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| author | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2020-12-08 17:44:02 +0530 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-12-09 15:07:11 +0000 |
| commit | 4c9398822106c366d88c8c68ddf44bd371d39961 (patch) | |
| tree | 39bbeef404ee4db7d1e3a00270657f62168e25fa /drivers/pci/controller/dwc/Kconfig | |
| parent | e1dd639e374a1345c63eb7e8931e08de7cb8f904 (diff) | |
| download | linux-4c9398822106c366d88c8c68ddf44bd371d39961.tar.bz2 | |
PCI: qcom: Add support for configuring BDF to SID mapping for SM8250
For SM8250, we need to write the BDF to SID mapping in PCIe controller
register space for proper working. This is accomplished by extracting
the BDF and SID values from "iommu-map" property in DT and writing those
in the register address calculated from the hash value of BDF. In case
of collisions, the index of the next entry will also be written.
For the sake of it, let's introduce a "config_sid" callback and do it
conditionally for SM8250.
Link: https://lore.kernel.org/r/20201208121402.178011-4-mani@kernel.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/pci/controller/dwc/Kconfig')
| -rw-r--r-- | drivers/pci/controller/dwc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig index 9ee1e248e744..dd4596bdda49 100644 --- a/drivers/pci/controller/dwc/Kconfig +++ b/drivers/pci/controller/dwc/Kconfig @@ -174,6 +174,7 @@ config PCIE_QCOM depends on OF && (ARCH_QCOM || COMPILE_TEST) depends on PCI_MSI_IRQ_DOMAIN select PCIE_DW_HOST + select CRC8 help Say Y here to enable PCIe controller support on Qualcomm SoCs. The PCIe controller uses the DesignWare core plus Qualcomm-specific |