On 5/25/23 11:49, Stefan Roese wrote:
This patch adds the PCIe controller driver for the Xilinx / AMD ZynqMP
NWL PCIe Bridge as root port. The driver source is partly copied from
the Linux PCI driver and modified to enable usage in U-Boot (e.g.
simplified and interrupt support removed).
Signed-off-by: Stefan Roese <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Pali Rohár <[email protected]>
Cc: Bin Meng <[email protected]>
Cc: Michal Simek <[email protected]>
---
v2:
- Remove some unused members from struct nwl_pcie
- Fix usage of dev_seq() in nwl_pcie_config_address()
- Remove writing to PCI_PRIMARY_BUS reg as this is done by the
common U-Boot PCI code later
MAINTAINERS | 1 +
drivers/pci/Kconfig | 7 +
drivers/pci/Makefile | 1 +
drivers/pci/pcie-xilinx-nwl.c | 352 ++++++++++++++++++++++++++++++++++
4 files changed, 361 insertions(+)
create mode 100644 drivers/pci/pcie-xilinx-nwl.c
Tested-by: Michal Simek <[email protected]>
Acked-by: Michal Simek <[email protected]>
I am happy to take this via my tree if you like.
We should also enable this driver by default in xilinx_zynqmp_virt_defconfig and
likely any pcie driver to be able to test it.
I used e1000 based card and it works as expected.
Thanks,
Michal
