u-boot.git/drivers/pci, branch v2020.04

pci-host-ecam-generic: access config space independent of system-wide bus id

2020-03-30T02:41:56+00:00

The pci-host-ecam-generic code assumes that the ECAM is the first PCI
bus in the system to be probed. Therefore, the system-wide bus number
allocated by U-Boot in sequence for it is going to be zero, which
corresponds to the memory-mapped config spaces found within it.

Reuse the logic from other PCI bus drivers, and assume that U-Boot will
allocate bus numbers in sequence for all buses within the current ECAM.
So the base number of the bus needs to be subtracted when indexing the
correct config space.

Fixes: 3675cb044e68 ("PCI: Add driver for a 'pci-host-ecam-generic' host controller")
Signed-off-by: Vladimir Oltean 
Reviewed-by: Alex Marginean 
Signed-off-by: Priyanka Jain

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass

dm: core: Require users of devres to include the header

2020-02-06T02:33:46+00:00

At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass 
Reviewed-by: Anatolij Gustschin

dm: pci: Update a few more interfaces for const udevice *

2020-02-06T02:33:45+00:00

Tidy up a few places where const * should be used.

Signed-off-by: Simon Glass

dm: pci: Update the PCI read_config() method to const dev *

2020-02-06T02:33:45+00:00

At present this method uses a non-const udevice pointer, but the call
should not modify the device. Use a const pointer.

Signed-off-by: Simon Glass

pci: layerscape: device tree fixup based on SoC and

2020-01-24T08:58:26+00:00

lx2160a rev1 requires layerscape_gen4 device tree fixup and
lx2160a rev2 requires layerscape device tree fixup.
Add device tree fixup for lx2160a based on SoC and Version.

Signed-off-by: Wasim Khan 
Reviewed-by: Priyanka Jain

pci: layerscape: Move streamId allocation to common device tree fixup

2020-01-24T08:58:26+00:00

Move streamId allocation to layerscape common device tree fixup.
Calculate streamId based on SoC variant.

Signed-off-by: Wasim Khan 
Reviewed-by: Priyanka Jain

pci: layerscape: Common device tree fixup for NXP SoCs

2020-01-24T08:58:26+00:00

Add Common device tree fixup for NXP SoCs. Based on
SoC and revision call pcie_layerscape or pcie_layerscape_gen4
fixup.

Signed-off-by: Wasim Khan 
Reviewed-by: Priyanka Jain

pci: layerscape: Fix the BARs disable function

2020-01-24T08:58:26+00:00

There is not any difference for disabling BARs in RC mode
between PCIe controllers with and without SRIOV.

Fixes: 80afc63fc342 ("pci: layerscape: add pci driver based on DM")
Signed-off-by: Hou Zhiqiang 
Reviewed-by: Priyanka Jain

pci: layerscape: Fix the disabling of Expansion ROM BAR

2020-01-24T08:58:26+00:00

The software will still get non-zero Expansion ROM BAR size
even when the BAR_EN bit is cleared. The BAR_EN bit of
register EXP_ROM_BAR_MASK_RC is not working as expected,
so this patch changes to mask all the bits.

Fixes: 80afc63fc342 ("pci: layerscape: add pci driver based on DM")
Signed-off-by: Hou Zhiqiang 
Reviewed-by: Priyanka Jain