Gitiles
Code Review Sign In
gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 18c56605c6cd45cb3e1ea39e2a9df46d4eade7ae / . / doc / driver-model / migration.rst
blob: 2284e8a6f70b4d3a1f59259fb7703740c0f1cc9a [file] [log] [blame]
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]1.. SPDX-License-Identifier: GPL-2.0+
2
Simon Glass302466d2017-08-05 15:45:53 -0600[diff] [blame]3Migration Schedule
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]4==================
Simon Glass302466d2017-08-05 15:45:53 -0600[diff] [blame]5
6U-Boot has been migrating to a new driver model since its introduction in
72014. This file describes the schedule for deprecation of pre-driver-model
8features.
9
Heinrich Schuchardt282ed242019-09-16 18:41:42 +0200[diff] [blame]10CONFIG_DM
11---------
12
13* Status: In progress
14* Deadline: 2020.01
15
16Starting with the 2010.01 release CONFIG_DM will be enabled for all boards.
17This does not concern CONFIG_DM_SPL and CONFIG_DM_TPL. The conversion date for
18these configuration items still needs to be defined.
19
Tom Rini1cb5d5d2018-11-29 18:21:11 -0500[diff] [blame]20CONFIG_DM_MMC
21-------------
22
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]23* Status: In progress
24* Deadline: 2019.04
Tom Rini1cb5d5d2018-11-29 18:21:11 -0500[diff] [blame]25
26The subsystem itself has been converted and maintainers should submit patches
27switching over to using CONFIG_DM_MMC and other base driver model options in
28time for inclusion in the 2019.04 rerelease.
Simon Glass302466d2017-08-05 15:45:53 -0600[diff] [blame]29
Tom Rini109d8bf2018-11-29 18:21:12 -0500[diff] [blame]30CONFIG_DM_USB
31-------------
32
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]33* Status: In progress
34* Deadline: 2019.07
Tom Rini109d8bf2018-11-29 18:21:12 -0500[diff] [blame]35
36The subsystem itself has been converted along with many of the host controller
37and maintainers should submit patches switching over to using CONFIG_DM_USB and
38other base driver model options in time for inclusion in the 2019.07 rerelease.
39
Tom Riniea9d7c12018-11-29 18:21:13 -0500[diff] [blame]40CONFIG_SATA
41-----------
42
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]43* Status: In progress
44* Deadline: 2019.07
Tom Riniea9d7c12018-11-29 18:21:13 -0500[diff] [blame]45
46The subsystem itself has been converted along with many of the host controller
47and maintainers should submit patches switching over to using CONFIG_AHCI and
48other base driver model options in time for inclusion in the 2019.07 rerelease.
49
Simon Glass302466d2017-08-05 15:45:53 -0600[diff] [blame]50CONFIG_BLK
51----------
52
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]53* Status: In progress
54* Deadline: 2019.07
Simon Glass302466d2017-08-05 15:45:53 -0600[diff] [blame]55
Tom Rini7cfc1a32018-11-29 18:21:14 -0500[diff] [blame]56In concert with maintainers migrating their block device usage to the
57appropriate DM driver, CONFIG_BLK needs to be set as well. The final deadline
58here coincides with the final deadline for migration of the various block
Tom Rini91ff6862018-12-05 08:23:38 -0500[diff] [blame]59subsystems. At this point we will be able to audit and correct the logic in
60Kconfig around using CONFIG_PARTITIONS and CONFIG_HAVE_BLOCK_DEVICE and make
61use of CONFIG_BLK / CONFIG_SPL_BLK as needed.
Jagan Tekic4e68d32018-03-14 18:58:03 +0530[diff] [blame]62
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]63CONFIG_DM_SPI / CONFIG_DM_SPI_FLASH
64-----------------------------------
Jagan Tekic4e68d32018-03-14 18:58:03 +0530[diff] [blame]65
66Board Maintainers should submit the patches for enabling DM_SPI and DM_SPI_FLASH
67to move the migration with in the deadline.
68
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]69Partially converted::
70
Jagan Teki18c56602020-07-09 21:23:58 +0530[diff] [blame^]71 drivers/spi/fsl_espi.c
Jagan Tekic4e68d32018-03-14 18:58:03 +0530[diff] [blame]72 drivers/spi/mxc_spi.c
Jagan Tekid1505ad2019-04-29 01:58:54 +0530[diff] [blame]73 drivers/spi/sh_qspi.c
Jagan Tekic4e68d32018-03-14 18:58:03 +0530[diff] [blame]74
Bin Menge1910d92019-07-18 00:33:50 -0700[diff] [blame]75* Status: In progress
76* Deadline: 2019.07
Simon Glass1ce689d2018-12-28 14:03:07 -0700[diff] [blame]77
Simon Glass1ce689d2018-12-28 14:03:07 -0700[diff] [blame]78CONFIG_DM_PCI
79-------------
80Deadline: 2019.07
81
82The PCI subsystem has supported driver model since mid 2015. Maintainers should
83submit patches switching over to using CONFIG_DM_PCI and other base driver
84model options in time for inclusion in the 2019.07 release.
85
Simon Glass3e87ffc2018-12-28 14:03:08 -0700[diff] [blame]86
87CONFIG_DM_VIDEO
88---------------
89Deadline: 2019.07
90
91The video subsystem has supported driver model since early 2016. Maintainers
92should submit patches switching over to using CONFIG_DM_VIDEO and other base
93driver model options in time for inclusion in the 2019.07 release.
Heinrich Schuchardt2e0f3242019-08-10 00:10:37 +0200[diff] [blame]94
95CONFIG_DM_ETH
96-------------
97Deadline: 2020.07
98
99The network subsystem has supported the driver model since early 2015.
100Maintainers should submit patches switching over to using CONFIG_DM_ETH and
101other base driver model options in time for inclusion in the 2020.07 release.