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-To: <[email protected]>, <[email protected]>, <[email protected]>
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-Subject: [PATCH v2 1/4] dt-bindings: PCI: Mediatek: Update PCIe binding
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-Date: Thu, 28 May 2020 14:16:45 +0800
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-Cc: [email protected], [email protected],
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- [email protected], "chuanjia.liu" <[email protected]>,
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- [email protected], [email protected],
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- linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org
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-
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-From: "chuanjia.liu" <[email protected]>
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-
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-There are two independent PCIe controllers in MT2712/MT7622 platform,
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-and each of them should contain an independent MSI domain.
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-
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-In current architecture, MSI domain will be inherited from the root
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-bridge, and all of the devices will share the same MSI domain.
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-Hence that, the PCIe devices will not work properly if the irq number
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-which required is more than 32.
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-
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-Split the PCIe node for MT2712/MT7622 platform to fix MSI issue and
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-comply with the hardware design.
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-
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-Signed-off-by: chuanjia.liu <[email protected]>
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----
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- .../bindings/pci/mediatek-pcie-cfg.yaml | 38 +++++
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- .../devicetree/bindings/pci/mediatek-pcie.txt | 144 +++++++++++-------
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- 2 files changed, 129 insertions(+), 53 deletions(-)
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- create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
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-
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---- /dev/null
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-+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
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-@@ -0,0 +1,38 @@
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-+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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-+%YAML 1.2
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-+---
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-+$id: http://devicetree.org/schemas/pci/mediatek-pcie-cfg.yaml#
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-+$schema: http://devicetree.org/meta-schemas/core.yaml#
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-+
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-+title: Mediatek PCIECFG controller
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-+
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-+maintainers:
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-+ - Chuanjia Liu <[email protected]>
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-+ - Jianjun Wang <[email protected]>
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-+
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-+description: |
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-+ The MediaTek PCIECFG controller controls some feature about
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-+ LTSSM, ASPM and so on.
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-+
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-+properties:
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-+ compatible:
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-+ items:
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-+ - enum:
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-+ - mediatek,mt7622-pciecfg
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-+ - mediatek,mt7629-pciecfg
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-+ - const: syscon
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-+
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-+ reg:
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-+ maxItems: 1
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-+
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-+required:
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-+ - compatible
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-+ - reg
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-+
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-+examples:
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-+ - |
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-+ pciecfg: pciecfg@1a140000 {
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-+ compatible = "mediatek,mt7622-pciecfg", "syscon";
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-+ reg = <0 0x1a140000 0 0x1000>;
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-+ };
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-+...
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---- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
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-+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
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-@@ -8,7 +8,7 @@ Required properties:
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- "mediatek,mt7623-pcie"
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- "mediatek,mt7629-pcie"
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- - device_type: Must be "pci"
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--- reg: Base addresses and lengths of the PCIe subsys and root ports.
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-+- reg: Base addresses and lengths of the root ports.
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- - reg-names: Names of the above areas to use during resource lookup.
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- - #address-cells: Address representation for root ports (must be 3)
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- - #size-cells: Size representation for root ports (must be 2)
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-@@ -19,10 +19,10 @@ Required properties:
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- - sys_ckN :transaction layer and data link layer clock
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- Required entries for MT2701/MT7623:
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- - free_ck :for reference clock of PCIe subsys
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-- Required entries for MT2712/MT7622:
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-+ Required entries for MT2712/MT7622/MT7629:
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- - ahb_ckN :AHB slave interface operating clock for CSR access and RC
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- initiated MMIO access
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-- Required entries for MT7622:
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-+ Required entries for MT7622/MT7629:
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- - axi_ckN :application layer MMIO channel operating clock
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- - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when
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- pcie_mac_ck/pcie_pipe_ck is turned off
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-@@ -47,10 +47,13 @@ Required properties for MT7623/MT2701:
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- - reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the
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- number of root ports.
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-
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--Required properties for MT2712/MT7622:
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-+Required properties for MT2712/MT7622/MT7629:
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- -interrupts: A list of interrupt outputs of the controller, must have one
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- entry for each PCIe port
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-
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-+Required properties for MT7622/MT7629:
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-+- mediatek,pcie-subsys: Should be a phandle of the pciecfg node.
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-+
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- In addition, the device tree node must have sub-nodes describing each
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- PCIe port interface, having the following mandatory properties:
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-
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-@@ -143,56 +146,73 @@ Examples for MT7623:
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-
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- Examples for MT2712:
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-
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-- pcie: pcie@11700000 {
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-+ pcie1: pcie@112ff000 {
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- compatible = "mediatek,mt2712-pcie";
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- device_type = "pci";
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-- reg = <0 0x11700000 0 0x1000>,
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-- <0 0x112ff000 0 0x1000>;
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-- reg-names = "port0", "port1";
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-+ reg = <0 0x112ff000 0 0x1000>;
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-+ reg-names = "port1";
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- #address-cells = <3>;
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- #size-cells = <2>;
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-- interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
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-- <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
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-- clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
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-- <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
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-- <&pericfg CLK_PERI_PCIE0>,
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-+ interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
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|
|
|
|
-+ interrupt-names = "pcie_irq";
|
|
|
|
|
-+ clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
|
|
|
|
|
- <&pericfg CLK_PERI_PCIE1>;
|
|
|
|
|
-- clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
|
|
|
|
|
-- phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
|
|
|
|
|
-- phy-names = "pcie-phy0", "pcie-phy1";
|
|
|
|
|
-+ clock-names = "sys_ck1", "ahb_ck1";
|
|
|
|
|
-+ phys = <&u3port1 PHY_TYPE_PCIE>;
