* Intel C3 chips
@ 2002-01-21 11:37 Jeroen Roose
2002-01-21 22:09 ` Eric W. Biederman
2002-01-22 3:40 ` Chen Yaoming
0 siblings, 2 replies; 3+ messages in thread
From: Jeroen Roose @ 2002-01-21 11:37 UTC (permalink / raw)
To: linux-mtd
Hello,
We've got a board based on the CDB89712 but using C3 (TE28F320/C3BC90) in
stead of the B3 version. The C3 chip locks all blocks on chip reset. I've
patched the bootloader (hermit) to unlock all blocks on boot.
I've got MTD/JFFS2 working on the board, with the bootloader patch, but I
think MTD should unlock the blocks.
I'm not familiar with the MTD architecture, so I don't no how/where to
implement this, can You help me to point this out ?
Thanks,
Jeroen Roose
chess eT
http://www.chess.nl
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Intel C3 chips
2002-01-21 11:37 Intel C3 chips Jeroen Roose
@ 2002-01-21 22:09 ` Eric W. Biederman
2002-01-22 3:40 ` Chen Yaoming
1 sibling, 0 replies; 3+ messages in thread
From: Eric W. Biederman @ 2002-01-21 22:09 UTC (permalink / raw)
To: Jeroen Roose; +Cc: linux-mtd
Jeroen Roose <Jeroen.Roose@chess.nl> writes:
> Hello,
>
> We've got a board based on the CDB89712 but using C3 (TE28F320/C3BC90) in
> stead of the B3 version. The C3 chip locks all blocks on chip reset. I've
> patched the bootloader (hermit) to unlock all blocks on boot.
> I've got MTD/JFFS2 working on the board, with the bootloader patch, but I
> think MTD should unlock the blocks.
There is code to do that, usually the command is just
unlock /dev/mtd0
> I'm not familiar with the MTD architecture, so I don't no how/where to
> implement this, can You help me to point this out ?
Unless the unlock needs to happen at mount time trace the unlock command.
Eric
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Intel C3 chips
2002-01-21 11:37 Intel C3 chips Jeroen Roose
2002-01-21 22:09 ` Eric W. Biederman
@ 2002-01-22 3:40 ` Chen Yaoming
1 sibling, 0 replies; 3+ messages in thread
From: Chen Yaoming @ 2002-01-22 3:40 UTC (permalink / raw)
To: linux-mtd, Jeroen Roose
MTD can unlock Intel C3 flash, but the code is incomplete. Please look at
drivers/mtd/chips/cfi_cmdset_0001.c
----- Original Message -----
From: "Jeroen Roose" <Jeroen.Roose@chess.nl>
To: <linux-mtd@lists.infradead.org>
Sent: Monday, January 21, 2002 7:37 PM
Subject: Intel C3 chips
> Hello,
>
> We've got a board based on the CDB89712 but using C3 (TE28F320/C3BC90) in
> stead of the B3 version. The C3 chip locks all blocks on chip reset. I've
> patched the bootloader (hermit) to unlock all blocks on boot.
> I've got MTD/JFFS2 working on the board, with the bootloader patch, but I
> think MTD should unlock the blocks.
> I'm not familiar with the MTD architecture, so I don't no how/where to
> implement this, can You help me to point this out ?
>
> Thanks,
>
> Jeroen Roose
>
> chess eT
>
> http://www.chess.nl
>
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-01-21 22:09 ` Eric W. Biederman
2002-01-22 3:40 ` Chen Yaoming
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