This series enables the DesignWare based PCIe controller on the rk356x series of chips. We drop the fallback to the core driver due to compatibility issues. We reset the PCIe controller at driver probe to prevent issues in the future when firmware / kexec leaves the controller in an unknown state. We add support for legacy interrupts for cards that lack MSI support (which is partially broken currently). We then add the device tree nodes to enable PCIe on the Quartz64 Model A. Patch 1 drops the snps,dw,pcie fallback from the dt-binding Patch 2 resets the PCIe controller to prevent configuration bugs Patch 3 adds legacy interrupt support to the driver Patch 4 adds the device tree binding to the rk356x.dtsi Patch 5 enables the PCIe controller on the Quartz64-A Changelog: v9: - move reset_control_assert out of rockchip_pcie_resource_get - fix various formatting mistakes - fix a checkpatch warning v8: - add core reset patch - simplify IRQ enable/disable functions - drop spinlock - only enable/disable IRQ requested - only pass the IRQ register bits used to irq functions v7: - drop assigned-clocks v6: - fix a ranges issue - point to GIC instead of ITS v5: - fix incorrect series (apologies for the v4 spam) v4: - drop the ITS modification, poor compatibility is better than completely broken v3: - drop select node from dt-binding - convert to for_each_set_bit - convert to generic_handle_domain_irq - drop unncessary dev_err - reorder irq_chip items - change to level_irq - install the handler after initializing the domain v2: - Define PCIE_CLIENT_INTR_STATUS_LEGACY - Fix PCIE_LEGACY_INT_ENABLE to only enable the RC interrupts - Add legacy interrupt enable/disable support Peter Geis (5): dt-bindings: PCI: Remove fallback from Rockchip DesignWare binding PCI: rockchip-dwc: Reset core at driver probe PCI: rockchip-dwc: Add legacy interrupt support arm64: dts: rockchip: Add rk3568 PCIe2x1 controller arm64: dts: rockchip: Enable PCIe controller on quartz64-a .../bindings/pci/rockchip-dw-pcie.yaml | 12 +- .../boot/dts/rockchip/rk3566-quartz64-a.dts | 34 +++++ arch/arm64/boot/dts/rockchip/rk356x.dtsi | 52 ++++++++ drivers/pci/controller/dwc/pcie-dw-rockchip.c | 119 +++++++++++++++--- 4 files changed, 191 insertions(+), 26 deletions(-) -- 2.25.1
