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Message-ID: <be034a0b-7b3c-8b17-c3f7-776ad1839f55@codeaurora.org>
Date: Sat, 11 Apr 2020 06:24:55 +0530
From: Sivaprakash Murugesan <sivaprak@...eaurora.org>
To: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: agross@...nel.org, kishon@...com, robh+dt@...nel.org,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org,
Balaji Prakash J <bjagadee@...eaurora.org>
Subject: Re: [PATCH 3/3] arm64: dts: ipq8074: enable USB support
Hi Bjorn,
On 4/11/2020 3:47 AM, Bjorn Andersson wrote:
> On Fri 10 Apr 11:29 PDT 2020, Sivaprakash Murugesan wrote:
>
>> IPQ8074 has two super speed usb ports, add phy and dwc3 nodes
>> to enable them.
>>
> Thanks Sivaprakash, your patch looks good, just some comments on the
> style below.
>
>> Co-developed-by: Balaji Prakash J <bjagadee@...eaurora.org>
>> Signed-off-by: Balaji Prakash J <bjagadee@...eaurora.org>
>> Signed-off-by: Sivaprakash Murugesan <sivaprak@...eaurora.org>
>> ---
>> arch/arm64/boot/dts/qcom/ipq8074-hk01.dts | 24 +++++
>> arch/arm64/boot/dts/qcom/ipq8074.dtsi | 168 ++++++++++++++++++++++++++++++
>> 2 files changed, 192 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts b/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts
>> index 70be3f9..dd27d84 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts
>> +++ b/arch/arm64/boot/dts/qcom/ipq8074-hk01.dts
>> @@ -26,6 +26,22 @@
>> };
>>
>> soc {
>> + ssphy@...00 {
> Please reference these by label, like we do in e.g. sdm845-mtp.dts.
ok.
>
>> + status = "ok";
>> + };
>> +
>> + qusb@...00 {
>> + status = "ok";
>> + };
>> +
>> + ssphy@...00 {
>> + status = "ok";
>> + };
>> +
>> + qusb@...00 {
>> + status = "ok";
>> + };
>> +
>> serial@...3000 {
>> status = "ok";
>> };
>> @@ -65,6 +81,14 @@
>> };
>> };
>>
>> + usb3@...0000 {
>> + status = "ok";
>> + };
>> +
>> + usb3@...0000 {
>> + status = "ok";
>> + };
>> +
>> phy@...00 {
>> status = "ok";
>> };
>> diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> index 2b31823..47bb9ad 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
>> @@ -16,6 +16,92 @@
>> ranges = <0 0 0 0xffffffff>;
>> compatible = "simple-bus";
>>
>> + ssphy_1: ssphy@...00 {
> Please use the generic name of "phy" here (i.e. ssphy_1: phy@...00 {)
ok.
>
>> + compatible = "qcom,ipq8074-qmp-usb3-phy";
>> + reg = <0x00058000 0x1c4>;
>> + status = "disabled";
>> + #clock-cells = <1>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_USB1_AUX_CLK>,
>> + <&gcc GCC_USB1_PHY_CFG_AHB_CLK>,
>> + <&xo>;
>> + clock-names = "aux", "cfg_ahb", "ref";
>> +
>> + resets = <&gcc GCC_USB1_PHY_BCR>,
>> + <&gcc GCC_USB3PHY_1_PHY_BCR>;
>> + reset-names = "phy","common";
>> +
>> + usb1_ssphy: lane@...00 {
>> + reg = <0x00058200 0x130>, /* Tx */
>> + <0x00058400 0x200>, /* Rx */
>> + <0x00058800 0x1F8>, /* PCS */
>> + <0x00058600 0x044>; /* PCS misc */
>> + #phy-cells = <0>;
>> + clocks = <&gcc GCC_USB1_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_usb1_pipe_clk_src";
>> + };
>> + };
>> +
>> + qusb_phy_1: qusb@...00 {
> phy@
ok.
>
>> + compatible = "qcom,msm8996-qusb2-phy";
> Please add and use a ipq8074 compatible to the driver (.data can point
> to msm8996_phy_cfg still).
sure, will do.
>
>> + reg = <0x00059000 0x180>;
>> + status = "disabled";
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_USB1_PHY_CFG_AHB_CLK>,
>> + <&xo>;
>> + clock-names = "cfg_ahb", "ref";
>> +
>> + resets = <&gcc GCC_QUSB2_1_PHY_BCR>;
>> + };
>> +
>> + ssphy_0: ssphy@...00 {
> phy@
ok.
>> + compatible = "qcom,ipq8074-qmp-usb3-phy";
>> + reg = <0x00078000 0x1c4>;
>> + status = "disabled";
>> + #clock-cells = <1>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_USB0_AUX_CLK>,
>> + <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
>> + <&xo>;
>> + clock-names = "aux", "cfg_ahb", "ref";
>> +
>> + resets = <&gcc GCC_USB0_PHY_BCR>,
>> + <&gcc GCC_USB3PHY_0_PHY_BCR>;
>> + reset-names = "phy","common";
>> +
>> + usb0_ssphy: lane@...00 {
>> + reg = <0x00078200 0x130>, /* Tx */
>> + <0x00078400 0x200>, /* Rx */
>> + <0x00078800 0x1F8>, /* PCS */
>> + <0x00078600 0x044>; /* PCS misc */
>> + #phy-cells = <0>;
>> + clocks = <&gcc GCC_USB0_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_usb0_pipe_clk_src";
>> + };
>> + };
>> +
>> + qusb_phy_0: qusb@...00 {
> phy@
ok.
