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Message-ID: <d2ad4b35-4aa3-8612-4a2a-1cb50cd05e44@quicinc.com>
Date: Mon, 20 Feb 2023 19:17:27 +0530
From: Devi Priya <quic_devipriy@...cinc.com>
To: Sricharan Ramabadhran <quic_srichara@...cinc.com>,
<agross@...nel.org>, <andersson@...nel.org>,
<konrad.dybcio@...aro.org>, <lpieralisi@...nel.org>,
<kw@...ux.com>, <robh@...nel.org>, <bhelgaas@...gle.com>,
<krzysztof.kozlowski+dt@...aro.org>, <vkoul@...nel.org>,
<kishon@...nel.org>, <mturquette@...libre.com>, <sboyd@...nel.org>,
<mani@...nel.org>, <p.zabel@...gutronix.de>,
<svarbanov@...sol.com>, <linux-arm-msm@...r.kernel.org>,
<linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
<linux-clk@...r.kernel.org>
CC: <quic_gokulsri@...cinc.com>, <quic_sjaganat@...cinc.com>,
<quic_kathirav@...cinc.com>, <quic_arajkuma@...cinc.com>,
<quic_anusha@...cinc.com>
Subject: Re: [PATCH 7/7] arm64: dts: qcom: ipq9574: Add PCIe PHYs and
controller nodes
On 2/17/2023 2:05 PM, Sricharan Ramabadhran wrote:
>
> Hi Devi,
>
> On 2/14/2023 10:11 PM, Devi Priya wrote:
>> Add PCIe0, PCIe1, PCIe2, PCIe3 (and corresponding PHY) devices
>> found on IPQ9574 platform. The PCIe0 & PCIe1 are 1-lane Gen3
>> host whereas PCIe2 & PCIe3 are 2-lane Gen3 host.
>>
>> Co-developed-by: Anusha Rao <quic_anusha@...cinc.com>
>> Signed-off-by: Anusha Rao <quic_anusha@...cinc.com>
>> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
>> ---
>> arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts | 28 ++
>> arch/arm64/boot/dts/qcom/ipq9574.dtsi | 477 ++++++++++++++++++-
>> 2 files changed, 499 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
>> b/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
>> index 2c8430197ec0..21b53f34ce84 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
>> +++ b/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
>> @@ -8,6 +8,7 @@
>> /dts-v1/;
>> +#include <dt-bindings/gpio/gpio.h>
>> #include "ipq9574.dtsi"
>> / {
>> @@ -29,6 +30,33 @@
>> status = "okay";
>> };
>> +&pcie1_phy {
>> + status = "okay";
>> +};
>> +
>> +&pcie1_x1 {
>> + perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>> +};
>> +
>> +&pcie2_phy {
>> + status = "okay";
>> +};
>> +
>> +&pcie2_x2 {
>> + perst-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>> +};
>> +
>> +&pcie3_phy {
>> + status = "okay";
>> +};
>> +
>> +&pcie3_x2 {
>> + perst-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
>> + status = "okay";
>> +};
>> +
>> &sdhc_1 {
>> pinctrl-0 = <&sdc_default_state>;
>> pinctrl-names = "default";
>> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
>> b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
>> index 062f80798ebb..a32dbdeb5bed 100644
>> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
>> @@ -6,8 +6,8 @@
>> * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights
>> reserved.
>> */
>> -#include <dt-bindings/interrupt-controller/arm-gic.h>
>> #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> #include <dt-bindings/reset/qcom,ipq9574-gcc.h>
>> / {
>> @@ -22,11 +22,41 @@
>> #clock-cells = <0>;
>> };
>> + pcie30_phy0_pipe_clk: pcie30_phy0_pipe_clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <250000000>;
>> + #clock-cells = <0>;
>> + };
>> +
>> + pcie30_phy1_pipe_clk: pcie30_phy1_pipe_clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <250000000>;
>> + #clock-cells = <0>;
>> + };
>> +
>> + pcie30_phy2_pipe_clk: pcie30_phy2_pipe_clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <250000000>;
>> + #clock-cells = <0>;
>> + };
>> +
>> + pcie30_phy3_pipe_clk: pcie30_phy3_pipe_clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <250000000>;
>> + #clock-cells = <0>;
>> + };
>> +
>> sleep_clk: sleep-clk {
>> compatible = "fixed-clock";
>> #clock-cells = <0>;
>> };
>> + usb3phy_0_cc_pipe_clk: usb3phy_0_cc_pipe_clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <125000000>;
>> + #clock-cells = <0>;
>> + };
>> +
>
> Why is the usb clock added here ?
