[v2,0/8] rockchip: Add PCIe host support

This series support PCIe host controller support
on rockchip rk3399 platform.

It is based on previous version[1] changes.

Works well on rk3399 boards like rock960, nanopc-t4 
and roc-kr3399-pc-mezzanine board as Gen1 configurable 
host with M.2 SSD.

Changes for v2:
- handle USB, GMAC clocks
- collect kever r-o-b tag
- simplify rd and wr conf API 

[1] http://patchwork.ozlabs.org/project/uboot/cover/20200425110354.12381-1-jagan at amarulasolutions.com/

Any inputs?
Jagan.

Jagan Teki (8):
  iopoll: Add dealy to read poll
  iopoll: Add readl_poll_sleep_timeout
  clk: rk3399: Add enable/disable clks
  clk: rk3399: Enable/Disable the PCIEPHY clk
  pci: Add Rockchip PCIe controller driver
  pci: Add Rockchip PCIe PHY controller driver
  rockchip: Enable PCIe/M.2 on rk3399 board w/ M.2
  rockchip: Enable PCIe/M.2 on rock960 board

 arch/arm/dts/rk3399-u-boot.dtsi             |   1 +
 board/vamrs/rock960_rk3399/rock960-rk3399.c |  20 +
 configs/nanopc-t4-rk3399_defconfig          |   4 +
 configs/roc-pc-mezzanine-rk3399_defconfig   |   4 +
 configs/rock960-rk3399_defconfig            |   5 +
 drivers/clk/rockchip/clk_rk3399.c           | 154 ++++++
 drivers/pci/Kconfig                         |   8 +
 drivers/pci/Makefile                        |   1 +
 drivers/pci/pcie_rockchip.c                 | 491 ++++++++++++++++++++
 drivers/pci/pcie_rockchip.h                 | 142 ++++++
 drivers/pci/pcie_rockchip_phy.c             | 205 ++++++++
 include/linux/iopoll.h                      |  23 +-
 12 files changed, 1049 insertions(+), 9 deletions(-)
 create mode 100644 drivers/pci/pcie_rockchip.c
 create mode 100644 drivers/pci/pcie_rockchip.h
 create mode 100644 drivers/pci/pcie_rockchip_phy.c