Re: [PATCH 7/7] arm64: dts: qcom: ipq9574: Add PCIe PHYs and controller nodes
From: Sricharan Ramabadhran
Date: Fri Feb 17 2023 - 03:36:06 EST
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@xxxxxxxxxxx>
Signed-off-by: Anusha Rao <quic_anusha@xxxxxxxxxxx>
Signed-off-by: Devi Priya <quic_devipriy@xxxxxxxxxxx>
---
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 ?
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@84000 {
+ 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@84200 {
+ 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@8c000 {
Can the phy/pcie nodes labelled in order ?
Currently it 0/2/3/1 ?
+ 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@8c200 {
+ 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@f4000 {
+ 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@f4200 {
+ 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@fc000 {
+ 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@fc200 {
+ 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@1000000 {
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 ?
Regards,
Sricharan