As we have brought in the QMP PHY support, added the usb pipe clock too.
Will drop it as it is unrelated to the series.
>
>> xo_board_clk: xo-board-clk {
>> compatible = "fixed-clock";
>> #clock-cells = <0>;
>> @@ -121,6 +151,155 @@
>> #size-cells = <1>;
>> ranges = <0 0 0 0xffffffff>;
>> + pcie0_phy: phy@...00 {
>> + compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
>> + reg = <0x00084000 0x1bc>; /* Serdes PLL */
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> + clocks = <&gcc GCC_PCIE0_AUX_CLK>,
>> + <&gcc GCC_PCIE0_AHB_CLK>,
>> + <&gcc GCC_ANOC_PCIE0_1LANE_M_CLK>,
>> + <&gcc GCC_SNOC_PCIE0_1LANE_S_CLK>;
>> + clock-names = "aux", "cfg_ahb", "anoc_lane", "snoc_lane";
>> +
>> + assigned-clocks = <&gcc GCC_PCIE0_AUX_CLK>;
>> + assigned-clock-rates = <20000000>;
>> +
>> + resets = <&gcc GCC_PCIE0_PHY_BCR>,
>> + <&gcc GCC_PCIE0PHY_PHY_BCR>;
>> + reset-names = "phy", "common";
>> +
>> + status = "disabled";
>> +
>> + pcie0_lane: phy@...00 {
>> + reg = <0x00084200 0x16c>, /* Serdes Tx */
>> + <0x00084400 0x200>, /* Serdes Rx */
>> + <0x00084800 0x1f0>, /* PCS: Lane0, COM, PCIE */
>> + <0x00084c00 0xf4>; /* pcs_misc */
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_PCIE0_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_pcie0_pipe_clk_src";
>> + #clock-cells = <0>;
>> + };
>> + };
>> +
>> + pcie2_phy: phy@...00 {
>
> Can the phy/pcie nodes labelled in order ?
> Currently it 0/2/3/1 ?
Sure, okay
>
>> + compatible = "qcom,ipq9574-qmp-gen3x2-pcie-phy";
>> + reg = <0x0008c000 0x1bc>; /* Serdes PLL */
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_PCIE2_AUX_CLK>,
>> + <&gcc GCC_PCIE2_AHB_CLK>,
>> + <&gcc GCC_ANOC_PCIE2_2LANE_M_CLK>,
>> + <&gcc GCC_SNOC_PCIE2_2LANE_S_CLK>;
>> + clock-names = "aux", "cfg_ahb", "anoc_lane", "snoc_lane";
>> +
>> + assigned-clocks = <&gcc GCC_PCIE2_AUX_CLK>;
>> + assigned-clock-rates = <20000000>;
>> +
>> + resets = <&gcc GCC_PCIE2_PHY_BCR>,
>> + <&gcc GCC_PCIE2PHY_PHY_BCR>;
>> + reset-names = "phy", "common";
>> +
>> + status = "disabled";
>> +
>> + pcie2_lanes: phy@...00 {
>> + reg = <0x0008c200 0x16c>, /* Serdes Tx0 */
>> + <0x0008c400 0x200>, /* Serdes Rx0 */
>> + <0x0008d000 0x1f0>, /* PCS: Lane0, COM, PCIE */
>> + <0x0008c600 0x16c>, /* Serdes Tx1 */
>> + <0x0008c800 0x200>, /* Serdes Rx1 */
>> + <0x0008d400 0x0f8>; /* pcs_misc */
>> +
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_PCIE2_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_pcie2_pipe_clk_src";
>> + #clock-cells = <0>;
>> + };
>> + };
>> +
>> + pcie3_phy: phy@...00 {
>> + compatible = "qcom,ipq9574-qmp-gen3x2-pcie-phy";
