Hello:
On Sunday 31 May 2009 12:58:16 jie.zeng wrote:
> Hi list,
>
> I've got a new problem. When I use the command `flash probe 0' after
> telnet to the server. It cannot probe the flash.
>
> My core is arm926ejs and flash used CFI interface, so go into the code
> and I found something is not normal.
>
> # my flash config
> flash bank cfi 0x10000000 0x00800000 2 2 0
What is the addres at which the flash is located and what is its size?. Do
you use a 16bit bus chip/cpu?
>
> At flash/cfi.c
> cfi_probe() {
>
> /* snip */
>
> /* detect manufacturer ID */
> unlock2 = 0x2AA;
> cfi_command(bank, 0x55, command);
> if((retval = write_memory(target, flash_addr(bank, 0, unlock2),
> buf->width, 1, command)) != ERROR_OK)
> {
> return retval;
> }
> /* snip */
>
> }
I can't find this exact code in the file, could you point the line number?
>
> I found the flash_address is not correct(my fault?), and address is
> 0x10000554.
>
> >From cfi flash spec, detect manufacturer ID, the byte addr should be
>
> base + 0x555 I think.
The address depends on your layout, depends on the chip and bus width.
>
> After changed manually, it unlucily... SO, in this function, I adjust
> write_memory() to target_write_u8() and it can probe success.
> I 've no more idea about that.
>
> What's wrong? Is it a bug?
>
> Regards
>
> --
> ZJ
>
Regards,
--
Raúl Sánchez Siles
Departamento de Montaje
INFOGLOBAL, S. A.
* C/ Virgilio, 2. Ciudad de la Imagen.
28223 Pozuelo de Alarcón (Madrid), España
* T: +34 91 506 40 00
* F: +34 91 506 40 01
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