch settings select FEC2. Make sure you've got correct settings and enable SMC2 UART in BCSR.
Sachin> 2. We are getting 8 Mbyte of Flash memory SIMM - Sachin> theRPCF08324NE5BSSG-70 by RPC , which internally Sachin> composed of 16 AM29F040 devices. We are able to Sachin> configure 2 MB Flash memory and working fine. But when Sachin> we are trying to configure for 8MB by changinf following Sachin> in "/board/fads/flash.c : flash_get_size()"
Sachin> info-> sector_count = 32; size = 0x00800000;
Sachin> instead of
Sachin> info-> sector_count = 8; size = 0x00200000;
Sachin> It gives some error as below :
...
Sachin> Has anyone faced same problem?
Probably you didn't change BR0/OR0. Anyway, it works in current version of U-Boot. Make sure that you've got updated BCSR, otherwise you have to modify the SIMM because original BCSR does not recognise this SIMM correctly.
participants (2)
-
Sachin S Mehta -
Yuli Barcohen