Hi Chris, On Wed, 17 May 2017 17:39:07 +1200 Chris Packham <chris.pack...@alliedtelesis.co.nz> wrote:
> Setting the of_node for the mtd device allows the generic mtd code to > setup the partitions. Additionally we must specify a non-zero erasesize > for the partitions to be writeable. > > Signed-off-by: Chris Packham <chris.pack...@alliedtelesis.co.nz> > --- > drivers/mtd/devices/mchp23k256.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/mtd/devices/mchp23k256.c > b/drivers/mtd/devices/mchp23k256.c > index 2542f5b8b63f..02c6b9dcbd3e 100644 > --- a/drivers/mtd/devices/mchp23k256.c > +++ b/drivers/mtd/devices/mchp23k256.c > @@ -143,6 +143,7 @@ static int mchp23k256_probe(struct spi_device *spi) > > data = dev_get_platdata(&spi->dev); > > + mtd_set_of_node(&flash->mtd, spi->dev.of_node); > flash->mtd.dev.parent = &spi->dev; > flash->mtd.type = MTD_RAM; > flash->mtd.flags = MTD_CAP_RAM; > @@ -151,6 +152,10 @@ static int mchp23k256_probe(struct spi_device *spi) > flash->mtd._read = mchp23k256_read; > flash->mtd._write = mchp23k256_write; > > + flash->mtd.erasesize = PAGE_SIZE; > + while (flash->mtd.size & (flash->mtd.erasesize - 1)) > + flash->mtd.erasesize >>= 1; > + Can we fix allocate_partition() to properly handle the master->erasesize == 0 case instead of doing that? Thanks, Boris
