Re: [U-Boot] sf: About sandbox flash driver
Hi Jagan, On 8 January 2016 at 03:47, Jagan Tekiwrote: > Hi Simon, > > On 8 January 2016 at 01:19, Simon Glass wrote: >> Hi Jagan, >> >> On 30 December 2015 at 10:03, Jagan Teki wrote: >>> Hi Simon, >>> >>> Few question wrt sandbox flash driver - drivers/mtd/spi/sandbox.c >>> >>> 1) Does this driver used for creating flash emulation environment? or >>> something else? >> >> It is an emulation driver, meant to emulate a SPI flash device. See >> sandbox_sf_emul_ops - the sandbox_sf_xfer() receives a SPI message >> from U-Boot and produces a reply. >> >>> 2) Can't it use spi_flash.c core for all spi flash operations, how >>> different is this? >> >> That is for talking to SPI flash devices I think, rather than emulating one. > > Yes, that I understood. is it possible to modify this to use spi_flash > core? Because we need to maintain the spi_flash_params separately for > this, see my last series for reference[1] I have moved flash_prams > inside spi_flash core and old ones to sandbox I'm sure it could be changed. At present it uses spi_flash_params_table but it could be changed to use a different table. > > [1] http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/246568 > > thanks! > -- > Jagan. Regards, Simon ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] sf: About sandbox flash driver
Hi Simon, On 8 January 2016 at 01:19, Simon Glasswrote: > Hi Jagan, > > On 30 December 2015 at 10:03, Jagan Teki wrote: >> Hi Simon, >> >> Few question wrt sandbox flash driver - drivers/mtd/spi/sandbox.c >> >> 1) Does this driver used for creating flash emulation environment? or >> something else? > > It is an emulation driver, meant to emulate a SPI flash device. See > sandbox_sf_emul_ops - the sandbox_sf_xfer() receives a SPI message > from U-Boot and produces a reply. > >> 2) Can't it use spi_flash.c core for all spi flash operations, how >> different is this? > > That is for talking to SPI flash devices I think, rather than emulating one. Yes, that I understood. is it possible to modify this to use spi_flash core? Because we need to maintain the spi_flash_params separately for this, see my last series for reference[1] I have moved flash_prams inside spi_flash core and old ones to sandbox [1] http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/246568 thanks! -- Jagan. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] sf: About sandbox flash driver
Hi Simon, Few question wrt sandbox flash driver - drivers/mtd/spi/sandbox.c 1) Does this driver used for creating flash emulation environment? or something else? 2) Can't it use spi_flash.c core for all spi flash operations, how different is this? Please let me know your inputs. thanks! -- Jagan. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot