mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-12 07:37:31 -04:00
Merge "ARM: dts: msm: add wlan converged node for SA81x5"
This commit is contained in:
commit
9cb4ec4eef
3 changed files with 609 additions and 0 deletions
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@ -17,6 +17,7 @@ Required properties:
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"qcom,cnss-qca6390" for QCA6390 device
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"qcom,cnss-qca6490" for QCA6490 device
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"qcom,cnss-wcn7850" for WCN7850 device
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"qcom,cnss-qca-converged" for converged QCA devices
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- wlan-en-gpio: WLAN_EN GPIO signal specified by the chip specifications
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- vdd-wlan-supply: phandle to the regulator device tree node
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- pinctrl-names: Names corresponding to the numbered pinctrl states
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@ -98,6 +99,18 @@ Optional properties:
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without sub-nodes.
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- qcom,converged-dt: Boolean property to decide whether it supports multiple
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WLAN devices using the same DT node with sub-nodes.
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- qcom,bus-type: U32 property to specify the bus type, is required when
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'qcom,converged-dt' being present.
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- wlan_vregs: String array to decide which vregs are required, is required
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when 'qcom,converged-dt' being present.
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List of chip specific sub nodes:
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- chip_cfg@X: represent chip specific configurations
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Each sub node has the following required properties:
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- wlan_vregs: String array to decide which vregs are required, property
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being present but no values means no additional vregs.
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- supported-ids: U32 array to decide which device ids are supported by
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sub node.
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Example:
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@ -117,3 +130,27 @@ Example:
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qcom,mhi = <&mhi_wlan>;
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qcom,cap-tsf-gpio = <&tlmm 126 1>;
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};
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qcom,cnss-qca-converged {
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compatible = "qcom,cnss-qca-converged";
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qcom,converged-dt;
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qcom,bus-type=<0>;
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vdd-wlan-ctrl1-supply = <&vreg_conn_pa>;
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vdd-wlan-ctrl2-supply = <&vreg_conn_1p8>;
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vdd-wlan-supply = <&vreg_wlan>;
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wlan_vregs = "vdd-wlan-ctrl1", "vdd-wlan-ctrl2";
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qcom,vdd-wlan-ctrl1-info = <0 0 0 0>;
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qcom,vdd-wlan-ctrl2-info = <0 0 0 0>;
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wlan-en-gpio = <&tlmm 169 0>;
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pinctrl-names = "wlan_en_active", "wlan_en_sleep";
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pinctrl-0 = <&cnss_wlan_en_active>;
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pinctrl-1 = <&cnss_wlan_en_sleep>;
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qcom,wlan-rc-num = <0>;
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chip_cfg@1 {
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supported-ids = <0x003e>;
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wlan_vregs = "vdd-wlan";
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qcom,vdd-wlan-info = <0 0 0 10>;
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};
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};
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@ -1,5 +1,11 @@
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&soc {
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/* Rome 3.3V supply */
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vreg_wlan: vreg_wlan {
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compatible = "qcom,stub-regulator";
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regulator-name = "vreg_wlan";
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};
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/* PWR_CTR2_VDD_1P8 supply */
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vreg_conn_1p8: vreg_conn_1p8 {
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compatible = "regulator-fixed";
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@ -44,9 +50,290 @@
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qcom,bt-vdd-rfa3-config = <1900000 1900000 450000 0>;
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};
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cnss_pcie: qcom,cnss-qca-converged {
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compatible = "qcom,cnss-qca-converged";
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qcom,converged-dt;
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qcom,wlan-rc-num = <0>;
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qcom,bus-type=<0>;
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qcom,notify-modem-status;
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#address-cells=<1>;
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#size-cells=<1>;
