From: mike lee <mikelee@avantwave.com>
To: linux-mtd@lists.infradead.org
Subject: Could not write to flash AT49BV6416T
Date: Mon, 07 Nov 2005 18:12:36 +0800 [thread overview]
Message-ID: <436F2894.2040104@avantwave.com> (raw)
Dear all
I can boot linux with this AT49BV6414T flash, but can not erase/write
to the flash. Every time i write to that flash it finish up with
"Input/Output Error".
Below is the debug output of cfi_cmdset0002, it is wrong according
to chip datasheet . I have tried to use JEDEC enabled kernel, the result
is the same.
By the way, that ATMEL flash is CFI version 1.0 , i don't know
whether it is update or not.
---- debug msg ---
NOR Flash 1: Found 1 x16 devices at 0x0 in 16-bit bank
Amd/Fujitsu Extended Query Table at 0x0041
Silicon revision: 87
Address sensitive unlock: Not required
Erase Suspend: Not supported
Block protection: Not supported
Temporary block unprotect: Supported
Block protect/unprotect scheme: 128
Number of simultaneous operations: 3
Burst mode: Supported
Page mode: 1020 word page
Vpp Supply Minimum Program/Erase Voltage: 15.15 V
Vpp Supply Maximum Program/Erase Voltage: 15.15 V
Top/Bottom Boot Block: Unknown value 255
NOR Flash 1: CFI does not contain boot bank location. Assuming top.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
Thanks
Mike Lee
reply other threads:[~2005-11-07 10:22 UTC|newest]
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