On 2/11/10 4:08 PM, David Hendricks wrote:
Okay, so I applied the same changes to the W25x16 and got good results. It looks like the same applies to the W25x{16,32,64} products in addition to the W25x{10,20,40,80}. Please update the patch to include the additional chips.

W25x{16,32,64} datasheet: http://www.winbond-usa.com/products/Nexflash/pdfs/datasheets/W25X16_32_64h.pdf

On Thu, Feb 11, 2010 at 3:56 PM, David Hendricks <[email protected] <mailto:[email protected]>> wrote:

    D'oh! I just realized that this patch doesn't affect the x16. I
    really ought to read the patch more carefully...


    On Thu, Feb 11, 2010 at 3:50 PM, David Hendricks
    <[email protected] <mailto:[email protected]>> wrote:

        On Sun, Jan 31, 2010 at 6:31 PM, Sean Nelson
        <[email protected] <mailto:[email protected]>> wrote:

            Fix erase blocks for Winbond W25X* SPI chips. The Winbond
            W25X10 and related chips only have 4k and 64k blocks and
            only accept erase commands: 20h, d8h, and c7h.

            Signed-off-by: Sean Nelson <[email protected]
            <mailto:[email protected]>>


        Tested on a W25x16 flash chip using an NM10 southbridge.
        Verbose flashrom -E log attached. Following an erase with a
        read, the image produced turns up all 0xFF bytes. The warnings
        reported seem benign, and probably have more to do with the
        NM10 than the flash chip...

        Acked by: David Hendricks <[email protected]
        <mailto:[email protected]>>

-- David Hendricks (dhendrix)
        Systems Software Engineer, Google Inc.




-- David Hendricks (dhendrix)
    Systems Software Engineer, Google Inc.




--
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
The W25x16 and the W25x16BV use the exact same chip ids but the W25x16BV supports the already defined erase commands.
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