|
|
|
|
|
-+ phy-names = "pcie-phy1";
|
|
|
|
|
- bus-range = <0x00 0xff>;
|
|
|
|
|
-- ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
|
|
|
|
|
-+ ranges = <0x82000000 0 0x11400000 0x0 0x11400000 0 0x300000>;
|
|
|
|
|
-+ status = "disabled";
|
|
|
|
|
-
|
|
|
|
|
-- pcie0: pcie@0,0 {
|
|
|
|
|
-- reg = <0x0000 0 0 0 0>;
|
|
|
|
|
-+ slot1: pcie@1,0 {
|
|
|
|
|
-+ reg = <0x0800 0 0 0 0>;
|
|
|
|
|
- #address-cells = <3>;
|
|
|
|
|
- #size-cells = <2>;
|
|
|
|
|
- #interrupt-cells = <1>;
|
|
|
|
|
- ranges;
|
|
|
|
|
- interrupt-map-mask = <0 0 0 7>;
|
|
|
|
|
-- interrupt-map = <0 0 0 1 &pcie_intc0 0>,
|
|
|
|
|
-- <0 0 0 2 &pcie_intc0 1>,
|
|
|
|
|
-- <0 0 0 3 &pcie_intc0 2>,
|
|
|
|
|
-- <0 0 0 4 &pcie_intc0 3>;
|
|
|
|
|
-- pcie_intc0: interrupt-controller {
|
|
|
|
|
-+ interrupt-map = <0 0 0 1 &pcie_intc1 0>,
|
|
|
|
|
-+ <0 0 0 2 &pcie_intc1 1>,
|
|
|
|
|
-+ <0 0 0 3 &pcie_intc1 2>,
|
|
|
|
|
-+ <0 0 0 4 &pcie_intc1 3>;
|
|
|
|
|
-+ pcie_intc1: interrupt-controller {
|
|
|
|
|
- interrupt-controller;
|
|
|
|
|
- #address-cells = <0>;
|
|
|
|
|
- #interrupt-cells = <1>;
|
|
|
|
|
- };
|
|
|
|
|
- };
|
|
|
|
|
-+ };
|
|
|
|
|
-
|
|
|
|
|
-- pcie1: pcie@1,0 {
|
|
|
|
|
-- reg = <0x0800 0 0 0 0>;
|
|
|
|
|
-+ pcie0: pcie@11700000 {
|
|
|
|
|
-+ compatible = "mediatek,mt2712-pcie";
|
|
|
|
|
-+ device_type = "pci";
|
|
|
|
|
-+ reg = <0 0x11700000 0 0x1000>;
|
|
|
|
|
-+ reg-names = "port0";
|
|
|
|
|
-+ #address-cells = <3>;
|
|
|
|
|
-+ #size-cells = <2>;
|
|
|
|
|
-+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
|
|
|
|
|
-+ interrupt-names = "pcie_irq";
|
|
|
|
|
-+ clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
|
|
|
|
|
-+ <&pericfg CLK_PERI_PCIE0>;
|
|
|
|
|
-+ clock-names = "sys_ck0", "ahb_ck0";
|
|
|
|
|
-+ phys = <&u3port0 PHY_TYPE_PCIE>;
|
|
|
|
|
-+ phy-names = "pcie-phy0";
|
|
|
|
|
-+ bus-range = <0x00 0xff>;
|
|
|
|
|
-+ ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
|
|
|
|
|
-+ status = "disabled";
|
|
|
|
|
-+
|
|
|
|
|
-+ slot0: pcie@0,0 {
|
|
|
|
|
-+ reg = <0x0000 0 0 0 0>;
|
|
|
|
|
- #address-cells = <3>;
|
|
|
|
|
- #size-cells = <2>;
|
|
|
|
|
- #interrupt-cells = <1>;
|
|
|
|
|
- ranges;
|
|
|
|
|
- interrupt-map-mask = <0 0 0 7>;
|
|
|
|
|
-- interrupt-map = <0 0 0 1 &pcie_intc1 0>,
|
|
|
|
|
-- <0 0 0 2 &pcie_intc1 1>,
|
|
|
|
|
-- <0 0 0 3 &pcie_intc1 2>,
|
|
|
|
|
-- <0 0 0 4 &pcie_intc1 3>;
|
|
|
|
|
-- pcie_intc1: interrupt-controller {
|
|
|
|
|
-+ interrupt-map = <0 0 0 1 &pcie_intc0 0>,
|
|
|
|
|
-+ <0 0 0 2 &pcie_intc0 1>,
|
|
|
|
|
-+ <0 0 0 3 &pcie_intc0 2>,
|
|
|
|
|
-+ <0 0 0 4 &pcie_intc0 3>;
|
|
|
|
|
-+ pcie_intc0: interrupt-controller {
|
|
|
|
|
- interrupt-controller;
|
|
|
|
|
- #address-cells = <0>;
|
|
|
|
|
- #interrupt-cells = <1>;
|
|
|
|
|
-@@ -202,39 +222,31 @@ Examples for MT2712:
|
|
|
|
|
-
|
|
|
|
|
- Examples for MT7622:
|
|
|
|
|
-
|
|
|
|
|
-- pcie: pcie@1a140000 {
|
|
|
|
|
-+ pcie0: pcie@1a143000 {
|
|
|
|
|
- compatible = "mediatek,mt7622-pcie";
|
|
|
|
|
- device_type = "pci";
|
|
|
|
|
-- reg = <0 0x1a140000 0 0x1000>,
|
|
|
|
|
-- <0 0x1a143000 0 0x1000>,
|
|
|
|
|
-- <0 0x1a145000 0 0x1000>;
|
|
|
|
|
-- reg-names = "subsys", "port0", "port1";
|
|
|
|
|
-+ reg = <0 0x1a143000 0 0x1000>;
|
|
|
|
|
-+ reg-names = "port0";
|
|
|
|
|
-+ mediatek,pcie-cfg = <&pciecfg>;
|
|
|
|
|
- #address-cells = <3>;
|
|
|
|
|
