Thread (8 messages) 8 messages, 3 authors, 2021-02-08

Re: [PATCH 3/3] arm64: dts: ipq6018: enable USB2 support

From: Kathiravan T <hidden>
Date: 2021-02-08 05:45:21

On 2021-02-07 14:38, Baruch Siach wrote:
Hi Kathiravan T,

Thanks for your review.

On Fri, Feb 05 2021, Kathiravan T wrote:
quoted
On 2021-01-27 19:50, Baruch Siach wrote:
quoted
From: Kathiravan T <redacted>
Signed-off-by: Kathiravan T <redacted>
[baruch: adjust regs address/size; drop binding updates;
 drop unsupported quirk properties]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
 arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts |  8 ++++
 arch/arm64/boot/dts/qcom/ipq6018.dtsi        | 48 
++++++++++++++++++++
 2 files changed, 56 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
b/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
index 99cefe88f6f2..5aec18308712 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
+++ b/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
@@ -78,3 +78,11 @@ nand@0 {
 		nand-bus-width = <8>;
 	};
 };
+
+&qusb_phy_1 {
+	status = "ok";
+};
+
+&usb2 {
+	status = "ok";
+};
diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index 9fa5b028e4f3..d4a3d4e4a7e9 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -524,6 +524,54 @@ qrtr_requests {
 			};
 		};
+		qusb_phy_1: qusb@59000 {
+			compatible = "qcom,ipq6018-qusb2-phy";
+			reg = <0x0 0x059000 0x0 0x180>;
+			#phy-cells = <0>;
+
+			clocks = <&gcc GCC_USB1_PHY_CFG_AHB_CLK>,
+				 <&xo>;
+			clock-names = "cfg_ahb", "ref";
As per the bindings, ref clock should be 19.2MHz where the XO in 
IPQ60xx is
24MHz. Did the USB enumerated successfully and able to perform read / 
write
operations?
I managed to enumerate an Ethernet USB dongle with only this series
applied.  But then I tested again with USB storage device. That only
worked with downstream clock adjust/period patch:


https://source.codeaurora.org/quic/qsdk/oss/kernel/linux-ipq-5.4/commit/?h=fig&id=707d8fa2b481888f4792edc6561e81999301cbcf

That patch applies cleanly on top of v5.11-rc4.

Is anyone at Codeaurora pushing the dwc3 clock patch upstream? Should I
do that?
Sure, please go ahead.
Thanks,
baruch
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a 
member of Code Aurora Forum, hosted by The Linux Foundation
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