>
>> + compatible = "qcom,msm8996-qusb2-phy";
>> + reg = <0x00079000 0x180>;
>> + status = "disabled";
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>,
>> + <&xo>;
>> + clock-names = "cfg_ahb", "ref";
>> +
>> + resets = <&gcc GCC_QUSB2_0_PHY_BCR>;
>> + };
>> +
>> tlmm: pinctrl@...0000 {
>> compatible = "qcom,ipq8074-pinctrl";
>> reg = <0x1000000 0x300000>;
>> @@ -272,6 +358,88 @@
>> status = "disabled";
>> };
>>
>> + usb3_0: usb3@...0000 {
> usb@ and please lower case and make sure the unit address matches the
> reg.
ok.
>
>> + compatible = "qcom,dwc3";
>> + reg = <0x08af8800 0x400>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_SYS_NOC_USB0_AXI_CLK>,
>> + <&gcc GCC_USB0_MASTER_CLK>,
>> + <&gcc GCC_USB0_SLEEP_CLK>,
>> + <&gcc GCC_USB0_MOCK_UTMI_CLK>;
>> + clock-names = "sys_noc_axi",
>> + "master",
>> + "sleep",
>> + "mock_utmi";
>> +
>> + assigned-clocks = <&gcc GCC_SYS_NOC_USB0_AXI_CLK>,
>> + <&gcc GCC_USB0_MASTER_CLK>,
>> + <&gcc GCC_USB0_MOCK_UTMI_CLK>;
>> + assigned-clock-rates = <133330000>,
>> + <133330000>,
>> + <19200000>;
>> +
>> + resets = <&gcc GCC_USB0_BCR>;
>> + status = "disabled";
>> +
>> + dwc_0: dwc3@...0000 {
> Please lowercase the address
ok.
>
>> + compatible = "snps,dwc3";
>> + reg = <0x8A00000 0xcd00>;
> Ditto.
ok.
>
>> + interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
>> + phys = <&qusb_phy_0>, <&usb0_ssphy>;
>> + phy-names = "usb2-phy", "usb3-phy";
>> + tx-fifo-resize;
>> + snps,is-utmi-l1-suspend;
>> + snps,hird-threshold = /bits/ 8 <0x0>;
>> + snps,dis_u2_susphy_quirk;
>> + snps,dis_u3_susphy_quirk;
>> + dr_mode = "host";
>> + };
>> + };
>> +
>> + usb3_1: usb3@...0000 {
> usb@, lowercase and match reg.
ok
>
>> + compatible = "qcom,dwc3";
>> + reg = <0x08cf8800 0x400>;
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_SYS_NOC_USB1_AXI_CLK>,
>> + <&gcc GCC_USB1_MASTER_CLK>,
>> + <&gcc GCC_USB1_SLEEP_CLK>,
>> + <&gcc GCC_USB1_MOCK_UTMI_CLK>;
>> + clock-names = "sys_noc_axi",
>> + "master",
>> + "sleep",
>> + "mock_utmi";
>> +
>> + assigned-clocks = <&gcc GCC_SYS_NOC_USB1_AXI_CLK>,
>> + <&gcc GCC_USB1_MASTER_CLK>,
>> + <&gcc GCC_USB1_MOCK_UTMI_CLK>;
>> + assigned-clock-rates = <133330000>,
>> + <133330000>,
>> + <19200000>;
>> +
>> + resets = <&gcc GCC_USB1_BCR>;
>> + status = "disabled";
>> +
>> + dwc_1: dwc3@...0000 {
> Please lowercase
ok
>
>> + compatible = "snps,dwc3";
>> + reg = <0x8C00000 0xcd00>;
> Ditto.
ok
>
>> + interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
>> + phys = <&qusb_phy_1>, <&usb1_ssphy>;
>> + phy-names = "usb2-phy", "usb3-phy";
>> + tx-fifo-resize;
>> + snps,is-utmi-l1-suspend;
>> + snps,hird-threshold = /bits/ 8 <0x0>;
>> + snps,dis_u2_susphy_quirk;
>> + snps,dis_u3_susphy_quirk;
>> + dr_mode = "host";
>> + };
>> + };
>> +
>> pcie_phy0: phy@...00 {
>> compatible = "qcom,ipq8074-qmp-pcie-phy";
>> reg = <0x86000 0x1000>;
> If you could send a separate patch (after this is merged is okay) that
> sort the nodes in this file by address, it would be much appreciated.
sure. Based on the comments above the dts needs clean. will send a
separate patch for it.
>
> Regards,
> Bjorn
Thanks,
Siva
>> --
>> 2.7.4
>>
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