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RE: Problem in modify ecos for EDB7312


Are you initializing the sdram controller? You can't use the on board
sdram until you do, and chances are gdb wont load at all until sdram is
available.

> -----Original Message-----
> From: Peihong Li [mailto:liphhz@yahoo.com]
> Sent: Monday, September 03, 2001 10:56 AM
> To: ecos-discuss@sources.redhat.com
> Subject: [ECOS] Problem in modify ecos for EDB7312
> 
> 
> All,
> I am trying to modify ecos V1.3 (based on the
> edb7212's) for my edb7312. What I have done on
> hal_platform_setup.h is as follow:
>  
> ......
>  #define INIT_MEMORY_CONFIG         \
>  /* Initialize memory configuration  ;\
>  ldr r1,=MEMCFG1            ;\
>  //*** ldr r2,=0x8200A080         ;\
>  ldr r2,=0x1f101710 ;\
>  str r2,[r1]                 ;\
>  ldr r1,=MEMCFG2             ;\
>  //*** ldr r2,=0xFEFC0000     ;\
>  ldr r2,=0x00001f13     ;\
>  str r2,[r1]            ;\
>  //*** ldr r1,=DRFPR          ;\
>  //*** ldr r2,=0x81 /*DRAM refresh=64KHz */      ;\
>  //*** strb r2,[r1] ;\
>  ldr r1,=0x80002300 ;\
>  ldr r2,=0x00000522 ;\
>  str r2,[r1] ;\
>  ldr r1,=0x80002340 ;\
>  ldr r2,=0x00000240 ;\
>  str r2,[r1]
>  #endif
> ......
> 
> But it still cannot connect with arm-elf-gdb. Who can
> tell me why?
> 
> Thanks,
> 
> Peihong Li
> 
> 
> 
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