Commit graph

112 commits

Author SHA1 Message Date
Simon Goldschmidt
3600b46117 of-platdata: improve documentation
Improve some things in the documentation of OF_PLATDATA that I found
while porting socfgpa_gen5 to it.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-02-09 12:50:22 -07:00
Tien Fong Chee
31a2cf1ca4 misc: fs_loader: Switching private data allocation to DM auto allocation
Switching private data manual allocation to driver model auto allocation
so users no longer need to deallocate themself because this would be
deallocated by driver model when the device is no longer required.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-01-15 15:28:54 -05:00
Simon Glass
3e87ffcffb dm: video: lcd: MIGRATION: Add migration plan for video
Add a migration plan for video which is an important subsystem in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-01-09 07:13:31 -05:00
Simon Glass
1ce689d950 dm: pci: MIGRATION: Add migration plan for PCI
Add a migration plan for PCI which is an important subsystem in U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2019-01-09 07:13:31 -05:00
Jagan Teki
99a17dd53d dm: MIGRATION: Update migration plan for SPI
- v2019.04 for no dm conversion drivers
- v2019.07 for partially converted drivers.

Note: there were many updates on this deadline, so better
not update this again.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-01-02 01:00:31 +05:30
Tom Rini
91ff686562 blk: Rework guard around part_init call
The function part_init() will only be built when we have both
CONFIG_PARTITIONS and CONFIG_HAVE_BLOCK_DEVICE set.  Protect the call to
this function with both of these tests now.

Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Cc: Mingkai Hu <mingkai.hu@nxp.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Marek Behún <marek.behun@nic.cz>
Cc: Vanessa Maegima <vanessa.maegima@nxp.com>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Cc: Adam Ford <aford173@gmail.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-12 12:14:22 -05:00
Tom Rini
9450ab2ba8 Merge branch 'master' of git://git.denx.de/u-boot-spi
- Various MTD fixes from Boris
- Zap various unused / legacy paths.
- pxa3xx NAND update from Miquel

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-05 15:06:24 -05:00
Tom Rini
7cfc1a381e dm: MIGRATION: Update migration plan for BLK
The biggest part of migration to using CONFIG_BLK is that we need to
have the various subsystems migrated first, so reword the plan here to
reference the new deadlines.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-03 19:31:13 -05:00
Tom Rini
ea9d7c17fc dm: MIGRATION: Add migration plan for CONFIG_SATA
As the core of the subsystem has been converted along with some of the
drivers, formalize a deadline for migration.

Cc: Akshay Bhat <akshaybhat@timesys.com>
Cc: Andreas Geisreiter <ageisreiter@dh-electronics.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jason Liu <jason.hui.liu@nxp.com>
Cc: Ken Lin <Ken.Lin@advantech.com.tw>
Cc: Ludwig Zenz <lzenz@dh-electronics.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Max Krummenacher <max.krummenacher@toradex.com>
Cc: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Soeren Moch <smoch@web.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Cc: York Sun <york.sun@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-03 19:31:13 -05:00
Tom Rini
109d8bf3ac dm: MIGRATION: Add migration plan for DM_USB
As much of the USB system has been migrated to DM now, formalize a
deadline for migration.

Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-03 19:31:13 -05:00
Tom Rini
1cb5d5df38 dm: MIGRATION: Add migration plan for DM_MMC
Given that at this point the MMC subsystem itself has been migrated
along with a number of subsystem drivers, formalize a deadline for
migration.

Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-12-03 19:31:13 -05:00
Jagan Teki
fe82ca8f71 spi: Remove used spi_init
spi_init used in some areas in tree, but the respective
drivers will remove in future patches.

So remove the same instances.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:53 +05:30
Bin Meng
1a6bd4717f dm: doc: Update description of pre-relocation support
Add some description about pre-relocation driver binding, including
usage of DM_FLAG_PRE_RELOC flag and caveats.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:28 -08:00
Marek Vasut
92ed986521 pci: Update documentation to make 'compatible' string optional
Reword the documentation to make it clear the compatible string is now
optional, yet still matching on it takes precedence over PCI IDs and
PCI classes.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-10-20 15:23:38 -04:00
Simon Glass
06f94461a9 fdt: Allow indicating a node is for U-Boot proper only
At present it is not possible to specify that a node should be used before
relocation (in U-Boot proper) without it also ending up in SPL and TPL
device trees. Add a new "u-boot,dm-pre-proper" boolean property for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Simon Glass
a15a7aa47b doc: Update docs for device tree in SPL, TPL
Make a few small updates to indicate that device tree can be used in SPL
and TPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Tien Fong Chee
45029758be doc: Add new doc for file system firmware loader driver model
Provide information about

- overview of file system firmware loader driver model
- describe storage device and partition in device tree source
- describe fie system firmware loader API