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ranges = <0xb0000000 0xb0000000 0x10000>;
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vdd-wlan-ctrl1-supply = <&vreg_conn_pa>;
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vdd-wlan-ctrl2-supply = <&vreg_conn_1p8>;
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vdd-wlan-supply = <&vreg_wlan>;
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vdd-wlan-aon-supply = <&pm8150_1_s6>;
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vdd-wlan-rfa1-supply = <&pm8150_2_s4>;
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vdd-wlan-rfa2-supply = <&pm8150_2_s5>;
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vdd-wlan-rfa3-supply = <&pm8150_2_l15>;
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wlan_vregs = "vdd-wlan-ctrl1", "vdd-wlan-ctrl2";
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qcom,vdd-wlan-ctrl1-config = <0 0 0 0 0>;
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qcom,vdd-wlan-ctrl2-config = <0 0 0 0 0>;
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wlan-en-gpio = <&tlmm 169 0>;
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pinctrl-names = "wlan_en_active", "wlan_en_sleep";
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pinctrl-0 = <&cnss_wlan_en_active>;
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pinctrl-1 = <&cnss_wlan_en_sleep>;
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chip_cfg@0 {
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reg = <0xb0000000 0x10000>;
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reg-names = "smmu_iova_ipa";
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supported-ids = <0x003e>;
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wlan_vregs = "vdd-wlan";
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qcom,vdd-wlan-info = <0 0 0 10 1>;
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qcom,wlan-ramdump-dynamic = <0x200000>;
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};
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chip_cfg@1 {
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reg = <0xb0000000 0x10000>;
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reg-names = "smmu_iova_ipa";
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supported-ids = <0x1101>;
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wlan_vregs = "vdd-wlan-aon", "vdd-wlan-rfa1",
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"vdd-wlan-rfa2", "vdd-wlan-rfa3";
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qcom,vdd-wlan-aon-config = <1055000 1055000 0 0 1>;
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qcom,vdd-wlan-rfa1-config = <1370000 1370000 0 0 1>;
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qcom,vdd-wlan-rfa2-config = <2040000 2040000 0 0 1>;
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qcom,vdd-wlan-rfa3-config = <1900000 1900000 450000 0 1>;
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qcom,wlan-ramdump-dynamic = <0x400000>;
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mhi,max-channels = <30>;
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mhi,timeout = <10000>;
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mhi,buffer-len = <0x8000>;
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mhi,m2-no-db-access;
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mhi_channels {
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#address-cells = <1>;
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#size-cells = <0>;
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mhi_chan@0 {
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reg = <0>;
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label = "LOOPBACK";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@1 {
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reg = <1>;
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label = "LOOPBACK";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@4 {
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reg = <4>;
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label = "DIAG";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@5 {
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reg = <5>;
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label = "DIAG";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@20 {
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reg = <20>;
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label = "IPCR";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <1>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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mhi,auto-start;
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};
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mhi_chan@21 {
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reg = <21>;
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label = "IPCR";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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mhi,auto-queue;
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mhi,auto-start;
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};
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};
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mhi_events {
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mhi_event@0 {
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mhi,num-elements = <32>;
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mhi,intmod = <1>;
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mhi,msi = <1>;
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mhi,priority = <1>;
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mhi,brstmode = <2>;
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mhi,data-type = <1>;
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};
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mhi_event@1 {
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mhi,num-elements = <256>;
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mhi,intmod = <1>;
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mhi,msi = <2>;
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mhi,priority = <1>;
