On Wed, Sep 18, 2019 at 01:59:06PM +0800, Ramuthevar, Vadivel MuruganX wrote: > On 17/9/2019 11:36 PM, Mark Brown wrote: > > On Tue, Sep 17, 2019 at 10:11:28AM +0800, Ramuthevar, Vadivel MuruganX wrote: > > > * spi-cadence.c* in *drivers/spi/*, which supports very old legacy > > > cadence-spi based devices(normal) > > > * cadence-quadspi.c(drivers/mtd/spi-nor/)* : specific support to SPI-NOR > > > flash with new spi-nor layer. > > > all the API's in this driver purely on spi-nor specific, so couldn't > > > proceed to adapt. > > Are these completely separate IPs or are they just different versions of > > the same IP? > These are same IPs , but different features Enabled/Disabled depends upon > the SoC vendors. > for e.g: Intel LGM SoC uses the same IP, but without DMA and Direct access > controller. > also dedicated support to flash devices. If it's different versions of the same IP then everything should be in one driver with the optional features enabled depending on what's in a given system.
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