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-28 20:22:33 -04:00
Tom Rini
15416c86b4 dm: Update README.txt to clarify device tree usage
In the section about Device Trees add a paragraph at the end that
clarifies how we decide of a tree is valid or not.  We say that all
bindings must either be in the specification (link provided) or in our
device-tree-bindings directory.  We say that most of these come from the
Linux Kernel and as such some design decisions are made for us already,
but that in most cases we wish to retain compatibility.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-09-25 21:49:18 -04:00
Bin Meng
4345998ae9 pci: sandbox: Support dynamically binding device driver
At present all emulated sandbox pci devices must be present in the
device tree in order to be used. The real world pci uclass driver
supports pci device driver matching, and we should add such support
on sandbox too.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-08 12:49:31 +01:00
Chris Packham
09b8d67f31 doc: driver-model: Fix typo
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-26 14:18:38 -06:00
Tuomas Tynkkynen
2239690aca i2c: Drop CONFIG_SH_SH7734_I2C
Last user of this driver went away in May 2017 in commit
eb5ba3aefd ("i2c: Drop use of CONFIG_I2C_HARD").

Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Acked-by: Heiko Schocher <hs@denx.de>
2018-05-23 17:30:04 -04:00
Tuomas Tynkkynen
d70c79fa89 i2c: Drop CONFIG_TSI108_I2C
Last user of this driver went away in June 2015 in commit
d928664f41 ("powerpc: 74xx_7xx: remove 74xx_7xx cpu support")

Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Acked-by: Heiko Schocher <hs@denx.de>
2018-05-23 17:30:04 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Jagan Teki
c4e68d3aa8 dm: MIGRATION: Add migration plan for DM_SPI & DM_SPI_FLASH
Due to adding various new functionalities with SPI and SPI-FLASH
subsystems which are rounding in Mailing list for year these long
term supporting spi driver which never seen any update with
driver-model conversion.

So added migration plan for DM_SPI and DM_SPI_FLASH with
deadline v2018.09

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-03-16 10:26:14 -04:00
Simon Glass
0d15463c05 dtoc: Rename the phandle struct
Rather than naming the phandle struct according to the number of cells it
uses (e.g. struct phandle_2_cell) name it according to the number of
arguments it has (e.g. struct phandle_1_arg). This is a more intuitive
naming.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-09-15 05:27:47 -06:00
Simon Glass
d944bf6b5e dm: core: Add livetree documentation
Add some documentation for the live device tree support in U-Boot. This
was missing from the initial series.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Łukasz Majewski <lukma@denx.de>
2017-09-04 02:10:06 -06:00
Simon Glass
302466d07f dm: Add migration plan for CONFIG_BLK
The CONFIG_BLK conversion involves quite invasive changes in the U-Boot
code, with #ifdefs and different code paths. We should try to move over to
this soon so we can drop the old code.

Set a deadline of 9 months for this work, rounded up to the next release.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-09-04 02:10:06 -06:00
Simon Glass
2cce586651 dtoc: Support multiple compatible strings in a node
Sometimes a node will have multiple compatible strings. Drivers may use
one or the other so the best approach seems to be to #define them to be
equivalent.

Update dtoc to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-07-11 10:08:19 -06:00
mario.six@gdsys.cc
2a792753d6 dm: Add callback to modify the device tree
Certain boards come in different variations by way of utilizing daughter
boards, for example. These boards might contain additional chips, which
are added to the main board's busses, e.g. I2C.

The device tree support for such boards would either, quite naturally,
employ the overlay mechanism to add such chips to the tree, or would use
one large default device tree, and delete the devices that are actually
not present.

Regardless of approach, even on the U-Boot level, a modification of the
device tree is a prerequisite to have such modular families of boards
supported properly.

Therefore, we add an option to make the U-Boot device tree (the actual
copy later used by the driver model) writeable, and add a callback
method that allows boards to modify the device tree at an early stage,
at which, hopefully, also the application of device tree overlays will
be possible.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-03-23 15:46:23 +01:00
Heiko Stübner
27326c7ee2 dm: allow limiting pre-reloc markings to spl or tpl
Right now the u-boot,dm-pre-reloc flag will make each marked node
always appear in both spl and tpl. But systems needing an additional
tpl might have special constraints for each, like the spl needing to
be very tiny.

So introduce two additional flags to mark nodes for only spl or tpl
environments and introduce a function dm_fdt_pre_reloc to automate
the necessary checks in code instances checking for pre-relocation
flags.

The behaviour of the original flag stays untouched and still marks
a node for both spl and tpl.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-03-16 16:03:44 -06:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Simon Glass
6ccb410124 dm: Add timeline and guide for porting I2C drivers
Add a README with a brief guide to porting i2c drivers over to use driver
model.

