u-boot.git/drivers/core/device.c, branch v2022.01

iommu: Add IOMMU uclass

2021-10-31T12:46:44+00:00

This uclass is intended to manage IOMMUs on systems where the
IOMMUs are not in bypass mode by default.  In that case U-Boot
cannot ignore the IOMMUs if it wants to use devices that need
to do DMA and sit behind such an IOMMU.

This initial IOMMU uclass implementation does not implement and
device ops and is intended for IOMMUs that have a bypass mode
that does not require address translation.  Support for IOMMUs
that do require address translation is planned and device ops
will be defined when support for such IOMMUs will be added.

Signed-off-by: Mark Kettenis 
Reviewed-by: Simon Glass

Merge tag 'u-boot-stm32-20211012' of https://source.denx.de/u-boot/custodians/u-boot-stm

2021-10-12T16:01:00+00:00

- Disable ATAGS for STM32 MCU and MPU boards
- Disable bi_boot_params for STM32 MCU and MPU boards
- Update stm32-usbphyc node management
- Convert CONFIG_STM32_FLASH to Kconfig for STM32 MCU boards
- Convert some USB config flags to Kconfig for various boards
- Convert CONFIG_BOOTCOMMAND flag to Kconfig for STM32 F429 board
- Remove specific CONFIG_STV0991 flags
- Remove unused CONFIG_USER_LOWLEVEL_INIT flag
- Add ofdata_to_platdata() callback for stm32_spi driver
- Update for stm32f7_i2c driver
- Remove gpio_hog_probe_all() from STM32 MP1 board
- Fix bind command

Signed-off-by: Tom Rini

cmd: bind: Fix driver binding on a device

2021-10-12T12:19:52+00:00

Fix a regression brings by commit 84f8e36f03fa ("cmd: bind: allow to
bind driver with driver data")

As example, the following bind command doesn't work:

   bind /soc/usb-otg@49000000 usb_ether

As usb_ether driver has no compatible string, it can't be find by
lists_bind_fdt(). In bind_by_node_path(), which called lists_bind_fdt(),
the driver entry is known, pass it to lists_bind_fdt() to force the driver
entry selection.

For this, add a new parameter struct *driver to lists_bind_fdt().
Fix also all lists_bind_fdt() callers.

Fixes: 84f8e36f03fa ("cmd: bind: allow to bind driver with driver data")
Signed-off-by: Patrice Chotard 
Reported-by: Herbert Poetzl 
Cc: Marek Vasut 
Cc: Herbert Poetzl 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Simon Glass

treewide: Simply conditions with the new OF_REAL

2021-09-25T15:46:15+00:00

Use this new Kconfig to simplify the compilation conditions where
appropriate.

Signed-off-by: Simon Glass

dm: core: Add logging for DM_SEQ_ALIAS

2021-07-21T16:27:34+00:00

It is sometimes helpful to see which sequence is assigned to a device.
Add debugging info for that.

Signed-off-by: Simon Glass

clk: Allow force setting clock defaults before relocation

2021-06-17T01:40:57+00:00

Since 291da96b8e ("clk: Allow clock defaults to be set during re-reloc
state for SPL only") it has been impossible to set clock defaults before
relocation. This is annoying on boards without SPL, since there is no way
to set clock defaults before U-Boot proper. In particular, the aisram rate
must be changed before relocation on the K210, since U-Boot will hang if we
try and change the rate while we are using aisram.

To get around this, extend the stage parameter to allow force setting
defaults, even if they would be otherwise postponed for later. A device
tree property was decided against because of the concerns in the original
commit thread about the overhead of repeatedly parsing the device tree.

Signed-off-by: Sean Anderson 
Reviewed-by: Simon Glass

dm: core: Use separate priv/plat data region

2021-03-26T04:03:09+00:00

Make use of the new priv/plat data region if enabled. This is implemented
as a simple offset from the position set up by dtoc to the new position.

So long as all access goes through dm_priv_to_rw() this is safe.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass

dm: core: Move flags to device-runtime info

2021-03-26T04:03:09+00:00

When of-platdata-inst is active, use the flags in the new udevice_rt
table, dropping them from the main struct udevice. This ensures that the
latter is not updated at runtime.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass

dm: Rename device_get_by_driver_info_idx()

2021-03-26T04:03:08+00:00

This function finds a device by its driver_info index. With
of-platdata-inst we do not use driver_info, but instead instantiate
udevice records at build-time.

However the semantics of using the function are the same in each case:
the caller provides an index and gets back a device.

So rename the function to device_get_by_ofplat_idx(), so that it can be
used for both situations. The caller does not really need to worry about
the details.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass

dm: core: Drop device_get_by_driver_info()

2021-03-26T04:03:08+00:00

This function is now only used in a test. Drop it. Also drop
DM_DRVINFO_GET() which was the only purpose for having the function.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass