> Just as Johannes said. In my patch m25p80's changes is incomplete. > Because my inicial aim is to add the transfer width member to tell controller > the mode flash in. And I will attach new patch about m25p80 later. > Also you are right. There are really series of flashes do not support > dual/quad > transfer. So I don't know whether there are any standard for serial-flash just > like the CFI for parallel-flash. Personally, to make a general standard and > a general code for serial-flash is necessary. So that we do not need to add > special function in m25p80.c. > [Pekon]: Does below generic framework for spianand, suit your driver? http://lists.infradead.org/pipermail/linux-mtd/2013-July/047434.html
you should be able to extend the generic spinand API for all serial modes (SPI, Dual-SPI, Quad-SPI). As QSPI and Dual-SPI devices should implicitly support SPI (MISO/MOSI) So, you can do device probing using default SPI mode. And then based on DT inputs and device support upgrade to QSPI / Dual-SPI mode. And going forward extend it for direct memory-mapped device for XIP. with regards, pekon ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
