From: Thierry Reding <treding@xxxxxxxxxx>
Add support for the PCI host controller found on Tegra210 SoCs. It is
very similar to the variant found on Tegra124, with a couple of small
differences regarding the power supplies.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
.../bindings/pci/nvidia,tegra20-pcie.txt | 110 +++++++++++++++++++++
1 file changed, 110 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
index b8cc395fffea..982a74ea6df9 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
@@ -110,6 +110,20 @@ Power supplies for Tegra124:
- avdd-pll-erefe-supply: Power supply for PLLE (shared with USB3). Must
supply 1.05 V.
+Power supplies for Tegra210:
+- Required:
+ - avdd-pll-uerefe-supply: Power supply for PLLE (shared with USB3). Must
+ supply 1.05 V.
+ - hvddio-pex-supply: High-voltage supply for PCIe I/O and PCIe output
+ clocks. Must supply 1.8 V.
+ - dvddio-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V.
+ - dvdd-pex-pll-supply: Power supply for dedicated (internal) PCIe PLL. Must
+ supply 1.05 V.
+ - hvdd-pex-pll-e-supply: High-voltage supply for PLLE (shared with USB3).
+ Must supply 3.3 V.
+ - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must
+ supply 1.8 V.
+
Root ports are defined as subnodes of the PCIe controller node.
Required properties:
@@ -436,3 +450,99 @@ Board DTS:
status = "okay";
};
};
+
+Tegra210:
+---------
+
+SoC DTSI:
+
+ pcie-controller@01003000 {
+ compatible = "nvidia,tegra210-pcie";
+ device_type = "pci";
+ reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */
+ 0x0 0x01003800 0x0 0x00000800 /* AFI registers */
+ 0x0 0x02000000 0x0 0x10000000>; /* configuration space */
+ reg-names = "pads", "afi", "cs";
+ interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+ interrupt-names = "intr", "msi";
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0x00 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ranges = <0x82000000 0 0x01000000 0x0 0x01000000 0 0x00001000 /* port 0 configuration space */
+ 0x82000000 0 0x01001000 0x0 0x01001000 0 0x00001000 /* port 1 configuration space */
+ 0x81000000 0 0x0 0x0 0x12000000 0 0x00010000 /* downstream I/O (64 KiB) */
+ 0x82000000 0 0x13000000 0x0 0x13000000 0 0x0d000000 /* non-prefetchable memory (208 MiB) */
+ 0xc2000000 0 0x20000000 0x0 0x20000000 0 0x20000000>; /* prefetchable memory (512 MiB) */
+
+ clocks = <&tegra_car TEGRA210_CLK_PCIE>,
+ <&tegra_car TEGRA210_CLK_AFI>,
+ <&tegra_car TEGRA210_CLK_PLL_E>,
+ <&tegra_car TEGRA210_CLK_CML0>;
+ clock-names = "pex", "afi", "pll_e", "cml";
+ resets = <&tegra_car 70>,
+ <&tegra_car 72>,
+ <&tegra_car 74>;
+ reset-names = "pex", "afi", "pcie_x";
+ status = "disabled";
+
+ pci@1,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82000800 0 0x01000000 0 0x1000>;
+ reg = <0x000800 0 0 0 0>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <4>;
+ };
+
+ pci@2,0 {
+ device_type = "pci";
+ assigned-addresses = <0x82001000 0 0x01001000 0 0x1000>;
+ reg = <0x001000 0 0 0 0>;
+ status = "disabled";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+
+ nvidia,num-lanes = <1>;
+ };
+ };
+
+Board DTS:
+
+ pcie-controller@01003000 {
+ status = "okay";
+
+ avdd-pll-uerefe-supply = <&avdd_1v05_pll>;
+ hvddio-pex-supply = <&vdd_1v8>;
+ dvddio-pex-supply = <&vdd_pex_1v05>;
+ dvdd-pex-pll-supply = <&vdd_pex_1v05>;
+ hvdd-pex-pll-e-supply = <&vdd_1v8>;
+ vddio-pex-ctl-supply = <&vdd_1v8>;
+
+ pci@1,0 {
+ phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-0}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-1}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-2}>,
+ <&{/padctl@7009f000/pads/pcie/lanes/pcie-3}>;
+ phy-names = "pcie-0", "pcie-1", "pcie-2", "pcie-3";
+ status = "okay";
+ };
+
+ pci@2,0 {
+ phys = <&{/padctl@7009f000/pads/pcie/lanes/pcie-4}>;
+ phy-names = "pcie-0";
+ status = "okay";
+ };
+ };
--
2.10.2
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