- #size-cells = <2>;
|
|
|
|
|
-- interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
|
|
|
|
|
-- <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
|
|
|
|
|
-+ interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
|
|
|
|
|
-+ interrupt-names = "pcie_irq";
|
|
|
|
|
- clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_MAC_EN>,
|
|
|
|
|
- <&pciesys CLK_PCIE_P0_AHB_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_AHB_EN>,
|
|
|
|
|
- <&pciesys CLK_PCIE_P0_AUX_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_AUX_EN>,
|
|
|
|
|
- <&pciesys CLK_PCIE_P0_AXI_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_AXI_EN>,
|
|
|
|
|
- <&pciesys CLK_PCIE_P0_OBFF_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_OBFF_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P0_PIPE_EN>,
|
|
|
|
|
-- <&pciesys CLK_PCIE_P1_PIPE_EN>;
|
|
|
|
|
-- clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
|
|
|
|
|
-- "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
|
|
|
|
|
-- "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
|
|
|
|
|
-- phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
|
|
|
|
|
-- phy-names = "pcie-phy0", "pcie-phy1";
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P0_PIPE_EN>;
|
|
|
|
|
-+ clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
|
|
|
|
|
-+ "axi_ck0", "obff_ck0", "pipe_ck0";
|
|
|
|
|
-+
|
|
|
|
|
- power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
|
|
|
|
|
- bus-range = <0x00 0xff>;
|
|
|
|
|
-- ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
|
|
|
|
|
-+ ranges = <0x82000000 0 0x20000000 0 0x20000000 0 0x8000000>;
|
|
|
|
|
-+ status = "disabled";
|
|
|
|
|
-
|
|
|
|
|
-- pcie0: pcie@0,0 {
|
|
|
|
|
-+ slot0: pcie@0,0 {
|
|
|
|
|
- reg = <0x0000 0 0 0 0>;
|
|
|
|
|
- #address-cells = <3>;
|
|
|
|
|
- #size-cells = <2>;
|
|
|
|
|
-@@ -251,8 +263,34 @@ Examples for MT7622:
|
|
|
|
|
- #interrupt-cells = <1>;
|
|
|
|
|
- };
|
|
|
|
|
- };
|
|
|
|
|
-+ };
|
|
|
|
|
-+
|
|
|
|
|
-+ pcie1: pcie@1a145000 {
|
|
|
|
|
-+ compatible = "mediatek,mt7622-pcie";
|
|
|
|
|
-+ device_type = "pci";
|
|
|
|
|
-+ reg = <0 0x1a145000 0 0x1000>;
|
|
|
|
|
-+ reg-names = "port1";
|
|
|
|
|
-+ mediatek,pcie-cfg = <&pciecfg>;
|
|
|
|
|
-+ #address-cells = <3>;
|
|
|
|
|
-+ #size-cells = <2>;
|
|
|
|
|
-+ interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
|
|
|
|
|
-+ interrupt-names = "pcie_irq";
|
|
|
|
|
-+ clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
|
|
|
|
|
-+ /* designer has connect RC1 with p0_ahb clock */
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P0_AHB_EN>,
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P1_AUX_EN>,
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P1_AXI_EN>,
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P1_OBFF_EN>,
|
|
|
|
|
-+ <&pciesys CLK_PCIE_P1_PIPE_EN>;
|
|
|
|
|
-+ clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
|
|
|
|
|
-+ "axi_ck1", "obff_ck1", "pipe_ck1";
|
|
|
|
|
-+
|
|
|
|
|
-+ power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
|
|
|
|
|
-+ bus-range = <0x00 0xff>;
|
|
|
|
|
-+ ranges = <0x82000000 0 0x28000000 0 0x28000000 0 0x8000000>;
|
|
|
|
|
-+ status = "disabled";
|
|
|
|
|
-
|
|
|
|
|
-- pcie1: pcie@1,0 {
|
|
|
|
|
-+ slot1: pcie@1,0 {
|
|
|
|
|
- reg = <0x0800 0 0 0 0>;
|
|
|
|
|
- #address-cells = <3>;
|
|
|
|
|
- #size-cells = <2>;
|
|
|