>> + reg = <0x000f4000 0x1bc>; /* Serdes PLL */
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_PCIE3_AUX_CLK>,
>> + <&gcc GCC_PCIE3_AHB_CLK>,
>> + <&gcc GCC_ANOC_PCIE3_2LANE_M_CLK>,
>> + <&gcc GCC_SNOC_PCIE3_2LANE_S_CLK>;
>> + clock-names = "aux", "cfg_ahb", "anoc_lane", "snoc_lane";
>> +
>> + assigned-clocks = <&gcc GCC_PCIE3_AUX_CLK>;
>> + assigned-clock-rates = <20000000>;
>> +
>> + resets = <&gcc GCC_PCIE3_PHY_BCR>,
>> + <&gcc GCC_PCIE3PHY_PHY_BCR>;
>> + reset-names = "phy", "common";
>> +
>> + status = "disabled";
>> +
>> + pcie3_lanes: phy@...00 {
>> + reg = <0x000f4200 0x16c>, /* Serdes Tx0 */
>> + <0x000f4400 0x200>, /* Serdes Rx0 */
>> + <0x000f5000 0x1f0>, /* PCS: Lane0, COM, PCIE */
>> + <0x000f4600 0x16c>, /* Serdes Tx1 */
>> + <0x000f4800 0x200>, /* Serdes Rx1 */
>> + <0x000f5400 0x0f8>; /* pcs_misc */
>> +
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_PCIE3_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_pcie3_pipe_clk_src";
>> + #clock-cells = <0>;
>> + };
>> + };
>> +
>> + pcie1_phy: phy@...00 {
>> + compatible = "qcom,ipq9574-qmp-gen3x1-pcie-phy";
>> + reg = <0x000fc000 0x1bc>; /* Serdes PLL */
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> + ranges;
>> +
>> + clocks = <&gcc GCC_PCIE1_AUX_CLK>,
>> + <&gcc GCC_PCIE1_AHB_CLK>,
>> + <&gcc GCC_ANOC_PCIE1_1LANE_M_CLK>,
>> + <&gcc GCC_SNOC_PCIE1_1LANE_S_CLK>;
>> + clock-names = "aux", "cfg_ahb", "anoc_lane", "snoc_lane";
>> +
>> + assigned-clocks = <&gcc GCC_PCIE1_AUX_CLK>;
>> + assigned-clock-rates = <20000000>;
>> +
>> + resets = <&gcc GCC_PCIE1_PHY_BCR>,
>> + <&gcc GCC_PCIE1PHY_PHY_BCR>;
>> + reset-names = "phy", "common";
>> +
>> + status = "disabled";
>> +
>> + pcie1_lane: phy@...00 {
>> + reg = <0x000fc200 0x16c>, /* Serdes Tx */
>> + <0x000fc400 0x200>, /* Serdes Rx */
>> + <0x000fc800 0x1f0>, /* PCS: Lane0, COM, PCIE */
>> + <0x000fcc00 0xf4>; /* pcs_misc */
>> + #phy-cells = <0>;
>> +
>> + clocks = <&gcc GCC_PCIE1_PIPE_CLK>;
>> + clock-names = "pipe0";
>> + clock-output-names = "gcc_pcie1_pipe_clk_src";
>> + #clock-cells = <0>;
>> + };
>> + };
>> +
>> tlmm: pinctrl@...0000 {
>> compatible = "qcom,ipq9574-tlmm";
>> reg = <0x01000000 0x300000>;
>> @@ -145,11 +324,11 @@
>> clocks = <&xo_board_clk>,
>> <&sleep_clk>,
>> <&bias_pll_ubi_nc_clk>,
>> - <0>,
>> - <0>,
>> - <0>,
>> - <0>,
>> - <0>;
>> + <&pcie30_phy0_pipe_clk>,
>> + <&pcie30_phy1_pipe_clk>,
>> + <&pcie30_phy2_pipe_clk>,
>> + <&pcie30_phy3_pipe_clk>,
>> + <&usb3phy_0_cc_pipe_clk>;
>
> Same , why usb3 clk is added here ?
Sure, will drop it
>
> Regards,
> Sricharan
>
Best Regards,
Devi Priya
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