Le 04/04/13 12:56, Michel Stempin a écrit :
Le 27/02/2013 13:46, Jonas Gorski a écrit :
On 27 February 2013 13:25, Florian Fainelli <[email protected]> wrote:
Hello,
On 01/31/2013 11:25 AM, Michel Stempin wrote:
Hi John,
Le 31/01/2013 09:07, John Crispin a écrit :
Hi,
please also send this patch upstream to the mtd list
Ok, but I can't find any upstream patch for the surrounding PMC devices
(pm25lv512 and pm25lv010) commited by jogo in revision 29986 (originally
introduced by nbd in
trunk/target/linux/generic/patches-2.6.39/084-mtd_m25p80_add_pm25lv_flash_support.patch
revision 26615).
How do you want to proceed?
Send these PMC IDs as well with your Signed-off-by and Jonas's Signed-off-by
tag as well.
The patch is not from me, but from Gabor, added in r11894 (see
<https://dev.openwrt.org/changeset/11894/>).
Jonas
I had to integrate the original patch from Gabor, added in r11894 as described above,
but also another one from Gabor too, added in r22861 (see
<https://dev.openwrt.org/changeset/22861/>) to fix erase operation on the
pm25lv flash chips, as in these chips, PMC is using a vendor-specific sector erase
command.
Although it has been verified on many devices it wasn't the same case for the newer
pm25lq032 chip, it was not until yesterday that I was able to find the corresponding
device datasheet (<http://www.issi.com/pdf/Pm25LQ032C.pdf>) to confirm that the
standard sector erase command was supported indeed. Actually, both the standard (20h)
and the proprietary (D7h) sector erase commands are supported, see datasheet page 12.
This datasheet wasn't easy to find, since PMC has been renamed to Chingis Technology Corporation
after a trademark dispute with PMC-Sierra (<http://www.chingistek.com/tw/news_02.asp?seq=6>),
then acquired by ISSI
(<http://phx.corporate-ir.net/phoenix.zhtml?c=68026&p=irol-newsArticle&ID=1716323>).
The patch has been sent upstream to the mtd list with my Signed-off-by and
Gabor's Signed-off-by tag as well:
<http://lists.infradead.org/pipermail/linux-mtd/2013-April/046410.html>
In the meantime, can someone apply the one-line patch to add support for the pm25lq032 to
trunk in the different kernel versions, since it is commonly used as the default SPI
Flash device in the small "3G" RT5350F-based routers like the Hame MPR-A1,
Poray M3, etc.?
Applied in r36296, thanks!
--
Florian
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