dm: pci: Add a function to find the regions for a PCI bus

This function looks up the controller and returns a pointer to each region
type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: St

dm: pci: Add a function to find the regions for a PCI bus

This function looks up the controller and returns a pointer to each region
type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

show more ...

dm: pci: Add a function to get the controller for a bus

A PCI bus may be a bridge device where the controller is the bridge's
parent. Add a function to return the controller device, given a PCI devi

dm: pci: Add a function to get the controller for a bus

A PCI bus may be a bridge device where the controller is the bridge's
parent. Add a function to return the controller device, given a PCI device.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

show more ...

dm: pci: Add functions to emulate 8- and 16-bit access

Provide a few functions to support using 32-bit access to emulate 8- and
16-bit access.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed

dm: pci: Add functions to emulate 8- and 16-bit access

Provide a few functions to support using 32-bit access to emulate 8- and
16-bit access.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Merge git://git.denx.de/u-boot-dm

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 <

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>

show more ...

Merge git://git.denx.de/u-boot-x86

dm: pci: Add a comment to help find pci_hose_read_config_byte, etc.

These functions are defined by macros so do not show up with grep. Add
a comment to help.

Signed-off-by: Simon Glass <sjg@chromiu

dm: pci: Add a comment to help find pci_hose_read_config_byte, etc.

These functions are defined by macros so do not show up with grep. Add
a comment to help.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

Merge git://git.denx.de/u-boot-x86

dm: pci: Add a way to iterate through all PCI devices

These functions allow iteration through all PCI devices including bridges.
The children of each PCI bus are returned in turn. This can be useful

dm: pci: Add a way to iterate through all PCI devices

These functions allow iteration through all PCI devices including bridges.
The children of each PCI bus are returned in turn. This can be useful for
configuring, checking or enumerating all the devices.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

dm: pci: Provide friendly config access functions

At present there are no PCI functions which allow access to PCI
configuration using a struct udevice. This is a sad situation for driver
model as it

dm: pci: Provide friendly config access functions

At present there are no PCI functions which allow access to PCI
configuration using a struct udevice. This is a sad situation for driver
model as it makes use of PCI harder. Add these functions.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

show more ...

Merge git://git.denx.de/u-boot-x86

pci: Add a constant for an invalid interrupt

Rather than using 0xff in the code, add a constant.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq

drivers/pci: Add function to find an extended capability

PCIe extends device's configuration space to 4k and provides
extended capability. The patch adds function to find them.
The code is ported fr

drivers/pci: Add function to find an extended capability

PCIe extends device's configuration space to 4k and provides
extended capability. The patch adds function to find them.
The code is ported from Linux PCIe driver.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>

show more ...

dm: pci: Add a function to get the BDF for a device

It is useful to be able to find the full PCI address (bus, device and
function) for a PCI device. Add a function to provide this.

Adjust the exis

dm: pci: Add a function to get the BDF for a device

It is useful to be able to find the full PCI address (bus, device and
function) for a PCI device. Add a function to provide this.

Adjust the existing code to use this.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

dm: pci: Add support for PCI driver matching

At present all PCI devices must be present in the device tree in order to
be used. Many or most PCI devices don't require any configuration other than
th

dm: pci: Add support for PCI driver matching

At present all PCI devices must be present in the device tree in order to
be used. Many or most PCI devices don't require any configuration other than
that which is done automatically by U-Boot. It is inefficent to add a node
with nothing but a compatible string in order to get a device working.

Add a mechanism whereby PCI drivers can be declared along with the device
parameters they support (vendor/device/class). When no suitable driver is
found in the device tree the list of such devices is consulted to determine
the correct driver. If this also fails, then a generic driver is used as
before.

The mechanism used is very similar to that provided by Linux and the header
file defintions are copied from Linux 4.1.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>

show more ...

Merge branch 'master' of git://git.denx.de/u-boot

Merge git://git.denx.de/u-boot-x86

pci: Configure expansion ROM during auto config process

Currently PCI expansion ROM address is assigned by a call to
pciauto_setup_rom() outside of the pci auto config process.
This does not work wh

pci: Configure expansion ROM during auto config process

Currently PCI expansion ROM address is assigned by a call to
pciauto_setup_rom() outside of the pci auto config process.
This does not work when expansion ROM is on a device behind
PCI bridge where bridge's memory limit register was already
programmed to a value that does not cover the newly assigned
expansion ROM address. To fix this, we should configure the
ROM address during the auto config process.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

show more ...

dm: pci: Use the correct hose when configuring devices

Only the PCI controller has access to the PCI region information. Make sure
to use the controller (rather than any attached bridges) when confi

dm: pci: Use the correct hose when configuring devices

Only the PCI controller has access to the PCI region information. Make sure
to use the controller (rather than any attached bridges) when configuring
devices.

This corrects a failure to scan and configure devices when driver model is
enabled for PCI.

Also add a comment to explain the problem.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

Merge branch 'u-boot/master' into 'u-boot-arm/master'

dm: sandbox: pci: Add a PCI emulation uclass

Since sandbox does not have real devices (unless it borrows those from the
host) it must use emulations. Provide a uclass which permits PCI operations
to

dm: sandbox: pci: Add a PCI emulation uclass

Since sandbox does not have real devices (unless it borrows those from the
host) it must use emulations. Provide a uclass which permits PCI operations
to be passed through to an emulation device.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

dm: pci: Add a uclass for PCI

Add a uclass for PCI controllers and a generic one for PCI devices. Adjust
the 'pci' command and the existing PCI support to work with this new uclass.
Keep most of the

dm: pci: Add a uclass for PCI

Add a uclass for PCI controllers and a generic one for PCI devices. Adjust
the 'pci' command and the existing PCI support to work with this new uclass.
Keep most of the compatibility code in a separate file so that it can be
removed one day.

TODO: Add more header file comments to the new parts of pci.h

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...

dm: pci: Move common PCI functions into their own file

Driver model will share many functions with the existing PCI implementation.
Move these into their own file to avoid duplication and confusion.

dm: pci: Move common PCI functions into their own file

Driver model will share many functions with the existing PCI implementation.
Move these into their own file to avoid duplication and confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>

show more ...