Hi York, On 15 February 2016 at 02:16, Jagan Teki <jt...@openedev.com> wrote: > Compared to previous patch series this series adds spi-nor > core with spi-nor controller drivers are of "mtd uclass" > > This is whole series for all spi-nor related changes, and while > series tested on spansion spi-nor chip. > > Know issue: > - arch/x86/lib/mrccache.c uses dm_spi_flash_ops, this need to fix. > > Why this framework: > > Some of the SPI device drivers at drivers/spi not a real > spi controllers, Unlike normal/generic SPI controllers they > operates only with SPI-NOR flash devices. these were technically > termed as SPI-NOR controllers, Ex: drivers/spi/fsl_qspi.c > > The problem with these were resides at drivers/spi is entire > SPI layer becomes SPI-NOR flash oriented which is absolutely > a wrong indication where SPI layer getting effected more with > flash operations - So this SPI-NOR core will resolve this issue > by separating all SPI-NOR flash operations from spi layer and > creats a generic layer called SPI-NOR core which can be used to > interact SPI-NOR to SPI driver interface layer and the SPI-NOR > controller driver. The idea is taken from Linux spi-nor framework. > > Before SPI-NOR: > > ----------------------- > cmd/sf.c > ----------------------- > spi_flash.c > ----------------------- > sf_probe.c > ----------------------- > spi-uclass > ----------------------- > spi drivers > ----------------------- > SPI NOR chip > ----------------------- > > After SPI-NOR: > > ------------------------------ > cmd/sf.c > ------------------------------ > spi-nor.c > ------------------------------- > m25p80.c spi nor drivers > ------------------------------- > spi-uclass SPI NOR chip > ------------------------------- > spi drivers > ------------------------------- > SPI NOR chip > ------------------------------- > > SPI-NOR with MTD: > > ------------------------------ > cmd/sf.c > ------------------------------ > MTD core > ------------------------------ > spi-nor.c > ------------------------------- > m25p80.c spi nor drivers > ------------------------------- > spi-uclass SPI NOR chip > ------------------------------- > spi drivers > ------------------------------- > SPI NOR chip > ------------------------------- > > drivers/mtd/spi-nor/spi-nor.c: spi-nor core > drivers/mtd/spi-nor/m25p80.c: mtd uclass driver > which is an interface layer b/w spi-nor core drivers/spi > drivers/mtd/spi-nor/fsl_qspi.c: spi-nor controller driver(mtd uclass) > > Changes for v6: > - Fixed git bisectable issues, with buildman. > - Fixed spi-nor compilation issues > - newly designed changes. > > Changes for v5: > - newly designed changes > > Testing: > $ git clone git://git.denx.de/u-boot-spi.git > $ cd u-boot-spi > $ git checkout -b spi-nor origin/spi-nor > > Jagan Teki (76): > mtd: Add m25p80 driver > mtd: Add Kconfig entry for MTD_M25P80 > mtd: Add SPI-NOR core support > doc: device-tree-bindings: jedec,spi-nor > mtd: spi-nor: Add Kconfig entry for MTD_SPI_NOR > mtd: spi-nor: Add kconfig for MTD_SPI_NOR_USE_4K_SECTORS > mtd: spi-nor: Add MTD support > mtd: spi-nor: Add spi_nor support in m25p80 > mtd: spi-nor: Add dm spi-nor probing > mtd: spi-nor: Add spi_flash_probe for mtd-dm-spi-nor > mtd: spi-nor: Add spi_flash_free for mtd-dm-spi-nor > mtd: spi-nor: m25p80: Add spi_nor support for non-dm > sf: Rename erase_size to erasesize > sf: Use erasesize instead of sector_size > sf: Use uint64_t for flash->size > spi_flash: Use mtd_info operation for SPI-NOR > spi_flash: Use spi_flash_t instead of struct spi_flash > mtd: spi-nor: Move spi_read_then_write to spi layer > spi: Rename spi_read_then_write to spi_write_then_read > mtd: spi-nor: Rename SPI_FLASH_BAR to SPI_NOR_BAR > mtd: spi-nor: Add Kconfig entry for SPI_NOR_BAR > mtd: spi-nor: Copy spl files from drivers/mtd/spi > mtd: spi-nor: spl: Follow ascending order of include headers > mtd: spi-nor: fsl_espi_spl: Use mtd_info > mtd: spi-nor: spi_spl_load: Use mtd_info > mtd: spi-nor: Add flash vendor Kconfig entries > arm: zynq: Kconfig: Select MTD uclass > arm: zynq: Kconfig: Drop DM_SPI_FLASH > defconfigs: zynq_microzed: Drop CONFIG_SPI_FLASH > defconfig: zynq_microzed: Enable CONFIG_MTD_M25P80 > defconfig: zynq_microzed: Enable CONFIG_MTD_SPI_NOR > spl: Add CONFIG_SPL_SPI_NOR_SUPPORT > configs: zynq: Use CONFIG_SPL_SPI_NOR_SUPPORT > configs: zynq: Use CONFIG_SPL_MTD_SUPPORT > mtd: spi-nor: Copy sf_dataflash > mtd: dataflash: Remove unneeded spi data > mtd: dataflash: Move flash id detection into jedec_probe > mtd: dataflash: Fix add_dataflash return logic > mtd: dataflash: Add UCLASS_MTD support > mtd: dataflash: Use spi_write_then_read > mtd: dataflash: Drop sf_internal.h > mtd: dataflash: Minor cleanups > mtd: Rename sf_dataflash.c to mtd_dataflash.c > mtd: spi-nor: Add Kconfig entry for mtd_dataflash > mtd: dataflash: Add MTD_DATAFLASH_WRITE_VERIFY > mtd: spi-nor: Add kconfig MTD_DATAFLASH_WRITE_VERIFY > configs: ls1021aqds: Drop DM_SPI_FLASH and DATAFLASH > defconfig: ls1021aqds_qspi: Enable SPI-NOR > defconfig: ls1021aqds_qspi: Enable CONFIG_MTD_DATAFLASH
Can you pls- test the dataflash changes? use u-boot-spi/spi-nor thanks! -- Jagan. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
