Re: [PATCH 1/2] arm64: dts: qcom: Add support for usb nodes on QCS8300

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On 10/10/2024 7:52 PM, Dmitry Baryshkov wrote:
On Thu, Oct 10, 2024 at 01:26:35AM GMT, Krishna Kurapati wrote:
Add support for USB controllers on QCS8300. The second
controller is only High Speed capable.

Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/qcs8300.dtsi | 165 ++++++++++++++++++++++++++
  1 file changed, 165 insertions(+)

[...]

+
+		usb_2: usb@a4f8800 {
+			compatible = "qcom,qcs8300-dwc3", "qcom,dwc3";
+			reg = <0x0 0x0a4f8800 0x0 0x400>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			clocks = <&gcc GCC_CFG_NOC_USB2_PRIM_AXI_CLK>,
+				 <&gcc GCC_USB20_MASTER_CLK>,
+				 <&gcc GCC_AGGRE_USB2_PRIM_AXI_CLK>,
+				 <&gcc GCC_USB20_SLEEP_CLK>,
+				 <&gcc GCC_USB20_MOCK_UTMI_CLK>;
+			clock-names = "cfg_noc",
+				      "core",
+				      "iface",
+				      "sleep",
+				      "mock_utmi";
+
+			assigned-clocks = <&gcc GCC_USB20_MOCK_UTMI_CLK>,
+					  <&gcc GCC_USB20_MASTER_CLK>;
+			assigned-clock-rates = <19200000>, <120000000>;
+
+			interrupts-extended = <&intc GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
+					      <&intc GIC_SPI 443 IRQ_TYPE_LEVEL_HIGH>,
+					      <&pdc 10 IRQ_TYPE_EDGE_BOTH>,
+					      <&pdc 9 IRQ_TYPE_EDGE_BOTH>;
+			interrupt-names = "pwr_event",
+					  "hs_phy_irq",
+					  "dp_hs_phy_irq",
+					  "dm_hs_phy_irq";
+
+			power-domains = <&gcc GCC_USB20_PRIM_GDSC>;
+			required-opps = <&rpmhpd_opp_nom>;
+
+			resets = <&gcc GCC_USB20_PRIM_BCR>;
+
+			interconnects = <&aggre1_noc MASTER_USB2 0 &mc_virt SLAVE_EBI1 0>,
+					<&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_USB2 0>;
+			interconnect-names = "usb-ddr", "apps-usb";

As this is a USB2-only host, shouldn't it also have qcom,select-utmi-as-pipe-clk ?


Hi Dmitry,

Thanks for the catch. You are right, it needs to be added according to bindings. Since I would be sending another patch after this series to enable the second controller, would it be fine if I add it in that patch or do you suggest updating this one.

Also I see some others are not using it as well, like sc7280 which also might need to be updated.

Regards,
Krishna,

+
+			status = "disabled";
+
+			usb_2_dwc3: usb@a400000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0x0a400000 0x0 0xe000>;
+				interrupts = <GIC_SPI 442 IRQ_TYPE_LEVEL_HIGH>;
+				iommus = <&apps_smmu 0x20 0x0>;
+				phys = <&usb_2_hsphy>;
+				phy-names = "usb2-phy";
+				snps,dis_u2_susphy_quirk;
+				snps,dis_enblslpm_quirk;
+			};
+		};
  	};
arch_timer: timer {
--
2.34.1






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