| Message ID | 20220902142202.2437658-3-daire.mcnamara@microchip.com |
|---|---|
| State | New |
| Headers | show |
| Series | PCI: microchip: apportion address translation between rootport and FPGA | expand |
On 02/09/2022 15:22, daire.mcnamara@microchip.com wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > From: Daire McNamara <daire.mcnamara@microchip.com> > > On PolarFire SoC both in- & out-bound address translations occur in two > stages. The specific translations are tightly coupled to the FPGA > designs and supplement the {dma-,}ranges properties. The first stage of > the translation is done by the FPGA fabric & the second by the root > port. > Add outbound address translation information so that the translation > tables in the root port's bridge layer can be configured to account for > the translation done by the FPGA fabric on Icicle Kit reference design. > > Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com> As an FYI to the PCI maintainers, I'll take this patch through the RISC-V tree once everything else is approved as it conflicts with some other changes that are pending there. Thanks, Conor. > --- > arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi > index 98f04be0dc6b..6839650e7d1b 100644 > --- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi > +++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi > @@ -57,7 +57,11 @@ pcie: pcie@3000000000 { > interrupt-map-mask = <0 0 0 7>; > clocks = <&fabric_clk1>, <&fabric_clk3>; > clock-names = "fic1", "fic3"; > - ranges = <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; > + ranges = <0x0000000 0x0 0x0000000 0x30 0x0000000 0x0 0x8000000>, > + <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; > + microchip,outbound-fabric-translation-ranges = > + <0x0000000 0x0 0x0000000 0x30 0x0000000 0x0 0x8000000>, > + <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; > dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000 0x1 0x00000000>; > msi-parent = <&pcie>; > msi-controller; > -- > 2.25.1 > > > _______________________________________________ > linux-riscv mailing list > linux-riscv@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-riscv
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi index 98f04be0dc6b..6839650e7d1b 100644 --- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi +++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi @@ -57,7 +57,11 @@ pcie: pcie@3000000000 { interrupt-map-mask = <0 0 0 7>; clocks = <&fabric_clk1>, <&fabric_clk3>; clock-names = "fic1", "fic3"; - ranges = <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; + ranges = <0x0000000 0x0 0x0000000 0x30 0x0000000 0x0 0x8000000>, + <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; + microchip,outbound-fabric-translation-ranges = + <0x0000000 0x0 0x0000000 0x30 0x0000000 0x0 0x8000000>, + <0x3000000 0x0 0x8000000 0x30 0x8000000 0x0 0x80000000>; dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000 0x1 0x00000000>; msi-parent = <&pcie>; msi-controller;