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| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2022-06-24 17:34:12 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2022-07-05 19:00:51 -0500 |
| commit | d1cf738f2b65a5640234e1da90a68d3523fbed83 (patch) | |
| tree | efe07b7ae007e5c93e719324d928f8fa4837489d /drivers/pci/controller/dwc/pcie-designware-host.c | |
| parent | 113fa857b74c947137d845e7e635afcf6a59c43a (diff) | |
PCI: dwc: Add unroll iATU space support to dw_pcie_disable_atu()
dw_pcie_disable_atu() was introduced by f8aed6ec624f ("PCI: dwc:
designware: Add EP mode support") and supported only the viewport version
of the iATU CSRs.
DW PCIe IP cores v4.80a and newer also support unrolled iATU/eDMA space.
Callers of dw_pcie_disable_atu(), including pci_epc_ops.clear_bar(),
pci_epc_ops.unmap_addr(), and dw_pcie_setup_rc(), don't work correctly when
it is enabled.
Add dw_pcie_disable_atu() support for controllers with unrolled iATU CSRs
enabled.
[bhelgaas: commit log]
Fixes: f8aed6ec624f ("PCI: dwc: designware: Add EP mode support")
Link: https://lore.kernel.org/r/20220624143428.8334-3-Sergey.Semin@baikalelectronics.ru
Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-designware-host.c')
0 files changed, 0 insertions, 0 deletions