[v10,00/11] Add support for Hikey 970 PCIe

Message

Mauro Carvalho Chehab Aug. 10, 2021, 9:55 a.m. UTC

The DT schema used by this series got merged at:

	https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/log/?h=dt/next

The series should apply cleanly on the top of v5.14-rc1.

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)

---

v10:
  - patch 1: dropped magic numbers from PHY driver
  - patch 5: allow pcie child nodes without reset-gpios
  - remaining patches untouched.

v9:
  - Did some cleanups at patches 1 and 5


Mauro Carvalho Chehab (11):
  phy: HiSilicon: Add driver for Kirin 970 PCIe PHY
  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 | 642 ++++++++++++++----
 drivers/phy/hisilicon/Kconfig           |  10 +
 drivers/phy/hisilicon/Makefile          |   1 +
 drivers/phy/hisilicon/phy-hi3670-pcie.c | 857 ++++++++++++++++++++++++
 5 files changed, 1364 insertions(+), 148 deletions(-)
 create mode 100644 drivers/phy/hisilicon/phy-hi3670-pcie.c