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Subject[PATCH 0/5] Add support for PCIe controller to work in endpoint mode on R-Car SoCs.
Date
From: "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>

This patch series adds support for PCIe controller on rcar to work in endpoint mode,
this also extends the epf framework to handle multiple outbound regions.

Note:
The cadence/rockchip/designware endpoint drivers are build tested only.

Endpoint configuration:
$ cd /sys/kernel/config/pci_ep
$ mkdir functions/pci_epf_test/func1
$ echo 0x1912 > functions/pci_epf_test/func1/vendorid
$ echo 0x002d > functions/pci_epf_test/func1/deviceid
$ echo 32 > functions/pci_epf_test/func1/msi_interrupts
$ ln -s functions/pci_epf_test/func1/ controllers/fe000000.pcie_ep/
$ echo 1 > controllers/fe000000.pcie_ep/start

Host side results:
lspci output:
01:00.0 Unassigned class [ff00]: Renesas Technology Corp. Device 002d
Flags: bus master, fast devsel, latency 0, IRQ 103
Memory at fe200200 (64-bit, non-prefetchable) [size=128]
Memory at fe200000 (64-bit, non-prefetchable) [size=256]
Memory at fe200100 (64-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
Capabilities: [70] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Kernel driver in use: pci-endpoint-test

pcitest results:

BAR tests

BAR0: OKAY
BAR1: NOT OKAY
BAR2: OKAY
BAR3: NOT OKAY
BAR4: OKAY
BAR5: NOT OKAY

Interrupt tests

SET IRQ TYPE TO LEGACY: OKAY
LEGACY IRQ: OKAY
Read Tests

SET IRQ TYPE TO LEGACY: OKAY
READ ( 1 bytes): OKAY
READ ( 1024 bytes): OKAY
READ ( 1025 bytes): OKAY
READ (1024000 bytes): OKAY
READ (1024001 bytes): OKAY

Write Tests

WRITE ( 1 bytes): OKAY
WRITE ( 1024 bytes): OKAY
WRITE ( 1025 bytes): OKAY
WRITE (1024000 bytes): OKAY
WRITE (1024001 bytes): OKAY

Copy Tests

COPY ( 1 bytes): OKAY
COPY ( 1024 bytes): OKAY
COPY ( 1025 bytes): OKAY
COPY (1024000 bytes): OKAY
COPY (1024001 bytes): OKAY

BAR tests for 1/3/5 fail because its configured to use 64bit bars

Lad, Prabhakar (5):
pci: pcie-rcar: preparation for adding endpoint support
pci: endpoint: add support to handle multiple base for mapping
outbound memory
PCI: rcar: Add R-Car PCIe endpoint device tree bindings
pci: rcar: add support for rcar pcie controller in endpoint mode
misc: pci_endpoint_test: add device-id for RZ/G2 pcie controller

.../devicetree/bindings/pci/rcar-pci-ep.txt | 43 +
arch/arm64/configs/defconfig | 2 +-
arch/arm64/configs/renesas_defconfig | 2 +-
drivers/misc/pci_endpoint_test.c | 3 +
drivers/pci/controller/Kconfig | 11 +-
drivers/pci/controller/Makefile | 3 +-
.../pci/controller/dwc/pcie-designware-ep.c | 30 +-
drivers/pci/controller/pcie-cadence-ep.c | 11 +-
drivers/pci/controller/pcie-rcar-ep.c | 483 +++++++
drivers/pci/controller/pcie-rcar-host.c | 1058 ++++++++++++++
drivers/pci/controller/pcie-rcar.c | 1231 +----------------
drivers/pci/controller/pcie-rcar.h | 129 ++
drivers/pci/controller/pcie-rockchip-ep.c | 13 +-
drivers/pci/endpoint/functions/pci-epf-test.c | 29 +-
drivers/pci/endpoint/pci-epc-core.c | 7 +-
drivers/pci/endpoint/pci-epc-mem.c | 189 ++-
include/linux/pci-epc.h | 43 +-
17 files changed, 2016 insertions(+), 1271 deletions(-)
create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
create mode 100644 drivers/pci/controller/pcie-rcar-ep.c
create mode 100644 drivers/pci/controller/pcie-rcar-host.c
create mode 100644 drivers/pci/controller/pcie-rcar.h

--
2.20.1

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