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diff --git a/doc/develop/driver-model/migration.rst b/doc/develop/driver-model/migration.rst new file mode 100644 index 0000000..2284e8a --- /dev/null +++ b/doc/develop/driver-model/migration.rst @@ -0,0 +1,101 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +Migration Schedule +================== + +U-Boot has been migrating to a new driver model since its introduction in +2014. This file describes the schedule for deprecation of pre-driver-model +features. + +CONFIG_DM +--------- + +* Status: In progress +* Deadline: 2020.01 + +Starting with the 2010.01 release CONFIG_DM will be enabled for all boards. +This does not concern CONFIG_DM_SPL and CONFIG_DM_TPL. The conversion date for +these configuration items still needs to be defined. + +CONFIG_DM_MMC +------------- + +* Status: In progress +* Deadline: 2019.04 + +The subsystem itself has been converted and maintainers should submit patches +switching over to using CONFIG_DM_MMC and other base driver model options in +time for inclusion in the 2019.04 rerelease. + +CONFIG_DM_USB +------------- + +* Status: In progress +* Deadline: 2019.07 + +The subsystem itself has been converted along with many of the host controller +and maintainers should submit patches switching over to using CONFIG_DM_USB and +other base driver model options in time for inclusion in the 2019.07 rerelease. + +CONFIG_SATA +----------- + +* Status: In progress +* Deadline: 2019.07 + +The subsystem itself has been converted along with many of the host controller +and maintainers should submit patches switching over to using CONFIG_AHCI and +other base driver model options in time for inclusion in the 2019.07 rerelease. + +CONFIG_BLK +---------- + +* Status: In progress +* Deadline: 2019.07 + +In concert with maintainers migrating their block device usage to the +appropriate DM driver, CONFIG_BLK needs to be set as well. The final deadline +here coincides with the final deadline for migration of the various block +subsystems. At this point we will be able to audit and correct the logic in +Kconfig around using CONFIG_PARTITIONS and CONFIG_HAVE_BLOCK_DEVICE and make +use of CONFIG_BLK / CONFIG_SPL_BLK as needed. + +CONFIG_DM_SPI / CONFIG_DM_SPI_FLASH +----------------------------------- + +Board Maintainers should submit the patches for enabling DM_SPI and DM_SPI_FLASH +to move the migration with in the deadline. + +Partially converted:: + + drivers/spi/fsl_espi.c + drivers/spi/mxc_spi.c + drivers/spi/sh_qspi.c + +* Status: In progress +* Deadline: 2019.07 + +CONFIG_DM_PCI +------------- +Deadline: 2019.07 + +The PCI subsystem has supported driver model since mid 2015. Maintainers should +submit patches switching over to using CONFIG_DM_PCI and other base driver +model options in time for inclusion in the 2019.07 release. + + +CONFIG_DM_VIDEO +--------------- +Deadline: 2019.07 + +The video subsystem has supported driver model since early 2016. Maintainers +should submit patches switching over to using CONFIG_DM_VIDEO and other base +driver model options in time for inclusion in the 2019.07 release. + +CONFIG_DM_ETH +------------- +Deadline: 2020.07 + +The network subsystem has supported the driver model since early 2015. +Maintainers should submit patches switching over to using CONFIG_DM_ETH and +other base driver model options in time for inclusion in the 2020.07 release. |