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Use ranges in bus@c0000000 to indicate address translation, as the bus fabric trims CPU address 0xc000_0000..0xdfff_ffff to 0x0000_0000..0x1fff_ffff. Set 'config' and 'addr_space' reg values to 0. Change parent bus address of downstream I/O and non-prefetchable memory to 0. Ensure no functional impact on the final address translation result. Prepare for the removal of the driver’s cpu_addr_fixup(). Signed-off-by: Frank Li --- arch/arm/boot/dts/axis/artpec6.dtsi | 92 ++++++++++++++++++++----------------- 1 file changed, 50 insertions(+), 42 deletions(-) diff --git a/arch/arm/boot/dts/axis/artpec6.dtsi b/arch/arm/boot/dts/axis/artpec6.dtsi index 037157e6c5ee3..399e87f72865f 100644 --- a/arch/arm/boot/dts/axis/artpec6.dtsi +++ b/arch/arm/boot/dts/axis/artpec6.dtsi @@ -155,49 +155,57 @@ pmu { interrupt-affinity = <&cpu0>, <&cpu1>; }; - /* - * Both pci nodes cannot be enabled at the same time, - * leave the unwanted node as disabled. - */ - pcie: pcie@f8050000 { - compatible = "axis,artpec6-pcie", "snps,dw-pcie"; - reg = <0xf8050000 0x2000 - 0xf8040000 0x1000 - 0xc0000000 0x2000>; - reg-names = "dbi", "phy", "config"; - #address-cells = <3>; - #size-cells = <2>; - device_type = "pci"; - /* downstream I/O */ - ranges = <0x81000000 0 0 0xc0002000 0 0x00010000 - /* non-prefetchable memory */ - 0x82000000 0 0xc0012000 0xc0012000 0 0x1ffee000>; - num-lanes = <2>; - bus-range = <0x00 0xff>; - interrupts = ; - interrupt-names = "msi"; - #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0x7>; - interrupt-map = <0 0 0 1 &intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 2 &intc GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 3 &intc GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>, - <0 0 0 4 &intc GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>; - axis,syscon-pcie = <&syscon>; - status = "disabled"; - }; + bus@c0000000 { + compatible = "simple-bus"; + ranges = <0x0 0xc0000000 0x20000000>, + <0xf8000000 0xf8000000 0x80000>; + #address-cells = <1>; + #size-cells = <1>; - pcie_ep: pcie_ep@f8050000 { - compatible = "axis,artpec6-pcie-ep", "snps,dw-pcie"; - reg = <0xf8050000 0x2000 - 0xf8051000 0x2000 - 0xf8040000 0x1000 - 0xc0000000 0x20000000>; - reg-names = "dbi", "dbi2", "phy", "addr_space"; - num-ib-windows = <6>; - num-ob-windows = <2>; - num-lanes = <2>; - axis,syscon-pcie = <&syscon>; - status = "disabled"; + /* + * Both pci nodes cannot be enabled at the same time, + * leave the unwanted node as disabled. + */ + pcie: pcie@f8050000 { + compatible = "axis,artpec6-pcie", "snps,dw-pcie"; + reg = <0xf8050000 0x2000 + 0xf8040000 0x1000 + 0x00000000 0x2000>; + reg-names = "dbi", "phy", "config"; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + /* downstream I/O */ + ranges = <0x81000000 0 0 0x00002000 0 0x00010000 + /* non-prefetchable memory */ + 0x82000000 0 0xc0012000 0x00012000 0 0x1ffee000>; + num-lanes = <2>; + bus-range = <0x00 0xff>; + interrupts = ; + interrupt-names = "msi"; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 2 &intc GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>; + axis,syscon-pcie = <&syscon>; + status = "disabled"; + }; + + pcie_ep: pcie_ep@f8050000 { + compatible = "axis,artpec6-pcie-ep", "snps,dw-pcie"; + reg = <0xf8050000 0x2000 + 0xf8051000 0x2000 + 0xf8040000 0x1000 + 0x00000000 0x20000000>; + reg-names = "dbi", "dbi2", "phy", "addr_space"; + num-ib-windows = <6>; + num-ob-windows = <2>; + num-lanes = <2>; + axis,syscon-pcie = <&syscon>; + status = "disabled"; + }; }; pinctrl: pinctrl@f801d000 {