Add a timeline also. All I2C drivers should be converted by the end
of June 2017.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2016-12-05 13:28:12 +01:00
Simon Glass
ebb2c53585 serial: Drop the s3c24x0 serial driver
This is not used by any boards. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Müller <d.mueller@elsoft.ch>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-12-04 13:55:00 -05:00
Simon Glass
8ff89f8db8 serial: Update docs to indicate mcfuart supports DM_SERIAL
This driver was converted so we should remove it from the list.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-12-04 13:54:59 -05:00
Simon Glass
1269625177 dm: Update the of-platdata README for the new features
Revise the content based on the v2 additions. This is kept as a separate
patch to avoid confusing those who have already reviewed the v1 series.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Tom Rini <trini@konsulko.com>
2016-07-14 20:40:24 -06:00
Simon Glass
39782afb1a dm: Add a README for of-platdata
Add documentation on how this works, including the benefits and drawbacks.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-07-14 20:40:24 -06:00
Stephen Warren
daac3bfee5 dm: allow setting driver_data before/during bind
This will allow a driver's bind function to use the driver data. One
example is the Tegra186 GPIO driver, which instantiates child devices
for each of its GPIO ports, yet supports two different HW instances each
with a different set of ports, and identified by the udevice_id .data
field.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-05-26 20:48:31 -06:00
Jagan Teki
e57f9c8eef doc: driver-model: Update dm tests run using test.py
Since all the tests are implemented in pytest infrastructure,
So update the dm tests with the same instead of ./test/dm/test-dm.sh

Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
2016-04-14 11:51:39 -06:00
Michal Simek
508770ae37 dm: Remove ARM dcc from the list
Remove ARM Debug communication channel driver from the list
of not converted drivers to DM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-02-24 18:44:14 -05:00
Simon Glass
92d05e50d9 dm: Update on current serial driver status
Update the README to reflect the current status.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-08 10:10:43 -05:00
Michal Simek
93768393d7 serial: uartlite: Move driver to DM
Enable SPL DM too.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Thomas Chou <thomas@wytron.com.tw>
2016-01-27 15:55:49 +01:00
Bin Meng
fdbae099bf serial: lpuart: Add driver model serial support
This adds driver model support to lpuart serial driver.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Tested-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
2016-01-20 19:10:14 -07:00
Thomas Chou
11b35d557b serial-howto: remove altera_jtag_uart and altera_uart from the list
Since both altera_jtag_uart and altera_uart are converted to driver
model, remove them from the list of drivers remaining to convert.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Chin Liang See <clsee@altera.com>
2015-12-19 09:51:19 +08:00
Kamil Lulko
665624149a stm32: Convert serial driver to DM
Signed-off-by: Kamil Lulko <kamil.lulko@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2015-12-12 15:56:08 -05:00
Simon Glass
1d149eddcc dm: Add timeline and guide for porting serial drivers
Add a README with a brief guide to porting serial drivers over to use
driver model.

Add a timeline also. All serial drivers should be converted by the end
of January 2016.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-11-20 13:59:54 -05:00
Simon Glass
bcbe3d1579 dm: Rename dev_get_parentdata() to dev_get_parent_priv()
The current name is inconsistent with other driver model data access
functions. Rename it and fix up all users.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2015-10-23 09:42:28 -06:00
Nishanth Menon
ddf56bc7e3 drivers: Introduce a simplified remoteproc framework
Many System on Chip(SoC) solutions are complex with multiple processors
on the same die dedicated to either general purpose of specialized
functions. Many examples do exist in today's SoCs from various vendors.
Typical examples are micro controllers such as an ARM M3/M0 doing a
offload of specific function such as event integration or power
management or controlling camera etc.

Traditionally, the responsibility of loading up such a processor with a
firmware and communication has been with a High Level Operating
System(HLOS) such as Linux. However, there exists classes of products
where Linux would need to expect services from such a processor or the
delay of Linux and operating system being able to load up such a
firmware is unacceptable.

To address these needs, we need some minimal capability to load such a
system and ensure it is started prior to an Operating System(Linux or
any other) is started up.

NOTE: This is NOT meant to be a solve-all solution, instead, it tries to
address certain class of SoCs and products that need such a solution.

A very simple model is introduced here as part of the initial support
that supports microcontrollers with internal memory (no MMU, no
execution from external memory, or specific image format needs). This
basic framework can then (hopefully) be extensible to other complex SoC
processor support as need be.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-10-22 14:18:38 -04:00
Bin Meng
f4b5db7c53 dm: pci: Document binding of pci device drivers
Document how pci devices are bound to device drivers.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-08-26 07:54:18 -07:00
Bin Meng
947eb4396d doc: dm: Update pci-info.txt for pci support
Correct two typos and mention how pci bus will be probed.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-08-05 08:42:38 -06:00
Simon Glass
97f3ee34b6 dm: Add platform data advice and admonishment
We should guide people more strongly towards device tree to avoid the
proliferation of platform data structures. Add documentation to the driver
model README, and also the platform data header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-07-21 17:39:30 -06:00