Messages in this thread | | | Date | Sat, 15 Aug 2015 10:38:59 +0200 | From | Alexis Ballier <> | Subject | Re: [PATCH] mtd: spi-nor: Add support for sst25wf020a. |
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On Fri, 14 Aug 2015 22:45:14 +0200 Marek Vasut <marex@denx.de> wrote:
> On Friday, August 14, 2015 at 07:35:39 PM, Alexis Ballier wrote: > > It is a 256KiB flash with 4 KiB erase sectors > > and 64KiB overlay blocks. > > > > This is the one available on Hardkernel's Odroid U3 shield. > > > > Signed-off-by: Alexis Ballier <aballier@gentoo.org> > > --- > > drivers/mtd/spi-nor/spi-nor.c | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/mtd/spi-nor/spi-nor.c > > b/drivers/mtd/spi-nor/spi-nor.c index d78831b..e521b35 100644 > > --- a/drivers/mtd/spi-nor/spi-nor.c > > +++ b/drivers/mtd/spi-nor/spi-nor.c > > @@ -636,6 +636,7 @@ static const struct spi_device_id spi_nor_ids[] > > = { { "sst25wf512", INFO(0xbf2501, 0, 64 * 1024, 1, SECT_4K | > > SST_WRITE) > }, > > { "sst25wf010", INFO(0xbf2502, 0, 64 * 1024, 2, SECT_4K > > | SST_WRITE) > }, > > { "sst25wf020", INFO(0xbf2503, 0, 64 * 1024, 4, SECT_4K > > | SST_WRITE) > }, > > + { "sst25wf020a", INFO(0x621612, 0, 64 * 1024, 4, > > SECT_4K) }, > > Is the SST_WRITE not needed on this device ?
Tried that at first and it didn't work (writes were silently not performed).
I'm no expert here, but I don't see anything about auto address increment in the spec: http://ww1.microchip.com/downloads/en/DeviceDoc/20005139E.pdf and it uses the page program command (0x02).
Alexis.
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