"No Flash Chips Recognized." error.

"No Flash Chips Recognized." error.

[Chung Ming]

Hi.

I just got two brand new of DoC Millenium (8 MB), and everytime I modprobe
docprobe I see

"DiskOnChip found at address 0xE0000"
No Flash Chips Recognized.
"DiskOnChip found at address 0xE2000"
No Flash Chips Recognized.
.
.
"DiskOnChip found at address 0xEE000"
No Flash Chips Recognized.

I also couldn't compile mtd/util/ but I think it shoudln't hurt DoC
detection?

Regards.

Ming.

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

On Mon, 11 Feb 2002, Chung Ming wrote:

> "DiskOnChip found at address 0xEE000"
> No Flash Chips Recognized.

Try this and tell me what it says...

Index: doc2001.c
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/devices/doc2001.c,v
retrieving revision 1.35
diff -u -r1.35 doc2001.c
--- doc2001.c	2001/10/02 15:05:13	1.35
+++ doc2001.c	2002/02/11 14:02:35
@@ -228,8 +228,10 @@
 		}
 	}
 
-	if (nand_flash_ids[i].name == NULL)
+	if (nand_flash_ids[i].name == NULL) {
+		printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");
 		return 0;
+	}
 	else
 		return 1;
 }



-- 
dwmw2

Re: "No Flash Chips Recognized." error.

[Chung Ming]

Hi David, now I can't get any reply from this DoC millenium, no "DiskOnChip
found at address.." anymore just "possible DoC with unknow chipID found at
....." .

I wonder if DoC got damaged or they just keep using different flash? I will
buy a new one and test again.

Regards.

Ming.


----- Original Message -----
From: David Woodhouse
To: Chung Ming
Cc: linux-mtd@lists.infradead.org
Sent: Monday, February 11, 2002 9:58 PM
Subject: Re: "No Flash Chips Recognized." error.


On Mon, 11 Feb 2002, Chung Ming wrote:

> "DiskOnChip found at address 0xEE000"
> No Flash Chips Recognized.

Try this and tell me what it says...

Index: doc2001.c
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/devices/doc2001.c,v
retrieving revision 1.35
diff -u -r1.35 doc2001.c
--- doc2001.c 2001/10/02 15:05:13 1.35
+++ doc2001.c 2002/02/11 14:02:35
@@ -228,8 +228,10 @@
  }
  }

- if (nand_flash_ids[i].name == NULL)
+ if (nand_flash_ids[i].name == NULL) {
+ printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");
  return 0;
+ }
  else
  return 1;
 }



--
dwmw2


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http://lists.infradead.org/mailman/listinfo/linux-mtd/

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

min@hello.org said:
> Hi David, now I can't get any reply from this DoC millenium, no
> "DiskOnChip found at address.." anymore just "possible DoC with unknow
> chipID found at ....." . 

At what physical address is the DiskOnChip? 

--
dwmw2

Re: "No Flash Chips Recognized." error.

[Chung Ming]

Hi! I got

Chip with mfr c6dc5eb4, id 00 unknown. Tell dwmw2

regards!
Ming.

----- Original Message ----- 
From: David Woodhouse 
To: Chung Ming 
Cc: linux-mtd@lists.infradead.org 
Sent: Monday, February 11, 2002 9:58 PM
Subject: Re: "No Flash Chips Recognized." error.


On Mon, 11 Feb 2002, Chung Ming wrote:

> "DiskOnChip found at address 0xE0000"
> No Flash Chips Recognized.

Try this and tell me what it says...

Index: doc2001.c
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/devices/doc2001.c,v
retrieving revision 1.35
diff -u -r1.35 doc2001.c
--- doc2001.c 2001/10/02 15:05:13 1.35
+++ doc2001.c 2002/02/11 14:02:35
@@ -228,8 +228,10 @@
  }
  }
 
- if (nand_flash_ids[i].name == NULL)
+ if (nand_flash_ids[i].name == NULL) {
+ printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");
  return 0;
+ }
  else
  return 1;
 }



-- 
dwmw2

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

+ printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");

Oops. Try it with the numbers in :)

--
dwmw2

Re: "No Flash Chips Recognized." error.

[Chung Ming]

Yes, I have this:
_______________________________________________________________

                     doc->id = id;
                        doc->chipshift = nand_flash_ids[i].chipshift;
                        break;
                }
        }

        if (nand_flash_ids[i].name == NULL)
                {
                printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");
                return 0;
                }
        else
                return 1;
}

_________________________________________________________________
still shows the same :(


----- Original Message -----
From: David Woodhouse
To: Chung Ming
Cc: linux-mtd@lists.infradead.org
Sent: Tuesday, February 19, 2002 3:14 AM
Subject: Re: "No Flash Chips Recognized." error.



+ printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");

Oops. Try it with the numbers in :)

--
dwmw2



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Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

min@hello.org said:
> Yes, I have this: 
>       printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n");

It's still printing two random values off the stack instead of the actual 
mfr and id values. Add the actual numbers.

	printk("Chip with mfr %02x, id %02x unknown. Tell dwmw2\n", mfr, id);

--
dwmw2

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

min@hello.org said:
> ahhh!! ok,now I got 
> mfr = 98, ID = 98.

Hmmm. That's odd - getting the same value for the chip ID as for the 
manufacturer looks suspicious. Precisely what model/size of DiskOnChip is 
this?

--
dwmw2

Re: "No Flash Chips Recognized." error.

[Chung Ming]

It's a M-sys DoC Millenium, 8MB,  MD-2800-D08, I have tried dozens of times,
and one time I got accidentally detected it, then I can't detect again, I am
not sure if this is a hardware problem, or maybe this parts is dead ?

Regards.

Ming.


----- Original Message -----
From: David Woodhouse
To: Chung Ming
Cc: linux-mtd@lists.infradead.org
Sent: Wednesday, February 20, 2002 4:51 PM
Subject: Re: "No Flash Chips Recognized." error.



min@hello.org said:
> ahhh!! ok,now I got
> mfr = 98, ID = 98.

Hmmm. That's odd - getting the same value for the chip ID as for the
manufacturer looks suspicious. Precisely what model/size of DiskOnChip is
this?

--
dwmw2

Re: "No Flash Chips Recognized." error.

[David Woodhouse]

min@hello.org said:
> It's a M-sys DoC Millenium, 8MB,  MD-2800-D08, I have tried dozens of
> times, and one time I got accidentally detected it, then I can't
> detect again, I am not sure if this is a hardware problem, or maybe
> this parts is dead ?

Very strange. Maybe it's a timing problem. Ollie?

--
dwmw2

Re: "No Flash Chips Recognized." error.

[Chung Ming]

Got it working after replace a new DoC Millenium. that DoC was DIED. so we
can found it but with strange IDs that not recognized by MTD.

Thank you very much for help me, david.

----- Original Message -----
From: David Woodhouse
To: Chung Ming
Cc: linux-mtd@lists.infradead.org
Sent: Thursday, February 21, 2002 4:30 PM
Subject: Re: "No Flash Chips Recognized." error.



min@hello.org said:
> It's a M-sys DoC Millenium, 8MB,  MD-2800-D08, I have tried dozens of
> times, and one time I got accidentally detected it, then I can't
> detect again, I am not sure if this is a hardware problem, or maybe
> this parts is dead ?

Very strange. Maybe it's a timing problem. Ollie?

--
dwmw2



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Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/