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mhi,brstmode = <2>;
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};
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};
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};
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chip_cfg@2 {
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reg = <0xb0000000 0x10000>;
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reg-names = "smmu_iova_ipa";
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supported-ids = <0x1102>;
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wlan_vregs = "vdd-wlan-aon", "vdd-wlan-rfa1",
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"vdd-wlan-rfa2", "vdd-wlan-rfa3";
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qcom,vdd-wlan-aon-config = <1055000 1055000 0 0 1>;
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qcom,vdd-wlan-rfa1-config = <1370000 1370000 0 0 1>;
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qcom,vdd-wlan-rfa2-config = <2040000 2040000 0 0 1>;
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qcom,vdd-wlan-rfa3-config = <1900000 1900000 450000 0 1>;
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qcom,wlan-ramdump-dynamic = <0x400000>;
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mhi,max-channels = <30>;
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mhi,timeout = <10000>;
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mhi,ee = <0x3>, <0x4>;
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mhi,ee-names = "SBL", "RDDM";
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mhi,bhie-offset = <0x0324>;
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mhi,m2-no-db-access;
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mhi_channels {
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#address-cells = <1>;
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#size-cells = <0>;
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mhi_chan@0 {
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reg = <0>;
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label = "LOOPBACK";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@1 {
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reg = <1>;
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label = "LOOPBACK";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@4 {
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reg = <4>;
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label = "DIAG";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@5 {
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reg = <5>;
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label = "DIAG";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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};
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mhi_chan@16 {
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reg = <16>;
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label = "IPCR";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <1>;
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mhi,data-type = <1>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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mhi,auto-start;
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};
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mhi_chan@17 {
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reg = <17>;
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label = "IPCR";
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mhi,num-elements = <32>;
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mhi,event-ring = <1>;
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mhi,chan-dir = <2>;
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mhi,data-type = <0>;
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mhi,doorbell-mode = <2>;
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mhi,ee = <0x14>;
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mhi,auto-queue;
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mhi,auto-start;
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};
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};
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mhi_events {
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mhi_event@0 {
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mhi,num-elements = <32>;
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mhi,intmod = <1>;
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mhi,msi = <1>;
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mhi,priority = <1>;
|
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mhi,brstmode = <2>;
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mhi,data-type = <1>;
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};
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mhi_event@1 {
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mhi,num-elements = <256>;
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mhi,intmod = <1>;
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mhi,msi = <2>;
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mhi,priority = <1>;
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mhi,brstmode = <2>;
|
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};
|
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};
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};
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};
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||||
};
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&qupv3_se13_4uart {
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status = "ok"
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||||
};
|
||||
|
||||
&pcie_rc0 {
|
||||
cnss_pci: cnss_pci {
|
||||
reg = <0 0 0 0 0>;
|
||||
qcom,iommu-group = <&cnss_pci_iommu_group>;
|
||||
|
||||
#address-cells = <1>;
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||||
#size-cells = <1>;
|
||||
|
||||
cnss_pci_iommu_group: cnss_pci_iommu_group {
|
||||
qcom,iommu-dma-addr-pool = <0xa0000000 0x10000000>;
|
||||
qcom,iommu-dma = "fastmap";
|
||||
qcom,iommu-pagetable = "coherent";
|
||||
qcom,iommu-faults = "stall-disable", "no-CFRE",
|
||||
"non-fatal";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -42,9 +42,294 @@
