[v13,00/10] Add support for Hikey 970 PCIe

Message

Mauro Carvalho Chehab Oct. 18, 2021, 7:07 a.m. UTC

Hi Lorenzo,

That's basically the same patches sent on v12, with the acked-by from
the driver's maintainer (Xiaowei Song) properly added on each patch
of the series.

The pcie-kirin PCIe driver contains internally a PHY interface for
Kirin 960, but it misses support for Kirin 970.

Patch1 contains a PHY for Kirin 970 PCIe.

The remaining patches add support for Kirin 970 at the pcie-kirin driver, and
add the needed logic to compile it as module and to allow to dynamically
remove the driver in runtime.

Tested on HiKey970:

  # lspci -D -PP
  0000:00:00.0 PCI bridge: Huawei Technologies Co., Ltd. Device 3670 (rev 01)
  0000:00:00.0/01:00.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:01.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:04.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:05.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:07.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:09.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:01.0/03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
  0000:00:00.0/01:00.0/02:07.0/06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)

Tested on HiKey960:

  # lspci -D 
  0000:00:00.0 PCI bridge: Huawei Technologies Co., Ltd. Device 3660 (rev 01)

---

v13:
  - Added Xiaowei's ack for the series.

v12:
  - Change a comment at patch 1 to not use c99 style.

v11:
  - patch 5 changed to use the right PCIe topology
  - all other patches are identical to v10.

v10:
  - patch 1: dropped magic numbers from PHY driver
  - patch 5: allow pcie child nodes without reset-gpios
  - all other patches are identical to v9.

v9:
  - Did some cleanups at patches 1 and 5

Mauro Carvalho Chehab (10):
  PCI: kirin: Reorganize the PHY logic inside the driver
  PCI: kirin: Add support for a PHY layer
  PCI: kirin: Use regmap for APB registers
  PCI: kirin: Add support for bridge slot DT schema
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: fix poweroff sequence
  PCI: kirin: Allow removing the driver

 drivers/pci/controller/dwc/Kconfig      |   2 +-
 drivers/pci/controller/dwc/pcie-kirin.c | 644 ++++++++++++++++++------
 2 files changed, 498 insertions(+), 148 deletions(-)