kbuild: support ccflags-y, asflags-y, cppflags-y, and ldflags-y ...

Some Makefiles use ccflags-y, but it is not actually supported.
Support ccflags-y, asflags-y, cppflags-y, and ldflags-y like Linux.

Remove the workaround in drivers/pci/Makefile.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

PCI: Add layerscape PCIe driver ...

This adds support for the designware based PCIe controller found on
Layerscape SoCs. The driver is based on Linux-5.4. The device tree
fixups have been taken from U-Boot 2019.10.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

PCI: dwc: Split pcie-designware.c into host and core files ...

Port of a Linux commit feb85d9

  Split pcie-designware.c into pcie-designware-host.c that contains the host
  specific parts of the driver and pcie-designware.c that contains the parts
  used by both host driver and endpoint driver.

  Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
  Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pci: Add i.MX6 pcie support ...

Based on the corresponding kernel driver with changes to make it
work on barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pci: Add pcie-designware driver ...

Based on the corresponding kernel driver, only small changes
to make it work on barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pci: add Tegra host controller driver ...

Only tested on Tegra30 for now.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pci: mvebu: Add PCIe driver ...

This adds a PCI driver for the controllers found on Marvell MVEBU SoCs.
Besides the functional driver itself, it also adds SoC specific PHY
setup required for PCIe. Currently, only Armada 370 is fully supported.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

PCI: initial commit ...

used shorten version of linux-2.6.39 pci_ids.h

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>