|
|||
qcom,bt-vdd-rfa2-config = <1900000 1900000 450000 0>;
|
||||
};
|
||||
|
||||
/* Rome 3.3V supply */
|
||||
vreg_wlan: vreg_wlan {
|
||||
compatible = "qcom,stub-regulator";
|
||||
regulator-name = "vreg_wlan";
|
||||
};
|
||||
|
||||
cnss_pcie: qcom,cnss-qca-converged {
|
||||
compatible = "qcom,cnss-qca-converged";
|
||||
|
||||
qcom,converged-dt;
|
||||
qcom,wlan-rc-num = <0>;
|
||||
qcom,bus-type=<0>;
|
||||
qcom,notify-modem-status;
|
||||
|
||||
#address-cells=<1>;
|
||||
#size-cells=<1>;
|
||||
ranges = <0xb0000000 0xb0000000 0x10000>;
|
||||
|
||||
vdd-wlan-ctrl1-supply = <&vreg_conn_pa>;
|
||||
vdd-wlan-ctrl2-supply = <&vreg_conn_1p8>;
|
||||
vdd-wlan-supply = <&vreg_wlan>;
|
||||
vdd-wlan-aon-supply = <&pm8195_1_s5>;
|
||||
vdd-wlan-rfa1-supply = <&pm8195_1_s2>;
|
||||
vdd-wlan-rfa2-supply = <&pm8195_2_s5>;
|
||||
vdd-wlan-rfa3-supply = <&pm8195_2_l7>;
|
||||
|
||||
wlan_vregs = "vdd-wlan-ctrl1", "vdd-wlan-ctrl2";
|
||||
qcom,vdd-wlan-ctrl1-config = <0 0 0 0 0>;
|
||||
qcom,vdd-wlan-ctrl2-config = <0 0 0 0 0>;
|
||||
wlan-en-gpio = <&tlmm 169 0>;
|
||||
pinctrl-names = "wlan_en_active", "wlan_en_sleep";
|
||||
pinctrl-0 = <&cnss_wlan_en_active>;
|
||||
pinctrl-1 = <&cnss_wlan_en_sleep>;
|
||||
|
||||
chip_cfg@0 {
|
||||
reg = <0xb0000000 0x10000>;
|
||||
reg-names = "smmu_iova_ipa";
|
||||
|
||||
supported-ids = <0x003e>;
|
||||
wlan_vregs = "vdd-wlan";
|
||||
qcom,vdd-wlan-info = <0 0 0 10 1>;
|
||||
|
||||
qcom,wlan-ramdump-dynamic = <0x200000>;
|
||||
};
|
||||
|
||||
chip_cfg@1 {
|
||||
reg = <0xb0000000 0x10000>;
|
||||
reg-names = "smmu_iova_ipa";
|
||||
|
||||
supported-ids = <0x1101>;
|
||||
wlan_vregs = "vdd-wlan-aon", "vdd-wlan-rfa1",
|
||||
"vdd-wlan-rfa2", "vdd-wlan-rfa3";
|
||||
qcom,vdd-wlan-aon-config = <1000000 1000000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa1-config = <1370000 1370000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa2-config = <2040000 2040000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa3-config = <1900000 1900000 450000 0 1>;
|
||||
qcom,wlan-ramdump-dynamic = <0x400000>;
|
||||
mhi,max-channels = <30>;
|
||||
mhi,timeout = <10000>;
|
||||
mhi,buffer-len = <0x8000>;
|
||||
mhi,m2-no-db-access;
|
||||
|
||||
mhi_channels {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
mhi_chan@0 {
|
||||
reg = <0>;
|
||||
label = "LOOPBACK";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@1 {
|
||||
reg = <1>;
|
||||
label = "LOOPBACK";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@4 {
|
||||
reg = <4>;
|
||||
label = "DIAG";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@5 {
|
||||
reg = <5>;
|
||||
label = "DIAG";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@20 {
|
||||
reg = <20>;
|
||||
label = "IPCR";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <1>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
mhi,auto-start;
|
||||
};
|
||||
|
||||
mhi_chan@21 {
|
||||
reg = <21>;
|
||||
label = "IPCR";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
mhi,auto-queue;
|
||||
mhi,auto-start;
|
||||
};
|
||||
};
|
||||
|
||||
mhi_events {
|
||||
mhi_event@0 {
|
||||
mhi,num-elements = <32>;
|
||||
mhi,intmod = <1>;
|
||||
mhi,msi = <1>;
|
||||
mhi,priority = <1>;
|
||||
mhi,brstmode = <2>;
|
||||
mhi,data-type = <1>;
|
||||
};
|
||||
|
||||
mhi_event@1 {
|
||||
mhi,num-elements = <256>;
|
||||
mhi,intmod = <1>;
|
||||
mhi,msi = <2>;
|
||||
mhi,priority = <1>;
|
||||
mhi,brstmode = <2>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
chip_cfg@2 {
|
||||
reg = <0xb0000000 0x10000>;
|
||||
reg-names = "smmu_iova_ipa";
|
||||
|
||||
supported-ids = <0x1102>;
|
||||
wlan_vregs = "vdd-wlan-aon", "vdd-wlan-rfa1",
|
||||
"vdd-wlan-rfa2", "vdd-wlan-rfa3";
|
||||
qcom,vdd-wlan-aon-config = <1000000 1000000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa1-config = <1370000 1370000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa2-config = <2040000 2040000 0 0 1>;
|
||||
qcom,vdd-wlan-rfa3-config = <1900000 1900000 450000 0 1>;
|
||||
|
||||
qcom,wlan-ramdump-dynamic = <0x400000>;
|
||||
mhi,max-channels = <30>;
|
||||
mhi,timeout = <10000>;
|
||||
mhi,ee = <0x3>, <0x4>;
|
||||
mhi,ee-names = "SBL", "RDDM";
|
||||
mhi,bhie-offset = <0x0324>;
|
||||
mhi,m2-no-db-access;
|
||||
|
||||
mhi_channels {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
mhi_chan@0 {
|
||||
reg = <0>;
|
||||
label = "LOOPBACK";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@1 {
|
||||
reg = <1>;
|
||||
label = "LOOPBACK";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@4 {
|
||||
reg = <4>;
|
||||
label = "DIAG";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@5 {
|
||||
reg = <5>;
|
||||
label = "DIAG";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
};
|
||||
|
||||
mhi_chan@16 {
|
||||
reg = <16>;
|
||||
label = "IPCR";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <1>;
|
||||
mhi,data-type = <1>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
mhi,auto-start;
|
||||
};
|
||||
|
||||
mhi_chan@17 {
|
||||
reg = <17>;
|
||||
label = "IPCR";
|
||||
mhi,num-elements = <32>;
|
||||
mhi,event-ring = <1>;
|
||||
mhi,chan-dir = <2>;
|
||||
mhi,data-type = <0>;
|
||||
mhi,doorbell-mode = <2>;
|
||||
mhi,ee = <0x14>;
|
||||
mhi,auto-queue;
|
||||
mhi,auto-start;
|
||||
};
|
||||
};
|
||||
|
||||
mhi_events {
|
||||
mhi_event@0 {
|
||||
mhi,num-elements = <32>;
|
||||
mhi,intmod = <1>;
|
||||
mhi,msi = <1>;
|
||||
mhi,priority = <1>;
|
||||
mhi,brstmode = <2>;
|
||||
mhi,data-type = <1>;
|
||||
};
|
||||
|
||||
mhi_event@1 {
|
||||
mhi,num-elements = <256>;
|
||||
mhi,intmod = <1>;
|
||||
mhi,msi = <2>;
|
||||
mhi,priority = <1>;
|
||||
mhi,brstmode = <2>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
&qupv3_se13_4uart {
|
||||
status = "ok"
|
||||
};
|
||||
|
||||
&pcie_rc0 {
|
||||
cnss_pci: cnss_pci {
|
||||
reg = <0 0 0 0 0>;
|
||||
qcom,iommu-group = <&cnss_pci_iommu_group>;
|
||||
|
||||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
|
||||
cnss_pci_iommu_group: cnss_pci_iommu_group {
|
||||
qcom,iommu-dma-addr-pool = <0xa0000000 0x10000000>;
|
||||
qcom,iommu-dma = "fastmap";
|
||||
qcom,iommu-pagetable = "coherent";
|
||||
qcom,iommu-faults = "stall-disable", "no-CFRE",
|
||||
"non-fatal";
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue