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At present PCI address transaction is not supported so drivers must
manually read the correct BAR after reading the device tree info. The
ns16550 has a suitable implementation, so move this code into the core
DM support.
Note that there is no live-tree equivalent at present.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
[bmeng: correct the unclear comments in test.dts]
Signed-off-by: Bin Meng <[email protected]>
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Sandbox pci works using emulation drivers which are currently children of
the pci device:
pci-controller {
pci@1f,0 {
compatible = "pci-generic";
reg = <0xf800 0 0 0 0>;
emul@1f,0 {
compatible = "sandbox,swap-case";
};
};
};
In this case the emulation device is attached to pci device on address
f800 (device 1f, function 0) and provides the swap-case functionality.
However this is not ideal, since every device on a PCI bus has a child
device. This is only really the case for sandbox, but we want to avoid
special-case code for sandbox.
Worse, child devices cannot be probed before their parents. This forces
us to use 'find' rather than 'get' to obtain the emulator device. In fact
the emulator devices are never probed. There is code in
sandbox_pci_emul_post_probe() which tries to track when emulators are
active, but at present this does not work.
A better approach seems to be to add a separate node elsewhere in the
device tree, an 'emulation parent'. This could be given a bogus address
(such as -1) to hide the emulators away from the 'pci' command, but it
seems better to keep it at the root node to avoid such hacks.
Then we can use a phandle to point from the device to the correct
emulator, and only on sandbox. The code to find an emulator does not
interfere with normal pci operation.
Add a new UCLASS_PCI_EMUL_PARENT uclass which allows finding an emulator
given a bus, and finding a bus given an emulator. Update the existing
device trees and the code for finding an emulator.
This brings PCI emulators more into line with I2C.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
[bmeng: fix 3 typos in the commit message;
encode bus number in the labels of swap_case_emul nodes;
mention commit 4345998ae9df in sandbox_pci_get_emul()]
Signed-off-by: Bin Meng <[email protected]>
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We have a 'safe' version of this function but sometimes it is not needed.
Add a normal version too and update a few places that can use it.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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This function returns -ENODEV when there is no device. This is
inconsistent with other functions, such as uclass_find_next_device(),
which returns 0.
Update it and tidy up the incorrect '-1' values in the comments.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Tested-by: Bin Meng <[email protected]>
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This patch adds functions dev_read_u64_default & dev_read_u64
to read unsigned 64-bit values from devicetree.
Signed-off-by: T Karthik Reddy <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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The "serial_stm32.h" is only used by drivers/serial/serial_stm32.c
and it is the file ./drivers/serial/serial_stm32.h
Signed-off-by: Patrick Delaunay <[email protected]>
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Current dev_read_*() API lacks support to get address and size
of a "reg" property by name or index. Add support for the same.
Livetree support has been added but not tested on real hardware.
The existing unit tests testing reading address from device-tree
have been updated to test address as well as size.
Reviewed-by: Lokesh Vutla <[email protected]>
Signed-off-by: Sekhar Nori <[email protected]>
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The uclass_next_device() routine continues a previously started device
iteration. Change the description that is copied from
uclass_first_device().
Signed-off-by: Baruch Siach <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The comments of dev_read_name() wrongly describe "node" as its
parameter.
Signed-off-by: Bin Meng <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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https://gitlab.denx.de/u-boot/custodians/u-boot-stm
- add rtc driver for stm32mp1
- add remoteproc driver for stm32mp1
- use kernel qspi compatible string for stm32
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Add the following functions to translate DMA address to CPU address:
- dev_translate_dma_address()
- ofnode_translate_dma_address()
- of_translate_dma_address()
- fdt_translate_dma_address()
These functions work the same way as xxx_translate_address(), with the
difference that the translation relies on the "dma-ranges" property
instead of the "ranges" property.
Add related test. Test report:
=> ut dm fdt_translation
Test: dm_test_fdt_translation: test-fdt.c
Test: dm_test_fdt_translation: test-fdt.c (flat tree)
Failures: 0
Signed-off-by: Fabien Dessenne <[email protected]>
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Adds a class for MDIO MUXes, which control access to a series of
downstream child MDIOs.
MDIO MUX drivers are required to implement a select function used to switch
between child buses.
MUX children are registered as MDIO buses and they can be used just like
regular MDIOs.
Signed-off-by: Alex Marginean <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
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Adds UCLASS_MDIO DM class supporting MDIO buses that are probed as
stand-alone devices. Useful in particular for systems that support
DM_ETH and have a stand-alone MDIO hardware block shared by multiple
Ethernet interfaces.
Signed-off-by: Alex Marginean <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
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https://gitlab.denx.de/u-boot/custodians/u-boot-dm
- Sandbox improvements including .dts refactor
- Minor tracing and PCI improvements
- Various other minor fixes
- Conversion of patman, dtoc and binman to support Python 3
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Introduce new UCLASS_PCI_EP class for handling PCI endpoint
devices, allowing to set various attributes of the PCI endpoint
device, such as:
* configuration space header
* BAR definitions
* outband memory mapping
* start/stop PCI link
Signed-off-by: Ramon Fried <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add documentation for the pre-reloc property in SPL and TPL device-tree:
- u-boot,dm-pre-proper
- u-boot,dm-pre-reloc
- u-boot,dm-spl
- u-boot,dm-tpl
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This uclass is intended for devices that do not need any features from the
uclass, including binding children.
This will typically be used by devices that are used to bind child devices
but do not use dm_scan_fdt_dev() to do it. That is for example the case of
several USB wrappers that have 2 child devices (1 for device and 1 for
host) but bind only one at a any given time.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Add drive-strength-microamp property support to allow drive strength in uA
Signed-off-by: Guillaume La Roque <[email protected]>
Tested-by: Neil Armstrong <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
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Converting to driver model and removes non-dm code.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Angelo Dureghello <[email protected]>
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It was returning an int, which doesn't work if the u32 it is reading,
or the default value, will overflow a signed int.
While it could be made to work, when using a C standard/compiler where
casting negative signed values to unsigned has a defined behavior,
combined with careful casting, it seems obvious one is meant to use
ofnode_read_s32_default() with signed values.
Cc: Simon Glass <[email protected]>
Signed-off-by: Trent Piepho <[email protected]>
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Add ofnode_get_addr_size_index function to fetch the address
and size of the reg space based on index.
Signed-off-by: Keerthy <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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- Various pinctrl / gpio fixes for R-Car
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The cache UCLASS will be used for configure settings that can be found
in a CPU's L2 cache controller.
Add a uclass and a test for cache.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Dinh Nguyen <[email protected]>
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Add callback to configure, and de-configure, pin as a GPIO on the
pin controller side. This matches similar functionality in Linux
and aims to replace the ad-hoc implementations present in U-Boot.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Alex Kiernan <[email protected]>
Cc: Christoph Muellner <[email protected]>
Cc: Eugeniu Rosca <[email protected]>
Cc: Patrice Chotard <[email protected]>
Cc: Patrick DELAUNAY <[email protected]>
Cc: Philipp Tomsich <[email protected]>
Cc: Simon Glass <[email protected]>
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Testing has shown that the current DM implementation of a platform /
board specific translation offset, as its needed for the SPL on MVEBU
platforms is buggy. The translation offset is confingured too late,
after the driver bind functions are run. This may result in incorrect
address translations. With the current implementation its not possible
to configure the offset earlier, as the DM code has not run at all.
This patch now removed the set_/get_translation_offset() calls and
moves the translation offset into the GD variable translation_offset.
This variable will get used when CONFIG_TRANSLATION_OFFSET is enabled.
This option is enabled only for MVEBU on ARM32 platforms, where its
currenty needed and configured in the SPL.
Signed-off-by: Stefan Roese <[email protected]>
Cc: Pierre Bourdon <[email protected]>
Cc: Baruch Siach <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Tom Rini <[email protected]>
Tested-by: Pierre Bourdon <[email protected]>
Tested-by: Baruch Siach <[email protected]>
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The function dm_ofnode_pre_reloc should be used instead
of the function dm_fdt_pre_reloc and avoid duplicated code.
Signed-off-by: Patrick Delaunay <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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This reverts commit 5ff776889212c080e3d1a33634ac904405ed6845.
As noted in the comment, the function pinctrl_decode_pin_config_dm()
only served as a temporary solution.
Since the function has no users anymore, we can remove it again.
Signed-off-by: Christoph Muellner <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Signed-off-by: Chris Packham <[email protected]>
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It is wrapper for calling of_alias_get_highest_id() when live tree is
enabled and fdtdec_get_alias_highest_id() if not.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The same functionality was added to Linux for i2c bus registration with this
commit message:
"
of: base: add function to get highest id of an alias stem
I2C supports adding adapters using either a dynamic or fixed id. The
latter is provided by aliases in the DT case. To prevent id collisions
of those two types, install this function which gives us the highest
fixed id, so we can then let the dynamically created ones come after
this highest number.
Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
"
Add it also to U-Boot for DM I2C support.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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pinctrl_decode_pin_config_dm() is basically a feature-equivalent
implementation of pinctrl_decode_pin_config(), which operates
on struct udevice devices and uses the dev_read_*() API.
Signed-off-by: Christoph Muellner <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
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The current dev_read...() functions use s32 and u32 which are convenient
for device tree but not so useful for normal code, which often wants to
use normal integers for values.
Add a helper which supports returning an unsigned int. Also add signed
versions of the unsigned readers.
Signed-off-by: Simon Glass <[email protected]>
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The sound driver pulls together the audio codec and i2s drivers in order
to actually make sounds. It supports setup() and play() methods. The
sound_find_codec_i2s() function allows locating the linked codec and i2s
devices. They can be referred to from uclass-private data.
Add a uclass and a test for sound.
Signed-off-by: Simon Glass <[email protected]>
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The i2s bus is commonly used with audio codecs. It provides a way to
stream digital data sychronously in both directions. U-Boot only supports
audio output, so this uclass is very simple, with a single tx_data()
method.
Add a uclass and a test for i2s.
Signed-off-by: Simon Glass <[email protected]>
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An audio codec provides a way to convert digital data to sound and vice
versa. Add a simple uclass which just supports setting the parameters for
the codec.
Signed-off-by: Simon Glass <[email protected]>
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Improvements:
- init DRAM for RK322x in SPL
- add FAN53555 PMIC/regulator driver
- update MicroCrystal RV3029 driver to Kconfig and sync from Linux
- add bootcount uclass and first DM-driver for bootcount
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- DM_I2C_COMPAT removal for all ti platforms from Jean-Jacques Hiblot
- Fix in i2c command help output from Chirstoph Muellner.
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- DWC3 and UDC cleanup
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The original bootcount methods do not provide an interface to DM and
rely on a static configuration for I2C devices (e.g. bus, chip-addr,
etc. are configured through defines statically). On a modern system
that exposes multiple devices in a DTS-configurable way, this is less
than optimal and a interface to DM-based devices will be desirable.
This adds a simple driver that is DM-aware and configurable via DTS.
If ambiguous (i.e. multiple bootcount-devices are present) the
/chosen/u-boot,bootcount-device property can be used to select one
bootcount device.
Initially, this provides support for the following DM devices:
* RTC devices
Signed-off-by: Philipp Tomsich <[email protected]>
Tested-by: Klaus Goger <[email protected]>
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If OF_CONTROL is not enabled and DM_SEQ_ALIAS is enabled, we must
assign an alias (requested sequence number) to devices that belongs to a
class with the DM_UC_FLAG_SEQ_ALIAS flag. Otherwise
uclass_find_device_by_seq() cannot be used to get/probe a device. In
particular i2c_get_chip_for_busnum() cannot be used.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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UCLASS_USB_DEV_GENERIC was meant for USB devices connected to host
controllers, not gadget devices.
Adding a new UCLASS for gadget devices alone.
Also move the generic DM code for USB gadgets in a separate file for
clarity.
Signed-off-by: Jean-Jacques Hiblot <[email protected]>
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This is uclass for Hardware Spinlocks.
It implements two mandatory operations: lock and unlock
and one optional relax operation.
Signed-off-by: Benjamin Gaignard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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Minor sandbox enhancements / fixes
tpm improvements to clear up v1/v2 support
buildman toolchain fixes
New serial options to set/get config
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- Various MTD fixes from Boris
- Zap various unused / legacy paths.
- pxa3xx NAND update from Miquel
Signed-off-by: Tom Rini <[email protected]>
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This functions allow us to get and remap I/O addresses by name, which is useful when there are multiple reg addresses indexed by reg-names property.
This is needed in bmips dma/eth patch series, but can also be used on many
other drivers.
Signed-off-by: Álvaro Fernández Rojas <[email protected]>
Reviewed-by: Daniel Schwierzeck <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The comment in uclass-id.h states that
"U-Boot uclasses start here - in alphabetical order"
but the subsequent list is not sorted alphabetically.
This reestablishes order.
Signed-off-by: Philipp Tomsich <[email protected]>
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Signed-off-by: Baruch Siach <[email protected]>
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Sandbox i2c works using emulation drivers which are currently children of
the i2c device:
rtc_0: rtc@43 {
reg = <0x43>;
compatible = "sandbox-rtc";
emul {
compatible = "sandbox,i2c-rtc";
};
};
In this case the emulation device is attached to i2c bus on address 0x43
and provides the Real-Time-Clock (RTC) functionality.
However this is not ideal, since every device on an I2C bus has a child
device. This is only really the case for sandbox, but we want to avoid
special-case code for sandbox.
A better approach seems to be to add a separate node on the bus, an
'emulation parent'. This can be given a bogus address (such as 0xff) and
hides all the emulators away. Then we can use a phandle to point from the
device to the correct emualtor, and only on sandbox. The code to find an
emulator does not interfere with normal i2c operation.
Add a new UCLASS_I2C_EMUL_PARENT uclass which allows finding an emulator
given a bus, and finding a bus given an emulator. This will be used in a
follow-on patch.
Signed-off-by: Simon Glass <[email protected]>
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This is currently at the top in the space for internal use. But this
uclass is used outside driver model and test code. Move it into the
correct alpha order.
Signed-off-by: Simon Glass <[email protected]>
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Add two functions which can find a child device by uclass or by name.
The first is useful with Multi-Function-Devices (MFDs) to find one of a
particular type. The second is useful when only the name is known.
Signed-off-by: Simon Glass <[email protected]>
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